CN114306135B

CN114306135B - A transparent thickening suspension system, preparation method and use

Info

Publication number: CN114306135B
Application number: CN202210013742.2A
Authority: CN
Inventors: 李琳; 梁广文; 麦景璋; 李泽勇; 孙吉龙; 户献雷
Original assignee: Qingyuan Tianci High Tech Material Co ltd
Current assignee: Qingyuan Tianci High Tech Material Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2025-02-21
Anticipated expiration: 2042-01-06
Also published as: CN114306135A

Abstract

The invention belongs to the field of daily chemical materials, and discloses a transparent thickening suspension system, which comprises the following components by weight: 10 to 30 parts of fatty alcohol polyoxyethylene ether sodium sulfate; 1 to 10 parts of cocamidopropyl betaine; 4 to 10 parts of acrylic emulsion Emul 400; an appropriate amount of sodium hydroxide or citric acid; and the balance of water; the pH range of the system is 5-7. The system can provide good light transmittance within the range of pH 5-7, and the invention also discloses a preparation method and use of the system.

Description

Transparent thickening suspension system, preparation method and application

Technical Field

The invention belongs to the field of daily chemical materials, and particularly relates to a transparent thickening suspension system, a preparation method and application.

Background

EMUL 400 acrylic acid (ester) copolymer is alkali-swelling anionic polyacrylic acid rheology modifier, has suspending, thickening and stabilizing effects, and is applied to personal care products based on surfactant.

The pH application range of the existing alkali-swelling anionic polyacrylic acid rheology modifier is very narrow, most of the pH application ranges are between 6 and 7, and the pH range of even only 6.5 to 7 in a specific surface active system keeps high light transmittance.

CN 201810128329.4A whitening facial cleanser and a preparation method thereof, wherein the facial cleanser comprises sodium laureth succinic monoester sulfonate, sodium cocoyl succinic monoester Huang Suaner, sodium fatty alcohol polyoxyethylene ether sulfate, cocamidopropyl betaine, sodium dodecyl alcohol ether sulfate, acrylic resin, deionized water, guar gum, polyethylene glycol distearate and polyalcohol;

CN02136821.X discloses a shampoo which consists of sodium fatty alcohol polyoxyethylene ether sulfate, cocamidopropyl betaine, coco diethanolamide, silicone oil, guar gum, polyethylene glycol 6000 distearate, sweet almond oil, ginger, black seed grass oil, peppermint oil, glycol distearate, preservative, essence and deionized water.

CN201310182792.4 discloses a hand cleanser with continuous bacteriostasis, lasting fragrance and rich natural moisturizing components and nutritional factors and a preparation method thereof, the main components of the hand cleanser are as follows: fatty alcohol polyoxyethylene ether sodium sulfate, cocamidopropyl betaine, coconut fatty acid diethanolamide, clove essence, bamboo vinegar, naCl and LGP.

It can be seen that anionic surfactant sodium polyoxyethylene fatty alcohol sulfate and amphoteric surfactant cocamidopropyl betaine are a common surfactant combination in daily chemical systems.

However, when the existing acrylic acid (ester) copolymer is used for suspension thickening of the system, the turbidity of the system is generally high, and the low turbidity pH range of the system is 6.7-7 as exemplified by carbowave sf-1, which presents challenges and limitations for the operation requirements of operators and the application range of the formula.

Therefore, the application aims to solve the technical problem of improving the light transmittance of the surface active system in a wide pH range.

Disclosure of Invention

The main purpose of the invention is to provide a transparent thickening suspension system which can provide better light transmittance in the pH range of 5-7, and the invention also discloses a preparation method and application of the system.

According to a first aspect of the present invention there is provided a transparent thickened suspension comprising the following components in parts by weight:

10-30 parts of fatty alcohol polyoxyethylene ether sodium sulfate;

1-10 parts of cocamidopropyl betaine;

Acrylic emulsion Emul, 4004-10 parts;

a proper amount of sodium hydroxide or citric acid;

the balance of water;

The pH range of the system is 5-7.

Acrylic emulsion Emul A400 supplied by Guangzhou Tiancigao New Material Co., ltd., cocoamidopropyl betaine supplied by Guangzhou Tiancigao New Material Co., ltd., brand TC-CAB35;

The chemical formula of the fatty alcohol polyoxyethylene ether sodium sulfate is RO (CH ₂CH₂O)_n-SO₃ Na (n=2 or 3, R is 12-15 alkyl), and the fatty alcohol polyoxyethylene ether sodium sulfate is purchased from Hunan Lichen real company, inc., and the fatty alcohol polyoxyethylene ether sodium sulfate belongs to common materials in the field and can be purchased from other suppliers.

The transparent thickening suspension system comprises the following components in parts by weight:

15-20 parts of fatty alcohol polyoxyethylene ether sodium sulfate;

6-10 parts of cocamidopropyl betaine;

Acrylic emulsion Emul-8 parts;

Proper amount of sodium hydroxide or citric acid and the balance of water.

18 parts of fatty alcohol polyoxyethylene ether sodium sulfate;

8 parts of cocamidopropyl betaine;

Emul 4007 parts of acrylic emulsion 4007 parts;

Proper amount of sodium hydroxide or citric acid and the balance of water.

Meanwhile, the invention also discloses a preparation method of the transparent thickening suspension system, which is characterized by comprising the following steps:

Adding a certain amount of water into a beaker, adding sodium fatty alcohol polyoxyethylene ether sulfate for uniform dispersion, then adding cocamidopropyl betaine for uniform dispersion, then adding acrylic emulsion Emul 400,400 for uniform dispersion, and finally adding sodium hydroxide or citric acid for uniform dispersion.

The transparent thickening suspension system is used as thickening suspension additive of daily chemical products.

In the application of the transparent thickening suspension system, the daily chemical product is bath lotion, shampoo, makeup removal, hand cleanser or face cleaning gel.

One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

In the surfactant system of fatty alcohol polyoxyethylene ether sodium sulfate and cocamidopropyl betaine, the invention is applicable to the acrylic emulsion Emul as a suspension stabilizing thickener, so that the system can keep better light transmittance within the pH range of 5-7.

Drawings

The invention is further described below with reference to the drawings and examples;

FIG. 1 is a turbidity chart of example 1 and comparative example 1 of the present application at different pH conditions.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the invention.

Example 1

A preparation method of a suspension system comprises the following steps:

The formulation is shown in Table 1 below:

Table 1 formulation table

In Table 1, the pH was adjusted between 5 and 8, and FIG. 1 shows the turbidity change trend at pH 5 to 8, where the pH range of 5 to 7 performed well.

The viscosity thereof in the pH range of 5 to 7 is referred to in Table 2 as follows:

TABLE 2 pH and viscosity mapping table

pH	Viscosity/mPa.s
		5.0	5200
5.6	4610
		5.9	4460
6.3	3900
		6.5	3660
6.7	4390
		6.8	4580
7.0	4400

Example 2

A preparation method of a suspension system comprises the following steps:

The formulation is shown in Table 3 below:

Table 3 recipe table

In Table 3, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 at pH 5-7.

Example 3

A preparation method of a suspension system comprises the following steps:

The formulation is shown in Table 4 below:

table 4 formulation table

In Table 4, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 at pH 5-7.

Example 4

A method for preparing a suspension system, the formulation of which is shown in table 5 below:

Table 5 recipe table

In Table 5, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 at pH 5-7.

Example 5

A method for preparing a suspension system, the formulation of which is shown in table 6 below:

Table 6 recipe table

In Table 6, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 at pH 5-7.

Example 6

A method for preparing a suspension system, the formulation of which is shown in table 7 below:

Table 7 recipe table

In Table 7, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 at pH 5-7.

Example 7

A method for preparing a suspension system, the formulation of which is shown in table 8 below:

table 8 formulation table

In Table 8, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 at pH 5-7.

Example 8

A method for preparing a suspension system, the formulation of which is shown in table 9 below:

Table 9 formulation table

In Table 9, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 at pH 5-7.

Comparative example 1

A preparation method of a suspension system comprises the following steps:

Adding a certain amount of water into a beaker, adding sodium fatty alcohol polyoxyethylene ether sulfate for uniform dispersion, then adding cocamidopropyl betaine for uniform dispersion, then adding acrylic emulsion SF-1 (a commercially available product) for uniform dispersion, and finally adding sodium hydroxide or citric acid for uniform dispersion.

The formulation is shown in Table 10 below:

Table 10 recipe table

In Table 10, the pH was adjusted between 5 and 8, and the turbidity of the system was lower than 50 in the pH range of 6.6 to 7, as tested with reference to FIG. 1.

Comparative example 2

A preparation method of a suspension system comprises the following steps:

Adding a certain amount of water into a beaker, adding sodium laurate sarcosinate for uniform dispersion, then adding cocamidopropyl betaine for uniform dispersion, then adding acrylic emulsion Emul 400,400 for uniform dispersion, and finally adding sodium hydroxide or citric acid for uniform dispersion.

The formulation is shown in Table 11 below:

Table 11 recipe table

In Table 11, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 in the pH range of 7 to 8 and more than 50 in other pH ranges.

Comparative example 3

A preparation method of a suspension system comprises the following steps:

Adding a certain amount of water into a beaker, adding sodium methyl cocoyl taurate for uniform dispersion, then adding cocamidopropyl betaine for uniform dispersion, then adding acrylic emulsion Emul 400,400 for uniform dispersion, and finally adding sodium hydroxide or citric acid for uniform dispersion.

The formulation is shown in Table 12 below:

Table 12 recipe table

In Table 12, the pH was adjusted between 5 and 8, and the turbidity of the system was tested to be less than 50 in the pH range of 7 to 8 and more than 50 in other pH ranges.

To sum up:

The formula of the scheme must have better light transmittance in a wider pH range in the presence of sodium fatty alcohol polyoxyethylene ether sulfate, cocamidopropyl betaine and Emul 400,400.

This rule is not applicable in other anionic surfactant and amphoteric surfactant systems.

The system of the scheme is suitable for daily chemical products such as bath lotion, shampoo, cleansing lotion, face cleansing gel and the like.

Claims

1. The transparent thickening suspension system is characterized by comprising the following components in parts by weight:

10-30 parts of fatty alcohol polyoxyethylene ether sodium sulfate;

1-10 parts of cocamidopropyl betaine;

Acrylic emulsion Emul, 4-10 parts;

a proper amount of sodium hydroxide or citric acid;

The balance water was added to 100 parts;

The turbidity of the system is kept below 50 when the pH of the system is in the range of 5-7.

2. The transparent thickening suspension according to claim 1, comprising the following components in parts by weight:

15-20 parts of fatty alcohol polyoxyethylene ether sodium sulfate;

6-10 parts of cocamidopropyl betaine;

acrylic emulsion Emul-8 parts;

Proper amount of sodium hydroxide or citric acid and the balance of water are added to 100 parts.

3. A transparent thickening suspension according to claim 2, comprising the following components in parts by weight:

18 parts of fatty alcohol polyoxyethylene ether sodium sulfate;

8 parts of cocamidopropyl betaine;

Acrylic emulsion Emul 400,400 parts;

4. A process for the preparation of a transparent thickening suspension according to any one of claims 1 to 3, characterized in that it comprises in particular:

5. Use of a transparent thickening suspension according to any one of claims 1 to 3, wherein the transparent thickening suspension is used as a thickening suspension additive for a daily chemical product.

6. The use of a transparent thickening suspension according to claim 5, wherein the daily chemical product is a body wash, shampoo, make-up remover, hand cleanser or face wash gel.