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High-strength sound-insulation polyurethane urea composite material

A polyurethane urea and composite material technology, applied in the field of polyurethane urea elastomers, can solve the problems of not having both high strength and sound insulation, and the sound insulation function is not perfect, and achieve the effects of improving impact resistance, improving product performance, and reducing product weight.

Active Publication Date: 2021-04-20
山东龙祥新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its sound insulation function is still not perfect enough, and it cannot have the dual effects of high strength and sound insulation

Method used

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  • High-strength sound-insulation polyurethane urea composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The formula composition and preparation process of the high-strength sound-insulating polyurethane urea composite material in this example are as follows:

[0035] (1) Synthesis of component A of high-strength sound-insulating polyurethane urea composite material:

[0036] According to the weight ratio, 50 parts of DL2000 polyoxypropylene diol, 50 parts of PTMG1000 polytetrahydrofuran ether diol, and 90 parts of DL1000 polyoxypropylene diol were put into a reaction kettle protected by nitrogen, and heated to 95 ° C under stirring. Dehydration at -0.1MPa for 7 hours, release the vacuum, lower the temperature to below 50°C, add 150 parts of diphenylmethane diisocyanate MDI-50 polyisocyanate, and react at 90°C for 4 hours. After the reaction, measure the -NCO value to 14%. Material, filter packaging.

[0037] (2) Preparation of component B:

[0038] Weigh the components according to the order of the formula, 30 parts of amino-terminated polyether JeffamineD2000, 20 parts o...

Embodiment 2

[0041] The formula composition and preparation process of the high-strength sound-insulating polyurethane urea composite material in this example are as follows:

[0042] (1) Synthesis of component A of high-strength sound-insulating polyurethane urea composite material:

[0043] According to the weight ratio, put 80 parts of phthalic anhydride polyester diol 450D, 50 parts of DL2000 polyoxypropylene diol, and 80 parts of DL1000 polyoxypropylene diol into a reaction kettle protected by nitrogen, and heat it to 100 ° C under stirring. Dehydrate under vacuum -0.1MPa for 5 hours, remove the vacuum, lower the temperature to below 50°C, add 150 parts of IPDI (isophorone diisocyanate), react at 90°C for 3 hours, after the reaction, measure the -NCO value to 16% and discharge , filter package.

[0044] (2) Preparation of component B:

[0045] Weigh the components according to the order of the formula, 60 parts of amino-terminated polyether JeffamineD2000, 20 parts of polyether poly...

Embodiment 3

[0048] The formula composition and preparation process of the high-strength sound-insulating polyurethane urea composite material in this example are as follows:

[0049] (1) Synthesis of component A of high-strength sound-insulating polyurethane urea composite material:

[0050] According to the weight ratio, 60 parts of phthalic anhydride polyester polyol PD-110LV with a molecular weight of 1000, 50 parts of polyether polyol PTMG1000, and 30 parts of polycarbonate polyol CL1200 were put into the reactor with nitrogen protection, and heated to 95°C~100°C, dehydrate under vacuum -0.1MPa for 6h, remove the vacuum, add 200 parts of XDI ester (xylylene diisocyanate) after cooling down to below 50°C, react at 90°C for 3h, after the reaction, measure -NCO value is 17% and then discharged, filtered and packaged.

[0051] (2) Preparation of component B:

[0052] Weigh each component according to the order of the formula, 20 parts of amino-terminated polyether JeffamineD2000, 30 par...

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Abstract

The invention discloses a high-strength sound-insulation polyurethane urea composite material which is formed by spraying, compounding and molding a component A, a component B and high-strength fibers, wherein the component A is an isocyanate prepolymer prepared from polyether polyol, a first chain extender and polyisocyanate, and the content of -NCO is 15-20%; and the component B is mixture powder of amine-terminated polyether, polyether polyol, polyurethane microspheres, a coupling agent, a second chain extender, a catalyst and a water removal agent. The high-strength fibers comprise one or a mixture of more of alkali-free glass fibers, aramid fibers, nylon fibers and basalt fibers. According to the composite material, combined spraying of reinforcing fibers and a polyurethane urea material is achieved, and the strength of the polyurethane urea composite material is remarkably improved; meanwhile, polyurethane microspheres are adopted for filling polyurethane urea, and the problems that traditional hollow inorganic filler is poor in dispersity and reinforcing effect in the polyurethane urea composite material are solved; meanwhile, the composite material has excellent sound insulation performance.

Description

technical field [0001] The invention relates to the technical field of polyurethane urea elastomers, in particular to a high-strength sound-insulating polyurethane urea composite material. Background technique [0002] As a polymer material, polyurethane urea elastomer has low density and price. The excellent physical and chemical properties of polyurethane urea include extremely high tensile impact strength, flexibility, abrasion resistance, anti-slip, anti-aging, anti-corrosion, etc. . However, its sound insulation function is still not perfect enough, and it cannot have the dual effects of high strength and sound insulation. Contents of the invention [0003] The purpose of the present invention is to provide a high-strength sound-insulating polyurethane urea composite material, which can have both high-strength and sound-insulating functions. [0004] Concrete technical scheme of the present invention is described in detail as follows: [0005] A high-strength sound...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L75/06C08L75/04C08K7/26C08K7/14
Inventor 韩庆国冯国玉王立城李凡凯刘锦春吴祥东
Owner 山东龙祥新材料科技有限公司
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