scholarly journals Effect of incorporating different types of Sentang tree waste particle on the thermal stability of Wood Polymer Composite (WPC)

2022 ◽  
Vol 951 (1) ◽  
pp. 012077
Author(s):  
A M Zakaria ◽  
M A Jamaludin ◽  
M Z Zakaria ◽  
R Hassan ◽  
S A Bahari
Keyword(s):  
Thermal Stability ◽  
Polymer Composite ◽  
Paper Industry ◽  
Vital Role ◽  
Chemical Compositions ◽  
Wood Polymer ◽  
Twin Screw ◽  
Waste Particles ◽  
Thermal Stability Of ◽  
Wood Polymer Composite

Abstract This article presents the potential use of tree waste materials such as the leaves (L), branches (B) and trunks (T) of Azadirachta excelsa (Sentang) tree in the production of wood polymer composite (WPC). The WPC was fabricated from high-density polyethylene (HDPE) as bonding matrix, maleic anhydride (MA) as coupling agent, and Sentang tree waste particles (L, B and T) as filler, prepared using twin-screw extruder followed by injection moulding machine. The effects of incorporating these types of Sentang tree waste particle (at 35% and 45% particles loading by weight) on the thermal stability of WPC were reported. The chemical compositions of L, B and T were also determined and their influences on the thermal stability of WPC were discussed. The thermal behaviour was determined by using thermogravimetric analysis (TGA), whereas the chemical analysis using Technical Association of the Pulp and Paper Industry (TAPPI) methods. The addition of these tree waste particles as filler has increased the thermal stability of WPC compared to virgin HDPE (without any particle incorporation). The highest mass loss was experienced by virgin HDPE. It was also observed that chemical compositions of the particles played vital role in influencing the thermal stability of WPC.

Mechanical Properties of Barley Straw/HDPE Composites Produced with Extrusion Process

2021 ◽  
Vol 410 ◽  
pp. 593-598
Author(s):  
Anton M. Kuzmin ◽  
Nadir Ayrilmis ◽  
Vladimir N. Vodyakov
Keyword(s):  
Mechanical Properties ◽  
Polymer Composite ◽  
Physical And Mechanical Properties ◽  
Extrusion Process ◽  
Barley Straw ◽  
Processing Temperature ◽  
Screw Extruder ◽  
Wood Polymer ◽  
Twin Screw ◽  
Wood Polymer Composite

This paper is devoted to the study of the technological process for the production of tape from polyethylene and wood-polymer composite by extrusion. At the first stage, the wood-polymer composite granulate was obtained on a co-rotating twin-screw extruder. The tape was made on a Rheomex 19/25 PolyLab OS single-screw extruder with a barrel length L/D = 25. The processing temperature of the wood-polymer composite was in the range of 145 ... 160°C. The tensile strength and elasticity modulus in tension, water absorption per day and density were investigated for the developed wood-polymer composite and polyethylene. It has been found out that for the developed wood-polymer composite, the strength and elastic modulus along the stretch direction increase by 11% and 6%, respectively. Orientation stretching has a significant effect on the physical and mechanical properties of wood-polymer composites.

A new generation of wood polymer composite with improved thermal stability

2012 ◽  
Vol 97 (4) ◽  
pp. 496-503 ◽  
Author(s):  
Fabien Sliwa ◽  
Nour-eddine El Bounia ◽  
Gérard Marin ◽  
Fatima Charrier ◽  
Frédéric Malet
Keyword(s):  
Thermal Stability ◽  
Polymer Composite ◽  
Wood Polymer ◽  
New Generation ◽  
Wood Polymer Composite

scholarly journals Environmental impacts of wooden, plastic, and wood-polymer composite pallet: a life cycle assessment approach

2021 ◽  
Author(s):  
Md.Musharof Hussain Khan ◽  
Ivan Deviatkin ◽  
Jouni Havukainen ◽  
Mika Horttanainen
Keyword(s):  
Sensitivity Analysis ◽  
Global Warming ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Polymer Composite ◽  
Global Warming Potential ◽  
Consequential Life Cycle Assessment ◽  
Wood Polymer ◽  
Biogenic Carbon ◽  
Wood Polymer Composite

Abstract Purpose Waste recycling is one of the essential tools for the European Union’s transition towards a circular economy. One of the possibilities for recycling wood and plastic waste is to utilise it to produce composite product. This study analyses the environmental impacts of producing composite pallets made of wood and plastic waste from construction and demolition activities in Finland. It also compares these impacts with conventional wooden and plastic pallets made of virgin materials. Methods Two different life cycle assessment methods were used: attributional life cycle assessment and consequential life cycle assessment. In both of the life cycle assessment studies, 1000 trips were considered as the functional unit. Furthermore, end-of-life allocation formula such as 0:100 with a credit system had been used in this study. This study also used sensitivity analysis and normalisation calculation to determine the best performing pallet. Result and discussion In the attributional cradle-to-grave life cycle assessment, wood-polymer composite pallets had the lowest environmental impact in abiotic depletion potential (fossil), acidification potential, eutrophication potential, global warming potential (including biogenic carbon), global warming potential (including biogenic carbon) with indirect land-use change, and ozone depletion potential. In contrast, wooden pallets showed the lowest impact on global warming potential (excluding biogenic carbon). In the consequential life cycle assessment, wood-polymer composite pallets showed the best environmental impact in all impact categories. In both attributional and consequential life cycle assessments, plastic pallet had the maximum impact. The sensitivity analysis and normalisation calculation showed that wood-polymer composite pallets can be a better choice over plastic and wooden pallet. Conclusions The overall results of the pallets depends on the methodological approach of the LCA. However, it can be concluded that the wood-polymer composite pallet can be a better choice over the plastic pallet and, in most cases, over the wooden pallet. This study will be of use to the pallet industry and relevant stakeholders.

Recycling Waste Wood of Construction

2016 ◽  
Vol 871 ◽  
pp. 126-131 ◽  
Author(s):  
Larisa Grigorieva ◽  
Pavel Oleinik
Keyword(s):  
Composite Materials ◽  
Polymer Composite ◽  
Wood Waste ◽  
Raw Material ◽  
Polymer Composite Materials ◽  
Comparative Characteristic ◽  
Complicated Shape ◽  
Waste Wood ◽  
Wood Polymer ◽  
Wood Polymer Composite

The article considers contemporary methods and especially recycling of wood waste. The volume of wood waste is constantly growing due to the increase in the number of buildings subject to demolition or dismantling, reconstruction and repair works. The article contains the main requirements to the raw material derived from waste. Advantages of products made from wood-polymer composite materials on physic mechanical parameters. The comparative characteristic of cost for the production of wood-polymer plastic. It is noted that production made from wood polymer composite materials has unlimited product range, including boards, various profiled molded and moulded details with complicated shape (the board for the floor, skirting board, baguette, etc).

Effects of the Temperature and UV Radiation on the Antimicrobial Action of Bactericidal Wood Polymer Composite (BWPC)

2011 ◽  
Vol 299-300 (1) ◽  
pp. 26-33
Author(s):  
Jair Fiori Júnior ◽  
Raquel Piletti ◽  
Tatiana Barichello ◽  
Mara G.N. Quadri ◽  
Humberto G. Riella ◽  
...  
Keyword(s):  
Polymer Composite ◽  
Uv Radiation ◽  
Antimicrobial Action ◽  
Wood Polymer ◽  
Wood Polymer Composite

Wood-Polymer Composite Prepared by In Situ Synthesis of Copolymer within Wood and its Dimensional Stability

2010 ◽  
Vol 150-151 ◽  
pp. 1-5
Author(s):  
Yong Feng Li ◽  
Chi Jiang ◽  
Duo Jun Lv ◽  
Xiao Ying Dong ◽  
Yi Xing Liu
Keyword(s):  
Contact Angle ◽  
Porous Structure ◽  
Polymer Composite ◽  
Dimensional Stability ◽  
Value Added ◽  
Hydroxyl Groups ◽  
Wood Polymer ◽  
Volume Swelling ◽  
Wood Polymer Composite

In order to improve the value-added applications of low-quality wood, a novel Wood-Polymer Composite was fabricated by in-situ synthesis of copolymer from monomers within wood porous structure. The structure was characterized with SEM and FTIR, and its dimensional stability was also tested. The SEM observations showed that copolymer filled up wood pores and contact tightly with wood matrix, indicating strong interactions between them. FTIR analysis indicated that when the monomers copolymerized in situ wood porous structure, they also reacted with wood matrix by reaction of hydroxyl groups and ester groups, indicating chemical bond between the two phases, which is agreement with SEM observations. The volume swelling efficiency and contact angle of such composite were higher than those of wood, respectively, indicating good dimensional stability involving volume swelling efficiency and contact angle. Such composite could be potentially applied in fields of construction, traffic and indoor decoration.

Performance of Wood-Polymer Composite Prepared by In Situ Synthesis of Terpolymer within Wood

2010 ◽  
Vol 34-35 ◽  
pp. 1165-1169 ◽  
Author(s):  
Yong Feng Li ◽  
Bao Gang Wang ◽  
Qi Liang Fu ◽  
Yi Xing Liu ◽  
Xiao Ying Dong
Keyword(s):  
Mechanical Properties ◽  
Porous Structure ◽  
Polymer Composite ◽  
Value Added ◽  
Untreated Wood ◽  
Modulus Of Rupture ◽  
Hydroxyl Group ◽  
Wood Polymer ◽  
Wood Polymer Composite

In order to improve the value-added applications of low-quality wood, a novel composite, wood-polymer composite, was fabricated by in-situ terpolymerization of MMA, VAc and St within wood porous structure. The structure of the composite and the reaction of monomers within wood were both analyzed by SEM and FTIR, and the mechanical properties were also evaluated. The SEM observation showed that the polymer mainly filled up wood pores, suggesting good polymerizating crafts. The FTIR results indicated that under the employed crafts, three monomers terpolymerized in wood porous structure, and grafted onto wood matrix through reaction of ester group from monomers and hydroxyl group from wood components, suggesting chemical combination between the two phases. The mechanical properties of the wood-polymer composite involving modulus of rupture, compressive strength, wearability and hardness were improved 69%, 68%, 36% and 210% over those of untreated wood, respectively. Such method seems to be an effective way to converting low-quality wood to high-quality wood.

scholarly journals Selected properties of flat-pressed wood-polymer composites for high humidity conditions

BioResources ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 5141-5155
Author(s):  
Piotr Borysiuk ◽  
Jacek Wikowski ◽  
Krzysztof Krajewski ◽  
Radosław Auriga ◽  
Adrian Skomorucha ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Polymer Composite ◽  
Urea Formaldehyde ◽  
Core Layer ◽  
Modulus Of Rupture ◽  
Formaldehyde Resin ◽  
High Humidity ◽  
Wood Polymer ◽  
Wood Polymer Composites ◽  
Wood Polymer Composite

This study investigated the possibility of applying flat-pressed wood-polymer composites in conditions of high humidity. The experiment involved three variants of wood-polymer composite panels 16 mm thick, and 680 kg per m3 density. The wood particles were bonded with polyethylene. The share of polyethylene in the core layer was fixed at 50%, while in the face layers the content was varied (40%, 50%, or 60%). The following parameters were examined: modulus of rupture (MOR), modulus of elasticity (MOE), internal bond (IB), screw holding (SH), thickness swelling (TS), water absorption (WA), susceptibility to drilling and milling, wettability and surface free energy, and resistance to mold. The results were compared to particleboard glued with urea-formaldehyde resin. The wood-polymer composite had lower MOR and MOE values and similar IB and SH values. The panels indicated a remarkably higher water resistance (lower TS and WA values) with good surface wettability and high resistance to mold fungi. Additionally, the composites were easier to machine, e.g. drilling or milling, in comparison to standard particleboards.

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