Further investigation of polyaminoamide‐epichlorohydrin/stearic anhydride compatibilizer system for wood‐polyethylene composites

Geng, Yanfang; Li, K.; Simonsen, John Lionel

doi:10.1002/app.22565

Cited by 22 publications

(24 citation statements)

References 5 publications

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“…8 Creation of stress concentrations at fiber ends and poor interfacial adhesion between wood and synthetic polymer have been recognized as the leading causes for the brittleness of these composites. Much of the work in this field focuses on developing new coupling agents and compatibilizers, [17][18][19][20][21] as well as improving processing methods. 22,23 Impressive enhancement of material properties achieved with the inclusion of submicron-size fillers in plastics and elastomers has stimulated active research.…”

Section: Introductionmentioning

confidence: 99%

Influence of nanoclay on properties of HDPE/wood composites

Lei

Clemons

et al. 2007

J of Applied Polymer Sci

181

138

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Composites based on high density polyethylene (HDPE), pine flour, and organic clay were made by melt compounding and then injection molding. The influence of clay on crystallization behavior, mechanical properties, water absorption, and thermal stability of HDPE/pine composites was investigated. The HDPE/pine composites containing exfoliated clay were made by a two-step melt compounding procedure with the aid of a maleated polyethylene (MAPE). The use of 2% clay decreased the crystallization temperature (T c ), crystallization rate, and the crystallinity level of the HDPE/pine composites, but did not change the crystalline thickness. When 2% MAPE was added, the crystallization rate increased, but the crystallinity level was further lowered. The flexural and tensile strength of HDPE/ pine composites increased about 20 and 24%, respectively, with addition of 1% clay, but then decreased slightly as the clay content increased to 3%. The tensile modulus and tensile elongation were also increased with the addition of 1% clay. The impact strength was lowered about 7% by 1% clay, but did not decrease further as more clay was added. The MAPE improved the state of dispersion in the composites. Moisture content and thickness swelling of the HDPE/pine composites was reduced by the clay, but the clay did not improve the composite thermal stability.

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Section: Introductionmentioning

confidence: 99%

Influence of nanoclay on properties of HDPE/wood composites

Lei

Clemons

et al. 2007

J of Applied Polymer Sci

181

138

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“…Due to their low cost and availability, the use of wood fibers in plastic composites has received increasing attention. [1][2][3][4][5] Wood/plastic composites (WPCs) are thus used in a wide variety of applications, such as decking, window frames, and fencing. [6] However, the hydrophilic character of wood is a major problem in WPCs and entails a lack of compatibility at the interface between the natural fiber matrix and hydrophobic polymers.…”

Section: Introductionmentioning

confidence: 99%

“…[1,4,7,8] Thus, much research has been carried out to modify the hydrophilicity of lignocellulosic fibers and improve composite properties. In particular, the chemical modification of lignocellulosic fibers, or the use of a compatibilizer, have received significant attention.…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the chemical modification of lignocellulosic fibers, or the use of a compatibilizer, have received significant attention. [1,4,7,[9][10][11] Both approaches aim to improve the stress transfer between the natural fiber and the plastic matrix, and further entail an improvement in the physical and mechanical properties of the composite. The chemical modification generally involves the use of reagents bearing functional groups which can react with the hydroxyl groups of the fibers.…”

Section: Introductionmentioning

confidence: 99%

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Compatibilization of Natural Fibers with Synthetic Polymers Using Triblock Copolymers as Coupling Agents

Tingaut

Henry

Rials

et al. 2008

Macro Chemistry & Physics

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The ability of triblock copolymers of MMA and S to improve a wood/PS interface has been evaluated using the ADCB test. Two symmetric triblock copolymers were tested: an MMA centered triblock SMS and a styrene centered triblock MSM. The fracture toughness (Gc) of the interface has been evaluated as a function of the copolymer thickness. Gc was improved with both copolymers but depended on copolymer composition. At low copolymer thickness, the MSM was the strongest compatibilizer, while the SMS was more efficient in the saturated regime. An in‐depth characterization of the interface indicated that a lack of affinity between the MSM and PS is responsible for the different behaviors observed.magnified image

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“…To gain the good mechanicial properties of the composites, many researchers have been paying attention to the interface modification between wood flour and polymer matrix, and the processing rheological behavior, because of different inherent polarity of wood flour and polymer matrix, and the high loading of wood flour 2–12. Many modification methods have been adopted to improve poorly interfacial adhesion between the hydrophobic matrix (polymer) and the hydrophilic filler (wood flour).…”

Section: Introductionmentioning

confidence: 99%

Comparative study on the effect of manchurian ash and larch wood flour on mechanical property, morphology, and rheology of HDPE/wood flour composites

Jiang

Guo

et al. 2007

J of Applied Polymer Sci

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Effects of wood flour species and polyethylene grafted with maleic anhydride (MA-PE) on mechanical properties and morphology and torque rheology of high density polyethylene (HDPE)/wood flour composites have been comparatively investigated. The results demonstrated that without compatbilizer, wood flour species exhibited little influence on mechanical properties. In the presence of MA-PE, the mechanical properties were obviously increased. On the basis of the mechanical property data obtained from wood flour extracted by different methods, the extractant was an important factor affecting the mechanical properties. Manchurian ash and larch wood flours extracted by hot water presented almost the same mechanical properties, and larch wood flour was the most beneficial to enhance the mechanical properties. The scanning electron microscopy (SEM) and the atomic force microscopy (AFM) further confirmed that interfacial adhesion and dispersion of manchurian ash wood flour in composites were effectively improved by MA-PE. The torque results demonstrated that the chemical reactions of maleic anhydride groups on MA-PE with hydroxyl on cellulose in wood flour probably took place due to the increase of the equilibrium torque and the appearance of the torque peak, and larch wood flour was more beneficial to prepare the composites containing the higher wood flour content.

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Further investigation of polyaminoamide‐epichlorohydrin/stearic anhydride compatibilizer system for wood‐polyethylene composites

Cited by 22 publications

References 5 publications

Influence of nanoclay on properties of HDPE/wood composites

Influence of nanoclay on properties of HDPE/wood composites

Compatibilization of Natural Fibers with Synthetic Polymers Using Triblock Copolymers as Coupling Agents

Comparative study on the effect of manchurian ash and larch wood flour on mechanical property, morphology, and rheology of HDPE/wood flour composites

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