反电荷氨基硅/羧基硅共混乳液的膜形貌与应用性能

Film Morphology and Application Property of Counter Charged Compound Emulsion from Amino Functional Polysiloxane and Carboxyl Containing Polysiloxane

以质量分数为25%的阳离子N-β-氨乙基-γ-氨丙基聚二甲基硅氧烷微乳(ASE)和阴离子羧烃基聚硅氧烷微乳(CSE)为原料,经水相静电自组装、团聚形成反电荷ASE/CSE共混乳液。以单晶硅作载膜基质,采用静态浸渍法将ASE/CSE附着在基质表面使之成膜,然后用原子力显微镜(AFM)、电脑测控柔软度仪等仪器对ASE/CSE的成膜形貌及应用性能进行研究。结果表明,ASE/CSE具有良好的成膜性能,可在单晶硅基质表面成膜,与单组分硅乳成膜形貌明显不同。在单晶硅表面,ASE/CSE所成的复合硅膜表面很粗糙,平均厚度达12.45nm,存在众多岛屿。共混硅乳ASE/CSE整理棉织物的柔软性能较之空白织物明显提升,并赋予织物特殊的油滑手感。

Using the cationic N-β-aminoethyl-T-aminopropyl polysiloxane microemulsion（ASE） and the anionic carboxyl-containing polysiloxane microemulsion（CSE） as experimental materials, which microemulsion mass concentration is 25%. ASE and CSE are mixed together to self-assemble or aggregate via electrostatic interaction to form counter charged microemulsion compound ASE/CSE. With the silicon wafers as the film forming substrate, ASE/CSE is anchored on the substrate surface through static-dipping method. The film morphology and application properties of the ASE/CSE film self-assembled on silicon wafer are studied and investigated by atomic force microscope（AFM） and softness instrument. Experimental results indicate that ASE/CSE takes on a good form-film property, which has can be adsorbed onto the silicon wafer surface to fabricate a film. However, its film morphology is widely different from the single microemulsion. The ASE/CSE film on the silicon wafer shows a rough surface, which has many islands on its surface, and the average thickness reaches 12.45nm. The softness of cotton fabrics treated by ASE/CSE increase obviously compared with untreated cotton fabrics. Meanwhile, the cotton fabrics acquire particular oily and smooth tactile handle.