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CN102766325A - Polyurethane composite material and preparation method thereof - Google Patents

Polyurethane composite material and preparation method thereof Download PDF

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Publication number
CN102766325A
CN102766325A CN2012102361537A CN201210236153A CN102766325A CN 102766325 A CN102766325 A CN 102766325A CN 2012102361537 A CN2012102361537 A CN 2012102361537A CN 201210236153 A CN201210236153 A CN 201210236153A CN 102766325 A CN102766325 A CN 102766325A
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composite material
polyurethane
polyurethane composite
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邓一军
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Dongguan Situoda Optoelectronics Co ltd
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Dongguan Situoda Optoelectronics Co ltd
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Abstract

本发明涉及一种聚氨基甲酸酯复合材料及其制备方法，属于高分子材料领域。本发明由如下组分组成：聚氨基甲酸酯40%-48%，阻燃剂3%-8%，填充剂45%-54%，热稳定剂0.5%-1%，固化剂1%-2%，光屏蔽剂0.05%-0.5%，润滑剂0.5%-1.5%；本发明方法首先将各配方均匀混合，再经成型工艺制成成品，得到聚氨基甲酸酯复合材料。本发明制备的聚氨基甲酸酯复合材料具有安全性好、耐候性好、成本低廉、阻燃性高、吸水率低、保温和无毒等优异性能，广泛应用于LED灯具外壳及其他保温材料领域。The invention relates to a polyurethane composite material and a preparation method thereof, belonging to the field of polymer materials. The present invention consists of the following components: polyurethane 40%-48%, flame retardant 3%-8%, filler 45%-54%, heat stabilizer 0.5%-1%, curing agent 1%- 2%, light shielding agent 0.05%-0.5%, lubricant 0.5%-1.5%; the method of the present invention first mixes each formula uniformly, and then makes a finished product through a molding process to obtain a polyurethane composite material. The polyurethane composite material prepared by the invention has excellent properties such as good safety, good weather resistance, low cost, high flame retardancy, low water absorption, heat preservation and non-toxicity, and is widely used in LED lamp shells and other heat preservation materials field.

Description

A kind of polyurethane(s) matrix material and preparation method thereof
Technical field
The present invention relates to polymeric material field, especially relate to a kind of polyurethane(s) matrix material and preparation method thereof.
Background technology
Nervous along with global energy, energy-saving and emission-reduction are paid attention to by national governments day by day, to a kind of demand of substitute energy become more and more urgent.In recent years, the LED lighting engineering constantly develops, and the demand of LED lampshade constantly promotes, and has promoted the development in LED lampshade market, and performance demands is also improved constantly.But existing general on the market LED lamp outer casing adopts aluminium, stainless steel and other metal materials, and metallic substance has the cost costliness, is prone to get rusty, and does not hinder heat, weak points such as cost recovery height.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide that a kind of security is good, with low cost, high flame retardant, water-intake rate are low, good weatherability, insulation and nontoxic polyurethane(s) matrix material, it is widely used in the LED lamp outer casing.
For solving the problems of the technologies described above, the technical scheme that the present invention taked is:
A kind of polyurethane(s) matrix material is characterized in that, is made up of following weight percentage:
Figure BDA00001862427600021
Further, said polyurethane(s) is the solvent borne polyurethane(s) of thermoset engineering plastics.
Further, said fire retardant is that one or both are composite in organic fire-retardant and the inorganic combustion inhibitor; Said organic fire-retardant is SULPHOSUCCINIC ACID ESTER, it is composite to contain in halophosphate and the Organohalogen compounds one or both, and said inorganic combustion inhibitor is that in Antimony Trioxide: 99.5Min, white lake, hydrated aluminum oxide and other metallic compound one or both are composite.
Further, said weighting agent is that in inorganic filler and the organic filler one or both are composite.
Further, said inorganic filler is that in metal powder, MOX, siliceous, silicate, carbonate, carbonaceous, the useless ash material of various slag and factory one or both are composite; Said siliceous WHITE CARBON BLACK, silica sand and the zeyssatite of comprising, said silicate comprises mica, talcum, potter's clay, asbestos, spun glass and glass microballon, said carbonate comprises light calcium carbonate, water-ground limestone and Wingdale;
Further, said organic filler is that in fibrous material, synthon, the anisotropic sheet material of different shape, the anisotropic fibrous material of different shape and the short fiber material one or both are composite; Said fibrous material comprises the silk of wood powder, shell powder, velveteen, jute, flax and animality, and said synthon comprise Zantrel, vinylon, nylon, FM and thomel.
Further, said thermo-stabilizer is that one or both are composite in lead salts, metallic soap class, organic tin, organic epoxy compounds, organo-antimony compound and the rare-earth stabilizer;
Further, said lead salts is mineral acid and organic acid lead salt and the base lead salt that has an alkali; Said metallic soap class is the divalent metal salt of lipid acid, and said lipid acid comprises LAURIC ACID 99 MIN, Triple Pressed Stearic Acid; Said organic tin is the pink salt with saturated or unsaturated organic acid, mercaptan or the thiosulfates of two alkyl, and general formula is RaSnY4-a, a=2 wherein, and Y is with oxygen or sulphur atom and tin atom bonded organic group; It is said that epoxy compounds is arranged is epoxidized oil.
Further, said solidifying agent is for composite with in amine, anhydrides, amides, imidazoles and the boron trifluoride complex one or both; Said amine comprises in Diethylenetriaminee (DETA), triethylenetetramine, DIMAPA, hexamethylenetetramine and the mphenylenediamine; Said anhydrides comprises Tetra hydro Phthalic anhydride, MALEIC ANHYDRIDE and pyromellitic acid dianhydride; Said amides comprises Versamid, and said imidazoles comprises 2-Methylimidazole, 2-ethyl-4-methylimidazole and 2-phenylimidazole.
Further, said photomask agent is that in carbon black, zinc oxide, white titanium pigment, the lithopone pigment class filler one or both are composite; Said lubricant is that in Triple Pressed Stearic Acid, Metallic stearates class and the metallic soap of stearic acid class one or both are composite.
The preparation method of above-mentioned polyurethane(s) matrix material is characterized in that, comprises the steps:
The first step: with electronic scale by weight percentage ratio take by weighing various starting material;
Second step: the polyurethane(s) in will filling a prescription, inorganic combustion inhibitor, weighting agent high-speed stirring in stirrer was mixed 5-10 minute, dosed thermo-stabilizer after waiting to stir again successively, photomask agent, and lubricant behind the solidifying agent, continued to mix 2-4 minute;
The 3rd step: the mixing liquid that obtains in the step 2 is taken out, make finished product through moulding process.
Further, moulding process described in the step 3 comprises pouring forming technology, technology laminated into type and extruding shaping technique.
Compared with prior art, the present invention has following beneficial effect: the present invention is a body material with polyurethane(s) (PU) matrix material, adds prescriptions such as inorganic combustion inhibitor, lime powder and talcum powder simultaneously and is made into the LED lamp outer casing.The LED shell of made has following advantage:
1, safe, with low cost, water-intake rate is low, and insulation is nontoxic;
2, flame retardant effect reaches the UL94-V0 level fully, and when fire takes place, does not produce deleterious prussic acid gas;
3, dose inorganic combustion inhibitor at body material, thermo-stabilizer, weighting agent, behind the inorganic salt, the LED lamp housing of made is in intensity, and ductility is heat insulation, waterproof, shockproof all have a good effect, and molten point reaches more than 1000 ℃, very strong heat-insulating property;
4, good weatherability has increased the range of application of LED shell, also can be applicable to building thermal insulation material, furniture material, finishing material, electrical lighting material, expressway flooring and sealing material etc.
Embodiment
Instance of the present invention is can not limit the present invention to explanation of the present invention, in implication suitable with the present invention and any change and the adjustment in the scope, all should think within the scope of the invention.
Below in conjunction with embodiment the present invention is further specified.
Embodiment 1, preparation polyurethane(s) comprise following raw materials according:
Figure BDA00001862427600041
The preferred aqueous polyurethane of PU resin in the prescription, aqueous polyurethane (PU) can be selected the 80UD of BAYER company for use, the D-16 of BASF AG, the outer oil-in-water type aqueous polyurethane (PU) of the W2901H of WITTCOL company or anionic.The preferred white lake of this embodiment inorganic combustion inhibitor, the preferred lime powder of weighting agent, the preferred lead sulfate tribasic of thermo-stabilizer, the preferred white titanium pigment of said photomask agent, the preferred calcium stearate of lubricant, the preferred 2-ethyl-4-methylimidazole of solidifying agent.
Concrete preparation method is following:
The first step: with electronic scale by weight percentage ratio take by weighing various starting material;
Second step: 41 parts of polyurethane(s) in will filling a prescription; 4 parts of white lakes, 52.45 parts of lime powders high-speed stirring in stirrer was mixed 5-10 minute, added 0.55 part of lead sulfate tribasic after waiting to stir again successively; 0.1 part white titanium pigment; 0.7 part calcium stearate behind 1.2 parts of 2-ethyl-4-methylimidazoles, continued to mix 2-4 minute;
The reaction equation of this reaction is:
-NH-CO-NH-[CH 2]n-NH-CO-NH-+Mg(OH) 2+2CaCO 3===HO-NH-CO-NH-[CH 2]n-NH-CO-NH-OH+MgCO 3+CaCO 3；
The 3rd step: the mixing liquid that obtains in the said step 2 is taken out, be poured in the epoxy resin mould type die, under room temperature environment, with manual work or the said epoxy resin mould 20-30 of machine vibration minute;
The 4th step: open the epoxy resin mould type die, remove the complete goods of curing molding in the mould.
Said step 3 moulding process comprises pouring forming technology, technology laminated into type and extruding shaping technique.
Said pouring technology is formula rate weighing and mixing, is poured into mould then, by the Recipe requirement, adopts room temperature or hot setting moulding, also can adopt vibrating casting technology.
Said laminating technology is spun glass (cloth) or thomel (cloth) enhanced epoxy resin mould, when solidifying without pressure, at change fiber reinforced material and being coated with layer by layer with mixture of epoxy resins of model nexine, is called contact technology one on top of another; As carrying out adding to depress, can increase content of glass fiber during curing, claim the pressure level compression technology.
Said extruding shaping technique is the mixture of short glass fiber enhancing and resin, can be in-molded at easy metal, and extrusion molding.The preferred pouring technology of this embodiment moulding process, it is simple, and production technique is few, the machinery and equipment less investment.
Embodiment 2, preparation polyurethane(s) comprise following raw materials according:
Figure BDA00001862427600051
Concrete preparation method is following:
The first step: with electronic scale by weight percentage ratio take by weighing various starting material;
Second step: 42 parts of polyurethane(s) in will filling a prescription; 4.5 part white lake, 50.5 parts of lime powders high-speed stirring in stirrer was mixed 5-10 minute, added 0.6 part of lead sulfate tribasic after waiting to stir again successively; 0.2 part white titanium pigment; 0.8 part calcium stearate behind 1.4 parts of 2-ethyl-4-methylimidazoles, continued to mix 2-4 minute;
The 3rd step: the mixing liquid that obtains in the said step 2 is taken out, be poured in the epoxy resin mould type die, under room temperature environment, with manual work or the said epoxy resin mould 20-30 of machine vibration minute;
The 4th step: open the epoxy resin mould type die, remove the complete goods of curing molding in the mould.
Embodiment 3, preparation polyurethane(s) comprise following raw materials according:
Figure BDA00001862427600052
Figure BDA00001862427600061
Concrete preparation method is following:
The first step: with electronic scale by weight percentage ratio take by weighing various starting material;
Second step: 43 parts of polyurethane(s) in will filling a prescription; 5 parts of white lakes, 48.55 parts of lime powders high-speed stirring in stirrer was mixed 5-10 minute, added 0.65 part of lead sulfate tribasic after waiting to stir again successively; 0.3 part white titanium pigment; 0.9 part calcium stearate behind 1.6 parts of 2-ethyl-4-methylimidazoles, continued to mix 2-4 minute;
The 3rd step: the mixing liquid that obtains in the said step 2 is taken out, be poured in the epoxy resin mould type die, under room temperature environment, with manual work or the said epoxy resin mould 20-30 of machine vibration minute;
The 4th step: open the epoxy resin mould type die, remove the complete goods of curing molding in the mould.
Embodiment 4, preparation polyurethane(s) comprise following raw materials according:
Concrete preparation method is following:
The first step: with electronic scale by weight percentage ratio take by weighing various starting material;
Second step: 44 parts of polyurethane(s) in will filling a prescription; 5.5 part white lake, 46.6 parts of lime powders high-speed stirring in stirrer was mixed 5-10 minute, added 0.7 part of lead sulfate tribasic after waiting to stir again successively; 0.4 part white titanium pigment; 1.0 part calcium stearate behind 1.8 parts of 2-ethyl-4-methylimidazoles, continued to mix 2-4 minute;
The 3rd step: the mixing liquid that obtains in the said step 2 is taken out, be poured in the epoxy resin mould type die, under room temperature environment, with manual work or the said epoxy resin mould 20-30 of machine vibration minute;
The 4th step: open the epoxy resin mould type die, remove the complete goods of curing molding in the mould.
Embodiment 5, preparation polyurethane(s) comprise following raw materials according:
Figure BDA00001862427600071
Concrete preparation method is following:
The first step: with electronic scale by weight percentage ratio take by weighing various starting material;
Second step: 45 parts of polyurethane(s) in will filling a prescription; 6 parts of white lakes, 44.6 parts of lime powders high-speed stirring in stirrer was mixed 5-10 minute, added 0.8 part of lead sulfate tribasic after waiting to stir again successively; 0.5 part white titanium pigment; 1.1 part calcium stearate behind 2.0 parts of 2-ethyl-4-methylimidazoles, continued to mix 2-4 minute;
The 3rd step: the mixing liquid that obtains in the said step 2 is taken out, be poured in the epoxy resin mould type die, under room temperature environment, with manual work or the said epoxy resin mould 20-30 of machine vibration minute;
The 4th step: open the epoxy resin mould type die, remove the complete goods of curing molding in the mould.
Table 1 is the formula table of embodiment 1-embodiment 5, and table 2 is the test result and the testing standard of embodiment 1-embodiment 5 performances.
Table 1
Recipe ingredient Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5
Polyurethane(s) (PU) 41% 42% 43% 44% 45%
White lake 4% 4.5% 5% 5.5% 6%
Lime powder 52.45% 50.5% 48.55% 46.6% 44.6%
Lead sulfate tribasic 0.55% 0.6% 0.65% 0.7% 0.8%
White titanium pigment 0.1% 0.2% 0.3% 0.4% 0.5%
Calcium stearate 0.7% 0.8% 0.9% 1.0% 1.1%
2-ethyl-4-methylimidazole 1.2% 1.4% 1.6% 1.8% 2.0%
Table 2
Figure BDA00001862427600081
Table 1-table 2 has provided the prescription of embodiment, the test result and the testing standard of performance; Can find out from The performance test results; Polyurethane(s) matrix material of the present invention has the excellent properties of high flame retardant, resistance to fatigue, weathering resistance and insulation, can satisfy the safe handling of LED light fixture under the severe rugged environment condition.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1.一种聚氨基甲酸酯复合材料，其特征在于，以重量百分数计，由如下组分组成：1. A polyurethane composite material is characterized in that, by weight percentage, it is composed of the following components:
Figure FDA00001862427500011
Figure FDA00001862427500011
 2.根据权利要求1所述的聚氨基甲酸酯复合材料，其特征在于，所述聚氨基甲酸酯为热固性工程塑料的溶剂性聚氨基甲酸酯。2. The polyurethane composite material according to claim 1, wherein the polyurethane is a solvent-based polyurethane of thermosetting engineering plastics. 3.根据权利要求1所述的聚氨基甲酸酯复合材料，其特征在于，所述阻燃剂为有机阻燃剂和无机阻燃剂中一种或两种复配；所述有机阻燃剂为磷酸酯、含卤磷酸酯和有机卤化物中的一种或两种复配，所述无机阻燃剂为三氧化二锑、氢氧化铝、水合氧化铝和其它金属化合物中的一种或两种复配。3. The polyurethane composite material according to claim 1, wherein the flame retardant is one or both of organic flame retardants and inorganic flame retardants; the organic flame retardant The inorganic flame retardant is one or two compounds of phosphoric acid ester, halogen-containing phosphoric acid ester and organic halide, and the inorganic flame retardant is one of antimony trioxide, aluminum hydroxide, hydrated aluminum oxide and other metal compounds or a combination of the two. 4.根据权利要求1所述的聚氨基甲酸酯复合材料，其特征在于，所述填充剂为无机填充剂和有机填充剂中的一种或两种复配；4. polyurethane composite material according to claim 1, is characterized in that, described filler is one or both compoundings in inorganic filler and organic filler; 所述无机填充剂为金属粉、金属氧化物、二氧化硅质、硅酸盐、碳酸盐、碳质、各种矿渣和工厂废灰料中的一种或两种复配；所述二氧化硅质包括白炭黑、石英砂和硅藻土，所述硅酸盐包括云母、滑石、陶土、石棉、玻璃纤维和玻璃微珠，所述碳酸盐包括轻质碳酸钙、重质碳酸钙和石灰石；The inorganic filler is a composite of one or two of metal powder, metal oxide, silica, silicate, carbonate, carbonaceous, various slag and factory waste ash; the two Silica includes white carbon black, quartz sand and diatomaceous earth, the silicate includes mica, talc, clay, asbestos, glass fiber and glass microspheres, and the carbonate includes light calcium carbonate, heavy carbonic acid calcium and limestone; 所述有机填充剂为纤维状物质、合成纤维、各种形状各向异性的片材、各种形状各向异性的纤维状材料和短纤维材料中的一种或两种复配；所述纤维状物质包括木粉、壳粉、棉绒、黄麻、亚麻和动物性的蚕丝，所述合成纤维包括人造丝、维尼龙、尼龙、醋酸纤维素和碳纤维。The organic filler is a compound of one or two of fibrous substances, synthetic fibers, various anisotropic sheets, various anisotropic fibrous materials and short fiber materials; Fiber-like substances include wood flour, husk flour, cotton linters, jute, flax, and animal silk, and synthetic fibers include rayon, vinylon, nylon, cellulose acetate, and carbon fibers. 5.根据权利要求1所述的聚氨基甲酸酯复合材料，其特征在于，所述热稳定剂为铅盐类、金属皂类、有机锡类、有机环氧化合物、有机锑化合物和稀土稳定剂中一种或两种复配；5. polyurethane composite material according to claim 1, is characterized in that, described thermal stabilizer is lead salt, metal soap, organotin, organic epoxy compound, organic antimony compound and rare earth stabilizer One or two compounding agents; 所述铅盐类为无机酸和有机酸的铅盐以及带有盐基的盐基性铅盐；所述金属皂类为脂肪酸的二价金属盐，所述脂肪酸包括月桂酸、硬脂酸；所述有机锡类为带两个烷基的饱和或不饱和有机酸、硫醇或硫代硫酸酯的锡盐，通式为RaSnY4-a，其中a=2，Y是以氧或硫原子与锡原子结合的有机基团；所述有环氧化合物为环氧化油。The lead salts are lead salts of inorganic acids and organic acids and basic lead salts with a base; the metal soaps are divalent metal salts of fatty acids, and the fatty acids include lauric acid and stearic acid; The organic tins are tin salts of saturated or unsaturated organic acids, mercaptans or thiosulfates with two alkyl groups, the general formula is RaSnY 4-a , where a=2, Y is an oxygen or sulfur atom An organic group combined with a tin atom; the epoxy compound is an epoxidized oil. 6.根据权利要求1所述的聚氨基甲酸酯复合材料，其特征在于，固化剂可用胺类、酸酐类、酰胺类、咪唑类和三氟化硼络合物中的一种或两种复配；所述胺类包括二乙撑三胺、三乙撑四胺、二甲胺基丙胺、六次甲基四胺和间苯二胺中，所述酸酐类包括邻苯二甲酸酐、顺丁烯二酸酐和均苯四酸二酐，所述酰胺类包括低分子聚酰胺，所述咪唑类包括2—甲基咪唑、2-乙基-4-甲基咪唑和2—苯基咪唑。6. The polyurethane composite material according to claim 1, wherein the curing agent can be one or both of amines, acid anhydrides, amides, imidazoles and boron trifluoride complexes Compounding; the amines include diethylenetriamine, triethylenetetramine, dimethylaminopropylamine, hexamethylenetetramine and m-phenylenediamine, and the acid anhydrides include phthalic anhydride, Maleic anhydride and pyromellitic dianhydride, the amides include low-molecular polyamides, and the imidazoles include 2-methylimidazole, 2-ethyl-4-methylimidazole and 2-phenylimidazole . 7.根据权利要求1所述的聚氨基甲酸酯复合材料，其特征在于，所述光屏蔽剂为炭黑、氧化锌、钛白粉、锌钡白颜料类填料中的一种或两种复配。7. The polyurethane composite material according to claim 1, wherein the light shielding agent is one or both of carbon black, zinc oxide, titanium dioxide, and lithopone fillers. match. 8.根据权利要求1所述的聚氨基甲酸酯复合材料，其特征在于，所述润滑剂为硬脂酸、硬脂酸金属盐类和硬脂酸金属皂类中的一种或两种复配。8. polyurethane composite material according to claim 1, is characterized in that, described lubricant is one or both in stearic acid, stearic acid metal salts and stearic acid metal soaps compound. 9.一种制备权利要求1-8任一所述的聚氨基甲酸酯复合材料的方法，其特征在于，包括如下步骤：9. a method for preparing the arbitrary described polyurethane composite material of claim 1-8, is characterized in that, comprises the steps: 第一步：用电子称按重量百分数称取各种原材料；Step 1: Use an electronic scale to weigh various raw materials by weight percentage; 第二步：将配方中的聚氨基甲酸酯，无机阻燃剂，填充剂在搅拌机内高速搅拌混合5-10分钟，待搅拌均匀后再依次填加热稳定剂，光屏蔽剂，润滑剂，固化剂后，继续搅拌混合2-4分钟；Step 2: Stir and mix the polyurethane, inorganic flame retardant and filler in the mixer at high speed for 5-10 minutes. After stirring evenly, add heating stabilizer, light shielding agent and lubricant in sequence. After curing agent, continue to stir and mix for 2-4 minutes; 第三步：将步骤二内得到的混合液体取出，经成型工艺制造成品。The third step: take out the mixed liquid obtained in the second step, and manufacture the finished product through the molding process. 10.根据权利要求9所述的聚氨基甲酸酯复合材料的制备方法，其特征在于，步骤三中所述成型工艺包括浇注成型工艺、层压成型工艺和挤压成型工艺。10. The preparation method of polyurethane composite material according to claim 9, characterized in that, the molding process described in step 3 comprises a pouring molding process, a lamination molding process and an extrusion molding process.
CN2012102361537A 2012-07-07 2012-07-07 Polyurethane composite material and preparation method thereof Pending CN102766325A (en)

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CN109401280A (en) * 2018-10-10 2019-03-01 苏州市雄林新材料科技有限公司 A kind of TPU colorful film and preparation method thereof
CN109880578A (en) * 2019-02-28 2019-06-14 上海富铭密封材料有限公司 A kind of two-component soft thermal polyurethane casting glue and preparation method thereof
CN114716823A (en) * 2022-04-26 2022-07-08 金旸（厦门）新材料科技有限公司 Flame-retardant reinforced bio-based long carbon chain nylon material and preparation method thereof

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CN101177525A (en) * 2006-11-08 2008-05-14 上海昊海化工有限公司 Fibre-reinforced polyurethane modified polyisocyanurate composite material and preparation method thereof
CN101891949A (en) * 2010-08-09 2010-11-24 常州天晟新材料股份有限公司 Halogen free flame retardant liquid and method for preparing flame retardant sponge using same

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CN101177525A (en) * 2006-11-08 2008-05-14 上海昊海化工有限公司 Fibre-reinforced polyurethane modified polyisocyanurate composite material and preparation method thereof
CN101891949A (en) * 2010-08-09 2010-11-24 常州天晟新材料股份有限公司 Halogen free flame retardant liquid and method for preparing flame retardant sponge using same

Cited By (5)

* Cited by examiner, † Cited by third party
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CN104761881A (en) * 2015-03-19 2015-07-08 苏州市景荣科技有限公司 Environmentally-friendly flame retardant polyurethane sole material and preparation method thereof
CN109401280A (en) * 2018-10-10 2019-03-01 苏州市雄林新材料科技有限公司 A kind of TPU colorful film and preparation method thereof
CN109880578A (en) * 2019-02-28 2019-06-14 上海富铭密封材料有限公司 A kind of two-component soft thermal polyurethane casting glue and preparation method thereof
CN114716823A (en) * 2022-04-26 2022-07-08 金旸（厦门）新材料科技有限公司 Flame-retardant reinforced bio-based long carbon chain nylon material and preparation method thereof
CN114716823B (en) * 2022-04-26 2023-01-06 金旸（厦门）新材料科技有限公司 Flame-retardant reinforced bio-based long carbon chain nylon material and preparation method thereof

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Application publication date: 20121107