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Friction materials of polyphenyl ester plastic alloy ultrasonic motor

A plastic alloy and friction material technology, applied in the field of polyphenylene composite materials, can solve problems such as poor bonding performance, low hardness, and insufficient thermal conductivity

Inactive Publication Date: 2006-01-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, it is blended with polytetrafluoroethylene to form a plastic alloy, which not only retains a series of characteristics of polyphenylene and polytetrafluoroethylene, but also complements in performance, and overcomes the low hardness and thermal conductivity of polytetrafluoroethylene-based ultrasonic motor friction materials. Insufficient and poor bonding performance disadvantages

Method used

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specific Embodiment approach 1

[0004] Embodiment 1: This embodiment is made by mixing polyphenylene and polytetrafluoroethylene, in terms of mass percentage: 5-20% polytetrafluoroethylene, and the balance is polyphenylene.

specific Embodiment approach 2

[0005] Specific Embodiment 2: This embodiment is made by mixing polyphenylene and polytetrafluoroethylene, in terms of mass percentage: 7-15% polytetrafluoroethylene, and the balance is polyphenylene.

specific Embodiment approach 3

[0006] Specific Embodiment Three: This embodiment is made by mixing polyphenylene and polytetrafluoroethylene, in terms of mass percentage: polytetrafluoroethylene is 10%, and the balance is polyphenylene.

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Abstract

A plastic alloy as friction materials for supersonic motor is a filler-modified polyphenyl ester. It consists of polyphenyl ester as basic body 80 - 95%, which has excellent heat-, wear-, and creep-resistance as well as thermal conductivity, and polytetrafluoroethylene 5 - 20%. The alloy is better than polytetrafluoroethylene based friction materials in hardness, thermal conductivity and binding performance, and has larger torque, higher speed, less noise and abrade, high hardness, and better binding performance.

Description

Technical field: [0001] The invention relates to a polyphenylene ester (scientific name is polyphenylene p-hydroxybenzoate) plastic alloy friction material for an ultrasonic motor, in particular to a polyphenylene ester composite material modified by blending plastics and fillers. Background technique: [0002] At present, the commonly used friction materials for ultrasonic motors mainly include nitrile modified phenolic resin-based friction materials, aromatic polyamide-based friction materials, ultra-high molecular weight polyethylene-based friction materials, and friction coating and bonding friction materials. However, these materials generally have disadvantages such as high wear rate and high noise, and some friction materials have very low stall torque, which cannot fully meet the requirements of ultrasonic motors. The publication date is February 11, 2004, the publication number is CN1473865A, and the patent application titled "PTFE-based ultrasonic motor friction ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08J5/14C08K3/34
Inventor 曲建俊孙凤艳田秀宋宝玉
Owner HARBIN INST OF TECH
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