一种新型塑料脱漆剂的设计与研究

The Design and Study of A New Plastic Paint Remover

以N,N-二甲基甲酰胺为主溶剂、环己酮为助溶剂,水为稀释剂,氢氧化钠为促进剂,十二烷基苯磺酸钠为表面活性剂,液体石蜡为封闭剂,设计了一种新型低毒、低挥发性、环境污染小,低成本的塑料脱漆剂。分别研究了溶剂、促进剂配比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对脱漆剂挥发速度的影响。结果表明,N,N-二甲基甲酰胺质量分数为15%,环己酮为3%,水为54%,氢氧化钠为20%,十二烷基苯磺酸钠为2%,液体石蜡为6%时,所得脱漆剂效果好,毒性、腐蚀性和挥发性低。

A new low toxicity,volatility and environmental pollution plastic paint remover was prepared with N,N-dimethyl formamide（DMF） as the primary solvent,cyclohexanone as assistant solvent,water as thinning agent,sodium hydroxide as accelerator,sodium dodecyl benzene sulphonate as surfactant,thiourea as inhibitor,and liquid olefin as sealant.The influences of the ratio of primary to assistant solvent,contents of sodium hydroxide and surfactant on the plastic paint remover effect were studied.And the effect of liquid olefin on volatility rate of the plastic paint remover was discussed.It showed that a low toxicity,corrosion and volatility plastic paint remover was obtained when the composition was as follows（mass fraction）： 15% DMF,3% cyclohexanone,54% water,20% sodium hydroxide,2% sodium dodecyl benzene sulphonate,and 6% liquid olefin.The plastic paint remover had good paint removing effect.