Maleic anhydride copolymers as adhesion‐promoting reagent in wood veneer/biopolyethlyene composite materials

Biocomposite materials consisting of biopolyethlylene (bio‐PE) and wood veneer are produced using four structurally different maleic anhydride (MA) copolymers as reactive interfacial components. The respective MA copolymer was dip coated onto the veneer surface and serves as adhesion‐promoting and c...

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Bibliographic Details
Published in:Polymer composites 2019-05, Vol.40 (5), p.1979-1988
Main Authors: John, Rico, Schreiter, Katja, Trommler, Katja, Siegel, Carolin, Wagenführ, André, Spange, Stefan
Format: Article
Language:English
Subjects:
Adhesion
Anhydrides
Biomedical materials
Composite materials
Contact angle
Copolymers
Energy dispersive X ray spectroscopy
Esterification
Fourier transforms
Gift shops
Immersion coating
Maleic anhydride
Modulus of elasticity
Polyethylenes
Polymer matrix composites
Polymers
Reagents
Scanning electron microscopy
Spectrum analysis
Surface properties
Tensile properties
Veneers
Water drops
Wood fibers
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Summary:Biocomposite materials consisting of biopolyethlylene (bio‐PE) and wood veneer are produced using four structurally different maleic anhydride (MA) copolymers as reactive interfacial components. The respective MA copolymer was dip coated onto the veneer surface and serves as adhesion‐promoting and compatibilizing reagents for the highly polar wood veneer and the weakly polar bio‐PE. Fourier transformation infrared spectroscopy confirms esterification reactions on to the wood veneers. The MA copolymer modified woods show hydrophobic surfaces due to contact angles with water droplets up to 125 °. The adapted surface properties of the materials provide compatible biocomposite material verified by scanning electron microscopy/energy‐dispersive X‐ray spectroscopy images of wood fibers impregnated with the bio‐PE matrix. Furthermore, the tensile properties of the biocomposite materials are greatly improved for all MA copolymer coatings. Compared to the unmodified wood veneer/bio‐PE composites, the polypropylene‐graft‐maleic anhydride modification was found to have the highest improvement of 139% in Young's modulus and 115% in tensile strength. POLYM. COMPOS., 40:1979–1988, 2019. © 2018 Society of Plastics Engineers
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.24974