Experimental Research on the Durability of WPC Wallboard Made of Paper-Aluminum-Plastics Wastes

Abstract

Waste Paper-Al-Plastic materials including Tetrapak beverage and milk boxes are used to extrude the WPC instead of normal wood fiber material in this research. As many WPC products are applied as exterior wallboard at present, the research on the durability and flame retardancy of Wood-Plastic Composites is important. In this paper, various durability influences and flame retardancy of WPC are analyzed in the laboratory conditions. Some experimental results are presented as follow: Water absorption of WPC is influenced by immersion time. After immersion of simulated acid rain solution and alkali environment, and accelerated ultraviolet radiation tests, WPC samples are observed with banding strength decrease. Nonetheless, the performances of WPC wallboard achieve the requirements of national code when it is properly provided with anticorrosion coating systems. Oxygen index of 27 indicates that WPC is inflammable material. Zinc borate (ZB) and ammonium polyphosphate (APP) are effective flame retardant for Paper-Al-Plastic WPC.

Waste Tetra Pak containers and its use in construction materials

“…In other study, wood plastic composites with waste Tetra Pak containers had results of 10.2% for water absorption and 7.2% for swelling (Gao et al, 2011).…”

Bio-Based Flame-Retardant and Smoke-Suppressing Wood Plastic Composites Enabled by Phytic Acid Tyramine Salt

“…In this context, according to the reduce, reuse, and recycle policy of the circular economy, , using bio-based chemicals and recycling waste plastics can address this issue. Wood–plastic composites (WPCs) are a new class of environmentally friendly and green materials, which are fabricated from recycled plastic and wood-processing wastes. − WPCs possess the advantages of wood as well as plastics and are widely used as outdoor construction and building materials owing to their unique characteristics, such as good dimensional stability, corrosion resistance, favorable processability, and low maintenance costs. , However, WPCs are easily ignited with huge heat release owing to the presence of highly combustible plastics and wood flour. − Considering that the primary chemical constituents of wood flour, which is a main component of WPCs, are cellulose, hemicellulose, and lignin, wherein the cellulose and hemicellulose contents are relatively high, it is extremely easy to burn WPCs. In addition, the high calorific value of plastics contributes to the extremely flammable characteristics of WPCs, leading to potential fire risks and hazards.…”

Experimental Research on the Thermal Insulation and Flame Retardancy Performance of WPC Wallboard Made of Paper-Aluminum-Plastics Wastes

“…In this research, the waste Paper-Al-Plastic materials are used to extrude the WPC instead of normal wood fiber material. It has even better environmental protection performance than normal WPC, figure 1 and 2 shows the material and extruding processing of WPC [2].…”