中国塑料2024，Vol.38Issue(1)：14-20,7.DOI:10.19491/j.issn.1001-9278.2024.01.003
聚醋酸乙烯酯(PVAc)对PHB/PCL共混物理化性能研究
Effect of poly(vinyl acetate)(PVAc)on physicochemical properties of PHB/PCL blends
摘要
Abstract
Poly(vinyl acetate)(PVAc)as a non-covalent compatibilizer was incorporated into a polyhydroxybutyrate(PHB)/polycaprolactone(PCL)binary blending system at a mass ratio of 25/75,and its film was prepared through solu-tion casting.The effect of addition amounts of PVAc on the mechanical properties and physicochemical properties of the blend system was investigated.Tensile experimental results indicated that the elongation at break and tensile strength of the PHB/PCL film containing 1 wt%PVAc were 2.50 and 1.19 times higher than those of the counterpart film without PVAc,respectively.FTIR spectra showed that there was an intermolecular hydrogen bonding interaction between the carbonyl and methyl groups of PHB and PCL due to a bridging action of PVAc.This results in a shift of carbonyl absorp-tion band along with a decrease in the peak intensity.SEM showed that the addition of PVAc reduced the size of dis-persed phase in the blend system,promoting a more uniform distribution.As a result,and the compatibility of the blend system was improved.关键词
聚羟基丁酸酯/聚己内酯/聚醋酸乙烯酯/增容剂/共混Key words
polyhydroxybutyrate/polycaprolactone/poly(vinyl acetate)/compatibilizer/blending分类
化学工程引用本文复制引用
陈程,张豪,杨梦瑶,陈海英,孙昊,卫灵君..聚醋酸乙烯酯(PVAc)对PHB/PCL共混物理化性能研究[J].中国塑料,2024,38(1):14-20,7.基金项目
国家重点研发计划(2022YFD2100305-01) （2022YFD2100305-01）
川菜发展研究中心规划项目(cc22Z01) （cc22Z01）
