前言三元乙丙橡胶(EPDM)的需求随其主要用途的汽车产量的增加而得以快速增长,预测今后这一趋势还会继续发展(见图1)。以下,本文对由汽车工业的结构变化、汽车的功能或性能的提高而引起特性要求的变化以及相应的对策进行叙述。图1不同年度EPDM的销售量1最近汽车工业结构的变化随 Preface The demand for EPDM (EPDM) has rapidly increased with the increase in production of vehicles for its major uses, and it is forecasted that this trend will continue in the future (see Figure 1). In the following, this article describes changes in characteristics required by changes in the structure of the automotive industry, improvements in the function or performance of vehicles, and the corresponding countermeasures. Figure 1 EPDM sales in different years 1 The recent changes in the structure of the automotive industry with