Preparation method and application of waterproof and oilproof fluorosilicone acrylate finishing agent

A silicone-acrylic, water- and oil-repellent technology, which is used in fiber processing, textiles and papermaking. Performance, soft and slippery hand, the effect of improving fabric quality

Active Publication Date: 2014-02-26
成都德美精英化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the easy crystallization of perfluoroalkyl raw materials, it will inevitably lead to defects such as hard hand feeling and insufficient softness of the finished fabric; moreover, the price of this kind of raw materials is relatively high, and its dosage and quality will affect the waterproof and oil repellency of the fabric. Significant impact

Method used

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  • Preparation method and application of waterproof and oilproof fluorosilicone acrylate finishing agent
  • Preparation method and application of waterproof and oilproof fluorosilicone acrylate finishing agent
  • Preparation method and application of waterproof and oilproof fluorosilicone acrylate finishing agent

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preparation example Construction

[0033] Preparation steps of the present invention are:

[0034] (1), get the following combinations by weight and mix uniformly:

[0035] 400 parts of deionized water, 3-6 parts of cationic surfactant, 1-4 parts of non-ionic surfactant, 50-70 parts of perfluoroalkyl ethyl methacrylate, 5 parts of polyethylene glycol (mono) acrylate ~10 parts, 20-30 parts of alkyl acrylate, 5-10 parts of modified dimethyl silicone oil, 20 parts of alcohol or ether co-solvent;

[0036] (2), homogeneously emulsify the mixture of step (1) at 30-40°C for 15 minutes;

[0037] (3), transfer the reactant of step (2) into a reaction flask equipped with a condenser, nitrogen tube, stirrer, and thermometer, turn on the nitrogen protection and heat to 60°C, and then add 1 to 2 parts by weight of a free radical initiator , stirred and reacted for 8 hours;

[0038] (4) Cool to room temperature and filter to obtain the fluorine-containing silicone acrylic finishing agent.

Embodiment 1

[0041] Weigh 400 grams of deionized water, 3 grams of polymerizable cationic surfactant, 2 grams of TO-5 fatty alcohol polyoxyethylene ether (EO number is 5), perfluoroalkyl (C6-10) ethyl methacrylate 70 grams, 5 grams of methoxypolyethylene glycol (polyethylene glycol molecular weight is 300) methacrylate, 20 grams of octadecyl acrylate, 5 grams of dimethyl hydrogen silicone oil, 20 grams of ethylene glycol, After mixing evenly, place it at 30-40°C for homogeneous emulsification for 15 minutes, transfer it to a 1L four-necked bottle equipped with a condenser, nitrogen tube, stirrer, and thermometer, turn on the nitrogen gas and heat it to 60°C in a water bath. Add 1.8 g of initiator azobisisobutylimidazole hydrochloride (V-50), react for 8 hours, cool to room temperature and filter to obtain polymer emulsion.

Embodiment 2

[0043] Weigh 400 grams of deionized water, 5 grams of polymerizable cationic surfactant, 2 grams of TO-5 fatty alcohol polyoxyethylene ether (EO number is 5), perfluoroalkyl (C6-10) ethyl methacrylate 70 grams, 5 grams of methoxypolyethylene glycol (polyethylene glycol molecular weight is 350) methacrylate, 20 grams of octadecyl acrylate, 5 grams of dimethyl hydrogen-containing silicone oil, 20 grams of propylene glycol, mix well After that, place it at 30-40°C for homogeneous emulsification for 15 minutes, transfer it to a 1L four-necked bottle equipped with a condenser, nitrogen tube, stirrer, and thermometer, turn on the nitrogen gas and heat it to 60°C in a water bath, add trigger Agent azobisisobutylimidazole hydrochloride (V-50) 2 grams, reacted for 8 hours, cooled to room temperature and filtered to obtain a polymer emulsion.

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Abstract

The invention discloses a preparation method for a waterproof and oilproof fluorosilicone acrylate finishing agent. The preparation method comprises the following steps of: uniformly mixing 400 parts by weight of deionized water, 3-6 parts by weight of cationic surfactant, 1-4 parts by weight of nonionic surfactant, 50-70 parts by weight of perfluoroalkylethyl methacrylate, 5-10 parts by weight of acrylate polyethylene glycol (mono)ester, 20-30 parts by weight of alkyl acrylate, 5-10 parts by weight of modified dimethyl silicon oil, and 20 parts by weight of alcohol or ether cosolvents; emulsifying; heating to 60 DEG C under the protection of nitrogen, adding 1-2 parts by weight of free radical initiator, and stirring; and cooling to a room temperature. The waterproof and oilproof fluorosilicone acrylate finishing agent disclosed by the invention contains perfluoroalkylethyl (meth)acrylate, (meth)acrylate polyethylene glycol (mono)ester, alkyl (meth)acrylate, modified dimethyl silicon oil, and other copolymers of (meth)acrylate monomers. The synthetic product has excellent waterproof and oilproof performances, a soft and smooth handfeel, and good afterfinish durability because of containing crosslinking monomers and the cationic surfactant capable of being copolymerized.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, in particular to the technical field of fabric finishing agent synthesis, and in particular to a preparation method and application of a waterproof and oil-repellent fluorine-containing silicon acrylic finishing agent. Background technique [0002] At present, polymer aqueous dispersions containing perfluoroalkyl side chains have been widely used in the waterproof, oil-proof, and anti-fouling finishing of textile three-proof systems. , perfluorooctanoic acid and perfluorooctyl alcohol chemicals are gradually implemented and promoted, and perfluoroalkyl ethyl (meth)acrylate polymers are rapidly developing as textile waterproof and oil-repellent finishing agents, and products with various properties are available. Constantly being studied in depth, technological innovations continue to emerge. [0003] Due to the easy crystallization of perfluoroalkyl raw materials, it will inevitably l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F291/06C08F290/06C08F283/12C08F220/24C08F220/18C08F2/28C08F2/30D06M15/21D06M13/46D06M15/53
Inventor 刘琦王岳川刘钢
Owner 成都德美精英化工有限公司
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