Physical and mechanical characterization of jute reinforced soy composites

Abstract

Jute fiber and soymilk extracted from soy seed were selected as ecofriendly and fully biodegradable components for making rigid and strong composite as a replacement of composites made from synthetic components. Rigid composites were prepared using non-woven jute fabric (felt) as reinforcing component and soymilk as matrix resin and properties of the composite specimens were characterized. Jute fiber in the non-woven jute fabric was modified by treating with different concentrations of sodium hydroxide for various time periods before composite fabrication. Significant increase in tensile strength (upto 42%) of jute fibers in the felt was achieved by 2 h, 2% alkali treatment. Both raw and alkali-treated jute felts were used for preparing composites with soy milk as resin using furfuraldehyde as cross linking agent. Different composites were fabricated by varying the quantity of jute felt, crosslinking agent and hot compression time and the process parameters were optimized. Mechanical properties of alkali-treated jute felt composites exhibited better tensile properties than those of raw jute felt composites. These biodegradable jute soy composites with comparable mechanical properties can potentially serve as cost-effective eco-friendly alternative to synthetic polymer-based non-biodegradable fiber composites in automobile, furniture and packaging industries.

Using Liquid Smoke to Improve Mechanical and Water Resistance Properties of Gelatin Films

“…The opinions mentioned above also have been identified by some previous studies, with a focus on new alternative biomass derived aldehydes and bio‐based aldehyde rich materials such as dialdehyde cellulose (Mu and others ; Dash and others ), oxidized alginate (Balakrishnan and others ), Modified dextran (Jalaja and others ), and furfural (Avancha and others ) for enhancing edible packaging and biomaterials. As for as acid and phenol existed in LS, whether they has other important role in the enhancing of gelatin films is not identified in this study and needed to further study.…”

A review on completely biodegradable composites developed using soy-based matrices

“…Inclusion of furfuraldehyde results in crosslinking between the functional groups in the protein and the jute fibers leading to improvement in properties of the composites. 36 As seen from the figure, increasing concentration of furfuraldehyde up to about 7% increased the tensile properties. The alkali-treated jute fibers had higher strength and modulus but similar elongation compared to the composites containing untreated jute fibers.…”

“…The alkali-treated jute fibers had higher strength and modulus but similar elongation compared to the composites containing untreated jute fibers. 36 Although increased resistance to water was claimed after treating in water, the stability of the composites under high humidity or under aqueous conditions were not investigated. In another study, soy milk extracted from soy beans was mixed with 1-20% glyoxal as the crosslinking agent and form the resin after heating to 125 C for 25 minutes.…”

“…Reproduced from Avancha et al. 36 with permission from Sage Publications.

Figure 17.Biodegradation (% weight loss) of the jute fiber-reinforced soymilk matrix after various days of degradation. Reproduced from Behera et al.

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Characterization of high glass transition temperature sugar-based epoxy resin composites with jute and carbon fibre reinforcement

“…Nevertheless, the literature on allbio composites made from jute fibres and bioresins is limited, mainly dealing with epoxidized plant oil composites. Avancha et al [21] prepared jute reinforced soy resin biocomposites. Best mechanical properties (tensile strength of 35 MPa and tensile modulus of 1546 MPa) were reached with composites consisting of 60 mass% jute reinforcement and 40 mass% soy resin compounded with 7 mass% furfuraldehyde.…”