title: Recycling of waste automotive laminated glass and valorization of polyvinyl butyral through mechanochemical separation.
abstract: Due to strong binding, optical clarity, adhesion to many surfaces, toughness and flexibility polyvinyl butyral (PVB) resin films are commonly used in the automotive and architectural application as a protective interlayer in the laminated glass. Worldwide million tons of PVB waste generated from end-of-life automotive associated with various environmental issues. Stringent environmental directive, higher land cost eliminates land filling option, needs a study, we have developed a mechanochemical separation process to separate PVB resins from glass and characterized the separated PVB through various techniques, i.e., scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS), infrared spectroscopy (IR) and nuclear magnetic resonance spectroscopy (NMR). Commercial nonionic surfactants D201 used for the mechanochemical separation purpose. Through parameter optimization following conditions are considered to be the optimum condition; 30v ol% D201, stirring speed of 400 rpm, 35 °C temperature, operation time 1h, and dilute D201 volume to waste automotive laminated glass weight ratio of ≈25. The technology developed in our laboratory is sustainable, environmentally friendly, techno-economical feasible process, capable of mass production (recycling).
authors: Institute for Advanced Engineering (IAE), Advanced Materials & Processing Center, Yongin-Si 449-863, Republic of Korea. Electronic address: swain@iae.re.kr.
authors: Basudev
authors: B
authors: Swain
authors: Institute for Advanced Engineering (IAE), Advanced Materials & Processing Center, Yongin-Si 449-863, Republic of Korea.
authors: Jae
authors: J
authors: Ryang Park
authors: Institute for Advanced Engineering (IAE), Advanced Materials & Processing Center, Yongin-Si 449-863, Republic of Korea.
authors: Dong
authors: D
authors: Yoon Shin
authors: Institute for Advanced Engineering (IAE), Advanced Materials & Processing Center, Yongin-Si 449-863, Republic of Korea.
authors: Kyung-Soo
authors: KS
authors: Park
authors: Institute for Advanced Engineering (IAE), Advanced Materials & Processing Center, Yongin-Si 449-863, Republic of Korea.
authors: Myung
authors: M
authors: Hwan Hong
authors: Institute for Advanced Engineering (IAE), Advanced Materials & Processing Center, Yongin-Si 449-863, Republic of Korea. Electronic address: cglee@iae.re.kr.
authors: Chan
authors: C
authors: Gi Lee
mesh_terms: D001336:Automobiles; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D005898:Glass; D008855:Microscopy, Electron, Scanning; D011145:Polyvinyls / Q000737:chemistry*; D059027:Recycling; D056910:Republic of Korea; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D004785:Environmental Pollutants; D011145:Polyvinyls; C027464:polyvinylbutyral
keywords: Automotive waste; Laminated glass recycling; Mechanochemical separation; PVB recycling