Bonding of wood-plastic composites (WPC)—material and surface modification for special applications

Moritzer, Elmar; Hopp, Matthias

doi:10.1007/s40194-017-0487-0

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…Although FWPC has been widely investigated, one serious drawback is its low ignition point and its flammability [ 11 , 12 ]. Moreover, the weak interfacial compatibility between wood flour and PU was another concern [ 13 ]. Besides, its high flammability restricts its applications in various fields such as high-security levels or folk house [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of different types of flame-retardant treatment on the flame performance of polyurethane/wood-flour composites

Wang

Zhao

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

Effects of different types of flame-retardant treatment on the flame performance of polyurethane/wood-flour composites

Wang

Zhao

et al. 2023

Heliyon

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“…Over the last decade, however, the market share of WPC has not been limited exclusively to extrusion products such as palisades or decking boards. 1,2 Small technical products made of WPC are increasingly becoming the focus of the plastics processing industry. [3][4][5] WPC can be processed cost-effectively and with superior physicochemical properties compared to the pure material and offer advantages over inorganically reinforced plastics with respect to sustainability and recycylability.…”

Section: Introductionmentioning

confidence: 99%

Characterization of wood‐filled thermoplastic polyurethanes for the injection molding process

Moritzer

Richters

2021

J of Applied Polymer Sci

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Fiber fillings of wood plastic composites (WPC) are almost exclusively limited to standard plastics such as polyethylene and polypropylene. At the Kunststofftechnik Paderborn of the University of Paderborn the wood fiber filling of engineering plastics is being promoted. WPC with different fiber types and fiber contents based on two thermoplastic polyurethanes (TPU) were compounded and subsequently characterized. We found that the physicochemical properties of the materials differ from standard plastic‐based WPC. Wood filling with increasing fiber content did not immediately correlate with an increase in density. A decrease in density and swelling of the compound was detected with reaching a critical fiber content. Our compounds showed an increased water absorption at high‐fiber contents over time, which can be described logarithmically. The observed viscosity curves obey the Ostwald and de Waele power law, but an increased viscosity at increased fiber content was not apparent for both TPU matrices.

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“…However, the non-polar nature of polyethylene in WP/PE hinders their bonding (Hünnekens et al 2018). Previous studies have demonstrated that seamless connections of WP/PE can only be achieved after surface treatment (Moghadamzadeh et al 2011;Moritzer and Hopp 2017). Especially, the combined surface treatment of sanding then coating with a silane coupling agent followed by plasma discharge for WP/PE composites, was utilized to obtain a fast treatment method and a satisfactory bonding performance (Liu et al 2010;Hou et al 2017;Yáñezpacios and Martínmartínez 2017).…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of strap lap bonding joints for wood powder/polyethylene composites with combined surface treatment

Zhou

2020

BioRes

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A design for strap lap bond joints of wood powder/polyethylene composites (WP/PE) was proposed. The effects of combined treatment on surface properties of WP/PE and failure modes of WP/PE bonded by epoxy and acrylic ester were investigated. A finite element model of strap lap bond joints of WP/PE was established based on the elastoplasticity finite element method, and the effects of lap length and adhesive (epoxy and acrylic ester) on stress distributions and comprehensive displacements of strap lap bond joints of WP/PE were investigated. The results demonstrated that the bonding interface roughness of WP/PE was enhanced by the combined surface treatment. Active oxygen-containing functional groups were introduced to the sample surface. The finite element simulation results revealed that the Mises equivalent stress peaks and comprehensive displacements of strap lap bond joints were concentrated in lap zone ends and board connections, the stress distribution was independent of the lap length, and the Mises equivalent stress peaks and comprehensive displacements were independent of the adhesive.

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Bonding of wood-plastic composites (WPC)—material and surface modification for special applications

Cited by 7 publications

References 6 publications

Effects of different types of flame-retardant treatment on the flame performance of polyurethane/wood-flour composites

Effects of different types of flame-retardant treatment on the flame performance of polyurethane/wood-flour composites

Characterization of wood‐filled thermoplastic polyurethanes for the injection molding process

Finite element analysis of strap lap bonding joints for wood powder/polyethylene composites with combined surface treatment

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