一种环保型玻璃清洗剂的研制及其性能研究

Research on the Preparation and Properties of an Eco-Friendly Glass Cleanser

为应对日益严苛的环保要求,研发了一种新型环保型玻璃清洗剂。其配方选用可生物降解的表面活性剂,且通过正交试验确定了其最优配方组合:氢氧化钠的质量分数为2.0%,十二烷基硫酸钠的质量分数为0.3%,脂肪酸甲酯磺酸钠的质量分数为0.3%,十二烷基葡萄糖苷的质量分数为0.3%,乙醇的质量分数为7.5%,乙二醇的质量分数为7.5%,柠檬酸钠的质量分数为0.2%,三乙醇胺的质量分数为0.2%,乙二胺四乙酸二钠的质量分数为0.5%。并对清洗工艺条件进行了优化,且在此基础上进行了重复清洗实验。通过生物摇床实验测定了试液中的COD含量,评价了清洗剂的生物降解性能。研究结果表明:当清洗温度为25℃、清洗时间为4 min时,清洗剂的清洗效果最好,污垢去除率和玻片透光率分别为99.46%和88.05%;重复清洗7次后,对污垢仍有较好的清洗效果,去除率高达98.99%;28 d后,试液COD的质量浓度下降了95.99%,具有良好的生物降解性能。

In view of the increasingly stringent environmental requirements,a new type of eco-friendly glass cleanser has been developed.The optimal combination of formula has been obtained as follows： Na OH 2.0 wt%,SDS 0.3 wt%,FAMES 0.3 wt%,APG 0.3 wt%,ethanol 7.5 wt%,ethylene glycol 7.5 wt%,sodium citrate 0.2 wt%,triethanolamine 0.2 wt%,and EDTA disodium 0.5 wt%.The cleaning process has been optimized and repeated cleaning experiments have been carried out on this basis.The biodegradability of the glass cleanser has been investigated by measuring the COD content of the test solution based on shaking-bottle incubating tests.The results show that the cleaning efficiency proves to be the highest when the glass specimens are supersonically rinsed for 4 min at 25 ℃,with its removal rate being 99.46% and light transmittance being 88.05%.After seven times of of repeated cleaning,the removal rate is as high as 98.99%; and 28 days later,COD of the test solution content has decreased by 95.99%,thus verifying the good biodegradability of the new type of glass cleanser.