CAJ | 학술논문

比较了不同捏合工艺下热硫化低苯基硅橡胶的压缩永久变形性能。发现捏合时间对低苯基硅橡胶的压缩永久变形性能有显著影响。随着捏合时间的延长，压缩永久变形性能先降后增，当捏合时间达到150 min时，压缩永久变形性能趋于稳定；继续延长捏合时间，压缩永久变形性能变大；随着热空气老化温度的升高，低苯基硅橡胶的压缩永久变形变大，在300℃×12 h条件下压缩永久变形可达100％，基本丧失了回弹能力；随着热空气老化时间的增加，低苯基硅橡胶压缩永久变形变大，在200℃×1200 h、250℃×72 h、300℃×12 h老化后，低苯基硅橡胶的压缩永久变形达到100％，基本丧失了回弹能力。
비교료불동날합공예하열류화저분기규상효적압축영구변형성능。발현날합시간대저분기규상효적압축영구변형성능유현저영향。수착날합시간적연장，압축영구변형성능선강후증，당날합시간체도150 min시，압축영구변형성능추우은정；계속연장날합시간，압축영구변형성능변대；수착열공기노화온도적승고，저분기규상효적압축영구변형변대，재300℃×12 h조건하압축영구변형가체100％，기본상실료회탄능력；수착열공기노화시간적증가，저분기규상효압축영구변형변대，재200℃×1200 h、250℃×72 h、300℃×12 h노화후，저분기규상효적압축영구변형체도100％，기본상실료회탄능력。
The compression sets of high temperature vulcanized low-phenyl silicone rubber in different compression kneading process was compared , and it was found the kneading time has a significant effect on the compression set .As the kneading time increases , the compression set performance first improves and then de-teriorates.When the kneading time reaches 150 min, the rubber ’ s compression set keeps stable .If the kneading time continues to increase , the rubber ’ s compression will increase again .As the air aging tempera-ture rises, the rubber ’ s compression becomes larger .The compression set of the low-phenyl silicone rubber achieves 100%at after aging at 200℃ ×1 200 h, or 250℃ ×72h, or 300℃×12h, loss of resilience.