基于瓜尔胶生物聚合物的纺织品调理剂的先进环保配方
Advanced eco-friendly formulations of guar biopolymer-based textile conditioners
摘要：
织物调理剂是用于赋予纺织品柔软性和香味的家用产品。它们是在囊泡中自组装的阳离子双链表面活性剂的胶体分散体。这些表面活性剂主要来源于棕榈油的化学改性。降低这些表面活性剂的含量允许获得具有较低环境影响的产品。这种减少，没有对软化剂的特性和它的性能的不利影响，可以通过添加亲水性生物聚合物来实现。在这里，我们回顾了瓜尔胶生物聚合物改性与阳离子或羟丙基的配方的物理化学性质的作用。电子和光学显微镜，动态光散射，X-射线散射和流变学的囊泡分散在不存在和存在的瓜尔胶生物聚合物进行了分析。最后，通过扫描电子显微镜和基于荧光显微镜的新协议检查新制剂在棉织物上的沉积。使用这种方法，可以量化表面活性剂在棉纤维上的沉积。结果表明，这里遵循的方法可以促进可持续家居护理产品的设计。
英文摘要：
Fabric conditioners are household products used to impart softness and fragrance to tex-tiles. They are colloidal dispersions of cationic double chain surfactants that self-assemble in vesicles. These surfactants are primarily derived from palm oil chemical modification. Reducing the content of these surfactants allows to obtain products with lower environmental impact. Such a reduction, without adverse effects on the characteristics of the softener and its performance, can be achieved by adding hydrophilic biopolymers. Here, we review the role of guar biopolymers modified with cationic or hydroxyl-propyl groups on the physicochemical properties of the formulation. Electronic and optical microscopy, dynamic light scattering, X-ray scattering and rheology of vesicles dispersion in absence and in presence of guar biopolymers are analyzed. Finally, the deposition of the new formulation on cotton fabrics is examined through scanning electron microscopy and a new protocol based on fluorescent microscopy. With this methodology it is possible to quantify the deposition of surfactants on cotton fibers. The results show that the approach followed here can facilitate the design of sustainable home-care products.
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