Quaternized modified amino silicone oil softener and preparation and application thereof

A technology of quaternary ammonium modification and amino silicone oil, applied in textiles and papermaking, fiber processing, plant fibers, etc., can solve the problems of poor whiteness, water absorption and easy decontamination, fabric oil spots, easy demulsification, etc. Achieve the effects of good storage and transportation stability, poor emulsion stability improvement, and good antibacterial effect

Inactive Publication Date: 2013-10-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After testing the effects of various amino silicone oils on the finished fabrics, it was found that: commonly used amino silicone oils, that is, traditional diamine amino silicone oils with both primary and secondary amino groups, have good softness but whiteness, water absorption and easy decontamination. bad sex
Natural fibers after softening and finishing lose their hydrophilicity, which affects the wearing effect; and it is difficult to peel off from the fabric, which affects the over-dyeing and color repair of the fabric; in addition, it also exists under high temperature, alkali agent, high shear force and other process conditions. Easy to demulsify, causing fabrics to produce "oil spots" and sticking to rollers and cylinders
[0005] The above shortcomings seriously limit the application of amino silicone oil in high-grade fabrics. In order to maintain the excellent softness and resilience of amino silicone softeners and solve the yellowing phenomenon of fabrics, it is necessary to develop low-yellowing amino-modified silicone softeners. agent

Method used

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  • Quaternized modified amino silicone oil softener and preparation and application thereof
  • Quaternized modified amino silicone oil softener and preparation and application thereof
  • Quaternized modified amino silicone oil softener and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Add 300 g of octamethylcyclotetrasiloxane into a four-neck flask equipped with a condenser, a separatory funnel, a thermometer, and a nitrogen protection device. Use a constant pressure dropping funnel to drop 28g of coupling agent N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane into the four-necked flask, and add 0.85g of tetramethylhydrogen after 1h ammonium oxide catalyst. After stirring and raising the temperature to 110° C. for 8 hours, 0.20 g of hexamethyldisiloxane was added. After continuing the reaction for 1 hour, the temperature was raised to 140° C. to decompose the catalyst. Then, lower the temperature to 60°C and distill under reduced pressure to remove low boilers to obtain transparent and viscous amino silicone oil.

[0047] Dissolve 30 g of epichlorohydrin in 50 g of isopropanol, and drop it into a four-necked flask containing 100 g of amino silicone oil (ammonia value: 0.907 mmol / g) using a dropping funnel. Protected by nitrogen, the temperature...

Embodiment 2

[0050] Add 300 g of octamethylcyclotetrasiloxane into a four-neck flask equipped with a condenser, a separatory funnel, a thermometer, and a nitrogen protection device. Use a constant pressure dropping funnel to drop 25g of coupling agent N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane into the four-necked flask, and add 0.85g of tetramethylhydrogen after 1h ammonium oxide catalyst. After stirring and raising the temperature to 110°C for 10 hours, 0.20 g of hexamethyldisiloxane was added. After continuing the reaction for 1 hour, the temperature was raised to 140° C. to decompose the catalyst. Then, lower the temperature to 70°C and distill under reduced pressure to remove low boilers to obtain transparent and viscous amino silicone oil.

[0051] Dissolve 20 g of epichlorohydrin in 50 g of isopropanol, and drop it into a four-necked flask filled with 100 g of amino silicone oil (ammonia value: 0.907 mmol / g) using a dropping funnel. Protected by nitrogen, the temperature...

Embodiment 3

[0054] Weigh 30g of quaternized modified amino silicone oil, add quaternized modified amino silicone oil and 10g of deionized water into the container, stir and mix evenly, add dropwise a mixture of 2g of glacial acetic acid and 58g of deionized water, stir at high speed for 20-30min , to obtain a milky white appearance and a modified amino silicone oil emulsion with a solid content of 30%.

[0055] For the application of quaternized modified amino silicone oil softener, the padding process example: the amount of quaternized modified amino silicone oil softener emulsion (30% solid content) is 20g / L; the process flow is: one dipping and one rolling (Residue rate 80%)——drying (100°C, 90s)——baking (150°C, 60s).

[0056] After sorting, the determination of hydrophilicity shall refer to the AATCC Test Method 79-2000 standard, the whiteness test shall refer to GB / T8424.2-2001 the instrumental evaluation method for relative whiteness of textile color fastness test, and the breaking s...

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Abstract

The invention relates to a quaternized modified amino silicone oil softener and preparation and application thereof. The softener comprises the following general formula in the specification. The preparation comprises the following steps of: (1) adding octamethylcy-clotetrasiloxane into a container, adding a coupling agent N-beta-(aminoethyl)-gamma-aminopropyl methyl dimethoxysilane into the container dropwise, adding a tetramethyl ammonium hydroxide catalyst and subsequently a capping agent hexamethyl disiloxane into the container, and then performing reduced pressure distillation to obtain amino silicon oil; (2) dissolving the amino silicon oil into a solvent, adding the mixture into epichlorohydrin, stirring and heating to react under the protection of nitrogen, and removing the solvent by steaming to obtain an intermediate product; and (3) uniformly mixing N,N-dimethyl-decanamide and the solvent to obtain a mixture, stirring with heating, adding the intermediate product dropwise into the mixture under the protection of nitrogen, performing a thermostatic reaction, and removing the solvent by steaming to obtain the product. The softener of the invention has high hydrophilicity and high stability; fabric processed by the softener has excellent soft handfeel, high hydrophilicity, low yellowing, antibacterial property and the like; and the softener is simple to prepare and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of amino silicone oil softener, its preparation and application, in particular to a quaternized modified amino silicone oil softener, its preparation and application. Background technique [0002] Softener is an essential finishing auxiliary in the textile printing and dyeing industry. After the fabric is pre-treated and a series of dyeing and finishing processes, its original soft feel will often be reduced. For example, after the cotton fabric is scoured, bleached and mercerized, the hand feel will be rougher than before treatment due to the removal of natural oil and wax. Cotton and viscose fiber treated with resin, thermal setting of synthetic fiber, steam expansion of acrylic fiber, paint printing and dyeing, and shrink-proof process of wool will all produce rough hand feeling, and the application of softener treatment can restore soft hand feel. [0003] Organopolysiloxanes are widely used as softeners in vario...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/388C08G77/26D06M15/643D06M101/06
Inventor 赵涛狄超
Owner DONGHUA UNIV
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