Abstract

In order to improve the crease resistant property of silk fabric and reduce the tensile strength damage of finished silk fabric, the isocyanate terminated polysiloxane (ITPSI) was prepared with hydrogen terminated polysiloxane (HTPSI) and methylallyl alcohol as raw materials, diphenylmethane diisocyanate (MDI) as functional modifier, and it was used as crease resistant finishing agent for silk fabric. The effect factors of crease resistant properties of finished silk fabric were studied and the crease resistant properties of finished silk fabric were evaluated. The results showed that when the molar mass of HTPSI was 1914 g/mol, the finished silk fabric obtained the best crease resistant property. The optimal conditions of the finishing process was that the dosage of ITPSI crease resistant finishing agent was 60 g/l, the baking temperature was 150 °C, and the baking time was 3 min. Under these finishing conditions, the dry/wet crease recovery angles (DCRA/WCRA) of finished silk fabric were 302.6 ° and 229 °, respectively, both the crease resistant property and the washability were good. There is no apparent effects on tensile strength and whitenesss of finished silk fabric by this treatment. Compared with epoxy modified polysiloxane (EMPSI) crease resistant finishing agent on the market, the silk fabric finished by ITPSI crease resistant finishing agent had better crease resistant effect and less tensile strength damage.

中文翻译：

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异氰酸酯封端的聚硅氧烷的制备及其在真丝织物抗皱整理中的应用

摘要

为了提高真丝织物的抗皱性能，减少成品丝织物的拉伸强度损伤，以氢端基聚硅氧烷（HTPSI）和甲基烯丙基醇为原料，以二苯基甲烷二异氰酸酯（MDI）为原料，制备了异氰酸酯端基聚硅氧烷（ITPSI）。用作功能改性剂，用作丝绸的抗皱整理剂。研究了真丝织物抗皱性能的影响因素，并评价了真丝织物抗皱性能。结果表明，当HTPSI的摩尔质量为1914 g / mol时，成品丝织物具有最佳的抗皱性能。整理工艺的最佳条件是ITPSI耐皱整理剂的用量为60 g / l，烘烤温度为150℃，烘烤时间为3分钟。在这些整理条件下，成品丝织物的干/湿折皱恢复角（DCRA / WCRA）分别为302.6°和229°，抗皱性和耐洗性均良好。通过这种处理对成品丝织物的拉伸强度和白度没有明显影响。与市场上的环氧改性聚硅氧烷（EMPSI）防皱整理剂相比，采用ITPSI防皱整理剂整理的蚕丝织物具有更好的防皱效果，拉伸强度损伤小。