Automobile protective device material and preparation process thereof

A protection device and a preparation process technology, which are applied in the field of automobile protection device materials and the preparation process thereof, can solve the problems that it is difficult to meet the requirements of recycling standards and the protection performance is difficult to meet the protection requirements.

Inactive Publication Date: 2017-11-24
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to achieve light weight, it is proposed in the prior art to use thermosetting materials to replace the beam metal material of the protection device in China. However, its protection performance is usually difficult to meet the above protection requirements; Parts must achieve a recycling rate of more than 95%, but it is difficult to meet the above recycling standards when using thermosetting materials

Method used

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  • Automobile protective device material and preparation process thereof
  • Automobile protective device material and preparation process thereof
  • Automobile protective device material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1.1 Product preparation

[0047] 1000g of caprolactam was vacuum dehydrated at 120°C, and the mass ratio of dehydration to caprolactam was controlled to be 200ppm to obtain a dehydrated product; then 5g of HDI and 5g of sodium hydroxide were added to mix, and the temperature was raised to 150°C to obtain a melt with a viscosity of about 0.05pa.s Active material: Lay the glass fiber fabric in the mold, inject the active material into the mold under the injection pressure of 2MPa, fully impregnate the glass fiber at 150°C and polymerize and solidify to obtain a glass fiber reinforced nylon composite beam.

[0048] 1.2 Mechanical performance test

[0049] The physical and mechanical properties of the obtained composite beam were tested, and the results showed that the tensile strength was greater than 650MPa, the flexural strength was greater than 620MPa, and the flexural modulus was greater than 30GPa.

[0050] 1.3 Protective application test

[0051] The obtained compo...

Embodiment 2

[0055] 1.1 Product preparation

[0056] Vacuum dehydrate 1000g caprolactam at 120°C, control the mass ratio of the dehydration amount to caprolactam to 150ppm, and obtain the dehydrated product; then add 5g MDI and 5g sodium hydroxide to mix, heat up to 180°C, and obtain a melt with a viscosity of about 0.05pa.s Active material: mix and impregnate carbon fiber fabric and active material at 180°C and 3MPa, then pass the carbon fiber impregnated with active material through a mold with a specific cavity at a traction speed of 2m / min, extrude excess material, and the material in the mold Polymerize and solidify to obtain a carbon fiber reinforced nylon composite beam.

[0057] 1.2 Mechanical performance test

[0058] The physical and mechanical properties of the obtained composite beam were tested, and the results showed that the tensile strength was greater than 850MPa, the flexural strength was greater than 1250MPa, and the flexural modulus was greater than 120GPa.

[0059] 1...

Embodiment 3

[0064] 1.1 Product preparation

[0065] Vacuum dehydrate 1000g caprolactam at 120°C, control the mass ratio of dehydration to caprolactam to 200ppm, and obtain the dehydrated product; then add 5g TDI and 5g sodium methoxide to mix, and heat up to 150°C to obtain a melting activity with a viscosity of about 0.05pa.s Materials: Lay the glass fiber fabric in the mold, inject the active material into the mold under the injection pressure of 2MPa, fully impregnate the glass fiber at 150°C and polymerize and solidify to obtain a glass fiber reinforced nylon composite beam.

[0066] 1.2 Mechanical performance test

[0067] The physical and mechanical properties of the obtained composite beam were tested, and the results showed that the tensile strength was greater than 650MPa, the flexural strength was greater than 620MPa, and the flexural modulus was greater than 30GPa.

[0068] 1.3 Protective application test

[0069] The obtained composite beam is installed on the support to obt...

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Abstract

The invention provides an automobile protective device material and a preparation process thereof. The automobile protective device material provided by the invention is formed by the following raw materials in parts by weight: 400 to 4000 parts of reinforced fiber, 1000 parts of caprolactam, 0.001 to 10 parts of an activating agent and 0.002 to 10 parts of a catalyst, wherein the activating agent is isocyanate and/or imide derivatives; and the catalyst is selected from one or more of sodium hydroxide, sodium methoxide, potassium methoxide, potassium ethoxide, sodium ethoxide, caprolactam, caprolactam magnesium bromide, caprolactam magnesium chloride, double caprolactam magnesium, sodium hydride, potassium hydride, potassium hydroxide and a Grignard reagent. The protective device material provided by the invention has the protective property capable of meeting the protection requirement on the basis of realizing light weight, and also has high reusability after being wasted. The preparation process provided by the invention is simple and practical, thereby facilitating large-scale production.

Description

technical field [0001] The invention relates to the technical field of automobile materials, in particular to an automobile protective device material and a preparation process thereof. Background technique [0002] In recent years, the increase in automobile production has exacerbated problems in energy, environment, and safety. For this reason, the national standard for the automobile field has been formally proposed, stipulating that by 2020, the fuel consumption of automobiles will be strictly limited to 5.0L / 100 kilometers. In this situation, the realization of green environmental protection, low emission and sustainable development of the automobile industry has become the primary issue faced by the automobile industry, and lightweight is an effective method and means to achieve the above goals. research hotspots in the field. [0003] For safety reasons, automobiles are equipped with front, rear, left and right protective devices. The protective devices generally inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/16C08K7/14C08K7/06C08L77/02
CPCC08G69/16C08K7/06C08K7/14C08L77/02
Inventor 张伟刘爱学郑梯和杨海洋李旭武黄安民
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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