Thermal Stability of Polypropylene-Based Wood Plastic Composites by The Addition of Ammonium Polyphosphate

전상진,; 이선영,

doi:10.5658/wood.2014.42.6.682

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…In general, all the composites were thermally stable up to 200 °C. From the TGA curves, it is evident that hemicellulose started its degradation reactions followed by the more thermally stable cellulose domains at 250 °C [ 55 , 56 , 57 ]. Degradation of cellulose and hemicellulose involved complex reactions comprised in the temperature range of 250–370 °C.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterisation of Wood Polymer Composites Using Sustainable Raw Materials

et al. 2022

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In recent years, composites consisting of polymers and cellulosic materials have attracted increasing research attention. Polypropylene (PP) is among the most common polymer types found in excavated waste from landfills. Moreover, wood waste generated from wood products manufacturing such as sawdust (SD) offers a good potential for the fabrication of composite materials, and it is readily available in the environment. In this paper, wood polymer composites (WPC) consisting of recycled PP (rPP) and (SD) were prepared and characterised. A range of mechanical properties, including tensile strength, flexural properties, creep and hardness were studied, along with morphology, thermal properties, water degradation and contact angle. The results showed that the mechanical and thermal properties of rPP increased with an increase in 40 wt% of the SD content. Furthermore, the SD content significantly influenced the water uptake of the composites. Time–temperature superposition (TTS) was applied to predict the long-term mechanical performance from short-term accelerated creep tests at a range of elevated temperatures. The short-term creep test showed efficient homogeneity between the fillers and matrix with increasing temperature. The produced wood polymer composites displayed a comparable physical property to virgin polymer and wood and could potentially be used for various structural materials.

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Section: Resultsmentioning

confidence: 99%

Preparation and Characterisation of Wood Polymer Composites Using Sustainable Raw Materials

et al. 2022

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“…The weight reduction in the range of 300 • C to 400 • C was due to cellulose degradation, and lignin decomposition occurred in the wide temperature range from 200 • C to 600 • C. It was clearly observed that there were two stages of weight loss occurred for the RPW and its composites. The first stage of weight loss occurred, corresponding to the charring of the hemicellulose, cellulose, and lignin contents of the wood particles [40]. The second stage of weight reduction happened due to the breakdown of polymers [41].…”

Section: Thermal Propertiesmentioning

confidence: 99%

Development of Wood Polymer Composites from Recycled Wood and Plastic Waste: Thermal and Mechanical Properties

et al. 2022

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The depletion of natural resources due to the aggressive industrialization in the last decades has brought considerable attention to research aimed at developing green and sustainable products using eco-friendly materials. The purpose of the current study was to develop wood polymer composites (WPCs) using recycled plastic waste (RPW) generated from university laboratories and recycled wood waste (RWW) from construction and demolition (C&D) activities by melt-blending technique. The WPCs were characterised for their mechanical and thermal properties, as well as water uptake and morphology. The SEM micrograph indicated good interaction between RWW and RPW matrix. The mechanical strength of the WPCs was found to increase from 26.59 to 34.30 MPa, with an increase of the RWW content in the matrix. The thermal stability was higher in the composite with a higher percentage of RWW in the matrix. The wettability results indicated that the composite with a higher RWW (20%) had a higher water uptake. These results suggest that the produced WPCs can be a promising environmental-friendly material, while maintaining good mechanical, thermal, and wettability properties.

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“…40,41 The second stage was the major decomposition stage, which occurred between 260°C and 500°C and led to the most significant mass loss. 42 As a result of the breaking and recombination of cellulose molecules caused by thermal depolymerization, a shoulder peak containing the central peak and a side peak simultaneously is apparent. 43 The third stage following thermal degradation as depicted in second stage was residue of decomposition.…”

Section: Resultsmentioning

confidence: 99%

Enhancement of properties of walnut shell/attapulgite/polyvinyl chloride composites with ultrasonic and hydrothermal treatment

Chen

Zhang

Yang

et al. 2023

Textile Research Journal

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The effects of ultrasonic and hydrothermal treatment on the physical, mechanical, wear resistance, water absorption and thermal stability of the walnut shell (WS)/attapulgite (ATP)/polyvinyl chloride (PVC) composite and its enhancement mechanism were investigated. WS was treated by ultrasound and hydrothermal treatment and mixed with PVC and ATP, and the WS/ATP/PVC composites were prepared by melt extrusion. The properties of composites were characterized, and the results showed that after ultrasonic and hydrothermal treatment, the main chemical structure of composites was not changed significantly. Compared with untreated composites, the wear resistance after ultrasonic treatment for 10 min is the best. After ultrasonic treatment for 15 min, the bending strength, tensile strength and impact strength of the composite are increased by 8.9%, 10.3% and 46.2%, respectively. Hydrothermal treatment at appropriate temperatures also improved some properties of the composites. The composites after hydrothermal treatment at 110°C had the best thermal stability and highest hardness, and the bending strength and tensile strength values were increased by 5.9% and 5.2%, respectively. The impact strength of the composite increased with the increase of hydrothermal treatment temperature. The results showed that ultrasonic and hydrothermal treatments have the potential to improve the performance of wood–plastic composites as environmentally friendly pretreatment methods.

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Thermal Stability of Polypropylene-Based Wood Plastic Composites by The Addition of Ammonium Polyphosphate

Cited by 6 publications

References 13 publications

Preparation and Characterisation of Wood Polymer Composites Using Sustainable Raw Materials

Preparation and Characterisation of Wood Polymer Composites Using Sustainable Raw Materials

Development of Wood Polymer Composites from Recycled Wood and Plastic Waste: Thermal and Mechanical Properties

Enhancement of properties of walnut shell/attapulgite/polyvinyl chloride composites with ultrasonic and hydrothermal treatment

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