改性热塑性聚合物增韧TGDDM环氧树脂的研究

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (7): 5-11.

• 基础研究 • 下一篇

改性热塑性聚合物增韧TGDDM环氧树脂的研究

蔡昊, 汪济奎^*, 王耀先

特种功能高分子材料及相关技术教育部重点实验室,华东理工大学材料科学与工程学院,上海 200237

收稿日期:2015-01-26 出版日期:2015-07-28 发布日期:2021-09-13
通讯作者: 汪济奎(1964-),男,博士,教授,研究方向为高分子及复合材料,wang326@ecust.edu.cn。
作者简介:蔡昊(1990-),男,硕士研究生,研究方向为合成树脂及复合材料。

STUDY ON MODIFIED THERMOPLASTIC POLYMER TOUGHENED TGDDM EPOXY RESIN

CAI Hao, WANG Ji-kui^*, WANG Yao-xian

Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

Received:2015-01-26 Online:2015-07-28 Published:2021-09-13

摘要/Abstract

摘要： 采用改性热塑性聚合物(MTP30)对4,4'-二氨基二苯甲烷四缩水甘油基环氧树脂(TGDDM)进行增韧改性,借助红外光谱及DSC研究其预聚合和固化反应动力学,探讨了固化反应机理,评估了增韧效果,并使用SEM观察了其微观结构形貌。结果显示,采用15phr MTP30增韧TGDDM/MNA体系时,其浇注体的断裂伸长率为7.19%,相比于未增韧时提升了425%;冲击强度为15.6kJ/m²,相比未增韧时提升了109%;热变形温度(HDT)和玻璃化温度(Tg)仅略有下降;MTP30在TGDDM树脂中分散均匀,增韧效果显著。

关键词: TGDDM, 热塑性聚合物, 增韧, 力学性能

Abstract: The modified thermoplastic polymer (MTP30) was used for tetraglycidyl 4, 4'-diaminodiphenyl methane (TGDDM) epoxy resin toughening modification. The pre-polymerization and curing reaction kinetics of TGDDM were studied with infrared spectrum and differential scanning calorimetry (DSC). The mechanism of curing reaction and toughening effects were discussed. The microstructure morphology was observed by SEM. The results indicate that by using 15phr MTP30 toughened TGDDM/MNA system, the elongation at break and impact strength of the casting were 7.19% and 15.6 kJ/m², respectively, while the heat distortion temperature and the glass transition temperature (Tg) only slightly decreased, and that MTP30 uniformly dispersed in TGDDM resin system, which shows obvious toughening effect.

Key words: tetraglycidyl 4,4'-diaminodiphenyl methane (TGDDM), thermoplastic polymer, toughening, mechanical properties

中图分类号:

TB332
TQ325

蔡昊, 汪济奎, 王耀先. 改性热塑性聚合物增韧TGDDM环氧树脂的研究[J]. 复合材料科学与工程, 2015, 0(7): 5-11.

CAI Hao, WANG Ji-kui, WANG Yao-xian. STUDY ON MODIFIED THERMOPLASTIC POLYMER TOUGHENED TGDDM EPOXY RESIN[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(7): 5-11.

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改性热塑性聚合物增韧TGDDM环氧树脂的研究

STUDY ON MODIFIED THERMOPLASTIC POLYMER TOUGHENED TGDDM EPOXY RESIN

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