Preparation method of environment-friendly hydrogel, obtained product and application

Abstract

The invention relates to the technical field of ecological materials, in particular to a preparation method of novel environment-friendly hydrogel, an obtained product and application. The preparation method comprises the following steps: preparing an intermediate phase-oil phase, a water phase and a C phase; and mixing the oil-phase mixture and the water-phase mixture, adding the C-phase mixture, and continuously stirring to obtain the hydrogel. The invention provides a novel hydrogel material, and the construction of the material is based on the physical characteristics of non-toxicity, moisture retention, sterilization and the like of an application material, so that the novel material has environment-friendly performance. Through weak interaction of three phases, the hydrogel has a'water locking 'function, so that the environment-friendly hydrogel is formed; the novel environment-friendly hydrogel material is prepared by adopting a three-phase mixing mode for the first time, can be applied to the field of life science, is simple in operation method and obvious in water retention and dust (pollen) suppression effect, and has potential application value in the fields of cosmetic application and ecological environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of ecological materials, and in particular to a preparation method of a novel environmentally friendly hydrogel and the obtained product and application. Background Art

[0002] Most water-retaining materials are a kind of functional polymer material with high water absorption, which is widely used in agriculture, forestry, gardening, building materials and other fields. The most widely used main ingredient is super absorbent resin. This material can quickly absorb and retain deionized water hundreds of times its own weight, forming a gel-like substance that is difficult to dehydrate even under external force. Water-retaining materials have a particularly strong water absorption capacity, are non-toxic and harmless, and can release and absorb water repeatedly, so they are likened to "micro-reservoirs." Its water absorption principle lies in the fact that it has strong hydrophilic groups in its molecules, which can quickly swell in solvents to form a gel-like substance with high mechanical strength, effectively locking in moisture and preventing it from being lost and volatilized.

[0003] However, most traditional water-retaining materials, including hydrogels, are organic polymers. Although they have certain applications, they cause environmental pollution to some extent during the application process. More importantly, the application path is single. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a method for preparing an environmentally friendly hydrogel water-retaining material, which is simple and highly operable; the prepared material can achieve the effect of water retention and dust suppression by virtue of its own "water-locking" and high viscosity characteristics, through the moisturizing and sticky characteristics of the hydrogel in a diluted state, and can especially reduce pollen dispersal and control allergens. It has certain application value in the fields of ecology and life sciences.

[0005] The present invention also provides a hydrogel prepared by the preparation method.

[0006] Another object of the present invention is to provide the application of the hydrogel.

[0007] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: The present invention provides a method for preparing an environmentally friendly hydrogel, comprising the following steps: (1) Preparation of intermediate phase-oil phase: Vaseline, cetearyl alcohol and sorbitan olivate are mixed and heated with stirring; silicone oil, isononyl isononanoate and caprylic / capric triglyceride are added and stirred for 10 minutes to obtain a uniform oil phase mixture; (2) Preparation of intermediate phase-aqueous phase: glycerol, pentylene glycol, betaine, EDTA, and hyaluronic acid are mixed and stirred, purified water is added, heated, and stirred evenly to obtain an aqueous phase mixture; (3) Preparation of intermediate phase - phase C: mixing panthenol, ceramide and AIT at room temperature to obtain a phase C mixture; (4) After mixing the oil phase mixture and the water phase mixture, add the C phase mixture and continue stirring to obtain a hydrogel. Furthermore, in step (1), the mass ratio of the vaseline, cetearyl alcohol, sorbitan olivate, silicone oil, isononyl isononanoate and GTCC is 7:5:3:3:3:5; the vaseline, mixed alcohol and sorbitan olivate are mixed and heated to 80° C. and stirred for 5 minutes; and the stirring time is continued for 10 to 15 minutes.

[0008] Furthermore, in step (2), the mass ratio of glycerol, pentylene glycol, betaine, EDTA and hyaluronic acid is 5:0.8:0.5:0.2:0.01:0.2; pure water is added and heated to 80°C.

[0009] Furthermore, in step (3), the mass ratio of panthenol, ceramide and AIT is 4:(1-2):(1-1.5).

[0010] Furthermore, in step (4), the mass ratio of the oil phase mixture, the water phase mixture and the C phase mixture is 7.4-7.5:20-21:1.

[0011] Furthermore, in step (4), after the oil phase mixture and the water phase mixture are mixed, they are homogenized for 5 minutes, then cooled to 45°C, and then the C phase mixture is added; then they are homogenized again for 5 minutes, and the mixture is cooled to 35°C while continuing to stir.

[0012] The present invention also provides a hydrogel prepared by the above preparation method.

[0013] The present invention also provides the use of the hydrogel in the preparation of cosmetics and / or the field of ecological environmental protection.

[0014] Furthermore, the hydrogel is used in the preparation of cosmetics for moisturizing, suppressing dust and reducing pollen transmission and / or in the field of ecological environmental protection.

[0015] The water-retaining material prepared by the invention does not need to be filtered and is in a white colloidal state.

[0016] The beneficial effects of the present invention are: (1) The present invention provides a new type of hydrogel material, the construction of which is based on the physical properties of the applied material, such as non-toxicity, moisturizing, and sterilization. Therefore, this new type of material has environmentally friendly properties. Through the weak interaction of the three phases, it has the function of "locking water", thereby forming an environmentally friendly hydrogel; (2) The present invention adopts a three-phase mixing mode for the first time to prepare a new type of environmentally friendly hydrogel material, which can be applied in the field of life sciences. The operation method is simple, and the water retention and dust (pollen) suppression effects are obvious. It has potential application value in the fields of cosmetics and ecological environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Overall schematic diagram of the hydrogel preparation process; Figure 2 A sample image of the hydrogel prepared in Example 1; Figure 3 These are images of pollen under different treatment conditions; Figure 4 The adhesion effect of the material on pollen; Figure 5 The effects of water treatment and material treatment on pollen dispersal after air drying; Figure 6 Differences in optical signals between pollen treated with materials and dry pollen. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further explained and illustrated by means of specific embodiments below.

[0019] In the present invention, unless otherwise specified, the raw materials used are commercially available products well known to those skilled in the art.

[0020] Example 1 (1) Preparation of oil phase: 14 g of vaseline, 10 g of cetearyl alcohol, and 6 g of sorbitan olivate (B22) were mixed and heated to 80°C and stirred for 10 minutes; 6 g of silicone oil, 6 g of isononyl isononanoate, and 10 g of GTCC were added and stirred for 20 minutes to obtain an oil phase mixture; (2) Mix 16 g of glycerol, 10 g of pentylene glycol, 4 g of betaine, 0.2 g of EDTA, and 4 g of hyaluronic acid, add 106.8 mL of purified water, and heat to 80°C to obtain an aqueous phase mixture; (3) Mix 4 g of panthenol, 2 g of ceramide, and 1 g of AIT and stir at room temperature to obtain a phase C mixture; (4) After the water phase mixture and the oil phase mixture are mixed, homogenize for 5 minutes, then cool to 45 degrees, add the C phase mixture, homogenize for 5 minutes, continue stirring and cool to 35 degrees to obtain Yunrui No. 1 white hydrogel material, which is stored at room temperature.

[0021] The process of preparing the hydrogel in Example 1 is as follows Figure 1 As shown. The specific prepared hydrogel material is as follows Figure 2 shown.

[0022] Effect Example 1 The hydrogel prepared in Example 1 was used to verify its effect on pollen: The hydrogel prepared in Example 1 was diluted into an aqueous solution to obtain 100 mL of a 5 g / L material stock solution; 50 μL of the solution was respectively dripped onto the surface of the Hudixiao pollen for wetting. The reference group was dripped with the same amount of aqueous solution to wet the pollen and no solvent was added. Bright field observation was performed using a confocal microscope. Under the wetting condition, the focusing of the microscope showed that the material and the water-soaked pollen were both adhered to the wall compared with those without any solvent ( Figure 3 ). The imaging condition is 20x objective lens.

[0023] Effect Example 2 The experimental conditions were the same as those in Example 1. The hydrogel prepared in Example 1 was diluted into an aqueous solution to obtain 100 mL of a 5 g / L material stock solution. 50 μL of the solution was dripped onto the surface of the Hudixiao pollen to wet it. Imaging analysis found that under the aggregation condition, the material had a certain adhesion ability to the pollen ( Figure 4 ).

[0024] Effect Example 3 The hydrogel prepared in Example 1 was diluted into an aqueous solution to obtain 100 mL of a material mother solution with a concentration of 5 g / L; 50 μL of each was taken and dropped onto the surface of the Hudixiao pollen to moisten it. The same amount of aqueous solution in the reference group was used to moisten the pollen. After drying at 40°C for 20 hours, real-time pollen imaging tracking was performed (imaging conditions: excitation wavelength 561nm, emission band 600-700 nm. The interval between continuous fluorescence scans was 30 s. No commercial dyes were added during the imaging process, and all images were self-luminescent pollen imaging). The water-moistened pollen showed obvious dynamic changes and had a weak self-luminescent signal. The pollen treated with the gel material did not show a dynamic effect, adhered better to the wall, and showed a stronger fluorescence signal under the same conditions ( Figure 5 ). Similarly, the pollen treated with the material also showed a strong fluorescence signal compared with the dry pollen ( Figure 6 ).

[0025] From the above experimental examples, it can be seen that the diluted gel material has a strong inhibitory effect on pollen dispersal, indicating that the gel material prepared by the present invention has excellent water retention performance and viscosity.

[0026] When selecting an implementation method, it should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for preparing an environmentally friendly hydrogel, characterized in that: The following steps are involved: (1) Preparation of intermediate phase-oil phase: Vaseline, cetearyl alcohol and sorbitan olivate are mixed and heated with stirring; silicone oil, isononyl isononanoate and caprylic / capric triglyceride are added and stirred for 10 minutes to obtain a uniform oil phase mixture; (2) Preparation of intermediate phase-aqueous phase: glycerol, pentylene glycol, betaine, EDTA, and hyaluronic acid are mixed and stirred, purified water is added, heated, and stirred evenly to obtain an aqueous phase mixture; (3) Preparation of intermediate phase - phase C: mixing panthenol, ceramide and AIT at room temperature to obtain a phase C mixture; (4) After mixing the oil phase mixture and the water phase mixture, add the C phase mixture and continue stirring to obtain a hydrogel.

2. The preparation method according to claim 1, characterized in that: In step (1), the mass ratio of vaseline, cetearyl alcohol, sorbitan olivate, silicone oil, isononyl isononanoate and GTCC is 7:5:3:3:3:5; the vaseline, mixed alcohol and sorbitan olivate are mixed and heated to 80° C. and stirred for 5 minutes; the stirring time is continued for 10 to 15 minutes.

3. The preparation method according to claim 1, characterized in that: In step (2), the mass ratio of glycerol, pentylene glycol, betaine, EDTA and hyaluronic acid is 5:0.8:0.5:0.2:0.01:0.2; pure water is added and heated to 80°C.

4. The preparation method according to claim 1, characterized in that: In step (3), the mass ratio of panthenol, ceramide and AIT is 4:(1-2):(1-1.5).

5. The preparation method according to any one of claims 1 to 4, characterized in that: In step (4), the mass ratio of the oil phase mixture, the water phase mixture and the C phase mixture is 7.4-7.5:20-21:

1.

6. The preparation method according to claim 1 or 5, characterized in that: In step (4), after the oil phase mixture and the water phase mixture are mixed, they are homogenized for 5 minutes, then cooled to 45°C, and then the C phase mixture is added; then they are homogenized again for 5 minutes, and the temperature is continued to be stirred and cooled to 35°C.

7. A hydrogel prepared by the preparation method according to any one of claims 1 to 6.

8. Use of the hydrogel according to claim 7 in the preparation of cosmetics and / or in the field of ecological environmental protection.

9. The use according to claim 8, characterized in that: The hydrogel is used in the preparation of cosmetics for moisturizing, suppressing dust and reducing pollen transmission and / or in the field of ecological environmental protection.

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