长链羧基聚硅氧烷的膜形貌、乳化及其应用性能

运用场发射扫描电镜(FESEM)及原子力显微镜(AFM)对十二烷基/羧基改性聚硅氧烷(RCAS)成膜形貌进行观测,测试结果表明,RCAS可在纤维表面形成均匀平整的有机硅膜,该膜使原有纤维表面沟壑、块状物消失;RCAS在单晶硅表面形成微观非均一相硅膜,表面粗糙,在扫描高度为5 nm、扫描范围为2μm×2μm条件下,可观察到膜表面存在许多竖直的尖峰。考察RCAS乳液及与氨基硅乳共混乳液在棉纤维织物上的应用性能,测试结果表明,织物经RCAS乳液及共混乳液整理后,柔软性能较之空白织物均提升;且随着RCAS乳液含量的增加,共混乳液整理织物的白度和亲水性提升,柔软性能下降。

Film Morphology, Emulsification of Dodecyl/Carboxyl Polysiloxane and Its Application Performance

The film morphology of dodecyl/carboxyl modified polysiloxane(RCAS) on cotton fabric or the silicon water was investigated by field emission scanning electron microscope(FESEM) and atomic force microscope(AFM).Results showed that RCAS formed a relatively smooth film on the fabric surface.With the fabric treated by RCAS,the grooves on the fabric surface disappeared.RCAS formed a micromorphology inhomogeneous and unsmooth film on the silicon water.There were many high or low bright peaks distributed at random on the film surface,especially as the field was 2 μm×2 μm and the date scale was 5 nm in the AFM observation.The application performance of RCAS emulsion and compounded emulsion on the cotton fabric was also investigated.The application results indicated that RCAS emulsion and compounded emulsion provided the treated fabrics with good softness,compared to untreated fabric.Moreover,the higher the concentration of RCAS emulsion in the compounded emulsion,the better the hydrophilicity and the whiteness of the treated fabrics.The softness of the treated fabrics decreased.