摘要
以马来酸酐(MAH)为接枝单体、过氧化苯甲酰为引发剂,采用熔融接枝法改性氯化聚丙烯(CPP)。采用红外和核磁对产物进行表征,计算了改性产品的接枝率,系统探讨了引发剂用量、反应温度、接枝率对接枝产物酯溶性和在聚丙烯(PP)基材表面附着力和粘接强度的影响及原因。结果表明:MAH接枝CPP改变了产品极性,提高了产品在乙酸乙酯中的溶解度,在反应条件适宜时也提高了产品在PP基材表面的附着力。当过氧化苯甲酰(BPO)用量为0.05份,100℃时,接枝改性CPP在乙酸乙酯中溶解度最大(9.58g),较未改性CPP提升了4.67倍,在PP基材上的附着力最好(国际0级),粘接强度最大(0.689MPa)。
The chlorinated polypropylene（CPP）was grafted with maleic anhydride（MAH）as grafting monomer,benzoyl peroxide（BPO）as initiator by melt grafting method.The grafting products were characterized by means of FT-IR and ^1HNMR,and the grafting yield was also calculated.The effects and causes of the amount of initiator,the reaction temperature and the grafting yield on solubility in ester solvents and adhesion and bonding strength on PP substrate surface of graft-modified products were studied systematically.When mass ratio of BPO to total was 0.05,reaction temperature was100℃,the solubility in ethyl acetate of grafted CPP was maximum（9.58g）,improving 4.67 times compared to the unmodified CPP.The adhesion on PP substrate was best（international level 0）,the adhesive strength was the maximum（0.689MPa）.
出处
《化工新型材料》
CAS
CSCD
北大核心
2016年第7期158-160,共3页
New Chemical Materials
基金
中国北方化学工业集团有限公司青年科技创新专项资助项目(QKCZ-mp-2015-02)
关键词
氯化聚丙烯
接枝改性
酯溶性
粘接强度
chlorinated polypropylene
graft modification
ester-solubility
adhesive strength
