Image density property of optical information recording microcapsule material

Weidong Lai; Xiaowei Li; Xinzheng Li; Guangsheng Fu

doi:10.1117/12.830801

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20 May 2009 Image density property of optical information recording microcapsule material

Weidong Lai, Xiaowei Li, Xinzheng Li, Guangsheng Fu

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Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 72820J (2009) https://doi.org/10.1117/12.830801
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

The microcapsules can act as novel optical functional material in which the optical recording substance such as color-forming substance, photoinitiator and prepolymer are encapsulated. In this paper, the microcapsules with average particle diameter of 300nm are prepared with interfacial polymerization method. The optical responding character of the microcapsule is analyzed based on IR spectra and image density technique. Results show that the microcapsule material encapsulated prepolymer TMPTA and photoinitiator Irgacure-ITX, TPO has thermal phase-change at 140°C, at which the penetrability of the microcapsule has the highest efficiency. With the increase of exposure time, the reduction in absorption intensities of the prepolymer TMPTA are observed at 1635cm^-1 of C=C stretching and 898cm^-1 of C-H stretching on the C=C molecular bond. Such a result can be ascribed to the double bond cleavage process of the prepolymer TMPTA is initiated by the optical-exposed photoinitiator, and superpolymer network is formed. The image density contrast between the unexposed and exposed microcapsule is enhanced with exposure time increased.

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Weidong Lai, Xiaowei Li, Xinzheng Li, and Guangsheng Fu "Image density property of optical information recording microcapsule material", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72820J (20 May 2009); https://doi.org/10.1117/12.830801

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