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含氟丙烯酸酯共聚乳液合成及性能研究

     

摘要

以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)和全氟烷基丙烯酸酯等为主要原料,丙二醇为分子量调节剂,采用非离子阴离子复合乳化剂、氧化还原引发体系、超声微乳化技术,不同的加料方式制备出系列含氟丙烯酸酯乳液,并利用衰减全反射红外光谱(ATR-FTIR)对含氟丙烯酸酯共聚乳液胶膜进行了表征。采用接触角测定方法研究了含氟共聚乳液对织物整理后的表面性能变化,结果显示:乳液整理后的纯棉无纺布的拒水拒醇性大大提高,对水的接触角达到127o左右,对醇的最大接触角达到112o。乳液整理后的PP无纺布拒醇性明显改善,接触角达到101o左右。但拒水性能未见明显提高。%The series fluorinated acrylate copolymers were prepared by selected BA, MMA, AA and fluorinated monomer as the main raw materials, propylene glycol as the molecular regulator, an anion compound emulsifier, redox initiator system, with different way of feeding and pre-emulsificatiou of using ultrasonic wave technology. And the film of fluorine containing acrylate copolymer emulsion were characterized by using attenuated total reflection infrared spectrometry (ATR-FTIR). The change of surface properties of after textile finishing were measured by using the contact angle methods with containing fluorine copolymerization emulsion. The results showed that after emulsion finishing the property of water-repellency or alcohol-repellency of pure cotton non-woven fabric was greatly improved, and the contact angles of the treated cotton non-woven fabrics for water and for ethanol reached 127~ and 112~, respectively. The ethanol-repellent property of the treated PP non-woven fabrics was improved from spread to 101~ of the contact angles reached for ethanol. But water-repellent performance did not see obviously improved.

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