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Organic-inorganic composite emulsion water-and-oil-repellent finishing agent and application thereof

An inorganic composite, water- and oil-repellent technology, used in fiber treatment, textiles and papermaking, animal fibers, etc., can solve problems such as flammability, pollution, and complex preparation processes, and achieve pollution reduction, good dispersion stability, and good dispersion stability. Water and oil repellency effect

Active Publication Date: 2011-04-06
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process is complicated, and the cost of ethanol is high, flammable and polluting

Method used

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  • Organic-inorganic composite emulsion water-and-oil-repellent finishing agent and application thereof
  • Organic-inorganic composite emulsion water-and-oil-repellent finishing agent and application thereof
  • Organic-inorganic composite emulsion water-and-oil-repellent finishing agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Vinyl functionalized nano-SiO 2 Preparation: Add 100mL deionized water, 0.02g composite surfactant (AEO-9 to SDS mass ratio is 1:1) and 3g γ-methacryloyloxy Propyltrimethoxysilane, heated to 50°C, stirred at high speed for 1.5h to make it evenly dispersed, then added 3mL of ammonia water, continued to stir rapidly, and reacted for 3h to obtain functionalized nano-SiO 2 water dispersion;

[0032] (2) Preparation of organic-inorganic composite emulsion

[0033] Pre-emulsification: Add 0.4g emulsifier (the mass ratio of AEO-9 to SDS is 1:1), 6g methyl methacrylate, 4g butyl acrylate and 0.4g hydroxyethyl methacrylate into the container, and heat Stir for 50min and set aside.

[0034] Polymerization reaction: Add the above-mentioned 3.6g functionalized nano-SiO to a container equipped with a stirrer, a reflux condenser, and a thermometer 2 Water dispersion, 1 / 3 pre-emulsified monomer and 0.02g initiator, after heating up to 80°C, slowly add the remaining pre-emulsif...

Embodiment 2

[0039] (1) Vinyl functionalized nano-SiO 2 Preparation: Add 100mL of deionized water, 0.04g of composite surfactant (the mass ratio of AEO-9 to SDS is 1:1) and 4g of vinyltrimethoxysilane in a container equipped with a stirrer, condenser tube and thermometer, Raise the temperature to 40°C, stir at high speed for 2 hours to make it evenly dispersed, then add 2 mL of ammonia water, continue to stir rapidly, and react for 4 hours to obtain functionalized nano-SiO 2 water dispersion;

[0040] (2) Preparation of organic-inorganic composite emulsion

[0041] Pre-emulsification: Add 0.6g emulsifier (the mass ratio of AEO-9 to SDS is 1:1), 6g methyl methacrylate, 4g butyl acrylate and 0.4g hydroxyethyl methacrylate into the container, and heat Stir for 50min and set aside.

[0042] Polymerization reaction: Add the above-mentioned 2.6g functionalized nano-SiO to a container equipped with a stirrer, a reflux condenser, and a thermometer 2 Water dispersion, 1 / 3 pre-emulsified monomer...

Embodiment 3

[0047] (1) Vinyl functionalized nano-SiO 2 Preparation: Add 100mL of deionized water, 0.03g of composite surfactant (the mass ratio of AEO-9 to SDS is 1:1) and 3g of vinyltrimethoxysilane in a container equipped with a stirrer, condenser tube and thermometer, Raise the temperature to 30°C, stir at high speed for 2 hours to make it evenly dispersed, then add 3 mL of ammonia water, continue to stir rapidly, and react for 4 hours to obtain functionalized nano-SiO 2 water dispersion;

[0048] (2) Preparation of organic-inorganic composite emulsion

[0049] Pre-emulsification: Add 0.8g emulsifier (the mass ratio of AEO-9 to SDS is 1:1) and 6.1g methyl methacrylate, 4.1g butyl acrylate and 0.4g hydroxyethyl methacrylate into the container, at 50 Stir at high speed for 50 min at ℃, set aside.

[0050] Polymerization reaction: Add the above-mentioned 3.4g functionalized nano-SiO to a container equipped with a stirrer, a reflux condenser, and a thermometer 2 Water dispersion, 1 / 3 p...

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Abstract

The invention relates to an organic-inorganic composite emulsion water-and-oil-repellent finishing agent and the application thereof. The preparation method of the finishing agent comprises the following steps of: (1) adding deionized water, composite surface active agent and an ethylene-contained silane coupling agent to a container provided with a stirrer, a reflux condensing tube and a thermometer, stirring at a high speed, adding ammonia, continuously and rapidly stirring and making the material react to obtain a functionalized nano SiO2 aqueous dispersion; and (2) adding the functionalized nano SiO2 aqueous dispersion and parts of monomer emulsified in advance and an initiator to the container provided with the stirrer, the reflux condensing tube and the thermometer, increasing the temperature, slowly dipping the rest monomer emulsified in advance and a fluorinated acrylate monomer, simultaneously dipping the rest initiator, cooling and adjusting the pH value to be 7-8. The finishing agent of the invention has favorable dispersion stability as well as favorable water and oil repellence when applied to textiles, and the preparation method is simple and suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of water-repellent and oil-repellent finishing agents and applications thereof, in particular to an organic-inorganic composite emulsion water- and oil-repellent finishing agent and applications thereof. Background technique [0002] With the development of society and the progress of mankind, people's demand for multifunctional textiles is increasing. Among them, textiles with water and oil repellency are gradually favored by people because of their anti-pollution and self-cleaning properties, and are widely used in clothing fields such as medical personnel clothing, outdoor sportswear, decoration, industry and other fields. Such functional textiles not only meet the needs of social development, but also generate and promote huge economic and social benefits. [0003] Water and oil repellent finishing of fabrics has a long history, and commonly used water and oil repellents are mainly silicone and fluoropolymers. T...

Claims

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Application Information

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IPC IPC(8): C08F220/22C08F220/14C08F220/18C08F220/28C08F2/44C08F2/24C08K9/06C08K3/36D06M15/277D06M11/79D06M101/32D06M101/34D06M101/12D06M101/06
Inventor 蔡再生程德亮徐丽慧彭洪阳
Owner DONGHUA UNIV
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