常州大学学报（自然科学版）2016，Vol.28Issue(5)：1-6,6.DOI:10.3969/j.issn.2095-0411.2016.05.001
母料法制备LDPE/EVA/粘土纳米复合材料及其性能研究
Study on the Preparation of LDPE/EVA/Clay Nanocomposites by Masterbatch Method and Structure-Property Relationship
摘要
Abstract
Polyethylene clay nanocomposites were prepared from melt intercalation process.Influence of two kinds of preparation methods including masterbatch and one-step process on the dispersion state and prop-erties of nanocomposites were compared.The dispersion state of the clay layers in matrix were evaluated u-sing X-ray diffraction and transmission electron microscopy.The results showed that masterbatch method is favorable to exfoliation of clay layer in LDPE/EVA matrix.The homogeneous dispersion of clay layer in polymer matrix promotes the char formation greatly.The resulting compact and continuous char layer sup-press the transfer of heat and oxygen effectively.The peak heat release rate (p HRR)of nanocomposites prepared by masterbatch method was decreased by 54% relative to LDPE/EVA matrix. Thermogravimetric analysis results indicate that clay can play a catalytic role on the promotion of char forming reactions and so increase the residual char.The elastic modulus of LDPE/EVA/5% Clay nano-composite is 324.98MPa,increased by 45.8% relative to LDPE/EVA matrix.关键词
母料法/聚乙烯/粘土/纳米复合材料/阻燃性能Key words
masterbatch/polyethylene/clay/nanocomposites/flame retardance分类
化学化工引用本文复制引用
任强,亓云霞,宋艳,吴盾,汪称意,李坚..母料法制备LDPE/EVA/粘土纳米复合材料及其性能研究[J].常州大学学报（自然科学版）,2016,28(5):1-6,6.基金项目
江苏省高校优势学科建设工程资助项目(苏学科办[2014]9) （苏学科办[2014]9）
江苏省产学研前瞻项目(BY2011124)。 （BY2011124）
