中国塑料2017，Vol.31Issue(11)：27-34,8.DOI:10.19491/j.issn.1001-9278.2017.11.004
硅醇和芳香酯共聚改性PBS材料的制备与性能研究
Preparation and Performance of PBS-PBT-PDMS Copolymers
张燕 1杨杨 1王建 1顾芳 1闰明涛1
作者信息
- 1. 河北大学化学与环境科学学院,河北保定071002
- 折叠
摘要
Abstract
An oligomer was prepared by the reaction of succinic acid with butyl glycol,and a series of copolymers were synthesized by use of the digomer,dimethyl terephthalate and silanol through melt polycondensation.Chemical structure,crystallization-melting behavior,thermal performance,morphology and mechanical properties of the resultant copolymers were characterized by1 H-NMR,29 Si-NMR,differential scanning calorimetry,thermogravimetric analyzer,scanning electronic microscopy and universal testing machine.The results indicated that the copolymers were constituted by PBS as a main chain,silane segments as a chain extender and tougher and PBT bulk as a reinforcement.They not only achieved a liner molecular structure with a high molecular weight but also obtained an improvement in mechanical properties and thermal stability.Moreover,the copolymers exhibited imperfect spherulites due to the fast crystallization rate and lower crystallinity.Owing to a highly flexible silane segment and a rigid PBT segment,the copolymers achieved an increase in tensile strength by a factor of 1.4～2.1,an increase in impact strength by a factor of 4～7,and an increase in elongation at break by a factor of 2～4.关键词
聚丁二酸丁二醇酯/对苯二甲酸二甲酯/硅醇/扩链改性/力学性能Key words
poly(butylene succinate)/dimethyl terephthalate/silanol/chain extension/mechanical property分类
化学化工引用本文复制引用
张燕,杨杨,王建,顾芳,闰明涛..硅醇和芳香酯共聚改性PBS材料的制备与性能研究[J].中国塑料,2017,31(11):27-34,8.
