Biobased-interlayer glass composite with improved mechanical properties and ultraviolet radiation shielding

This paper reports a biobased-interlayer glass composite that augments the flexural strength and stiffness of glass and Ultraviolet protection. The benign interlayer consists of polyvinyl alcohol, lignin, and citric acid as a crosslinker. The interlayer was doctor bladed on soda-lime glass, encrusted by a second glass, dried, then heat -treated to warrant its strength and durability. Three-point bending tests disclosed an improvement in flexural strength (53.1%), flexural strain (43.1%), and flexural stiffness (9.4%) in contrast to the pristine glass. Furthermore, the laminated glass effectively shields broadband Ultraviolet radiation and concurrently displays outstanding transparency over 75% in the visible range. This research offers an innovative design approach for robust Ultraviolet shielding and strengthening of glass in a facile and cost-effective manner. Future applications of this novel composite include greenhouse cover, automobile windshields, security, and museum artwork.

Automated summary

This paper reports a biobased-interlayer glass composite that enhances the flexural strength and stiffness of glass while providing UV protection. The composite consists of benign materials and demonstrates improved mechanical properties compared to pure glass. It also effectively shields UV radiation and maintains high transparency in the visible range. This novel composite has potential applications in various fields such as greenhouse cover, automobile windshields, security, and museum artwork.