印刷线路板环保型退膜液的设计开发及性能研究  

Design Development and Performance Research of Eco-Friendly Film Stripping Solutions for Printed Circuit Boards

作　　者：李立清[1,2,3] 章礼旭 薛茹萍 欧阳少波 林刘鹏 张本汉 许永章 LI Liqing;ZHANG Lixu;XUE Ruping;OUYANG Shaobo;LIN Liupeng;ZHANG Benhan;XU Yongzhang(Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China;Ganzhou Key Laboratory of Applied Electrochemistry of Jiangxi Province,Ganzhou 341000,China;Yichun Lithium New Energy Industry Research Institute,Jiangxi University of Science and Technology,Yichun 336023,China;Jiangxi Xin Feng Zheng Tian Wei Technology Co.,Ltd.,Ganzhou 341600,China)

机构地区：[1]江西理工大学材料冶金化学学部,江西赣州341000 [2]江西省赣州市应用电化学重点实验室,江西赣州341000 [3]江西理工大学宜春锂电新能源产业研究院,江西宜春336023 [4]江西省信丰正天伟电子科技有限公司,江西赣州341600

出　　处：《材料保护》2024年第4期163-168,178,共7页Materials Protection

基　　金：江西省自然科学基金重点项目(20224ACB203010);江西省高层次高技能领军人才培训工程(2022);江西省赣州市科技计划项目(赣市科发[2021]45号);江西省宜春市科技项目(2023YBKJGG01);江西省研究生创新基金项目(YC2023-S639)。

摘　　要：为了提高印刷线路板退膜液的环保性,通过试验研究确定了以无机碱为主体的环保型退膜液配方:无机碱NaOH 0.5 mol/L,碎膜剂二乙二醇单丁醚10 mL/L,表面活性剂醇类R 5 mL/L,护锡剂柠檬酸钾1 g/L,其余为纯水。该退膜液无色透明,状态稳定,在温度50℃的条件下进行退膜,退膜时间在50~70 s以内,膜碎大小为5~10 mm,锡厚变量均值低于0.5μm,氨氮值为4.632 mg/L。将该退膜液与同产线产品进行对比,发现两者退膜性能极为接近,而环保型退膜液具有更低的氨氮值和化学需氧量(COD)值,在满足生产需求的同时也能有很好的环保性,从而降低了退膜废液的处理成本。In order to improve the environmental friendliness of the film stripping solution for printed circuit boards,through experimental re-search,the formula of the eco-friendly film stripping solution with inorganic alkali as the main component was determined to contain:inorganic base NaOH at 0.5 mol/L,film breaker diethylene glycolmonobutyl ether at 10 mL/L,surfactant alcohols R at 5 mL/L,tin protectant potassium citrate at 1 g/L,with the remainder pure water.The film stripping solution was found to be colorless and transparent,maintaining a stable state.Under the condition of a temperature of 50℃,the film was removed within 50~70 s,the size of the film ranged from 5 to 10 mm,the average tin thickness variable was less than 0.5μm,and the ammonia nitrogen value was measured at 4.632 mg/L.Comparing the film strip-ping solution with products from the same production line,it was found that the film stripping performance of the two was extremely close.The eco-friendly film stripping solution exhibited lower ammonia nitrogen value and chemical oxygen demand(COD)values,which not only met production needs but also offered good environmental friendliness,thereby reducing the treatment cost of the film stripping waste liquid.

关 键 词：印刷线路板 退膜液 环保 

分 类 号：X781[环境科学与工程—环境工程]