PDMS/SiO_(2)改性密胺海绵的制备及性能研究  

Study on preparation and performance of PDMS/SiO_(2) modified melamine sponge

作　　者：苗成朋 郭琳琳[1] 王洪玲[1] 周自成[1] 李笑笑 韩凯旭 Miao Chengpeng;Guo Linlin;Wang Hongling;Zhou Zicheng;Li Xiaoxiao;Han Kaixu(Department of Chemistry and Chemical Engineering,Cangzhou Normal University,Cangzhou 061001;Cangzhou Mingzhu Lithium Separator Company Limited,Cangzhou 061001)

机构地区：[1]沧州师范学院化学与化工系,沧州061001 [2]沧州明珠锂电隔膜有限公司,沧州061001

出　　处：《化工新型材料》2022年第7期262-266,共5页New Chemical Materials

基　　金：河北省科技厅大中学生科技创新能力培育专项(202251001010163);沧州市科技局重点研发计划项目(204104003);沧州师范学院校内科研基金重点项目(XNJJLZD2021001)。

摘　　要：以密胺酯海绵为基体,通过端羟基聚二甲基硅氧烷(H-PDMS)与正硅酸乙酯(TEOS)反应生成低表面能聚硅氧烷(PDMS),利用疏水气相纳米SiO_(2)构造粗糙度,将海绵在PDMS/SiO_(2)复合溶液中充分浸润后取出,干燥固化后制得超疏水亲油海绵。通过红外光谱、扫描电镜、接触角测试仪等手段对改性海绵的官能团、微观结构和疏水性进行表征和测试。结果表明:海绵疏水性能随着复合溶液中SiO_(2)粒子含量增加而逐渐增加,当SiO_(2)与PDMS质量比为0.3时,海绵的水接触角大于150°,具有超疏水性,可以用于油水混合物的分离,并具有良好的循环使用性能。With the melamine sponge as the substrate,the low surface energy material(PDMS) was generated by the reaction of end-hydroxy polydimethylsiloxane(H-PDMS) and ethyl orthosilicate(TEOS),and the hydrophobic gas-phase nano-SiO_(2) was used to construct the roughness,and the sponge was immersed in the PDMS solution containing SiO_(2) and removed after full wetting,and the superhydrophobic lipophilic sponge was made after drying and curing.The functional groups,microstructure and hydrophobicity of the modified sponges were characterized and tested by infrared spectroscopy,scanning electron microscopy and contact angle tester.Results shown that the hydrophobic performance of the sponge gradually increased with the increase of SiO_(2) particle content in the composite solution,and when the particle content increased to 0.3,the water contact angle of the sponge with superhydrophobicity reached 151°,which can be used for the separation of oil-water mixtures and had good recycling performance.

关 键 词：密胺海绵 聚硅氧烷 超疏水 油水分离 

分 类 号：TQ317.4[化学工程—高聚物工业]