王中最;胡斌;黄敬鉥;黄俊;李光照;韩锐;

• 1:西华大学材料科学与工程学院
• 2:成都纺织高等专科学校材料与环保学院

摘要(Abstract)：

将自组装成核剂TMB-5应用于高密度聚乙烯(HDPE)的晶体结构调控,以提高HDPE制品的力学性能。通过偏光显微镜(POM)、XRD和DSC分析,研究了TMB-5在HDPE基体中的自组装行为,及其对HDPE结晶行为和晶体结构的影响。结果表明:TMB-5可在HDPE中发生自组装,且自组装行为与TMB-5的溶解度相关。在180、230和250℃三个最高加热温度下,TMB-5可分别自组装形成颗粒状、纤维状和三维树枝状结构,进而诱导HDPE以TMB-5为模板,生长成与模板相同的晶体形态。此外,加入TMB-5可使HDPE的结晶温度和结晶起始温度升高1²℃,并使其晶粒细化、晶粒尺寸分布变宽,结晶度由66%提高至79%。

关键词(KeyWords)： 高密度聚乙烯;自组装成核剂;自组装行为;结晶行为;晶体结构

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年项目(51703182);; 四川省科技厅应用基础研究专项(2017JY0137);; 四川省教育厅科研项目(17ZB0412);; 西华大学大学生创新创业训练计划项目(201610623060)

作者(Authors): 王中最;胡斌;黄敬鉥;黄俊;李光照;韩锐;

DOI: 10.15925/j.cnki.issn1005-3360.2018.10.021

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