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Reinforced wear-resistance nylon 66 composite for textile apparatuses and preparation method thereof

A technology for textile equipment and composites, which is applied in the field of material science and achieves the effects of high continuous production efficiency, simple process and simple preparation method.

Active Publication Date: 2011-01-26
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amide group on the molecular chain of nylon 66 is polar, easy to form hydrogen bonds, and has high water absorption, resulting in poor dimensional stability, wear resistance and thermal stability of the product.

Method used

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  • Reinforced wear-resistance nylon 66 composite for textile apparatuses and preparation method thereof
  • Reinforced wear-resistance nylon 66 composite for textile apparatuses and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1~ example 5

[0033] Nylon 66 is DuPont PA66101L with a viscosity of 2.7±0.05.

[0034] The toughening agent is a mixture of maleic anhydride grafted EPDM rubber and maleic anhydride grafted ethylene-octene copolymer.

[0035] The wear-resistant agent is silicone powder LIYSI-100 from Sichuan Chengdu Silike Technology Co., Ltd. and polytetrafluoroethylene powder PTFE from Shanghai Fluoroplastic Research Institute.

[0036] The 1010 phenolic antioxidant and calcium stearate lubricant selected by Qiba Refining Chemicals as processing aids,

[0037] The glass fiber is the alkali-free fiber of Jushi Group, 988A type, and the number of added parts is controlled by adding the number of glass fiber strands.

[0038] Weigh each component according to the ratio in the table below in parts by weight.

[0039]

[0040]

[0041] Put the weighed material into the high-speed mixer and mix it for 120~180 seconds at the speed of 600r / min, then add it to the twin-screw extruder for mixing, and add the...

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Abstract

The invention provides a reinforced wear-resistance nylon 66 composite for textile apparatuses and a preparation method thereof. The composite material is prepared by mixing components including 100 parts of nylon 66, 1 to 15 parts of flexibilizer, 1 to 10 parts of anti-wear agent, 0.5 to 3 parts of processing assistant, 15 to 100 parts of glass fibers and the like and by processing the mixture and glass fibers by a twin-screw melt blending extrusion process. The composite of the invention has high anti-wear performance and high mechanical performance and is widely used in production of weaving spindles. In the invention, the composite is prepared by twin-screw extrusion, the method is simple in process and can perform continuous high-efficiency production, and the product quality is stable.

Description

[0001] Technical field: [0002] The invention relates to an enhanced wear-resistant nylon 66 compound and a preparation method thereof. The compound is mainly used for producing textile equipment parts and belongs to the field of material science. [0003] Background technique: [0004] Nylon 66 is a widely used engineering plastic, which is formed by polycondensation of hexamethylenediamine and adipic acid. It has excellent mechanical properties, such as high strength, high modulus, high hardness, etc. After adding glass fiber reinforcement, the heat distortion temperature can reach 260°C (load 0.45MPa), and it also shows high creep resistance, durability Grinding etc. However, the amide group on the molecular chain of nylon 66 has polarity, is easy to form hydrogen bonds, and has high water absorption, resulting in poor dimensional stability, wear resistance and thermal stability of the product. Especially when the material is used to produce textile equipment parts, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/06C08L83/04C08L27/18C08K13/06C08K7/14C08K5/098
Inventor 张志军刘爱学王文志潘燕子
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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