CN104975659A - Inorganic heat insulation fireproof board - Google Patents

Abstract

The invention relates to an inorganic heat insulation fireproof board, which consists of a protection board, a base board and a built-in sandwich, wherein the sandwich comprises the following ingredients in percentage by weight: 8 percent to 15 percent of magnesium chlorides, 5 percent to 10 percent of magnesium oxides, 10 percent to 20 percent of expanded and vitrified micro beads, 3 percent to 6 percent of calc silicates, 10 percent to 18 percent of high-alumina cement, 0.05 percent to 0.1 percent of organic silicon water repellents, 0.1 percent to 0.25 percent of polypropylene fiber, 2 percent to 4 percent of bonding agents and 40 percent to 45 percent of water. After the technical scheme is adopted, the viscosity of wet mixtures is improved; the crushing of lightweight aggregates in products is effectively reduced; and the heat insulation performance of the products is greatly improved.

Description

A kind of inorganic heat-insulating fireproof plate

Technical field

The present invention relates to building material field, be related specifically to a kind of heat-insulating fireproof plate with good heat-insulation and heat-preservation fireproof performance, the invention still further relates to the preparation method of this heat-insulating fireproof plate.

Background technology

Along with China's materials for wall innovation and the implementation of Building Energy Conservation Policy, the development and application of energy-saving building material is in widespread attention.At present, domestic mineral-type sheet material kind mainly contains cement board, foamed glass plate, foam concrete plate, pearlite slab etc.The material mainly inorganic coagulation material such as rapid setting cement, flyash of cement board, material is taken by certain match ratio with organic polymer, foam stabilizer, blowing agent etc., foam in mould after stirring at the appointed time, by blank material maintenance certain hour, the then excision forming under certain condition foamed.Its advantage is that production technology is simple, and raw material require low, and easy suitability for industrialized production, fireproof performance is good.Shortcoming is that intensity is low, poor dimensional stability, at the scene easy losing fangle, and surperficial hole wall is crisp, thin, with binding material and coating material in conjunction with bad, have the hidden danger of quality such as hollowing, cracking.

Foam concrete heat-preserving plate belongs to cement based porous light-weight material, and A level is not fired, good heat insulating, is desirable external wall Surgery therapy alternative materials.The common foamed concrete warming plate circulated in present market, its production technology and performance also come with some shortcomings, and seriously constrain its large scale application.Its technical difficult points is the accurate-metering difficulty of raw material quality and match ratio.Conventional main material has: sulphate aluminium cement, mineral admixture and blowing agent, and own material performance inconsistency is comparatively large, and quality is unstable.

The material composition of pearlite heat-insulation plate has expanded perlite and sodium silicate (being commonly called as water glass), fabrication processing for feeding intake, mixing and stirring, the operation such as the shaping and baking of forcing press.It strengthens the gelatification that principle is the shaping and sodium silicate of compression compact, in compression process, most perlite can be broken, perlite after fragmentation significantly can reduce thermal property, and sodium silicate is industrial chemicals, and its ageing resistace, environmental issue all need to pay attention to.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of with inorganic material heat-insulating fireproof plate that is main making and preparation method thereof, overcome the breakable problem of existing PLASTIC LAMINATED, and cost is low, flameproof effect is good.

For solving the problems of the technologies described above, the technical scheme of inorganic heat-insulating fireproof plate of the present invention is as follows:

Electrodeless heat-insulating fireproof plate is made up of protected apron, substrate and its built-in sandwich, and wherein the component of sandwich according to percentage by weight is

Magnesium chloride 8% ~ 15%

Magnesia 5% ~ 10%

Expanded and vitrified small ball 10% ~ 20%

Calcium-silicate 3% ~ 6%

High alumina cement 10% ~ 18%

Organosilicon moisture repellent 0.05% ~ 0.1%

Polypropylene fibre 0.1% ~ 0.25%

Cementing agent 2% ~ 4%

Water 40% ~ 45%

Described expanded and vitrified small ball bulk density is 90 ~ 120kg/m ³.

Described high alumina cement strength grade is A700.

Described cementing agent is latex.

Described substrate adopts baume panel.

Described PLASTIC LAMINATED is A2 level.

Make a method for inorganic heat-insulating fireproof plate, comprise the following steps:

1) by 30 ~ 50 parts of high alumina cements, 3 ~ 5 parts of magnesium chlorides, 1 ~ 4 part of magnesia, 0.5 ~ 1 part of polypropylene fibre, 0.5 ~ 1 part of organosilicon moisture repellent is mixed into masterbatch;

2) by 100 ~ 200 parts of expanded and vitrified small balls, 50 ~ 120 parts of high alumina cements, 150 ~ 230 parts of calcium-silicates, 100 ~ 160 parts of cementing agents, 1 ~ 3 part of masterbatch composition is dry mixed material;

3) material that is dry mixed mixed to be added water by the weight ratio of 0.8 ~ 1.2:1 and stirs into wet mixture;

4) compound that will wet injects mould molding;

5) demoulding in 1 ~ 2 hour under 20 ~ 35 degrees celsius;

6) goods having taken off mould are pushed the thermostatic chamber maintenance 24 ~ 48 hours of 30 ~ 50 degrees Celsius;

7) goods good for maintenance are carried out excision forming by engineering design size;

8) goods of excision forming are piled up under being placed on the natural conditions of 5 ~ 40 degrees Celsius and are got product for 2 days.

In step 3), wet mixture diffusance is between 10 ~ 20mm.

The present invention, owing to have employed technique scheme, improves the viscosity of wet compound, effectively reduces the fragmentation of lightweight aggregate in goods, significantly improves the heat-insulating property of goods.

Detailed description of the invention

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

Embodiment 1

1) by 30 parts of high alumina cements, 3 parts of magnesium chlorides, 1 part of magnesia, 0.5 part of polypropylene fibre, 0.5 part of organosilicon moisture repellent is mixed into masterbatch;

2) by 100 parts of expanded and vitrified small balls, 50 parts of high alumina cements, 150 parts of calcium-silicates, 100 parts of latexes, 1 part of masterbatch composition is dry mixed material;

3) material that is dry mixed mixed to be added water by the weight ratio of 0.8:1 and stirs into wet mixture;

4) adjust the water yield, make wet mixture diffusance between 10 ~ 20mm;

5) compound that will wet injects mould molding;

6) demoulding in 2 hours under 20 degrees celsius;

7) goods having taken off mould are pushed the thermostatic chamber maintenance 48 hours of 30 degrees Celsius;

8) goods good for maintenance are carried out excision forming by engineering design size;

9) goods of excision forming are put and are piled up maintenance under field conditions (factors) and get product for 2 days;

10) this product and substrate, color steel are bonded, protected apron both sides are air-tight state.

Embodiment 2

1) by 50 parts of high alumina cements, 5 parts of magnesium chlorides, 4 parts of magnesia, 1 part of polypropylene fibre, 1 part of organosilicon moisture repellent is mixed into masterbatch;

2) by 200 parts of expanded and vitrified small balls, 120 parts of high alumina cements, 230 parts of calcium-silicates, 160 parts of cementing agents, 3 parts of masterbatch compositions are dry mixed material;

3) material that is dry mixed mixed to be added water by the weight ratio of 1.2:1 and stirs into wet mixture;

4) adjust the water yield, make wet mixture diffusance between 10 ~ 20mm;

5) compound that will wet injects mould molding;

6) demoulding in 1 hour under 35 degrees celsius;

7) goods having taken off mould are pushed the thermostatic chamber maintenance 24 hours of 50 degrees Celsius;

8) goods good for maintenance are carried out excision forming by engineering design size;

9) goods of excision forming are put and are piled up maintenance under field conditions (factors) and get product for 2 days.

10) this product and substrate, color steel are bonded, protected apron both sides are air-tight state.

Embodiment 3

1) by 40 parts of high alumina cements, 4 parts of magnesium chlorides, 3 parts of magnesia, 0.8 part of polypropylene fibre, 0.8 part of organosilicon moisture repellent is mixed into masterbatch;

2) by 150 parts of expanded and vitrified small balls, 70 parts of high alumina cements, 200 parts of calcium-silicates, 130 parts of cementing agents, 2 parts of masterbatch compositions are dry mixed material;

3) material that is dry mixed mixed to be added water by the weight ratio of 1:1 and stirs into wet mixture;

4) adjust the water yield, make wet mixture diffusance between 10 ~ 20mm;

5) compound that will wet injects mould molding;

6) demoulding in 1.5 hours under 30 degrees celsius;

7) goods having taken off mould are pushed the thermostatic chamber maintenance 36 hours of 40 degrees Celsius;

8) goods good for maintenance are carried out excision forming by engineering design size;

9) goods of excision forming are put and are piled up maintenance under field conditions (factors) and get product for 2 days;

10) this product and substrate, color steel are bonded, protected apron both sides are air-tight state.

Be more than better embodiment of the present invention, but protection scope of the present invention is not limited thereto.Any those of ordinary skill in the art are in the technical scope disclosed by the present invention, and the conversion expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore the protection domain that protection scope of the present invention should limit with claim is as the criterion.

Claims (8)

1. an inorganic heat-insulating fireproof plate, is made up of protected apron, substrate and its built-in sandwich, it is characterized in that: the component of sandwich according to percentage by weight is

Magnesium chloride 8% ~ 15%

Magnesia 5% ~ 10%

Expanded and vitrified small ball 10% ~ 20%

Calcium-silicate 3% ~ 6%

High alumina cement 10% ~ 18%

Organosilicon moisture repellent 0.05% ~ 0.1%

Polypropylene fibre 0.1% ~ 0.25%

Cementing agent 2% ~ 4%

Water 40% ~ 45%.

2. inorganic heat-insulating fireproof plate according to claim 1, is characterized in that: described expanded and vitrified small ball bulk density is 90 ~ 120kg/m ³.

3. inorganic heat-insulating fireproof plate according to claim 1, is characterized in that: described high alumina cement strength grade is A700.

4. inorganic heat-insulating fireproof plate according to claim 1, is characterized in that: described cementing agent is latex.

5. the inorganic heat-insulating fireproof plate according to any one of claim 1 to 4, is characterized in that: described substrate adopts baume panel.

6. inorganic heat-insulating fireproof plate according to claim 1, is characterized in that: described PLASTIC LAMINATED is A2 level.

7. make a method for inorganic heat-insulating fireproof plate according to claim 1, it is characterized in that, comprise the following steps:

1) by 30 ~ 50 parts of high alumina cements, 3 ~ 5 parts of magnesium chlorides, 1 ~ 4 part of magnesia, 0.5 ~ 1 part of polypropylene fibre, 0.5 ~ 1 part of organosilicon moisture repellent is mixed into masterbatch;

2) by 100 ~ 200 parts of expanded and vitrified small balls, 50 ~ 120 parts of high alumina cements, 150 ~ 230 parts of calcium-silicates, 100 ~ 160 parts of cementing agents, 1 ~ 3 part of masterbatch composition is dry mixed material;

3) material that is dry mixed mixed to be added water by the weight ratio of 0.8 ~ 1.2:1 and stirs into wet mixture;

4) compound that will wet injects mould molding;

5) demoulding in 1 ~ 2 hour under 20 ~ 35 degrees celsius;

6) goods having taken off mould are pushed the thermostatic chamber maintenance 24 ~ 48 hours of 30 ~ 50 degrees Celsius;

7) goods good for maintenance are carried out excision forming by engineering design size;

8) goods of excision forming are piled up under being placed on the natural conditions of 5 ~ 40 degrees Celsius and are got product for 2 days.

8. the method for making inorganic heat-insulating fireproof plate according to claim 7, is characterized in that: in described step 3), wet mixture diffusance is between 10 ~ 20mm.