阅读说明：本技术 一种高分子乳化剂的制备方法 (Preparation method of high-molecular emulsifier ) 是由 倪俊 于 2019-11-26 设计创作，主要内容包括：本发明属于化工助剂加工领域,具体涉及一种高分子乳化剂。一种高分子乳化剂及其制备方法,包括如下步骤：1)、将聚异丁烯丁二酸酐20-40份,脂肪醇聚氧乙烯醚20-40份在20-30摄氏度450nm光照下进行酯化反应；2)、将得到的聚异丁烯丁二酸脂肪醇聚氧乙烯醚酯的在200-300摄氏度下与15-25份过硫酸铵和20-40份的氢氧化钠进行反应得到初步乳化剂；3)、将步骤2)中得到的初步乳化剂中加入交联剂和消泡剂。本发明所产品性质稳定,而且反应条件简单,能耗较少,绿色环保。(The invention belongs to the field of chemical auxiliary processing, and particularly relates to a high-molecular emulsifier. A high molecular emulsifier and a preparation method thereof comprise the following steps: 1) carrying out esterification reaction on 20-40 parts of polyisobutylene succinic anhydride and 20-40 parts of fatty alcohol-polyoxyethylene ether at 20-30 ℃ under the illumination of 450 nm; 2) reacting the obtained polyisobutene succinic acid fatty alcohol polyoxyethylene ether ester with 15-25 parts of ammonium persulfate and 20-40 parts of sodium hydroxide at 200-300 ℃ to obtain a primary emulsifier; 3) and adding a cross-linking agent and a defoaming agent into the primary emulsifier obtained in the step 2). The product of the invention has stable property, simple reaction condition, less energy consumption and environmental protection.)

1. The preparation method of the polymer emulsifier is characterized by comprising the following steps:

1) carrying out esterification reaction on 20-40 parts of polyisobutylene succinic anhydride and 20-40 parts of fatty alcohol-polyoxyethylene ether at 20-30 ℃ under the illumination of 450 nm;

2) reacting the obtained polyisobutene succinic acid fatty alcohol polyoxyethylene ether ester with 15-25 parts of ammonium persulfate and 20-40 parts of sodium hydroxide at 200-300 ℃ to obtain a primary emulsifier;

3) and adding a cross-linking agent and a defoaming agent into the primary emulsifier obtained in the step 2).

2. The method for preparing a polymeric emulsifier according to claim 1, wherein: in the step 1), 30 parts of polyisobutylene succinic anhydride and 30 parts of fatty alcohol-polyoxyethylene ether are adopted.

3. The method for preparing a polymeric emulsifier according to claim 1, wherein: in the step 2), the ammonium persulfate is 20 parts, and the sodium hydroxide is 30 parts.

4. The method for preparing a polymeric emulsifier according to claim 1, wherein: the main component of the cross-linking agent in the step 3) is any one of triethylene tetramine, dimethylamino propylamine and diethylamino propylamine and a composition thereof.

5. The method for preparing a polymeric emulsifier according to claim 1, wherein: the defoaming agent in the step 3) mainly contains organosiloxane.

Technical Field

The invention belongs to the field of processing of chemical additives, and particularly relates to a preparation method of a high-molecular emulsifier.

Background

The emulsifier is generally divided into 3 types, namely a traditional micromolecule emulsifier, a reactive emulsifier and a polymer emulsifier. The traditional small molecular emulsifier can be brought into a final product and can be transferred to the surface of a film in the process of emulsion film forming, so that the glossiness and the water resistance of the film are reduced. Although the reactive emulsifier can avoid or overcome the defects of the small molecular emulsifier, the viscosity and the particle size of the emulsion are increased to a certain extent, so that the stability of the system is reduced. The structure of the polymer emulsifier is basically the same as that of the water-based varnish, so that the compatibility of the polymer emulsifier and the water-based varnish is greatly improved, the particle size of the emulsion is reduced, and the film-forming glossiness is increased.

Disclosure of Invention

The invention researches and develops a polymer emulsifier, and aims to: provides a green and environment-friendly softening agent.

The technical scheme is as follows:

a preparation method of a high molecular emulsifier comprises the following steps:

1) carrying out esterification reaction on 20-40 parts of polyisobutylene succinic anhydride and 20-40 parts of fatty alcohol-polyoxyethylene ether at 20-30 ℃ under the illumination of 450 nm;

2) reacting the obtained polyisobutene succinic acid fatty alcohol polyoxyethylene ether ester with 15-25 parts of ammonium persulfate and 20-40 parts of sodium hydroxide at 200-300 ℃ to obtain a primary emulsifier;

3) and adding a cross-linking agent and a defoaming agent into the primary emulsifier obtained in the step 2).

Preferably, in the step 1), the polyisobutylene succinic anhydride is 30 parts, and the fatty alcohol-polyoxyethylene ether is 30 parts.

Preferably, in the step 2), the ammonium persulfate is 20 parts, and the sodium hydroxide is 30 parts.

Preferably, the main component of the cross-linking agent in the step 3) is any one of triethylene tetramine, dimethylamino propylamine and diethylamino propylamine, and the composition thereof.

Preferably, the defoaming agent in the step 3) mainly contains organosiloxane.

The invention has the beneficial effects that:

the product of the invention has stable property, simple reaction condition, less energy consumption, environmental protection, sufficient raw material source, low production cost, large operation elasticity, easy realization of the production process and the like.

Detailed Description

The present invention will be further described with reference to the following examples.