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Amino-modified polysiloxane softener and preparation method thereof

A polysiloxane and amino modification technology, applied in the direction of improved hand fibers, textiles and papermaking, fiber treatment, etc., can solve the problems of poor fabric softness, softness decline, poor yellowing resistance, etc., to achieve Improve decontamination performance, prevent demulsification, and stabilize performance

Inactive Publication Date: 2020-09-18
绍兴集宇化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After finishing the fabric with the existing polysiloxane softener, the softness of the fabric is not good, the anti-yellowing performance is poor, and the softness of the fabric will decrease to a certain extent after several times of washing

Method used

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  • Amino-modified polysiloxane softener and preparation method thereof
  • Amino-modified polysiloxane softener and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0027] Preferably, the preparation method of the amino-modified polysiloxane comprises the following steps:

[0028] (1) Infuse nitrogen into the four-necked flask, add γ-chloropropylmethyldimethoxysilane, heat γ-chloropropylmethyldimethoxysilane to 70-80°C, and carry out while heating Stir, then add diethanolamine into the four-necked flask, and react at 70-80°C for 3-5h;

[0029] (2) After step (1), lower the temperature of the compound obtained in (1) to 40-50°C, then add distilled water and hydrolyze for 6-8h, the γ-chloropropylmethyldimethoxysilane , diethanolamine, distilled water mass ratio is 1:2-3:1-3;

[0030] (3) Carrying out the mixture obtained in (2) to remove excess water by vacuum distillation to obtain the liquid mixture;

[0031] (4) Pass nitrogen into the three-necked flask, then add the liquid mixture in (3) into the three-necked flask and start to heat up and stir. After the temperature rises to 60-70°C, add hexamethylcyclotrisiloxane, four Methyl ammon...

Embodiment 1

[0048] An amino-modified polysiloxane softener, in parts by weight, its raw materials include 30 parts of polysiloxane, 10 parts of nonionic surfactant, 5 parts of stabilizer, 5 parts of emulsifier, and 50 parts of water , the emulsifier is a polyether emulsifier, the polyether emulsifier is polyoxyethylene lauryl ether, the CAS number is: 9002-92-0, purchased from Jiangsu Haian Petrochemical Factory. Described polysiloxane is amino-modified polysiloxane, and the preparation method of described amino-modified polysiloxane comprises the following steps:

[0049] (1) Introduce nitrogen into the four-necked flask, add γ-chloropropylmethyldimethoxysilane, heat the γ-chloropropylmethyldimethoxysilane to 70°C, and stir while heating, Then add diethanolamine into the four-necked flask, and react at 70°C for 3 hours. The CAS number of γ-chloropropylmethyldimethoxysilane is: 18171-19-2, purchased from Shanghai Yishi Chemical Co., Ltd. , the CAS number of diethanolamine is: 111-42-2, p...

Embodiment 2

[0060] The difference with Example 1 is: amino-modified polysiloxane softener, by weight, its raw materials include polysiloxane 40 parts, nonionic surfactant 20 parts, stabilizer 6 parts, emulsifying 7 parts of agent, 60 parts of water, and described emulsifier is polyether type emulsifier. Described polysiloxane is amino-modified polysiloxane, and the preparation method of described amino-modified polysiloxane comprises the following steps:

[0061] (1) Infuse nitrogen into the four-necked flask, add γ-chloropropylmethyldimethoxysilane, heat γ-chloropropylmethyldimethoxysilane to 75°C, and stir while heating, Add diethanolamine to the four-necked flask and react at 75°C for 4 hours;

[0062] (2) After step (1) is finished, the temperature of the compound obtained in (1) is lowered to 45° C., and then distilled water is added for hydrolysis for 7 hours. The γ-chloropropylmethyldimethoxysilane, diethanolamine, The mass ratio of distilled water is 1:3:3;

[0063] (3) Carryin...

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Abstract

The invention discloses an amino-modified polysiloxane softener and a preparation method thereof. The raw material of the softener comprises the following components, in parts by weight, of 30-50 parts of polysiloxane, 10-25 parts of a nonionic surfactant, 5-8 parts of a stabilizer, 5-10 parts of an emulsifier, and 50-70 parts of water, wherein the emulsifier is a polyether emulsifier, and the polysiloxane is amino-modified polysiloxane. According to the softener and the method, the amino-modified polysiloxane can improve the anti-yellowing performance of the softener, gamma-chloropropylmethyldimethoxysilane is modified with diethanol amine, secondary amino and hydroxyl are introduced into silane, the hydrophilicity and anti-yellowing performance of the silane are improved, a finished fabric absorbs sweat and is breathable, the comfort performance of the fabric is improved, and the polyether emulsifier is used for emulsifying the amino-modified polysiloxane, so that the hydrophilic performance and the decontamination performance of the softener can be improved.

Description

technical field [0001] The application belongs to the technical field of textile auxiliaries, in particular to a polysiloxane softener and its preparation method Background technique [0002] Textile auxiliaries are an important class of chemical substances that need to be added in the textile fiber process, and the performance of fabrics can be improved by adding textile auxiliaries. During the processing of textiles, the handle will become rough after repeated treatments, and the synthetic fiber fabrics are generally worse, especially the microfiber fabrics. In order to make the fabric have a soft, smooth and comfortable feel, it needs to be finished. At present, it is widely used to finish with a softener. In addition, a large amount of softeners are used in the process of chemical fiber spinning, spinning and weaving of various fibers. The friction between them increases, which is prone to scratches, streaks and other phenomena. The use of softener can make the fiber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643D06M15/53D06M13/224D06M13/51D06M13/292D06M13/152C08G77/26C08G77/06D06M101/06
CPCC08G77/06C08G77/26D06M13/152D06M13/2243D06M13/292D06M13/51D06M15/53D06M15/6436D06M2101/06D06M2200/50
Inventor 吴卫勇
Owner 绍兴集宇化工科技有限公司
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