CN107603472A - A kind of fire resistant anticorrosive hood and preparation method thereof - Google Patents

Abstract

The present invention is a kind of fire resistant anticorrosive hood, including base material, descends two sides to be designed with scribbling one layer of fire resistant anticorrosive paint on the substrate, the anticorrosion heat-resisting paint includes following components according to the mass fraction：Boric acid modified organic siliconresin：45‑55%；Hard fire colour：20‑30%；Filler：10‑15%；Auxiliary material：1‑2%；Auxiliary agent：2% 4%, the present invention has good heat-resisting quantity and anticorrosive property, can increase the service life.

Description

A kind of fire resistant anticorrosive hood and preparation method thereof

Technical field

The present invention relates to a kind of car engine cover, specifically a kind of fire resistant anticorrosive hood and its preparation Method.

Background technology

With science and technology progress, automobile as simply, efficiently the vehicles receive liking for consumers in general, Therefore, automobile sales volume greatly improves, it is well known that the power resources of automobile are highests in the temperature in engine, enging cabin , in summer, for temperature up to more than 120 DEG C, high temperature season or high temperature are regional, if heat can not shed in time, will result in water Case boils or bigger peril.

The content of the invention

The technical problems to be solved by the invention are the shortcomings that overcoming prior art, there is provided a kind of fire resistant anticorrosive hair Motivation lid and preparation method thereof.

The present invention solve above technical problem technical scheme be：A kind of fire resistant anticorrosive hood is provided, including Base material, two sides is descended to be designed with scribbling one layer of fire resistant anticorrosive paint on the substrate, the anticorrosion heat-resisting paint presses matter Amount number meter includes following components：Boric acid modified organic siliconresin：45-55%；Hard fire colour：20-30%；Filler：10-15%；It is auxiliary Material：1-2%；Auxiliary agent：2%-4%；

The hard fire colour be ferromanganese is black, titanium dioxide, iron oxide red, carbon black, barium sulfate or cadmium it is black in one kind；

The filler includes following components according to the mass fraction：Glass flake：9-13 parts, tiny balloon：10-15 parts, thin,tough silk cloud It is female：10-15 parts, nano silicon：20-35 parts, talcum powder：6-8 parts, fine-grained alumina：15-20 parts, molybdenum disulfide：5-10 Part, manganese dioxide：3-5 parts, barium sulfate：5-8 parts, titanium dioxide：10-12 parts；

Described auxiliary material is compound rare-earth, and described compound rare-earth includes following component by weight percentage：Y：15-18%, Sc： 13-15%, Gd：8-11%, Sm：15-22%, Pr：6-9%, surplus La；

The auxiliary agent includes following components according to the mass fraction：Dispersant：10-15 parts, toughener：8-11 parts, defoamer：2-6 Part, curing agent：15-22 parts, composite flame-retardant agent：5-8 parts, thickener：8-12 parts, silane coupler：17-25 parts；Drier：3- 5 parts；

The dispersant is hydrophobic modified carboxylic acid sodium salt or one kind or its mixture in ammonium salt；

The toughener is methyl methacrylate-butadiene-styrene copolymer or acrylonitrile-butadiene-benzene second It is a kind of in alkene copolymer；

The defoamer is polysiloxane defoaming agent；

Described curing agent is one kind in diethylenetriamine, phenolsulfonic acid, DMP-30/ polyamide 6s 50 or phenol aldehyde modified amine；

The composite flame-retardant agent is one or more of in antimony oxide, aluminium hydroxide or ammonium dihydrogen phosphate；

Described thickener is one kind in diatomite, sodium bentonite, hydroxypropyl methyl cellulose or polyvinyl alcohol；

The silane coupler is a kind of in KH550 or KH560；

The drier is dibutyl tin laurate.

The further restriction technical scheme of the present invention：

Foregoing glass flake is by 80 mesh glass flakes and 40 mesh glass flakes in mass ratio 3：2 ratio mixing.

Foregoing composite flame-retardant agent is antimony oxide, aluminium hydroxide and ammonium dihydrogen phosphate in mass ratio 3:2:2 ratios are mixed Close.

Foregoing hard fire colour cadmium is black；Dispersant is hydrophobic modified carboxylic acid sodium salt；Toughener is methyl methacrylate Ester-butadiene-styrene copolymer；Curing agent is phenol aldehyde modified amine；Thickener is hydroxypropyl methyl cellulose or gathered Vinyl alcohol；Silane coupler is KH550.

The present invention provides a kind of preparation method of hood fire resistant anticorrosive paint, comprises the following specific steps that：

Step（1）：Prepare boric acid modified organic siliconresin：Boric acid and silicones are chosen as reactant, boric acid and silicones Mass ratio is 8.6:1, water consumption is 45% of water consumption needed for silicones complete hydrolysis, and polymerisation is carried out at 80-90 DEG C, Reaction time is 3-5h, and be then heated 4-5h at 150-220 DEG C, had both obtained boric acid modified organic siliconresin；

Step（2）：It is prepared by filler：Glass flake, tiny balloon, sericite, nano silicon and talcum powder are mixed and added Into reacting furnace, temperature is increased to 500-550 DEG C, 3-5h is incubated, is then air-cooled to room temperature, is put into ball mill and grinds, mistake 90 mesh sieves, powders A is obtained, be then again added to fine-grained alumina, molybdenum disulfide, manganese dioxide, barium sulfate and titanium dioxide In reacting furnace, temperature rises to 600-680 DEG C, is incubated 3-5h, is then cooled down, and is combined using water cooling with air cooling during cooling, elder generation Use water cooling to be cooled to 400-460 DEG C of formation alloy with 15-20 DEG C/s cooldown rate, be then air-cooled to 300-350 DEG C, then use Water cooling is ground with 10-15 DEG C/s cooldown rate water cooling to room temperature, then ball mill, is crossed 90 mesh sieves, is obtained powder B, so Powders A and powder B are pressed 3 again afterwards:1.4 ratio be milled in proportioning mixing feeding ball mill, by temperature setting in 300- 380 DEG C, 12-14 hours are stirred, cross 150-200 mesh sieves；It is standby；

Step（3）：It is prepared by auxiliary material：First Y, Sc, Gd, Sm, Pr and La are put into reacting furnace, temperature is increased to 750-820 DEG C, 3-5 hours are incubated, room temperature is then cooled to 10-15 DEG C/s, is then placed in ball mill and crushes, cross 150-200 mesh sieves, it is standby With；

Step（4）：Boric acid modified organic siliconresin, hard fire colour, toughener and defoamer are put into dispersion cylinder respectively, opened Open agitator to be slowly stirred, mixing speed is that 300-400 turns/min, stirs 20-25min, standby；

Step（5）：By step（2）, step（3）And step（4）Mixing is put into mixer, and speed is stirred with 200-260 r/min Spend and be, stir 3-5h, then add composite flame-retardant agent, continue to stir 20-25min, mixing speed is 90-100 r/min, waits and fills Divide after being well mixed and add silane coupler and curing agent in mixer, the high-speed stirred 10- under high shear 15min, mixing speed 350-380r/min, is eventually adding thickener, and with 200-230 r/min, thickener uses spray-on process Thickener is sprayed into mixer, and controls and is completed in 1-3min, obtains finished product.

The beneficial effects of the invention are as follows：Drier is added in the present invention can improve the rate of drying of coating, and addition silane is even Bonding force, weatherability under connection agent raising hygrometric state, improve hard fire colour dispersiveness, improve wearability and resin crosslinks, addition is again Rare earth is closed, the dispersiveness and compatibility for preparing coating is improved to a certain extent, product mix is uniformly also improved coating Anti-flammability, while its fatigue resistance is improved, so as to improve its service life；

Filler is passed through into ball mill grinding powdering, preferably can be filled into the gap of resin binder, or even can turn into A resin binder network structure part, has good supplementary function to the heat-resisting three-dimensional-structure of high-crosslinking-degree；Add and slide in filler Stone flour, skeleton function can be played, reduce the hardness of paint film that manufacturing cost improves coating simultaneously, increased the stabilization of shape of product, increase Add tensile strength, shear strength, flexing intensity, the intensity of pressure, reduce deformation, extension rate, thermal coefficient of expansion, whiteness is high, granularity The features such as uniformly dispersed strong, make ductility and the machinability of coating etc. are excellent to be optimized；Glass squama is added in filler Piece, coating can be divided into many small spaces, the micro-crack in coating, microbubble is mutually split, while inhibit capillary The infiltration of effect；The curing shrinkage rate of glass flake only has the part of other materials to 1/tens, and this is greatly carried The high adhesive force and shock resistance of coating, it is suppressed that coating cracking, the defects of peeling off；

Composite flame-retardant agent is antimony oxide, aluminium hydroxide and ammonium dihydrogen phosphate in mass ratio 3:2:2 ratios mix, it is possible to increase It its anti-flammability, while antimony oxide in composite flame-retardant agent, can effectively strengthen the hardness of paint coatings, and improve the resistance to of coating Mill property；

The present invention has good anticorrosive property, weatherability, wear-resisting, impact resistance and high temperature resistant, and adhesive force is strong；Can extend makes Use the life-span；Preparation method is simple and easy simultaneously.

Embodiment

Embodiment 1

The present embodiment provides a kind of fire resistant anticorrosive hoods of, including base material, descends two sides to be designed with applying on the substrate There is one layer of fire resistant anticorrosive paint, the anticorrosion heat-resisting paint includes following components according to the mass fraction：It is boric acid modified to have Machine silicones：54%；Cadmium is black：28%；Filler：14%；Auxiliary material：2%；Auxiliary agent：2%；

Filler includes following components according to the mass fraction：Glass flake：12 parts, tiny balloon：11 parts, sericite：10 parts, receive Rice silica：25 parts, talcum powder：6 parts, fine-grained alumina：15 parts, molybdenum disulfide：7 parts, manganese dioxide：3 parts, barium sulfate：6 Part, titanium dioxide：10 parts；

Auxiliary material is compound rare-earth, and described compound rare-earth includes following component by weight percentage：Y：16%, Sc：13%, Gd： 10%, Sm：19%, Pr：8%, surplus La；

Auxiliary agent includes following components according to the mass fraction：Dispersant：12 parts, toughener：9 parts, defoamer：4 parts, curing agent：17 Part, composite flame-retardant agent：6 parts, thickener：10 parts, silane coupler：22 parts；Drier：3 parts；

Dispersant is hydrophobic modified carboxylic acid sodium salt；Toughener is methyl methacrylate-butadiene-styrene terpolymer Thing；Defoamer is polysiloxane defoaming agent；Curing agent is phenol aldehyde modified amine；Composite flame-retardant agent is antimony oxide, aluminium hydroxide Or ammonium dihydrogen phosphate in mass ratio 3:2:2 ratios mix；Thickener is hydroxypropyl methyl cellulose；Silane coupler is KH550； Drier is dibutyl tin laurate.

The present embodiment provides a kind of preparation method of hood fire resistant anticorrosive paint, including following specific step Suddenly：

Step（1）：Prepare boric acid modified organic siliconresin：Boric acid and silicones are chosen as reactant, boric acid and silicones Mass ratio is 8.6:1, water consumption is 45% of water consumption needed for silicones complete hydrolysis, and polymerisation is carried out at 82 DEG C, is reacted Time is 4.5h, and be then heated 4.5h at 180 DEG C, had both obtained boric acid modified organic siliconresin；

Step（2）：It is prepared by filler：Glass flake, tiny balloon, sericite, nano silicon and talcum powder are mixed and added Into reacting furnace, temperature is increased to 520 DEG C, 4h is incubated, is then air-cooled to room temperature, is put into ball mill and grinds, crosses 90 mesh sieves, Powders A is obtained, fine-grained alumina, molybdenum disulfide, manganese dioxide, barium sulfate and titanium dioxide are then added to reacting furnace again In, temperature rises to 630 DEG C, is incubated 4h, is then cooled down, and is combined using water cooling with air cooling during cooling, first uses water cooling with 16 DEG C/s cooldown rate is cooled to 420 DEG C of formation alloys, 330 DEG C are then air-cooled to, then use water cooling with 12 DEG C/s cooldown rate Water cooling to room temperature, then ball mill is ground, and is crossed 90 mesh sieves, is obtained powder B, and powders A and powder B then are pressed into 3 again:1.4 Ratio carry out proportioning mixing be sent into ball mill in be milled, by temperature setting at 350 DEG C, stir 12 hours, cross 180 mesh sieves；It is standby With；

Step（3）：It is prepared by auxiliary material：First Y, Sc, Gd, Sm, Pr and La are put into reacting furnace, temperature is increased to 780 DEG C, insulation 4 hours, room temperature is then cooled to 12 DEG C/s, is then placed in ball mill and crushes, cross 180 mesh sieves, it is standby；

Step（4）：Boric acid modified organic siliconresin, hard fire colour, toughener and defoamer are put into dispersion cylinder respectively, opened Open agitator to be slowly stirred, mixing speed is 350 turns/min, stirs 23min, standby；

Step（5）：By step（2）, step（3）And step（4）Mixing be put into mixer, using 230 r/min mixing speeds as, 3.5h is stirred, then adds composite flame-retardant agent, continues to stir 23min, mixing speed 95r/min, waits after being sufficiently mixed uniformly Silane coupler and curing agent are added in mixer, high-speed stirred 13min, mixing speed are under high shear 370r/min, thickener is eventually adding, with 220 r/min, thickener is sprayed into thickener in mixer using spray-on process, and is controlled System is completed in 3min, obtains finished product.

End properties data obtained by the embodiment 1 of table 1

Other three pieces of test plate (panel)s are individually positioned in three kinds of different mixed acid of concentration, three kinds of acid concentrations are respectively nitration mixture 85%+ water 15%th, nitration mixture 70%+ water 30%, nitration mixture 40%+ water 60%, the nitration mixture is by 48% sulfuric acid, 32% hydrochloric acid, 15% nitric acid, 5% high violent acid Four kinds mix, and by 30d observation, about 13 or so, bubble occurs in test plate (panel) surface；Test plate (panel) after immersion is taken out to it Performance test is carried out, it is as a result as follows：

Performance data after the pickling of finished product obtained by the embodiment 1 of table 2

Test performance	Project	Unit	Numerical value/effect
				Mechanical performance	Adhesive force	Mpa	4.2
Flexility	Elongation	%	1.7

Other three pieces of test plate (panel)s are individually positioned in the protected against explosion constant temperature bellows through mixing up, temperature be respectively set to 200 DEG C, 400 DEG C and 500 DEG C, then pass through 10d observation to test plate (panel) through supercooling, its surface does not change；By by high-temperature baking Test plate (panel) is taken out carries out performance test to it, as a result as follows：

Performance data of the finished product after high temperature obtained by the embodiment 1 of table 3

Embodiment 2

The present embodiment provides a kind of fire resistant anticorrosive hood, including base material, descends two sides to be designed with applying on the substrate There is one layer of fire resistant anticorrosive paint, the anticorrosion heat-resisting paint includes following components according to the mass fraction：It is boric acid modified to have Machine silicones：53%；Ferromanganese is black：27%；Filler：15%；Auxiliary material：2%；Auxiliary agent：3%；

Filler includes following components according to the mass fraction：Glass flake：13 parts, tiny balloon：15 parts, sericite：12 parts, receive Rice silica：22 parts, talcum powder：7 parts, fine-grained alumina：18 parts, molybdenum disulfide：6 parts, manganese dioxide：4 parts, barium sulfate：5 Part, titanium dioxide：11 parts；

Auxiliary material is compound rare-earth, and described compound rare-earth includes following component by weight percentage：Y：17%, Sc：15%, Gd：9%, Sm：17%, Pr：9%, surplus La；

Auxiliary agent includes following components according to the mass fraction：Dispersant：15 parts, toughener：11 parts, defoamer：5 parts, curing agent：19 Part, composite flame-retardant agent：7 parts, thickener：11 parts, silane coupler：23 parts；Drier：4 parts；

Dispersant is hydrophobic modified carboxylic acid sodium salt；Toughener is acrylonitrile-butadiene-styrene copolymer；Defoamer is poly- Silicone antifoam agent；Curing agent is diethylenetriamine；Composite flame-retardant agent is that antimony oxide, aluminium hydroxide or ammonium dihydrogen phosphate are pressed Mass ratio 3:2:2 ratios mix；Thickener is hydroxypropyl methyl cellulose；Silane coupler is KH560；Drier is two bays Sour dibutyl tin.

The present embodiment provides a kind of preparation method of hood fire resistant anticorrosive paint, including following specific step Suddenly：

Step（1）：Prepare boric acid modified organic siliconresin：Boric acid and silicones are chosen as reactant, boric acid and silicones Mass ratio is 8.6:1, water consumption is 45% of water consumption needed for silicones complete hydrolysis, and polymerisation is carried out at 85 DEG C, is reacted Time is 4h, and be then heated 4h at 195 DEG C, had both obtained boric acid modified organic siliconresin；

Step（2）：It is prepared by filler：Glass flake, tiny balloon, sericite, nano silicon and talcum powder are mixed and added Into reacting furnace, temperature is increased to 540 DEG C, 3h is incubated, is then air-cooled to room temperature, is put into ball mill and grinds, crosses 90 mesh sieves, Powders A is obtained, fine-grained alumina, molybdenum disulfide, manganese dioxide, barium sulfate and titanium dioxide are then added to reacting furnace again In, temperature rises to 650 DEG C, is incubated 3.5h, is then cooled down, and is combined using water cooling with air cooling during cooling, first use water cooling with 20 DEG C/s cooldown rate is cooled to 400 DEG C of formation alloys, is then air-cooled to 300 DEG C, then uses water cooling with 15 DEG C/s cooling speed Rate water cooling to room temperature, then ball mill is ground, and is crossed 90 mesh sieves, is obtained powder B, and powders A and powder B then are pressed into 3 again: 1.4 ratio be milled in proportioning mixing feeding ball mill, by temperature setting at 330 DEG C, stirs 13 hours, crosses 200 mesh sieves； It is standby；

Step（3）：It is prepared by auxiliary material：First Y, Sc, Gd, Sm, Pr and La are put into reacting furnace, temperature is increased to 795 DEG C, insulation 3.5 hours, room temperature is then cooled to 15 DEG C/s, is then placed in ball mill and crushes, cross 200 mesh sieves, it is standby；

Step（4）：Boric acid modified organic siliconresin, hard fire colour, toughener and defoamer are put into dispersion cylinder respectively, opened Open agitator to be slowly stirred, mixing speed 400r/min, stir 20min, it is standby；

Step（5）：By step（2）, step（3）And step（4）Mixing be put into mixer, using 260 r/min mixing speeds as, 3h is stirred, then adds composite flame-retardant agent, continues to stir 20min, mixing speed 100r/min, waiting will after being sufficiently mixed uniformly Silane coupler and curing agent are added in mixer, high-speed stirred 11min, mixing speed 380r/ under high shear Min, thickener is eventually adding, with 230 r/min, thickener is sprayed into thickener in mixer using spray-on process, and is controlled Completed in 2min, obtain finished product.

End properties data obtained by the embodiment 2 of table 1

Other three pieces of test plate (panel)s are individually positioned in three kinds of different mixed acid of concentration, three kinds of acid concentrations are respectively nitration mixture 85%+ water 15%th, nitration mixture 70%+ water 30%, nitration mixture 40%+ water 60%, the nitration mixture is by 48% sulfuric acid, 32% hydrochloric acid, 15% nitric acid, 5% high violent acid Four kinds mix, and by 30d observation, about 13 or so, bubble occurs in test plate (panel) surface；Test plate (panel) after immersion is taken out to it Performance test is carried out, it is as a result as follows：

Performance data after the pickling of finished product obtained by the embodiment 1 of table 2

Test performance	Project	Unit	Numerical value/effect
				Mechanical performance	Adhesive force	Mpa	4.7
Flexility	Elongation	%	2.1

Other three pieces of test plate (panel)s are individually positioned in the protected against explosion constant temperature bellows through mixing up, temperature be respectively set to 200 DEG C, 400 DEG C and 500 DEG C, then pass through 10d observation to test plate (panel) through supercooling, its surface does not change；By by high-temperature baking Test plate (panel) is taken out carries out performance test to it, as a result as follows：

Performance data of the finished product after high temperature obtained by the embodiment 2 of table 3

In addition to the implementation, the present invention can also have other embodiment.It is all to be formed using equivalent substitution or equivalent transformation Technical scheme, all fall within the protection domain of application claims.

Claims (5)

1. a kind of fire resistant anticorrosive hood, including base material, it is characterised in that descend two sides to be designed with applying on the substrate There is one layer of fire resistant anticorrosive paint, the anticorrosion heat-resisting paint includes following components according to the mass fraction：

Boric acid modified organic siliconresin：45-55%；

Hard fire colour：20-30%；

Filler：10-15%；

Auxiliary material：1-2%；

Auxiliary agent：2%-4%；

The hard fire colour be ferromanganese is black, titanium dioxide, iron oxide red, carbon black, barium sulfate or cadmium it is black in one kind；

The filler includes following components according to the mass fraction：Glass flake：9-13 parts, tiny balloon：10-15 parts, thin,tough silk cloud It is female：10-15 parts, nano silicon：20-35 parts, talcum powder：6-8 parts, fine-grained alumina：15-20 parts, molybdenum disulfide：5-10 Part, manganese dioxide：3-5 parts, barium sulfate：5-8 parts, titanium dioxide：10-12 parts；

Described auxiliary material is compound rare-earth, and described compound rare-earth includes following component by weight percentage： Y：15-18%, Sc： 13-15%, Gd：8-11%, Sm：15-22%, Pr：6-9%, surplus La；

The auxiliary agent includes following components according to the mass fraction：Dispersant：10-15 parts, toughener：8-11 parts, defoamer：2-6 Part, curing agent：15-22 parts, composite flame-retardant agent：5-8 parts, thickener：8-12 parts, silane coupler：17-25 parts；Drier：3- 5 parts；

The dispersant is hydrophobic modified carboxylic acid sodium salt or one kind or its mixture in ammonium salt；

The toughener is methyl methacrylate-butadiene-styrene copolymer or acrylonitrile-butadiene-benzene second It is a kind of in alkene copolymer；

The defoamer is polysiloxane defoaming agent；

Described curing agent is one kind in diethylenetriamine, phenolsulfonic acid, DMP-30/ polyamide 6s 50 or phenol aldehyde modified amine；

The composite flame-retardant agent is one or more of in antimony oxide, aluminium hydroxide or ammonium dihydrogen phosphate；

Described thickener is one kind in diatomite, sodium bentonite, hydroxypropyl methyl cellulose or polyvinyl alcohol；

The silane coupler is a kind of in KH550 or KH560；

The drier is dibutyl tin laurate.

2. fire resistant anticorrosive hood according to claim 1, it is characterised in that the glass flake is by 80 mesh glass Glass scale and 40 mesh glass flakes in mass ratio 3：2 ratio mixing.

3. fire resistant anticorrosive hood according to claim 1, it is characterised in that the composite flame-retardant agent is three oxygen Change two antimony, aluminium hydroxide and ammonium dihydrogen phosphate in mass ratio 3:2:2 ratios mix.

4. fire resistant anticorrosive hood according to claim 1, it is characterised in that the hard fire colour cadmium is black；Institute It is hydrophobic modified carboxylic acid sodium salt to state dispersant；The toughener is that methyl methacrylate-butadiene-polystyrene ternary is common Polymers；The phenol aldehyde modified amine of described curing agent；Described thickener is hydroxypropyl methyl cellulose or polyvinyl alcohol；The silane Coupling agent is KH550.

5. according to fire resistant anticorrosive paint preparation side in any described fire resistant anticorrosive hoods of claim 1-4 Method, it is characterised in that comprise the following specific steps that：

Step（1）：Prepare boric acid modified organic siliconresin：Boric acid and silicones are chosen as reactant, boric acid and silicones Mass ratio is 8.6:1, water consumption is 45% of water consumption needed for silicones complete hydrolysis, and polymerisation is carried out at 80-90 DEG C, Reaction time is 3-5h, and be then heated 4-5h at 150-220 DEG C, had both obtained boric acid modified organic siliconresin；

Step（2）：It is prepared by filler：Glass flake, tiny balloon, sericite, nano silicon and talcum powder are mixed and added Into reacting furnace, temperature is increased to 500-550 DEG C, 3-5h is incubated, is then air-cooled to room temperature, is put into ball mill and grinds, mistake 90 mesh sieves, powders A is obtained, be then again added to fine-grained alumina, molybdenum disulfide, manganese dioxide, barium sulfate and titanium dioxide In reacting furnace, temperature rises to 600-680 DEG C, is incubated 3-5h, is then cooled down, and is combined using water cooling with air cooling during cooling, elder generation Use water cooling to be cooled to 400-460 DEG C of formation alloy with 15-20 DEG C/s cooldown rate, be then air-cooled to 300-350 DEG C, then use Water cooling is ground with 10-15 DEG C/s cooldown rate water cooling to room temperature, then ball mill, is crossed 90 mesh sieves, is obtained powder B, so Powders A and powder B are pressed 3 again afterwards:1.4 ratio be milled in proportioning mixing feeding ball mill, by temperature setting in 300- 380 DEG C, 12-14 hours are stirred, cross 150-200 mesh sieves；It is standby；

Step（3）：It is prepared by auxiliary material：First Y, Sc, Gd, Sm, Pr and La are put into reacting furnace, temperature is increased to 750-820 DEG C, 3-5 hours are incubated, room temperature is then cooled to 10-15 DEG C/s, is then placed in ball mill and crushes, cross 150-200 mesh sieves, it is standby With；

Step（4）：Boric acid modified organic siliconresin, hard fire colour, toughener and defoamer are put into dispersion cylinder respectively, opened Open agitator to be slowly stirred, mixing speed is that 300-400 turns/min, stirs 20-25min, standby；

Step（5）：By step（2）, step（3）And step（4）Mixing is put into mixer, and speed is stirred with 200-260 r/min Spend and be, stir 3-5h, then add composite flame-retardant agent, continue to stir 20-25min, mixing speed is 90-100 r/min, waits and fills Divide after being well mixed and add silane coupler and curing agent in mixer, the high-speed stirred 10- under high shear 15min, mixing speed 350-380r/min, is eventually adding thickener, and with 200-230 r/min, thickener uses spray-on process Thickener is sprayed into mixer, and controls and is completed in 1-3min, obtains finished product.