Preparation method of quaternary ammonium type positive ion polyurethane base polyether block hydrophilic silicone softener ultra-micro emulsion and product thereof

Abstract

The invention relates to a preparation method of quaternary ammonium type positive ion polyurethane base polyether block hydrophilic silicone softener ultra-micro emulsion and a product thereof. The preparation method comprises the steps that raw materials comprising polymerization monomers, a modifier, an adjuvant and distilled water are prepared; dehydration pre-treatment is conducted on polyether ether glycol; the pre-polymerized reaction is conducted on the dehydrated polyether ether glycol, an end hydroxyl polysiloxane linear body and diisocyanate under the catalyst function of a polymerization catalyst, and a prepolymer is prepared; the chain extension reaction is conducted on the prepolymer, a tertiary amine chain extender agent and an aminosilane coupling agent and an intermediate is prepared; a polymerization stropping agent is added and the reaction is stopped, and a quaternization reagent is added for conducting a quanternization reaction; a product is prepared through emulsification. The preparation method of quaternary ammonium type positive ion polyurethane base polyether block hydrophilic silicone softener ultra-micro emulsion can give unique soft waxy style for various fabric weaving products, is used for improving the soft feel of various kinds of fabric products, does not affect the hydrophilia of natural fiber fabrics, and has good application performance and wide application prospects.

Description

technical field [0001] The present invention relates to the hydrophilic silicone softener used for improving the soft style hand feeling of cellulose fiber textiles, protein fiber textiles, polyester fiber textiles and cellulose fibers, protein fibers, polyester fiber blends and interwoven textiles, specifically The invention relates to a preparation method of a quaternary ammonium cationic polyurethane-based polyether block hydrophilic silicone softener microemulsion and a product thereof. Background technique [0002] At present, silicone polymer emulsions are often used in the soft style finishing of various textile products. In order to overcome the water repellency of finished textiles derived from the weak polarity of silicone polymer softener molecules, polyether-modified hydrophilic silicone polymer softener products are rapidly replacing traditional silicone softener products. Polyether-modified hydrophilic silicone softeners generally graft and block polyether cha...

AI Technical Summary

Problems solved by technology

[0012] Similarly, although the amino group and the polyether chain link of the polyether block hydrophilic modified amino silicone oil softener prepared by this method are all in the main chain structure of the softener molecule, its amino group is a secondary amino group structure and its content is relatively high. Low, so the adsorption capacity of the softener molecules to the fibers and the performance of tolerance to fluctuations in application process conditions are poor

At the same time, the polymer skeleton of the softener is polysiloxane, which imparts a hand feeling style to the fabric that is no different from the "soft and slippery" soft style characteristics of conventional amino silicone oil or polyether modified hydrophilic amino silicone oil softener products. Waxy" soft style characteristics