中国塑料2018，Vol.32Issue(5)：28-33,6.DOI:10.19491/j.issn.1001-9278.2018.05.004
纳米二氧化硅/POE协同增韧聚对苯二甲酸乙二醇酯及其发泡行为研究
Study on Synergistic Effect and Foaming Behavior of PET Toughened with Nano-SiO2/POE
摘要
Abstract
Poly (ethylene terephthalate) (PET)/poly (ethylene-1-octene) (POE)/nano-SiO2 composites were prepared by a two-step melt blending process and then was foamed by a batch method with supercritical carbon dioxide as a foaming agent.The effects of nano-SiO2 and POE on the toughness and foaming behaviors of composites were investigated.The results indicated that the impact resistance of composites was enhanced significantly with the addition of nano-SiO2,and the impact strength increased by 150 ％ from 11.63 kJ/m2 to 29.15 kJ/m-2 when 0.3 phr of nanoSiO2 was introduced.There is a synergistic toughening effect observed between Nano-SiO2 and POE.The storage modulus and complex viscosity of composites were found to decrease with an increase of nano-SiO2 content.Moreover,the cell size of composite foams was reduced from 75.39 to 50.49μm with an increase of nano-SiO2 content from 0 to 1.0 phr,but their cell density increased from 6.67 × 107 to 9.61 × 107 cells/cm3 due to the heterogeneous nucleation effect of nano-SiO2.关键词
聚对苯二甲酸乙二醇酯/纳米二氧化硅/乙烯-辛烯共聚物/增韧/发泡/异相成核Key words
poly(ethylene terephthalate)/nano silica/poly(ethylene-1-octene)/toughening/foaming behavior/heterogeneous nucleation分类
化学化工引用本文复制引用
王文博,王亚桥,余克松,王向东..纳米二氧化硅/POE协同增韧聚对苯二甲酸乙二醇酯及其发泡行为研究[J].中国塑料,2018,32(5):28-33,6.基金项目
国家重点研究与发展计划(2016YFB0302203、2016YFB0302205) （2016YFB0302203、2016YFB0302205）
中国科学技术部(2013EG111219) （2013EG111219）
2017商科特色项目(19005757053) （19005757053）
