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低毒低挥发性脱漆剂的研制 总被引:1,自引:0,他引:1
以甲基丙烯酸甲酯为主溶剂,苯甲醛为助溶剂,有机酸为促进剂,OP-10为表面活性剂,硫脲为缓蚀剂,液体石蜡为封闭剂,制备了一种针对丙烯酸涂层的低毒、低挥发性的脱漆剂。分别研究了主、助溶剂配比,甲酸含量及表面活性剂含量对脱漆剂脱漆效果的影响,同时研究了液体石蜡含量对脱漆剂挥发速度的影响。结果表明,当甲基丙烯酸甲酯的质量分数为65.25%,苯甲醛为21.75%,OP-10为2%,有机酸为2%,硫脲为2.5%,液体石蜡为6%时,所得脱漆剂的脱漆效果好,毒性、挥发性和腐蚀性低。 相似文献
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新型塑料脱漆剂的研制 总被引:4,自引:0,他引:4
以二甲基亚砜(DMSO)和乙二醇醚为主溶剂制备出一种高效、低毒、低挥发性的新型塑料脱漆剂,选用异丙醇作为助溶剂,乙基纤维素为增稠剂,研究了不同主溶剂、脱漆温度和搅拌速率对塑料脱漆剂脱漆性能的影响。 相似文献
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根据水解原理,以NaOH为主溶剂,CTMAB为表面活性剂,尿素为助溶剂,1,2-丙二醇为辅助添加剂,在恒温水浴条件下制备了一种针对食品罐用镀锡钢板的无机碱性脱漆剂。考察了主溶剂、表面活性剂、助溶剂及辅助添加剂的种类、用量以及温度对脱漆效率的影响,同时探讨了脱漆剂的理化性能、综合性能、挥发速率及腐蚀性。结果表明:当NaOH为5.0 g,CTMAB为0.3 g,尿素为0.6 g,1,2-丙二醇为0.2 g,在70~75℃时,所得脱漆剂的脱漆效果最高,挥发性和腐蚀性低,3~5 m in内可使镀锡钢板底色样板漆膜软化、脱落。 相似文献
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以苯甲醇为主溶剂、双氧水为促进剂、烷基酚聚氧乙烯醚为乳化剂、苯并三氮唑为缓蚀剂、水溶性纤维素为增稠剂,研制了一种水基中性脱漆剂,探讨了主要成分及工艺参数对脱漆效果的影响.结果表明,当双氧水(质量分数为30%)和苯甲醇质量比约为60∶40时,得到的脱漆剂外观细腻光滑,pH为中性,对人体伤害小,褪漆效率高(室温下于15 min内可将飞机轮毂上的漆膜完全褪除干净),稳定性好,循环使用率高. 相似文献
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报道8%烯效唑微乳剂(ME)的制备方法。以m(甲醇):m(乙酸乙酯)=3:5为溶剂,以ME-A为乳化剂,异丁醇为助表面活性剂,乙二醇为防冻剂,自来水为介质配制的烯效唑ME,经热贮、冷藏稳定性等测定,各项质量指标合格。其优越性显著高于烯效唑可湿性粉剂(WP)。 相似文献
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The effect of water soluble hydrophobically modified ethylene oxide urethane (HEUR) thickener on coalescent free wall paints was studied. Three systems were looked at: latex/thickener blends, model paints (containing no fillers that could have an effect on paint rheology) and satin paints (PVC 30%). The latexes used were a styrene/butylacrylate copolymer, designed for coalescent free wall paints. A full factorial statistical experimental design was employed to study the effect of latex and formulation variables on the viscosity response for the full range of shear rates encountered in paint application. The factors considered in the design were total latex surface area, polymerization surfactant level, thickener type and thickener concentration. The surfactant level was varied between 0.85 and 1.71 parts. The two HEUR thickeners were selected based on the manufacturer's claim that they exhibited good performance at different shear rates. The thickener levels were the extremes recommended by the manufacturer. Measurements were done on Haake, Rheometrics, Brookfield and ICI Cone & Plate rheometers. Total latex surface area and the thickener level are the two significant parameters for latex thickener blends and for model paints at the same significance level, this indicates good correlation between the two systems. The introduction of clay as a filler decreases the effect of all parameters studied. 相似文献
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聚氨酯缔合增稠剂增稠机理及增稠效果研究进展 总被引:4,自引:0,他引:4
聚氨酯缔合增稠剂以其优异的增稠效果和顺应环保的特性而在涂料工业中得到迅速发展,其特殊的亲水疏水链段的共同作用,在乳液中形成缔合网络结构,大大提高了其增稠效果。另外,增稠剂使用中内部和外部影响因素的变化如分子量的大小、亲水和亲油链段的选择、以及表面活性剂的加人都会影响到其增稠效果。 相似文献