6 Wettability of keruing (Dipterocarpus spp.) wood after weathering under tropical climate
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Mohd Khairun Anwar Uyup
Abstract
Exposure of unprotected wood to weathering can increase the wettability of the wood and the exposure period should be carefully monitored to preserve surface quality from severe deterioration. This study investigated the wettability of keruing (Dipterocarpus spp.) wood after weathering exposure for 1-4 weeks. The keruing samples were first planed and coated at the edges prior to expose under tropical climate. Contact angle, crack formation and lignin content of the samples were recorded on weekly basis. The results showed that the wettability of weathered keruing wood increased tremendously (i.e., 32%) after 4 weeks of exposure compared to control samples. The increase in wettability can be associated with the increase in crackformation and reduction of lignin content after exposure. It is hereby recommended that keruing wood is not suitable to be exposed to weather for more than 3 weeks before finishing or coating is applied on its surface.
Abstract
Exposure of unprotected wood to weathering can increase the wettability of the wood and the exposure period should be carefully monitored to preserve surface quality from severe deterioration. This study investigated the wettability of keruing (Dipterocarpus spp.) wood after weathering exposure for 1-4 weeks. The keruing samples were first planed and coated at the edges prior to expose under tropical climate. Contact angle, crack formation and lignin content of the samples were recorded on weekly basis. The results showed that the wettability of weathered keruing wood increased tremendously (i.e., 32%) after 4 weeks of exposure compared to control samples. The increase in wettability can be associated with the increase in crackformation and reduction of lignin content after exposure. It is hereby recommended that keruing wood is not suitable to be exposed to weather for more than 3 weeks before finishing or coating is applied on its surface.
Chapters in this book
- Frontmatter I
- About the editors V
- Preface IX
- Contents XI
- List of contributing authors XIX
- 1 Polybutylene succinate (PBS)/natural fiber green composites: melt blending processes and tensile properties 1
- 2 Material selection and conceptual design in natural fibre composites 15
- 3 Amine compounds post-treatment on formaldehyde emission and properties of urea formaldehyde bonded particleboard 27
- 4 Manufacturing defects of woven natural fibre thermoset composites 39
- 5 Manufacturing defects and interfacial adhesion of Arenga Pinnata and kenaf fibre reinforced fibreglass/kevlar hybrid composite in boat construction application 57
- 6 Wettability of keruing (Dipterocarpus spp.) wood after weathering under tropical climate 67
- 7 Mechanical performance and failure characteristics of cross laminated timber (CLT) manufactured from tropical hardwoods species 77
- 8 Constructing a framework for selecting natural fibres as reinforcements composites based on grey relational analysis 87
- 9 Thermal properties of wood flour reinforced polyamide 6 biocomposites by twin screw extrusion 99
- 10 Characterization of lignocellulosic S. persica fibre and its composites: a review 111
- 11 An overview of mechanical and corrosion properties of aluminium matrix composites reinforced with plant based natural fibres 131
- 12 Physical and mechanical properties of Acacia mangium plywood after sanding treatment 161
- 13 Effect of sugarcane bagasse on thermal and mechanical properties of thermoplastic cassava starch/beeswax composites 171
- 14 The properties of 3D printed poly (lactic acid) (PLA)/poly (butylene-adipate-terephthalate) (PBAT) blend and oil palm empty fruit bunch (EFB) reinforced PLA/PBAT composites used in fused deposition modelling (FDM) 3D printing 187
- 15 Properties of plybamboo manufactured from two Malaysian bamboo species— 205
- 16 Fundamental study of commercial polylactic acid and coconut fiber/polylactic acid filaments for 3D printing 215
- 17 Flexural analysis of hemp, kenaf and glass fibre-reinforced polyester resin 231
- 18 Effect of stacking sequence on tensile properties of glass, hemp and kenaf hybrid composites 247
- 19 Investigation on impact properties of different type of fibre form: hybrid hemp/ glass and kenaf/glass composites 259
- Index 277
Chapters in this book
- Frontmatter I
- About the editors V
- Preface IX
- Contents XI
- List of contributing authors XIX
- 1 Polybutylene succinate (PBS)/natural fiber green composites: melt blending processes and tensile properties 1
- 2 Material selection and conceptual design in natural fibre composites 15
- 3 Amine compounds post-treatment on formaldehyde emission and properties of urea formaldehyde bonded particleboard 27
- 4 Manufacturing defects of woven natural fibre thermoset composites 39
- 5 Manufacturing defects and interfacial adhesion of Arenga Pinnata and kenaf fibre reinforced fibreglass/kevlar hybrid composite in boat construction application 57
- 6 Wettability of keruing (Dipterocarpus spp.) wood after weathering under tropical climate 67
- 7 Mechanical performance and failure characteristics of cross laminated timber (CLT) manufactured from tropical hardwoods species 77
- 8 Constructing a framework for selecting natural fibres as reinforcements composites based on grey relational analysis 87
- 9 Thermal properties of wood flour reinforced polyamide 6 biocomposites by twin screw extrusion 99
- 10 Characterization of lignocellulosic S. persica fibre and its composites: a review 111
- 11 An overview of mechanical and corrosion properties of aluminium matrix composites reinforced with plant based natural fibres 131
- 12 Physical and mechanical properties of Acacia mangium plywood after sanding treatment 161
- 13 Effect of sugarcane bagasse on thermal and mechanical properties of thermoplastic cassava starch/beeswax composites 171
- 14 The properties of 3D printed poly (lactic acid) (PLA)/poly (butylene-adipate-terephthalate) (PBAT) blend and oil palm empty fruit bunch (EFB) reinforced PLA/PBAT composites used in fused deposition modelling (FDM) 3D printing 187
- 15 Properties of plybamboo manufactured from two Malaysian bamboo species— 205
- 16 Fundamental study of commercial polylactic acid and coconut fiber/polylactic acid filaments for 3D printing 215
- 17 Flexural analysis of hemp, kenaf and glass fibre-reinforced polyester resin 231
- 18 Effect of stacking sequence on tensile properties of glass, hemp and kenaf hybrid composites 247
- 19 Investigation on impact properties of different type of fibre form: hybrid hemp/ glass and kenaf/glass composites 259
- Index 277
