Topic
SISAL
About: SISAL is a research topic. Over the lifetime, 1878 publications have been published within this topic receiving 55528 citations.
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TL;DR: In this investigation the mechanical properties of Hybrid fibre reinforced vinyl ester composites were analysed based on volume percentage and length of fibre, similarly single natural fibre composite were developed to compare the properties.
Abstract: Considerable research in the field of material science has been directed towards the development of new light weight, high performance engineering materials like composite. In many applications, like an aircraft, there is a need for high strength weight ratio. This can be achieved by composite consisting of low density (and soft) matrix reinforced with stiff fibres. Now a day’s attention has been focused in the development of natural fibre composite due to their low cost and easy renewability. In this investigation the mechanical properties of Hybrid fibre reinforced vinyl ester composites were analysed based on volume percentage and length of fibre ,similarly single natural fibre composite were developed to compare the properties .The tensile and impact strength increase with fibre length and fibre content ,on the other hand flexural strength decrease with fibre length and content.
1 citations
Patent•
20 May 2015
TL;DR: In this paper, a novel sisal fiber extraction method and device is presented, which comprises the steps that sisal leaves are crosswise fed into one hemp peeling mechanism from the middle of the sisal leaf, and fibers are obtained through direct reverse drawing.
Abstract: The invention provides a novel sisal fiber extraction method and device. The method comprises the steps that sisal leaves are crosswise fed into one hemp peeling mechanism from the middle of the sisal leaves, and fibers are obtained through direct reverse drawing. The device comprises a feeding mechanism, a sisal leaf clamping and delivery mechanism, a fiber clamping and delivery mechanism, a left hemp peeling mechanism and a right hemp peeling mechanism, sisal leaf base crushing mechanism, and a power and transmission device, wherein the sisal leaves and the fiber clamping and delivery mechanism are arranged in an inclined mode toward the hemp peeling mechanisms and perpendicular to the crushing mechanism, a chain and a belt are arranged in parallel and the delivery speeds are the same, and the linear speed of a crushing roller is 1.4 times those of the chain and the belt. Double-vane rolling cylinders with two vanes rotating in opposite directions serve as the hemp peeling mechanisms. The sisal leaves are crosswise fed into the left hemp peeling mechanism by the feeding mechanism, fibers are drawn out by the sisal leaf clamping chain and enter the fiber clamping belt, tip fibers are further drawn out, bases enter the right hemp peeling mechanism after winding around the shaft end of the crushing roller, and base fibers are reversely drawn out. By the adoption of the method and device in sisal fiber extraction, the per capita productivity of an existing device is improved by 2 to 3 times, and the productivity per kilowatt hour is improved by 1 to 2 times.
1 citations
Journal Article•
1 citations
Journal Article•
TL;DR: In this article, the relationship of the impact strength, bending strength, wear resistance, electrical properties, and water absorption of the prepared composite was studied, and the results showed that the treating techniques had little effect on the electrical properties.
Abstract: Sisal fibers (SF) were surface treated by different techniques, such as acetylation, cyanoethylation, KMnO 4 treatment, IDI treatment and coupling agents treatment, and then powdered, unsaturated polyester/sisal fiber composites were prepared by means of press moulding The relationship of the impact strength,bending strength, wear resistance, electrical properties, and water absorption of the prepared composite were studied The results showed that the treating techniques had little effect on the electrical properties, thermal properties and water absorption; the effect of SF content on the mechanical properties and wear resistance was obvious, but the effect on the electrical properties was little; when SF was treated by coupling agents or TDI, and SF content was 10%, the composite had better strength, wear resistance and overall property
1 citations
Patent•
01 May 2018
TL;DR: Sisal rope core for elevator rope as discussed by the authors contains three sisal hemp yarn thighs and center thigh, the periphery at the center thigh is established to three Sisal Hemp yarn thighs, sisal yarn thigh contains the dry yarn of ramie of the six roots of sensation and two spunyarn yarns.
Abstract: Sisal rope core for elevator rope contains three sisal hemp yarn thighs and center thigh, the periphery at the center thigh is established to three sisal hemp yarn thighs, sisal hemp yarn thigh contains the dry yarn of ramie of the six roots of sensation and two spunyarn yarns, the periphery at two spunyarn yarns is established to the dry yarn of ramie of six roots of sensation parcel, each otheris twisted with the fingers about the dry yarn of ramie and spunyarn yarn, sisal rope's nominal diameter 8.15mm, the length of lay 32.6mm of wire rope core, the spunyarn yarn and the dry yarn of ramieare 0.8, the fibre material of the spunyarn yarn and the dry yarn of ramie is african 3L level fibre, the big 100cm of fiber length, is sisal rope's oil -bearing rate steerable 10 6200~6350N of pulling force of 15%, sisal rope. The utility model provides an oil content is convenient for control by sisal rope core for elevator rope, and wire rope core density and circularity obtain improving simultaneously, possess good holding power, can keep the elevator with the structure of restricting, guarantees good mechanical properties.
1 citations