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A kind of polyamide material with high friction coefficient and its preparation method and application

A high friction coefficient, polyamide technology, applied in the field of wear-resistant materials, can solve the problems of small friction damping of side bearing wear plates, unfavorable promotion, increased damping and energy dissipation capacity, etc.

Active Publication Date: 2021-06-22
JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, semi-crystalline polyamide PA6 is more and more widely used in rail transit, automobile, electrical and other fields. However, these fields also have high requirements for the friction coefficient of materials. Existing polyamide materials meet the requirements of wear resistance. Under the premise that the coefficient of dynamic friction is less than 0.2, the frictional damping of side bearing wear plates used on trains using such materials is very small, and it often takes longer to reduce energy consumption or other damping devices to increase damping and energy consumption Capability, its cost and structure size are very large and complex, which is not conducive to promotion

Method used

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  • A kind of polyamide material with high friction coefficient and its preparation method and application
  • A kind of polyamide material with high friction coefficient and its preparation method and application
  • A kind of polyamide material with high friction coefficient and its preparation method and application

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Effect test

Embodiment 1

[0035] Embodiment 1: Preparation of high friction coefficient polyamide material

[0036] Raw materials: see Table 1

[0037] Preparation method: Add PA6 resin, coated inorganic filler, toughener, antioxidant and lubricant into a high-speed mixer for stirring

[0038] The mixture obtained above is granulated through a co-rotating intermeshing twin-screw extruder to prepare a polyamide material with a high coefficient of friction.

[0039] The obtained high friction coefficient polyamide material was injection molded into a flat plate, and the basic mechanical properties were measured by proofing. The static friction coefficient was tested according to the ISO8295 standard, as shown in Table 1.

Embodiment 2

[0040] Embodiment 2: Preparation of high friction coefficient polyamide material

[0041] Raw materials: see Table 1

[0042] Preparation method: with embodiment 1

[0043] The obtained high friction coefficient polyamide material was injection molded into a flat plate, and the basic mechanical properties were measured by proofing. The static friction coefficient was tested according to the ISO8295 standard, as shown in Table 1.

Embodiment 3

[0044] Embodiment 3: Preparation of high friction coefficient polyamide material

[0045] Raw materials: see Table 1

[0046] Preparation method: with embodiment 1

[0047] The obtained high friction coefficient polyamide material was injection molded into a flat plate, and the basic mechanical properties were measured by proofing. The static friction coefficient was tested according to the ISO8295 standard, as shown in Table 1.

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Abstract

The invention discloses a polyamide material with high friction coefficient, its preparation method and application. It contains 60%-85% polyamide resin by weight, 5%-15% coated inorganic filler, 5%-25% toughening agent, 0.1%-0.2% silane coupling agent; 0.1%-0.5% antioxidant agent, 0.5%‑0.8% lubricant. The polyamide material with high friction coefficient has the characteristics of good wear resistance, high dynamic friction coefficient and excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of wear-resistant materials, in particular to a polyamide material with high friction coefficient and its preparation method and application. Background technique [0002] Polyamide (PA) is one of the top five engineering plastics with the largest output, the most varieties and the widest uses. Polyamide has high mechanical strength, high heat distortion temperature, good wear resistance, good oil resistance, good chemical resistance, excellent electrical insulation performance, and good self-extinguishing property. Polyamides are widely used in rail transit, automobile industry, electronic and electrical industry, agricultural machinery parts, aerospace and other fields. [0003] At present, semi-crystalline polyamide PA6 is more and more widely used in rail transit, automobile, electrical and other fields. However, these fields also have high requirements for the friction coefficient of materials. Existin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L51/06C08K9/10C08K3/34C08K3/30
Inventor 王腾刘凯申应军
Owner JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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