摘要
研究ＲＤ－Ｆ活化胶粉及其用量对混炼胶硫化性能、流变性能及硫化胶物理机械性能和动态压缩疲劳性能的影响。并与非活化胶粉进行对比。同时从理论上对影响机理作了初步探讨。试验结果表明，ＲＤ－Ｆ活化胶粉用量在１５份以下时对胶料硫化性能基本无影响；与非活化胶粉相比，可进一步减小胶料挤出膨胀率；随着ＲＤ－Ｆ活化胶粉用量增大。硫化胶拉伸强度、扯断伸长率呈下降趋势，３００％定伸应力、压缩疲劳温升、压缩永久变形呈上升趋势．撕裂强度出现极大值，而且这些性能的变化比未活化胶粉胶料的要小得多。
The influences of RD-F activated rubber crumb and its loading level on the curingcharacteristics and rheological properties of the compound,as well as the physical properties anddynamic compression fatigue property of its vulcanizate were investigated by using the non-activated rubber crumb as the control. The affection mechanism was preliminary discussed in theory.The test results showed that the curing charateristics of the compound with rubber crumb up tofo phr was by and large not influenced;the die swell decreased further when compared with thenon--activated rubber crumb compound;the tensile strength and elongation at break of the vulcanizate decreased,the modulus at 300% .the temperature rise of compression fatigue and the compression set increased,and the tear strength reached maximum,as the loading level of RD--F activated rubber crumb increased;and the changes of the properties were much smaller than those ofthe vulcanizate with non-activated rubber crumb.
出处
《橡胶工业》
CAS
北大核心
1996年第9期529-535,共7页
China Rubber Industry
关键词
胶粉
活化
硫化性
橡胶
混炼胶
填料
rubber curmb, activation, curing characteristics, rheological properties, physicalproperties
