Effect of Chemical Modification on Mechanical Properties of Wood-Plastic Composite Injection-Molded Parts
Open accessAbstract
Wood chips from furniture-manufacturing byproducts, which do not include adhesive or paint in the waste wood, were used for the flouring process and chemical modification of wood flour (WF). After chemical modification, the WF was mixed with polypropylene through extrusion compounding and injection-molding to prepare wood-plastic composite (WPC) injection-molded specimens for the American Society for Testing and Materials. Static contact angle measurements and stereomicroscope observations were performed. In this study, it was confirmed that the impact strength was improved by up to 55.8% and the tensile strength by up to 33.8%. The flexural modulus decreased marginally. As a result of WF chemical modification, the measured contact angle of WPC increased, which means that the wettability of the WPC specimen surface decreased. In addition, it was observed through stereomicroscopy that the whitening of the surface of the WPC specimen improved.
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MAPP or MAPE compatibilizers improve the compatibility and interfacial adhesion between polymer and wood in WPC.
“This bond enhances the compatibility and the interfacial adhesion between polymer and wood, and leads to the improvement of mechanical properties of WPC [27][28][29][30][31][32][33][34].”
From Utilization of Municipal Plastic and Wood Waste in Industrial Manufacturing of Wood Plastic Composites (2020) · cites this paper as [29]
The Materials and Methods section says MAPP was added to improve compatibility between wood flour and polypropylene, and the Introduction links the chemical-modification process to improved interfacial adhesion. The Conclusions report improved impact and tensile strength, but attribute the adhesion improvement to a process involving alkali treatment and silane rather than isolating MAPP's effect. The paper does not address MAPE. (LLM, conf=0.87)
Experimental — accuracy not yet measuredThe improvement in mechanical properties of the composites with the use of compatibilizer were also reported by previous studies.
“The improvement in mechanical properties of the composites with the use of compatibilizer were also reported by previous studies [27][28][29][30][31][32][33][34].”
From Utilization of Municipal Plastic and Wood Waste in Industrial Manufacturing of Wood Plastic Composites (2020) · cites this paper as [29]
The improved compatibility and interfacial adhesion between polymer and wood leads to improvement of mechanical properties of WPC.
“This bond enhances the compatibility and the interfacial adhesion between polymer and wood, and leads to the improvement of mechanical properties of WPC [27][28][29][30][31][32][33][34].”
From Utilization of Municipal Plastic and Wood Waste in Industrial Manufacturing of Wood Plastic Composites (2020) · cites this paper as [29]
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Research works printed but not linked: 19
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Basalp, D., Tihminlioglu, F., Sofuoglu, S. C., Inal, F., & Sofuoglu, A. (2020) · Waste and Biomass Valorization · doi:10.1007/s12649-020-00986-7 · Cited by 88 · see citing works
- Authors
- Sohn, J. S., & Cha, S. W.
- Affiliations
- Yonsei University (KR)
- Corresponding author
- Cha, Sung Woon
- Venue
- Polymers
- Publisher
- MDPI AG
- Published
- 2018-12-15
- Volume
- 10
- Issue
- 12
- Pages
- 1391
- ISSN
- 2073-4360 (ISSN-L)
- PMC
- PMC6401952
- OpenAlex
- W2904465140
- Cited by
- 31
- References
- 0
- Citations by year
- 2026: 3 · 2025: 4 · 2024: 5 · 2023: 2 · 2022: 4 · 2021: 6 · 2020: 3 · 2019: 4
- FWCI
- 1.62
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Polymers (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Natural Fiber Reinforced Composites
- Physical Sciences › Engineering › Building and Construction › Wood Treatment and Properties
- Physical Sciences › Engineering › Mechanical Engineering › Polymer Science and Applications
- Keywords
- wood-plastic composites, polypropylene, injection molding, impact strength, tensile strength, flexural modulus, wettability, contact angle, mechanical properties
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