A kind of preparation method of cotton fabric fluorosilicone waterproof finishing agent

A technology for water-repellent finishing, cotton fabrics, used in plant fibers, fiber processing, textiles, and papermaking

Active Publication Date: 2022-06-21
义乌市渊泰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] With the continuous improvement of people's living standards, skin-friendly and anti-allergic cotton fabrics are more and more loved by people. The fabric waterproof finishing agents prepared by the above inventions and existing patents are not specifically aimed at cotton fabric products. At present Research in this direction is also a blank in the market

Method used

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  • A kind of preparation method of cotton fabric fluorosilicone waterproof finishing agent
  • A kind of preparation method of cotton fabric fluorosilicone waterproof finishing agent
  • A kind of preparation method of cotton fabric fluorosilicone waterproof finishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of a fluorosilicone waterproof finishing agent for cotton fabrics, the main scheme of which is as follows:

[0024] Add 0.5g of surfactant and 180g of deionized water into the reaction kettle, mix evenly, add 1g of alkali solution with a mass percentage concentration of 5%, continue to stir for 10min, heat up to 60°C, and then add 5g of Methylcyclotetrasiloxane, 2g of hexamethyldisiloxane and 3g of hexadecyltrimethoxysilane are mixed evenly and then slowly added to the reaction kettle. The addition is controlled within 60 minutes, and the temperature is kept after the addition is completed. After reacting for 5 hours, add 40 g of organic fluorosilicon ionic liquid emulsion, 0.01 g of sodium polyphosphate and 0.1 g of copper naphthenate, stir for 20 min, and then filter to obtain the silicone waterproof finishing agent for cotton fabrics.

[0025] A new type of organofluorosilicon emulsion is prepared according to the following method: 50g of polydim...

Embodiment 2

[0031] A preparation method of a fluorosilicone waterproof finishing agent for cotton fabrics, the main scheme of which is as follows:

[0032] Add 0.7g of surfactant and 190g of deionized water into the reaction kettle, mix evenly, add 4g of alkali solution with a mass percentage concentration of 7%, continue to stir for 15min, then heat up to 70°C, and then add 7g of eight Methylcyclotetrasiloxane, 5g of hexamethyldisiloxane and 4g of hexadecyltrimethoxysilane are mixed evenly and slowly added to the reaction kettle, and the addition is controlled within 70 minutes, and the temperature is kept after the addition After reacting for 8 hours, add 48g of organic fluorine silicon ionic liquid emulsion, 0.04g of sodium polyphosphate and 0.3g of copper naphthenate, stir for 25min and then filter to obtain the silicone waterproof finishing agent for cotton fabrics.

[0033] A new type of organofluorosilicon emulsion is prepared according to the following method: 70g of polydimethylm...

Embodiment 3

[0039] A preparation method of a fluorosilicone waterproof finishing agent for cotton fabrics, the main scheme of which is as follows:

[0040] Add 2.3g of surfactant and 320g of deionized water into the reaction kettle, mix evenly, add 10g of alkali solution with a mass percentage concentration of 10%, continue to stir for 30min, then heat up to 80°C, and then add 13g of octane Methylcyclotetrasiloxane, 7g of hexamethyldisiloxane and 6g of hexadecyltrimethoxysilane are mixed evenly and then slowly added to the reaction kettle, and the addition is controlled within 120min, and the temperature is kept after the addition After reacting for 12 hours, add 60 g of organic fluorosilicon ionic liquid emulsion, 0.1 g of sodium polyphosphate and 0.5 g of copper naphthenate, stir for 30 min and then filter to obtain the silicone waterproof finishing agent for cotton fabrics.

[0041] A new type of organofluorosilicon emulsion is prepared according to the following method: 80g of polydim...

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Abstract

The invention relates to the field of preparation of textile auxiliaries. The invention relates to a method for preparing a fluorosilicone waterproof finishing agent for cotton fabrics. The invention provides a waterproof finishing agent specially for cotton fabrics. The finishing agent consists of a medium-length It is composed of chain alkyl cationic polysiloxane emulsion and a new type of organic fluorosilicon emulsion. During the synthesis process, modified silicone oil with higher silicon-hydrogen bond content is added to prevent the emulsion from forming a double-layer silicone resin film on the polar surface. The problem of decreased hydrophobicity and water-washing resistance; a new type of organic fluorosilicon copolymer emulsion provided by the present invention is obtained by catalytic polymerization of short fluorocarbon chain monomers and cyclosiloxanes that are low in cost, difficult to degrade, and more environmentally friendly. The problem of high cost and heavy pollution of the fluorine-containing emulsion is solved; the surface layer of the cotton fabric finished by the finishing agent of the invention is smooth and smooth, and the hydrophobic effect is better. Combined with softness and hydrophobicity, it is a product with great potential, profound meaning and great production value.

Description

technical field [0001] The invention relates to the field of preparation of textile auxiliaries, in particular to a preparation method of a fluorosilicon waterproof finishing agent for cotton fabrics. Background technique [0002] Most of the fabric waterproofing agents developed and used by humans in the early stage were aliphatic hydrocarbons such as metal soaps, paraffins, hydroxymethyl compounds and other fluorine-free waterproofing agents, but such waterproofing agents were either poor in washing resistance and friction resistance and could not be used repeatedly, or The environmental performance is poor and does not conform to the concept of green development. [0003] CN106149382A discloses a fabric waterproof finishing agent, comprising the following raw materials in parts by weight: 13-18 parts of ethylene glycol, 20-30 parts of fluorosilicone emulsion, 3-5 parts of linseed oil, 2-5 parts of stearic acid, soap 3-5 parts of powder, 10-20 parts of vinyl tertiary carb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/643D06M15/657D06M11/72D06M13/184C08G77/398D06M101/06
CPCD06M15/643D06M15/657D06M11/72D06M13/1845C08G77/398D06M2101/06D06M2200/12D06M2200/50
Inventor 沈华汪季娟
Owner 义乌市渊泰新材料有限公司
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