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Preparation method of all-cotton fabric fluorine-silicone waterproof finishing agent

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

Active Publication Date: 2020-08-28
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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  • Preparation method of all-cotton fabric fluorine-silicone waterproof finishing agent
  • Preparation method of all-cotton fabric fluorine-silicone waterproof finishing agent
  • Preparation method of all-cotton fabric fluorine-silicone 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 auxiliary agents, in particular to a preparation method of an all-cotton fabric fluorine-silicone waterproof finishing agent. The inventionprovides the waterproof finishing agent special for an all-cotton fabric. The finishing agent is composed of a medium-long-chain alkyl cation polysiloxane emulsion and a novel organic fluorine-silicone emulsion. Modified polysiloxane with a high content of SiHx bond is added in the synthesis process, and therefore the problem that a dual-layer silicon resin film is generated on a polar surface ofan emulsion and causes the decline in hydrophobic capacity and washable property is avoided. The novel organic fluorine-silicone copolymer emulsion is prepared from low-cost, uneasily-degradable andenvironment-friendly short-fluorocarbon-chain monomers and cyclosiloxane through catalytic polymerization, and therefore the problems of high cost and severe pollution of a fluorine-containing emulsion are solved. The all-cotton fabric subjected to finishing of the finishing agent has a smooth and flat surface layer and a good hydrophobic effect. The finishing agent has excellent softness and hydrophobic property and is a product with unlimited potential, profound significance 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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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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