PHA纤维的碱降解动力学研究  

Kinetics of alkali degradation of PHA fibers

作　　者：廖杏梅 周露露[1] 王祥荣[1] LIAO Xingmei;ZHOU Lulu;WANG Xiangrong(College of Textile and Clothing Engineering, Suzhou University, Suzhou 215123, China)

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215123

出　　处：《印染助剂》2019年第3期15-18,共4页Textile Auxiliaries

基　　金：江苏省重点研发计划--产业前瞻与共性关键技术(BE2016073)

摘　　要：研究了不同碱质量浓度、温度、加入催化剂等条件下聚羟基脂肪酸酯(PHA)纤维的碱降解动力学,并对降解速率曲线进行拟合,得到适合描述其反应行为的动力学模型:PHA质量浓度的增大、温度的升高以及催化剂的加入。The alkali degradation kinetics of polyhydroxyalkanoates (PHA) fibers under conditions of differ- ent alkali conce ntratio n, d iff ere nt temperature and catalyst was studied. The degradation rate curve was fitted to obtain a suitable kinetic model for describing the reaction behavior. The alkali degradation kinetics of PHA fi bers accorded with quasi-second-order kinetics model, and the fitting coefficient was more than 0.90. With the in crease of alkali concen tration, temperature and in the prese nse of catalyst, the degradation rate of PHA fiber in creased.

关 键 词：聚羟基脂肪酸酯纤维 碱降解 动力学 拟合模型 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业] O643.1[理学—物理化学]