Optimal Resistance of Acrylic Glass Using Epoxy Coating

Document Type : Original Article

Authors

1 Department of Mechanical Engineering, Faculty of Chamran, Guilan Branch, Technical and Vocational University (TVU) ,Tehran, Iran,

2 Faculty Member, Chemical Engineering, Faculty of Chamran, Guilan Branch, Technical and Vocational University. (TVU), Tehran, Iran.

Abstract

In recent years, the use of transparent polymers in fields such as optical applications and car glass has become common. Among these transparent polymers, poly (methyl methacrylate) is one of the most well-known and widely used plastics with excellent light-transmitting properties, which is used to make glass. The main disadvantage of acrylic glass is its scratch resistance which is often affected by storage conditions, transportation, and molding process, reducing the quality of polymer glass and thus its performance and longevity. For this purpose, glycidoxypropyl trimethoxysilane resin was used as an additive in the amount of 0.5 and 1% by weight to improve surface properties. To investigate the effect of epoxy resin coating and silane additive (as friction reducing agents) on scratch and abrasion resistance, hardness test, pencil hardness test, scratch resistance, abrasion and wash, friction coefficient and Taber abrasion were carried out. The results obtained by applying epoxy coating on poly (methyl methacrylate) sheets, while maintaining transparency, improved scratch and abrasion resistance by 28 and 200%, respectively. Although the application of epoxy coating slightly increased the coefficient of friction, the use of silane additive compensated for this shortcoming and reduced the coefficient of friction, and improved the abrasion and scratch resistance by more than 50%. It was also observed that the use of epoxy coatings and additives that improve surface properties did not have a negative effect on transparency and light transmission.

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References

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Karafan Quarterly Scientific Journal
Volume 19, Issue 3 - Serial Number 59
Technical and Engineering
December 2022
Pages 97-113

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History

  • Receive Date: 15 October 2021
  • Revise Date: 08 April 2023
  • Accept Date: 22 November 2021

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