摘要
以偶氮二甲酰胺为发泡剂、硫磺为交联剂,采用模压发泡制备三元乙丙橡胶(EPDM)发泡材料,并对其进行一定温度和时间的处理。对发泡材料的各项物理性能进行测试,并采用扫描电子显微镜观察材料泡孔的微观结构,系统研究了处理条件对发泡材料物理性能、收缩以及热老化的影响。结果表明:后处理在一定程度上提高了EPDM发泡材料的物理性能,降低了发泡材料的收缩性。
The ethylene-propylene-diene monomer （EPDM） foams were prepared by compression molding technology with azodicarbonamide（AC） as foaming agent and sulfur as cross-linking agent and post-treated at given temperature for given time.Physical properties of the foams were tested,and the microstructures of the foamed materials were investigated by scanning electron microscopy.The influence of post-treatment on the physical properties,shrinkage and thermal aging of the foams was studied.The results showed that post-treatment improved the physical properties of EPDM foams to some extent,and decreased the shrinkage of the foamed materials.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第24期74-79,91,共7页
Materials Reports
基金
陕西省重大科技创新项目专项(2009ZKC03-14)
温州科技局攻关资助项目(H20100082)
关键词
聚合物加工
EPDM
发泡材料
微观结构
力学性能
收缩性
polymer processing
EPDM
foamed materials
microstructure
mechanical properties
shrinkage
