Application of Formaldehyde Free Adhesive in Composite Floor

Abstract

With the enhancement of consumers' concept of "health and environmental protection", the requirements for the living environment are higher and higher, and the quality of home decoration materials has attracted much attention. The green adhesive without formaldehyde has become a research and application hotspot in recent years, and has been more and more widely used in the composite floor industry. Composite floor is an indispensable building material with large application area in residential decoration. The selection and use of adhesives directly determine the environmental protection grade of composite floor. Biomass adhesives, polyurethane adhesives and thermoplastic resin adhesives represented by soybean adhesives are the three types of aldehyde free adhesives with the greatest development potential in composite floor industry at present. This paper reviews the application of aldehyde free adhesives such as polyurethane (including isocyanate) adhesives, waterborne polymer isocyanate adhesives, polyethylene films, soybean protein adhesives and polyvinyl acetate adhesives in solid wood composite floors and paper impregnated laminated wood floors (laminate floor), bamboo floor and other common composite floors, discusses the existing problems, and looks forward to the main research and development direction in the future.