Showing papers on "SISAL published in 1986"
TL;DR: In this article, a comparative study was made between the moisture absorption behavior of sisal and jute fiber composites in an epoxy matrix under immersion conditions, showing that sisal fibres, of possessing more compact structure than jute fibres exhibited higher moisture absorption levels in their composite form, contrary to expectations.
Abstract: A comparative study was made between the moisture absorption behaviour of sisal and13; jute fibre composites in an epoxy matrix under immersion conditions. Sisal fibres inspite13; of possessing more compact structure than jute fibres, exhibited higher moisture absorption levels in their composite form, contrary to expectations. This tendency was attributed to the high cellulose content and a possible interfacial effect in the former13;
59 citations
Journal Article•
37 citations
TL;DR: Radiation induced graft copolymerization of ethyl acrylate onto sisal fibers was investigated in this paper, where the effect of different solvents, monomer concentration, and irradiation doses were followed.
Abstract: Radiation induced graft copolymerization of ethyl acrylate onto sisal fibers was investigated. It was fond that the percent added-on of ethyl acrylate to sisal fibers was prohibitively low when using the direct grafting method due to excessive hompolymerization. The preirradiation method was found to be invalid for improving the grafting content. In the presence of small amounts of styrene (St) the copolymerization can be achieved with little homopolymer formation by the direct grafting technique. The presence of sulfuric acid in the grafting solution enhances the grafting of styrene–ethyl acrylate comonomer to sisal fibers. the effect of different solvents, monomer concentration, and irradiation doses were followed. Sisal fibers were treated with sodium hydroxide, sulfuric acid, and combined treatment of both of them. The effect of these treatments on the grafting content was investigated. The grafting yield decreased when sisal fibers were subjected to alkali treatment under tension. However, sisal fibers pretreated with 0.4N sulfuric acid showed a slight increase in the grafting yield over the untreated samples.
7 citations
Journal Article•
4 citations
TL;DR: This paper found that fresh sisal waste was found to contain 90% moisture and have a low pH of about 4, but when put in the open, the waste was very unstable and underwent a rapid fermentation which was characterised by an initial increase in pH and the emission of odorous gases; later the pH remained more or less constant and Diptera maggots developed within 88 h.
1 citations