UV-curing process and mechanical properties of bisphenol a epoxy resin

被引：0

作者：

Liu, Bo ^{[1
]}

Li, Yong ^{[1
]}

Xiao, Jun ^{[1
]}

Chen, Yunlei ^{[1
]}

Xiao, Jian ^{[1
]}

机构：

[1] College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics

来源：

Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2014年 / 35卷 / 05期

关键词：

Epoxy resins; Infrared spectrometry; Mechanical property; Photoinitiated cationic polymerization; UV-curing;

D O I：

10.7527/S1000-6893.2013.0420

中图分类号：

学科分类号：

摘要：

In order to promote the application of UV-curing technology in the curing of epoxy resin and its composites, UV-curing of bisphenol A epoxy resin is studied, with the use of a self-developed curing equipment. The curing degree of the resin is measured by the FTIR spectrometry. The curing characteristics and effects of the concentration of both photoinitiator and active diluents on curing rate of the resin are investigated. On this basis, the optimal proportion for the UV-curing system is obtained as 100 to 10 to 5 mass ratio of epoxy E51 to active diluents 660A to photoinitiator 1176. The mechanical properties of UV-cured specimens are also investigated, the tensile strength and modulus can reach 32.34 MPa and 1.80 GPa and the flexural strength and modulus are 60.64 MPa and 1.73 GPa, respectively. The results reveal that the curing rate of the resin is raised up with the increasing of the photoinitiator amount. And it increases initially with the increasing of the active diluents amount, while decreases at higher concentrations. Compared with thermal curing, UV-curing technology can greatly shorten the curing time, while the mechanical properties of the UV-cured products are favorable. The research results have great significance for the application of UV-curing technology in the practical production.

引用

页码：1424 / 1432

页数：8

共 17 条

[1]

Wang D.H., Jiang L., UV-curing Material: Theory and Application, pp. 6-7, (2001)

[2]

Wei J., Jin Y.Z., UV-curing Coatings, pp. 4-5, (2005)

[3]

Nie J., He Y., Sun M.Z., Progress in cationic UV-curing, Coatings Technology & Abstracts, 28, 10, pp. 1-4, (2007)

[4]

Golaz B., Michaud V., Leterrier Y., Et al., UV intensity, temperature and dark-curing effects in cationic photo-polymerization of a cycloaliphatic epoxy resin, Polymer, 53, 10, pp. 2038-2048, (2012)

[5]

Tehfe M.A., Lalevee J., Morlet-Savary F., Et al., Near UV-visible light induced cationic photopolymerization reactions: a three component photoinitiating system based on acridinedione/silane/iodonium salt, European Polymer Journal, 46, 11, pp. 2138-2144, (2010)

[6]

Bulut U., Kolay M., Tarkuc S., Et al., Quinoxaline derivatives as long wavelength photosensitizers in photoinitiated cationic polymerization of diaryliodonium salts, Progress in Organic Coatings, 73, 2, pp. 215-218, (2012)

[7]

Sangermano M., Messori M., Rizzoli A., Et al., UV-cured epoxy coatings modified with perfluoropolyether-based materials, Progress in Organic Coatings, 68, 4, pp. 323-327, (2010)

[8]

Putzien S., Louis E., Nuyken O., Et al., UV curing of epoxy functional hybrid silicones, Journal of Applied Polymer Science, 126, 4, pp. 1188-1197, (2012)

[9]

Park H.J., Ryu C.Y., Crivello J.V., Photoinitiated cationic polymerization of limonene 1, 2-oxide and α-pinene oxide, Journal of Polymer Science Part A: Polymer Chemistry, 51, 1, pp. 109-117, (2013)

[10]

Wang X.W., Li F.F., Ren N., Et al., UV-curing of hydrogenated bisphenol A based epoxy resin and its composites, Journal of Lanzhou Jiaotong University, 31, 3, pp. 171-176, (2012)

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