生物可降解PPC/P34HB共混物制备与性能  

Preparation and Properties of Biodegradable PPC/P34HB Blends

作　　者：秦宜轩 张天宇 尚飞 邓鑫磊 沈韵达 任亮[1] QIN Yixuan;ZHANG Tianyu;SHANG Fei;DENG Xinei;SHEN Yunda;REN Liang(School of Chemical Engineering,Changchun University of Technology,Changchun,Jilin 130012,China;Shandong Ruiying Pharmaceutical Group Co.,Ltd.,Heze,Shandong 274000,China;Qihe Technology(Jilin)Co.,Ltd.,Changchun,Jilin 130013,China)

机构地区：[1]长春工业大学,化学工程学院,吉林长春130012 [2]山东睿鹰制药集团有限公司,山东菏泽274000 [3]旗禾科技(吉林)有限责任公司,吉林长春130013

出　　处：《塑料》2024年第5期178-181,共4页Plastics

摘　　要：采用熔融共混的方法制备了不同质量比的聚碳酸亚丙酯/聚(3-羟基丁酸酯-co-4-羟基丁酸酯)共混物(PPC/P34HB),分析了P34HB添加量对共混物性能的影响。结果表明,PPC共混物的韧性随着P34HB的加入逐渐增大,当其添加量为30%时,冲击强度提升了271.4%。由复合材料流变性能测试可知,P34HB由于含有侧甲基,将其引入体系中提高了共混物的储能模量和损耗模量,降低了其复数黏度,改善了材料的加工性能。热失重结果表明,P34HB的引入,提高了共混物的初始分解温度。由其微观形貌可知,断面表面从光滑表面最后转变为“海岛”结构,证明材料韧性得到了改善。Polypropylene carbonate/Poly(3-hydroxybutyrate-co-4-hydroxybutyrate)blends(PPC/P34HB)with different mass ratios were prepared by melt blending,and the effect of P34HB addition on the properties of the blends was investigated.The results showed that the toughness of the PPC blends increased continuously with the addition of P34HB,and the impact strength was enhanced by 271.4%when the addition amount was 30%.Rheological property tests revealed that the introduction of P34HB into the system increased the energy storage modulus,loss modulus of the blends and decreased their complex viscosity and improved the processing properties of the materials due to the removal of the side methyl groups.Thermal weight loss showed that the introduction of P34HB increased the initial decomposition temperature of the blends.Micro-morphological observations revealed that the section surface changed from a smooth surface to an"island"structure,which proved that the toughness of the material was improved.

关 键 词：聚碳酸亚丙酯 聚(3-羟基丁酸酯-co-4-羟基丁酸酯) 共混物 性能 增韧 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]