石油化工2011，Vol.40Issue(11)：1230-1235,6.
对氯/对甲基二苄叉山梨醇组合物对聚丙烯的成核作用
Nucleation of Di-(p-Methyl/Chioro Benzylidene)Sorbitol Composition in Polypropylene
摘要
Abstract
Di-(p-methyl/chloro benzylidene) sorbitol(DMCBS) composition was synthesized from P-methyl benzaldehyde, p-chloro benzaldehyde and sorbitol with mole ratio of 1 : 1 : 1 and was characterized by means of HPLC-MS. The effects of DMCBS composition, di-(P-methyl benzylidene) sorbitol ( DMBS ) and di-( p-chloro benzylidene ) sorbitol ( DCBS ) as nucleating agents on crystallization temperature (tc), haze and flexural modulus of polypropylene ( PP) were investigated. The results indicated that DMCBS composition comprised 24% (w) DMBS, 19% (w) DCBS and 57% (w) DMCBS. There was salting out effect between the components of DMCBS composition in PP. The flexural modulus and tc of PP increased gradually and its haze decreased with the increase of the DMCBS composition dosage. The flexural modulus and tc of PP with 0.40% (w) DMCBS composition increased by 43.5% and 16.2 ℃ respectively, and the haze decreased from 76.8% to 17.9%.关键词
对甲基苯甲醛/对氯苯甲醛/非对称型山梨醇缩醛/成核剂/聚丙烯Key words
p-methyl benzaldehyde/ p-chloro benzaldehyde/ asymmetric sorbitol acetal/ nucleating agent/ polypropylene分类
化学化工引用本文复制引用
周军,辛忠..对氯/对甲基二苄叉山梨醇组合物对聚丙烯的成核作用[J].石油化工,2011,40(11):1230-1235,6.基金项目
国家自然科学基金项目(20806023) （20806023）
中国石油化工集团公司项目(205100) （205100）
中央高校基本科研业务费专项资金资助项目. （）
