摘要
利用流变学分析方法研究了氯化钙(CaCl2)含量对尼龙6(PA6)/马来酸酐接枝乙烯-辛烯共聚物(POE-g-MAH)共混体系形态与结晶行为的影响,并对其影响机理进行了研究。研究发现,随着CaCl2含量的增加,PA6的成核温度、晶体形成及生长温度均向低温方向移动,成核密度、成核速率均表现出减小的趋势。扫描电镜分析表明,随着CaCl2含量的增加,复合体系的相容性变好。综合得知,流变学分析方法可以较好地反映CaCl2与PA6络合后复合体系的结晶行为,在研究聚合物微观结构的变化以及PA6结晶受限机理时,它不失为一种有效,较客观的研究方法。
The effects of calcium chloride （CaC12） concentration on the morphology and crystallization behavior of polyamide 6 （PA6）/maleic anhydride grafting ethylene-octene copolymer （POE-g-MAH） compounds by the dynamic rheological analysis were carried out. Besides, the mechanism of crystallization restricted was investigated. The results show that as the content of CaC12 increases, onset temperature of nucleation, development temperature of spherulites from nuclei, and finally growth temperature of spherulites dramatically decrease. The nucleation density and the rate of nucleation also reduce significantly. SEM analysis reveals that with increases of the CaC12 content, the compatibility of composite materials is improved. In conclusion, rheology analysis is capable of detecting the crystallization behavior of composite materials, effective and objeetive to study the change of polymer microstructure and the confined crystallization mechanism of PA6.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2014年第7期90-95,共6页
Polymer Materials Science & Engineering
基金
贵州省优秀青年科技人才培养对象专项资金项目(黔科合人字(2013)33号)
贵州省教育厅研究生卓越人才计划项目(黔教研ZYRC字[2013]006号)
关键词
尼龙
马来酸酐接枝乙烯-辛烯共聚物
氯化钙
结晶性能
流变性能
相容性
polyamide-6
maleic anhydride grafting ethytene-octene copolymer
calcium chloride
crystallizationproperties
theological property
compatibility
