抗菌超疏水结构生色织物的制备及性能

Preparation and properties of structural color fabrics with antibacterial and superhydrophobic functions

摘要:

采用无皂乳液聚合方法,以甲基丙烯酸甲酯(MMA)、丙烯酸叔丁酯(t-BA)和丙烯酰氧乙基三甲基氯化铵(DAC),合成不同粒径的P(MMA/t-BA/DAC)聚合物微球,通过雾化沉积法在黑色涤纶织物上构建结构色,采用聚二甲基硅氧烷(PDMS)处理结构色织物。对P(MMA/t-BA/DAC)聚合物微球及结构色织物进行了红外光谱、扫描电镜、粒径、反射光谱、静态接触角和抗菌性能测试。结果表明,通过改变合成过程中单体比例可以得到不同粒径的P(MMA/t-BA/DAC)聚合物微球,可在涤纶织物上形成蓝色、紫色、蓝紫色、绿色和红色5种不同颜色的结构色。结构色织物对大肠杆菌(E.coli)和金黄色葡萄球菌(S.aureus)的抑菌率可达到99%以上,表现出了优异的抗菌性能。经PDMS处理后的结构色织物,其接触角可以达到150°以上,表现出了超疏水性能,可赋予结构色织物防沾污自清洁的功能。

Abstract:

P (MMA/t-BA/DAC) polymer microspheres with different particle sizes were synthesized by soap free? polymerization using methyl methacrylate (MMA), tert butyl acrylate (t-BA) and acryloxyethyl trimethylammonium chloride (DAC). Structural color was constructed on black polyester fabric by atomization deposition method, and the structural color fabric was treated with polydimethylsiloxane (PDMS). P (MMA/t-BA/DAC) polymer microspheres and structural colored fabrics were characterized by infrared spectroscopy, scanning electron microscopy, particle size, reflectance spectroscopy, static water contact angle, and antibacterial properties test. The experimental results showed that P (MMA/t-BA/DAC) polymer microspheres with different particle sizes could be obtained by changing the monomer ratio during the synthesis process. And five different structural colors of blue, purple, blue purple, green, and red could be obtained on polyester fabrics. The antibacterial rates of structural colored fabrics against E.coli and S.aureus reached over 99%, demonstrating the excellent antibacterial properties. The structural colored fabric treated by PDMS had a water contact angle over 150° showing superhydrophobic properties, which could endow the structural colored fabric with anti contamination and self-cleaning function.