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1 目前的使用现状详见表1,其中大致分为车辆用、轨道用、结构用及电气用橡胶和弹性体。 2 对改性材料的要求就上述各种使用例而言,人们对材料的改性提出了以下几个问题: (1)物性方面:对载重性、耐高速性及耐久性的提高;对防振橡胶来说就是减小弹簧减振系数,延长使用寿命; (2)使用方面:存在使用极限难以判断(老化程度的无损检测法和使用寿命预测法等都未建立),材料的使用寿命不明确;
Table 1 shows the current status of the use, which is broadly divided into vehicles and rail, structural and electrical rubber and elastomer. 2 pairs of modified materials requirements For the above examples of use, the people of the material modification posed the following questions: (1) Physical aspects: the load-bearing, high speed and durability improvements; Vibration rubber is to reduce the spring damping coefficient, to extend the service life; (2) the use of: there is the use of the limit is difficult to judge (aging degree of nondestructive testing and life expectancy are not established, etc.), the service life of materials clear;