JP2001058815A - Molding precursor of aqueous film-forming inorganic compound increased in molecular weight and molding thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To replace a synthetic resin and foams or FRPs especially in fear of combustion and disposal pollution with an inorganic substance and reduce the pollution by using a molding precursor of an inorganic polymer exhibiting a thermoplastic behavior. SOLUTION: A high-molecular weight aqueous film-forming inorganic compound which is a substance composed of an aqueous siloxane or a silanol and has >=1,000, practically >=4,000 weight-average molecular weight at >=2 molar ratio of SiO2/Na2O is converted into an alkoxide and formed into fine particles to thereby provide a molding precursor. The resultant precursor can optionally be regulated to a powder size without sticking or fusing even when water is included therein. As a result, an incombustible molded product capable of carrying out stable type disposal treatment can be molded according to a conventional method for molding synthetic resins.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial applications] Petrochemicals and their macromolecular chemistry have brought great convenience to the people's lives, but at the same time generate pollutants such as environmental hormones, dioxins, and heavy metals, and have caused a great deal of accumulation to date. ing. In addition, the black smoke, odor and exhaust gas generated during the waste incineration process have a bad influence on the living environment. On the other hand, recycling is being promoted, but the basic solution has not been reached. It has not been realized even if it seeks pollution products. If there is a coating material, a molding material, a film material, a board material, or a heat insulating / packaging material made of inorganic materials, no volatile substances and environmental hormones are generated in the living environment, and the health of the living environment as well as disaster prevention. Become a product. Also, if it is an inorganic product, even if it is dumped, it is reduced to soil and becomes a safe product.
There are enormous fields of use in place of synthetic resins. The productivity was high because the synthetic resin was thermoplastic. If inorganic compounds, which had been considered impossible in the past, become thermoplastic, it will be possible to realize the same mass production as synthetic resins, but this has not yet been achieved.

[0002]

2. Description of the Related Art An inorganic thermoplastic material is glass, but its plasticization temperature is high, and it does not produce molding mass productivity like a synthetic resin. Although sodium silicate is available, it is strongly alkaline, has only a small molecular weight, and is a colloid. When it is dried and observed finely, it has voids and easily absorbs moisture, making it not a daily use product. Further, there are phosphoric acid and alkoxide compounds, but they do not have thermoplasticity and film formation hardening performance is not sufficient.

An aqueous and film-forming material is a synthetic resin PVA.
There is an emulsion that is not water-resistant, and also has a synthetic resin suspended as a coating and water is evaporated to form a film.
Latex water-based paints have a solid content suspended to 50% or more, but there is a problem with waste combustion, and there is no water-based paint of non-polluting inorganic compounds. Even in the case of silicon resin, the composition organic matter burns to produce black smoke and produces a bad smell, and it is difficult to dispose of it.

A urethane resin that reacts and foams by mixing the liquid A and the liquid B is used for room temperature foaming. However, a fire or a fire caused by welding at a site causes a serious disaster and causes a problem.

[0005]

2. Description of the Related Art Conventional synthetic resin molded products are not safe products for disaster prevention. Styrofoam and urethane foam burn with black smoke and foul odor, and are often killed by the combustion gas. Phenol and urea resin also burn to generate formalin, which is not preferable for disaster prevention. Polyethylene and polypropylene moldings burn easily. That is, conventional synthetic resins and their foams have problems in disaster prevention, and some of them generate environmental hormones in health, and even if they are dumped, they are not reduced to soil. Aqueous inorganic substances, for example, water glass No. 1, have a molar ratio of Si
When /Na=1.03, the molecular weight (hereinafter referred to as the weight average molecular weight) was only 140 or less, resulting in a highly viscous substance, not reaching the minimum molecular weight of 1000 defined as a polymer, and no water resistance. As the molar ratio was increased to 2 or more, the viscosity increased, and a low viscosity of 500 CP or less could not be obtained.

[0006] Although there are ALC, cement foam and ceramic foam, they do not become light and light and require long-term high-temperature curing for production. High cycle molding such as molding of synthetic resin could not be performed.

[0007]

DISCLOSURE OF THE INVENTION The present invention relates to a light-weight synthetic resin product, which can be manufactured with good productivity, does not become brittle, has a handling strength, is nonflammable, is safe against fire, and can be dumped in soil. We propose a material and a molding method for producing a reducible inorganic molded body. That is, the material to realize this is water-based, which can be generally referred to as a polymer, and has a high molecular weight of 1,000 or more.
It must be an aqueous thermoplastic film-forming inorganic compound.

[0008] It is an aqueous inorganic substance that is healthy without volatile substances, safe to fire, and does not emit harmful exhaust gas when burned. Even if the inorganic substances that do not contain heavy metals are discarded, they become essential nutrients for plants and reduce them to the soil, so that they do not cause pollution. Impregnating fabric or wood can be a persistent fire protection material.

In order to obtain the same moldability as synthetic resin,
It must be a thermoplastic polymer amorphous aqueous film-forming inorganic compound that has film-forming properties and high molecular weight.

Patent No. 20282 proposed by the present inventors.
No. 03 "Aqueous film-forming inorganic compound" is a novel compound obtained by converting a crystalline raw material into an amorphous (amorphous) high-concentration aqueous inorganic compound.

The above-mentioned "aqueous film-forming inorganic compound" is an amorphous high-concentration aqueous film-forming inorganic compound (hereinafter abbreviated as MF), which is a mixture of a dimer or a trimer of an alkaline silanol and a siloxane. When metal silicon and high concentration alkali metal are contact-reacted, sodium fluoride, borax, sulfite, nitrite, or phosphite are present or in a complex state. It is an aqueous film-forming inorganic compound having a water content of 80% or less, which is self-generated or heated by heating. Under normal pressure, the product was analyzed by electron microscopy.
Observed at 0 magnification, it was a colloid of about 1 micron.
The aqueous material has a drawback of a so-called return phenomenon in which even if it is heated, dehydrated and hardened, it absorbs moisture and becomes brittle.

The present inventors applied LC on an iron plate and observed it with a high-temperature microscope while increasing the temperature from room temperature to 1000 ° C. Up to 200 degrees, the excess water turned into steam and clouded the eyepiece, but at the same time a foaming state could be observed. At 600 ° C., it was foamed, and at 900 ° C., it was pasted into syrup. The cooled coating was similar to a frit.

The FTIR analysis of the LC coated material is shown in FIGS. 1 (immediately after coating at room temperature) and 2 (2 hours after coating). The decrease in the hydroxyl peak at the left end after leaving at room temperature
It shows that it has a film forming ability at room temperature. When this is heated, it foams into a bubble and turns into opal (foam stone) at around 600 degrees, and does not form a smooth surface. Also, if the surface is formed at low temperature, the inside cannot be dried sufficiently,
It is sticky and causes redissolution in water.

If the water content is more than 50 parts by weight, the surplus water does not evaporate because of the formation of a film on the surface even when heated. When heated at a high temperature to accelerate the concentration, film formation and foaming are apt to occur, and it takes a long time at a low temperature of 100 ° C. or less to form a solution having a solid content of 50% or more at normal pressure.

[0015] High cycle molding is possible by using thermosetting or thermoplasticity for molding of synthetic resin.
When heated, water vapor is generated, so this principle is difficult to apply. For heat dehydration and hardening, pellets, beads, or sheets, such as synthetic resin, may be used. If it does not adhere, there is no workability, and even if the product has a water content of 40% or less, uniform casting cannot be performed if the moisture absorption and reversion is used, and production is difficult.

[Means for Solving the Problems]

The results of an analytical test of the amount of water loss of the MF possessed water by temperature are shown below. The water possessed by the present invention is 100
The amount of dehydration when heating at 0 ° C. is determined. Normally, the moisture measurement of resin and wood is calculated from the residue heated at 100 to 110 ° C for 3 hours. If heated to 150 degrees or more, the water content will be less than 30%. Actually, it is possible in the temperature range of 200 to 300 degrees. If heated to 200 degrees C, from Table 1,
The retained water becomes 3.7% and solidifies.

The aqueous film-forming inorganic compound is the same as the above-mentioned FTI
As shown in R (Figs. 1 and 2), the water molecule peak at the left end decreases and has room temperature film-forming properties, so when heated for dehydration, solid sugar melts in hot water and becomes viscous, forming a plasticized product and forming a film. The water becomes a foaming agent, and becomes foamed and solidified in the same manner as caramel baked.

In order to form a molding precursor, it is necessary to form a molded clay-like high gel body or a soft synthetic resin sheet.
In order to obtain this, use the pressure heating method or the reduced pressure heating method, which is equivalent to 100 degrees or more at normal pressure while suppressing heating and foaming, reduce the water content to 30% or less, and make sure that there is no water reversion. Otherwise, it will not be a molding precursor. If this product is made, it can be cured by heating and molded.

When concentrated by the above-mentioned heating under pressure, the colloid does not disappear even in the case of amorphous in the concentration under normal pressure.
When heated under pressure, the aqueous film-forming inorganic compounds of dimer and trimer were polymerized into a coating film having a weight average molecular weight of 5000 or more. No. 1 water glass has a molecular weight of only 140 or less. Even when observed with an electron microscope (SEM, FIG. 3) at 2000 to 5000 magnification, the coating film of the present invention did not show any colloid, and was in the form of a coating film similar to a synthetic resin polymer.

The heating under pressure is performed in the usual range of 1 to 20 K / cm2.
Use a pressurized autoclave;
100-200 ° C under pressure, even at 100 ° C
Between the equivalent. Actually at 100-160 ° C the molecular weight is
It was polymerized to 5000 to 10,000.

At normal pressure,

When the reaction described in the above is carried out, a strongly alkaline substance having a pH of about 12 is obtained. When the amount of alkali metal was reduced to reduce the alkali, the reaction was weak, and it took a long time to heat up the solid content even after heating. Later in the examples,
By heating and reacting the solution containing many unreacted substances in a pressurized and heated vessel, an aqueous film-forming inorganic solution having a pH of 10 to 12 could be easily produced. Electron microscopic observation revealed that the colloid had disappeared and was formed into a polymer film.

The water resistance of these cured products can be obtained by heating at a molar ratio of 2 or more and certainly at 3 or more to 200 ° C. or more. A product prepared at normal pressure at 80 ° C. or higher and having a specific gravity of 1.4 was taken in a paper cup and heated to 200 ° C. or more for 5 minutes in a microwave oven (250 W) to obtain an inorganic foam. Humidity 80
%, The surface of the product under normal pressure produced water absorption and became sticky when left in a room for 1 day, but the surface of the molded product under pressure having a molar ratio of 3 or more according to the present invention did not show any water absorbing solid content.

In the aqueous film-forming inorganic compound used in the present invention, when a large excess of metallic silicon is added to the raw material, even if an alkali metal, sodium fluoride or alkaline borax is added,
A vigorous reaction synthesis was performed until the H value became 12 or less.
Although the Na ratio became about 2 or more, the viscosity was 100 to 200.
It was only centipoise and did not have the viscosifying properties of No. 1 water glass, and the PH was 12-11.

In the above-mentioned composition, when an oxyacid compound or a polyamine compound which reacts with a boric acid compound is mixed when the glazing composition is approximated to a glaze composition (comparison table in Table 3 below), or when borax is used as the above-mentioned catalyst, the mixing is usually performed. Hybridized with pressure.
Mixing ethylene glycol (polydiene) or propylene glycol coated the colloid. The guanidine compound guanidine carbonate was added for hybridization.

When the Si / Na ratio is set to 3 or more and the PH is set to 12 or less, for example, 11.7, even if the retained water is within 80% of a large excess, the heat-cured product can be made water-resistant by dehydrating by heating. did.

The aqueous film-forming inorganic compound disclosed in the above-mentioned Patent No. 202820. Even if the concentration is low, gelation is rapid when monohydric methyl alcohol is mixed, but the solid content is high when divalent or higher isopropyl alcohol (IPA) is mixed. Since a considerable amount of slime was formed and concentrated, the method of taking it out and condensing it easily was explained. The hydroxylol compound having a boiling point of 200 ° C. or less becomes the above-mentioned aqueous film-forming inorganic compound containing an alkali metal and an alkoxide compound. If you mix ~ 20%
It has been found that the viscosities are converted to visco-hydrophobicity. That is, the aqueous film-forming inorganic compound described above, or a mixture thereof, is mixed with a mixture of monovalent methyl alcohol and polyvalent polyethylene glycol (polyethylene oxide, the third edition of the Physical and Chemical Dictionary), and sprayed. If it was dropped, it could be collected as fine particles, dropped into beads, and cut and dropped into pellets. When this was dried, it became a solid with water retention. It was plasticized when heated, and became a cured product when the water content was 5% or less. Polymer of polyethylene glycol (6
000 to 10,000), even when foamed, the strength was higher than that of the synthetic resin. Lime, which becomes Ca and Mg ions, charcoal and dolomite were added, and the mixture was further heated to obtain a polymer. When the particles were formed by the above-mentioned method, no adhesion or fusion occurred even when the container was sealed and sealed while retaining moisture. The monohydric alcohol of the alkoxide-forming product is meta, ethyl, propane,
Butane, pentane, hexane, heptane, octane, nonyl, lauryl, myristyl, cetyl, stearyl, oleyl alcohol, etc., divalent ethylene, propylene glycol, butane, pentanediol, hexane, heptane, octanediol and neopentyl glycol There are trivalent or higher glycerin, trimethylolpropane, pentaerythritol, sorbitan, etc., but those having a boiling point of 200 ° C. or lower or those which can be uniformly mixed with water or the hydroxyol are preferable.

An uncured molded SMC (sheet moat) in which annual cotton or hemp is used as a reinforcing material and impregnated with the aqueous film-forming inorganic compound described in the above item (0025) to reduce the water content to 40% or less.
ulding compound) and BMC (bulk)
The molding compound was a precursor to FRP substitute molding because it can be molded by heating and pressing. The fibers can be inorganic fibers such as glass, rock wool, and carbon fibers, or organic fibers such as poval, propylene, nylon, and polyimide. However, it is preferable to use an infinite annual resource that is reduced to soil when discarded.

When the water content of the film-forming inorganic compound described in (0026) was reduced to 30% or less, pellets could be formed like synthetic resin. When it is cast and heated, the film-forming inorganic compound is a polymer,
The plastic became the same plastic material as plasticized plastic water, and the retained water evaporated to become a foaming agent, which formed a foam without breaking the film formation. The specific gravity was 1 or less, typically 0.3 to 0.5. When the alkali metal content is high, ethylene glycol is used, and when the alkali metal content is low, polyethylene glycol is used.

The present inventors have proposed a method for producing fire-resistant wood in Japanese Patent Application Laid-Open No. 8-73212. However, semi-incombustible wood that can be used for the outer walls of the Building Standards Law could not be easily manufactured. The method of injecting a phosphoric acid compound and further injecting silica sol disclosed in Japanese Patent No. 2678345 increased the cost of the method and materials. PH1 of the present invention having a Si / Na ratio of 2 or more
A solid content of 30% or more with a solid content of 2 or less was easily injected with an amorphous material, and 800 kg / m ^{3 was} injected. When the surface was coated with a mixed solution of 80 parts of the alcohol and 20 parts of polyethylene glycol having a molecular weight of 6000, the mixture was permeated and dried.

[0030]

[Function and effect] A high molecular weight aqueous film-forming inorganic compound which can substitute for synthetic resin having high molding productivity and has no water return property, has a Si / Na ratio of 2 or more and stably 3 or more.
It became possible by setting the pH to 12 or less. According to the prior art, it was difficult to increase the weight average molecular weight of the aqueous inorganic compound to 4,000 or more. became. The general versatility of synthetic resins has been made possible by freely molding them into beads or pellets. The water-based inorganic compound has a water return property even when hardened, and has an adhesive property even when it is formed into beads, and has difficulty in hermetically packaging and transporting. Dehydration of an aqueous inorganic substance does not cause plasticity even when heated, so the surface was made hydrophobic by alkoxide-forming beads and pellets in the presence of water. If these beads are used for electronic heating, 3-5
A minute molding cycle has occurred, and in the extreme, a uniform foam having a specific gravity of 0.05 has become possible, and commercial production of 0.2 to 0.5 suitable for building materials has become possible. By combining with inorganic and organic fibers, it became possible to produce sheets as well as uncured molding precursors SMC and BMC. Semi-incombustible wood for exterior walls, which has been difficult to leaching, has become possible. By replacing expanded polystyrene and polyester FRP, which were the most pollutants of combustion and waste, the product of the present invention could be made into a natural cycle product that was crushed, dumped, and reduced to soil.

Example showing the function and effect The function and effect will be shown by the following examples.

[0031]

Example -1] 90 to 99% purity of the Chinese metal silicon lumps of (5 to 100 mm), a large excess of 150Kg was charged into a stainless steel basket, placed in the lower part of the stainless steel tank 2m ^3, 1T Of water and then borax (USA,
50 kg of Borax 99% purity) and sodium fluoride 20
Kg (99% purity, manufactured by Hashimoto Kasei).
70Kg of caustic soda (made by Tokuyama soda)
Was introduced. Heat was generated by the reaction of the high-concentration alkaline solution dissolved in the silicon solid surface and the lower part, and the temperature rose to 80 ° C or more. The boiling subsided in a few hours, but the temperature was automatically adjusted so as to maintain the temperature at 60 ° C or higher even at night, and heating was performed. One day and night, an aqueous solution having a PH of 11.9 and a specific gravity of 1.4 was obtained. The molar ratio Si / Na was 2.3 or more. Even if the total amount of sodium fluoride and borax is changed to borax, sodium sulfite, phosphite, or nitrite, or KOH or LiOH is used as the alkali metal, the reaction liquid can maintain the alkali metal at pH 12 or less. If the pH is 12 or less, the molar ratio is 2 or more, and the fluidity of the product liquid is 500 in each case.
It was below CP. Hereinafter, these are collectively abbreviated as LC. When the pH was adjusted to 12 or more by adding caustic soda to 150 kg and excluding borax in the previous formulation, the reaction and boiling time was long, and it was necessary to cool and calm down. The product molar ratio is Si / Na = 1.8 or less and PH is 12-12.
4, the specific gravity was 1.4 to 1.5. Hereinafter, this is temporarily referred to as MF. When viewed on a microscope photograph of a slide glass coated and dried at a magnification of 1000, the LC was in the form of a coating film, but the MF was a colloid. Even after boiling and concentration, MF did not form a coating film in the form of aggregated colloids. 4 and 5 are shown in FIGS.

[0032]

Example 2 An aqueous LC solution having a specific gravity of 1.2 and a pH of 12.2 with 80% water retained during the reaction of the previous example was pressurized at 2 K / cm.
Heated to 120 degrees in two vessels. At a specific gravity of 1.5, the PH became 11.5. Water glass No. 1 product of the same specific gravity had a high viscosity like syrup, but the LC product was a light yellow liquid with a fluidity of 100 to 300 centipoise. No heating temperature above 200 degrees was required.

[0033]

Example 3 The half-way liquid of 80% of the water retained in the previous example was decompressed to 1 Torr by a reduced pressure heating device of Sakuma Works.
C and heated to 130 ° C under normal pressure. An aqueous solution having a specific gravity of 1.48 and a pH of 11.34 was obtained in the same manner as when heating under pressure. Since the heating temperature and speed can be adjusted according to the size of the water holding, it can be manufactured without being affected by the water holding. When the heating temperature was increased, the viscosity was not increased to 200 ° C. or more. There was no need for the temperature to be equal to or higher than the normal pressure of 150 ° C.

[0034]

Example 4 In a 20 liter container with a pressure of 5 K / cm2, 15 kg of water and 5 kg of metallic silicon were charged, and 1 kg of caustic potash and 2 kg of borax were simultaneously charged and heated to 130 ° C. When the reaction proceeded, hydrogen was exhausted when a small hole was provided and exhausted. When the exhaust gas was ignited to confirm this, a flame was generated. An LC solution having a molar ratio of 3 and a pH of 11.2 and a specific gravity of 1.48 was obtained.

[0035]

EXAMPLE-5 LC of (Example-1) and (Example-4)
4 shows a comparison of elemental analysis values between a product and a known frit.
When the LC was heated, an inorganic coating was formed at around 900 ° C.

[0036]

Example-6 DTA-TG analysis diagram of montmorillonite which is a layered compound showing a molar ratio of SiO2 / Al2O3 = 4 and LC solution of PH11.9 and specific gravity 1.4 shown in the above (Example-1) When they were compared, they showed almost similar shapes. The LC / Si / Na = 3 molar ratio is
Even if it contained water, it became insoluble in water. In addition, 35
A 5-fold diluted solution of 5% hydrochloric acid was dropped and the pH was observed.
Until it descends straight, it levels off at PH10 and has a Bacher band. That is, it is presumed that it is a disilicate plate-like multilayer body, and LC is an inorganic polymer having a high molecular weight bonded in layers.

[0037]

Embodiment-7
The LC of (Example-1) was analyzed by IR spectrum at Nippon Kasei Analysis Center. 3800-2400cm-1 Silanol-adsorbed water 1000cm-1 Siloxane-adsorbed water 900cm-1 Silanol 780cm-1 Siloxane The presence of silanol and siloxane, low viscosity of 200cp or less, broad and sharp in X-ray analysis It proved to be amorphous without a peak.

[0038]

Example-8 The LC containing boric acid / borax was arbitrarily compatible with the reagents poly, diethylene and polypropylene glycol which were all compounds. It was also compatible with guanidine carbonate (manufactured by Sanwa Chemical). Also compatible with polyamine epoxy (Ganz Kasei, Arakawa Hayashi) solution.

[0039]

Embodiment-9 The above-mentioned LC having a molar ratio of 2 or more is 500 C
Since it has a fluidity of P or less, it was impregnated into cotton, hemp, wool, pulp, wood, etc., and the weight was 2 to 6 times that of the impregnated material. 60 ~
Dry at 120 ° C without foaming and keep the water at 20-40
%. The nonwoven fabric was SMC, and the short fiber was BMC. If the water content, which is twice or more the weight of the fibrous material, is 20 to 40%, it was placed in a rib-shaped three-dimensional mold and heated by pressing at 150 ° C. The molded product had a thickness of 1 mm and a rib thickness of 10 mm, but a bending strength of 200 kg / cm ₂ or more. The reinforcing fiber can be glass, inorganic fiber or organic fiber, but a non-woven fabric is better than a woven fabric. For example, Nisshinbo's cotton non-binder non-woven fabric can be molded neatly under pressure. The polyamine or guanidine hybrid of Example-8 was poured on a sheet,
It was dried to obtain a film.

[0040]

Example 10 The above-mentioned LC having a molar ratio of 2 or more was dried in a drier to 30% of retained water, and formed into granular pellets. This was put into a silicon mold, arranged side by side, and pressed. If a steam discharge gap is prepared, heating at 200 ° C. results in a specific gravity of 20 mm × 300 mm × 300 mm.
4 was able to be molded. This is an example in which heat plasticization and foam film hardening and molding were performed.

[0041]

Example 11: A 30% solids LC solution having a molar ratio of 3 was heated under reduced pressure using a liquid solidification molding rim tester of Yamashiro Precision Machinery.
Injection heating molding was possible with a mold equipped with a special heater, with the retained water at 30%. It becomes a plasticized product from a liquid phase and is solidified and cured. The product was a small cup with a thickness of 0.7 mm. It was found that improved molds with heaters enabled both cycle speed and molding of large products. It was shown that three-dimensional injection molding is possible if pelletized. Concentration of the 30% solution increased the weight average molecular weight, thus increasing the molar ratio to 4 or more. Molar ratio of 4
With the above materials, the heat-cured body at 200 ° C. or higher became insoluble even when immersed in water.

[0042]

Example -12 Even with the above-mentioned LC 30% liquid having a molar ratio of 3 or more, 30 g of the liquid was placed in a paper cup, placed in a microwave oven of 350 W, and heated for 5 minutes. When this was observed, it was boiled off and concentrated to form a plasticized coagulated product, which then expanded and expanded, lost water and solidified. It showed the same molding phase as when carmela was baked from caramelized sugar. Heat sources are electric, electronic,
Any heating device such as a sound wave can be used. 300
After heating at a temperature of C, it became insoluble in water.

[0043]

[Example-13] Cedar wood having a specific gravity of 0.3 25X150X3
00 (unit: mm) was placed in the above-mentioned LC solution having a molar ratio of 2 and a specific gravity of 1.4, and was boiled at 80 ° C. It was dried (80 ° C for 48 hours) because the specific gravity was about 0.9, and the specific gravity was 0.5.
The solid content was 240 kg / m ₃ . This was subjected to a leaching test for the outer wall for 2 weeks, and the loss of dry weight thereafter was within 5%. Make this plate 12mm thick,
It was connected to a cm square and subjected to a quasi-noncombustible fire test (Toyo Seiki Fire Test Machine). The TDθ was 12, the afterflame was 0, and the product was a quasi-noncombustible product.

[0044]

[Execution cooling -14] When the above-mentioned LC liquid is PH12 or less, Si /
When the Na ratio is 2 or more, an example will be described in which powder, beads, or pellets whose surface is hydrophobized are formed. Mixing ethylene glycol (anhydrous reagent) as a typical example of a dihydric alcohol and polyethylene glycol of a polyhydric alcohol with an LC solution at a weight ratio of 1% or more and 100% viscous with time. In the case of multivalent materials, if the amount is increased, aggregates are formed in a short time. If a monohydric alcohol is mixed, methyl is faster in ethyl and IPA is slower in aggregation. 3 to 20 parts by weight of the above-mentioned polyhydric alcohol, for example, polyethylene glycol, is mixed with the low-boiling point methanol, which is the fastest flocculation, and 1% or more of the non-added or the above-mentioned 1 to polyvalent is mixed therein. LC
The liquid was sprayed and sprayed to give a fine product, dropped to form beads or pellets, and pulled up and dried to form a surface-hydrophobic molding precursor. 18 in the mold
When heated to 0 degrees, it foamed and fused. Heating and molding within 300 degrees were possible.

[0045]

[Effects of the present invention] The aqueous film-forming inorganic compound of the present invention has a water return property in its cured product. The present invention is directed to a method of producing a cured product having water resistance even if it is aqueous.
/ Na2O molar ratio is 2 or more, surely 3 or more,
When the pH was adjusted to 12 or less and the water content was reduced to 3.7% or less by heating and dehydration, a water-resistant cured product was obtained. Thermoplastic molding or foam molding such as synthetic resin cannot be molded without a high molecular weight capable of forming a film. If the aqueous material has a high molecular weight, it becomes a plasticized product as it is heated and dehydrated. However, the synthetic resin is in a state similar to a phenomenon in which the synthetic resin is softened and melted by heating, leading to heat dehydration and hardening. Since the product of the present invention is a mixture of silanol and siloxane, it is appropriate to judge by the weight average molecular weight, and it became possible by maintaining the same inorganic high molecular weight as the organic high molecular weight of 1000 or more. . The powder precursor can be molded into a non-combustible inorganic insulator by a pressurized internal heat press.
Small injection molding is now possible. Similarly, molding of foams became possible. In fact, it has become possible to produce non-combustible inorganic substances for synthetic resin, especially FRP of styrene foam and polyester products, which is the main cause of combustion and waste pollution.

[0046]

[Brief description of the drawings]

FIG. 1 shows an FTIR analysis immediately after the application of the above-mentioned LC solution. In FIG. 2, the height of the leftmost hydroxyl group peak decreased when the product of FIG. 1 was left at room temperature. This proves that the film was formed at room temperature. FIG. 3 is an SEM photograph of the product of the invention, showing that it is a colloid dispersed in water. Figure-
No. 4 shows a state in which water is evaporated and the colloids are close to each other, but the film is not formed into a uniform film even when the solution is concentrated. Figure 5 shows
S of the present invention when Si / Na is 2 or more and PH is 12 or less
It is an EM photograph. It showed that it became a polymer coating like synthetic resin without the appearance of colloid.

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Claims (9)

[Claims] 1. An aqueous film-forming inorganic compound-forming compound having a temperature range of 200 ° C. or lower and 80 ° C. or higher,
The water content is less than 80 parts by weight, the weight average molecular weight is 1000, which is formed by reacting the Si / Na ratio to the component ratio of 2 or more.
A method in which the above-mentioned high molecular weight aqueous film-forming inorganic compound is used as a molding precursor, heated to be a plastic, and dehydrated and cured. 2. The molding precursor according to claim 1, wherein the compounded material capable of forming an aqueous film-forming inorganic compound or the material formed by the reaction is heated to a high temperature under pressure or reduced pressure within the temperature range described in the preceding item. High-molecular-weight aqueous film-forming inorganic compound formed by the reaction and containing less than 80 parts by weight of water 3. The high-molecular-weight aqueous film-forming inorganic compound according to claim 1, comprising a siloxane and a silanol salt.
i / Na ratio is 2 or more, PH is 1
Low viscosity, high molecular weight aqueous film-forming inorganic compound with a viscosity of 2 or less and 500 CP or less 4. The high-molecular-weight aqueous film-forming inorganic compound according to claim 1, wherein the high-molecular-weight aqueous film-forming inorganic compound contains boric acid or borax and is a component similar to a glaze, and is amorphous and has a pH of 12 or less. 5. The high molecular weight aqueous film-forming inorganic compound according to claim 1, which is mixed with a monovalent or polyvalent / monovalent / polyvalent mixed hydroxyol compound, or scattered, dropped or cut and dropped. A high molecular weight aqueous film-forming inorganic compound which has been brought into contact with the hydroxyol compound to form an alkoxide compound. 6. The high-molecular-weight aqueous film-forming inorganic compound according to claim 1, wherein the water content of the high-molecular-weight aqueous film-forming inorganic compound is 40 parts by weight or less, and an organic or inorganic fiber such as cotton thread, hemp, carbon fiber, or glass fiber is mixed. A high molecular weight aqueous film-forming inorganic compound that is not mixed, has no concentrates, films, pellets, sheets, SMCs, and BMCs, and has become a heat molding precursor or a heat foaming curing molding precursor for heat dehydration curing. 7. The method according to claim 1, wherein the high molecular weight aqueous film-forming inorganic compound according to claim 1 is heated to 150 ° C. or more to plasticize and dehydrate the retained water to 30 parts by weight or less to form a cured product. A high molecular weight aqueous film-forming inorganic compound forming precursor that can be formed, and a molding method in which it is heated and cured at normal pressure or under pressure, and cast or pressed under pressure 8. A method according to claim 1, wherein said high-molecular-weight aqueous film-forming inorganic compound molding precursor is prepared by using water as a foaming agent.
An inorganic lightweight material which has been heated and cured to a temperature of not less than 300 ° C. to form a foam having a specific gravity of 1 or less, and the high molecular weight aqueous film-forming inorganic compound molding precursor, are cast at normal pressure or pressure. Molding method to make lightweight cured product by heating 9. A high-molecular-weight thermoplastic aqueous film-forming inorganic compound according to claim 1, which is dried by impregnation at 130 ° C. or less by boiling impregnation or pressurization or press-in under reduced pressure to reduce the water content to 10% or less. Trace leached wood for fire protection and its molding method