Effect of coupling agents on rice‐husk‐filled HDPE extruded profiles

Panthapulakkal, Suhara; Sain, Mohini; Law, Syk

doi:10.1002/pi.1657

Cited by 85 publications

(60 citation statements)

References 20 publications

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“…[1][2][3][4][5] Since 1990 composites based on natural fibers, namely those associated with thermoplastic matrices, find application in the automotive and construction industry and are more and more used as a substitute of fiberglass composites. 6 Besides environmental and economic concerns, many important factors are now driving the use of lignocellulosic fibers, such as weight saving, good acoustic and thermal insulation, nonabrasive effect, and good availability.…”

Section: Introductionmentioning

confidence: 99%

Effect of silane coupling agents on the properties of pine fibers/polypropylene composites

Gironès

Méndez

Boufi

et al. 2006

J of Applied Polymer Sci

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In the present work, PP-based composites, reinforced with surface modified pine fibers, have been prepared. The surface of the fibers has been treated with several silane derivatives bearing specific functionalities. À ÀNH 2 , À ÀSH, long aliphatic chain, and methacrylic group were chosen as functionalities of the silane derivatives for evaluating the compatibility with the polymer matrix. Mechanical analysis, contact angle and XPS spectra, SEM microscopy, and water uptake measurements were used as characterization techniques for evaluating the nature of composites. XPS as well as contact angle measurements demonstrated that pine fibers and silane derivatives were effectively coupled. The mechanical analysis showed an increase in Young's and flexural moduli, by 12% and 130% respectively, and nonsignificant changes in the ultimate tensile strength were noted after surface modification. Water uptake measurements revealed a low water absorption by the materials, always lower than 2 wt %.

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Section: Introductionmentioning

confidence: 99%

Effect of silane coupling agents on the properties of pine fibers/polypropylene composites

Gironès

Méndez

Boufi

et al. 2006

J of Applied Polymer Sci

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“…In order to enhance the performance of rice-husk-filled polyolefines, Panthapulakkai et al (2005) studied the effect of coupling agents on rice-husk-filled polyolefine extruded profiles. They analyzed four different coupling agents based on ethylene-(acrylic ester)-(maleic anhydride) terpolymers and ethylene-(acrylic ester)-(glycidyl methacrylate) terpolymers.…”

Section: Introductionmentioning

confidence: 99%

Rice straw as an alternative reinforcement in polypropylene composites

Grozdanov¹,

Bužarovska²,

Bogoeva‐Gaceva³

et al. 2006

Agron. Sustain. Dev.

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-We studied the use of rice straw as reinforcement in maleated polypropylene (PP m ). Composites containing 20 and 30% by weight rice straw were successfully prepared by extrusion and compression molding. The samples were characterized by tensile tests, differential scanning calorimetry (DSC), thermogravimetry (TGA), dynamo-mechanical analysis (DMTA) and scanning electron microscopy (SEM). The results of the mechanical properties showed that rice straw can be used as an alternative reinforcement for polypropylene. Higher tensile moduli (E) were obtained for composites containing higher rice straw content. Thermogravimetric curves of the composites exhibit two-stage decomposition process and slightly higher thermal stability. Higher crystallization (T c ) and melting peak temperatures for composites were detected by DSC analysis (T cpp = 107.8°C, T cRS/PP(20/80) = 114.5°C). The renewability of rice straw and the recyclability of thermoplastic polypropylene provide an attractive eco-friendly quality to the resulting composites. eco-composites / natural fibers / rice straw / polypropylene

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“…In another study, composite particleboards made of fine-milled wheat straw and recycled LDPE (low density polyethylene) were produced in combination with the coupling agents PAL (polyacrylate latex) and PAPI (polymethylene polyphenylene isocyanate) (Kuang et al 2010). Different coupling agents were also tested in composites produced from high density polyethylene (HDPE) in combination with extruded rice husks (Panthapulakkal et al 2005).…”

Section: Surfactants and Coupling Agents Suitable For Surfaces Of Monmentioning

confidence: 99%

Monocotyledons in Particleboard Production: Adhesives, Additives, and Surface Modification of Reed Canary Grass

Trischler

Sandberg

2014

BioResources

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As a supplier to the furniture industry, the particleboard industry is searching for opportunities to reduce costs, weight, and formaldehyde emissions. One such opportunity is to use monocotyledons such as straw and hemp, as well as grasses like reed canary grass. A major problem when using reed canary grass or other monocotyledons in combination with wood is the difference in their surface properties, leading to poor reactivity and wettability with adhesives such as melamine urea formaldehyde. To this end, either the surface of the particles must be modified in some way, or different adhesives must be used. The purpose of this paper is to present adhesives, surfactants, coupling agents, and pre-treatment methods that can be used in combination with monocotyledons to improve compatibility with wood. Some of the methods have been tested on reed canary grass. The results show a wide range of strength values for the joint between wood and untreated or pre-treated reed canary grass glued with different adhesives, with and without a surfactant and a coupling agent. Isocyanate-based adhesives provided relatively strong bonds, and polyvinyl acetate, acryl, and epoxy adhesives were also effective. The most effective method was pre-treatment followed by adhesives in combination with a coupling agent.

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Effect of coupling agents on rice‐husk‐filled HDPE extruded profiles

Cited by 85 publications

References 20 publications

Effect of silane coupling agents on the properties of pine fibers/polypropylene composites

Effect of silane coupling agents on the properties of pine fibers/polypropylene composites

Rice straw as an alternative reinforcement in polypropylene composites

Monocotyledons in Particleboard Production: Adhesives, Additives, and Surface Modification of Reed Canary Grass

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