PBS/EVOH共混物制备与性能研究  

Preparation and Properties of Polybutylene Succinate/Ethylene-Vinyl Alcohol Blends

作　　者：赵芸芳[1] 

机构地区：[1]中北大学化工与环境学院,太原030051

出　　处：《工程塑料应用》2012年第10期69-72,共4页Engineering Plastics Application

摘　　要：利用熔融共混法制备了综合性能优良的聚丁二酸丁二醇酯/乙烯–乙烯醇共聚物(PBS/EVOH)共混物,并通过扫描电子显微镜、傅立叶转变红外光谱(FTIR)仪、万能试验机以及差示扫描量热分析仪分别研究了共混体系的微观形态、两相间的作用情况、力学性能以及热性能。结果表明,共混体系为两相"海-岛"结构,分散相以"球状"均匀地分布于连续相中,且两相界面结合比较好;FTIR结果证实了PBS与EVOH之间存在强烈的氢键作用,且氢键作用降低了PBS结晶度,从而可以加快PBS的降解过程。PBS/EVOH共混物可用于制造可降解的包装薄膜材料。Poly butylenes succinate / ethylene-vinyl alcohol （ PBS ! EVOH ） blends were prepared by melt blending.The morphology, interaction between two phase, mechanical and thermal properties of the composites were investigated via scanning electron microscopy （ SEM ）, fourier transform infrared chromatograph （ FTIR ）, universal testing machine and differential scanning calorimetry （ DSC ） respectively.The result showed that the composite was two-phase ＂sea-island＂ structure, the interaction between the sphere dispersed phase and continuous phase was good.FTIR analysis verified the existence of H-bonding between PBS and EVOH, and H-bonding reduced the crystallization of PBS, so accelerated the degradation of PBS.PBS / EVOH blends could be used to make biodegradable packing film.

关 键 词：聚丁二酸丁二醇酯 乙烯-乙烯醇共聚物 氢键 降解 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]