|本期目录/Table of Contents|

[1]席尔莉,俞中锋,申剑冰,等.聚氨酯改性环氧树脂的制备及固化动力学[J].南京工业大学学报(自然科学版),2014,36(02):95-100.[doi:10.3969/j.issn.1671-7627.2014.02.016]
 XI Erli,YU Zhongfeng,SHEN Jianbing,et al.Synthesis and curing kinetics of polyurethane modified epoxy resin[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(02):95-100.[doi:10.3969/j.issn.1671-7627.2014.02.016]
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聚氨酯改性环氧树脂的制备及固化动力学()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年02期
页码:
95-100
栏目:
出版日期:
2014-03-30

文章信息/Info

Title:
Synthesis and curing kinetics of polyurethane modified epoxy resin
文章编号:
1671-7627(2014)02-0095-06
作者:
席尔莉俞中锋申剑冰张泱泱姚成
南京工业大学 理学院,江苏 南京 210009
Author(s):
XI ErliYU ZhongfengSHEN JianbingZHANG YangyangYAO Cheng
College of Science,Nanjing Tech University,Nanjing 210009,China
关键词:
聚氨酯预聚体 环氧树脂 接枝 二聚酸聚酰胺固化剂 固化动力学
Keywords:
polyurethane prepolymer epoxy resin graft modification dimer acid based polyamide curing agent curing kinetics
分类号:
TQ028.8
DOI:
10.3969/j.issn.1671-7627.2014.02.016
文献标志码:
A
摘要:
采用聚丙二醇(PPG)和4,4’-二苯基甲烷二异氰酸酯(MDI)为反应原料,制备端异氰酸根聚氨酯(PU)预聚体,并利用它对E-51型环氧树脂进行接枝改性,制得PU预聚体与E-51型环氧树脂的接枝共聚物(g-PU/EP)。采用非等温差示扫描量热(DSC)法研究其与二聚酸聚酰胺固化剂的固化动力学。研究表明:固化体系的活化表观能为66.10 kJ/mol,反应级数为0.930。固化反应的凝胶温度、固化温度和后固化温度分别为310.77、364.62和397.18 K。
Abstract:
Polypropylene glycol(PPG)and 4,4’-diphenylmethane diisocyanate(MDI)were used as raw materials for the synthesis of isocyanate terminated polyurethane(PU)prepolymer.Then, PU prepolymer was used to graft E-51 epoxy resin to obtain graft PU/EP(g-PU/EP).The curing kinetics of g-PU/EP and dimer acid based polyamide curing agent was investigated by non-isothermal differential scanning calorimetry(DSC)test.The curing reaction apparent activation energy of curing system was 66.10 kJ/mol,curing reaction order 0.930,the gel temperature 310.77 K,curing temperature 364.62 K,and post-curing temperature 397.18 K.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-05-13
作者简介:席尔莉(1987—),女,江苏无锡人,硕士,主要研究方向为环氧胶黏剂; 姚成(联系人),教授,E-mail:yaocheng@njtech.edu.cn..
更新日期/Last Update: 2014-03-20