重载实心橡胶轮胎的材料研究及结构设计

发布时间：2018-05-03 03:01

本文选题：实心轮胎 + 天然橡胶　；参考：《北京化工大学》2015年硕士论文

【摘要】：作为众多轮胎品种中的重要分支,实心轮胎在工程建设、物流运输等领域有着广泛的应用。本课题以橡胶材料不同配合体系的对比研究工作为基础,重点探究应用于动态条件下轮胎橡胶制品的材料组成-结构-性能间关系。与此同时,基于重载荷条件下实心橡胶轮胎的应用环境,对实心橡胶胎体进行分层式结构设计,新型的多层橡胶复合结构胎体能够同时满足实心轮胎多种性能要求。在优化及确定制备工艺条件后,分别探究适用于各胎体层的橡胶材料组成,确定了具有不同性能特点的配方体系。本文所述工作包含以下两个方面：1.以天然橡胶为基体,分别探究了补强填充体系、硫化交联体系、老化防护体系、软化增塑体系对橡胶各项基本性能的影响。以不同用量的炭黑和白炭黑填充天然橡胶,考察填料类型和用量对补强效果的影响。探究四种常用硫化体系对硫化胶性能的影响差异。对比不同防老剂的老化防护效果,着重考察了稀土防老剂相比于普通防老剂的作用优势。对比了几种常用增塑剂在等量填充条件下对天然橡胶性能的影响。2.从实心橡胶轮胎的多层橡胶复合结构设计出发,探究实验室条件下制备多层橡胶复合胶轮的工艺条件,结果表明：在逐层预硫化定型工艺中,最佳的预硫化时间为t90-3min；P型芳纶纤维的加入可以较大程度提高橡胶的模量。通过反复试验与优化,分别得到了制备低生热橡胶材料和高强度橡胶材料的配方体系。制备出的三层橡胶复合胶轮相比于单层胶轮具有更低的滚动温升,基于此方式制备的实心橡胶轮胎在理论上也具有更优异的综合性能。
[Abstract]:As an important branch of many tire varieties, solid tire has been widely used in engineering construction, logistics transportation and other fields. Based on the comparative study of rubber materials, the relationship between material composition, structure and properties of tire rubber products applied to dynamic conditions is studied. At the same time, based on the application environment of solid rubber tire under heavy load, the layered structure design of solid rubber matrix is carried out. The new multi-layer rubber compound structure matrix can meet the multiple performance requirements of solid tire at the same time. After optimizing and determining the preparation process conditions, the composition of rubber materials suitable for each matrix layer was explored, and the formulation system with different properties was determined. The work described in this paper consists of the following two aspects: 1. The effects of reinforcing and filling system, curing crosslinking system, aging protection system and softening plasticizing system on the basic properties of rubber were studied. Natural rubber was filled with different amounts of carbon black and silica to investigate the effect of filler type and amount on reinforcing effect. The effects of four common vulcanization systems on the properties of vulcanizate were investigated. The effects of different antioxidants on aging protection were compared, and the advantages of rare earth antioxidants compared with common antioxidants were investigated. The effects of several common plasticizers on the properties of natural rubber under the same filling conditions were compared. Based on the design of multi-layer rubber compound structure of solid rubber tire, the technological conditions of preparing multi-layer rubber compound rubber wheel under laboratory conditions are explored. The results show that: in the process of pre-vulcanization, The best prevulcanization time is t 90 3 min P aramid fiber can greatly improve the modulus of rubber. Through repeated experiments and optimization, the formulation system of preparing low thermal rubber and high strength rubber was obtained respectively. Compared with the single-layer rubber wheel, the three-layer rubber composite tire has lower rolling temperature rise, and the solid rubber tire based on this method also has better comprehensive performance in theory.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ336.1

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