摘要
采用过氧化苯甲酰(BPO)和过氧化甲乙酮(MEKP)两种固化体系对原子灰(不饱和聚酯树脂)进行固化和差示扫描量热(DSC)测试,考察了原子灰的固化性能、固化程度以及低温敏感性。结果表明,在BPO–DMA(N,N-二甲基苯胺)体系中引入异辛酸钴[Co(Ⅱ)]后,原子灰的固化快,表干好,附着力优,温度敏感性低。当BPO–DMA–Co(Ⅱ)固化体系中促进剂DMA与Co(Ⅱ)的质量比为1∶1时,原子灰的固化过程放热快,转化率高,固化时间短,固化后的打磨性较佳。
An unsaturated polyester resin putty was cured by two curing systems,i.e.benzoyl peroxide(BPO)and methyl ethyl ketone peroxide(MEKP),and tested by differential scanning calorimetry(DSC).The curing performance,curing degree,and low-temperature sensitivity of the putty were examined.The results showed that the introduction of cobalt bis(2-ethylhexanoate),coded as Co(II),into the BPO DMA(N,N-dimethylaniline)system made the putty fast curing,good surface dryness,excellent adhesion,and less temperature sensitivity.The putty using a BPO DMA Co(II)curing system with a mass ratio of 1:1 for the promoters DMA and Co(II)had the following properties:fast heat release rate in the curing process,high conversion rate,short solidification time,and good polishability after being solidified.
作者
刘丽
刘欣伟
邢红立
刘方方
LIU Li;LIU Xin-wei;XING Hong-li;LIU Fang-fang(College of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China)
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2019年第8期380-385,共6页
Electroplating & Finishing
基金
河北省高等学校科学技术研究项目资助青年基金项目(QN2018142)
河北科技大学研究生创新资助项目
