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Research Article

Physical Properties Characterization of Polyvinyl Acetate Composite Reinforced with Jute Fibers Filled with Rice Husk and Sawdust

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Pages 5928-5939 | Published online: 28 Mar 2021
 

ABSTRACT

Rice husk and sawdust are abundantly available as wastes which end up in landfills. These can be utilized to produce lightweight and high strength bio-composites reinforced with jute fiber to substitute wood-based particle board (PB) for furniture production. This study aimed at producing polyvinyl acetate (PVAc) composites reinforced with jute fibers and filled with a combination of rice husks and sawdust at a ratio of 1:1 while jute fiber content was varied between 5% and 30%. Physical and mechanical properties of raw materials were characterized to ascertain their quality. The constituents were mixed and molded at room temperature. The manufactured composites were characterized by their water absorption (WA), thickness swelling (TS), density, tensile, compression, and bending strength. The results show a considerable improvement in the mechanical properties of composite when jute fiber content increased. Water absorption and thickness swelling had an inversely proportional relationship with jute fiber content due to its hydrophilic properties. On the other hand, the mechanical properties had direct proportional relationship with PVAc concentration. But above 30% PVAc concentration, the properties of the composite did not show any significant increment because above this volume fraction of PVAc, the properties tend to depend more on PVAc.

摘要

稻壳和锯末是大量可用的废物,最终在填埋场. 这些材料可用于生产轻质、高强度的黄麻纤维增强生物复合材料,替代木基刨花板(PB)用于家具生产. 以黄麻纤维含量为5%~30%,稻壳与锯末按1:1的比例填充黄麻纤维增强聚醋酸乙烯(PVAc)复合材料. 对原料的物理力学性能进行了表征,以确定其质量. 这些成分在室温下混合成型. 对制备的复合材料进行了吸水率(WA)、厚度膨胀率(TS)、密度、拉伸、压缩和弯曲强度的表征. 结果表明,随着黄麻纤维含量的增加,复合材料的力学性能有较大的提高. 由于黄麻纤维的亲水性,吸水率和厚度膨胀率与黄麻纤维含量成反比关系. 另一方面,力学性能与PVAc浓度成正比关系. 但当PVAc浓度超过30%时,复合材料的性能并没有明显提高,因为在PVAc体积分数以上,复合材料的性能更依赖于PVAc.

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