Effect of water sorption on some mechanical parameters of composite systems based on low-density polyethylene and microcrystalline cellulose

Maskavs, M.; Kalniņš, Mārtiņš; Reihmane, Skaidrīte; Laka, Marianna; Chernyavskaya, S. A.

doi:10.1007/bf02260812

Cited by 18 publications

(8 citation statements)

References 8 publications

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“…(aramid and glass). MCC filled polyethylene and polystyrene polymer composites have been studied [12][13][14][15]. However there is lack of information about MCC filled engineering thermoplastics.…”

Section: Introductionmentioning

confidence: 99%

Dynamic mechanical behavior and thermal properties of microcrystalline cellulose (MCC)-filled nylon 6 composites

et al. 2011

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Section: Introductionmentioning

confidence: 99%

Dynamic mechanical behavior and thermal properties of microcrystalline cellulose (MCC)-filled nylon 6 composites

et al. 2011

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“…[5][6][7][8][9] The absorption of moisture can reduce fiber-matrix interaction, lead to poor stress transfer efficiencies, and result in the reduction of mechanical and dimensional properties. The effects of moisture absorption on the dimensional stability and mechanical properties of some natural fiber reinforced polymer composites have been reported in previous studies.…”

Section: Introductionmentioning

confidence: 99%

“…The effects of moisture absorption on the dimensional stability and mechanical properties of some natural fiber reinforced polymer composites have been reported in previous studies. [5][6][7][8][9] The absorption of moisture can reduce fiber-matrix interaction, lead to poor stress transfer efficiencies, and result in the reduction of mechanical and dimensional properties. For this reason, moisture absorption in natural fiber-plastic composites must be considered in those applications with long service needs in dynamic environments.…”

Section: Introductionmentioning

confidence: 99%

Effect of fiber treatment on the water absorption and mechanical properties of hemp fiber/polyethylene composites

Fang

Zhang

Deng

et al. 2012

J of Applied Polymer Sci

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The hemp fiber/polyethylene (PE) composites were prepared by varying the fiber shape (hemp flour and hemp fiber from thermomechanical refining), coupling agent (maleic anhydride grafted and copolymerized onto PE), coupling agent loading method (during fiber treating process in the thermomechanical refiner and compositing process in twin screw extruder), and compositing method (twin screw extruding and batch mixing). The paper firstly measured the moisture absorption properties of the treated fibers. The introduction of coupling agent during fiber treating process decreased effectively the moisture uptake. Then, the water absorption and mechanical properties were investigated on the hemp/PE composites. The loading of coupling agent during fiber treating process decreased the water uptake but also decreased the flexural yield strength, consequently resulted in lower flexural yield strength after water exposure. The composites prepared by batch mixing method were better than by twin screw extruding for the water resistance and mechanical properties.

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“…This may have indicated a drastic change in the composite structure and the appearance of a great amount of cracks and pores due to the discontinuity of the polymer matrix and facilitated access of the diffusant to the hydrophilic filler. Also, the arising pores were additional centers of sorption that sharply raised the value of P m and contributed to the increase in D. 35 These data were in good correlation to the dependence of a n on wood content (curve 2, Fig. 5), where the maximal strength was reached for 40 -50% wood.…”

Section: Diffusion Characteristics Of Pwcmentioning

confidence: 99%

Structure and properties of polymer–wood composites based on an aliphatic copolyamide and secondary polyethylenes

Mamunya

Zănoagă²,

Myshak

et al. 2006

J of Applied Polymer Sci

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ABSTRACT:Composite materials based on an aliphatic copolyamide and a secondary polyethylene, as thermoplastic matrices, and wood chips as filler were obtained and characterized. The influence of different factors (polymeric matrix type, fractional composition and geometrical characteristics of wood filler, processing parameters and ratio polymer/wood) on the properties of polymer-wood composites (PWCs) was studied. It was demonstrated that the packing factor F has an essential influence on the properties of PWCs: increasing F values determines an improvement in mechanical properties of these materials. Mechanical properties, thermal behaviour, morphological and diffusion characteristics of the analyzed composites were evaluated through specific methods and reported herein. Morphological and DSC data confirmed the presence of strong interface interactions between polymer and wood. The diffusion characteristics of PWCs showed that the diffusion coefficient D essentially depends on filler content in composites.

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Effect of water sorption on some mechanical parameters of composite systems based on low-density polyethylene and microcrystalline cellulose

Abstract: Strength-deformation characteristics of low-density polyethylene filled with microcrystalline cel-

Cited by 18 publications

References 8 publications

Dynamic mechanical behavior and thermal properties of microcrystalline cellulose (MCC)-filled nylon 6 composites

Dynamic mechanical behavior and thermal properties of microcrystalline cellulose (MCC)-filled nylon 6 composites

Effect of fiber treatment on the water absorption and mechanical properties of hemp fiber/polyethylene composites

Structure and properties of polymer–wood composites based on an aliphatic copolyamide and secondary polyethylenes

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