Effect of surface treatments on the electrical properties of low-density polyethylene composites reinforced with short sisal fibers
作者： Augustine Paul , Kuruvilla Joseph , Sabu Thomas
DOI: 10.1016/S0266-3538(96)00109-1
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摘要: Abstract The electrical properties of short-sisal-fiber-reinforced low-density polyethylene composites have been studied. Various surface treatments such as alkali, CTDIC, stearic acid, peroxide, permanganate and acetylation were carried out on the sisal fibers to improve interfacial bonding. treated surfaces characterized by infra-red spectroscopy. dielectric constant increases progressively with increase in fiber loading decreases frequency for all composites. values found decreased a result chemical treatments. This is due fact that hydrophilic nature natural treatment. Volume resistivity treated-sisalfiber/LDPE be greater than those raw-sisal-fiber/LDPE permanganate-treated-sisalfiber/LDPE depend concentration KMnO 4 solution used value volume increases, reaches maximum then potassium solution. loss factors treated-sisal-fiber-reinforced/LDPE lower untreated-sisalfiber/LDPE relaxation peak same region
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