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首页> 外文期刊>Journal of Polymers and the Environment >Utilization of Waste Sorghum Grain for Producing Superabsorbent for Personal Care Products
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Utilization of Waste Sorghum Grain for Producing Superabsorbent for Personal Care Products

机译：利用废高粱粒生产个人护理产品的超吸收剂

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Modification of useful starch extracted from waste sorghum grains was carried out for production of superabsorbent materials which can be used in personal care products. Starch was extracted using alkali steeping method. It was characterized for swelling power, percentage transmittance and iodine binding values. The extracted starch was modified via graft copolymerization of acrylic acid and acrylamide onto starch to produce biodegradable absorbent material. The changes in modified starch structure were assessed using TGA, FTIR and SEM. The evaluation of enhancement in the properties was done by performing absorption tests. The reaction parameters were optimized to achieve higher graft add-on level and water absorption capacity. The absorbent product was further subjected to saponification for further enhancing its water absorption capacity (368.8 g/g). The product prepared by using optimized parameters of reaction was made highly porous by introducing sodium bicarbonate during the reaction. It showed a significant increase in the rate of water absorption and enhancement in water absorption capacity (380.9 g/g).The modified product showed 101.1 and 77.0 g/g absorption of artificial blood and artificial urine, respectively. This modified product was infused in commercially available sanitary napkin and baby diaper. Further, it was tested for fluid absorption and centrifuge retention capacity and it performed distinctly better than the commercial products. This superabsorbent material showed 12% weight loss after 28 days when biodegradability test by soil burial method was carried out.
机译：进行了从废高粱粒中提取的有用淀粉的改性，以生产可用于个人护理产品的超吸收性材料。使用碱浸法提取淀粉。其特征在于溶胀力，透光率百分比和碘结合值。通过将丙烯酸和丙烯酰胺接枝共聚到淀粉上来改性提取的淀粉，以生产可生物降解的吸收性材料。使用TGA，FTIR和SEM评估改性淀粉结构的变化。通过进行吸收测试来进行性能增强的评估。优化了反应参数以实现更高的接枝量和吸水能力。吸收性产品进一步进行皂化以进一步增强其吸水能力（368.8 g / g）。通过在反应过程中引入碳酸氢钠，使使用优化的反应参数制备的产物具有高度的多孔性。吸水率显着提高，吸水量增加（380.9 g / g），改性产品的人造血和人造尿分别吸收101.1和77.0 g / g。将该改性产品注入市售卫生巾和婴儿尿布中。此外，还测试了其吸收液体和离心机的能力，其性能明显优于市售产品。当通过土壤掩埋法进行生物降解性试验时，该高吸收性材料在28天后显示出12％的重量损失。

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