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NBR/Nylon 66 Alloy

A technology of nitrile rubber and nylon, which is applied in the field of mechanically blended polymer materials, can solve problems such as thermal decomposition of nitrile rubber, and achieve the effect of high cold resistance and high oil resistance

Active Publication Date: 2016-08-24
SHENYANG KEYA TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the threat of thermal decomposition of nitrile rubber due to the uncontrollable high temperature generated during blending is a technical key that needs to be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Because there are many types of nitrile rubber, the mass ratio of nylon 66 is even more numerous. The following only selects three types of nitrile 18, nitrile 26, and nitrile 40. The mass ratio of nylon 66 is selected to be 70 / 30, 80 / 20, 90 / 10 three blending ratios are combined with other additives, and the production of nitrile rubber / nylon 66 alloy is carried out according to the following process steps: a. Blending: blend each material according to the above formula; b. Powder High material mixing: 3 parts by mass of stabilizer, 6.5 parts by mass of compatibilizer, and 0.8 parts by mass of antioxidant are mixed on a domestic GRH-200 high-mixer (called mixture w); c. Rubber granulation : respectively put the mixture w and the nitrile rubber of different models into the rubber granulation production line according to the proportioning ratio through the step b gained (the production line is fed intermittently by the kneader, is sent into the granulator for continuous f...

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PUM

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Abstract

The invention discloses a nitrile rubber / nylon 66 alloy, belongs to mechanical commixing high polymer materials, and particularly discloses a high polymer material prepared from nylon 66 modified nitrile rubber. The nylon 66 with a high melting point and outstanding oil resistance is specifically adopted to modify nitrile rubber, so that the high polymer material with outstanding double characteristics of high oil resistance and high cold resistance can be prepared. Due to automatic control of commixing process parameters, stable continuous industrial production of the nylon 66 modified nitrile rubber high polymer material is ensured, and a novel raw material is provided for the rubber industry. Reference can be provided for commixing modification of unitary, binary and ternary nylon and rubber.

Description

technical field [0001] The invention belongs to the mechanical blending polymer material, especially the polymer material modified with nylon 66 and nitrile rubber. Background technique [0002] Nitrile rubber (NBR) has become the first choice for oil-resistant rubber products due to its excellent oil resistance, heat resistance and good physical processing properties. With the increase of the combined acrylonitrile content of nitrile rubber, the oil resistance, heat resistance, hardness, constant elongation strength, tensile strength and other properties of the vulcanized rubber are enhanced, but the cold resistance, elasticity and compression set performance are deteriorated. Nylon (PA) is a general-purpose engineering plastic with excellent comprehensive properties. Over the years, people have carried out various explorations and studies on the blending of nylon and nitrile rubber in order to obtain comprehensive performance or a modified material with more prominent cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L77/06
CPCC08L9/02C08L77/06
Inventor 李陈浩洋李力辉李纯仁
Owner SHENYANG KEYA TECH DEV