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在乙酸乙酯稀溶液中,将氨值为0.6 mmol/g、Mn=14100的聚(N-β-氨乙基-γ-氨丙基甲基硅氧烷-co-二甲基硅氧烷)(ASO)与羧值为0.3 mmol/g、Mn=4048的聚[γ-(β-羧基丙烯酰胺基)丙基甲基硅氧烷-co-十二烷基甲基硅氧烷-co-二甲基硅氧烷](RCAS)共混自组装,可获得一种静电复合的聚硅氧烷ASO/RCAS.以单晶硅和棉纤维织物作载膜基质,用原子力显微镜(AFM)和光电子能谱(XPS)等仪器对ASO/RCAS的膜形貌及应用性能进行了研究.结果表明,由ASO和RCAS复合成的ASO/RCAS,微观形貌呈连续丘陵状凸起,膜厚度为1.501 nm,在2μm×2μm扫描范围内其均方根粗糙度为0.5 nm.将其附着固定在棉纤维表面,ASO/RCAS不仅能引起纤维表面条纹状沟壑消失,而且能使纤维表面的均方根粗糙度从处理前的24.6 nm降低为处理后的11.7 nm.另外,用ASO/RCAS处理的棉织物,其弯曲刚度明显降低、亲水性增加,且表面有舒适的油润感.当ASO与RCAS的质量比为1∶1时,复合聚硅氧烷ASO/RCAS的应用性能最佳.
In a dilute ethyl acetate solution, poly (N-β-aminoethyl-γ-aminopropylmethylsiloxane-co-dimethylsiloxane having an ammonia value of 0.6 mmol / g and Mn = ) (ASO) with poly [[gamma] - ([beta] -carboxyacrylamido) propylmethylsiloxane having a carboxyl value of 0.3 mmol / g and Mn = 4048 -co-dodecylmethylsiloxane- - dimethylsiloxane] (RCAS) blends and self-assembly to obtain an electrostatically composited polysiloxane ASO / RCAS. Monocrystalline silicon and cotton fiber fabrics were used as carrier substrates, and atomic force microscopy (AFM) And ASE / RCAS were studied by means of X-ray photoelectron spectroscopy (XPS) and other instruments.The results showed that ASO / RCAS complexed by ASO and RCAS exhibited a continuous hill-like appearance with film thickness Was 1.501 nm and its root mean square roughness was 0.5 nm in the scanning range of 2μm × 2μm.The ASO / RCAS not only caused the disappearance of streaky gully in the fiber surface, but also made the surface of fiber The root mean square roughness decreased from 24.6 nm before treatment to 11.7 nm after treatment.In addition, cotton fabrics treated with ASO / RCAS had significantly lower bending stiffness, increased hydrophilicity and comfortable oily feel on the surface. Quality of ASO and RCAS 1:1, composite silicone ASO / RCAS optimum application performance ratio.