Reaction characteristics and kinetics of solid-state polymerization of flame-retardant polyesters

被引：0

作者：

Wan S.-Y. ^{[1
]}

Zhang Y.-T. ^{[1
]}

Wang Y. ^{[1
]}

Yin Y.-R. ^{[1
]}

Zhang X.-M. ^{[1
]}

Yang Z.-C. ^{[2
]}

Shi J.-X. ^{[2
]}

Chen W.-X. ^{[1
]}

机构：

[1] National Engineering Laboratory for Textile Fiber Materials & Processing Technology, Zhejiang Sci-Tech University, Hangzhou

[2] Zhejiang Guxiandao Green Fiber Co. Ltd., Shaoxing

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2022年 / 36卷 / 06期

关键词：

phosphorus flame retardant; polyesters; reaction kinetics; solid-state polymerization;

D O I：

10.3969/j.issn.1003-9015.2022.06.007

中图分类号：

学科分类号：

摘要：

Solid-state polymerization of flame-retardant polyesters with different contents of phosphorus was studied at different temperatures and reaction times to investigate reaction mechanism. Effects of processing conditions and phosphorus contents on intrinsic viscosity were studied. The results show that solid-state polymerization can effectively reduce end carboxyl group contents with no obvious degradation side reactions. At 190-210 ℃, all polyesters show significant intrinsic viscosity increase with the increase of polymerization time, while the increment rate decreases with the increase of phosphorus content. Additionally, based on the established reaction kinetics model, the reaction rate constant and activation energy of solid-state polymerization were determined. With the increase of flame retardant content, the reaction rate constant decreases while the activation energy increases, which indicates that the addition of phosphorus-flame retardants has an inhibitory effect on the solid-state polymerization of polyesters. © 2022 Zhejiang University. All rights reserved.

引用

页码：825 / 833

页数：8

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