Mr. Xin Jia Profile

Xin Jia

at Xi'an Institute of Optics and Precision Mechanics

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Proceedings Article | 15 February 2022 Paper

Study on adhesive curing process and bonding property of XM-31 silicone rubber

Xiangke Zheng, Peng Wang, Shifa Kang, Zhanjun Duan, Xin Jia, Linsen Shu

Proceedings Volume 12166, 121660R (2022) https://doi.org/10.1117/12.2606857

KEYWORDS: Adhesives, Optical components, Mirrors, Solids, Silicon, Stars, Temperature metrology, Liquids, Standards development

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In order to obtain the microstress bonding curing process and its properties of precision optical components, various curing process schemes of XM-31 adhesive were designed and tested. Firstly, a mirror group simulation structure and hardness testing tool were developed to study the effect of the amount of six vulcanizing agents on the solidification rate of XM-31 adhesive. Secondly, the XM-31 adhesive with the best amount of curing agent was solidified under different temperature conditions.Densitometer, stretch machine, hardness tester and microscope were used to test the material properties of XM-31 adhesive after curing, so as to obtain the bonding performance of XM-31 adhesive under different solidification temperature conditions.Finally, the optimized process is applied to the bonding of optical elements in a star - sensitive lens. The results show that the optimum ratio of matrix adhesive and vulcanizing agent of XM-31 adhesive is 100:3 ~ 100:4. The volume shrinkage rate of XM-31 adhesive under four curing temperatures were 1.82%, 1.75%, 1.63% and 1.43%, respectively. The curing temperature will significantly improve the adhesive process efficiency, but the adhesive strength and hardness will be reduced. The surface shape index PV and RMS value of a certain type of star sensitive lens can meet the design requirements, when using the preferred process of XM-31 adhesive assembly.

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