SISAL

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

Mechanical, thermal, and water absorption properties of melamine–formaldehyde-treated sisal fiber containing poly(lactic acid) composites

Abstract: The present study focuses on the melamine–formaldehyde (MF) coating ratio and silanization of PLA/sisal composites. Polylactic acid (PLA) was melt blended with short sisal fiber with and without MF resin coating. MF was applied at different weight ratios (sisal:MF = 1:1; 1:3, and 1:5) to coat the untreated or silanized sisal fibers which were incorporated up to 20 parts per hundred resin (phr) amount in PLA. PLA/sisal composites were produced by compression molding. It was found that the sisal:MF coating ratio at 1:1 by weight improved the tensile strength and tensile modulus of the composite with 10 phr sisal by 4% and 57%, respectively, compared to the virgin PLA. The initial and final decomposition (Ti) and (Tf) of PLA with untreated sisal were changed from 330.8 °C and 367.1 to 336.2 °C and 370.4 °C, respectively, after MF-coating (sisal:MF weight ratio = 1:1). This enhancement in thermal stability was attributed to the strong interaction between the MF and sisal fiber. The water absorption of PLA/MF–sisal composites slightly decreased with increasing sisal:MF ratio. This is due to the fact that the MF-coating substantially reduced the hydrophilic properties of sisal. Moreover, FTIR spectra and SEM images proved that sisal fibers were coated by MF resin successfully. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45681.

Measurement and analysis of thrust force and torque in drilling of sisal fiber polymer composites filled with coconut shell powder

Abstract: During the last few years, natural fiber (Sisal) have received much more attention than ever before from the research community They have an outstanding potential as reinforcement in thermosets, the reinforcing materials are strong with low densities while the matrix is usually a ductile, or tough, material The natural fiber Reinforced polymer composite materials used in general engineering applications, utilize the advantages offered by renewable resources for the development of polymer composite materials based on polymers, natural fibers and natural shell particles has been made through fabrication of Natural fiber and particulates reinforced polymer (NFPRP) composite material by using vinyl ester resin Drilling of holes is an important machining operation to determine the assembly operations in complicated composite parts used in engineering applications The present work focuses on optimization of the operating variable, tool geometry and the prediction of thrust force and torque of the NFPRP composite materials, and the values, compared with the Regression model and the Scheme of Delamination factor using machine vision system

The effect of surface modification on the properties of sisal fiber and improvement of interfacial adhesion in sisal/starch composites induced by starch nanocrystals

Abstract: A facile approach was utilized to introduce starch nanocrystals (SNCs) onto sisal fiber (SF) to improve the interfacial adhesion between SF and starch. For this, fibers were treated with alkali and...

Physico-Chemical and Thermal Characterization of a Lignocellulosic Fiber, Extracted from the Bast of Cola lepidota Stem

Abstract: In this research work, fiber extracted from the bark of Cola lepidota (CL) plant, grown in the flora of Southern part of Cameroon, was investigated for composites reinforcement. The investigation was carried via evaluation of water absorption capacity, moisture content, real density, porosity, chemical composition, chemical structure and thermal behaviour. It was discovered that the new fiber has relatively low moisture content and water absorption capacity similar to those of other investigated natural fibers such as flax, sisal, coconut, hemp and jute. Its porosity was found appropriate for composite production and the fiber was found to be thermally stable up to 230°C, with maximum degradation temperature of 325°C. The main constituents of the fibre include cellulose, hemicellulose and lignin. In conclusion, based on the properties investigated, this fiber is considered suitable for composite manufacture.

Chemical modification of sugarcane bagasse and sisal fibers using hydroxymethylated lignin: Influence on impact strength and water absorption of phenolic composites:

Abstract: Chemical modification of fiber surfaces can increase wettability of composites reinforced by vegetal fibers and, consequently, the dispersion of the fiber in the matrix and mechanical properties ca...