Study on impact resistance and toughening modification of phenolic resin and its curing kinetics

doi:10.19936/j.cnki.2096-8000.20220428.017

Abstract

Abstract: Phenolic resin was toughened by polyvinyl butyral (PVB), core-shell rubber, nithile rubber and epoxy resin in this paper. The influence of different toughening agent systems and addition amounts of toughening agents on the toughening effect of phenolic resin was studied by evaluating the impact resistance performance of composite test panels. The curing kinetics of the toughened modified phenolic resin was studied by rheology, DSC testing combined with non-isothermal kinetics. The cross-section morphology of the test plate after impact was observed by SEM, and the toughening mechanism was explained. The results show that the toughness effect of modified phenolic resin modified with PVB as a toughening agent is the most significant, and the addition of PVB will not affect the curing kinetics of the phenolic resin system. When the amount of PVB added is 15%, the impact resistance of the modified phenolic resin composite test board reaches the maximum value of 23.72 J. According to SEM analysis, the PVB added in the toughened modified phenolic resin makes the resin matrix exhibit better ductile fracture when impacted by an external force.

Key words: phenolic resin, toughening modification, impact resistance, curing kinetics, composites

CLC Number:

TB332

XU Guo-juan, JIA Chen-hui, CHEN Jing-ju, TIAN Mou-feng. Study on impact resistance and toughening modification of phenolic resin and its curing kinetics[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(4): 104-110.

References

[1] 王登武, 王芳. 酚醛树脂的耐热及增韧改性研究进展[J]. 工程塑料应用, 2014, 11(42): 133-137.
[2] 刘佳宁, 侯秋飞, 胡若飞, 等. 酚醛树脂改性及应用概述[J] .科技创业月刊, 2016(11): 134-136.
[3] 李春华, 齐暑华, 张剑, 等. 酚醛树脂的增韧改性研究进展[J]. 国外塑料, 2006, 2(24): 35-39.
[4] 张栋. 建筑用酚醛泡沫保温板的增韧改性[D]. 沈阳: 沈阳建筑大学, 2015.
[5] 董景隆. 改性酚醛树脂/碳纤维复合材料的研究[D]. 长春: 长春工业大学, 2016.
[6] 刘世强, 宁培森, 丁著明. 改性酚醛树脂的研究进展[J]. 热固性树脂, 2016, 31(5): 64-70.
[7] 欧阳涛, 尹绍峰, 谢志勇, 等. 膨胀石墨/酚醛树脂-聚乙烯醇缩丁醛复合双极板的制备与性能[J]. 复合材料学报, 2018, 35(11): 38-45.
[8] 周书助, 尹绍峰, 黄启忠, 等. PVB改性酚醛树脂对PEMFC碳纸的影响[J]. 高科技纤维与应用, 2017, 42(2): 32-36, 49.
[9] 葛东彪, 王书忠胡福增, 等. 酚醛树脂增韧改性的进展[J]. 玻璃钢/复合材料, 2003(5): 37-41.
[10] 彭进, 张琳琪, 等. 纳米端羧基丁睛橡胶增韧酚醛树脂及其在有机磨具中的应用研究[J]. 河北化工, 2008, 31(3): 4-6.
[11] 宋进, 张连霞, 赵先义, 等. 酚醛树脂的增韧改性研究[J]. 冶金与材料, 2019, 39(6): 35-37.
[12] KISSINGER H E. Reaction kinetics in differential thermal analysis[J]. Journal of Analytical Chemistry, 1957, 29: 1702-1706.
[13] 孙举涛. 室温固化剂对硅树脂热分解反应动力学的影响[J]. 高校化学工程学报, 2006, 22(3): 532.
[14] 李文娅, 赵春霞, 岳杰, 等. 苯并噁嗪/核壳橡胶体系的固化动力学研究[J]. 材料导报, 2015(s1): 248-250.
[15] 马玉春, 孟庆荣, 张留成. 酚醛树脂/双马来酰亚胺体系的固化动力学[J]. 高分子材料科学与工程, 2008, 24(9): 120.