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Nylon 6 mineral fiber composite material for automobile engine cover lid and preparation method thereof

A technology for automobile engines and composite materials, which is applied in the field of nylon 6 mineral fiber composite materials and its preparation. It can solve problems such as product warping, affecting product assembly, and glass fiber exposure, and achieves the elimination of glass fiber exposure and good dimensional stability. The effect of improving the performance and mechanical properties

Active Publication Date: 2010-12-15
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, continuous long glass fibers are used to reinforce the engine cover with nylon 6. However, after the long glass fibers are reinforced, the surface of the product is prone to glass fiber exposure, and the glass fiber reinforcement is prone to warping due to internal stress, which affects the product. assembly

Method used

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  • Nylon 6 mineral fiber composite material for automobile engine cover lid and preparation method thereof
  • Nylon 6 mineral fiber composite material for automobile engine cover lid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] formula:

[0031] Nylon 6 resin, relative viscosity 2.4-2.8, 51.8 parts by weight; alkali-free short glass fiber, fiber length 3.5-4.2 mm, diameter 10-15 μm, 20 parts by weight; particle size 10-80 μm, main component is silicon Glass microspheres of acid salt, 20 parts by weight; Maleic anhydride grafted polyethylene, melt flow rate 1.3g / 10min (190 ℃ 2.16kg), 6 parts by weight; Thermal stabilizer is 0.6 parts by weight of cuprous iodide; The coupling agent is silane coupling agent KH550, 0.3 parts by weight; the antioxidant is 1098 antioxidant, 0.3 parts by weight; the lubricant is silicone powder, 1 part by weight.

Embodiment 2

[0033] formula:

[0034] Nylon 6 resin, relative viscosity 2.4-2.8, 60.3 parts by weight; alkali-free short glass fiber, fiber length 3.5-4.2 mm, diameter 10-15 μm, 10 parts by weight; talcum powder with particle size between 10-20 μm , 20 parts by weight; acrylate copolymer, melt flow rate 1.2g / 10min (190 ℃ 2.16kg), 8 parts by weight; thermal stabilizer is 0.4 parts by weight of cuprous iodide; silane coupling agent KH560, 0.2 parts by weight ; 168 antioxidant, 0.3 parts by weight; calcium stearate, 0.8 parts by weight.

Embodiment 3

[0036] formula:

[0037] Nylon 6 resin, relative viscosity 2.4-2.8, 66.7 parts by weight; non-alkali short glass fiber, fiber length is 3.5-4.2mm, diameter is 10-15 μm, 15 parts by weight; particle size is calcium carbonate between 10-20 μm , 15 parts by weight; hydrogenated SBS, melt flow rate 1.4g / 10min (190 ℃ 2.16kg), 2 parts by weight; thermal stabilizer is cuprous iodide 0.3 parts by weight; coupling agent is silane coupling agent KH560, 0.2 parts by weight; the antioxidant is 1098 antioxidant, 0.2 parts by weight; the lubricant is silicone powder, 0.6 parts by weight.

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Abstract

The invention discloses a nylon 6 mineral fiber composite material for an automobile engine cover lid and a preparation method thereof. The composite material is characterized by being mainly prepared from the following components in parts by weight through mixing, extruding and granulating: 50-70 parts of nylon 6 resin, 10-20 parts of glass fiber, 10-20 parts of inorganic mineral, 2-8 parts of compatilizer, 0.3-1 part of heat stabilizer, 0.1-0.3 part of coupling agent, 0.1-0.3 part of antioxidant and 0.3-1 part of lubricant. The composite material has the advantages of high toughness, rigidity, flowability, dimensional stability and heat stability.

Description

technical field [0001] The invention relates to a nylon 6 mineral fiber composite material suitable for automobile engine covers and a preparation method thereof, in particular to an improved material for automobile engine covers with high toughness, high rigidity, dimensional stability and thermal stability. Resistant nylon 6 material. Background technique [0002] Nylon 6 has good mechanical properties, but also has good oil resistance and chemical resistance. Widely used in auto parts, electric tool casings, electronic appliances, etc. [0003] As the largest nylon part in the car, the automobile engine cover has high requirements for its appearance and dimensional stability, and it must also have good thermal stability as the surrounding material of the engine. At present, continuous long glass fibers are used to reinforce the engine cover with nylon 6. However, after the long glass fibers are reinforced, the surface of the product is prone to glass fiber exposure, and...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L51/06C08L33/04C08L53/02C08L23/08C08K13/04C08K7/14C08K7/20C08K3/34C08K3/26B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/9259B29C2948/92885
Inventor 成二国徐亮周勇吴汾
Owner NANJING JULONG SCI&TECH CO LTD
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