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Preparation method of hyper-branched polyether amide block silicone

A hyperbranched polyether and silicone technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of poor washability, softness and smoothness inferior to amino silicone oil, etc., to achieve increased hydrophilicity, good anti-staining, Effects that improve durability and effectiveness

Active Publication Date: 2015-05-27
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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  • Preparation method of hyper-branched polyether amide block silicone
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  • Preparation method of hyper-branched polyether amide block silicone

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A preparation method of hyperbranched polyether amino block silicone, comprising the steps of:

[0028] (1) Preparation of polyether / epoxy block silicone oil:

[0029] Add the prepared end-epoxy head-sealing agent and octamethylcyclotetrasiloxane according to a certain ratio, and add the solvent isopropanol in a three-port reaction kettle with a nitrogen filling device and a reflux condenser, and the dosage is the reactant 30% of the total amount. Stir and heat up to 50°C for dehydration under reduced pressure for 30 minutes, add a certain amount of alkali catalyst, continue to heat up to 100°C, and keep warm for 4 hours; then remove low boilers under reduced pressure to obtain polyether / epoxy block silicone oil.

[0030] The molar ratio of the epoxy-terminated polyether block siloxane to octamethylcyclotetrasiloxane is 1:15.

[0031] The alkali catalyst is tetramethylammonium hydroxide, and the catalyst consumption is 0.035%.

[0032] The epoxy-terminated capping ag...

Embodiment 2

[0037] A preparation method of hyperbranched polyether amino block silicone, comprising the steps of:

[0038] (1) Preparation of polyether / epoxy block silicone oil:

[0039] Add the prepared end-epoxy head-sealing agent and octamethylcyclotetrasiloxane according to a certain ratio, and add the solvent isopropanol in a three-port reaction kettle with a nitrogen filling device and a reflux condenser, and the dosage is the reactant 30% of the total amount. Stir and heat up to 50°C for dehydration under reduced pressure for 30 minutes, add a certain amount of alkali catalyst, continue to heat up to 110°C, and keep warm for 5 hours; then remove low boilers under reduced pressure to obtain polyether / epoxy block silicone oil.

[0040] The molar ratio of the epoxy-terminated polyether block siloxane to octamethylcyclotetrasiloxane is 1:20.

[0041] The alkali catalyst is tetramethylammonium hydroxide, and the catalyst consumption is 0.055%.

[0042]The epoxy-terminated capping age...

Embodiment 3

[0047] A preparation method of hyperbranched polyether amino block silicone, comprising the steps of:

[0048] (1) Preparation of polyether / epoxy block silicone oil:

[0049] Add the prepared end-epoxy head-sealing agent and octamethylcyclotetrasiloxane according to a certain ratio, and add the solvent isopropanol in a three-port reaction kettle with a nitrogen filling device and a reflux condenser, and the dosage is the reactant 30% of the total amount. Stir and heat up to 50°C for dehydration under reduced pressure for 30 minutes, add a certain amount of alkali catalyst, continue to heat up to 105°C, and keep warm for 4.5 hours; then remove low boilers under reduced pressure to obtain polyether / epoxy block silicone oil.

[0050] The molar ratio of the epoxy-terminated polyether block siloxane to octamethylcyclotetrasiloxane is 1:17.

[0051] The alkali catalyst is tetramethylammonium hydroxide, and the catalyst consumption is 0.045%.

[0052] The epoxy-terminated capping ...

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Abstract

The invention discloses a preparation method of hyper-branched polyether amide block silicone. The preparation method comprises the following steps: preparing polyether / epoxy block silicone oil and preparing hyper-branched polyether amide block silicone. According to the preparation method, hyper-branched polymers and linear polyether amino block silicone are combined together to develop a new silicone softening agent with a newly modified silicone chemical structure; the synthesized hyper-branched material has a reticular structure which not only strengthens cohesive force between fibers, but also strengthens cohesive force between yarns; the invention is high in molecular weight, low in viscosity, rich in hydrophilic groups and capable of endowing soft, well-rounded and washable touch on fabrics; the problem of easy demulsification of traditional amino-modified silicone oil is solved; the product has self-emulsifying performance in water and is good in emulsion stability; the hyper-branched polyether amide block silicone is reduced in yellowing performance and enhanced in hydrophilicity; fabrics made accordingly has good hydrophilicity and low yellowing performance; and the hyper-branched polyether amide block silicone combines with the fabrics in a form of chemical bonds, so that the wash resistances is enhanced and the soft effect of amino silicone oil is achieved.

Description

technical field [0001] The invention belongs to the field of organosilicon, and in particular relates to a preparation method of hyperbranched polyether amino block 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 fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00D06M15/647
Inventor 王海峰管永华丁梦阳唐菊沈世红武迪
Owner 南通曙光染织有限公司
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