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Characterization of non-asbestos friction materials.

机译：非石棉摩擦材料的特性。

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摘要

Several non-asbestos friction materials related issues, such as the effect of compression molding pressure, binder resin-fiber interaction, thermal stabilities of the binder resin, and friction particles have been studied. Measurements of flexural strength, flexural modulus, friction, wear and fade properties were made. When the molding pressure was controlled properly, maximum flexural properties and minimum wear rate can be obtained. The coefficients of friction and the fade properties were independent of the molding pressure used. The modulus of the Lapinus fiber-phenolic resin friction materials varied with the addition of different amounts of fiber. The volumetric wear rate and coefficients of friction strongly depended on the amount of fiber used in the friction material. Scanning electron microscope (SEM) technique revealed that this dependence was related to the changes in the wear mechanisms.;The thermal stabilities of organic components play an essential role in the performance of organic friction materials. Friction particles greatly affect the modulus, friction, fade and wear rate of the friction materials. By using proper amounts of friction particles, it is possible to improve the friction and wear properties without adversely affecting the fade properties. The thermal stabilities of the cashewnut shell liquid (CNSL) based phenolic resin can be improved effectively by adding small amounts of additives. The variation in the fade properties can be correlated to the changes in the thermal properties of the binder resin.
机译：研究了与非石棉摩擦材料相关的一些问题，例如压缩成型压力的影响，粘合剂树脂与纤维的相互作用，粘合剂树脂的热稳定性以及摩擦颗粒。测量了弯曲强度，弯曲模量，摩擦，磨损和褪色性能。当适当地控制成型压力时，可以获得最大的弯曲性能和最小的磨损率。摩擦系数和褪色特性与所使用的成型压力无关。 Lapinus纤维-酚醛树脂摩擦材料的模量随添加不同量的纤维而变化。体积磨损率和摩擦系数在很大程度上取决于摩擦材料中使用的纤维量。扫描电子显微镜（SEM）技术表明这种依赖性与磨损机理的变化有关。有机组分的热稳定性在有机摩擦材料的性能中起着至关重要的作用。摩擦颗粒会极大地影响摩擦材料的模量，摩擦，褪色和磨损率。通过使用适量的摩擦颗粒，可以改善摩擦和磨损性能而不会不利地影响褪色性能。通过添加少量添加剂，可以有效地改善基于腰果壳液（CNSL）的酚醛树脂的热稳定性。褪色性质的变化可以与粘合剂树脂的热性质的变化相关。

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  • 作者

    Dong, Feng.;

  • 作者单位

    University of Missouri - Rolla.;

  • 授予单位 University of Missouri - Rolla.;
  • 学科 Chemistry Polymer.;Engineering Materials Science.
  • 学位 Ph.D.
  • 年度 1996
  • 页码 119 p.
  • 总页数 119
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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