Method for preparing modified polymethyl methyl acrylate material and the material

Abstract

The invention relates to a preparation process of modified polymethyl methyl acrylate material, which comprises firstly washing PMMA in NaOH and acetone solution in turn for 2-3 times through an ultrasonic cleaner, removing grease and dirt on the surface, drying with a vacuum drying box for backup, and then directly depositing titanium dioxide precursor solution on the surface of polymethyl methyl acrylate material through the bionic film-forming technology. The technology aims to prepare self-cleaning polymethyl methyl acrylate material which has anti-aging, wear resistance surface and anti-fog and sterilization through combining with the characteristics of polymethyl methyl acrylate and titanium dioxide, and utilizing the titanium dioxide characteristics of wear resistance, absorbing ultraviolet light, and sterilization and antibiosis and dirt-preventing and self-cleaning on the surface under the irradiation of lights, thereby expanding application ranges.

Description

This invention patent application is a divisional application with the filing date of April 14, 2006, application number 200610018801.6, name: modified polymethyl methacrylate material and its preparation method. technical field The invention relates to a modified polymethyl methacrylate (PMMA) material and a preparation method thereof, specifically coating a layer of titanium dioxide nano-film on the surface of PMMA to improve certain properties and expand its application field technology . Background technique Polymethyl methacrylate (PMMA) is a very important kind of transparent polymer materials, commonly known as plexiglass. It has many excellent properties, such as good chemical stability, balanced physical and mechanical properties, good processing performance, weather resistance, electrical insulation, excellent optical properties, light transmittance is more than 10% higher than ordinary inorganic glass, and light weight Toughness, etc., so it is widely used in m...

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Problems solved by technology

However, the use temperature of PMMA is low (65°C), poor heat resistance (thermal decomposition temperature ≤ 200°C), low surface hardness, and it is easily affected by ultraviolet rays in the sun and aging during use, which limits its application range.

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