Low-volatility and low-curing heat release liquid acrylate thermoplastic resin and preparation method thereof

By introducing high-ultraviolet absorption monomers and using ultraviolet-heating prepolymerization treatment technology, a liquid acrylate-based thermoplastic resin with low volatility and low curing and exothermic heat was prepared, which solved the problems of volatile and explosive polymerization of existing resins, and significantly improved the processability and mechanical properties.

CN119638883AActive Publication Date: 2025-03-18WUHAN UNIV OF TECH
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Patent Information

Application Number
CN202411884736.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-18
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

The existing liquid acrylate resins are prone to volatilization and explosively aggregated during the preparation and molding process, resulting in poor processability, which limits its further development and application.

Method used

By introducing high-ultraviolet absorption monomers and using ultraviolet-heating prepolymerization technology, a low-volatilization, low-curing and exothermic liquid acrylate thermoplastic resin is prepared. The method includes mixing the methacrylate monomer with the high-ultraviolet absorbing monomer, subjecting ultraviolet irradiation and heating and stirring, generating a photothermal activated modified resin prepolymer, and adding an oxygen polymer inhibitor and acrylic monomer in the subsequent steps for further processing.

Benefits of technology

It significantly reduces the volatility and curing heat exogenous of liquid acrylate resin, improves processability, avoids explosive aggregates, shortens the curing cycle, and improves the mechanical properties of the resin.

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Abstract

A preparation method of the low-volatility and low-curing heat release liquid acrylate thermoplastic resin comprises the following steps: firstly, taking a methacrylate monomer and a high ultraviolet absorption monomer as main raw materials, and performing ultraviolet radiation under heating and stirring conditions to obtain a photo-thermal activated and modified liquid acrylate resin prepolymer; and adding an oxygen polymerization inhibitor and an acrylic monomer, and heating and stirring to obtain the low-volatility and low-curing heat release liquid acrylate thermoplastic resin. According to the invention, the methacrylate monomer and the high ultraviolet absorption monomer are introduced, and ultraviolet light is combined with heating to activate prepolymerization means, so that uniform and controllable polymerization of the resin can be realized in subsequent normal-temperature curing, the manufacturability of the liquid acrylate resin is improved, the volatility and curing heat release of the resin are reduced, and the curing period is effectively shortened; and a new thought can be provided for preparation of high-performance plastic resin.
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