Abstract
Wood–plastic composites were prepared from polyethylene terephthalate- 1,4-cyclohexanedimethanol ester (PETG) and waste-paper fiber that was unmodified, modified with alkyl-ketene-dimer (AKD), and modified with a silane-coupling agent. The mechanical properties, water absorption properties, surface structure, and thermal properties of the three prepared materials were compared. The results showed that the optimum amount of waste-paper powder is 10 wt%, while that of the waste-paper particles is 60–80 mesh. The use of AKD and coupling agent KH550 can reduce the water absorption of the composite; however, the reductive effect of the coupling agent is better, in that it is reduced by 0.3%. Modification using a 1-wt% KH550 coupling agent can effectively increase the tensile strength of a composite from 31.36 to 41.67 MPa (increase of 32.8%), while the bending strength increased from 86.47 to 98.31 MPa (increase of 13.7%). This also enhances the thermal stability of the composites. With the addition of the coupling agent, the composite material maintains good mechanical properties even after being immersed in water; this can enable the safe use of these composite materials in outdoor environments.
Highlights
Wood–plastic composites (WPCs) are high-performance composite materials prepared by blending plant fibers with plastic.[1]
Plant fibers are chosen as raw materials for the preparation of WPC primarily on the basis of their toughness and mechanical strength, which can improve the performance of plastic materials in certain aspects and achieve better overall performance.[2]
The AKD-modified waste-paper/PETG WPC had a fixed alkali concentration of 15% and was treated at 60 ◦C for 60 min to determine the effect of the amount of AKD on the composite material water absorption
Summary
Wood–plastic composites (WPCs) are high-performance composite materials prepared by blending plant fibers with plastic.[1]. The unique value of waste-paper has come to be recognized in the field of composite materials, such that the preparation of composite materials has become a major consumer of waste-paper resources. This field is gaining increased attention, and the authors expect to see the gradual development of excellent composites that use waste-paper as one of their raw materials. PETG wood-plastic composite materials are used in the production of furniture, plastic sheeting, decorative panels, plastic shelves, credit cards, food containers, and many other similar applications
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
