Published Date
Original article
Cite this article as:
Fang, L., Xiong, X., Wang, X. et al. J Wood Sci (2016). doi:10.1007/s10086-016-1589-9
Author
To improve interfacial adhesion between wood veneer and high-density polyethylene (HDPE) film, wood veneer was thermally modified in an oven or chemically modified by vinyltrimethoxysilane. The wood veneers were used to prepare plastic-bonded wood composites (PBWC) in a flat-press process using HDPE films as adhesives. The results showed that both modifications reduced veneer hydrophilicity and led to enhancement in shear strength, wood failure, and water resistance of the resulting PBWC. The thermal treatment significantly decreased the storage modulus close to 130 °C (the melting temperature of plastic). Thermal-treated wood veneer maintains mechanical interlocking for bonding and veneer strength which then declined under thermal treatment due to hemicellulose degradation and cellulose de-polymerization. In the silane-treated PBWC, enhanced interlocking and a stronger bonding structure resulted from the reaction between the silane-treated veneer and HDPE. This strong bonding structure allowed thermal stability improvement demonstrated by high modulus and low tanδ values. However, the strength of silane-treated PBWC was still much lower than thermosetting resin-bonded composites at higher temperatures due to the melting behavior of thermoplastic polymer, precluding its use in certain applications.
References
For further details log on website :
http://link.springer.com/journal/10086
Original article
- First Online:
- 13 October 2016
DOI: 10.1007/s10086-016-1589-9
Author
To improve interfacial adhesion between wood veneer and high-density polyethylene (HDPE) film, wood veneer was thermally modified in an oven or chemically modified by vinyltrimethoxysilane. The wood veneers were used to prepare plastic-bonded wood composites (PBWC) in a flat-press process using HDPE films as adhesives. The results showed that both modifications reduced veneer hydrophilicity and led to enhancement in shear strength, wood failure, and water resistance of the resulting PBWC. The thermal treatment significantly decreased the storage modulus close to 130 °C (the melting temperature of plastic). Thermal-treated wood veneer maintains mechanical interlocking for bonding and veneer strength which then declined under thermal treatment due to hemicellulose degradation and cellulose de-polymerization. In the silane-treated PBWC, enhanced interlocking and a stronger bonding structure resulted from the reaction between the silane-treated veneer and HDPE. This strong bonding structure allowed thermal stability improvement demonstrated by high modulus and low tanδ values. However, the strength of silane-treated PBWC was still much lower than thermosetting resin-bonded composites at higher temperatures due to the melting behavior of thermoplastic polymer, precluding its use in certain applications.
References
- Some technological properties of wood–styrofoam composite panels. Compos B Eng 55:513–517CrossRefGoogle Scholar
- 2.Moubarik A, Pizzi A, Allal A, Charrier F, Charrier B (2009) Cornstarch and tannin in phenol–formaldehyde resins for plywood production. Ind Crop Prod 30:188–193CrossRefGoogle Scholar
- 3.Cheng HN, Dowd MK, He Z (2013) Investigation of modified cottonseed protein adhesives for wood composites. Ind Crop Prod 46:399–403CrossRefGoogle Scholar
- 4.Wang Z, Guo WJ (2001) Production technical of environmental-friendly plywood. Patent, CN 1292320 A
- 5.Fang L, Chang L, Guo WJ, Chen YP, Wang Z (2013) Manufacture of environmentally friendly plywood bonded with plastic film. Forest Prod J 63:283–287CrossRefGoogle Scholar
- 6.Fang L, Chang L, Guo WJ, Ren YP, Wang Z (2013) Preparation and characterization of wood-plastic plywood bonded with high density polyethylene film. Holz Roh Werkst 71:739–746CrossRefGoogle Scholar
- 7.Wang Z, Guo WJ, Gao L (2005) Properties, applications and development trends of wood-plastic composite particleboard. China Wood-Based Panels 5:12–15Google Scholar
- 8.Xie YJ, Hill CAS, Xiao ZF, Militz H, Mai C (2010) Silane coupling agents used for natural fiber/polymer composites: a review. Compos Part A-Appl S 41:806–819CrossRefGoogle Scholar
- 9.Tang L, Zhang ZG, Qi J, Zhao JR, Feng Y (2011) The preparation and application of a new formaldehyde-free adhesive for plywood. Int J Adhes Adhes 31:507–512CrossRefGoogle Scholar
- 10.Zhang H (2014) Effect of a novel coupling agent, alkyl ketene dimer, on the mechanical properties of wood–plastic composites. Mater Design 59:130–134CrossRefGoogle Scholar
- 11.Zhang HH, Cui Y, Zhang Z (2013) Chemical treatment of wood fiber and its reinforced unsaturated polyester composites. J Vinyl Addit Techn 19:18–24CrossRefGoogle Scholar
- 12.Goriparthi BK, Suman KNS, Rao NM, Goriparthi BK, Suman KNS, Rao NM (2012) Effect of fiber surface treatments on mechanical and abrasive wear performance of polylactide/jute composites. Compos Part A-Appl S 43:1800–1808CrossRefGoogle Scholar
- 13.Dányádi L, Móczó J, Pukánszky B (2010) Effect of various surface modifications of wood flour on the properties of pp/wood composites. Compos Part A-Appl S 41:199–206CrossRefGoogle Scholar
- 14.Wei LQ, Mcdonald AG, Freitag C, Morrell JJ (2013) Effects of wood fiber esterification on properties, weatherability and biodurability of wood plastic composites. Polym Degrad Stabil 98:1348–1361CrossRefGoogle Scholar
- 15.González-Sánchez C, Martínez-Aguirre A, Orden MUDL, Fonseca-Valero C (2014) Use of residual agricultural plastics and cellulose fibers for obtaining sustainable eco-composites prevents waste generation. J Clean Prod 83:228–237CrossRefGoogle Scholar
- 16.Ifuku S, Yano H (2015) Effect of a silane coupling agent on the mechanical properties of a microfibrillated cellulose composite. Int J Biol Macromol 74:428–432CrossRefPubMedGoogle Scholar
- 17.Xu KM, Li KF, Zhong TH, Guan LT, Xie CP, Li S (2014) Effects of chitosan as biopolymer coupling agent on the thermal and rheological properties of polyvinyl chloride/wood flour composites. Compos B Eng 58:392–399CrossRefGoogle Scholar
- 18.Hong HQ, Liao HY, Zhang HY, He H, Liu T, Jia D (2014) Significant improvement in performance of recycled polyethylene/wood flour composites by synergistic compatibilization at multi-scale interfaces. Compos Part A-Appl S 64:90–98CrossRefGoogle Scholar
- 19.Faludi G, Dora G, Renner K, Móczó J, Pukánszky B (2013) Improving interfacial adhesion in pla/wood biocomposites. Compos Sci Technol 89:77–82CrossRefGoogle Scholar
- 20.Tran TPT, Bénézet JC, Bergeret A (2014) Rice and einkorn wheat husks reinforced poly (lactic acid) (pla) biocomposites: effects of alkaline and silane surface treatments of husks. Ind Crop Prod 58:111–124CrossRefGoogle Scholar
- 21.Church JS, Voda AS, Sutti A, George J, Fox BL, Magniez K (2015) A simple and effective method to ameliorate the interfacial properties of cellulosic fibre based bio-composites using poly (ethylene glycol) based amphiphiles. Eur Polym J 64:70–78CrossRefGoogle Scholar
- 22.Li Y (2014) Characterization of acetylated eucalyptus wood fibers and its effect on the interface of eucalyptus wood/polypropylene composites. Int J Adhes Adhes 50:96–101CrossRefGoogle Scholar
- 23.Liu R, Luo SP, Cao JZ, Peng Y (2010) Characterization of organo-montmorillonite (OMMT) modified wood flour and properties of its composites with poly(lactic acid). Compos Part A-Appl S 51:33–42CrossRefGoogle Scholar
- 24.Fang L, Chang L, Guo WJ, Chen YP, Wang Z (2014) Influence of silane surface modification of veneer on interfacial adhesion of wood-plastic plywood. Appl Surf Sci 288:682–689CrossRefGoogle Scholar
- 25.Fang L, Wang Z, Xiong XQ, Wang XH, Wu ZH (2016) Effects of initiator on properties of silane modified poplar veneer/high density polyethylene (HDPE) film composites. J Nanjing For Univ (Natural Sciences Edition) 40:133–136Google Scholar
- 26.Follrich J, Müller U, Gindl W (2006) Effects of thermal modification on the adhesion between spruce wood (Picea abies Karst.) and a thermoplastic polymer. Holz Roh Werkst 64:373–376CrossRefGoogle Scholar
- 27.Ayrilmis N, Jarusombuti S, Fueangvivat V, Bauchongkol P (2011) Effect of thermal-treatment of wood fibres on properties of flat-pressed wood plastic composites. Polym Degrad Stabil 96:818–822CrossRefGoogle Scholar
- 28.Kaboorani A, Faezipour M, Ebrahimi G (2008) Feasibility of using heat treated wood in wood/thermoplastic composites. J Reinf Plast Comp 27:1689–1699CrossRefGoogle Scholar
- 29.GB/T 17657-2013 (2014) Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels. Chinese National Committee for standardization, Beijing, PR China, pp 27–29
- 30.Valadez-Gonzalez A, Cervantes-Uc JM, Olayo R, Herrera-Franco PJ (1999) Chemical modification of henequén fibers with an organosilane coupling agent. Compos B Eng 30:321–331CrossRefGoogle Scholar
- 31.Abdelmouleh M, Boufi S, Salah AB, Belgacem MN, Gandini A (2002) Interaction of silane coupling agents with cellulose. Langmuir 18:3203–3208CrossRefGoogle Scholar
- 32.Hill CAS, Norton A, Newman G (2009) The vapor sorption behavior of natural fibers. J Appl Polym Sci 112:1524–1537CrossRefGoogle Scholar
- 33.Zaihan J, Hill CAS, Curling S, Hashim WS, Hamdan H (2009) Moisture adsorption isotherms of acacia mangium and endospermum malaccense using dynamic vapour sorption. J Trop For Sci 21:277–285Google Scholar
- 34.Hailwood AJ, Horrobin S (1946) Absorption of water by polymer analysis in terms of a simple model. Trans Faraday Soc 42:84–102CrossRefGoogle Scholar
- 35.GB/T 9846.3-2004 (2004) General specification for plywood for general use. Chinese National Committee for standardization, Beijing, PR China, p 14
For further details log on website :
http://link.springer.com/journal/10086
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