Ms. Shuangshuang Meng Profile

Shuangshuang Meng

at Hebei Univ

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Proceedings Article | 18 November 2008 Paper

Investigation of UV photocurable microcapsule inner crosslink extent

Xiaowei Li, Shuangshuang Meng, Weidong Lai, Haiyang Yu, Guangsheng Fu

Proceedings Volume 7135, 71353Q (2008) https://doi.org/10.1117/12.803325

KEYWORDS: Absorption, Ultraviolet radiation, Solids, Photopolymerization, Light sources, Lamps, Mercury, UV optics, Curium, Polymers

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UV photocuring technology has encountered increased applications in recent years, which finds a variety of applications on protective coating of the optical-fiber, ink and optical recording materials. Combined with techniques of photohardenable, microcapsule, heat-sensitive and interface-polymerization method, a novel photoheat sensitive recording material of non-silver salt is explored in this thesis. Microcapsules are particulate substance with a core and shell structure, where photopolymerizable composition, monofunctional/polyfunctional diluents, photopolymerization initiator, photosensitivity enhancing agent and dye precursor are encapsulated as the internal phase. In this paper introduced the characteristics and curing mechanism of photo-sensitive microcapsule materials. The photocuring process may be a complex-function with photopolymerizable compound and photopolymerization initiator. For the sake of high photocuring speed and degree, optimal photo-sensitive materials were selected. In order to match with the light source excitation wavelength and absorb more wider ultraviolet band, combined type of photo-polymerization initiators were employed. With the kinds and dosage of photopolymerization initiator changing, the photocuring speed and quality can be ameliorated. Through studying the UV-visible absorption spectrum and infra-red spectrum of the material , the optical response property of the inner compound can be obtained.

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