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Synthetic method of low-solvent block silicone oil and hand feeling finishing agent containing low-solvent block silicone oil

A technology of block silicone oil and synthesis method, which is applied in the direction of improved hand feeling fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of easy demulsification, high cost, yellowing, etc., and achieve the effect of improving flexibility and stable quality

Inactive Publication Date: 2018-07-13
ZHEJIANG QUEPING TEXTILE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, amino silicone oil cannot be used directly, it must be emulsified with an emulsifier before use
During the use of amino silicone oil, there are problems such as easy demulsification, floating oil, sticking to rollers, sticking cylinders, and easy to produce silicone oil spots. A series of problems such as the fabric cannot be repaired
[0003] In recent years, block silicone oil, which replaces amino silicone oil products, has gradually become popular in the market. However, due to the complicated synthesis process, the key raw materials rely on imports, especially in the addition process of silicon hydrogen and allyl glycidyl ether. It cannot be 100% converted, resulting in unstable quality and high cost of block silicone oil on the market; at the same time, the solvent content of block silicone oil on the market reaches 40% or more. At the same time, the safety of transportation and storage is also greatly reduced, so the study of low-solvent block silicone oil has important research significance

Method used

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  • Synthetic method of low-solvent block silicone oil and hand feeling finishing agent containing low-solvent block silicone oil
  • Synthetic method of low-solvent block silicone oil and hand feeling finishing agent containing low-solvent block silicone oil

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Effect test

Embodiment 1

[0022] A method for synthesizing low-solvent block silicone oil, comprising the following steps: step 1, adding terminal low hydrogen-containing silicone oil and allyl epoxy polyether with a molar ratio of 1:2 to the reaction kettle, wherein the terminal low hydrogen-containing silicone oil The molecular weight of allyl epoxy polyether is 4000, and the molecular weight of allyl epoxy polyether is 500-2000. Then add a certain amount of isopropanol into the reaction kettle, heat the reaction kettle to 70°C, stir evenly, then add a certain amount of chloroplatinic acid, keep it warm for 4 hours, then cool down to below 40°C and discharge to obtain the intermediate ; Step 2, put the intermediate and diethylenetriamine with a molar ratio of 1:1 into the reactor, keep the reaction at 80°C for 12 hours, cool down to below 40°C and discharge to obtain low-solvent block silicone oil. The weight ratio of isopropanol to all the materials in the reactor in step 1 is 5:100, and the weight ...

Embodiment 2

[0024] A method for synthesizing low-solvent block silicone oil, comprising the following steps: step 1, adding terminal low hydrogen-containing silicone oil and allyl epoxy polyether with a molar ratio of 1:2 to the reaction kettle, wherein the terminal low hydrogen-containing silicone oil The molecular weight of allyl epoxy polyether is 4000, and the molecular weight of allyl epoxy polyether is 500-2000. Then add a certain amount of isopropanol into the reaction kettle, heat the reaction kettle to 70°C, stir evenly, then add a certain amount of chloroplatinic acid, keep it warm for 4 hours, then cool down to below 40°C and discharge to obtain the intermediate ; Step 2, put the intermediate and diethylenetriamine with a molar ratio of 1:2 into the reactor, keep the reaction at 80°C for 4 hours, cool down to below 40°C and discharge to obtain low-solvent block silicone oil. The weight ratio of isopropanol to all the materials in the reactor in step 1 is 5:100, and the weight r...

Embodiment 3

[0026] A fabric handle finishing agent. Add AEO-3 emulsifier to the low-solvent block silicone oil, emulsify according to the ratio of oil to milk ratio 3:1, add 1% glacial acetic acid to the emulsion, form a transparent or milky white uniformly dispersed emulsion, and obtain the fabric handle finishing agent .

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Abstract

The invention discloses a synthetic method of a low-solvent block silicone oil. An intermediate is obtained through reaction of end low hydrogen containing silicone oil and allylic epoxy polyether. The low-solvent block silicone oil prepared by the preparation method is stable in quality and the fabric hand feeling finishing agent is prepared by the low-solvent block silicone oil, aiming at different fabrics and the pursuit of the styles of customers, the molecular weight can be changed and the amine in the amination process can be changed; and the end low hydrogen containing silicone oil andthe allylic epoxy polyether of the block silicon oil are low in molecular weight and the polymorphism of the amine in the amination process greatly improve the flexibility of the block silicone oil, and the effects of different styles can be finished for different fabrics or the same fabric, and a corresponding hand feeling style can be effectively sorted out according to customer requirements.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a method for synthesizing low-solvent block silicone oil and a hand finishing agent containing the low-solvent block silicone oil. Background technique [0002] At present, more than 80% of the hand finishing agents for textiles on the market need to use amino silicone oil. The molecular main chain of amino silicone oil is composed of Si-O bonds with excellent flexibility, and amino groups of different structures are introduced into the side chains according to different aminosilane coupling agents. The amino groups have strong polarity, reactivity, and adsorption. Chemical properties such as resistance, thus endowing amino silicone oil with innate advantages in the effect of fabric hand finishing. However, amino silicone oil cannot be used directly, and must be emulsified with an emulsifier before use. During the use of amino silicone oil, there are problems such as ...

Claims

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Application Information

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IPC IPC(8): C08G77/46D06M15/647
CPCC08G77/46D06M15/6436D06M15/647D06M2200/50
Inventor 许海军李晓辉
Owner ZHEJIANG QUEPING TEXTILE CHEM
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