Photocured organosilicone elastomer and preparation method and application thereof

A technology of elastomer and silicone, which is applied in the field of light-cured silicone elastomer and its preparation, can solve the problems of poor mechanical properties of light-cured elastomers, poor mechanical properties of transparent materials, and affecting the optical properties of materials, etc. Effect of curing rate, increasing crosslink density and mechanical strength, improving mechanical properties
CN106317898AInactive Publication Date: 2017-01-11GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2017-01-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a photocured organosilicone elastomer and a preparation method thereof. The photocured organosilicone elastomer is prepared from, by weight, 50-80 parts of vinyl methyl phenyl polysiloxane, 10-30 parts of mercaptopropyl methyl phenyl polysiloxane, 5-20 parts of mercaptopropyl silicon resin, 0-3 parts of photoinitiator and 0.1-1 part of auxiliary. Vinyl methyl phenyl polysiloxane, mercaptopropyl methyl phenyl polysiloxane, mercaptopropyl silicon resin and the photoinitiator are used as raw materials and mixed and stirred to be uniform, and the photocured organosilicone elastomer is prepared. By adjusting the quantity ratio of methyl segmers and phenyl segmers in polysiloxane and introducing mercaptopropyl silicon resin to serve as a macromolecular cross-linking agent, photocured organosilicone elastomers different in toughness, mechanical strength and refractive index can be prepared, and rapid curing molding is realized within 5-20 s under ultraviolet illumination; the process is simple, efficient and environmentally friendly and saves energy; the photocured organosilicone elastomer can be applied to the fields of electronic packaging materials, optical materials, 3D printing materials and the like.
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Description

technical field

[0001] The invention belongs to the technical field of functional polymer materials, and more specifically relates to a photocurable silicone elastomer and its preparation method and application. Background technique

[0002] At present, photocurable silicone elastomers are mainly cation-cured epoxy groups or free-radical-curable acrylate groups in polysiloxane molecular segments, or photoactive Pt catalyzed reactions, Or mercapto-ene click reaction to prepare. In CN104559196 and CN105131613, optically active Pt catalysts are used to prepare addition-type photocurable silicone rubber, but because the Pt catalyst is expensive, the curing speed is relatively slow, and it is easy to be poisoned and deactivated, so it is not conducive to wide application and production. CN105331115 and CN103554500 use acryloxy-containing organosilicon prepolymers to light-cure transparent silicone resin composite materials, and CN104004491 uses acrylated organopolysilanes to pre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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