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Process for preparing nano grade amino silicon oil emulsion

An amino silicone oil and nano-scale technology, which is applied in the field of preparation of nano-scale amino silicone oil emulsion, can solve the problems of limited practical application and high emulsifier content, and achieve the effects of small particle size, easy reaction process, and low content

Inactive Publication Date: 2006-11-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nano-emulsion prepared by this method usually has a high emulsifier content (> 14%, w / w), which greatly limits its practical application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In a 250mL round bottom flask, add 2g of cationic emulsifier CTAB and nonionic emulsifier AEO-9, each 1g of AEO-3 is dissolved in 50mL of water, the weight ratio w(CTAB):w(AEO)=2:1 , add 24 mL of octamethylcyclotetrasiloxane D dropwise 4 , and stirred at high speed, then added 2.4mL of amino coupling agent KBM-602 and continued to stir evenly at high speed, and then homogenized on a homogenizer for 15 minutes to obtain a pre-emulsion. In a 250mL round bottom flask, add the remaining cationic emulsifier CTAB in a certain amount of water, gradually raise the temperature to 80°C, add 0.1mL 25% (w / v) Me 4 Add NOH to the pre-emulsion drop by drop, keep it warm for 4 hours, cool down, add glacial acetic acid to neutralize until neutral. The cationic emulsifier CTAB used was 9% (w / w), and the particle size measured by the laser particle size analyzer was 26.9 nm. The scanning electron microscope shows that the particle size is about 20nm, and the particle size distribution i...

Embodiment 2

[0022] With the same operation as Example 1, the difference is that the non-ionic emulsifiers added are TX-4 and TX-10, and the weight ratio of TX-4:TX-10 is 0.01~10:1.

Embodiment 3

[0024] With the same operation as Example 1, the difference is that the temperature is raised to 100 ° C, the laser particle size analyzer particle size measurement is 21.6nm, amino silicone oil molecular weight M w increased to 2.4×10 4 .

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Abstract

The invention discloses a preparing method of nanometer grade amino silicon oil emulsion, which comprises the following steps: 1. dissolving cationic emulsifier and non-ionic emulsifier in the right amount water; dripping octamethyl pyrophosphoramide eptetrasiloxane; stirring at high speed; adding amino coupling; producing pre-emulsion through homogeneity; 2. adding the residual cationic emulsion; heating temperature to polymerization temperature; adding catalyst; dripping pre-emulsion; refluxing; cooling; adding glacial acetic acid to neutralize; producing nanometer grade amino silicon oil emulsion. The invention possesses small-grain radius gel particle, whose average grain size is among 10-50 nm.

Description

technical field [0001] The invention belongs to the field of textile auxiliaries, and relates to a preparation method of nano-level amino silicone oil emulsion. Background technique [0002] Amino silicone oil fabric softener can be cured at room temperature. Amino silicone oil has the characteristics of large adsorption capacity, good film-forming property, and strong binding fastness to fibers. It can improve the softness, wrinkle resistance, elasticity and tear strength of chemical fiber fabrics, and can endow fabrics Soft and smooth to the touch. High-viscosity amino silicone oil can make polyester / cotton blended fabrics have a plump, cotton-like feel; while lower-viscosity amino silicone oil can make fabrics have a smooth silky feel. Amino silicone oil is the most popular fabric finishing agent in the textile industry in recent years. The excellent flexibility of amino silicone oil comes from its basic geometric molecular configuration. Since the main chain of polysil...

Claims

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Application Information

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IPC IPC(8): C08G77/26C08G77/06
Inventor 郑豪秦晓燕方青柴云峰
Owner ZHEJIANG UNIV
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