Effect of jute fibre treatment on moisture regain and mechanical performance of composite materials

Abstract

Abstract. This study was focussed to investigate the effect of fluorocarbon, hydrocarbon and hybrid fluorocarbon on the mechanical properties and moisture regain of jute fiber reinforced composites. A significant difference in moisture regain values of treated and untreated reinforcement samples was observed at a concentration of 40 g/l. The composite made from treated reinforcement regained very low moisture content and exhibited improved mechanical properties (tensile and flexural strength). Being dual nature (hydrophilic and hydrophobic groups) of Hybrid fluorocarbon, the treated jute fibers and corresponding composites showed better properties as compared to other two chemicals due to better interface.

Effects of Water and Chemical Solutions Ageing on the Physical, Mechanical, Thermal and Flammability Properties of Natural Fibre-Reinforced Thermoplastic Composites

“…Jute/PP and Jute/PLA show maximum W G ( Max ) values for water as 6.3% and 6.0% respectively, which, as reported above, if expressed with respect to percentage fibre content, are in the range of 9.5% and 9%, only slightly lower than the moisture regain value of jute (12% [ 11 , 32 ]), which of course will be higher at 100% relative humidity or when wet. However, these values are in a similar range to those reported by others [ 5 ] for jute composites and any differences would depend on the fibre content and resin matrix interface, as well as the composite preparation method.…”

“…On the other hand, wool, while having a more homogeneous physical structure at the microscale, has an internal morphology at the sub-micro level as well as surface scales [ 31 ]. The moisture regain values of jute, sisal and wool fibres typically reported in the literature are 12%, 11% and 15%, respectively for jute, sisal and wool [ 11 , 31 , 32 ]. However, as seen in Figure 3 , the maxima for all curves do not reach these values, because values are not weighted to respective fibre mass percentage contents listed in Table 1 .…”

“…The water uptake is much higher in sisal composites than jute composites (see Figure 5 a), which is most likely a consequence of their hollow microfiber character and despite their reported moisture regain values being very similar (11% and 12% respectively [ 11 , 32 ]). However, it must be remembered that both lignocellulose fibres contain significant levels of hydrophobic lignin and potentially water soluble hemicelluloses, which will influence water sorption characteristics.…”

“…However, the mass losses after ageing treatments noted for all composites containing jute and sisal fibres suggest that there has been removal of some of the respective fibre hemicellulose fractions, which are small oligomers with varying degrees of water solubility. In both jute and sisal, values are about 14% by weight of the total fibre [ 11 , 32 ]. Table 1 shows that the mass fractions of jute and hemp are about 40%, and so the small mass losses recorded in Figure 5 b could easily be explained in terms of hemicellulose loss.…”

A method for the process of collagen modified polyester from fish scales waste

“…Blended or interwoven polyester products are usually more skin-friendly. Besides, application of moisture management chemicals is used to improve the comfort and esthetic properties of polyester fibers [1] . Alkaline and enzyme hydrolysis, plasma, and grafting are popular methods for modifying the chemical and physical characteristics of polyester fabrics for improving their moisture management property [2] .…”