有机溶剂中温法溶出光伏组件封装材料乙烯-醋酸乙烯酯  

Study on EVA dissolution from the solar panel by an organic solvent at medium temperature

作　　者：焦月潭 陈钦 李登新[1] 王凡 马梦蝶 JIAO Yuetan;CHEN Qin;LI Dengxin;WANG Fan;MA Mengdie(School of Environmental Science and Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《化工环保》2021年第2期179-183,共5页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金钢铁联合基金项目(U1660107);上海市生态环境局资助项目(沪环科[2019]第10号)。

摘　　要：采用有机溶剂邻二氯苯中温法溶出模拟光伏组件的封装材料乙烯-醋酸乙烯酯(EVA),探究了不同条件下EVA的溶出率及模拟组件的分离率,通过正交实验确定了有机溶剂中温法处理EVA的最佳条件。实验结果表明,在反应温度160℃、固液比(光伏组件个数与邻二氯苯体积之比,个/mL)4∶100、搅拌转速800 r/min、反应时间240 min的最佳条件下,EVA的溶出率为95.0%,模拟组件的分离率达100%。各影响因素的主次顺序为反应温度>反应时间>搅拌转速>固液比。反应前后邻二氯苯的主要官能团未发生变化。We had studied the dissolution rate and separation rate of the ethylene vinyl acetate(EVA),which is the photovoltaic module’s packaging material.By using an o-dichlorobenzene at medium temperature for a simulated system under different conditions.Meanwhile,the process’s optimal conditions were determined using the orthogonal experiment.Nonetheless,the EVA dissolution rate is 95.0%and the separation rate can reach 100%under the optimal conditions of 160℃reaction temperature,a solid-liquid ratio of 4∶100,a stirring speed of 800 r/min,and a reaction time of 240 min.Moreover,those factors’effects are ranked as the following:the reaction temperature>reaction time>stirring rate>solid-liquid ratio.Finally,o-dichlorobenzene’s main functional groups did not change before and after the reaction.

关 键 词：光伏组件 乙烯-醋酸乙烯酯 邻二氯苯 有机溶剂中温法 

分 类 号：TQ031.7[化学工程]