Special toughened reinforced nylon 66 composite material for automobiles and preparation method thereof

A composite material and nylon technology, applied in the field of toughened and reinforced nylon 66 composite materials for automobiles, can solve the problems of high hygroscopicity, insufficient dimensional stability, low friction coefficient, etc., achieve low cost, light weight, and improve aging resistance Effect

Inactive Publication Date: 2015-11-11
SUZHOU HONGHENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nylon 66 has high fatigue strength and rigidity, good heat resistance, low friction coefficient and good wear resistance, but has high moisture absorption and insufficient dimensional stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of toughened reinforced nylon 66 composite material for automobiles, in parts by weight, comprising the following components:

[0037] Nylon 6640 parts, Nylon 610 parts,

[0038] 2 parts of glass fiber, 0.5 part of hollow glass microsphere,

[0039] 5 parts of bamboo powder, 2 parts of polycrystalline mullite whiskers,

[0040] 3 parts of polylactic acid, 8 parts of POE,

[0041] 1 part of dibutyl maleate, 10 parts of polypropylene,

[0042] 0.1 part of initiator, 0.5 part of antioxidant, 1 part of other additives.

[0043] Its preparation method comprises the following steps:

[0044] (1) Mix butylene maleate, POE, polypropylene, and initiator uniformly in an autoclave, react at 100° C. for 2 hours, and cool to room temperature to obtain a mixture of grafted POE and grafted polypropylene;

[0045] (2) Add nylon 66, nylon 6, glass fiber, hollow glass microspheres, bamboo powder, and polycrystalline mullite whiskers into a high-speed mixer, knead for 5 minute...

Embodiment 2

[0048] A kind of toughened reinforced nylon 66 composite material for automobiles, in parts by weight, comprising the following components:

[0049] Nylon 6650 parts, Nylon 620 parts,

[0050] 8 parts of glass fiber, 2 parts of hollow glass microspheres,

[0051] 10 parts of bamboo powder, 5 parts of polycrystalline mullite whiskers,

[0052] 10 parts of polylactic acid, 12 parts of POE,

[0053] 4 parts of dibutyl maleate, 15 parts of polypropylene,

[0054] 0.5 parts of initiator, 1.5 parts of antioxidant, 2 parts of other additives.

[0055] Its preparation method comprises the following steps:

[0056] (1) Mix butylene maleate, POE, polypropylene, and initiator in an autoclave evenly, react at 200° C. for 6 hours, and cool to room temperature to obtain a mixture of grafted POE and grafted polypropylene;

[0057] (2) Add nylon 66, nylon 6, glass fiber, hollow glass microspheres, bamboo powder, and polycrystalline mullite whiskers into a high-speed mixer, knead for 10 m...

Embodiment 3

[0060] A kind of toughened reinforced nylon 66 composite material for automobiles, in parts by weight, comprising the following components:

[0061] Nylon 6642 parts, Nylon 612 parts,

[0062] 4 parts of glass fiber, 1 part of hollow glass microsphere,

[0063] 6 parts of bamboo powder, 3 parts of polycrystalline mullite whiskers,

[0064] 5 parts of polylactic acid, 9 parts of POE,

[0065] 2 parts of dibutyl maleate, 11 parts of polypropylene,

[0066] 0.2 parts of initiator, 0.7 parts of antioxidant, 1.2 parts of other additives.

[0067] Its preparation method comprises the following steps:

[0068] (1) Mix butylene maleate, POE, polypropylene, and initiator in an autoclave evenly, react at 120° C. for 3 hours, and cool to room temperature to obtain a mixture of grafted POE and grafted polypropylene;

[0069](2) Add nylon 66, nylon 6, glass fiber, hollow glass microspheres, bamboo powder, and polycrystalline mullite whiskers into a high-speed mixer, knead for 6 minute...

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Abstract

The invention discloses a special toughened reinforced nylon 66 composite material for automobiles, which comprises the following components in parts by weight: 40-50 parts of nylon 66, 10-20 parts of nylon 6, 2-8 parts of glass fiber, 0.5-2 parts of hollow glass microsphere, 5-10 parts of bamboo powder, 2-5 parts of polycrystalline mullite whisker, 3-10 parts of polylactic acid, 8-12 parts of POE (polyolefin elastomer), 1-4 parts of dibutyl maleate, 10-15 parts of polypropylene, 0.1-0.5 part of initiator, 0.5-1.5 parts of antioxidant and 1-2 parts of other assistants. The invention also discloses a preparation method of the special toughened reinforced nylon 66 composite material for automobiles. The special nylon composite material for automobiles has the advantages of superhigh impact resistance, high toughness, excellent heat resistance, excellent wear resistance, excellent corrosion resistance, stable size and favorable sound insulation property, and can be widely used for various automobile parts.

Description

Technical field: [0001] The invention relates to the technical field of polymer materials, in particular to a toughened and reinforced nylon 66 composite material for automobiles. Background technique: [0002] Nylon 66 has high fatigue strength and rigidity, good heat resistance, low friction coefficient and good wear resistance, but it has high hygroscopicity and insufficient dimensional stability. It is usually used in wear-resistant and force-bearing transmission parts with medium load, operating temperature <100-120°C, and working under the condition of no lubrication or less lubrication. [0003] With the rapid development of the automobile industry, the market demand for high-strength and high-rigidity nylon is increasing. New reinforcement materials such as inorganic whisker reinforcement and carbon fiber reinforcement nylon will become important varieties, mainly for automotive engine parts, mechanical parts and aviation equipment parts. At present, 80% of nylo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L97/02C08L67/04C08L51/06C08K13/04C08K7/14C08K7/28C08K7/10B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/9258B29C2948/92704C08K2201/003C08K2201/004C08L2201/08C08L2205/025C08L2205/035C08L77/02C08L97/02C08L67/04C08L51/06C08K13/04C08K7/14C08K7/28C08K7/10
Inventor 矫磊
Owner SUZHOU HONGHENG CHEM
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