Tensile, Flexural and Water Absorption Properties of Bamboo Fiber/Unsaturated Polyester Composites: Effect of Calcium Carbonate Content

Abstract

The paper presents the effect of CaCO3 content on the tensile, flexural and water absorption properties of bamboo fiber/polystyrene-modified unsaturated polyester composites. Two volume fractions of bamboo fibers had been used with the CaCO3 content varied from 2.5 to 10 (wt%). The tensile and flexural properties were used to characterize the composites. In addition, the water absorption and its effect of the flexural properties had also been conducted. The results showed that at the bamboo content of 30%, adding CaCO3 up to 10wt% tended to decrease the tensile strength and elastic modulus of bamboo fiber/modified unsaturated polyester composites up to 27% and 4%, respectively; however, at the bamboo content of 20%, its effect was not significant for both the tensile strength and the elastic modulus. Adding CaCO3 seemed not to have a significant effect for both the flexural strength and modulus. Having exposed in distilled water, CaCO3 did not significantly affect the water uptakes and the flexural properties of bamboo fiber/modified unsaturated polyester composites; however, the flexural strength and modulus significantly decreased in the ranges of 24 - 45% and 36 - 43%, respectively, compared to those in dry condition.

Influence of calcium carbonate fillers on pine fiber reinforced polyester composites

“…The thermogravimetric analysis (TGA) characterization showed the maximum amount of residue with increasing the incorporation of the filler. But as per the report done by Sugiman, [57] the CaCO 3 fillers only enhanced the modulus values of bamboo/polyester composites and decreased the strength values up to 10 wt% fillers loading. Both in dry and wet conditions, these fillers have no significant influence on flexural properties.…”

Polymer Composite Fabrication Reinforced with Bamboo Fiber for Particle Board Product Raw Material Application

“…The debonding occurs between the fiber and the matrix because the fiber is embedded deep in the matrix, indicated by the yellow arrow in Figure 10 (UPR-SBT for 250 mesh, 30 vf%). This was done in a previous study that examined the morphological behavior and mechanical properties of bamboo fiber reinforced polymer composites [44][45][46][47][48].…”

Biocarbon: A lightweight, functional filler for under‐the‐hood automotive composites

“…The samples consist mainly of alcohol, phenol, ester, ketone, and alkene, consistent with the composition of the main components of biomass: cellulose, hemicellulose, lignin, and pectin. [ 37,48 ] Interestingly, both pine and coconut flour exhibit strong absorption near 1050 cm −1 , consistent with CO stretching in a primary alcohol contained in cellulose. [ 37,49 ] However, after pyrolysis of pine and coconut flour, absorption near 1050 and 3400 cm −1 is reduced, suggesting that primary alcohol or ethanol was consumed or converted during pyrolysis.…”

“…a Associated with C═O in pectin/ hemicelluloses. [48] b Associated with C O in lignin. [48] evaluating the potential for biocarbon to act as a reinforcing agent in PA6-glass hybrid composites.…”

“…[48] b Associated with C O in lignin. [48] evaluating the potential for biocarbon to act as a reinforcing agent in PA6-glass hybrid composites. Biocarbons produced from pine and coconut feedstocks were supplied and used to generate 15% glass fiber-PA6 hybrid composites, with biocarbon loading level varying from 15% to 25%.…”