SGER: Surface Treatment of Fibers Using New Silicone Based Surfactants

CTS-0132364Somasundaran，PColumbia USURFACE使用新型有机硅基表面处理剂对纤维进行处理用于制造各种防护屏障的纤维和织物通常要进行整理操作，以获得所需的表面性能。虽然其中许多工艺已经实践了30多年，例如在纺织行业，但仍有显著的工艺变化。工艺开发和配方优化主要是通过经验方法建立的，而不了解这些工艺的基本原理。这就造成了在将不同的新纤维/织物/膜引入工业时，缺乏对它们进行改性的通用指南。这个探索性项目的目标是对所使用的抛光工艺有一个基本的了解，并阐明影响其表面特征和性能特性的参数的作用。这将涉及试剂吸附/附着力的测量、吸附剂的分子构象和取向、聚合物和表面活性剂等试剂之间的相互作用、由这些试剂形成的表面聚集体的纳米结构以及结果与织物表面性质(如表面电荷、疏水性和流体渗透性)的相关性。由于拟议的研究目标是使用一类基于有机硅的新型表面改性剂来控制表面性能，因此其结果将对织物/膜产品的进步做出重大贡献。诚然，对这些化合物的测试是一种高风险的尝试，但如果完善，应该会产生更安全、更环保、性能更强的产品。为此，下一步将包括研究设计的纳米颗粒与织物的相互作用及其交联性，以获得优异的整理、耐火性、耐久性以及耐化学和生物制剂。

AbstractCTS-0132364Somasundaran, PColumbia USURFACE TREATMENT OF FIBERS USING NEW SILICONE BASED SURFACTANTSFibers and fabrics used for the manufacture of various protective barriers are normallysubjected to finishing operations for desired modification of their surface properties. Although many of these processes have been practiced, for example for over 30 years in the fabric industries, there are significant process variations. The process development and formulation optimization are established mostly through empirical approaches without the understanding of the fundamentals of these processes. This creates a lack of general guidelines for modifying different new fibers/fabrics/membranes as they are introduced into the industries. The objective of this exploratory project is to develop a basic understanding of the finishing processes used and to elucidate the role of the parameters responsible for its surface characteristics and performance properties. This will involve measurement of the reagent adsorption/adhesion, molecular conformation and orientation of the adsorbents, interactions among reagents such as polymers and surfactants, nano-structures of the surface aggregates formed by these reagents andcorrelation of the results to the fabric surface properties such as surface charge, hydrophobicity and fluid penetration. As the proposed research has the objective of controlling the surface properties using a new class of surface modifiers based on silicones, the outcome should make a significant contribution to the advancement of fabric/membrane products. Testing of these compounds is admittedly a high risk attempt but if perfected should lead to safer and eco-friendly products with enhanced performance. Towards this purpose, the next step will involve study of interactions of designed nanoparticles with fabrics and their crosslinking for superior finish, fire resistance, durability and chemical and biological agent resistance.