Finishing Properties of Bleached and Unbleached Bio-polyurethane Wood Coating
Redzuan Mohammad Suffian James,
Paridah Md Tahir,
Norwahyuni Mohd Yusof,
Syeed Saifulazry Osman al-Edrus,
Zurina Zainal Abidin,
Mohd Khairun Anwar Uyup,
Petar Antov,
Widya Fatriasari,
Seng Hua Lee
Affiliations
Redzuan Mohammad Suffian James
Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
Paridah Md Tahir
Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia; Faculty of Forestry and Environment, UPM, 43400 Serdang, Selangor, Malaysia; Malaysia
Norwahyuni Mohd Yusof
Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
Syeed Saifulazry Osman al-Edrus
Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia
Zurina Zainal Abidin
Department of Chemical and Environmental Engineering, Faculty of Engineering, UPM, Serdang 43400, Selangor, Malaysia
Mohd Khairun Anwar Uyup
Forest Products Division, Forest Research Institute Malaysia (FRIM), 52109 Kepong, Selangor, Malaysia
Petar Antov
Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria
Widya Fatriasari
Research Center for Biomass and Bioproducts, National Research and Innovation Agency (BRIN), Jl Raya Bogor KM 46, 16911 Cibinong, Bogor, Indonesia
Seng Hua Lee
Department of Wood Industry, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Cawangan Pahang Kampus Jengka, 26400 Bandar Tun Razak, Pahang; Institute for Infrastructure Engineering and Sustainable Management (IIESM), Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
To obtain a more appealing wood coating with lighter color, bleaching treatment was employed. Bleached and unbleached bio-polyurethane (PU) coating was prepared using liquefied bamboo and was applied to rubberwood. The coated wood surface was examined for adhesion, scratch, abrasion, impact, and resistance to common household chemicals. The results revealed that the bleaching of liquefied bamboo exerted mixed effects on the finishing properties of the bio-PU coating. Specifically, the surface coated with unbleached bio-PU coating exhibited noticeably higher levels of scratch and impact resistance compared to the surface coated with bleached bio-PU coating. However, both the adhesion and abrasion properties were found to be similar in both cases. Both bleached and unbleached bio-PU coating exhibited similar resistance to various household chemicals, with exception of acetic acid. This research demonstrated a method for producing semi-transparent bio-PU from bamboo biomass for use in wood coating. Bleaching treatment is feasible to produce light-colored coating without significantly affecting the finishing properties of the bio-PU coating.
