UV光引发环氧树脂前沿聚合及其碳纤维复合材料的力学性能

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (5): 112-116.

UV光引发环氧树脂前沿聚合及其碳纤维复合材料的力学性能

赵培仲, 谭晓明, 戴京涛

海军航空大学青岛校区航空机械工程与指挥系,青岛266041

收稿日期:2019-09-17 出版日期:2020-05-25 发布日期:2020-05-28
作者简介:赵培仲(1978-),男,讲师,博士,主要研究方向为复合材料及其在航空维修中的应用,zpzgraduate@163.com。

FRONTAL CURING OF EPOXY RESIN AND ITS COMPOSITE BY UV RADIATION

ZHAO Pei-zhong, TAN Xiao-ming, DAI Jing-tao

Department of Aeronautical and Mechanical Engineering, Naval Universityof Aviation at Qingdao, Qingdao 266041, China

Received:2019-09-17 Online:2020-05-25 Published:2020-05-28

摘要/Abstract

摘要： 设计实现了脂环族环氧树脂(CEP)及其和甲基丙烯酸丁酯(BMA)共混物的UV光引发前沿聚合,通过对聚合过程中反应物温度的监测,分析了对热敏感的阳离子引发剂对聚合前沿下移速度的影响。结果发现热敏感的阳离子引发剂的加入能够提高聚合前沿的下移速度。在CEP中引入BMA后,CEP/BMA可以通过UV诱发前沿聚合形成半IPNs结构,聚合前沿下移速度下降。TG和DSC测试表明,BMA的引入降低了玻璃化转变温度和起始降解温度。以CEP或CEP/BMA为基体,以碳纤维为增强相制备复合材料,可以实现UV快速固化,并具有较好的力学性能。

关键词: 前沿聚合, 环氧树脂, UV光固化复合材料, 互穿聚合物网络(IPNs)

Abstract: UV-induced frontal curing behaviors of epoxy resin systems including not only the photoinitiator but also the thermal initiator were studied. Increase of the content of thermal initiator can increase frontal rate obviously. The frontal curing of CEP/PBMA semi-IPN systems were also studied. Compared with pure epoxy resin, the frontal rate of semi-IPN is lower. Without the thermal initiator, the front propagating of the semi-IPN can not be sustained. TG and DSC results show that the beginning degradation temperature and glass transition temperature decrease with the increase of the BMA weight percent. Carbon fiber fabric reinforced composite materials based on epoxy resin systems were prepared successfully using UV radiation. The epoxy resin matrixes include pure epoxy and EP/PBMA semi-IPN systems. According to the tensile testing results, with the increase of BMA weight percent, the tensile strength of composite decreases gradually.

Key words: frontal polymerization, epoxy resin, UV-cured composite materials, interpenetrating polymer networks (IPNs)

中图分类号:

TB332

赵培仲, 谭晓明, 戴京涛. UV光引发环氧树脂前沿聚合及其碳纤维复合材料的力学性能[J]. 复合材料科学与工程, 2020, 0(5): 112-116.

ZHAO Pei-zhong, TAN Xiao-ming, DAI Jing-tao. FRONTAL CURING OF EPOXY RESIN AND ITS COMPOSITE BY UV RADIATION[J]. Composites Science and Engineering, 2020, 0(5): 112-116.

参考文献

[1] Yagci Y, Jockusch S, Turro N J. Photoinitiated polymerization: advances, challenges, and opportunities[J]. Macromolecules, 2010, 43: 6245-6260.
[2] Decker C, Bianchi C. Ultrafast hardening of a modelling paste by UV-curing of a polyamide ﬁlled acrylic resin[J]. Journal of Materials Science, 2005, 40: 5491-5497.
[3] Maag K, Lenhard W, Loffles H. New UV curing systems for automotive applications[J]. Progress in Organic Coatings, 2000, 40: 93-97.
[4] Stephenson N, Kriks D, El-Maazawi M, et al. Spatial and temporal evolution of the photo initiation rate for thick polymer systems illuminated on both sides[J]. Polymer International, 2005, 54: 1429-1439.
[5] Kenning N S, Ficek B A, Hoppe C C. Spatial and temporal evolution of the photoinitiation rate for thick polymer systems illuminated by polychromatic light: selection of efficient photoinitiators for LED or mercury lamps[J]. Polymer International, 2008, 57: 1134-1140.
[6] Baikerikar K K, Scranton A B. Photopolymerizable liquid encapsulants for microelectronic devices[J]. Polymer, 2001, 42: 431-441.
[7] Baikerikar K K, Scranton A B. Photopolymerizable liquid encapsulants for microelectronic devices: thermal and mechanical properties of systems with reduced in-mold cure times[J]. Journal of Applied Polymer Science, 2001, 81: 3449-3461.
[8] Nason C, Roper T, Hoyle C, et al. UV-Induced frontal polymeriza-tion of multifunctional (meth) acrylates[J]. Macromolecules, 2005, 38: 5506-5512.
[9] Pojman J A. Frontal Polymerization[M]. Matyjaszewski K, Möller M. Polymer Science: A Comprehensive Reference. Amsterdam: Elsevier BV, 2012: 957-980.
[10] Crivello J V, Liu S S. Synthesis and cationic photopolymerization of monomers based on nopol[J]. Journal of Polymer Science: Part A: Polymer Chemistry, 1999, 37: 1199-1209.
[11] Rajaraman S K, Mowers W A, Crivello J V. Interaction of epoxy and vinyl ethers during photoinitiated cationic polymerization[J]. Journal of Polymer Science: Part A: Polymer Chemistry, 1999, 37: 4007-4018.
[12] Bi Y, Neckers D C. A visible light initiating system for free radical promoted cationic polymerization[J]. Macromolecules, 1994, 27: 3683-3693.
[13] Mariani A, Bidall S, Fiori S. UV-ignited frontal polymerization of an epoxy resin[J]. Journal of Polymer Science: Part A: Polymer Chemistry, 2004, 42: 2066-2072.
[14] Li G, Pourmohamadian N, Cygan A. Fast repair of laminated beams using UV curing composites[J]. Composite Structures, 2003, 60: 73-91.
[15] Li G, Ghebreyesus A. Fast repair of damaged RC beams using UV curing FRP composites[J]. Composite Structures, 2006, 72: 105-110.
[16] Peck J A, Li G, Pang S. Light intensity effect on UV cured FRP coupled composite pipe joints[J]. Composite Structures, 2004, 64: 539-546.
[17] Compston P, Schiemer J, Cvetanovska A. Mechanical properties and styrene emission levels of a UV-cured glass-fibre/vinylester composite[J]. Composite Structures, 2008, 86: 22-26.
[18] 王忠刚, 刘万双, 赵琳妮, 等.高性能脂环族环氧树脂分子设计与合成研究进展[J]. 高分子通报, 2011(9): 13-21.