Effect of PVDC on the Fire Performance of Ultra-Low Density Fiberboards (ULDFs)
Zhenzeng Wu,
Tingjie Chen,
Daobang Huang,
Wei Wang,
Yongqun Xie,
Hui Wang,
Xiaodong (Alice) Wang
Affiliations
Zhenzeng Wu
Department of Material Engineering, Fujian Agriculture and Forestry University; China
Tingjie Chen
Department of Material Engineering, Fujian Agriculture and Forestry University, 350002, Fuzhou, Fujian; Division of Wood Technology and Engineering, Luleå University of Technology, 93187, Forskargatan 1, Skellefteå, Sweden; China
Daobang Huang
Department of Material Engineering, Fujian Agriculture and Forestry University, 350002, Fuzhou, Fujian; China
Wei Wang
Department of Material Engineering, Fujian Agriculture and Forestry University, 350002, Fuzhou, Fujian; China
Yongqun Xie
Department of Material Engineering, Fujian Agriculture and Forestry University, 350002, Fuzhou, Fujian; China
Hui Wang
Department of Forest Products, Mississippi State University, P. O. Box 9800, Starkville, MS 39759-9820 USA; United States
Xiaodong (Alice) Wang
Division of Wood Technology and Engineering, Luleå University of Technology, 93187, Forskargatan 1, Skellefteå, Sweden; Sweden
Poly vinylidene chloride-vinyl chloride emulsions (PVDC) were added as a substitute for chlorinated paraffin (CP) in the preparation of ultra-low density fiberboards (ULDFs). The micromorphology and fire performance of ULDFs were investigated using a scanning electron microscope, limiting oxygen index instrument, and cone calorimeter. The results showed that PVDC specimens were coated with a regularly smooth film, while the distribution of CP inside CP specimens was uneven. The limiting oxygen index increased with the dosage of PVDC, then reached a plateau at 50 mL and 28%, slightly higher than CP specimens (27.3%). The peak of heat release rate, mean heat release rate, mean CO, and total smoke release of PVDC specimens was reduced 43.3%, 13.5%, 38.5%, and 51.5% lower than respective CP specimens, and with nearly the same total heat release (only 0.04 MJ/m2 higher). Thus, PVDC exhibited excellent heat-reducing and smoke-suppressing properties and could replace CP in ULDFs.
