CN108753156B - Nanometer fireproof heat-insulating paint coating and preparation method thereof - Google Patents

Abstract

The invention discloses a nanometer fireproof heat-insulating paint coating and a preparation method thereof, and the technical scheme is as follows: the composition is formed by mixing a component A and a component B, wherein the component A comprises the following components: 83-90% of a cross-linking agent A, 3-5% of a chain extender A, 1-6% of a coupling agent A and 2-6% of a solvent A, wherein the component B comprises the following components: 0.1-1% of polyester polyurethane 8.2-19.6 curing agent B, 0.8-2% of polyether modified organic silicon, 50-70% of ethanol, 5-13% of propylene glycol monomethyl ether, 0.5-1.5% of ethyl acetate, 2640.1-0.3% of antioxidant and 5-10% of purified distilled water.

Description

Nanometer fireproof heat-insulating paint coating and preparation method thereof

[ technical field ] A method for producing a semiconductor device

The invention belongs to the technical field of fireproof materials, and particularly relates to a nanometer fireproof heat-insulating paint coating and a preparation method thereof.

[ background of the invention ]

Along with the improvement of living standard, in order to meet the requirements of various colors and beautiful decoration, the types of building construction materials are increased day by day, and meanwhile, higher requirements are put forward on the fireproof safety of the materials, which is clearly specified in the building design fireproof standard GB50016-2014, the fireproof design requirements of various places and buildings, the fireproof limit of the materials and the like, and the fireproof limit of the building partition plate is more than 2.5H, which indicates that the existing building materials can be burnt out under a high-temperature environment for a long time, so that the loss of lives and properties of people is brought, and the building materials which can resist the high temperature for a long time in the market are high in cost or can not achieve better decoration effect.

[ summary of the invention ]

The invention aims to overcome the defects of the prior art and provide the nanometer fireproof heat-insulating paint coating which is relatively low in cost and can isolate a fire source for a long time.

The invention also provides a preparation method of the nanometer fireproof heat-insulation paint coating.

The technical scheme of the invention is as follows:

a nanometer fireproof heat-insulating paint coating is formed by mixing a component A and a component B, wherein the component A comprises the following components:

the component B comprises the following components:

preferably, the crosslinking agent A is methyltrimethoxysilane, and the chain extender is dimethyldimethoxysilane.

Preferably, the coupling agent A is formed by mixing two or three of gamma- (2, 3-epoxypropoxy) propyl trimethoxy, silane (KH-560) and aluminate coupling agent.

Preferably, the solvent A is methanol.

Preferably, the polyester polyurethane is composed of the following components in percentage by mass in the component B:

preferably, the curing agent B is 1, 4-dimethylpiperazine.

Preferably, the corrosion inhibitor B is 2-phosphate-1, 2, 4-butane tricarboxylate (PBTCA), and the molecular structural formula is as follows:

the PBTCA has low phosphorus content, has structural characteristics of phosphoric acid and carboxylic acid, has better scale inhibition and corrosion inhibition performance, has performance superior to common organic phosphoric acid at high temperature, has stable molecular structure as a phosphorus source, and forms a polymer product with stable structure with other raw materials of the component B in the catalytic reaction of the component A.

Preferably, the used polycaprolactone diol is one of PCL500, PCL1000, PCL4000 and PCL6000, and the used plasticizing dispersant polyethylene glycol is one of PEG200, PEG400, PEG600, PEG800, PEG1000, PEG1500 and PEG 2000.

Preferably, the A component and the B component are mixed in a mass ratio of 1: 3.

A preparation method of a nanometer fireproof heat-insulating paint coating comprises the following steps:

(1) the specific method for preparing the component A solution is as follows:

(a) dissolving aluminate coupling agent powder into a proper amount of methanol, and then adding KH560 silane coupling agent to prepare aluminate silane coupling agent solution;

(b) adding a proper amount of methanol solvent into chain extenders of the crosslinking agent methyl trimethoxysilane and the dimethyl dimethoxy silane for dilution and stirring to prepare a reaction solution for catalyzing, dispersing and leveling the component B;

(c) mixing the two solutions (a) and (b) in a sealed high-speed stirring container with a constant temperature of 16-20 ℃, stirring for 20-30 min at a high speed, observing the solubility of the solution until the solution is transparent and has no turbid matters, and storing at a constant temperature to obtain a component A solution for catalytic reaction;

(2) the component B is prepared by the following specific method:

(d) firstly, heating purified distilled water to 60-70 ℃, adding antioxidant BHT264 into the hot water, stirring for 5-10 min, and cooling to normal temperature for later use after the antioxidant is completely dissolved;

(e) sequentially adding a small amount of polycaprolactone diol, polytetrahydrofuran diol and butanediol into a container with a constant temperature of 16-20 ℃ according to the mass fraction requirement of the components of the formula, slowly adding an industrial solvent ethyl acetate for dilution and stirring for 15-25 min, then adding IPDI (isophorone diisocyanate), PEG (polyethylene glycol), a dispersion diluent propylene glycol monomethyl ether, slowly adding industrial alcohol ethanol for dilution and proportioning, stirring and blending for 20-30 min, then adding a corrosion inhibitor PBTCA (polybutyra-based ternary copolymer) and a curing catalyst 1, 4-dimethylpiperazine, blending and stirring for 10-15min, and adding an antioxidant solution completely dissolved and a leveling defoaming agent polyether modified organic silicone oil;

(f) injecting nitrogen into the solution in the step (e) in a closed container to remove redundant air in the container, stirring at a high speed for 20-30 min in a closed manner to obtain a component B, and cooling to normal temperature for later use;

(3) preparing a nano fireproof heat-insulating paint coating:

(g) and blending the room-temperature solutions of the A, B two components, stirring at a high speed for 1-2 h, and naturally dissipating air bubbles in the coating after stirring is finished, thus obtaining the nano fireproof heat-insulating paint coating.

Compared with the prior art, the invention has the following advantages:

the invention relates to a nanometer fireproof heat-insulating paint coating which is prepared by blending A, B components: the component A is related cross-linking agent, coupling agent, chain extender or diluting solvent used by the component B; the component A comprises a cross-linking agent, a coupling agent and a chain extender, wherein the cross-linking agent, the coupling agent and the chain extender are prepared by uniformly mixing and stirring 80-95%, 1-5% and 3-5% of the three raw materials in mass ratio and dissolving in methanol, and are stored in a closed container with the constant temperature of 16 ℃, the component B is a polymerization reaction type polyester polyurethane aqueous solution, the raw materials are widely purchased and are common chemicals, the cost is low, the component A catalyzes the component B to fully react to form a high polymer with poor fluidity and excellent flame retardant effect under the high temperature condition, and a combination of a carbon source, a phosphorus source and the like is fully utilized to form a stable polymer, so that the fireproof performance and high adhesive force of the coating are ensured; the flexibility of the paint is enhanced by adding the PEG raw material, and the paint is colorless, transparent and slightly sour, so that the excellent high perspective effect and fireproof performance of the product are ensured, and the paint is coated on the surface of a building material, can block a fire source for a long time in a high-temperature environment and has low cost;

the preparation method of the nanometer fireproof heat-insulating paint coating has the advantages of simple preparation process, convenient operation method, loose reaction conditions, extremely convenient process for preparing the coating, environmental protection, easy control, stable quality and suitability for industrial batch production.

[ detailed description ] embodiments

The invention is further described below with reference to specific examples:

a preparation method of a nanometer fireproof heat-insulating paint coating comprises the following steps:

(1) the specific method for preparing the component A solution is as follows:

(a) dissolving aluminate coupling agent powder into a proper amount of methanol, and then adding KH560 silane coupling agent to prepare aluminate silane coupling agent solution;

(b) adding a proper amount of methanol solvent into chain extenders of the crosslinking agent methyl trimethoxysilane and the dimethyl dimethoxy silane for dilution and stirring to prepare a reaction solution for catalyzing, dispersing and leveling the component B;

(c) mixing the two solutions (a) and (b) in a sealed high-speed stirring container with a constant temperature of 16-20 ℃, stirring for 20-30 min at a high speed, observing the solubility of the solution until the solution is transparent and has no turbid matters, and storing at a constant temperature to obtain a component A solution for catalytic reaction;

(2) the component B is prepared by the following specific method:

(d) firstly, heating purified distilled water to 60-70 ℃, adding antioxidant BHT264 into the hot water, stirring for 5-10 min, and cooling to normal temperature for later use after the antioxidant is completely dissolved;

(e) sequentially adding a small amount of polycaprolactone diol, polytetrahydrofuran diol and butanediol into a container with a constant temperature of 16-20 ℃ according to the mass fraction requirement of the components of the formula, slowly adding an industrial solvent ethyl acetate for dilution and stirring for 15-25 min, then adding IPDI (isophorone diisocyanate), PEG (polyethylene glycol), a dispersion diluent propylene glycol monomethyl ether, slowly adding industrial alcohol ethanol for dilution and proportioning, stirring and blending for 20-30 min, then adding a corrosion inhibitor PBTCA (polybutyra-based ternary copolymer) and a curing catalyst 1, 4-dimethylpiperazine, blending and stirring for 10-15min, and adding an antioxidant solution completely dissolved and a leveling defoaming agent polyether modified organic silicone oil;

(f) injecting nitrogen into the solution in the step (e) in a closed container to remove redundant air in the container, stirring at a high speed for 20-30 min in a closed manner to obtain a component B, and cooling to normal temperature for later use;

(3) preparing the nano fireproof coating:

(g) and blending the room-temperature solutions of the A, B two components, stirring at a high speed for 1-2 h, and naturally dissipating air bubbles in the coating completely after stirring is finished, thus obtaining the nano fireproof coating.

Table 1: composition of component A in examples 1 to 4

Table 2: composition of B component in examples 1 to 4

Table 3: comparative tests are carried out on the nano fireproof heat-insulating paint coatings obtained in the examples 1 to 4 and the existing coatings in the market in comparative examples 1 to 2 (standard reference: GB12441-2005 finishing type fireproof coating standard)

The invention relates to a nanometer fireproof heat-insulating paint coating which is prepared by blending A, B components: the component A is related cross-linking agent, coupling agent, chain extender or diluting solvent used by the component B; the component A comprises a cross-linking agent, a coupling agent and a chain extender, wherein the cross-linking agent, the coupling agent and the chain extender are prepared by uniformly mixing and stirring 80-95%, 1-5% and 3-5% of the three raw materials in mass ratio and dissolving in methanol, and are stored in a closed container with the constant temperature of 16 ℃, the component B is a polymerization reaction type polyester polyurethane aqueous solution, the raw materials are widely purchased and are common chemicals, the cost is low, the component A catalyzes the component B to fully react to form a high polymer with poor fluidity and excellent flame retardant effect under the high temperature condition, and a combination of a carbon source, a phosphorus source and the like is fully utilized to form a stable polymer, so that the fireproof performance and high adhesive force of the coating are ensured; the flexibility of the coating is enhanced by adding the PEG raw material, and the coating is colorless, transparent and slightly sour, so that the excellent high perspective effect and the fireproof performance of the product are ensured, the coating is coated on the surface of a building material, a fire source can be blocked for a long time in a high-temperature environment, the cost is low, the preparation process is simple, the operation method is convenient and fast, the reaction conditions are loose, the process for preparing the coating is extremely convenient, the environment is protected, the control is easy, the quality is stable, and the coating is suitable for industrial batch production.

Claims (5)

1. The nanometer fireproof heat-insulating paint coating is characterized by being formed by mixing a component A and a component B, wherein the component A comprises the following components:

83 to 90 percent of cross-linking agent A,

3 to 5 percent of chain extender A,

1-6% of a coupling agent A,

2-6% of a solvent A,

the component B comprises the following components:

8.2 to 19.6 percent of polyester polyurethane,

0.1 to 1 percent of curing agent B,

0.8-2% of polyether modified organic silicon,

50-70% of ethanol,

5 to 13 percent of propylene glycol monomethyl ether,

0.5 to 1.5 percent of ethyl acetate,

2640.1 to 0.3 percent of antioxidant,

5-10% of pure distilled water;

the crosslinking agent A is methyltrimethoxysilane, the chain extender A is dimethyldimethoxysilane, the coupling agent A is formed by mixing two or three of ɤ - (2, 3-epoxypropoxy) propyl trimethoxy, silane KH-560 and aluminate coupling agent, and the solvent A is methanol;

the polyester polyurethane consists of the following components in percentage by mass in the component B:

3 to 6 percent of polycaprolactone diol,

0.3 to 1 percent of polytetrahydrofuran diol,

2 to 5 percent of polyethylene glycol,

0.2 to 0.5 percent of butanediol,

0.1 to 0.6 percent of 2-phosphate-1, 2, 4-tricarboxylic acid butane (PBTCA),

2.6-6.5% of isophorone diisocyanate (IPDI).

2. The nano fireproof heat insulation paint coating of claim 1, wherein: the curing agent B is 1, 4-dimethylpiperazine.

3. The nano fireproof heat insulation paint coating of claim 1, wherein: the polycaprolactone diol used is one of PCL500, PCL1000, PCL4000 and PCL6000, the polyethylene glycol is used as a plasticizing dispersant, and the polyethylene glycol is one of PEG200, PEG400, PEG600, PEG800, PEG1000, PEG1500 and PEG 2000.

4. The nano fireproof heat insulation paint coating of claim 1, wherein: the component A and the component B are mixed in a mass ratio of 1: 3.

5. A method for preparing the nano fireproof and heat-insulating paint coating of any one of claims 1 to 4, which is characterized by comprising the following steps:

(1) the specific method for preparing the component A solution is as follows:

(a) firstly, dissolving aluminate coupling agent powder in a proper amount of methanol, and then adding KH560 silane coupling agent to prepare aluminate silane coupling agent solution;

(b) adding a proper amount of methanol solvent into chain extenders of the crosslinking agent methyl trimethoxysilane and the dimethyl dimethoxy silane for dilution and stirring to prepare a reaction solution for catalyzing, dispersing and leveling the component B;

(c) mixing the two solutions (a) and (b) in a sealed high-speed stirring container with a constant temperature of 16-20 ℃, stirring for 20-30 min at a high speed, observing the solubility of the solution until the solution is transparent and has no turbid matters, and storing at a constant temperature to obtain a component A solution for catalytic reaction;

(2) the component B is prepared by the following specific method:

(d) firstly, heating purified distilled water to 60-70 ℃, adding antioxidant BHT264 into the hot water, stirring for 5-10 min, and cooling to normal temperature for later use after the antioxidant is completely dissolved;

(e) sequentially adding a small amount of polycaprolactone diol, polytetrahydrofuran diol and butanediol into a container with a constant temperature of 16-20 ℃ according to the mass fraction requirement of the components of the formula, slowly adding an industrial solvent ethyl acetate for dilution and stirring for 15-25 min, then adding IPDI (isophorone diisocyanate), PEG (polyethylene glycol), a dispersion diluent propylene glycol monomethyl ether, slowly adding industrial alcohol ethanol for dilution and proportioning, stirring and blending for 20-30 min, then adding a corrosion inhibitor PBTCA (polybutyrace terephthalate) and a curing agent B1, 4-dimethylpiperazine, blending and stirring for 10-15min, and adding an antioxidant solution and a leveling defoaming agent polyether modified organic silicone oil which are completely dissolved;

(f) injecting nitrogen into the solution in the step (e) in a closed container to remove redundant air in the container, stirring at a high speed for 20-30 min in a closed manner to obtain a component B, and cooling to normal temperature for later use;

(3) preparing the nano fireproof coating:

(g) and blending the room-temperature solutions of the A, B two components, stirring at a high speed for 1-2 h, and naturally dissipating air bubbles in the coating completely after stirring.