Effect of phase separation on the crystallization of soft segments of green waterborne polyurethanes

被引：60
作者：
Xiao, Yao [1 ]
Jiang, Liang [1 ]
Liu, Zhimeng [1 ]
Yuan, Ye [1 ]
Yan, Peiyao [1 ]
Zhou, Changlin [1 ]
Lei, Jingxin [1 ]
机构：
[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Peoples R China
来源：
POLYMER TESTING | 2017年 / 60卷
基金：
中国国家自然科学基金;
关键词：
Crystallization; Energy dispersive spectrometer; Phase separation; Waterborne polyurethanes; POTENTIAL APPLICATION; X-RAY; DISPERSIONS; ELASTOMERS; COPOLYMERS; BEHAVIOR; BLOCK; NANOCOMPOSITES; TRANSITIONS; IONOMERS;
D O I：
10.1016/j.polymertesting.2017.03.029
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Effect of phase separation on the crystallization of soft segments of green waterborne polyurethanes (WPUs) was discussed in this paper. Phase separation was studied through dynamic mechanical analysis and energy dispersive spectrometer. Energy dispersive spectrometer was employed originally for the study of phase separation of polyurethanes in our study. Crystallization of soft segments of green WPUs was characterized by differential scanning calorimetry, X-ray diffraction and polarizing optical microscope. Characterization results indicated that phase separation hindered the crystallization of soft segments of green WPUs; higher phase separation degree gave rise to lower crystallization capacity, lower crystallinity and smaller crystals of soft segments. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：160 / 165
页数：6
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