文章摘要
Influence of Antioxidant Types on Seawater Aging Resistance of CR Compouds and Its Aging Mechanism
Received:January 06, 2025  Revised:January 06, 2025
DOI：10.12136/j.issn.1000-890X.2026.06.0425
Key Words: CR；seawater aging resistance；amine antioxidants；high molecular weight antioxidant；reactive antioxidant
Author NameAffiliationE-mail
LIU Quanzhong North Huajin Chemical Industries Co.，Ltd 1298550450@qq.com 
YAO Xiuchao* North Huajin Chemical Industries Co.，Ltd yaoxiuchao87@163.com 
HAO Chunbo North Huajin Chemical Industries Co.，Ltd  
LI Chunhui North Huajin Chemical Industries Co.，Ltd  
WANG　Chun North Huajin Chemical Industries Co.，Ltd  
JIANG　Cui North Huajin Chemical Industries Co.，Ltd  
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Abstract:
      The influence of antioxidant types on the seawater aging resistance of chloroprene rubber（CR） compounds and its aging mechanism were studied.The results showed that during deep-sea environment immersion（deep-sea aging） process，the antioxidant of CR compound migrated and precipitated ，leading to a rapid decline in the aging resistance of CR compound.The antioxidant in CR compound was essentially eliminated after aging in deep-sea for 3 a.Compared to CR compound prepared with amine antioxidant 4020，the Shore A hardness，tensile strength and elongation at break of CR compound prepared with high molecular weight antioxidants TNPP/TH-1790 blend or high molecular weight antioxidants（TNPP and TH-1790）/reactive antioxidant BZ20 blend increased.The physical properties of CR compound prepared with high molecular weight antioxidants（TNPP and TH-1790）/ reactive antioxidant BZ20 blend were optimal，and the seawater aging resistance was the best.
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