CN104926260B - Inorganic fire-proof light aggregate expanded perlite heat retaining board and preparation method thereof - Google Patents
Inorganic fire-proof light aggregate expanded perlite heat retaining board and preparation method thereof Download PDFInfo
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Abstract
The invention provides an inorganic fire-proof light aggregate expanded perlite heat retaining board and a preparation method thereof; the heat retaining board is composed of the following raw materials in parts by weight: 30-41 parts of expanded perlite, 0.9-1.2 parts of polypropylene fiber, 0.6 part of a hydrophobic agent, 0.1-0.4 part of a mould inhibitor, 44-49 parts of sodium silicate, 8-10 parts of a film-forming additive, 12-18 parts of a light aggregate,15-20 parts of distilled water, and 4-8 parts of a redispersable emulsion powder. In the ratio of the heat retaining board provided by the invention, and with cooperation of the reasonable amount of the hydrophobic perlite, the light aggregate, the polypropylene fiber and the like, the inorganic fire-proof light aggregate expanded perlite heat retaining board meeting national standards is prepared through a reasonable physical method and a reasonable chemical method. A whole heat retaining system of the inorganic fire-proof light aggregate expanded perlite heat retaining board is a relatively safe and reliable heat retaining system. The heat retaining board has the advantages of low density, high bonding strength, high tensile strength and good water resistance, and has the performance completely in conformity with requirements of modern building materials.
Description
Technical field
The present invention relates to building material technical field is and in particular to a kind of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
And preparation method thereof.
Background technology
With the fast development of national economy, the continuous improvement of living standards of the people, the consumption to the energy is also increasing,
In the total energy consumption of China, building energy consumption is one of main aspect of China's energy consumption.According to relevant report, China increases room every year newly
In estate building coverage, major part is highly energy-consuming building, and existing building nearly 90% is that high energy consumption is built.The annual power consumption of national building
Account for more than the 20% of China's generated energy, unit construction area power consumption is the several times of developed country.Wherein main cause is China's building
Heat insulation function imperfection backwardness relative with correlation technique causes.
For energy-saving and emission-reduction, reduce building energy consumption, most common method is to install heat insulation layer additional in exterior wall at present.
Existing insulation material uses low-density loose porous material mostly, because the air of internal filling and closing is right to heat
Stream and conduction play very big barrier effect, thus realizing the effect of insulation.
The mainly organic insulation material that China uses at this stage, such as：Polystyrene block EPS, extruded polystyrene board XPS, poly-
Benzene granule, spraying polyurethane SPU and polyurethane PU hard bubble.Organic insulation material has lightweight, good effect of heat insulation, applies
The easy feature of work.But existing organic insulation material also has its unavoidable shortcoming：Inflammable although existing relevant art carries
The fire protecting performance of high organic material reaches flame retardant effect, but in the case that the intensity of a fire is larger, flame treatment material remains to by point
Combustion, some materials are also possible to produce toxic smog in a large number, increase escape personnel when fire occurs and die like a rat or damped possibility
Property.In addition after organic material is heated in a fire, mechanical property is rapid reduces the risk being also possible to increase it and coming off, and causing need not
The loss wanted.And inorganic heat insulation material does not just have the disadvantage that, its fire resistance rating be A1 level, do not burn, be not fuming and
Heat stability is good, also will not lose intensity because of high temperature.
Therefore, from overall situation and the people life property safety of building energy conservation, substituted with outstanding inorganic heat insulation material
Organic insulation material becomes extremely urgent problem.
Based on rock wool, expanded perlite, it is high that they have acid and alkali-resistance, corrosion-resistant, stability to inorganic heat insulation material, construction
Simplicity, applied widely it is adaptable to the insulation of various body of wall basic unit materials and variously-shaped complexity body of wall is it is most important that it is anti-
Fiery flame-retarding is good, can be widely used for intensive house, public building, large-scale public place, combustible and explosive area etc. other
Strict place is required to fire-protection rating.However, the insulation of existing inorganic heat insulation material and hydrophobicity performance are relatively poor, resistance to compression, anti-
Folding intensity is not high, constrains its development.
Therefore, research and develop and a kind of substitute organic insulation material and density is low, adhesion strength and tensile strength are high, water-fast
What performance was good does not fire insulation material becomes the practical problem of current urgent need to resolve.
Content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of density is low, adhesion strength and tensile strength are high, resistance to
The good inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate of aqueouss energy.
It is a further object of the present invention to provide a kind of method preparing inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate.
The concrete scheme of the present invention is as follows：
First, the invention provides a kind of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate, it is by following parts by weight
Raw material composition：
30 41 parts of expanded perlite,
0.9 1.2 parts of polypropylene fibre,
0.6 part of hydrophober,
0.1 0.4 parts of antifungus agent,
44 49 parts of waterglass,
8 10 parts of coalescents,
12 18 parts of lightweight aggregate,
15 20 parts of distilled water,
48 parts of redispersible latex powder.
Preferably, described coalescents are styrene-acrylic emulsion.
Preferably, described hydrophober is the waterproofing agent of silicone.
Preferably, described lightweight aggregate includes natural weight aggregate, industrial waste, artificial lightweight aggregate and lightweight aggregate concrete.
Preferably, described antifungus agent and redispersible latex powder are the like product that can buy on market.
Preferably, described expanded perlite is hydrophobic expansion pearlite, and it is processed through hydrophobic.
Further, the invention provides a kind of method preparing inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate：First
First expanded perlite is carried out hydrophobic process, after being subsequently added other auxiliary agents and water mix homogeneously, through filtration, compaction moulding, warp
After drying, solidifying, then through high temperature drying finished product.
Preferably, expanded perlite is carried out with the waterproofing agent that waterproofing agent used by hydrophobic process is silicone；Described waterproof
Agent also included waterproof dilution agent before expanded perlite is processed and processes, and described diluent is water and gel, wherein, institute
State that gel accounts for diluent weight 1～5%, the multiple of dilution is 1～20 times；Described dilution after silicone waterproofing agent with swollen
Swollen perlitic weight part ratio is 0.5～8:1.
Preferably, described gel accounts for the 2% of diluent weight, and the multiple of dilution is 8 times, silicone after described dilution
Waterproofing agent is 6 with the weight part ratio of expanded perlite:1.
Beneficial effects of the present invention are as follows：
In the proportioning of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate that the present invention provides, it is equipped with modified hydrophobic Margarita
The reasonable volume of rock, coalescents, lightweight aggregate, polypropylene fibre etc., is configured to by rational physical method and chemical method
The inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate of compound national standard.This inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
Heat-insulation system is integrally a kind of safe and reliable heat-insulation system of comparison.Its density is low, adhesion strength and tensile strength high, resistance to water
Can be good, its performance complies fully with the requirement of modern building material.
Specific embodiment
Below in conjunction with specific embodiment, the concrete technical scheme of the present invention is specifically described.
The invention provides a kind of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate, it is by the raw material of following parts by weight
Composition：
30 41 parts of expanded perlite,
0.9 1.2 parts of polypropylene fibre,
0.6 part of hydrophober,
0.1 0.4 parts of antifungus agent,
44 49 parts of waterglass,
8 10 parts of coalescents,
12 18 parts of lightweight aggregate,
15 20 parts of distilled water,
48 parts of redispersible latex powder.
Wherein, described lightweight aggregate includes natural weight aggregate, Pumex, scoria；Industrial waste includes lytag, expands
Slag pearl；Artificial lightweight aggregate includes haydites of book structure, leca, expanded perlite.Also include lightweight aggregate concrete, it is by light
The dry apparent density that matter coarse aggregate, fine aggregate are formulated is not more than 1950kg/m3Concrete.
Described coalescents are preferably styrene-acrylic emulsion.
Described hydrophober is the waterproofing agent of silicone.
Present invention also offers a kind of method preparing inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate：To expand first
Perlite carries out hydrophobic process, after being subsequently added other auxiliary agents and water mix homogeneously, through filtration, compaction moulding, through drying, solidifying
Afterwards, then through high temperature drying finished product.
Preferably, described expanded perlite is hydrophobic expansion pearlite, and it is processed through hydrophobic.Its hydrophobic processing procedure is such as
Under：Expanded perlite is carried out with the waterproofing agent that waterproofing agent used by hydrophobic process is silicone；Described waterproofing agent is precious to expanding
Zhu Yan also includes waterproof dilution agent and processes before being processed, described diluent is water and gel, and wherein, described gel accounts for dilution
The 1～5% of agent weight, the multiple of dilution is 1～20 times；The waterproofing agent of silicone and the weight of expanded perlite after described dilution
Amount part ratio is for 0.5～8:1.Preferably, described gel accounts for the 2% of diluent weight, and the multiple of dilution is 8 times, has after described dilution
The waterproofing agent of machine silicon class and the weight part ratio of expanded perlite are 6:1.24 hours water absorption rates of untreated expanded perlite reach
To 44.3%, the water absorption rate of hydrophobic expansion pearlite after treatment 8.3%～24.4%, 24h water absorption rate in preferred version
Only 8.3%.
Further, analyze the shadow to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system performance for other raw materials
Ring.
Heat conductivity and dry performance density are that inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system is critically important
Measurement index, the increase expanding hydrophobic pearlite consumption can reduce inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate insulation system
The heat conductivity of system and dry apparent density, but, if the volume expanding hydrophobic pearlite is too high, then inorganic fire light-weight aggregate
Expanded perlite thermal-nsulation plate heat preserving system mechanical property will reduce.Equally, reduce inorganic fire light-weight aggregate as far as possible in research swollen
When swollen pearlite insulation plate heat preserving system heat conductivity and dry apparent density, also to take into account inorganic fire light-weight aggregate expanded perlite
The comprcssive strength of insulation plate heat preserving system and tensile strength and other properties.Therefore, in order to obtain disclosure satisfy that requirement
Inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system is it is necessary to research forms inorganic fire light-weight aggregate expanded perlite
The impact to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system performance for the key component of insulation plate heat preserving system.Cause
This, have studied in project research expansion hydrophobic pearlite, redispersible latex powder, polypropylene fibre etc. to inorganic fire light collection
The impact of material expanded perlite thermal-nsulation plate heat preserving system performance.
The impact to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate for the embodiment 1 hydrophobic expansion pearlite consumption
Hydrophobic expansion hydrophobic pearlite, as the aggregate of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, is
Impact inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system dry apparent density and the key factor of heat conductivity.With
The increase of hydrophobic expansion pearlite volume, the dry apparent density meeting of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Gradual reduction, and the size of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate dry apparent density also reflects heat conductivity
Situation.Meanwhile, the change of dry apparent density also can reflect inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Strength change laws.
According to elementary mix ratio, other compositions ratio is kept to determine constant, research hydrophobic expansion hydrophobic pearlite is to inorganic
Fire prevention light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system affecting laws when, keep powder in ratio in powder for each composition not
Become, when to ensure denseness be zero about simultaneously, research hydrophobic expansion pearlite volume is protected to inorganic fire light-weight aggregate expanded perlite
The impact of the performances such as warm system dry apparent density, comprcssive strength, tensile strength, coefficient of softing, linear shrinkage.Life is tried using industrialization
The product producing, according to the test carrying out properties of regulation, obtain expands the shadow to properties for the hydrophobic pearlite volume
Ring such as table 1.
Table 1 expands the shadow to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system performance for the hydrophobic pearlite volume
Ring
（1）Expand the impact to panel density for the hydrophobic pearlite volume
As can be seen from Table 1, with the increase expanding hydrophobic pearlite volume, inorganic fire light-weight aggregate expanded perlite is protected
The dry apparent density of warm plate heat preserving system assumes downward trend.Expand hydrophobic pearlite and expand treasure as inorganic fire light-weight aggregate
Zhu Yan is incubated the aggregate of plate heat preserving system, and its less bulk density is with it in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
In heat-insulation system, larger volume makes with the increase expanding hydrophobic pearlite volume, and unit mass inorganic fire light-weight aggregate is swollen
The volume of swollen pearlite insulation plate heat preserving system increases, accordingly, unit volume inorganic fire light-weight aggregate expanded perlite thermal-nsulation
The quality of plate heat preserving system is just gradual to be reduced.Preparing inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system test specimen
When, find with the increase expanding hydrophobic pearlite consumption, inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate insulation system
The workability of system is gradually deteriorated.When expanding hydrophobic pearlite volume for 30%, newly mix inorganic fire light-weight aggregate expanded perlite
When insulation plate heat preserving system just becomes mould, viscosity is also preferable, but after spending a few minutes, just has loose sign.And expanding hydrophobic
When perlite volume is 40%, loose phenomenon occurs during molding, no adhesion, this is because light with inorganic fire
Gather materials the increase of perlite consumption in expanded perlite thermal-nsulation plate heat preserving system, in sheet material, play parcel, filling and cementation
The amount of slurry gradually decreases, when the amount of slurry be not enough to package aggregate it is impossible to formed one connection the network system when, no
The performance of machine fire prevention light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system is just gradually deteriorated.Meanwhile, inorganic fire light-weight aggregate expands
The dry apparent density of pearlite insulation plate heat preserving system is led with inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Hot coefficient has close relationship, less due to expanding hydrophobic pearlite bulk density, exists small in a large number and close between granule
The space closed, can reduce the thermal loss that cross-ventilation causes, thus reduce inorganic fire light-weight aggregate expanded perlite protecting
The heat conductivity of warm plate heat preserving system.Therefore with the increase expanding hydrophobic pearlite volume, inorganic fire light-weight aggregate expands precious
The dry apparent density that Zhu Yan is incubated plate heat preserving system gradually declines, in order to obtain the inorganic fire light-weight aggregate of less heat conductivity
Expanded perlite thermal-nsulation plate heat preserving system, ensures the construction of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system simultaneously
Performance, should select expansion hydrophobic pearlite volume can not be more than 40%.We have selected 20.24%～35.75%（I.e. 30～41
Part）Perlite it is ensured that in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system the constancy of volume of slurry situation
Under, reduce the weight of slurry.
（2）The impact to sheet material comprcssive strength, rupture strength for the hydrophobic expansion pearlite volume
The comprcssive strength of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system is mixed with expanding hydrophobic pearlite
The increase of amount, linearly drastically downward trend.When expanding hydrophobic pearlite volume for 20.3%, inorganic fire gently collects
The comprcssive strength of material expanded perlite thermal-nsulation plate heat preserving system reaches 0.76MPa, and when volume increases to 40%, its pressure resistance
Degree low to 0.54MPa.It is because while that hydrophobic expansion pearlite is inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
The lightweight aggregate of heat-insulation system, but the intensity of its own is very low it is impossible to provide for the cementing materials such as lightweight aggregate
The intensity of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, therefore inorganic fire light-weight aggregate expanded perlite thermal-nsulation
The intensity of plate heat preserving system is mainly provided by Binder Materials such as lightweight aggregate and rubber powders.When hydrophobic expansion pearlite volume is larger
When, the amount of Binder Materials just tails off relatively, using the teaching of the invention it is possible to provide the glue of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
The hydrated product of gel material reduces, thus causing the fall of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system intensity
Low.The Changing Pattern of tensile strength is also similar to the Changing Pattern of tensile strength.The increase of the volume of hydrophobic expansion pearlite is described
The comprcssive strength of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, tensile strength can be made to decline.
（3）The impact to fireproof heated board coefficient of softing for the hydrophobic expansion pearlite volume.
The increase of hydrophobic expansion pearlite volume makes inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Coefficient of softing gradually declines.When expansion hydrophobic pearlite volume rises to 40% by 20.3%, inorganic fire light-weight aggregate expands
The coefficient of softing of pearlite insulation plate heat preserving system is reduced to 0.71 by 0.80, reduces 11.3%.Therefore, water-fast from sheet material
For property angle, hydrophobic expansion pearlite volume is not to be exceeded 40%.
（4）The impact that hydrophobic expansion pearlite volume shrinks to inorganic fireproof heat insulating plate
Increase to 40% with hydrophobic expansion pearlite volume by 20.3%, inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
The linear shrinkage ratio of heat-insulation system increases to 0.22% by 0.17%.Increased 29.4%, illustrate when hydrophobic expansion pearlite volume larger
When, linear shrinkage ratio declines by a big margin.
By above-mentioned test and analysis, consider hydrophobic expansion pearlite volume to inorganic fire light-weight aggregate expanded pearlite
Rock is incubated the impact of the factors such as plate heat preserving system workability, strength character and heat-insulating property, selects hydrophobic expansion pearlite
Volume is 20.24%～35.75%（I.e. 30～41 parts）.Ensure that inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system exists
While there is some strength, reduce the dry apparent of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system as far as possible
Density, to reduce the heat conductivity of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system.
The impact to inorganic fireproof heat insulating plate performance for the embodiment 2 redispersible latex powder consumption
Redispersible latex powder is first to be modified processing by polymer emulsion, then again through techniques such as spray drying
Obtained from process.When redispersible latex powder is dissolved in aqueous solution, emulsion can be formed again, when the moisture evaporation in emulsion
Afterwards, organic matter film can be formed.
Keep the component ratios such as hydrophobic expansion pearlite constant, change the volume of redispersible latex powder, research meanwhile
The impact to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system performance for the redispersible latex powder volume change.Can
The change of redispersibility latex powder volume to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system fresh mixing performance and its
He is shown in Table 2 at the impact of performance.
The shadow of table 2 redispersible latex powder volume collection light to inorganic fire expanded perlite thermal-nsulation plate heat preserving system performance
Ring
1）The impact to sheet material dry apparent density for the redispersible latex powder consumption
Redispersible latex powder volume changes to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate as can be seen from Table 2
The impact of heat-insulation system dry apparent density.When redispersible latex powder volume increases to 7.0% by 2.7%, inorganic fire is light
The expanded perlite thermal-nsulation plate heat preserving system dry apparent density that gathers materials change is less.
2）The impact to sheet material resistance to compression and tensile strength for the redispersible latex powder consumption
When the volume of redispersible latex powder is in the range of 2.7%～7.0%, inorganic fire light-weight aggregate expanded pearlite
The comprcssive strength that rock is incubated plate heat preserving system gradually reduces, this is because the air-entraining effect of redispersible latex powder makes no
The degree of compaction of machine fire prevention light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system reduces, thus it is precious to cause inorganic fire light-weight aggregate to expand
Zhu Yan is incubated the reduction of plate heat preserving system comprcssive strength.
When redispersible latex powder volume is less than 5.5%, its volume increases and causes inorganic fire light-weight aggregate expanded pearlite
The reason rock insulation plate heat preserving system tensile strength increases is that the crosslinked action of redispersible latex powder makes inorganic fire light
Gather materials expanded perlite thermal-nsulation plate heat preserving system tensile strength improve.And decrease at volume 7.0% and be because introducing greatly
Amount bubble makes more, the excessive gas that the dry apparent density of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system reduces
The presence of bubble also makes the compactness of structure be affected.Main cause is the emulsion that redispersible latex powder is dissolved in water formation
Again after dehydration, one layer of film having high-flexibility can be formed.
3）The impact to sheet material coefficient of softing for the redispersible latex powder consumption
With the increase of redispersible latex powder volume, inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Coefficient of softing gradually increase, increased to 0.77 during volume 7.0% by 0.73 not mixed.At this moment because redispersible breast
The emulsion that rubber powder is formed after being dissolved in water, can be interlaced by being formed between a part and lightweight aggregate hydrated product after emulsion dehydration
Structure, a part can form organic membrane.This structure makes inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Water absorption rate decreases, and so that the coefficient of softing of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system has been carried
High.
4）The impact to sheet material coefficient of softing for the redispersible latex powder consumption
With the enhancing of redispersible latex powder volume, inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Linear shrinkage ratio reduce, this be on the one hand because the air-entraining effect of redispersible latex powder make inorganic fire light-weight aggregate expand
The contraction that the network structure dehydration that in pearlite insulation plate heat preserving system, the Binder Materials aquation such as lightweight aggregate is formed produces reduces；Separately
On the one hand it is to be formed with high tenacity film due to after the emulsion dehydration of redispersible latex powder formation, part can be disperseed to be incubated
Shrink the stress producing.
Embodiment 3 polypropylene fibre（Stalk fibre, waste and old rock wool fibers）Consumption is to inorganic fire light-weight aggregate expanded pearlite
The impact of rock warming plate performance
For inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, mix a certain amount of fiber, permissible
Improve durability, crack resistance and the shock resistance effect of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system.This is
Because a certain amount of fiber is added in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, in inorganic fire light-weight aggregate
When expanded perlite thermal-nsulation plate heat preserving system stress, fiber can be with the most advanced and sophisticated part stress of discrete flaw, thus limiting
The extension of crackle in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, plays raising inorganic fire light-weight aggregate and expands
The effect of pearlite insulation plate heat preserving system crack resistance.
Therefore, by changing the volume of fiber, research fiber is protected for inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
The impact of warm system properties.Keep the constant rate expanding hydrophobic pearlite and powder of aforementioned research, in order that fiber
It is uniformly dispersed, the method using somewhat increasing a small amount of water, and redispersible latex powder volume is controlled 2.7%.Change fiber
Volume, the impact such as table 3 to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system properties for the polypropylene fibre.
The impact to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system performance for table 3 fibers content
1）The impact to inorganic fireproof heat insulating plate dry apparent density for the polypropylene fibre consumption
As can be seen that when increasing to 0.81% with fibers content by 0%, inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
The change of heat-insulation system dry apparent density less, concentrates on 200kg/m substantially3Left and right, the volume of this explanation fiber is to inorganic anti-
The impact of fiery light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system dry apparent density is little.
2）The impact to inorganic fireproof heat insulating plate resistance to compression, tensile strength for the polypropylene fibre amount
As can be seen that the comprcssive strength of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system is with fibers content
Change also less obvious.This is because fiber itself will not be reacted with other raw materials, also will not generate and can provide by force
The product of degree, therefore it is to the variation tendency of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system tensile strength still
Obviously, when adding of fiber in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, its tensile strength is only
Have 0.20MPa, and an increase with fibers content, the comparison of the growth of tensile strength substantially, when fibers content is 0.81%, its
Tensile strength has been even up to 0.34MPa, this is because adding in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Plus after fiber, fiber random distribution in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, on the one hand can be about
Bundle inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system shrinks the crack producing, and reduces inorganic fire light-weight aggregate and expands
Microdefect in pearlite insulation plate heat preserving system；The opposing party's fiber is protected in inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate
During warm system stress, it is possible to reduce the stress concentration of crack tip, thus delaying the extension of crackle.A lot of researchs also demonstrate fibre
The incorporation of dimension can effectively stop the extension in crack.
3）Polypropylene fibre consumption is to inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system resistance to compression, comprcssive strength
Impact.
As can be seen that the increase of fiber can make the softening of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Coefficient has increase more by a small margin.
4）The impact that polypropylene fibre consumption shrinks to inorganic fireproof heat insulating plate
As can be seen that with the increase of fibers content, inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Linear shrinkage ratio gradually declines.By fibers content be when 0% 0.20% drop to that fibers content is when 0.81% 0.14%, this says
The increase of light fibers volume can effectively reduce the linear shrinkage of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system
Rate.For hydrophobic pearlite inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system, the gelling material such as its lightweight aggregate
The consumption of material is less, and linear shrinkage ratio is relatively low, and after mixing fiber, fiber can play it to inorganic fire light-weight aggregate expanded perlite
The volume stability effect of insulation plate heat preserving system, reduces inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate heat preserving system further
Linear shrinkage ratio.
The above is only the preferred embodiment of the present invention it should be pointed out that these embodiments are merely to illustrate this
Invention rather than restriction the scope of the present invention, and, after having read present disclosure, relevant technical staff in the field
The present invention can be made with various changes or change, these equivalent form of values equally fall into the application appended claims and limited
Scope.
Claims (5)
1. a kind of preparation method of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate, it comprises the steps：To expand first
Perlite carries out hydrophobic process, after being subsequently added other auxiliary agents and water mix homogeneously, through filtration, compaction moulding, through drying, solidifying
Afterwards, then through high temperature drying finished product；Expanded perlite is carried out with the waterproofing agent that waterproofing agent used by hydrophobic process is silicone；
Described waterproofing agent also included waterproof dilution agent before expanded perlite is processed and processes, and diluent is water and gel, its
In, described gel accounts for the 1～5% of diluent weight, and the multiple of dilution is 1～20 times；After dilution the waterproofing agent of silicone with
The weight part ratio of expanded perlite is 0.5～8:1；
Wherein, this inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate is made up of the raw material of following parts by weight：
30 41 parts of expanded perlite,
0.9 1.2 parts of polypropylene fibre,
0.6 part of hydrophober,
0.1 0.4 parts of antifungus agent,
44 49 parts of waterglass,
8 10 parts of coalescents,
12 18 parts of lightweight aggregate,
15 20 parts of distilled water,
48 parts of redispersible latex powder.
2. method according to claim 1 is it is characterised in that described coalescents are styrene-acrylic emulsion.
3. method according to claim 1 is it is characterised in that described hydrophober is the waterproofing agent of silicone.
4. method according to claim 1 is it is characterised in that described lightweight aggregate includes natural weight aggregate, industrial waste, people
Make lightweight aggregate and lightweight aggregate concrete.
5. method according to claim 1 is it is characterised in that described gel accounts for the 2% of diluent weight, the multiple of dilution
For 8 times, after described dilution, the waterproofing agent of silicone and the weight part ratio of expanded perlite are 6:1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410100524.8A CN104926260B (en) | 2014-03-18 | 2014-03-18 | Inorganic fire-proof light aggregate expanded perlite heat retaining board and preparation method thereof |
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| CN201410100524.8A CN104926260B (en) | 2014-03-18 | 2014-03-18 | Inorganic fire-proof light aggregate expanded perlite heat retaining board and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104926260A CN104926260A (en) | 2015-09-23 |
| CN104926260B true CN104926260B (en) | 2017-02-15 |
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| CN105777047B (en) * | 2016-01-27 | 2018-05-04 | 天长市安德丽节能建材有限公司 | A kind of inorganic fire light-weight aggregate expanded perlite thermal-nsulation plate and preparation method thereof |
| CN105948641B (en) * | 2016-04-28 | 2018-04-13 | 中晶工程材料（信阳）有限公司 | A kind of water proof type modified expanded perlite insulation board and its production method |
| CN105948642B (en) * | 2016-04-28 | 2018-04-13 | 中晶工程材料（信阳）有限公司 | The modified expanded perlite insulation board and its production method of a kind of hydrophobic |
| CN106220124B (en) * | 2016-07-29 | 2020-01-21 | 上海轩颂建筑科技有限公司 | Composite expanded perlite plate and preparation method thereof |
| CN106396730B (en) * | 2016-08-30 | 2020-06-26 | 浙江阿斯克建材科技股份有限公司 | Preparation method of perlite heat insulation product |
| CN114085064B (en) * | 2021-12-23 | 2023-01-03 | 舒城诚鑫建材有限公司 | Hydrophobic perlite composite insulation board with low thermal conductivity coefficient and production process thereof |
| CN114412130A (en) * | 2022-01-25 | 2022-04-29 | 陆宇皇金建材（河源）有限公司 | Fireproof plate and ventilating duct |
| CN115159943B (en) * | 2022-07-04 | 2023-10-03 | 中国建筑第五工程局有限公司 | Fireproof light heat-insulating material and preparation method and application thereof |
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| CN1323046C (en) * | 2006-04-28 | 2007-06-27 | 闻峰 | Method for preparing heat-insulating board for building wall |
| CN102329121B (en) * | 2011-07-04 | 2012-10-10 | 信阳天意节能技术有限公司 | Inorganic fireproof heat-insulation board and preparation method thereof |
| CN102584166A (en) * | 2012-02-29 | 2012-07-18 | 深圳市嘉达节能环保科技有限公司 | Modified expanded perlite insulation board and preparation method thereof |
| CN102795818A (en) * | 2012-08-06 | 2012-11-28 | 万俊松 | Self-insulation wall material |
| CN102808459A (en) * | 2012-08-16 | 2012-12-05 | 青岛煜志机械科技有限公司 | Fireproof thermal-insulating plate and preparation process thereof |
| CN102995780B (en) * | 2012-12-14 | 2014-11-05 | 江苏尼高科技有限公司 | Glass fibre tissue compound heat-insulating plate and preparation method for same |
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