Wood Plastic Composites: Their Properties and Applications

2021 ◽  
Author(s):  
Kaimeng Xu ◽  
Guanben Du ◽  
Siqun Wang
Keyword(s):  
Mechanical Properties ◽  
Wood Species ◽  
Flame Retardants ◽  
Wood Products ◽  
Flame Retardance ◽  
Wood Plastic Composites ◽  
Aromatic Polyamides ◽  
Plastic Composites ◽  
Aging Resistance ◽  
Biological Durability

Wood plastic composites (WPCs) is one of crucial and potential engineering wood products that has been extensively employed in the fields of landscape, transportation, municipal engineering and building construction. It has gradually been used to replace the conventional wood-based composites. This chapter aims to introduce the properties and development of WPCs and illustrate how defects in their mechanical properties, biological and aging resistance, and flame retardance affect their global development. Herein, the effects on the biological durability of WPCs against algae, mold, fungi, and termites made with various wood species with different chemical extractive compositions, the natural weathering performance of WPCs and the mechanisms of protection against ultraviolet light and moisture, the effectiveness and mechanism of reinforcement of WPCs by novel alloy modification of linear and aromatic polyamides are reviewed. Additionally, the flame retardance properties, common testing methods as well as the performances of novel flame retardants for WPCs, are comparatively described. Lastly, the limitations and prospects of WPCs in future construction applications are also discussed.

scholarly journals Alien Wood Species as a Resource for Wood-Plastic Composites

2020 ◽  
Vol 11 (1) ◽  
pp. 44
Author(s):  
Sergej Medved ◽  
Daša Krapež Tomec ◽  
Angela Balzano ◽  
Maks Merela
Keyword(s):  
Wood Species ◽  
Dimensional Stability ◽  
Laser Scanning ◽  
Large Scale ◽  
Laser Scanning Microscopy ◽  
Raw Material ◽  
Confocal Laser ◽  
Alien Plant ◽  
Wood Plastic Composites ◽  
Plastic Composites

Since invasive alien species are one of the main causes of biodiversity loss in the region and thus of changes in ecosystem services, it is important to find the best possible solution for their removal from nature and the best practice for their usability. The aim of the study was to investigate their properties as components of wood-plastic composites and to investigate the properties of the wood-plastic composites produced. The overall objective was to test the potential of available alien plant species as raw material for the manufacture of products. This would contribute to sustainability and give them a better chance of ending their life cycle. One of the possible solutions on a large scale is to use alien wood species for the production of wood plastic composites (WPC). Five invasive alien hardwood species have been used in combination with polyethylene powder (PE) and maleic anhydride grafted polyethylene (MAPE) to produce various flat pressed WPC boards. Microstructural analyses (confocal laser scanning microscopy and scanning electron microscopy) and mechanical tests (flexural strength, tensile strength) were performed. Furthermore, measurements of density, thickness swelling, water absorption and dimensional stability during heating and cooling were carried out. Comparisons were made between the properties of six WPC boards (five alien wood species and mixed boards). The results showed that the differences between different invasive alien wood species were less obvious in mechanical properties, while the differences in sorption properties and dimensional stability were more significant. The analyses of the WPC structure showed a good penetration of the polymer into the lumens of the wood cells and a fine internal structure without voids. These are crucial conditions to obtain a good, mechanically strong and water-resistant material.

Mechanical Properties of 3D-Printed Wood-Plastic Composites

2018 ◽  
Vol 777 ◽  
pp. 499-507 ◽  
Author(s):  
Ossi Martikka ◽  
Timo Kärki ◽  
Qing Ling Wu
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
3D Printing ◽  
Impact Strength ◽  
Polylactic Acid ◽  
Wood Plastic Composite ◽  
Wood Plastic Composites ◽  
Plastic Composite ◽  
Plastic Composites ◽  
3D Printed

3D printing has rapidly become popular in both industry and private use. Especially fused deposition modeling has increased its popularity due to its relatively low cost. The purpose of this study is to increase knowledge in the mechanical properties of parts made of wood-plastic composite materials by using 3D printing. The tensile properties and impact strength of two 3D-printed commercial wood-plastic composite materials are studied and compared to those made of pure polylactic acid. Relative to weight –mechanical properties and the effect of the amount of fill on the properties are also determined. The results indicate that parts made of wood-plastic composites have notably lower tensile strength and impact strength that those made of pure polylactic acid. The mechanical properties can be considered sufficient for low-stress applications, such as visualization of prototypes and models or decorative items.

scholarly journals Mechanical Properties and Morphology of Wood Plastic Composites Produced with Thermally Treated Beech Wood

BioResources ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Farhad Arwinfar ◽  
Seyyed Khalil Hosseinihashemi ◽  
Ahmad Jahan Latibari ◽  
Amir Lashgari ◽  
Nadir Ayrilmis
Keyword(s):  
Mechanical Properties ◽  
Beech Wood ◽  
Wood Plastic Composites ◽  
Plastic Composites ◽  
Thermally Treated

scholarly journals Biological Durability of Sapling-Wood Products Used for Gardening and Outdoor Decoration

Forests ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 1152 ◽  
Author(s):  
Christian Brischke ◽  
Lukas Emmerich ◽  
Dirk G.B. Nienaber ◽  
Susanne Bollmus
Keyword(s):  
Wood Species ◽  
Field Tests ◽  
Corylus Avellana ◽  
Wood Products ◽  
Ground Contact ◽  
Horticultural Products ◽  
Corylus Avellana L ◽  
Water Trapping ◽  
Biological Durability ◽  
Salix Spp

Sapling-wood products from different wood species such as willow (Salix spp. L.) and Common hazel (Corylus avellana L.) are frequently used for gardening and outdoor decoration purposes. Remaining bark is suggested to provide additional biological durability. Even for temporary outdoor use it seemed questionable that durability of juvenile sapwood can provide acceptably long service lives of horticultural products. Therefore, sapling-wood from seven European-grown wood species was submitted to laboratory and field durability tests. In field tests, specimens with and without bark were tested in comparison and submitted to differently severe exposure situations, i.e., in-ground contact, and above-ground situations with and without water trapping. All materials under test were classified ‘not durable’ independently from any potential protective effect of remaining bark, which contradicted their suitability for outdoor applications if multi-annual use is desired.

scholarly journals Effect of the Addition of Carbon Nanomaterials on Electrical and Mechanical Properties of Wood Plastic Composites

Polymers ◽  
2017 ◽  
Vol 9 (11) ◽  
pp. 620 ◽  
Author(s):  
Xingli Zhang ◽  
Xiaolong Hao ◽  
Jianxiu Hao ◽  
Qingwen Wang
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanomaterials ◽  
Wood Plastic Composites ◽  
Plastic Composites

scholarly journals Mechanical properties of wood/plastic composites formed using wood flour produced by wet ball-milling under various milling times and drying methods

2019 ◽  
Vol 65 (1) ◽  
Author(s):  
Kazushige Murayama ◽  
Takako Ueno ◽  
Hikaru Kobori ◽  
Yoichi Kojima ◽  
Shigehiko Suzuki ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ball Milling ◽  
Wood Flour ◽  
Drying Methods ◽  
Wood Plastic Composites ◽  
Plastic Composites
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