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Natural weathering’s effect on mechanical properties of short cycle coconut trunk lumber impregnated using kraft black liquor
Dungani R.a, Karliati T.a, Hadiyane A.a, Tanaka T.b, Yamada M.b, Hartati S.c, Dewi M.a, Malik J.d
a School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Faculty of Agriculture, Shizuoka University, Shizuoka, 422-8529, Japan
c Faculty of Agriculture, Universitas Padjadjaran, Bandung, 45363, Indonesia
d Forestry Products Research and Development Center, Ministry of Environment and Forestry Indonesia, Bogor, 16610, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020, North Carolina State University.The weathering resistance properties of short cycle coconut trunk lumber (SC-CTL) were evaluated in response to impregnation using kraft black liquor (BL) and black liquor/phenol formaldehyde (BL/PF) resin. Concentrations of 10, 15, 20, and 25% w/w kraft BL and PF resin with BL were impregnated into SC-CTL using a vacuum-pressure method. Natural weathering tests lasting 6 and 12 months were performed according to ASTM D1435 (1999). After the prescribed testing period, samples were analyzed for their morphological changes via FT-IR and SEM. Mechanical tests were conducted to analyze changes caused by natural weathering in impregnated SC-CTL. The results showed that BL with PF resin impregnation into SC-CTL improved the resistance against natural weathering. The SEM study confirmed that fungi could not colonize the treated samples. The results also suggested that addition of 20% BL in PF resin was sufficient to inhibit weathering. Thus, it was concluded that impregnation of PF resin with BL is a good method to improve the mechanical properties of SC-CTL.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Black liquor,Good methods,Kraft black liquor,Morphological changes,Natural weathering,Resin impregnation,Vacuum pressure,Weathering resistance[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Black liquor,Coconut wood,Mechanical properties,Morphological,Natural weathering[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][{‘$’: ‘The authors would like to thank the Ministry of Research, Technology and High Education (RISTEKDIKTI), Indonesia, for providing Research Grant No. 2/E1/KP.PTNBH/2019. The authors would also like to thank the Faculty of Agriculture, Shizuoka University, Japan for providing the necessary facilities for testing.’}, {‘$’: ‘The authors would like to thank the Ministry of Research, Technology and High Education (RISTEKDIKTI), Indonesia, for providing Research Grant No. 2/E1/KP. PTNBH/2019. The authors would also like to thank the Faculty of Agriculture, Shizuoka University, Japan for providing the necessary facilities for testing.’}][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.15376/biores.15.2.3821-3838[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]