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A kind of preparation method of hyperbranched ternary copolymerization organosilicon

A hyperbranched ternary and silicone technology, applied in the field of silicone, can solve the problems of poor washability, softness and smoothness inferior to amino silicone oil, etc., and achieve the effects of increasing hydrophilicity, good anti-contamination, and simplifying the emulsification process

Active Publication Date: 2017-04-12
南通曙光染织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a linear ternary copolymerized silicone, a polyether segment with a large molecular weight is introduced into the main chain of the macromolecule, and the methyl smooth layer on the main chain of the silicone is cut off, and the molecular weight is not as large as that of amino silicone oil, so it is soft and smooth It is not as good as amino silicone oil; in addition, the amino block is in the main chain, affected by steric hindrance and polarity, the adsorption on the surface of the fiber is not as good as amino silicone oil, so its washing resistance is relatively poor
[0004] In summary, there is currently no method for preparing a silicone softener that has the hydrophilicity, emulsion stability, and softness and slipperiness of amino silicone oil.

Method used

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  • A kind of preparation method of hyperbranched ternary copolymerization organosilicon
  • A kind of preparation method of hyperbranched ternary copolymerization organosilicon
  • A kind of preparation method of hyperbranched ternary copolymerization organosilicon

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specific Embodiment 1

[0039] A preparation method of hyperbranched ternary copolymerization organosilicon, comprising the steps of:

[0040] (1) Preparation of allyl polyoxyethylene glycidyl ether:

[0041] Mix allyl polyoxyethylene ether and epichlorohydrin evenly, use sodium hydride as a catalyst, react at 55°C for 1.5h, and then remove excess epichlorohydrin under reduced pressure; then add a certain amount of amount of sodium hydroxide aqueous solution, and control the reaction temperature at 30°C for 1.5 hours; after the reaction, undergo post-processing such as vacuum distillation and filtration to remove impurities to obtain end-capped polyether products. The degree of polymerization of the allyl polyoxyethylene ether is 19. The molar ratio of allyl polyoxyethylene ether, epichlorohydrin and sodium hydroxide is 1:1.4:1.3.

[0042] (2) Preparation of epoxy-terminated polyether block siloxane:

[0043] Mix tetramethyldihydrodisiloxane and allyl polyoxyethylene glycidyl ether in a ratio of 1...

specific Embodiment 2

[0049] A preparation method of hyperbranched ternary copolymerization organosilicon, comprising the steps of:

[0050] (1) Preparation of allyl polyoxyethylene glycidyl ether:

[0051] Mix allyl polyoxyethylene ether and epichlorohydrin evenly, use sodium hydride as a catalyst, react at 65°C for 2.5 hours, and then remove excess epichlorohydrin under reduced pressure; then add a certain amount of Amount of sodium hydroxide aqueous solution, control the reaction temperature and react at 40°C for 3 hours; after the reaction, undergo post-processing such as vacuum distillation and filtration to remove impurities to obtain end-capped polyether products. The degree of polymerization of the allyl polyoxyethylene ether is 25. The molar ratio of allyl polyoxyethylene ether, epichlorohydrin and sodium hydroxide is 1:1.4:1.3.

[0052] (2) Preparation of epoxy-terminated polyether block siloxane:

[0053] Mix tetramethyldihydrodisiloxane and allyl polyoxyethylene glycidyl ether in a r...

specific Embodiment 3

[0059] A preparation method of hyperbranched ternary copolymerization organosilicon, comprising the steps of:

[0060] (1) Preparation of allyl polyoxyethylene glycidyl ether:

[0061] Mix allyl polyoxyethylene ether and epichlorohydrin evenly, use sodium hydride as a catalyst, react at 60°C for 2 hours, and then remove excess epichlorohydrin under reduced pressure; then add a certain amount of Sodium hydroxide aqueous solution, the reaction temperature is controlled at 35 °C for 2 hours; after the reaction is completed, the end-capped polyether product is obtained by post-processing such as vacuum distillation and filtration to remove impurities. The degree of polymerization of the allyl polyoxyethylene ether is 23. The molar ratio of allyl polyoxyethylene ether, epichlorohydrin and sodium hydroxide is 1:1.4:1.3.

[0062] (2) Preparation of epoxy-terminated polyether block siloxane:

[0063] Mix tetramethyldihydrodisiloxane and allyl polyoxyethylene glycidyl ether in a rat...

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Abstract

The invention discloses a preparation method of hyperbranched ternary polymerization organic silicon. The preparation method comprises the following steps: preparing allyl polyoxyethylene glycidyl ether; preparing epoxy-terminated polyether block siloxane; preparing polyether / epoxy block silicone oil; preparing hyperbranched ternary polymerization organic silicon. According to the preparation method, a hyperbranched polymer and linear polyether amino block organic silicon are bonded together to research a novel organic silicon softener with a novel modified organic silicon chemical structure, and a synthesized hyperbranched matter is capable of enhancing the cohesive force among fibers and endowing a fabric with soft, plump and washable hand feel, high in molecular mass and low in viscosity and has much hydrophilic groups; the problem that emulsion of traditional amino modified silicon oil is easily broken is solved, the product has self-emulsifying property in water and is good in emulsion stability; the yellowing property is reduced, and the hydrophily is enhanced; a processed fabric is good in hydrophily and low in yellowing property and is bonded with fabric by virtue of chemical bonds, so that the washability is improved, and the fabric has a flexible effect of amino silicon oil.

Description

technical field [0001] The invention belongs to the field of organosilicon, and in particular relates to a preparation method of hyperbranched ternary copolymerization organosilicon. Background technique [0002] At present, amino silicone oil has become a widely used finishing agent in the printing and dyeing industry due to its excellent softness and smoothness. The fabrics treated with it are soft, smooth, washable and comfortable to wear. However, the arrangement of amino silicone oil in the fiber makes the hydrophilicity of the fiber worse, and the hygroscopicity and wearing comfort of the fabric are reduced; the white or light-colored fabrics finished with it will appear yellowing and discoloration to varying degrees after high temperature baking. Color difference; and its emulsion has poor stability, and the phenomenon of "floating oil demulsification" is prone to occur during storage and transportation. [0003] At present, the latest development of textile silicone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00D06M15/647
Inventor 管永华王海峰沈世红丁梦阳武迪
Owner 南通曙光染织有限公司
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