Wood‐fiber/high‐density‐polyethylene composites: Coupling agent performance

Lu, John Z.; Wu, Qinglin; Negulescu, Ioan I.

doi:10.1002/app.21410

Cited by 241 publications

(188 citation statements)

References 17 publications

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“…Moreover, the interfacial compatibility among PP, HMSPP, and BP was improved, which could lead to the efficient transfer of stress from the matrices to the stiffer bamboo powders and thus enhance the mechanical strength (Herrera-Franco and Valadez-González 2005;Lu et al 2005).…”

Section: Effects Of Mapp Content On the Physico-mechanical Propertiesmentioning

confidence: 99%

Effects of Maleic Anhydride-Grafted Polypropylene (MAPP) on the Physico-Mechanical Properties and Rheological Behavior of Bamboo Powder-Polypropylene Foamed Composites

Zhou

Qin

et al. 2013

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To improve the interfacial compatibility between bamboo powder and polypropylene (PP), the effects of maleic anhydride-grafted polypropylene (MAPP) on the physico-mechanical properties and rheological behavior of 33 wt% bamboo powder/PP foamed composites were investigated. The results showed that the mechanical properties, water resistance, and surface wettability of MAPP-treated composites improved significantly, and the optimum content of MAPP was 9%. The density of 9% MAPP-treated composite was 0.845 g/cm 3 and its specific bending and tensile and notched impact strengths increased by 22.9%, 29.6%, and 49.0%, respectively, and the water absorption decreased from 8.80% to 1.92%, compared to the untreated composite. The frequency sweep results indicated that both the modulus and complex viscosity of the 9% MAPP-treated composite reached minimum values, and the slope of the lgG'-lgf curve for the treated composite increased by 15.9% compared with that of the untreated analogue. ESEM results indicated that the MAPP-treated composite had better bamboo powder dispersion and better interfacial compatibility. FTIR and XPS analyses confirmed the esterification between anhydride groups of MAPP and hydroxyl groups of bamboo powder. XRD studies showed the degree of crystallinity for the MAPP-treated composite increased to 26.52%, compared to 21.05% for the untreated composite.

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Section: Effects Of Mapp Content On the Physico-mechanical Propertiesmentioning

confidence: 99%

Effects of Maleic Anhydride-Grafted Polypropylene (MAPP) on the Physico-Mechanical Properties and Rheological Behavior of Bamboo Powder-Polypropylene Foamed Composites

Zhou

Qin

et al. 2013

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“…Copolymers containing maleic anhydride, such as maleic anhydride grafted polyethylene (MAPE) or maleic anhydride grafted polypropylene (MAPP), are the most common coupling agents used for natural fiber-thermoplastic composites (Balasuriya et al 2003;Lu et al 2005). The anhydride portion of the MAPE and MAPP can react with a hydroxyl group of the lignocellulose fiber surface and form an ester bond.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fiber Type and Coupling Treatment on Properties of High-Density Polyethylene/Natural Fiber Composites

et al. 2013

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High-density polyethylene (HDPE) and natural fiber composites were prepared by melt compounding and injection molding. The influence of fiber type (i.e., pine, bagasse, rice straw, and rice husk) and the addition of coupling agents on the composite properties were investigated. The use of 30 wt% fiber enhanced the tensile and flexural properties of neat HDPE, but decreased the impact strength. The comprehensive mechanical properties of HDPE/natural fiber composites were significantly improved by the addition of 2 wt% maleated polyethylene (MAPE). The toughness was further enhanced with the use of 5 wt% maleated triblock copolymer styrene-ethylene/butylene-styrene (MASEBS). The composites had higher crystallization peak temperatures and lower crystallinity levels than neat HDPE, and their thermal stability was lower than that of HDPE. The reduced storage modulus and increased loss tangent showed that MASEBS performed as a flexibilizer in composites.

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“…However, according to Lu et al 22 , and Liang et al 23 , there is an optimum concentration of these agents to promote better adhesion between the matrix and the dispersed phase and consequently, that the composites show improvement in their properties.…”

Section: Dscmentioning

confidence: 99%

Influence of coupling agent in compatibility of post-consumer HDPE in thermoplastic composites reinforced with eucalyptus fiber

et al. 2014

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This study investigates the feasibility of using recycled high density polyethylene (HDPE) and wood fiber from species Eucalyptus grandis (EU) to manufacture experimental composite panels. The use of maleated polyethylene as coupling agent (CA) improved the compatibility between the fiber and plastic matrix. The mechanical properties of the resultant composites were compared with polymer with and without compatibilizer. The influence of the coupling agent (CA) in the polymer matrices and composites were evaluated at different concentrations, checking the physical, mechanical and thermal properties of wood plastic composites (WPC). Results of mechanical, physical and thermal properties showed that concentration of 3% w/w CA in the polymer matrices was that which showed the best results, but in the composites properties were very similar in all formulations. Based on the findings in this work, it appears that recycled materials can be used to manufacture value-added panels without having any significant adverse influence on material properties.

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Wood‐fiber/high‐density‐polyethylene composites: Coupling agent performance

Cited by 241 publications

References 17 publications

Effects of Maleic Anhydride-Grafted Polypropylene (MAPP) on the Physico-Mechanical Properties and Rheological Behavior of Bamboo Powder-Polypropylene Foamed Composites

Effects of Maleic Anhydride-Grafted Polypropylene (MAPP) on the Physico-Mechanical Properties and Rheological Behavior of Bamboo Powder-Polypropylene Foamed Composites

Effect of Fiber Type and Coupling Treatment on Properties of High-Density Polyethylene/Natural Fiber Composites

Influence of coupling agent in compatibility of post-consumer HDPE in thermoplastic composites reinforced with eucalyptus fiber

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