Fibroin sunscreen cream and preparation method thereof

Abstract

The invention discloses a fibroin sunscreen cream and a preparation method thereof, and relates to the technical field of daily chemicals. The fibroin sunscreen cream comprises the following raw materials in parts by weight: 10-20 parts of an oil phase, 60-80 parts of a water phase and 3-5 parts of an emulsifier, wherein the water phase is prepared from the following raw materials in parts by weight: 100-200 parts of water, 10-20 parts of glycerol, 8-10 parts of graphene oxide, 3-5 parts of dopamine and 8-10 parts of fibroin; chemical bonds are at least partially formed between dopamine and fibroin; at least part of a dopamine molecular chain is embedded into the main chain of a fibroin molecular chain; nano inorganic powder is embedded into an inter-layer structure of graphene oxide; andthe nano inorganic powder is nano zinc oxide and / or nano titanium dioxide. The product obtained by the invention has a good sunscreen effect and an excellent moisturizing effect at the same time.

Description

technical field

[0001] The invention relates to the technical field of daily chemicals, in particular to a silk protein sunscreen and a preparation method thereof. Background technique

[0002] The effects of silk protein include but are not limited to beautifying and nourishing the skin, moisturizing the skin, moisturizing and sun protection, etc. It is one of the functional additives in daily chemicals that are generally applicable at present. Adding silk protein to daily chemicals, replacing conventional additives, not only has higher safety, prevents skin from allergic dermatitis, but also can give full play to the natural efficacy of silk protein.

[0003] Natural silk replaces broad-spectrum sunscreen agents in traditional sunscreen products, such as nano-titanium dioxide / zinc oxide, etc., and has become one of the trends in safe and effective sunscreen products; however, although sunscreen products inherit the excellent sunscreen performance of silk protein, their moi...

Examples

preparation example Construction

[0029] A preparation method of silk protein sunscreen, the specific preparation steps comprising:

[0030] Preparation of the water phase:

[0031] In parts by weight, 100-200 parts of water, 10-20 parts of glycerin, 8-10 parts of graphene oxide, 3-5 parts of dopamine, and 8-10 parts of silk protein are sequentially taken;

[0032] After mixing water, glycerin and silk protein, ball mill for 4-6 hours to obtain ball mill;

[0033] Add graphene oxide and dopamine to the ball mill, and after ultrasonic dispersion, continue ball milling and mixing for 3-5 hours to obtain the aqueous phase;

[0034] Product formulation:

[0035] In parts by weight, take 10-20 parts of oil phase, 60-80 parts of water phase, and 3-5 parts of emulsifier, first mix and heat the oil phase and emulsifier, then add the water phase, at a temperature of 65- Under the condition of 70°C, mix and discharge to obtain the product silk protein sunscreen.

[0036] Further, the oil phase includes the following...

Embodiment 1

[0041] Pretreatment of graphene oxide:

[0042] Mix graphene oxide and nano-inorganic powder at a mass ratio of 10:1-20:1, pour into deionized water that is 8-10 times the mass of graphene oxide, at an ultrasonic frequency of 45-65kHz and a temperature of 45-65 Under the condition of ℃, keep warm and ultrasonically disperse for 10-60min, then filter with suction, and wash the filter cake with deionized water for 3-5 times, then dry the washed filter cake at a temperature of 105-110 ℃ to constant weight, and discharge , to obtain pretreated graphene oxide; the nano-inorganic powder is nano-zinc oxide and / or nano-titanium dioxide;

[0043] Preparation of the water phase:

[0044] In parts by weight, 100-200 parts of water, 10-20 parts of glycerin, 8-10 parts of pretreated graphene oxide, 3-5 parts of dopamine, and 8-10 parts of silk protein are sequentially taken;

[0045] After mixing water, glycerin and silk protein, let it swell at room temperature for 8-24 hours, then pour...

Embodiment 2

[0050] Pretreatment of graphene oxide:

[0051] Mix graphene oxide and nano-inorganic powder at a mass ratio of 10:1-20:1, pour into deionized water that is 8-10 times the mass of graphene oxide, at an ultrasonic frequency of 45-65kHz and a temperature of 45-65 Under the condition of ℃, keep warm and ultrasonically disperse for 10-60min, then filter with suction, and wash the filter cake with deionized water for 3-5 times, then dry the washed filter cake at a temperature of 105-110 ℃ to constant weight, and discharge , to obtain pretreated graphene oxide; the nano-inorganic powder is nano-zinc oxide and / or nano-titanium dioxide;

[0052]Preparation of the water phase:

[0053] In parts by weight, 100-200 parts of water, 10-20 parts of glycerin, 8-10 parts of pretreated graphene oxide, 3-5 parts of dopamine, and 8-10 parts of silk protein are sequentially taken;

[0054] After mixing water, glycerin and silk protein, let it swell at room temperature for 8-24 hours, then pour ...

technical field

[0001] The invention relates to the technical field of daily chemicals, in particular to a silk protein sunscreen and a preparation method thereof. Background technique

[0002] The effects of silk protein include but are not limited to beautifying and nourishing the skin, moisturizing the skin, moisturizing and sun protection, etc. It is one of the functional additives in daily chemicals that are generally applicable at present. Adding silk protein to daily chemicals, replacing conventional additives, not only has higher safety, prevents skin from allergic dermatitis, but also can give full play to the natural efficacy of silk protein.

[0003] Natural silk replaces broad-spectrum sunscreen agents in traditional sunscreen products, such as nano-titanium dioxide / zinc oxide, etc., and has become one of the trends in safe and effective sunscreen products; however, although sunscreen products inherit the excellent sunscreen performance of silk protein, their moi...

Examples

preparation example Construction

[0029] A preparation method of silk protein sunscreen, the specific preparation steps comprising:

[0030] Preparation of the water phase:

[0031] In parts by weight, 100-200 parts of water, 10-20 parts of glycerin, 8-10 parts of graphene oxide, 3-5 parts of dopamine, and 8-10 parts of silk protein are sequentially taken;

[0032] After mixing water, glycerin and silk protein, ball mill for 4-6 hours to obtain ball mill;

[0033] Add graphene oxide and dopamine to the ball mill, and after ultrasonic dispersion, continue ball milling and mixing for 3-5 hours to obtain the aqueous phase;

[0034] Product formulation:

[0035] In parts by weight, take 10-20 parts of oil phase, 60-80 parts of water phase, and 3-5 parts of emulsifier, first mix and heat the oil phase and emulsifier, then add the water phase, at a temperature of 65- Under the condition of 70°C, mix and discharge to obtain the product silk protein sunscreen.

[0036] Further, the oil phase includes the following...

Embodiment 1

[0041] Pretreatment of graphene oxide:

[0042] Mix graphene oxide and nano-inorganic powder at a mass ratio of 10:1-20:1, pour into deionized water that is 8-10 times the mass of graphene oxide, at an ultrasonic frequency of 45-65kHz and a temperature of 45-65 Under the condition of ℃, keep warm and ultrasonically disperse for 10-60min, then filter with suction, and wash the filter cake with deionized water for 3-5 times, then dry the washed filter cake at a temperature of 105-110 ℃ to constant weight, and discharge , to obtain pretreated graphene oxide; the nano-inorganic powder is nano-zinc oxide and / or nano-titanium dioxide;

[0043] Preparation of the water phase:

[0044] In parts by weight, 100-200 parts of water, 10-20 parts of glycerin, 8-10 parts of pretreated graphene oxide, 3-5 parts of dopamine, and 8-10 parts of silk protein are sequentially taken;

[0045] After mixing water, glycerin and silk protein, let it swell at room temperature for 8-24 hours, then pour...

Embodiment 2

[0050] Pretreatment of graphene oxide:

[0051] Mix graphene oxide and nano-inorganic powder at a mass ratio of 10:1-20:1, pour into deionized water that is 8-10 times the mass of graphene oxide, at an ultrasonic frequency of 45-65kHz and a temperature of 45-65 Under the condition of ℃, keep warm and ultrasonically disperse for 10-60min, then filter with suction, and wash the filter cake with deionized water for 3-5 times, then dry the washed filter cake at a temperature of 105-110 ℃ to constant weight, and discharge , to obtain pretreated graphene oxide; the nano-inorganic powder is nano-zinc oxide and / or nano-titanium dioxide;

[0052]Preparation of the water phase:

[0053] In parts by weight, 100-200 parts of water, 10-20 parts of glycerin, 8-10 parts of pretreated graphene oxide, 3-5 parts of dopamine, and 8-10 parts of silk protein are sequentially taken;

[0054] After mixing water, glycerin and silk protein, let it swell at room temperature for 8-24 hours, then pour ...