活化石墨烯微片对聚β-羟基丁酸酯结晶性能和热性能的影响  

Effect of activated GONPs on crystalline and thermal properties of PHB

作　　者：杜江华[1] 喻迎春 杨婷婷 Du Jianghua;Yu Yingchun;Yang Tingting(Key Laboratory of Polymer Materials and Manufacturing Technology of North Minzu University,School of Materials Science&Engineering,North Minzu University,Yinchuan 750021,China)

机构地区：[1]北方民族大学材料科学与工程学院,北方民族大学高分子材料及制造技术重点实验室,宁夏银川750021

出　　处：《合成树脂及塑料》2023年第6期39-42,共4页China Synthetic Resin and Plastics

基　　金：宁夏自然科学基金(2022AAC03273);北方民族大学研究生创新项目(YCX21116)。

摘　　要：采用溶液浇铸法制备了聚β-羟基丁酸酯(PHB)/活化石墨烯微片(GONPs)复合材料,并研究了GONPs对PHB晶体结构、非等温结晶性能、热分解温度和热加工稳定性的影响。结果表明:GONPs加快了PHB的非等温结晶,但不会改变PHB的晶体结构;PHB的结晶度和热分解温度均随GONPs用量的增加而提高;GONPs对PHB热加工稳定性的影响不显著,但PHB自热解发生后,PHB/GONPs复合材料的热降解程度较纯PHB变缓。Activated graphene nano platelets(GONPs)/polyhydroxybutyrate(PHB)composites were prepared via solution cast technique.The effects of GONPs on crystal structure,nonisothermal crystallization properties,thermal decomposition temperature and thermal stability of processing of PHB were investigated.The results indicate that the addition of GONPs accelerates the non-isothermal crystallization process of PHB,while the crystal structure of PHB isn’t changed.With the increase of GONPs’content,the crystalline and thermodecomposed temperature of PHB are improved.The effect of GONPs on the thermal stability of processing of PHB is little.However,when the thermal decomposition of PHB happens,the thermal degradation of PHB/GONPs composites is slower than that of pure PHB.

关 键 词：活化石墨烯微片 聚Β-羟基丁酸酯 结晶 热稳定性 

分 类 号：TQ323[化学工程—合成树脂塑料工业]