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PA6/AES composite material and preparation method thereof

A technology of composite materials and small molecules, which is applied in the field of PA6/AES composite materials and its preparation, can solve the problems of insufficient low-temperature toughness, poor weather resistance, and difficulty in direct use, so as to improve impact performance, weather resistance, and thermal stability. Effect

Active Publication Date: 2019-03-26
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, PA6 / ABS materials have poor weather resistance and insufficient low-temperature toughness, so it is difficult to use them directly in outdoor low-temperature or direct sunlight environments

Method used

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  • PA6/AES composite material and preparation method thereof
  • PA6/AES composite material and preparation method thereof
  • PA6/AES composite material and preparation method thereof

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preparation example Construction

[0040] The present disclosure also provides a preparation method of PA6 / AES composite material, comprising the following steps:

[0041] Step (1): Dry PA6 and compatibilizer at 100°C-120°C for 2-4 hours respectively.

[0042] Step (2): Weigh quantitative PA6, acrylonitrile-styrene copolymer, AES high rubber powder, compatibilizer, small molecule absorbent, antioxidant and lubricant, and mix in a high mixer for 2-5min, The rotating speed is 400-1000rpm to obtain the mixed material.

[0043] Step (3): Send the mixture into a twin-screw extruder, and obtain the PA6 / AES composite material after melting, extrusion, water cooling, air drying and pelletizing.

[0044] Step (3) can specifically be:

[0045] Put the mixture obtained in step (2) into the hopper of a twin-screw extruder and extrude to pelletize. The twin-screw extruder includes seven temperature zones arranged in sequence, and the temperature in one zone is 200-220 ℃, the temperature in the second zone is 250-270 ℃, t...

Embodiment 1

[0049](1) Weigh 64 parts of dried PA6, 18 parts of AES high rubber powder, 15 parts of SAN resin, 3 parts of dried compatibilizer, 0.3 part of zeolite powder, 0.1 part of antioxidant 1098, 0.2 part of antioxidant 627A, 0.2 lubricant PETS were mixed and stirred evenly to obtain a mixture;

[0050] (2) Extrude and granulate the mixture obtained in step (1) to obtain PA6 / AES composite material A1, wherein the temperature in each zone of the twin-screw extruder and the screw speed are respectively: the temperature in the first zone is 205 ° C, and the temperature in the second zone is 205 ° C. 250°C, the temperature of the third zone is 260°C, the temperature of the fourth zone is 260°C, the temperature of the fifth zone is 240°C, the temperature of the sixth zone is 240°C, the temperature of the head is 225°C, and the screw speed is 280r / min.

Embodiment 2

[0052] (1) Weigh 53 parts of dried PA6, 22 parts of AES high rubber powder, 20 parts of SAN resin, 5 parts of dried compatibilizer, 0.3 part of zeolite powder, 0.2 part of antioxidant 1098, 0.2 part of antioxidant 627A, 0.4 parts of lubricant PETS are mixed and stirred evenly to obtain a mixture;

[0053] (2) Extrude and granulate the mixture obtained in step (1) to obtain PA6 / AES composite material A2, wherein the temperature in each zone of the twin-screw extruder and the screw speed are respectively: the temperature in the first zone is 215 ° C, the temperature in the second zone is 260°C, the temperature of the third zone is 260°C, the temperature of the fourth zone is 260°C, the temperature of the fifth zone is 250°C, the temperature of the sixth zone is 250°C, the temperature of the head is 235°C, and the screw speed is 350r / min.

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Abstract

The invention discloses a PA6 / AES composite material and a preparation method thereof. The composite material contains the following components in parts by weight: 40-70 parts of PA6, 15-30 parts of AES high rubber powder, 5-30 parts of an acrylonitrile-styrene copolymer, 3-8 parts of a compatilizer, 0.2-0.6 part of a small molecule absorbent, 0.1-0.5 part of an antioxidant and 0.2-0.5 part of a lubricant. By adding a proper amount of the compatilizer, the wear resistance of the PA6 / AES composite material is improved; the particle size of rubber in the AES high rubber powder is relatively large, and the brakeage energy can be effectively absorbed during impact fracture, so that the impact property of the composite material is improved; and by adding a proper amount of the small molecule absorbent, small molecule substances produced in the processing material can be absorbed, so that the thermal stability of the composite material is improved.

Description

technical field [0001] The invention relates to the field of polymer materials, more specifically, to a PA6 / AES composite material and a preparation method thereof. Background technique [0002] PA6 (polyamide 6) has excellent mechanical strength, wear resistance, self-lubrication and corrosion resistance, and is one of the most important engineering plastics. However, PA6 has problems such as high water absorption, dimensional stability, low temperature and low dry impact, which greatly limit its application in certain fields. In order to expand the scope of application, ABS (acrylonitrile-butadiene-styrene copolymer) and PA6 can be blended to obtain PA6 / ABS composite millet material, which combines the advantages of ABS and PA6. [0003] However, PA6 / ABS materials have poor weather resistance and insufficient low-temperature toughness, so it is difficult to use them directly in outdoor low-temperature or direct sunlight environments. [0004] Therefore, how to provide a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/04C08L25/12C08L35/06C08K13/04C08K7/26
CPCC08L77/02C08L2201/08C08L2205/035C08L2205/08C08L51/04C08L25/12C08L35/06C08K13/04C08K7/26
Inventor 姚其海黄家奇邓俊杰
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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