Aqueous water-and-oil repellant dispersion composition

A technology of water-based dispersion liquid and waterproof and oil-repellent agent, which can be used in textiles, papermaking, fiber treatment, etc., and can solve problems such as poor mechanical stability

CN101486823AInactive Publication Date: 2009-07-22CHANGZHOU LINGDA CHEM
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2009-07-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a water-proof and medicinal-oil resistant watercraft dispersion liquid compound which comprises the following components according to weight percentage: 15-30 percent of fluorine-containing polymer, 1-5 percent of surface active agent, and 68-80 percent of watercraft medium, wherein, the fluorine-containing polymer is formed by the copolymerization of the following ingredients according to weight percentage: 30-70 percent of fluorine-containing monomer, 3-10 percent of polymerizable monomer containing confining polyisocyanate radical and 25-65 percent of polymerism monomer; the surface active agent consists of the following ingredients according to weight percentage; 10-50 percent of cation surface active agent containing two quaternary ammonium molecules, 20-70 percent of nonionics with the HLB value ranging from 3 to18, and 5-30 percent of response type emulsifier containing unsaturated vinyl and polyoxyethylene compound; and the watercraft medium is de-ionized water or the mixture of de-ionized water and hydrophilic organic solvent. The compound leads the processed textile not only to have good waterproof and oil resistance properties, but also to have high mechanical stability.
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Description

technical field

[0001] The invention relates to an aqueous dispersion liquid composition of a water-repellent and oil-repellent agent for textiles and a preparation method thereof, which are used for making the treated textiles have good water-repellent and oil-repellent properties. Background technique

[0002] Textiles, no matter whether they are composed of natural fibers or synthetic fibers, must be specially treated with water and oil repellent agents in order to have water and oil repellent properties. In order to improve the waterproof and oil-repellent performance of treated fabrics and reduce the pressure of sewage treatment, the performance of waterproof and oil-repellent agents has been continuously improved. The active component of the waterproof and oil-repellent agent is mainly fluorine-containing propylene copolymer. In order to improve the fastness of the treated fabric, there is a method of adding an external linking agent. As CN200580025545.7 introduces, w...

Examples

Embodiment 1

[0077] In a 5L glass three-necked flask, add Gemini surfactant 12-2-1215g, alkyl allyl polyoxyethylene propyl ether 72g, Pingpingjia 0-1513g, dipropylene glycol 280g, deionized water 2100g. The above-mentioned material is heated to 49~51 ℃ by brine bath method, and keeps the temperature within this range. Then add perfluoroalkyl ethyl methacrylate - referred to as FMA, its molecular formula is CF 3 CF 2 (CF 2 CF 2 )nCH 2 CH 2 OCO(CH 3 )=CH 2 , wherein n=2~6, 5.88g, 124g of octadecyl methacrylate, 150g of 2-ethylethyl methacrylate, 50g of hydroxyethyl methacrylate, referred to as GTMA containing 2 blocked polyisocyanates 68g of methacrylic ester of acid group, its molecular structure is shown in formula VI, n-dodecyl mercaptan 3.2g. After feeding the material, start the mixer to stir the material, emulsify for 30 minutes, transfer to a 6-liter stainless steel bucket, pass through a high-speed shear disperser, shear and disperse at a high speed of 5000rpm for 15 minutes,...

Embodiment 2

[0080] In a 5L glass three-neck flask, add Gemini surfactant 12-2-12 15g, alkyl allyl polyoxyethylene propyl ether 72g, Pingpingjia 0-20 13g, dipropylene glycol 280g, deionized water 2100g. The above-mentioned material is heated to 49~51 ℃ by brine bath method, and keeps the temperature within this range. Then add perfluoroalkyl ethyl methacrylate - referred to as FMA, its molecular formula is CF 3 CF 2 (CF 2 CF 2 )nCH 2 CH 2 OCO(CH 3 )=CH 2 , where n=2~6, 5.88g, 124g of octadecyl methacrylate, 50g of N-methylolacrylamide, 150g of 2-ethylethyl methacrylate, referred to as GIMA containing 2 blocked polyiso 68g of methacrylic acid ester of cyanate group, its molecular structure is shown in formula VII, n-dodecanethiol 3.2g. After feeding the material, start the mixer to stir the material, emulsify for 30 minutes, transfer to a 6-liter stainless steel bucket, pass through a high-speed shear disperser, shear and disperse at a high speed of 5000rpm for 15 minutes, and then ...