一种通过酯交换反应制备高抗银纹性透明有机玻璃的方法

High-resistance transparent acrylic glass with silver crazing was prepared by transesterification reaction. The copolymerization of methyl methacrylate, hydroxyethyl methacrylate and initiator formed a slightly cross-linked three-dimensional network structure, which solved the problem of insufficient silver crazing resistance in the existing technology and achieved efficient and low-cost material improvement.

CN119060242BActive Publication Date: 2026-07-17ZHEJIANG SCI-TECH UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG SCI-TECH UNIV
Filing Date
2024-09-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively improve the anti-silvering properties of plexiglass while avoiding the negative impacts of increased internal residual stress and optical properties, and the manufacturing process is either cumbersome or costly.

Method used

High-resistance transparent acrylic glass with silver ripple resistance is prepared by transesterification reaction. The copolymerization of methyl methacrylate, hydroxyethyl methacrylate and initiator forms a slightly cross-linked three-dimensional network structure, which controls the transesterification reaction rate, avoids the risk of explosive polymerization, and simplifies the preparation process.

Benefits of technology

It significantly improves the anti-silvering properties, optical transparency, and mechanical strength of plexiglass, reduces internal residual stress, simplifies the manufacturing process, and lowers energy consumption costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种通过酯交换反应制备高抗银纹性透明有机玻璃的方法,通过甲基丙烯酸甲酯和甲基丙烯酸羟乙酯的自由基共聚反应合成共聚物,并利用共聚物中侧链羟基和侧链酯基之间的酯交换反应,形成稳定的共价键交联的三维网络结构,从而获得抗银纹性突出,光学透明性、机械强度和韧性均优的透明有机玻璃。本发明本体浇铸工艺制备,抗银纹性能突出,光学透明性、机械强度和韧性均优于机玻璃,且制备工艺简单易行,可成功避免预聚浆液阶段的暴聚风险,确保全生产过程的聚合体系稳定。
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