In situ jute yarn composite with HEMA via UV radiation

Abstract

Jute yarns soaked for 30 min in 2-hydroxyethylmethacrylate (HEMA) ϩ MeOH solutions at different proportions [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]] were irradiated in situ with a UV lamp for different periods. The treated jute yarns that were washed in acetone after the irradiation to remove the unused excess monomer HEMA gained about 10% polymer loading with enhanced tensile strength (80%) and elongation (95%). The tenacity was not further increased by incorporation of a minute amount (1%) of novel additives into the HEMA ϩ MeOH solutions, but elongation was enhanced up to 140% when the additive urethane acrylate (1%) was mixed with the solution.

Effect of Gamma Radiation on the Mechanical Properties of Urea-Treated Rice Straw Polypropylene Composites

“…The urea molecule is smaller and also favorable for diffusing into the cellulose backbone chain during the equilibrium condition at the time of the grafting reaction [25] . Urea as an additive has been used in radiation grafting of wood [26] and jute [27] plastic composites and has shown to increase the graft yield and mechanical properties. Thus urea has been able to achieve a higher degree of grafting as well as produced improved mechanical properties of the polymer composites.…”

Influence of Additives on the Performance of Photografted Jute Yarn with 3-(Trimethoxysilyl)propylmethacrylate

“…Thus, urea achieved more grafting than PNVP. Urea as an additive has been used in radiation grafting of wood [8] and jute [11] plastic composites and has been shown to increase grafting yield and mechanical properties.…”

“…[7,8] Some success has been achieved in grafting jute using different vinyl monomers under UV and gamma radiation. [9][10][11][12] The present article deals with the grafting of jute yarn with the monomer 3-(trimethoxysilyl)propylmethacrylate in the swelling agent methanol under UV radiation and optimization of the monomer concentration and irradiation time. In addition, the effect of carboamide-containing additives on the performance of photographed jute yarn was studied.…”

Polypropylene matrix composites reinforced with coconut fibers

“…the natural fiber, is very attractive to the market. Some studies have been carried out on photo-induced grafting onto cellulose [11][12][13] employing UV radiation. Rahman and Mubarak 14 , for instance, applied artificial UV radiation as a pretreatment on coconut fibers reinforced polymethacrylate matrix.…”