Effect of Fiber Content and Silane Treatment on the Mechanical Properties of Recycled Acrylonitrile-Butadiene-Styrene Fiber Composites

Abstract

The aim of the present study was to investigate the effects of fiber content and then silane treatment on the mechanical performance of the natural fiber composites of recycled acrylonitrile–butadiene–styrene (ABS) provided by the automotive sector. Wood and palmyra fibers were used as fillers in 10% and 20% fiber content composites. The fibers were treated with N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane to improve the interfacial adhesion between fibers and polymer matrices. The mechanical properties of the composites were determined by tensile and impact tests. Morphological analysis was later performed using a scanning electron microscope (SEM). According to the experiment results, the tensile and impact strength of both wood and palmyra fibers increase after silane treatment. However, for the low-wood-fiber-content composite, the tensile and impact strength decrease after silane treatment due to the presence of an excess amount of silane relative to fiber content. The addition of wood and palmyra fibers significantly improved the tensile modulus of composite material and further increases slightly after silane treatment. Finally, SEM analysis shows a homogenous mix of fibers and polymer matrices with fewer voids after silane treatment, thereby improving interfacial adhesion.

Investigation of effects of added hemp fiber particles on tensile behavior of acrylonitrile-butadiene-styrene

“…[8][9][10][11][12] To date, additives extracted from different natural plants including acrylic, para rubber tree, bamboo, pineapple leaf, kenaf, palm, and, oil palm empty fruit bunch have been mixed with ABS in filler and particle forms with different weight ratios, and their effects on the tensile behavior of ABS have been deeply investigated. [13][14][15][16][17][18][19][20][21] The literature has clearly put forth that the tensile properties of ABS such as elastic modulus and yield strength are pronouncedly influenced by additives type, size, form, and weight ratios. [13][14][15][16][17][18][19][20][21] For 1 instance, the experimental study revealed that the addition of wood sawdust with a size of 100-300 μm improves the tensile elastic modulus of ABS but results in a decrease in its tensile strength.…”

“…[13][14][15][16][17][18][19][20][21] The literature has clearly put forth that the tensile properties of ABS such as elastic modulus and yield strength are pronouncedly influenced by additives type, size, form, and weight ratios. [13][14][15][16][17][18][19][20][21] For 1 instance, the experimental study revealed that the addition of wood sawdust with a size of 100-300 μm improves the tensile elastic modulus of ABS but results in a decrease in its tensile strength. 13 The effects of the weight ratio of wood sawdust on the tensile properties of ABS were also studied and reported that increasing the weight ratio of wood sawdust from 9.1 wt% to 33.3 wt% leads to an improvement in the elastic modulus, but a deterioration in the tensile yield strength.…”

Effectiveness of oil palm fiber and surface treatments on the mechanical, thermal, morphological, and water absorption properties of wheat gluten composites

“…Silane coupling agents have bifunctional groups which can react or be compatible with functional groups into matrix chain and natural fiber to act as a bridge between matrix and natural fiber 35 . Silane treatment can improve the mechanical properties and water resistance of polymer composites 31–33 . To the best of our knowledge, there is still limited study of the surface treatment of natural fiber in WG.…”

“…27,28 The plasma technique is a common physical treatment that is used to increase the surface roughness and generate the new functional groups leading to strong interfacial bonding. 28,29 Chemical treatments for natural fibers have been various methods such as alkali, 28,30 silane, [31][32][33] acetylation, 34 and so forth. Alkali treatment can improve the surface roughness and aspect ratio of natural fiber while removing hemicellulose, lignin, and wax contaminants from the fiber surface.…”

“…35 Silane treatment can improve the mechanical properties and water resistance of polymer composites. [31][32][33] To the best of our knowledge, there is still limited study of the surface treatment of natural fiber in WG. Diao et al 20 and Hemsri et al 36 investigated the effects of alkali treatment, silane treatment, and silane treatment with alkali pretreatment on the mechanical properties of coconut fiber/WG composites.…”