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High wear-resistant and cold-resistant toughened nylon composite material

A nylon composite material, cold-resistant and toughening technology, which is applied in the field of high-wear-resistant, cold-resistant and toughened nylon composite materials to achieve the effects of good mechanical properties and low temperature resistance, broad market application prospects and low cost.

Active Publication Date: 2011-05-11
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At home and abroad, the research on toughening nylon to improve its low-temperature resistance is increasingly in-depth, but there are few literature reports on the research on the wear resistance of nylon alloys. In order to ensure the reliability of nylon in applications with relative motion, It is very necessary to study the abrasion resistance of toughened nylon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The high wear-resistant and cold-resistant toughened nylon composite material of the present embodiment, its composition and the weight percent of each composition are as follows:

[0028] Nylon resin 91.5%

[0029] Toughener 2%

[0030] Anti-wear agent 5%

[0031] Processing aid 1.5%

[0032] The nylon resin is nylon 66 (PA66), the toughening agent is maleic anhydride grafted polyolefin elastomer POE, the anti-wear agent is polytetrafluoroethylene micropowder, and the processing aid is copper salt.

[0033] The preparation process of the high wear-resistant and cold-resistant toughened nylon composite material is as follows:

[0034] A) Nylon resin, toughening agent, anti-wear agent and processing aid are added in the high mixer according to the proportion, and mixed evenly at room temperature;

[0035] B) Use a twin-screw extruder to carry out extrusion granulation. The process conditions for extrusion granulation are: the temperature of the first zone is 240°C, t...

Embodiment 2

[0037] The high wear-resistant and cold-resistant toughened nylon composite material of the present embodiment, its composition and the weight percent of each composition are as follows:

[0038] Nylon resin 76.5%

[0039] Toughener 6%

[0040] Anti-wear agent 15%

[0041] Processing aid 1.5%

[0042] The nylon resin is nylon 66 (PA66), the toughening agent is maleic anhydride grafted polyolefin elastomer POE, the anti-wear agent is polytetrafluoroethylene micropowder, and the processing aid is copper salt.

[0043] The preparation process of the high wear-resistant and cold-resistant toughened nylon composite material in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0045] The high wear-resistant and cold-resistant toughened nylon composite material of the present embodiment, its composition and the weight percent of each composition are as follows:

[0046] Nylon resin 74.5%

[0047] Toughener 9%

[0048] Anti-wear agent 15%

[0049] Processing aid 1.5%

[0050] The nylon resin is nylon 66 (PA66), the toughening agent is maleic anhydride grafted polyolefin elastomer POE, the anti-wear agent is polytetrafluoroethylene micropowder, and the processing aid is copper salt.

[0051] The preparation process of the high wear-resistant and cold-resistant toughened nylon composite material in this embodiment is the same as that in Embodiment 1.

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PUM

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Abstract

The invention discloses a high wear-resistant and cold-resistant toughened nylon composite material, which comprises the following components in percentage by weight: 69.5 to 95 percent of nylon resin, 2 to 9 percent of toughening agent, 0.5 to 20 percent of wear-resisting agent and 1 to 2 percent of processing aid, wherein the toughening agent is maleic anhydride grafted polymer, and the wear-resisting agent is molybdenum disulfide or polytetrafluoroethylene micropowder. The product has higher wear resistance and better mechanical properties and low-temperature resistance, can be used for preparing relatively moving parts such as wearing plates and centre plates in the industries such as railway locomotives and automobiles, and can greatly improve the working stability of the parts and prolong the service life of the parts; in addition, the preparation process for the product is simple and low in cost and meets the requirement of industrial production; therefore, the high wear-resistant and cold-resistant toughened nylon composite material has wide market application prospect.

Description

technical field [0001] The invention relates to a high wear-resistant, cold-resistant and toughened nylon composite material that can be used to prepare parts with relative motion, and belongs to the technical field of modified nylon composite materials. Background technique [0002] Although nylon resin has excellent comprehensive properties such as high mechanical strength, heat resistance, self-lubricating property, excellent barrier performance and chemical corrosion resistance, it can be widely used in the fields of machinery manufacturing, electronic appliances and transportation, but Pure nylon also has obvious disadvantages, such as: high water absorption, poor dimensional stability of the product; poor low temperature performance, which restricts its use in low temperature environments; although it has certain self-lubricating properties, its friction Coefficients do not meet the requirements of use. In order to meet the needs of industrial development, in recent y...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L77/06C08K3/30C08L27/18
Inventor 丁正亚冯德才张永苏妤
Owner SHANGHAI KINGFA SCI & TECH
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