NANOHIDROGEL TAPIOKA MENGGUNAKAN EPIKLOROHIDRIN SEBAGAI AGEN PENGIKAT SILANG

Jurnal Teknologi Industri Pertanian Pub Date : 2019-10-21 DOI:10.24961/j.tek.ind.pert.2019.29.2.213

M. Kurniati, C. Winarti, F. A. Syamani, Indah Puspita

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Abstract

Natural polymer-based nanohydrogel, like starches, promises superior properties such as more eco-friendly, and cheaper prices because their raw materials are available naturally in abundant quantities compared to synthetic polymers. To obtain synthetic approaching characteristics, natural polymers need to be modified to improve their mechanical stability. Research has been conducted to develop the hydrogel prepared from acid h ydrolysed starch for 2 hours and 24 hours. The process of synthesising nanoparticles from hydrolyzed tapioca starch was done through the precipitation of ethanol . Synthesis of nanohydrogel was conducted by crosslinking methods using epichlorohydrin (Ech.) 5, 10, and 20%. Result showed that the particle size of tapioca nano hydrogel ranging from 14.97 – 492.7 nm. The most optimum treatment was nanohidrogel resulted from 2 hours hydrolyzed tapioca with 5% Ech. concentration, resulting swelling power , gel fraction, and t exture of 357.02 %, 77,71 %, and 5.61 mJ, respectively . Nanohydrogel is promising material as carrier matrix for agrochemical as well as fertilizer. Keywords : epichlorohydrin, nanohydrogel, tapioca

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天然聚合物基纳米水凝胶，就像淀粉一样，具有更优越的性能，比如更环保，价格更便宜，因为与合成聚合物相比，它们的原材料自然丰富。为了获得接近合成的特性，需要对天然聚合物进行改性以提高其机械稳定性。研究了酸解淀粉2小时和24小时制备的水凝胶。以木薯淀粉为原料，采用乙醇沉淀法制备纳米颗粒。采用5、10、20%环氧氯丙烷交联法制备纳米水凝胶。结果表明，制备的木薯粉纳米水凝胶粒径在14.97 ~ 492.7 nm之间。以5%乙酰胆碱水解木薯粉2小时制成纳米水凝胶为最佳处理方法。，膨胀力为357.02%，凝胶分数为77.1%，凝胶混合物为5.61 mJ。纳米水凝胶是一种很有前途的农化和肥料载体基质材料。关键词:环氧氯丙烷，纳米水凝胶，木薯粉

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Jurnal Teknologi Industri Pertanian

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