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首页> 外文期刊>Journal of Polymers and the Environment >Synthesis and Characterization of Hydroxyethyl Starch from Chips Wastes Under Microwave Irradiation
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Synthesis and Characterization of Hydroxyethyl Starch from Chips Wastes Under Microwave Irradiation

机译：微波辐射下芯片废弃物羟乙基淀粉的合成与表征

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This article focuses on the synthesis of hydroxyethyl potato starch (HEPS) for liquid hand soap by evaluating waste potato starch (WPS), a byproduct in potato chips production. It is a cheap, biodegradable, non-toxic and renewable natural polymer, available in great quantities on a global level. In a factory producing potato chips, WPS, which remained in the aqueous medium during peeling, slicing, and washing the potatoes, was purified at the desired temperature with H2O2 and NaOH. HEPSs with the molar substitution (MS) in the range from 0.298 to 0.670, were synthesized under microwave irradiation in isopropanol (IPA) and NaOH solution by adding ethylene oxide (EO) to WPS. The selected reaction parameters were the concentration of NaOH, the proportion of EO, and reaction time in an attempt to understand their effects on the reaction. Considering all the studied conditions, the highest viscosity was reached at 250 cP for the highest MS in the sample of HEPS-4 when 15 g EO was used in 20 mL solution of 40% NaOH at 40 degrees C for 40 min under microwave irradiation. The structure of synthesized HEPSs has been characterized by FT-IR, XRD, H-1(C-13)-NMR spectroscopic methods, and the degree of molar substitution was calculated from H-1-NMR spectra. In addition, thermal stability and surface morphology of characterized HEPSs were studied by DTG-TG and SEM, respectively. The thickener effect of hydroxyethyl starch in liquid hand soap was investigated. In this way, it has been understood that in the production of liquid hand soaps, hydroxyethyl potato starch can be used instead of coco diethanolamide (CDEA).
机译：本文专注于通过评估废马铃薯淀粉（WPS），在薯片生产中的副产物来合成液体手皂（HEPS）的液体手皂的合成。它是一种廉价，可生物降解，无毒和可再生的天然聚合物，在全球层面上提供大量。在工厂生产的薯片中，在剥离，切片和洗涤马铃薯期间留在水性介质中的WPS，在所需温度下用H 2 O 2和NaOH纯化。通过向异丙醇（IPA）和NaOH溶液中的微波辐射在0.298至0.670的范围内合成摩尔取代（MS）的HEPSS通过加入环氧乙烷（EO）至WPS。所选反应参数是NaOH的浓度，EO的比例和反应时间试图了解它们对反应的影响。考虑到所有研究的条件，当在微波辐射下40％NaOH在40％NaOH的40％NaOH中使用40％NaOH时，在40％NaOH中使用40％40分钟时，在250cP下达到最高粘度。合成的HEPSS的结构已经表征为FT-IR，XRD，H-1（C-13）-NMR光谱方法，摩尔取代度由H-1-NMR光谱计算。此外，DTG-TG和SEM研究了表征HEPS的热稳定性和表面形态。研究了羟乙基淀粉在液体手肥皂中的增稠剂作用。通过这种方式，已经理解，在液体手肥皂的生产中，可以使用羟乙基甲淀粉代替可可二乙醇酰胺（CDEA）。

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