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Quaternary ammonium salt modified diamine-terminated polydimethylsiloxane emulsion and preparation method and application thereof

A technology of aminopolydimethylsiloxane and dimethylsiloxane, which is applied in the field of quaternary ammonium salt modified double-ended aminopolydimethylsiloxane emulsion and its preparation, and can solve the problem of difficult elution, Blockage of hair follicles, rigid hair and other problems, to achieve the effect of simple and easy preparation method, improved product performance, and strong anti-yellowing ability

Inactive Publication Date: 2017-09-08
SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the aminopolydimethylsiloxanes, the performance of aminopolydimethylsiloxane in hair care is particularly outstanding. However, aminopolydimethylsiloxane can be firmly adsorbed on the hair surface and is not easy to wash off. Long-term use will cause excessive accumulation, which will cause polysiloxane to accumulate on the hair and hair follicles, stiffen the hair, block the hair follicles, and damage the hair
Moreover, the hydrogen on the amino group in the amino-terminated polydimethylsiloxane is very active, and it is easy to cause the product to turn yellow when used in the formula

Method used

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  • Quaternary ammonium salt modified diamine-terminated polydimethylsiloxane emulsion and preparation method and application thereof

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Effect test

Embodiment 1

[0038] The preparation method of quaternary ammonium salt modified double-end amino polydimethylsiloxane emulsion comprises the following steps:

[0039] (1) Preparation of quaternary ammonium salt modified double-ended aminopolydimethylsiloxane:

[0040] 1.0g 2,3-epoxypropyltrimethylammonium chloride, 100.0g double-ended aminopropyl polydimethylsiloxane (6000cst / 25°C), 30.0g fatty alcohol polyoxyethylene ether O-8 . 5.0 g of deionized water was put into the reactor, stirred and dispersed evenly, and reacted for 10 hours at 60° C. to obtain a mixture of quaternary ammonium salt modified double-ended amino polydimethylsiloxane and emulsifier;

[0041](2) Emulsion preparation: the mixture of the quaternary ammonium salt modified double-ended amino polydimethylsiloxane obtained in step (1) and the emulsifier is transferred to an emulsifier, placed in a water bath at 60°C, and slowly dripped Add 300.0g deionized water and emulsify the material, add 0.3g citric acid and 0.3g 1,3-d...

Embodiment 2

[0044] The preparation method of quaternary ammonium salt modified double-end amino polydimethylsiloxane emulsion comprises the following steps:

[0045] (1) Preparation of quaternary ammonium salt modified double-ended aminopolydimethylsiloxane:

[0046] 1.1g 2,3-epoxypropyldimethylpropylammonium chloride, 100.0g double-ended aminopropyl polydimethylsiloxane (55000cst / 25℃), 30.0g nonylphenol polyoxyethylene ether TX-7, put 5.0g deionized water into the reactor, stir and disperse evenly, and react at 50°C for 10 hours to obtain a mixture of quaternary ammonium salt modified double-ended amino polydimethylsiloxane and emulsifier;

[0047] (2) Emulsion preparation: the mixture of the quaternary ammonium salt modified double-ended amino polydimethylsiloxane obtained in step (1) and the emulsifier is transferred to an emulsifier, placed in a water bath at 60°C, and slowly dripped Add 400.0g deionized water and emulsify the material, add 0.3g citric acid and 0.3g DMDMH after the e...

Embodiment 3

[0050] The preparation method of quaternary ammonium salt modified double-end amino polydimethylsiloxane emulsion comprises the following steps:

[0051] (1) Preparation of quaternary ammonium salt modified double-ended aminopolydimethylsiloxane:

[0052] 1.0g 2,3-epoxypropyltrimethylammonium bromide, 100.0g double-ended aminopropyl polydimethylsiloxane (5000cst / 25℃), 30.0g isomeric alcohol polyoxyethylene ether TO- 7. Put 5.0 g of deionized water into the reactor, stir and disperse evenly, and react at 50°C for 10 hours to obtain a mixture of quaternary ammonium salt modified double-ended amino polydimethylsiloxane and emulsifier;

[0053] (2) Emulsion preparation: the mixture of the quaternary ammonium salt modified double-ended amino polydimethylsiloxane obtained in step (1) and the emulsifier is transferred to an emulsifier, placed in a water bath at 60°C, and slowly dripped Add 320.0g deionized water and emulsify the material, add 0.3g citric acid and 0.3g DMDMH after th...

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Abstract

The invention belongs to the technical field of organosilicone and discloses a quaternary ammonium salt modified diamine-terminated polydimethylsiloxane emulsion and a preparation method and an application thereof. The emulsion provided by the invention comprises the following components which are obtained by performing a reaction in water in parts by mass: 100 parts of diamine-terminated polydimethylsiloxane, 0.5-100 parts of quaternary ammonium salt with epoxy groups and 10-300 parts of a nonionic emulsifier. The quaternary ammonium salt modified diamine-terminated polydimethylsiloxane emulsion provided by the invention is prepared in an emulsifying system, so that the problem that the reaction rate is low as materials are not dissolved by one another is solved, and no organic solvents are needed, and the emulsion is high in flexibility and high in practicality; a quaternary ammonium salt functional group is introduced into the molecular framework thereof, so that the product performance of diamine-terminated polydimethylsiloxane is further improved, the stability is good and the anti-yellowing ability is strong. The quaternary ammonium salt modified diamine-terminated polydimethylsiloxane emulsion provided by the invention is simple and feasible in production process, short in production period, free of strict requirements on production equipment, and easily available in raw material, can easily realize industrial production, and provides a conditioning aid which is unique in performance for daily use chemicals and textile industries.

Description

technical field [0001] The invention belongs to the technical field of organosilicon, and in particular relates to a quaternary ammonium salt-modified double-end amino polydimethylsiloxane emulsion and a preparation method and application thereof. Background technique [0002] Polysiloxane has been widely used in the field of daily chemical products. Most shampoos and conditioners on the market today contain aminopolydimethylsiloxane, including daily chemical star brands: Rejoice, Pantene, L'Oreal and Dove. As a conditioner, aminopolydimethylsiloxane is used in shampoos and hair care products, which can give various hair types a unique soft, fluffy and silky feel; give products a smooth and volumizing effect; and help fix color , It is also suitable for dyed and permed hair care products; it can deeply repair damaged hair, and has excellent conditioning and deposition effects. Among the aminopolydimethylsiloxanes, the performance of aminopolydimethylsiloxane in hair care is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/388C08L83/08C08L71/02C08K5/3445C08K5/092C08J3/03
CPCC08G77/388C08J3/03C08J2383/08C08L83/08C08L71/02C08K5/3445C08K5/092
Inventor 彭华勇程建华张继勇何衍健陈柔羲郑华生谢培镇张鹏
Owner SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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