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Fluoride-free waterproof agent, preparation method and textile

A fluorine-free water repellent and fluorine-free technology, applied in the field of textile auxiliaries, can solve the problems of water repellent and washing resistance limitations of water repellents, and achieve high melting point, good water resistance and washing resistance

Inactive Publication Date: 2014-02-12
DYMATIC CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses paraffin wax with a melting point lower than 80 degrees as the key component, which limits the water resistance and washing resistance of the waterproofing agent

Method used

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  • Fluoride-free waterproof agent, preparation method and textile

Examples

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Comparison scheme
Effect test

Embodiment 1

[0036] Take 4 grams behenyl acrylate, 4 grams behenyl methacrylate, 1 gram styrene, 5 grams dipropylene glycol, 10 grams Ethoqual C / 25 (ethoxylated quaternary ammonium salt), 10 grams polyethylene wax , 10 grams of oxidized polyethylene wax, 0.1 gram of acetic acid, heated to 130 degrees to melt and stir evenly, added 64 grams of water to emulsify for 1 hour to obtain a pre-emulsion. Adjust the temperature of the pre-emulsion to 62°C, add 0.5 g of glycidyl acrylate, and stir with nitrogen gas for 30 minutes. Add 0.1 gram of azobisisobutylamidine hydrochloride and 0.5 gram of vinyl chloride, and keep the reaction for 8 hours. Finally, lower the temperature of the system to room temperature, and filter through a 300-mesh filter cloth to obtain a fluorine-free waterproofing agent.

Embodiment 2

[0038] Take 10 grams of Ethoqual C / 25 (ethoxylated quaternary ammonium salt), 10 grams of polyethylene wax, and 10 grams of oxidized polyethylene wax, melt at 130 degrees and stir evenly, add 64 grams of water to emulsify for 1 hour. Add 4 grams of behenyl acrylate, 4 grams of behenyl methacrylate, 1 gram of styrene, 5 grams of dipropylene glycol, and 0.1 gram of acetic acid, and emulsify at high speed for 30 minutes to obtain a pre-emulsion. Adjust the temperature of the pre-emulsion to 62 degrees, add 0.5 g of glycidyl acrylate, and feed nitrogen for 30 minutes at the same time. Add 0.1 gram of azobisisobutylamidine hydrochloride and 0.5 gram of vinyl chloride, and keep the reaction for 8 hours. Finally, lower the temperature of the system to room temperature, and filter through a 300-mesh filter cloth to obtain a fluorine-free waterproofing agent.

Embodiment 3

[0040] Take 4 grams of behenyl acrylate, 4 grams of behenyl methacrylate, 1 gram of styrene, 5 grams of dipropylene glycol, 10 grams of Ethoqual C / 25 (ethoxylated quaternary ammonium salt), melt at 85 degrees and Stir well, add 64 grams of water to emulsify for 1 hour. Then put the emulsion into a 130-degree wax liquid, the wax liquid is composed of 10 grams of polyethylene wax and 10 grams of oxidized polyethylene wax, emulsified at a high speed for 30 minutes to obtain a pre-emulsion. Adjust the temperature of the pre-emulsion to 62°C, add 0.5 g of glycidyl acrylate and 0.1 g of acetic acid, and feed nitrogen gas for 30 minutes at the same time. Add 0.1 gram of azobisisobutylamidine hydrochloride and 0.5 gram of vinyl chloride, and keep the reaction for 8 hours. Finally, lower the temperature of the system to room temperature, and filter through a 300-mesh filter cloth to obtain a fluorine-free waterproofing agent.

[0041] other embodiments

[0042] Each component in oth...

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Abstract

The invention discloses a fluoride-free waterproof agent. The fluoride-free waterproof agent comprises the following components according to mass percent: 10%-20% of fluoride-free hydrophobic polymer, 10%-20% of (modified) polyethylene wax, 1%-10% of surfactants, 0.001%-10% of auxiliaries and the balance being water, wherein the fluoride-free hydrophobic polymer is formed through free radical polymerization of fluoride-free hydrophobic monomers with hydrocarbon hydrophobic groups and double bonds and functional monomers; the functional monomers are selected from one or more of monomers with a functional group besides double bonds; the (modified) polyethylene wax is selected from polyethylene wax and oxidized polyethylene wax with the softening point of above 100 DEG C; free radicals are generated by thermal decomposition of initiators. The fluoride-free waterproof agent provided by the invention has a good waterproof effect, does not contain fluorine and has an environment-friendly effect. Compared with the prior art, adopting the (modified) polyethylene wax with a high melting point, the fluoride-free waterproof agent has a better waterproof effect.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to a fluorine-free waterproofing agent for textiles, a preparation method and application thereof. Background technique [0002] The waterproof performance of textiles is usually obtained by finishing with waterproofing agents. At present, the waterproofing agent with the largest market share is the fluorine-containing waterproofing agent. Fluorine-containing water repellents are expensive, and the production of fluorine-containing raw materials uses high energy consumption and heavy pollution. The fluorine-containing substances are difficult to degrade and have bioaccumulation toxicity. The use of fluorine-free waterproofing agent is a development trend. [0003] Applied on March 6, 2010, the Chinese patent application with application number 201080009570.7 discloses a waterproofing agent comprising polymer, paraffin and dispersant. This patent uses paraffin wax with a melting...

Claims

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Application Information

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IPC IPC(8): D06M15/263D06M15/227C08F220/18
Inventor 刘军郭玉良李世琪朱泉陈祖芬
Owner DYMATIC CHEM
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