Low-water-absorption toughened polyamide material and preparation method thereof

A technology of tough polyamide and low water absorption, which is applied in the field of toughened polyamide materials with low water absorption and its preparation, can solve the problems of limiting the use range of PA6 and PA66, affecting material performance, and adding more materials, etc. Dimensional stability, low cost, and the effect of increasing compatibility

Active Publication Date: 2020-09-18
重庆科聚孚新材料有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above methods can reduce the water absorption of PA6 and PA66, they face problems such as large amount of fillers and low water absorption materials, limited efficiency, impact on the performance of the entire material, high cost, and color, which limit the scope of use of PA6 and PA66.

Method used

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  • Low-water-absorption toughened polyamide material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] A toughened polyamide material with a low water absorption rate. In parts by weight, the toughened polyamide material with a low water absorption rate comprises the following components: 77 parts of PA6, 10 parts of EPDM-g-MAH, and 10% of methylol content 2 parts of octyl phenolic vulcanization resin, 10 parts of EPDM rubber, 1 part of brominated octyl phenolic vulcanization resin with 11% methylol content and 4.5% bromine content, 100.5 parts of antioxidant H, silicone 0.5 parts, silicone oil 0.03 parts.

Embodiment 2

[0026] A toughened polyamide material with a low water absorption rate. In parts by weight, the toughened polyamide material with a low water absorption rate comprises the following components: 70 parts of PA6, 8 parts of POE-g-MAH, and 10% of methylol content 1 part of octyl phenolic vulcanization resin, 20 parts of EPDM rubber, 1 part of brominated octyl phenolic vulcanization resin with 11% methylol content and 4.5% bromine content, 100.7 parts of antioxidant H, silicone 0.3 parts, 0.04 parts of silicone oil.

Embodiment 3

[0028] A toughened polyamide material with a low water absorption rate. In parts by weight, the toughened polyamide material with a low water absorption rate comprises the following components: 86 parts of PA6, 5 parts of PE-g-MAH, and 10% of methylol content 3 parts of octyl phenolic vulcanization resin, 5.5 parts of EPDM rubber, 0.5 parts of brominated octyl phenolic vulcanization resin with 11% methylol content and 4.5% bromine content, 0.8 parts of antioxidant H100, silicone 0.8 parts, silicone oil 0.05 parts.

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Abstract

The invention relates to a low-water-absorption toughened polyamide material and a preparation method thereof, and belongs to the technical field of high polymer materials. The material comprises polyamide resin, a graft, alkyl phenolic vulcanized resin, ethylene propylene diene monomer, brominated alkyl phenolic vulcanized resin, a thermal stabilizing aid, a processing lubricant and silicone oil.Certain amounts of the ethylene propylene diene monomer and the brominated alkyl phenolic vulcanized resin are added into the polyamide resin, so that the finally prepared polyamide material has higher toughness and strength. Meanwhile, certain amounts of the alkyl phenolic vulcanized resin and the graft are added into the polyamide resin, so that the water absorption rate of the finally preparedpolyamide material can be effectively reduced, the problems that the dimensional stability, the mechanical property, the electrical property and the like become poor due to hygroscopicity are solved,and the polyamide material has the advantages of small addition amount, high efficiency, low cost, no influence on material properties and the like. The preparation method of the material is simple,easy to operate, low in equipment requirement and suitable for expanded production.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a low water absorption toughened polyamide material and a preparation method thereof. Background technique [0002] Polyamide 6 (PA6) and polyamide 66 (PA66) have become one of the most widely used engineering plastics due to their excellent comprehensive properties, and are widely used in automobiles, aerospace, general machinery, electronics, instruments, meters, Household appliances and office equipment and other fields. By adding toughener polymers with different structures, the flexibility, impact resistance, and low temperature resistance of PA6 and PA66 materials can be increased, thereby increasing the application field of polyamide materials, but PA6 and PA66 products are in the later use process. , because the -NHCO- group in the molecular chain has strong polarity, it is easy to form hydrogen bonds with water molecules in the environment, so that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/06C08L61/06C08L23/16C08L61/14C08L83/04C08L77/06
CPCC08L77/02C08L77/06C08L2205/035C08L2205/025C08L2205/02C08L51/06C08L61/06C08L23/16C08L61/14C08L83/04
Inventor 周雷刘小林叶淑英陈健李福顺吕强肖利群苏俊业刘罡胡志钟志强丁学良付莉红杨晓娟
Owner 重庆科聚孚新材料有限责任公司
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