氨烃基聚硅氧烷的应用性能研究

Application performance of amino silicones

以N(β氨乙基)γ氨丙基聚二甲基硅氧烷ASO1为例,利用差热分析仪、凝胶渗透色谱、扫描电镜等仪器对氨烃基聚硅氧烷的高分子物理性能和应用性能进行了系统研究。结果表明,侧链引入N(β氨乙基)γ氨丙基后,氨烃基聚硅氧烷的玻璃化温度Tg、介电常数ζ比主链结构相同的聚二甲基硅氧烷有所提高,粘温变化率、热耗损等相应增大;应用试验则表明,氨烃基聚硅氧烷的平均分子量增加,氨值增大,其柔软效果增强,其弱酸性使用条件以及适度较高的固化温度,有助于改善氨烃基聚硅氧烷的柔软效果。氨烃基聚硅氧烷不仅对纤维束有良好的松散作用,还可提高织物的断裂和撕破强度以及染色牢度,并产生抗静电效果。

Using aminoethylaminopropyl polysiloxane as an example, the physical properties and application performance of amino silicones have been systematically investigated by instruments such as DSC, PGC, SEM and so on. Experiment results indicate that the physical properties of silicone could be influenced by the polysiloxane side chain, aminoethylaminopropyl group in siloxane polymer backbone make the silicone in physical properties such as glass transition temperature, dielectric constant, temperature dependence of the viscosity and silicone weight loss at high temperature, be bigger than those of methyl silicone. Application results show that the bigger the average molecular weight and amino number of amino silicone is, the more softening tactile of the treated fabrics will be. Acidic condition and a higher baking temperature can impart the finished fabrics of amino silicone with a better softening hand. In utilizing experiment, it is found that the fluffy handle, bursting and tearing strength, the dye fastness as well as antistatic of the finished fabrics can also be improved by amino silicone.