文章摘要
Effect of Rubber Processing Aid MT222 on Properties of Rubber Pad Compound
Received:December 24, 2020  Revised:January 16, 2021
DOI：10.12136/j.issn.1000-890X.2021.08.0604
Key Words: rubber processing aid；rubber pad；mixing energy consumption；processing performance；physical property
Author NameAffiliationE-mail
CHEN Chuanzhi* Standards and Metrology Research Institute，China Academy of Railway Sciences Corporation Limited chenchuanzhi@163.com 
QU Meng Standards and Metrology Research Institute，China Academy of Railway Sciences Corporation Limited  
DANG Jia Standards and Metrology Research Institute，China Academy of Railway Sciences Corporation Limited  
WANG Jue Standards and Metrology Research Institute，China Academy of Railway Sciences Corporation Limited  
ZHANG Xiaopei Standards and Metrology Research Institute，China Academy of Railway Sciences Corporation Limited  
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Abstract:
      The effect of rubber processing aid MT222 （MT222 for short ） on the mixing energy consumption，processing performance，physical properties and product appearance qualified rate of the rubber pad compound was studied. The results showed that with the increase of MT222 dosage，the mixing energy consumption and Mooney viscosity of the compound decreased，the scorch time was prolonged，the hardness，tensile strength，retention of tensile strength and retention of elongation at break after aging of the vulcanizates changed little，the elongation at break and working electrical resistance increased gradually，the modulus at 200% and static stiffness increased first and then decreased，the Akron abrasion，ratio of static and dynamic stiffness and compression set decreased first and then increased. In addition，adding MT222 could reduce the appearance failure rate of the rubber pad. The optimum amount of MT222 was 3 phr.
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