SISAL

About: SISAL is a research topic. Over the lifetime, 1878 publications have been published within this topic receiving 55528 citations.

Friction Properties of Sisal Fiber Reinforced Nano-SiO2 Phenol Formaldehyde Resin Brake Composites

Abstract: The friction-resistant sisal fiber/nanoSiO2 phenol formaldehyde resin composites were prepared through compression molding. In order to enhance the bonding between the sisal fiber (SF) and polymer matrix, sisal fibers were treated with different surface modifiers (alkali, coupling agent and borax). The friction and wear properties of the composite materials were investigated with a constant speed (D-SM) tester. The worn surfaces of composites were observed by scanning electron microscope (SEM). The results showed that the adoption of nanoSiO2 phenol formaldehyde resin as matrix resin can solve the heat fade of the friction material. The friction and wear parameters of the treated sisal fiber composites can meet the requirement of standards GB5763-1998. The fiber treatment methods had great influence on the friction and wear properties of the fiber composites. Specifically, the borax treated fiber composites showed low wear rates at different temperatures. The highest friction and wear resistances of sisal fiber composites were reached when the fiber content was 15%. Our data demonstrated that the sisal fiber is an ideal substitute of asbestos for brake pads.

Heat capacity of sisal / glass fibre reinforced hybrid composites

Abstract: Recently attempts have been made by several researchers in order to develop biodegradable composites. In the present work hybrid composites of unsaturated polyester based sisal/glass fibre hybrid composites were prepared. The sisal is a natural fibre which is also biodegradable and glass fibre is a synthetic fibre. These two natural and synthetic fibres are combined in the same matrix (unsaturated polyester) to make sisal/glass fibre hybrid composites and the heat capacity of these hybrid composites was studied. A significant improvement in heat capacity of sisal/glass fibre hybrid composites has been found. The chalk powder (additive) is also added to the resin (unsaturated polyester) in proportions of 1%,2%,3% by weight of resin respectively and sisal/glass fibre hybrid composites were prepared by using this resin to study the effect of chalk powder on heat capacity of these hybrid composites. It is also observed that as the chalk powder quantity increases the heat capacity also increases.

Thermal Analysis of Sisal/Epoxy Composite Processed by RTM

Abstract: Nowadays, polymeric composites reinforced with natural fibers are being considered in the civil engineering area The use of polymeric composites to reinforce degraded timber structures can improve its behavior Fibers with larger structural applications are glass and carbon but the use of natural fibers is an economical alternative and posses many advantages such as biodegradability, low cost and is derived from natural and renewable sources Epoxy composite reinforced with sisal fabric was processed by resin transfer molding (RTM) at room temperature and this work studies thermal behavior and its respective mechanism of thermal decomposition Samples of sisal fiber, epoxy resin and sisal/epoxy composite were characterized by Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) Thermogravimetric curves showed that sisal fibers can be used in manufacturing process where the processing temperature does not exceed 177°C and shown that the epoxy resin has the greatest stability material followed by sisal/epoxy composite