Thermal and mechanical properties of wood flour-polystyrene blends from postconsumer plastic waste

2010 ◽  
Vol 119 (1) ◽  
pp. 443-451 ◽  
Author(s):  
Justo Lisperguer ◽  
Ximena Bustos ◽  
Yanina Saravia
2020 ◽  
Vol 25 ◽  
pp. 101204 ◽  
Author(s):  
Mohau Justice Phiri ◽  
Mapoloko Mpho Phiri ◽  
Khotso Mpitso ◽  
Shanganyane Percy Hlangothi

2010 ◽  
Vol 119 (6) ◽  
pp. 3321-3328 ◽  
Author(s):  
Diène Ndiaye ◽  
Laurent M. Matuana ◽  
Sandrine Morlat-Therias ◽  
Loïc Vidal ◽  
Adams Tidjani ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3670
Author(s):  
Shahnaz Shahani ◽  
Zhongquan Gao ◽  
Mumtaz A. Qaisrani ◽  
Naveed Ahmed ◽  
Haseeb Yaqoob ◽  
...  

Municipal solid waste (MSW) contains plastic waste that can be used as a sustainable green substitute to reduce oil footprints, CO2 emissions, and environmental pollution. This study aims to recycle plastic waste by manufacturing wood-plastic composites and to improve its mechanical properties by using additives, coupling agents, and lubricants. These composites are prepared by mixing 40–70% of wood flour with 20–25% of a polymer matrix. Wood was degraded at 220 °C, and then the composites were processed at 50 °C. The manufacturing process carried out in the study involved wood waste meshing, drying, shredding, drying, trimming, filling, blending, compounding, and extrusion moulding. The compounding of composites was accomplished in twin-screw extruders. Once the mixture was uniformly mixed, its final shape was given by a two-step extrusion moulding. Previously, researchers aimed at enhancing the mechanical properties of the composites, but our research focus was to improve their durability for different industrial applications. The results suggest that the impact strength is 17 MPa with 50% of wood powder ratio while the maximum value for the tensile strength is 32.5 MPa. About 50% of an increase in wood powder resulted in 8.1% bending strength increase from 26.1 to 32.8 MPa. Reducing the plastic matrix and the wood-particles water swelling ratio resulted in better mechanical properties. The wood species also affected the mechanical properties with their excellent dimensional stability and less variability. A high proportion of wood fibre tends to increase its steady-state torque and viscosity. The mechanical properties against different wood-flour proportions indicate that composite materials exhibit superior water swelling behaviour and extrusion quality.


2016 ◽  
Vol 705 ◽  
pp. 87-92
Author(s):  
Sunan Tiptipakorn ◽  
Ketsarin Puengbankoh ◽  
Sarawut Rimdusit ◽  
Phiriyatorn Suwanmala ◽  
Kasinee Hemvichian ◽  
...  

In this study, the composites for wood substitution made of benzoxazine filled with rubber wood-flour were fabricated. The wood flour contents was varied from 0 to 30 wt%. The effects of gamma radiation on the thermal and mechanical properties of wood-flour filled polybenzoxazine were determined. The different radiation dose (i.e. 0, 10, 20, and 30 kGy) was applied to the fabricated samples. The differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA) were used to evaluate glass transition temperature (Tg) and degradation temperature (Td), respectively. While the flexural strength was determined using Universal Testing Machine (UTM). It could be noted that the increase of radiation dose provided the decrease of Td. Moreover, the values of Tg, flexural strength, and water absorption reveals the similar trend with the maximum point at 20 kGy of radiation dose.


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