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A kind of preparation method of side chain modified block silicone oil

A block silicone oil, modification technology, applied in the direction of improved hand feeling fiber, textiles and papermaking, fiber treatment, etc., can solve the problem of poor stability, linear ternary copolymerization block silicone oil can not achieve the soft effect of amino silicone oil, affect the silicone chain To solve problems such as segment smoothing effect, achieve good stability, solve poor hand feeling, and solve the effect of demulsification of amino silicon, which is easy to float and oil

Active Publication Date: 2020-07-17
HANGZHOU MEIGAO HUAYI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For example, Chinese patent CN103214676A discloses a method for preparing linear ternary copolymerized block silicone oil, which is formed by block polymerization of silicone segment and polyether segment, although the polyether segment on the main chain will improve the hydrophilicity of silicone oil , but the polyether on the main chain will still affect the smoothing effect of the silicone segment, resulting in the linear ternary copolymerization block silicone oil not being able to achieve the softness of amino silicone oil
[0005] Another example is the Chinese patent CN104650363A which discloses a preparation method of a hyperbranched ternary copolymerized silicone oil, using terminal epoxy silicone oil and diethylenetriamine to synthesize a hyperbranched product with a network structure, and the smoothness is improved, but the hyperbranched structure is relatively Compared with the traditional block silicone oil emulsion, the stability is poor, and the stability is poor when there are electrolytes or alkaline conditions in the working fluid

Method used

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  • A kind of preparation method of side chain modified block silicone oil
  • A kind of preparation method of side chain modified block silicone oil
  • A kind of preparation method of side chain modified block silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Mix 100kg of single-end hydrogen-containing silicone oil and 19kg of allyl polyoxyalkylene epoxy ether in 51kg of isopropanol solution evenly, add 0.4kg of chloroplatinic acid catalyst at 75°C, control the reaction temperature at 75°C, and react 4h, slough isopropanol to obtain single-end epoxy silicone oil;

[0032] Under the protection of nitrogen, raise the temperature of the mixture of 31kg isopropanol and 5kg diethylenetriamine to 80°C, slowly add 115kg single-end epoxy silicone oil dropwise, control the dropping time at 1h, continue to react for 2h after the dropping is completed, and remove the isopropyl alcohol. propanol, intermediate I is obtained;

[0033] Add 100kg of double-ended epoxy silicone oil into 84kg of isopropanol, then add 13kg of intermediate I, heat to 85°C, react for 8 hours, remove isopropanol, and obtain side chain modified block silicone oil;

[0034] from figure 1 It can be seen that the stretching vibration peak of the Si-O bond is at the...

Embodiment 2

[0047] Mix 100kg of single-end hydrogen-containing silicone oil and 18kg of allyl polyoxyalkylene epoxy ether in 50kg of isopropanol solution evenly, add 0.38kg of chloroplatinic acid catalyst at 70°C, control the reaction temperature at 75°C, and react 3h, slough isopropanol to obtain single-end epoxy silicone oil;

[0048] Under the protection of nitrogen, raise the temperature of the mixture of 30kg isopropanol and 5kg diethylenetriamine to 80°C, slowly add 114kg single-end epoxy silicone oil dropwise, control the dropping time at 0.75h, continue to react for 2h after the dropping is completed, and remove Virahol, obtain intermediate I;

[0049] Add 100kg of double-ended epoxy silicone oil to 82kg of isopropanol, then add 12kg of intermediate I, heat to 80°C, react for 8 hours, remove isopropanol, and obtain side chain modified block silicone oil.

[0050] from figure 2 It can be seen that, at the wave number of 1015.41cm -1 The stretching vibration peak of the Si-O bon...

Embodiment 3

[0063] Mix 100kg of single-end hydrogen-containing silicone oil and 17kg of allyl polyoxyalkylene epoxy ether in 50kg of isopropanol solution evenly, add 0.35kg of chloroplatinic acid catalyst at 70°C, control the reaction temperature at 70°C, and react 3h, slough isopropanol to obtain single-end epoxy silicone oil;

[0064] Under the protection of nitrogen, raise the temperature of the mixture of 29kg isopropanol and 5kg diethylenetriamine to 75°C, slowly add 113kg single-end epoxy silicone oil dropwise, control the dropping time at 0.5h, continue to react for 1h after the dropping is completed, and remove Virahol, obtain intermediate I;

[0065] Add 100kg of double-ended epoxy silicone oil to 82kg of isopropanol, then add 12kg of intermediate I, heat to 80°C, react for 7 hours, remove isopropanol, and obtain side chain modified block silicone oil;

[0066] from image 3 It can be seen from the figure that the wavenumber is 1007.21cm -1 The stretching vibration peak of the...

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Abstract

The invention discloses a preparation method for side chain modified block silicone oil. The preparation method comprises the following steps: preparing single-end epoxy silicone oil through a hydrosilylation addition reaction of single-end hydrogen-containing silicone oil and allyl polyoxy alkyl epoxy ether under the action of a catalyst; preparing an intermediate I through a reaction of the single-ended epoxy silicone oil and diethylene triamine; and preparing the side chain modified block silicone oil through a reaction of double-end epoxy silicone oil and the intermediate I. According to the side chain modified block silicone oil prepared by the invention, polysiloxane side chains are introduced into polyether chain segments, so that after finishing is carried out by using side chain modified block silicone oil, cotton, chemical fibers and a blended fabric of the cotton and the chemical fibers have excellent, soft, smooth and fluffy handfeel, and the stability of a silicone oil emulsion is good.

Description

technical field [0001] The invention relates to a side chain modified block silicone oil, in particular to a preparation method of a side chain modified block silicone oil. Background technique [0002] Silicone softener is a kind of hand finishing auxiliary widely used in the textile industry, among which amino silicone oil has good softness and smoothness. However, after the fabric is treated with amino silicone oil, the yellowing becomes larger, the hydrophilicity becomes worse, and the stability of the amino silicone oil emulsion is poor. Aiming at the shortcomings of amino silicone oil, those skilled in the art have developed side chain modified amino silicone oil. The more common method is to introduce polyether into the side chain to achieve hydrophilicity and reduce yellowing. But the introduction of side chain polyether will reduce the smooth feel of primary amino silicone oil. [0003] Those skilled in the art have also developed ternary copolymerization block si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00D06M15/647
CPCC08G81/00D06M15/647D06M2200/50
Inventor 何齐海王博
Owner HANGZHOU MEIGAO HUAYI CHEM
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