文章摘要
Study on Oxygen-free Past Vulcanization of Rubber
Received:April 13, 2018  Revised:April 13, 2018
DOI：10.12136/j.issn.1000-890X.2019.07.0537
Key Words: oxygen-free past vulcanization；oxygen past vulcanization；NBR；EPDM；mass loss；physical property
Author NameAffiliationE-mail
LIANG Mingsong* Xiamen Elastec Corp bradzhou@163.com 
HE Cong Xiamen Elastec Corp  
YANG Dawei Xiamen Elastec Corp  
WANG Li Xiamen Elastec Corp  
ZHENG Tianlai Xiamen Elastec Corp  
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Abstract:
      Nitrile butadiene rubber（NBR） and ethylene-propylene-diene rubber（EPDM）with sulfur curing system and peroxide curing system were vulcanized by past vulcanization with or without oxygen，and the physical properties of vulcanizates were compared.The results showed that，past vulcanization at appropriate temperature and time could improve the physical properties of vulcanizates to a certain extent，and NBR vulcanizate was more effective than EPDM vulcanizate，as well as sulfur curing system vulcanizate than peroxide curing system vulcanizate.There was no significant difference in physical properties of vulcanizates curing by past vulcanization with or without oxygen.The mass loss of vulcanizate curing by past vulcanization using nitrogen convection mold method was mainly due to the volatilization of plasticizer，which affected the physical properties of vulcanizates to a certain extent.
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