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Durable antistatic finishing agent for fabrics and preparation method

An antistatic finishing agent and durability technology, which is applied in the field of fabric antistatic finishing agent and its preparation, can solve the problems of poor antistatic durability, antistatic agent not resistant to washing, etc., and achieve durable antistatic performance and firm combination effect

Inactive Publication Date: 2009-11-18
郯城县福尔美工艺品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems that the current fabric antistatic agents are not washable and have poor antistatic durability, and provide a reactive cationic polyurethane fabric antistatic finishing agent with good washing resistance and durability and its preparation method

Method used

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  • Durable antistatic finishing agent for fabrics and preparation method
  • Durable antistatic finishing agent for fabrics and preparation method
  • Durable antistatic finishing agent for fabrics and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 100g of polyethylene glycol (hydroxyl value 56, dried), 32.8g of toluene diisocyanate (TDI), 9g of N-methyldiethanolamine, and 30g of acetone into a 1000ml four-port container equipped with a reflux condenser, a thermometer, and a stirrer in sequence. In the flask, pass through dry nitrogen protection, and react at a constant temperature of 75°C for 3 hours to prepare a polyurethane prepolymer, add 8g of glycerol glycidyl ether and 11g of acetone oxime, raise the temperature to 80°C, react for 3.5 hours, and cool down to 60°C. Add 11 g of dimethyl sulfate, react for 1 hour, then lower the temperature to below 40° C., add water and stir to obtain a reactive cationic polyurethane aqueous emulsion with a solid content of 25%.

Embodiment 2

[0034] Polyoxypropylene-oxyethylene glycol (hydroxyl value 56, dried) 100g, isophorone diisocyanate (IPDI) 41.8g, N-methyldiethanolamine 9g, methyl ethyl ketone 25g, sequentially add the tube, thermometer, and a 1000ml four-neck flask with a mixer, pass through dry nitrogen protection, and react at a constant temperature of 80°C for 3 hours to prepare a polyurethane prepolymer. ℃, react for 3.5 hours, cool down to 70°C, add 8g of dimethyl carbonate, react for 1.5 hours, then cool down to below 40°C, add water and stir to obtain a reactive cationic polyurethane aqueous emulsion with a solid content of 30%.

Embodiment 3

[0036] Hydroxy-terminated oxirane-tetrahydrofuran copolyether (hydroxyl value 75, dried) 110g, 1,6-hexamethylene diisocyanate (HDI) 43.7g, N-methyldiethanolamine 11.9g, dioxane 35g, Sequentially add to a 1000ml four-neck flask equipped with a reflux condenser, a thermometer, and a stirrer, pass through dry nitrogen protection, and react at a constant temperature of 70°C for 3 hours to prepare a polyurethane prepolymer. Add 20g of caprolactam and trimethylolpropane glycidyl ether 11g, heat up to 80°C, react for 3.5 hours, cool down to 60°C, add 16g of iodomethane, react for 2.0 hours, then cool down to below 40°C, add water and stir to obtain a reactive cationic polyurethane aqueous emulsion with a solid content of 30%.

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Abstract

The invention relates to a durable antistatic finishing agent for fabrics and a preparation method. The durable antistatic finishing agent is reactive cationic polyurethane water emulsion with a structure of an epoxy group, a closed isocyanate group, a hydrophilic polyethenoxy ether chain segment and a quaternary ammonium salt cationic group. The preparation method comprises the following steps: (1) preparing polyurethane prepolymer with the hydrophilic polyethenoxy ether chain segment and a structure containing tertiary amine group; (2) adding propanetriol diglycidyl ether or trimethylolpropane glycidyl ether and sealant into the polyurethane prepolymer to prepare crosslinking reactive polyurethane; (3) adding a quaternizing agent into the crosslinking reactive polyurethane to prepare crosslinking reactive cationic polyurethane; and (4) adding water into the crosslinking reactive cationic polyurethane to prepare the reactive cationic polyurethane water emulsion, wherein the mass ratio of the reactive cationic polyurethane to the water is 1:2-6.

Description

technical field [0001] The invention relates to an antistatic finishing agent for fabrics and a preparation method thereof, which is a reactive cationic structure having epoxy groups, blocked isocyanate groups, hydrophilic polyoxyethylene ether segments, and quaternary ammonium salt cationic groups. Polyurethane aqueous emulsion fabric antistatic finishing agent is used for durable antistatic finishing of synthetic fiber fabrics, synthetic fiber and natural fiber blended fabrics. Background technique [0002] At present, the antistatic finishing of fabrics mostly adopts surfactants with good water solubility, including anionic surfactants, cationic surfactants, nonionic surfactants and amphoteric surfactants. These surfactants have extremely strong Water absorption, water solubility. Therefore, it is not particularly resistant to washing and is only temporarily attached to chemical fiber fabrics. Before washing, they have very good antistatic properties, but after washing,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M15/568
Inventor 严欣宁杨文堂唐丽荣星樊丽君董明东刘杰
Owner 郯城县福尔美工艺品厂
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