CN109735179A - A kind of fireproof coating interfacial agents and preparation method thereof - Google Patents
A kind of fireproof coating interfacial agents and preparation method thereof Download PDFInfo
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- CN109735179A CN109735179A CN201910033706.0A CN201910033706A CN109735179A CN 109735179 A CN109735179 A CN 109735179A CN 201910033706 A CN201910033706 A CN 201910033706A CN 109735179 A CN109735179 A CN 109735179A
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Abstract
The invention discloses a kind of fireproof coating interfacial agents and preparation method thereof, are related to the technical field of architectural fireproof paint.Be characterized in that: fireproof coating interfacial agents include the component of following parts by weight: 30-40 parts of perlite；480-520 parts of vermiculite power；180-220 parts of floating bead；400-450 parts of flyash；310-350 parts of precipitated calcium carbonate；280-320 parts of vinyl copolymer emulsion；80-120 parts of polyvinyl alcohol；8-12 parts of wood fibre；2-4 parts of water-based thickener；70-90 parts of talcum powder；900-1100 parts of water.The present invention has the advantages that adhesion strength is high, is less prone to hollowing cracking phenomena.
Description
Technical field
The present invention relates to the technical field of building coating, more specifically, it relates to a kind of fireproof coating interfacial agents and its
Preparation method.
Background technique
Fireproof coating is to reduce by the combustibility of painting material surface for flammable substrates surface, block the fast of fire
Speed sprawling, to improve by a kind of sapecial coating of painting material fire endurance.It is applied to flammable substrates surface, to change material
Expect that surface burning characteristics, retardance fire are spread rapidly；Or it is applied on building element, the spy of the fire endurance to improve component
Kind coating.
A kind of fire-resistant coating for steel structure is disclosed in the Chinese invention patent of Publication No. CN104789068A, it is each to form
Composition quality number are as follows: 30~40 parts of film forming binder, 2~5 parts of base-material of auxiliary, 2~5 parts of combustion adjuvant, 20~30 parts of foaming agent, surely
Determine 5~10 parts of agent, 10~15 parts of function pigments and fillers, 5~10 parts of solvent, 0.5~1 part of dispersing agent agent, 0.5~1 part of defoaming agent agent.
Fireproof coating in above-mentioned patent is directly applied to steel structure surface, the four seasons replace, expose to the sun and rain etc. the temperature difference compared with
Under conditions of big, it may appear that phenomena such as expanding with heat and contract with cold, so as to cause steel member from fireprotection layer under the action of different stress, occur
Hollowing phenomenon causes coating to be easy to peel off.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of fireproof coating interfacial agents, tool
There is adhesion strength height, be less prone to the advantages of hollowing cracking phenomena.
The purpose of the present invention two is to provide a kind of preparation method of fireproof coating interfacial agents, high with adhesion strength,
The advantages of being less prone to hollowing cracking phenomena.
To achieve the above object one, the present invention provides the following technical scheme that
A kind of fireproof coating interfacial agents, the component including following parts by weight:
30-40 parts of perlite；
480-520 parts of vermiculite power；
180-220 parts of floating bead；
400-450 parts of flyash；
310-350 parts of precipitated calcium carbonate；
280-320 parts of vinyl copolymer emulsion；
80-120 parts of polyvinyl alcohol；
8-12 parts of wood fibre；
2-4 parts of water-based thickener；
70-90 parts of talcum powder；
900-1100 parts of water.
By using above-mentioned technical proposal, perlite is with apparent density is light, thermal coefficient is low, chemical stability is good, makes
With the small advantage of wide temperature range, wettability power, and nontoxic, tasteless, fire prevention, sound-absorbing.Vermiculite power has antiacid caustic corrosion performance,
There is preferable anticorrosive effect to sodium carbonate.Vermiculite power also has characteristic porous, light, that fusing point is high, is excellent resistance to fire screen
Hot material.Vermiculite power has good anti-freezing property, -20 DEG C at a temperature of through 40 its capacity of freeze-thaw cycle experiment and intensity not
Become.
Floating bead is different from the particle of irregular shape, and floating bead is easy to roll between each other.This makes using floating bead
System has lower viscosity, preferable mobility, improves the sprayable property of interfacial agents.Floating bead is that a kind of intensity is high, hard
Microballoon, it can enhance hardness, wash-resistant property and the wearability of interfacial agents；Due to the hollow sphere structure of floating bead so that its
Being filled in coating has excellent heat insulation.
As filler, water-based thickener is selected from fiber for adjusting viscosity, water-based thickener for flyash and precipitated calcium carbonate
Plain ether and its derivative, alkali soluble intumescent thickener, polyurethane thickener, any one in inorganic thickening agent.Talcum powder tool
Have lubricity, it is anti-stick, help stream, fire resistance, acid-resisting, insulating properties, fusing point it is high, chemically torpescence, covering power it is good, it is soft,
The excellent Wuli-Shili-Renli system approach such as good luster, strong adsorption force.In coating, talcum powder can play skeleton function as filler,
Reduce the hardness of paint film that manufacturing cost improves interfacial agents simultaneously.It mainly can increase the stabilization of shape of product, increase tensile strength, cut
Shearing stress, flexing intensity, the intensity of pressure reduce deformation, extension rate, thermal expansion coefficient, but most important one characteristic is exactly to slide
Stone has fire resistance, acid-resisting, insulating properties, fusing point height etc..It is modified by talcum powder, the kindling of interfacial agents can be significantly improved
Point makes its ignition point be increased to 300 degrees Celsius or more.
Above-mentioned filler and particle are bonded in one as adhesive by vinyl copolymer emulsion and polyvinyl alcohol
It rises, polyvinyl alcohol also has good film forming, forms the adhesive layer with stronger adhesive strength.
Wood fibre is organic wadding fibrous object that natural reproducible timber is processed by chemical treatment, Mechanical Method
The moisture of internal system is promptly transferred to coating surface and interface, is made by matter due to the capillarity of wood fibre structure
It obtains the uniform moisture distribution inside coating and significantly reduces skinning, and adhesion strength and surface strength are significantly improved, do
It is dry during tension reduction and obviously play the role of cracking resistance.Wood fibre dimensional stability and thermal stability play very well
Thermal-insulating and anti-cracking effect.
Further preferably, the wood fibre passes through surface modification treatment, and wood fibre includes fiber bodies and spray
It is applied to the acid corrosion-resistant coating on fiber bodies surface.
By using above-mentioned technical proposal, due to the pH slant acidity of interfacial agents, wood fibre is organic fiber, so can not
What is avoided will receive the influence of corrosion in acid material, cause the reduction of effect, can be significant after spraying acid corrosion-resistant coating
The acid resistance of wood fibre is improved, adhesive strength and crack resistance are improved.
Further preferably, the acid corrosion-resistant coating includes the component of following parts by weight:
10-50 parts of polytetrahydrofuran diol；
2-8 parts of isocyanates；
0.5-2 parts of dimethyl silicone polymer；
0.5-2 parts of single stearic acid glycerine lipoprotein；
0.1-2 parts of silica；
10-20 parts of dimethylbenzene.
By using above-mentioned technical proposal, polyurethane is generated after polytetrahydrofuran diol and isocyanates reaction, is had
The performances such as outstanding low temperature resistant, water-fast, oil resistant, wear-resisting and resistance to mould.Dimethyl silicone polymer plays the role of small big gun, single stearic
Acid glyceride plays peptizaiton, and silica is filler, and dimethylbenzene is solvent.
Further preferably, the acid corrosion-resistant coating further includes ammonium polyphosphate, and the parts by weight of the ammonium polyphosphate are
6-10 parts.
By using above-mentioned technical proposal, the addition of ammonium polyphosphate is so that acid corrosion-resistant coating has fire protecting performance.
Further preferably, the acid corrosion-resistant coating with a thickness of 20-30 μm.
By using above-mentioned technical proposal, acid corrosion-resistant coating is too thin, and acid-resistant corrosion is too poor, and acid corrosion-resistant coating is too
Thickness, wood fibre do not have cracking resistance effect.
Further preferably, steps are as follows for the surface modification treatment of the wood fibre:
Polytetrahydrofuran diol, isocyanates, dimethyl silicone polymer, single stearic acid glycerine lipoprotein, dioxy are added into container by S1
SiClx, dimethylbenzene, are mixed evenly；
S2 puts into fiber bodies into container, is mixed evenly, and is sent after solidification to broken crusher machine, obtains powder；
S3, screening remove powder and bulky grain, obtain wood fibre.
By using above-mentioned technical proposal, wood fibre improves interfacial agents in capable of being wrapped in by acid corrosion-resistant coating
Adhesive strength and crack resistance.
Further preferably, the S3 is specifically includes the following steps: be placed in freezing processing in -10 DEG C or less environment for powder
10-30min, screening remove powder and bulky grain, obtain wood fibre.
By using above-mentioned technical proposal, the powder of crushing is after fast freezing is handled, on the one hand, acid corrosion-resistant coating
Sharply contraction is Nian Jie with wood fibre surface closer, and on the other hand, under cryogenic, powder surface spikes are partly prior to painting
Layer is internal to become fragile, and during screening, the mutual collision friction of powder removes the burr generated when crushing.
To achieve the above object two, the present invention provides the following technical scheme that
A kind of preparation method of the fireproof coating interfacial agents as described in purpose one, which comprises the following steps:
Step 1 adds water in container, then puts into perlite, vermiculite power, precipitated calcium carbonate, flyash, floating bead, stirring
Uniformly, it is kept stirring during feeding intake；
Step 2 puts into vinyl copolymer emulsion and polyvinyl alcohol into container, stirs evenly；
Step 3 puts into thickener into container, stirs evenly, and discharging obtains fireproof coating interfacial agents.
By using above-mentioned technical proposal, sticky, granular fireproof coating interfacial agents are made, can with map brushing, spraying or
It is bonding with anti-corrosive primer can to significantly improve fireproof coating in steel construction anti-corrosive primer surface, then sprayed fire proofing coating for roller coating
Intensity, and it is less prone to hollowing cracking phenomena.
In conclusion compared with prior art, the invention has the following advantages:
(1) present invention uses vinyl copolymer emulsion and polyvinyl alcohol as adhesive, by above-mentioned filler and particle
Be bonded together, polyvinyl alcohol also has a good film forming, form the adhesive layer with stronger adhesive strength, wood fibre into
One step improves adhesion strength and surface strength, and plays the role of good thermal-insulating and anti-cracking；
It is (2) of the invention by the way that the acid resistance of wood fibre can be significantly improved in wood fibre surface spraying acid corrosion-resistant coating,
Improve adhesive strength and crack resistance.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail.
Embodiment 1: a kind of fireproof coating interfacial agents, each component and its corresponding parts by weight are as shown in table 1, and by such as
Lower step prepares:
Step 1 adds water in container, then puts into perlite, vermiculite power, precipitated calcium carbonate, flyash, floating bead, stirring
Uniformly, it is kept stirring during feeding intake, mixing speed 200rpm；
Step 2 puts into vinyl copolymer emulsion and polyvinyl alcohol into container, stirs 1.5 hours；
Step 3 puts into thickener into container, stirs 10 minutes, and discharging obtains fireproof coating interfacial agents.
Water-based thickener is hydroxypropyl methyl cellulose.
Embodiment 2-5: a kind of fireproof coating interfacial agents, difference from example 1 is that, each component and its corresponding
Parts by weight are as shown in table 1.
Each component and its parts by weight in 1 embodiment 1-5 of table
Embodiment 6: a kind of fireproof coating interfacial agents, difference from example 1 is that, wood fibre by surface it is modified at
Reason, wood fibre includes fiber bodies and the acid corrosion-resistant coating for being sprayed at fiber bodies surface, the thickness of acid corrosion-resistant coating
Degree is 20 μm；
Acid corrosion-resistant coating includes the component of following parts by weight:
10 parts of polytetrahydrofuran diol；
2 parts of isocyanates；
0.5 part of dimethyl silicone polymer；
0.5 part of single stearic acid glycerine lipoprotein；
0.1 part of silica；
10 parts of dimethylbenzene；
Steps are as follows for the surface modification treatment of wood fibre:
Polytetrahydrofuran diol, isocyanates, dimethyl silicone polymer, single stearic acid glycerine lipoprotein, dioxy are added into container by S1
SiClx, dimethylbenzene, are mixed evenly；
S2 puts into fiber bodies into container, is mixed evenly, and is sent after solidification to broken crusher machine, obtains powder；
S3, screening remove powder and bulky grain, obtain wood fibre.
Embodiment 7: a kind of fireproof coating interfacial agents are that acid corrosion-resistant coating includes as follows with the not place of embodiment 6
The component of parts by weight:
30 parts of polytetrahydrofuran diol；
5 parts of isocyanates；
1 part of dimethyl silicone polymer；
1 part of single stearic acid glycerine lipoprotein；
Silica 1 part；
15 parts of dimethylbenzene；
Acid corrosion-resistant coating with a thickness of 25 μm.
Embodiment 8: a kind of fireproof coating interfacial agents are that acid corrosion-resistant coating includes as follows with the not place of embodiment 6
The component of parts by weight:
50 parts of polytetrahydrofuran diol；
8 parts of isocyanates；
2 parts of dimethyl silicone polymer；
2 parts of single stearic acid glycerine lipoprotein；
2 parts of silica；
20 parts of dimethylbenzene；
Acid corrosion-resistant coating with a thickness of 30 μm.
Embodiment 9: a kind of fireproof coating interfacial agents are that acid corrosion-resistant coating further includes gathering with the not place of embodiment 6
Ammonium phosphate, the parts by weight of ammonium polyphosphate are 6 parts.
Embodiment 10: a kind of fireproof coating interfacial agents are that acid corrosion-resistant coating further includes with the not place of embodiment 6
Ammonium polyphosphate, the parts by weight of ammonium polyphosphate are 8 parts.
Embodiment 11: a kind of fireproof coating interfacial agents are that acid corrosion-resistant coating further includes with the not place of embodiment 6
Ammonium polyphosphate, the parts by weight of ammonium polyphosphate are 10 parts.
Embodiment 12: a kind of fireproof coating interfacial agents, with embodiment 6 not place be, S3 specifically includes the following steps:
Powder is placed in freezing processing 10min in -10 DEG C or less environment, is sieved, powder and bulky grain is removed, obtains wood fibre.
Embodiment 13: a kind of fireproof coating interfacial agents, with embodiment 6 not place be, S3 specifically includes the following steps:
Powder is placed in freezing processing 20min in -10 DEG C or less environment, is sieved, powder and bulky grain is removed, obtains wood fibre.
Embodiment 14: a kind of fireproof coating interfacial agents, with embodiment 6 not place be, S3 specifically includes the following steps:
Powder is placed in freezing processing 30min in -10 DEG C or less environment, is sieved, powder and bulky grain is removed, obtains wood fibre.
Comparative example 1: a kind of fireproof coating interfacial agents, difference from example 1 is that, wood fibre is not added.
Comparative example 2: a kind of fireproof coating interfacial agents, difference from example 1 is that, polyvinyl alcohol is not added.
Comparative example 3: a kind of fireproof coating interfacial agents, difference from example 1 is that, vinyl acetate-is not added
Ethylene copolymerization emulsions.
Comparative example 4: a kind of fireproof coating interfacial agents, difference from example 1 is that, wood fibre is not added and gathers
Vinyl alcohol.
Comparative example 5: a kind of fireproof coating interfacial agents, difference from example 1 is that, wood fibre and second are not added
Vinyl acetate-ethylene copolymerization emulsions.
Comparative example 6: a kind of fireproof coating interfacial agents, difference from example 1 is that, wood fibre is not added, gathers
Vinyl alcohol and vinyl copolymer emulsion.
Performance test method: test specimen is made according to GB14907-2002 " fire-resistant coating for steel structure ", difference exists
In: it is sprayed at Q235 steel surface using the fireproof coating interfacial agents in embodiment 1-14 and comparative example 1-6, is sprayed again after dry
Normal steel structure fireproof coating, as test specimen 1-14 and control sample 1-6.The fire-resistant coating for steel structure selected in the present invention
Formula it is as follows: perlite 250kg, vermiculite 150kg, 100 parts of talcum powder, 100 parts of powder of lacquer putty for use on, cement 350kg, 1 part of levelling agent,
It, 1 part of dodecyl sodium sulfate, 5 parts of methylcellulose, will be above-mentioned purchased from the 3306 of Zhejiang Linan Fu Sheng coating additive Co., Ltd
Component is uniformly mixed.
It is sprayed at using the fireproof coating that the embodiment 1 of the Chinese invention patent of Publication No. CN104789068A makes
Q235 steel surface is as control sample 7.
(1) after test specimen production, according to the standard testing test specimen 1 of GB14907-2002 " fire-resistant coating for steel structure "
Other performances.
(2) it after test specimen production, tests the adhesive strength of fire resistant coating, resistance to expose hot, humidity resistance, freeze-thawing resistant circulation
Property.
Test result and analysis: the test result of test specimen 1 is as shown in table 2, test specimen 1-14 and control sample 1-7
The performance test results it is as shown in table 3.It is wooden by table 2 and 3 it is found that the properties of test specimen 1 meet the requirements of the standard
Fiber is after surface modification treatment, and the adhesive strength of test specimen 6-8, resistance to expose hot, humidity resistance, freeze-thawing resistant cyclicity equal
Have and significantly promoted, powder is after freezing processing, the adhesive strength of test specimen 12-14, the resistance to hot, humidity resistance, resistance to of exposing
Frozen-thawed cycled, which has, significantly to be promoted, and the adhesive strength of control sample 4-7 is less than standard requirements, the resistance to exposure of control sample 1-7
Hot, humidity resistance, freeze-thawing resistant cyclicity do not meet standard requirements, illustrate that the present invention is copolymerized using vinyl
Above-mentioned filler and particle are bonded together, polyvinyl alcohol also has good film forming by lotion and polyvinyl alcohol as adhesive
Property, the adhesive layer with stronger adhesive strength is formed, wood fibre further improves adhesion strength and surface strength, Er Qieqi
Good thermal-insulating and anti-cracking effect is arrived；By spraying acid corrosion-resistant coating in wood fibre surface, wooden fibre can be significantly improved
The acid resistance of dimension improves adhesive strength and crack resistance.
The test result of 2 test specimen 1 of table
The performance test results of table 3 test specimen 1-14 and control sample 1-7
| Sample number into spectrum | Adhesion strength/MPa | Hot/the h of resistance to exposure | Humidity resistance/h | Freeze-thawing resistant cyclicity/time |
| Test specimen 1 | 0.20 | 720 | 504 | 15 |
| Test specimen 2 | 0.21 | 720 | 504 | 15 |
| Test specimen 3 | 0.20 | 720 | 505 | 15 |
| Test specimen 4 | 0.20 | 720 | 505 | 15 |
| Test specimen 5 | 0.21 | 720 | 506 | 16 |
| Test specimen 6 | 0.24 | 725 | 510 | 21 |
| Test specimen 7 | 0.24 | 726 | 510 | 21 |
| Test specimen 8 | 0.25 | 728 | 512 | 22 |
| Test specimen 9 | 0.23 | 724 | 509 | 20 |
| Test specimen 10 | 0.23 | 723 | 508 | 20 |
| Test specimen 11 | 0.23 | 724 | 508 | 20 |
| Test specimen 12 | 0.25 | 728 | 511 | 23 |
| Test specimen 13 | 0.25 | 728 | 512 | 23 |
| Test specimen 14 | 0.25 | 728 | 512 | 22 |
| Control sample 1 | 0.06 | It is unqualified | It is unqualified | It is unqualified |
| Control sample 2 | 0.05 | It is unqualified | It is unqualified | It is unqualified |
| Control sample 3 | 0.05 | It is unqualified | It is unqualified | It is unqualified |
| Control sample 4 | 0.03 | It is unqualified | It is unqualified | It is unqualified |
| Control sample 5 | 0.03 | It is unqualified | It is unqualified | It is unqualified |
| Control sample 6 | 0.02 | It is unqualified | It is unqualified | It is unqualified |
| Control sample 7 | 0.03 | It is unqualified | It is unqualified | It is unqualified |
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of fireproof coating interfacial agents, which is characterized in that the component including following parts by weight:
30-40 parts of perlite；
480-520 parts of vermiculite power；
180-220 parts of floating bead；
400-450 parts of flyash；
310-350 parts of precipitated calcium carbonate；
280-320 parts of vinyl copolymer emulsion；
80-120 parts of polyvinyl alcohol；
8-12 parts of wood fibre；
2-4 parts of water-based thickener；
70-90 parts of talcum powder；
900-1100 parts of water.
2. fireproof coating interfacial agents according to claim 1, which is characterized in that the wood fibre by surface it is modified at
Reason, wood fibre includes fiber bodies and the acid corrosion-resistant coating for being sprayed at fiber bodies surface.
3. fireproof coating interfacial agents according to claim 2, which is characterized in that the acid corrosion-resistant coating includes following weight
Measure the component of number:
10-50 parts of polytetrahydrofuran diol；
2-8 parts of isocyanates；
0.5-2 parts of dimethyl silicone polymer；
0.5-2 parts of single stearic acid glycerine lipoprotein；
0.1-2 parts of silica；
10-20 parts of dimethylbenzene.
4. fireproof coating interfacial agents according to claim 2, which is characterized in that the acid corrosion-resistant coating further includes poly- phosphorus
Sour ammonium, the parts by weight of the ammonium polyphosphate are 6-10 parts.
5. fireproof coating interfacial agents according to claim 2, which is characterized in that the acid corrosion-resistant coating with a thickness of
20-30μm。
6. fireproof coating interfacial agents according to claim 2, which is characterized in that the surface modification treatment of the wood fibre
Steps are as follows:
Polytetrahydrofuran diol, isocyanates, dimethyl silicone polymer, single stearic acid glycerine lipoprotein, dioxy are added into container by S1
SiClx, dimethylbenzene, are mixed evenly；
S2 puts into fiber bodies into container, is mixed evenly, and is sent after solidification to broken crusher machine, obtains powder；
S3, screening remove powder and bulky grain, obtain wood fibre.
7. fireproof coating interfacial agents according to claim 6, which is characterized in that the S3 will be specifically includes the following steps: will
Powder is placed in freezing processing 10-30min in -10 DEG C or less environment, and screening removes powder and bulky grain, obtains wood fibre.
8. a kind of preparation method of the fireproof coating interfacial agents as described in any one of claim 1-7, which is characterized in that packet
Include following steps:
Step 1 adds water in container, then puts into perlite, vermiculite power, precipitated calcium carbonate, flyash, floating bead, stirring
Uniformly, it is kept stirring during feeding intake；
Step 2 puts into vinyl copolymer emulsion and polyvinyl alcohol into container, stirs evenly；
Step 3 puts into thickener into container, stirs evenly, and discharging obtains fireproof coating interfacial agents.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160067A (en) * | 1979-05-30 | 1980-12-12 | Showa Electric Wire & Cable Co Ltd | Fireproof composition |
| CN101481579A (en) * | 2008-12-23 | 2009-07-15 | 中国人民解放军总后勤部军需装备研究所 | Waterproof moisture permeable modified polyurethane coating glue and preparation thereof |
| CN105038422A (en) * | 2015-07-14 | 2015-11-11 | 上海森瀚新型材料科技有限公司 | Composite functional type heat insulating coating for building wall |
-
2019
- 2019-01-14 CN CN201910033706.0A patent/CN109735179B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160067A (en) * | 1979-05-30 | 1980-12-12 | Showa Electric Wire & Cable Co Ltd | Fireproof composition |
| CN101481579A (en) * | 2008-12-23 | 2009-07-15 | 中国人民解放军总后勤部军需装备研究所 | Waterproof moisture permeable modified polyurethane coating glue and preparation thereof |
| CN105038422A (en) * | 2015-07-14 | 2015-11-11 | 上海森瀚新型材料科技有限公司 | Composite functional type heat insulating coating for building wall |
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