CN112592435B

CN112592435B - Bio-based aqueous light-cured nail polish and preparation method thereof

Info

Publication number: CN112592435B
Application number: CN202011482394.0A
Authority: CN
Inventors: 孙丽娟; 蒋红梅; 赵波峰; 葛文高; 唐劲松
Original assignee: Shanghai Huafon New Material Research & Development Technology Co ltd
Current assignee: Shanghai Huafon New Material Research & Development Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2023-06-13
Anticipated expiration: 2040-12-15
Also published as: CN112592435A

Abstract

The invention provides a bio-based aqueous light-cured nail polish and a preparation method thereof, wherein the bio-based aqueous light-cured nail polish comprises a bio-based aqueous polyurethane emulsion and an auxiliary agent; the preparation raw materials of the bio-based aqueous polyurethane emulsion comprise the following components in percentage by weight: 0-15% of polyester polyol or polyether polyol, 5-15% of bio-based polyol, 5-10% of diisocyanate, 0.01-0.02% of catalyst, 0.5-1% of hydrophilic chain extender containing carboxyl or sulfonic acid group, 0.4-0.8% of alcohol chain extender, 0.1-1% of end capping agent, 0.3-0.8% of neutralizer, 25-40% of solvent, 0.1-2% of acrylic ester, 0.005-0.01% of aqueous photoinitiator and 35-45% of deionized water. The auxiliary agent comprises an adhesion promoter, a leveling agent, a wetting agent, a thickening agent, pearl and/or color paste, a brightening agent and a flavoring agent. The addition of the bio-based aqueous polyurethane emulsion and the adhesion promoter ensures that the prepared bio-based aqueous photo-curing nail polish has the characteristics of good wear resistance, good water resistance and strong adhesion.

Description

Bio-based aqueous light-cured nail polish and preparation method thereof

Technical Field

The invention relates to an aqueous nail polish, in particular to a bio-based aqueous light-cured nail polish and a preparation method thereof.

Background

The nail polish is a cosmetic for decorating and increasing the appearance of nails, and plays a role in protecting and beautifying nails by forming a layer of friction-resistant film on the surfaces of the nails. Nail polish is mainly composed of two parts: a part of the pigment is pigment, pigment or glitter; part of the composition is film forming agent and solvent. Traditional solvent-based nail polishes use some organic solvents, including acetone, ethyl acetate, phthalate, formaldehyde, etc., to promote film formation and quick drying of the nail polish. However, these organic solvents directly contact with human nails or skin, affect human health, and cause environmental pollution. In addition, solvent type nail polish can cause drying, yellowing, embrittlement of nails, and is unsuitable for long-term use and repeated use. Therefore, it is highly desirable to reduce or completely avoid the use of organic solvents in conventional nail polishes.

The appearance of the novel water-based nail polish effectively makes up the defects of the traditional solvent-based nail polish. The film forming agent of the aqueous nail polish is generally aqueous emulsion, which contains no organic solvent or only a small amount of organic solvent, so the prepared nail polish has no smell, no irritation, almost no harm to human health and meets the environmental protection requirement. CN104758196a discloses a water-based nail polish based on water-based polyurethane dispersoid, which takes the water-based polyurethane dispersoid as a main component and is matched with a brightening agent, a hardening agent, a thickening agent, an adhesion promoter and the like, a film forming auxiliary agent is not needed, the nail is not damaged, the water-based nail polish is very mild to human body, and the performances of green, environment protection, no toxicity and no smell are truly reflected. But its wear resistance and water resistance are still to be further improved.

The current water-based nail polish on the market has the following defects: the insufficient binding force between the aqueous nail polish and nails can easily cause the nail polish at the edge of the nails to be easy to peel and influence the beauty.

Therefore, how to provide a nail polish which meets the requirements of green environment protection, has better wear resistance, water resistance and strong adhesive force at the same time is a technical problem to be solved at present.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a bio-based aqueous light-cured nail polish and a preparation method thereof. The bio-based aqueous light-cured nail polish disclosed by the invention has the characteristics of good wear resistance, good water resistance and strong adhesive force.

To achieve the purpose, the invention adopts the following technical scheme:

in one aspect, the present invention provides a bio-based aqueous light curable nail polish comprising a bio-based aqueous polyurethane emulsion and an adjuvant; the preparation raw materials of the bio-based aqueous polyurethane emulsion comprise the following components in percentage by weight:

in the invention, the main component of the bio-based aqueous light-cured nail polish is bio-based aqueous polyurethane emulsion, and the main raw material bio-based polyol is derived from the bio-based material, so that the source is abundant and environment-friendly, and the bio-based aqueous polyurethane emulsion has no harm to human health; the hydrophilic chain extender containing carboxyl or sulfonic acid groups has better hydrophilicity, and the alcohol chain extender plays roles of enlarging the molecular weight and supporting the hard segment content of polyurethane; the addition of the end-capping agent and the acrylic ester can introduce double bonds into polyurethane molecular chains and nail polish, so that the nail polish is endowed with light curing functionality, ultraviolet irradiation curing can be further used after the nail polish is formed into a film, and the wear resistance and the water resistance of the nail polish can be obviously improved.

In the present invention, the amount of the polyester polyol or polyether polyol used in the preparation raw material of the bio-based aqueous polyurethane emulsion may be 0%, 5%, 10% or 15% or the like.

In the invention, the bio-based polyol can be used in an amount of 5%, 10% or 15% in the preparation raw material of the bio-based aqueous polyurethane emulsion.

In the invention, the diisocyanate can be used in an amount of 5%, 8% or 10% in the raw materials for preparing the bio-based aqueous polyurethane emulsion.

In the invention, the catalyst can be used in an amount of 0.01%, 0.015% or 0.02% in the preparation raw materials of the bio-based aqueous polyurethane emulsion.

In the invention, the amount of the hydrophilic chain extender containing carboxyl or sulfonic acid groups in the raw materials for preparing the bio-based aqueous polyurethane emulsion can be 0.5%, 0.8% or 1% and the like.

In the invention, the alcohol chain extender can be used in an amount of 0.4%, 0.5% or 0.8% in the preparation raw materials of the bio-based aqueous polyurethane emulsion.

In the invention, the usage amount of the end capping agent in the preparation raw materials of the bio-based aqueous polyurethane emulsion can be 0.1%, 0.5%, 0.6%, 0.8% or 1%.

In the invention, the dosage of the neutralizing agent in the preparation raw materials of the bio-based aqueous polyurethane emulsion can be 0.3%, 0.5% or 0.8% and the like.

In the invention, the solvent can be used in an amount of 25%, 30%, 35% or 40% in the preparation raw materials of the bio-based aqueous polyurethane emulsion.

In the invention, the amount of the acrylic ester used in the preparation raw material of the bio-based aqueous polyurethane emulsion can be 0.1%, 0.5%, 1% or 2% and the like.

In the invention, the water-based photoinitiator can be used in an amount of 0.005%, 0.0075% or 0.01% in the preparation raw materials of the bio-based water-based polyurethane emulsion.

In the invention, the deionized water can be used in an amount of 35%, 40% or 45% in the raw materials for preparing the bio-based aqueous polyurethane emulsion.

In the present invention, the total weight of the polyester polyol or polyether polyol and bio-based polyol is 10 to 30%, such as 10%, 20% or 30% or the like, of the total weight of the emulsion.

Preferably, the ratio of the total weight of the diisocyanate to the total weight of the polyester polyol or polyether polyol and bio-based polyol is from 0.3:1 to 0.8:1, such as 0.3:1, 0.5:1, 0.7:1 or 0.8:1, etc.

Preferably, the ratio of the total weight of the bio-based polyol to the total weight of diisocyanate is from 0.5:1 to 2:1, such as 0.5:1, 0.8:1, 1:1, 1.5:1 or 2:1, etc.

Preferably, the bio-based polyol comprises 30-100% by weight, e.g. 30%, 50%, 80% or 100% by weight, etc., of the total weight of the polyol.

Preferably, the end-capping agent comprises 2-8% by mass, such as 2%, 5%, 6% or 8% by mass, of the non-volatile components of the emulsion.

Preferably, the acrylate comprises 1-10% by mass of the non-volatile components of the emulsion, for example 1%, 5% or 10% etc.

Preferably, the solvent is used in an amount of 100-160%, such as 100%, 120%, 140% or 160% of the sum of the weights of polyol, diisocyanate, chain extender, capping agent, neutralizing agent and acrylate, etc.

In the present invention, the polyester polyol or polyether polyol is selected from a polycarbonate diol or a polytetrahydrofuran ether diol.

Preferably, the polyester polyols or polyether polyols each have a number average molecular weight of from 1000 to 2000, for example 1000, 1200, 1500, 1800 or 2000, etc.

Preferably, the bio-based polyol is selected from any one or a combination of at least two of modified soybean oil polyol, modified castor oil polyol, modified palm oil polyol, modified jatropha oil polyol or modified rapeseed oil polyol. The combination of at least two, such as modified soybean oil polyol and modified castor oil polyol, modified palm oil polyol and modified jatropha oil polyol, modified rapeseed oil polyol, and the like.

Preferably, the bio-based polyol contains graft copolymerized bio-based groups.

Preferably, the bio-based polyol has a number average molecular weight of 1000-2000, such as 1000, 1200, 1500, 1800, 2000, or the like.

Preferably, the diisocyanate is selected from any one or a combination of at least two of Hexamethylene Diisocyanate (HDI), isophorone diisocyanate (IPDI) or dicyclohexylmethane diisocyanate (HMDI). Combinations of the at least two, such as Hexamethylene Diisocyanate (HDI) and isophorone diisocyanate (IPDI), hexamethylene Diisocyanate (HDI) and dicyclohexylmethane diisocyanate (HMDI), and the like.

Preferably, the catalyst is selected from complex metal catalysts, preferably BICAT 8118.

Preferably, the hydrophilic chain extender containing carboxyl or sulfonic acid groups is selected from any one of 2, 2-dimethylolpropionic acid (DMPA), 2-dimethylolbutyric acid (DMBA) or sodium ethylenediamine ethanesulfonate.

Preferably, the alcohol chain extender is selected from any one or a combination of at least two of ethylene glycol, propylene glycol, butanediol, methyl propylene glycol, neopentyl glycol, hexanediol, 3-methyl-1, 5-pentanediol or ethanolamine. Combinations of the at least two, such as ethylene glycol and propylene glycol, butylene glycol and neopentyl glycol, and hexylene glycol, and the like.

Preferably, the end-capping agent is monohydroxyallyl alcohol selected from allyl alcohol and/or hydroxyethyl methacrylate.

Preferably, the neutralizing agent is selected from any one or a combination of at least two of triethylamine, ammonia water, N-methylmorpholine, N-ethylmorpholine, N-methyldiethanolamine or sodium hydroxide. Combinations of the at least two, such as triethylamine and ammonia, N-methylmorpholine and N-ethylmorpholine, and N-methyldiethanolamine, and the like.

Preferably, the solvent is selected from acetone and/or butanone.

Preferably, the acrylic ester is acrylic ester containing PEG blocks so as to ensure that the acrylic ester is uniformly dispersed in the aqueous polyurethane emulsion, and the structure is as follows:

where n=an integer from 2 to 6, e.g. n=2, 3, 4, 5 or 6.

Preferably, the aqueous photoinitiator is selected from any one or a combination of at least two of Irgacure-184, irgacure-819, irgacure-127, irgacure-1173 or Irgacure-907. Combinations of the at least two, such as Irgacure-184 and Irgacure-819, irgacure-127 and Irgacure-1173, irgacure-907, and the like.

In the invention, the bio-based aqueous polyurethane emulsion is prepared by the following preparation method:

(1) Uniformly mixing polyester polyol or polyether polyol, bio-based polyol and hydrophilic chain extender containing carboxyl or sulfonic acid group, adding diisocyanate and catalyst, and heating for reaction;

(2) Cooling, adding part of solvent and alcohol chain extender into the reaction liquid in the step (1), and reacting at a constant temperature;

(3) Adding a blocking agent into the reaction liquid in the step (2), carrying out heat preservation reaction, and then adding part of solvent and uniformly stirring;

(4) And (3) after cooling, adding a neutralizing agent, a residual solvent and a water-based photoinitiator into the reaction solution in the step (3), uniformly mixing, then performing water dispersion, then removing the solvent, adding acrylic ester, and uniformly stirring to obtain the bio-based water-based polyurethane emulsion.

In the invention, polyester polyol or polyether polyol, bio-based polyol and hydrophilic chain extender containing carboxyl or sulfonic acid group are mixed uniformly, and then diisocyanate and catalyst are added, so that the reaction can be carried out more uniformly by batch addition.

In the present invention, the temperature of the mixing in step (1) is 50 to 80 ℃, for example, 50 ℃, 60 ℃, 70 ℃, 80 ℃ or the like.

Preferably, the mixing in step (1) is for a period of time of 10-30min, such as 10min, 15min, 20min or 30min, etc.

Preferably, the temperature of step (1) is raised to 80-90 ℃, e.g. 80 ℃, 85 ℃ or 90 ℃, etc.

Preferably, the reaction time of step (1) is 2-3 hours, such as 2 hours, 2.5 hours or 3 hours, etc.

Preferably, the viscosity of the system at the end of the reaction in step (1) is controlled to be 3000-10000 mPas (e.g. 3000 mPas, 5000 mPas, 8000 mPas or 10000 mPas, etc.) -the NCO content is 4-6.5%, e.g. 4%, 5%, 6% or 6.5%.

Preferably, the temperature reduction in step (2) is to a temperature of 50-70 ℃, such as 50 ℃, 55 ℃, 60 ℃, 65 ℃, 70 ℃ or the like.

Preferably, the portion of the solvent in step (2) is such that the solvent then comprises 25-60%, e.g. 25%, 30%, 40%, 50% or 60% of the non-volatile components of the system, etc.

Preferably, the incubation in step (2) is for 2-6 hours, such as 2 hours, 3 hours, 4 hours, 5 hours or 6 hours, etc.

Preferably, the viscosity of the system at the end of the reaction in step (2) is controlled to be 400-1000 mPas (e.g. 400 mPas, 600 mPas, 800 mPas or 1000 mPas, etc.) -the NCO content is 1.5-2.5%, e.g. 1.5%, 2% or 2.5%.

Preferably, the incubation in step (3) is for 2-3 hours, such as 2 hours, 2.5 hours or 3 hours, etc.

Preferably, the-NCO content of the system is controlled to 0 before part of the solvent is added in step (3).

Preferably, the portion of the solvent in step (3) is such that the solvent then comprises 25-60%, e.g. 25%, 30%, 40%, 50% or 60% of the non-volatile components of the system, etc.

Preferably, the cooling in step (4) is to a temperature below 40 ℃, e.g. 40 ℃, 35 ℃, 30 ℃, 25 ℃, 20 ℃, 10 ℃ or the like.

Preferably, the water dispersion of step (4) is dispersed with deionized water.

Preferably, the solvent removal in step (4) is carried out at-0.1 Mpa.

In the invention, based on 100 parts by weight of the bio-based aqueous polyurethane emulsion, the auxiliary agent comprises the following components in parts by weight:

in the invention, the addition of the adhesion promoter can improve the binding force between the nail polish and nails, and effectively avoid the falling off and skinning of the nail polish.

In the present invention, the adhesion promoter may be used in an amount of 1 part, 2 parts, 2.5 parts, 3 parts, 4 parts, 4.5 parts, 5 parts, or the like based on 100 parts by weight of the bio-based aqueous polyurethane emulsion.

In the present invention, the leveling agent may be used in an amount of 0.5 part, 0.8 part, 1 part, 1.5 parts, or the like based on 100 parts by weight of the bio-based aqueous polyurethane emulsion.

In the present invention, the wetting agent may be used in an amount of 0.5 part, 0.8 part, 1 part, 1.5 parts, or the like based on 100 parts by weight of the bio-based aqueous polyurethane emulsion.

In the present invention, the thickener may be used in an amount of 0.8 parts, 1 part, 1.2 parts, 1.5 parts, 2 parts, or the like based on 100 parts by weight of the bio-based aqueous polyurethane emulsion.

In the invention, the pearl and/or color paste can be used in an amount of 5 parts, 8 parts, 10 parts, 13 parts or 15 parts, etc. based on 100 parts by weight of the bio-based aqueous polyurethane emulsion.

In the present invention, the amount of the brightening agent may be 0.3 part, 0.5 part, 0.8 part, 1 part, or the like based on 100 parts by weight of the bio-based aqueous polyurethane emulsion.

In the present invention, the flavoring agent may be used in an amount of 0.1 part, 0.2 part, 0.3 part, 0.5 part, or the like based on 100 parts by weight of the bio-based aqueous polyurethane emulsion.

In the invention, the adhesion promoter is selected from vinyl silane coupling agent and amino coupling agent, and the two adhesion promoters are added simultaneously, so that the adhesion between the nail polish and the nail can be improved, and the photo-curing capability of the nail polish can be improved.

Preferably, the vinylsilane coupling agent is selected from KBM-1003 and/or KBE-1003.

Preferably, the amino coupling agent is selected from any one or a combination of at least two of KBM-602, KBM-603 or KBE-603. Combinations of the at least two, e.g., KBM-602 and KBM-603, KBM-602 and KBE-603, etc.

In the invention, the leveling agent is a water-soluble leveling agent, preferably any one or a combination of at least two of BYK-333, BYK-307 or Digao 450. Combinations of the at least two, e.g., BYK-333 and BYK-307, BYK-333 and Digao 450, etc.

Preferably, the wetting agent is selected from any one or a combination of at least two of BYK-346, crylen LCN407, digao 4100 or Michaelk 77. Combinations of the at least two, e.g., BYK-346 and Crylen LCN407, digao 4100 and Michaelis L77, etc.

Preferably, the thickener is selected from any one or a combination of at least two of HEUR type thickeners, cellulose ether type thickeners, bentonite or acrylic type thickeners. Combinations of the at least two, such as HEUR-based thickeners and bentonite, cellulose ether-based thickeners and acrylic thickeners, and the like.

Preferably, the acrylic thickener is selected from

ASE-60 and/or TT-935.

Preferably, the pearlescent and/or color paste is selected from pearlescent powder and/or water-soluble color paste.

Preferably, the pearlescent powder is selected from

Starlight Blue、/>

Staright Red or +.>

Any one or a combination of at least two of the groups of Precious Gold. Combinations of at least two of the said groups, e.g.>

Starlight Blue and +.>

Starlight Red、/>

Starlight Blue and +.>

Precious Gold, etc.

Preferably, the water-soluble color paste is selected from SM-9815 and/or R4171.

Preferably, the brightening agent is selected from any one or a combination of at least two of water-soluble silicone oils, preferably KF96-100CS and/or PMX200-100.

Preferably, the flavoring is selected from water-soluble flavoring, preferably TCW2890404 and/or CQ-RGJ-001.

In another aspect, the present invention provides a method of preparing the bio-based aqueous photocurable nail polish as described above, comprising the steps of:

and uniformly stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent to obtain the bio-based aqueous light-cured nail polish.

In the present invention, the stirring speed is 300 to 800rpm, for example, 300rpm, 400rpm, 500rpm, 600rpm, 700rpm, 800rpm, or the like.

Preferably, the stirring time is 1-3 hours, such as 1 hour, 1.5 hours, 2 hours, or 3 hours, etc.

Compared with the prior art, the invention has at least the following beneficial effects:

(1) The main component of the bio-based aqueous light-cured nail polish disclosed by the invention is bio-based aqueous polyurethane emulsion, and the main raw material bio-based polyol is derived from a bio-based material, so that the bio-based aqueous light-cured nail polish is rich in sources, environment-friendly and harmless to human health;

(2) According to the invention, double bonds can be introduced into polyurethane molecular chains and nail polish by adding the end capping agent and the acrylic ester, so that the nail polish can be photo-cured, ultraviolet irradiation can be further used for curing after film formation, and the wear resistance (7-9 minutes) and water resistance (8-9 minutes) of the nail polish can be obviously improved by using the end capping agent monohydroxyallyl alcohol compound acrylic ester, so that the service life of the nail polish can be effectively prolonged; the bio-based aqueous polyurethane emulsion has the characteristics of high transparency and high brightness (transparency: 52-85%) due to small particle size of emulsion particles and further curing by photoinitiation;

(3) The adhesion promoter can improve the binding force between the nail polish and nails, and effectively avoid the falling off and skinning of the nail polish.

Detailed Description

The technical scheme of the invention is further described by the following specific embodiments. It will be apparent to those skilled in the art that the examples are merely to aid in understanding the invention and are not to be construed as a specific limitation thereof.

Example 1

In this example, a bio-based aqueous light curable nail polish is provided, comprising a bio-based aqueous polyurethane emulsion and an adjuvant; the preparation raw materials of the bio-based aqueous polyurethane emulsion comprise the following components in percentage by weight:

wherein the modified soybean oil polyol has a number average molecular weight of 1000; modified soybean oil polyol was purchased from Korea SK Co., and catalyst BICAT 8118 was purchased from the American leading chemical company, allyl alcohol was purchased from DIC Co., and Irgacure-184 was purchased from Basoff, germany.

The preparation method of the bio-based aqueous polyurethane emulsion comprises the following steps:

(1) Mixing modified soybean oil polyol and 2, 2-dimethylolpropionic acid (DMPA) at 50 ℃ for 15min, then adding dicyclohexylmethane diisocyanate (HMDI), hexamethylene Diisocyanate (HDI) and a catalyst BICAT 8118, heating to 85 ℃ for reaction for 2.5h until the system viscosity is 4000 mPa.s and the NCO content is 5.94%;

(2) Cooling to 50 ℃, adding part of acetone and methyl propylene glycol into the reaction liquid in the step (1) to make the acetone account for 30% of non-volatile components in the system, preserving heat for 4 hours, and reacting until the viscosity of the system is 550 mPa.s and the-NCO content is 2.09%;

(3) Adding allyl alcohol into the reaction liquid in the step (2), carrying out heat preservation reaction for 2 hours until the-NCO content of the system is 0, and then adding part of acetone to make the acetone account for 30% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 10 ℃, adding triethylamine, residual acetone and Irgacure-184 into the reaction liquid in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding triethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

Wherein the-NCO content was measured by means of an Shimadzu infrared spectrometer (model: iCAN 9).

Based on 100 parts by weight of the bio-based aqueous polyurethane emulsion, the auxiliary agent comprises the following components in parts by weight:

wherein the adhesion promoter is purchased from the confidence, the leveling agent and the wetting agent are purchased from the Pick chemistry, the thickener is purchased from the Rongkola Hasi, the color paste is purchased from the Suzhou world name, the brightening agent is purchased from the confidence, and the flavoring agent is purchased from the medical device.

The preparation method of the bio-based aqueous light-cured nail polish comprises the following steps:

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 1.5 hours at the rotating speed of 600rpm to obtain the bio-based aqueous light-cured nail polish.

Example 2

wherein the polytetrahydrofuran ether glycol has a number average molecular weight of 2000 and the modified soybean oil polyol has a number average molecular weight of 1000; modified soybean oil polyol was purchased from Korea SK Co., and catalyst BICAT 8118 was purchased from the American leading chemical company, allyl alcohol was purchased from DIC Co., and Irgacure-184 was purchased from Basoff, germany.

(1) Mixing polytetrahydrofuran ether glycol, modified soybean oil polyol and 2, 2-dimethylol butyric acid (DMBA) for 30min at 80 ℃, then adding isophorone diisocyanate (IPDI), hexamethylene Diisocyanate (HDI) and a catalyst BICAT 8118, heating to 80 ℃ for reaction for 3h until the system viscosity is 4000 mPa.s and the NCO content is 4.74%;

(2) Cooling to 70 ℃, adding part of acetone and 1, 4-butanediol into the reaction liquid in the step (1) to ensure that the acetone accounts for 25% of non-volatile components in the system at the moment, preserving heat for 5 hours, and reacting until the viscosity of the system is 620 mPa.s and the NCO content is 1.80%;

(3) Adding allyl alcohol into the reaction liquid in the step (2), carrying out heat preservation reaction for 2 hours until the-NCO content of the system is 0, and then adding part of acetone to make the acetone account for 25% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 30 ℃, adding N-methylmorpholine, residual acetone and Irgacure-184 into the reaction liquid in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding diethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

wherein the adhesion promoter is purchased from the Yue, the leveling agent is purchased from Pick chemistry, the wetting agent is purchased from Di Gao, the thickening agent is purchased from Romen Hasi, the color paste is purchased from Guangdong Kedi, the brightening agent is purchased from the Yue, and the flavoring agent is purchased from Lihua essence.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 2 hours at the rotating speed of 400rpm to obtain the bio-based aqueous light-cured nail polish.

Example 3

wherein the polytetrahydrofuran ether glycol has a number average molecular weight of 2000, the polycarbonate glycol has a number average molecular weight of 2000, and the modified castor oil polyol has a number average molecular weight of 1000; modified castor oil polyol was purchased from Korean SK Co., and catalyst BICAT 8118 was purchased from advanced chemical company of America and Irgacure-127 was purchased from Basoff, germany.

(1) Mixing polytetrahydrofuran ether glycol, polycarbonate diol, modified castor oil polyol and 2, 2-dimethylolpropionic acid (DMPA) at 60 ℃ for 25min, then adding dicyclohexylmethane diisocyanate (HMDI), isophorone diisocyanate (IPDI) and a catalyst BICAT 8118, heating to 90 ℃ for reaction for 3h until the system viscosity is 5700 mPa.s and the NCO content is 4.24%;

(2) Cooling to 60 ℃, adding part of butanone and 3-methyl-1, 5-pentanediol into the reaction liquid in the step (1) so that the butanone accounts for 40% of non-volatile components in the system at the moment, preserving heat for 6 hours, and reacting until the viscosity of the system is 800 mPa.s and the NCO content is 1.30%;

(3) Adding hydroxyethyl methacrylate into the reaction liquid in the step (2), carrying out heat preservation reaction for 2.5h until the-NCO content of the system is 0, and then adding part of butanone to make the butanone account for 40% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 30 ℃, adding triethylamine, residual butanone and Irgacure-127 into the reaction liquid in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding tetraethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

wherein the adhesion promoter is purchased from the confidence, the leveling agent is purchased from the Pick chemistry, the wetting agent is purchased from the Crohn, the thickener is purchased from the Dow chemistry, the pearl powder is purchased from the merck, the brightening agent is purchased from the confidence, and the flavoring agent is purchased from the reward organism.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 2.5 hours at the rotating speed of 300rpm to obtain the bio-based aqueous light-cured nail polish.

Example 4

wherein the modified castor oil polyol has a number average molecular weight of 1000; modified castor oil polyol was purchased from SK, korea, catalyst BICAT 8118 from american leading chemicals company, allyl alcohol from DIC, irgacure-127 from basf, germany.

(1) Mixing modified castor oil polyol and 2, 2-dimethylolbutanoic acid (DMBA) at 70 ℃ for 10min, then adding dicyclohexylmethane diisocyanate (HMDI) and a catalyst BICAT 8118, heating to 85 ℃ for reaction for 2.5h until the system viscosity is 4300 mPa.s and the NCO content is 5.85%;

(2) Cooling to 65 ℃, adding part of butanone and methyl propylene glycol into the reaction liquid in the step (1) to ensure that the butanone accounts for 50% of non-volatile components in the system at the moment, preserving heat for 4.5 hours, and reacting until the viscosity of the system is 500 mPa.s and the NCO content is 1.78%;

(3) Adding allyl alcohol into the reaction liquid in the step (2), carrying out heat preservation reaction for 2.5 hours until the-NCO content of the system is 0, and then adding part of butanone to make the butanone account for 50% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 35 ℃, adding triethylamine, residual butanone and Irgacure-127 into the reaction liquid in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding diethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

wherein the adhesion promoter is purchased from the confidence, the leveling agent is purchased from the di-high, the wetting agent is purchased from the mai-shi, the thickener is purchased from romen hasi, the pearl powder is purchased from the merck, the brightening agent is purchased from the confidence, and the flavoring agent is purchased from the rituximab.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 1h at the rotating speed of 800rpm to obtain the bio-based aqueous light-cured nail polish.

Example 5

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wherein the polytetrahydrofuran ether glycol has a number average molecular weight of 2000 and the modified palm oil polyol has a number average molecular weight of 1000; modified palm oil polyol was purchased from Korea SK Co, catalyst BICAT 8118 from the American leading chemical company and Irgacure-184 from Basff, germany.

(1) Mixing polytetrahydrofuran ether glycol, modified palm oil polyol and 2, 2-dimethylolpropionic acid (DMPA) at 55 ℃ for 15min, then adding dicyclohexylmethane diisocyanate (HMDI), hexamethylene Diisocyanate (HDI) and a catalyst BICAT 8118, heating to 80 ℃ for reaction for 2h until the system viscosity is 3600 mPa.s and the NCO content is 4.27%;

(2) Cooling to 65 ℃, adding part of acetone and neopentyl glycol into the reaction liquid in the step (1) to ensure that the acetone accounts for 60 percent of non-volatile components in the system at the moment, preserving heat for 5 hours, and reacting until the viscosity of the system is 580 mPa.s and the NCO content is 1.75 percent;

(3) Adding hydroxyethyl methacrylate into the reaction liquid in the step (2), carrying out heat preservation reaction for 3 hours until the-NCO content of the system is 0, and then adding part of acetone to ensure that the acetone accounts for 60% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 35 ℃, adding N-methyldiethanolamine, residual acetone and Irgacure-184 into the reaction liquid in the step (3), uniformly mixing, adding deionized water for high-speed dispersion, removing acetone for 40min under-0.1 Mpa, and adding tetraethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

wherein the adhesion promoter is purchased from the Yue, the leveling agent is purchased from Pick chemistry, the wetting agent is purchased from Di Gao, the thickening agent is purchased from Romen Hasi, the color paste is purchased from Kedi, the brightening agent is purchased from the Yue, and the flavoring agent is purchased from Lihua essence.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 3 hours at the rotating speed of 500rpm to obtain the bio-based aqueous light-cured nail polish.

Example 6

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wherein the polytetrahydrofuran ether glycol has a number average molecular weight of 2000, the polycarbonate glycol has a number average molecular weight of 2000, and the modified palm oil polyol has a number average molecular weight of 1000; modified palm oil polyol was purchased from Korea SK, catalyst BICAT 8118 from the American leading chemical company, allyl alcohol from DIC, irgacure-184 from Basff, germany.

(1) Mixing polytetrahydrofuran ether glycol, polycarbonate diol, modified palm oil polyol and 2, 2-dimethylolpropionic acid (DMPA) at 65 ℃ for 20min, then adding dicyclohexylmethane diisocyanate (HMDI), hexamethylene Diisocyanate (HDI) and a catalyst BICAT 8118, heating to 85 ℃ for reaction for 2h until the system viscosity is 5800 mPa.s and the NCO content is 4.78%;

(2) Cooling to 55 ℃, adding part of butanone, 1, 4-butanediol and ethanolamine into the reaction liquid in the step (1) so that the butanone accounts for 55% of non-volatile components in the system at the moment, preserving heat for 5.5h, and reacting until the viscosity of the system is 660 mPa.s and the NCO content is 1.52%;

(3) Adding allyl alcohol into the reaction liquid in the step (2), carrying out heat preservation reaction for 3 hours until the-NCO content of the system is 0, and then adding part of butanone to ensure that the butanone accounts for 55% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 20 ℃, adding ammonia water, residual butanone and Irgacure-184 into the reaction liquid in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding triethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

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wherein the adhesion promoter is purchased from the confidence, the leveling agent is purchased from the Pick chemistry, the wetting agent is purchased from the Michaelis chemical, the thickener is purchased from the Dow chemistry, the pearl powder is purchased from the merck, the brightening agent is purchased from the confidence, and the flavoring agent is purchased from the reward organism.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 2 hours at the rotating speed of 600rpm to obtain the bio-based aqueous light-cured nail polish.

Example 7

wherein the modified rapeseed oil polyol has a number average molecular weight of 1000; modified rapeseed oil polyol was purchased from Korea SK Co, catalyst BICAT 8118 was purchased from the American leading chemical company, irgacure-819 was purchased from Basoff, germany.

(1) Mixing modified rapeseed oil polyol and 2, 2-dimethylolbutyric acid (DMBA) at 75 ℃ for 20min, then adding dicyclohexylmethane diisocyanate (HMDI), isophorone diisocyanate (IPDI) and a catalyst BICAT 8118, heating to 85 ℃ for reaction for 3h until the system viscosity is 4000 mPa.s and the NCO content is 4.99%;

(2) Cooling to 50 ℃, adding part of butanone, methyl propylene glycol and 1, 6-hexanediol into the reaction liquid in the step (1), so that the butanone accounts for 45% of non-volatile components in the system at the moment, preserving heat for 3 hours, and reacting until the viscosity of the system is 450 mPa.s and the NCO content is 1.70%;

(3) Adding hydroxyethyl methacrylate into the reaction liquid in the step (2), carrying out heat preservation reaction for 2 hours until the-NCO content of the system is 0, and then adding part of butanone to make the butanone account for 45% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 20 ℃, adding triethylamine, residual butanone and Irgacure-819 into the reaction solution in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding diethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

wherein the adhesion promoter is purchased from the Yue, the leveling agent is purchased from Pick chemistry, the wetting agent is purchased from Crohn, the thickener is purchased from Romen Hasi, the color paste is purchased from Kedi, the brightening agent is purchased from the Yue, and the flavoring agent is purchased from Lihua essence.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 3 hours at the rotating speed of 450rpm to obtain the bio-based aqueous light-cured nail polish.

Example 8

wherein the polytetrahydrofuran ether glycol has a number average molecular weight of 2000 and the modified rapeseed oil polyol has a number average molecular weight of 1000; modified rapeseed oil polyol was purchased from Korea SK, catalyst BICAT 8118 from American leading chemical company, allyl alcohol was purchased from DIC, irgacure-184 from Basff, germany.

(1) Mixing polytetrahydrofuran ether glycol, modified rapeseed oil polyol and 2, 2-dimethylolpropionic acid (DMPA) at 60 ℃ for 15min, then adding isophorone diisocyanate (IPDI), hexamethylene Diisocyanate (HDI) and a catalyst BICAT 8118, heating to 80 ℃ to react for 3h until the system viscosity is 4600 mPa.s and the NCO content is 5.85%;

(2) Cooling to 70 ℃, adding part of acetone, methyl propylene glycol and neopentyl glycol into the reaction liquid in the step (1) so that the acetone accounts for 40% of non-volatile components in the system at the moment, preserving heat for 4 hours, and reacting until the viscosity of the system is 560 mPa.s and the NCO content is 2.38%;

(3) Adding allyl alcohol into the reaction liquid in the step (2), carrying out heat preservation reaction for 2 hours until the-NCO content of the system is 0, and then adding part of acetone to make the acetone account for 40% of non-volatile components in the system at the moment, and uniformly stirring;

(4) Cooling to 25 ℃, adding sodium hydroxide aqueous solution, residual acetone and Irgacure-184 into the reaction liquid in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding triethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

wherein the adhesion promoter is purchased from the Yue, the leveling agent is purchased from Di Gao, the wetting agent is purchased from Mai Cao, the thickener is purchased from Roman Hasi, the color paste is purchased from Suzhou world name, the brightening agent is purchased from Yue, and the flavoring agent is purchased from Lihua essence.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 2.5 hours at the rotating speed of 400rpm to obtain the bio-based aqueous light-cured nail polish.

Example 9

wherein the polytetrahydrofuran ether glycol has a number average molecular weight of 2000, the polycarbonate glycol has a number average molecular weight of 2000, and the modified soybean oil polyol has a number average molecular weight of 1000; modified soybean oil polyol was purchased from Korea SK Co., and catalyst BICAT 8118 was purchased from the American leading chemical company, allyl alcohol was purchased from DIC Co., and Irgacure-819 was purchased from Basoff Germany.

(1) Mixing polytetrahydrofuran ether glycol, polycarbonate diol, modified soybean oil polyol and 2, 2-dimethylolpropionic acid (DMPA) at 70 ℃ for 25min, then adding dicyclohexylmethane diisocyanate (HMDI), hexamethylene Diisocyanate (HDI) and a catalyst BICAT 8118, heating to 90 ℃ for reaction for 2h until the system viscosity is 6300 mPa.s and the NCO content is 5.35%;

(2) Cooling to 60 ℃, adding part of acetone and 1, 6-hexanediol into the reaction liquid in the step (1), so that the acetone accounts for 50% of non-volatile components in the system at the moment, preserving heat for 5 hours, and reacting until the viscosity of the system is 820 mPa.s and the NCO content is 2.08%;

(3) Adding allyl alcohol into the reaction liquid in the step (2), carrying out heat preservation reaction for 2.5 hours until the-NCO content of the system is 0, and then adding part of acetone to make the acetone account for 50% of non-volatile components in the system, and uniformly stirring;

(4) Cooling to 25 ℃, adding triethylamine, residual acetone and Irgacure-819 into the reaction solution in the step (3), uniformly mixing, then adding deionized water for high-speed dispersion, then removing acetone for 40min under-0.1 Mpa, and then adding triethylene glycol diacrylate to obtain the bio-based aqueous polyurethane emulsion.

wherein the adhesion promoter is purchased from the confidence, the leveling agent and the wetting agent are purchased from the Pick chemistry, the thickener is purchased from the Dow chemistry, the color paste is purchased from the Kedi, the brightening agent is purchased from the confidence, and the flavoring agent is purchased from the reward organism.

stirring the bio-based aqueous polyurethane emulsion and the auxiliary agent for 3 hours at the rotating speed of 300rpm to obtain the bio-based aqueous light-cured nail polish.

Comparative example 1

This comparative example differs from example 1 only in that the bio-based aqueous polyurethane emulsion was replaced with a commercially available conventional aqueous top layer resin (available from Huafeng corporation under the trade designation JF-PDY877 HY).

Comparative example 2

This comparative example differs from example 1 only in that the adhesion promoters KBM-1003 and KBM-602 are not included in the adjuvant.

Comparative example 3

This comparative example differs from example 1 only in that the bio-based aqueous polyurethane emulsion was replaced with a commercially available conventional aqueous top layer resin (available from Huafeng corporation under the trade designation JF-PDY877 HY), and that the adhesion promoters KBM-1003 and KBM-602 were not included in the adjuvant.

The performance test was performed on the bio-based aqueous photo-curable nail polish of examples 1-9 and comparative examples 1-3 as follows:

(1) Abrasion resistance test: the nail polish was coated on ABS plastic (thickness of about 1 mm) with a brush, and after irradiation with 36W uv light for 10min, the nail polish was scraped 10 times with ABS plastic, observed for damage, and scored. No scratch was noted at 10 points, slight scratch was noted at 9-7 points, obvious scratch was noted at 6-4 points, broken was noted at 3-1 points, and complete scratch was noted at 0 points.

(2) And (3) water resistance test: the nail polish was coated on ABS plastic (thickness of about 1 mm) with a brush, irradiated with 36W uv light for 10min, immersed in water for 2 hours, taken out to see if the nail polish became soft and sticky and skinned, and scored. The flatness was recorded as 10 minutes without change, the slight softening was recorded as 9-7 minutes, the obvious wrinkling was recorded as 6-4 minutes, the skinning was recorded as 3-1 minutes, and the complete skinning and stickiness was recorded as 0 minutes.

(3) Peel strength test: the nail polish was coated on ABS plastic (thickness about 1 mm) with a brush, and after irradiation with 36W uv light for 10min, a tensile test was performed on an shimadzu electronic universal tester (model: AGS-X-10 kN).

(4) Transparency test: the nail polish was applied to glass (thickness: about 1 mm) with a brush, and after irradiation with 36W of ultraviolet light for 10 minutes, the film adhesive was removed from the glass and placed into a color spectrum haze meter (model: TH-100) for testing.

The results of the performance test are shown in Table 1.

TABLE 1

As can be seen from Table 1, the bio-based aqueous photocurable nail polish prepared in examples 1-9 of the present invention has strong abrasion resistance (7-9 minutes) and water resistance (8-9 minutes), high peel strength (5.9-9.4 kgf/3 cm) and transparency (52-85%).

Compared with comparative example 1, the bio-based aqueous light-cured nail polish prepared in example 1 has improved wear resistance, water resistance, peel strength and transparency, which indicates that the use of the bio-based aqueous polyurethane emulsion as a main component of the nail polish can significantly improve the use properties of the nail polish, including the wear resistance, water resistance and fastness of bonding with nails of the nail polish.

Compared with comparative example 2, the peel strength of the bio-based aqueous light-cured nail polish prepared in example 1 was significantly improved, indicating that the use of the adhesion promoter can effectively improve the bond firmness between the nail polish and the nail.

Compared with comparative example 3, the wear resistance, water resistance, peel strength and transparency of the bio-based aqueous light-cured nail polish prepared in example 1 are all remarkably improved, which shows that the bio-based aqueous polyurethane emulsion is used as the main component of the nail polish, and meanwhile, various service performances of the prepared aqueous nail polish are all remarkably improved by combining with the adhesion promoter.

The applicant states that the present invention is illustrated by the above examples of bio-based aqueous light curable nail polish and method of making the same, but the present invention is not limited to, i.e. it is not meant that the present invention must be practiced in reliance on, the above examples. It should be apparent to those skilled in the art that any modification of the present invention, equivalent substitution of raw materials for the product of the present invention, addition of auxiliary components, selection of specific modes, etc., falls within the scope of the present invention and the scope of disclosure.

Claims

1. A bio-based aqueous light curable nail polish, characterized in that the bio-based aqueous light curable nail polish comprises a bio-based aqueous polyurethane emulsion and an auxiliary agent; the preparation raw materials of the bio-based aqueous polyurethane emulsion comprise the following components in percentage by weight:

The total weight of the polyester polyol or polyether polyol and the bio-based polyol is 10-30% of the total weight of the emulsion;

the bio-based polyol accounts for 30-100% of the total weight of the polyol;

the ratio of the total weight of the diisocyanate to the total weight of the polyester polyol or polyether polyol and the bio-based polyol is 0.3:1 to 0.8:1;

the ratio of the total weight of the bio-based polyol to the total weight of the diisocyanate is 0.5:1-2:1;

the end capping agent is allyl alcohol;

the acrylic ester is acrylic ester containing a PEG block and has the following structure:

wherein n=an integer from 2 to 6;

the acrylic ester is selected from any one of triethylene glycol diacrylate, diethylene glycol diacrylate and tetraethylene glycol diacrylate;

the bio-based polyol is selected from any one or a combination of at least two of modified soybean oil polyol, modified castor oil polyol, modified palm oil polyol, modified jatropha oil polyol and modified rapeseed oil polyol;

the adhesion promoter is selected from vinyl silane coupling agents and amino coupling agents;

The bio-based aqueous polyurethane emulsion is prepared by the following preparation method:

(4) Cooling, adding a neutralizing agent, a residual solvent and a water-based photoinitiator into the reaction solution in the step (3), uniformly mixing, then performing water dispersion, then removing the solvent, adding acrylic ester, and uniformly stirring to obtain the bio-based water-based polyurethane emulsion _。

2. The bio-based aqueous photocurable nail polish according to claim 1, wherein the end capping agent comprises 2-8% by mass of the non-volatile components of the emulsion.

3. The bio-based aqueous light curable nail polish according to claim 1, wherein the acrylic ester comprises 1-10% by mass of the non-volatile components of the emulsion.

4. The bio-based aqueous photocurable nail polish according to claim 1, wherein the solvent is used in an amount of 100-160% of the sum of the weight of polyol, diisocyanate, chain extender, capping agent, neutralizing agent and acrylate.

5. The bio-based aqueous photocurable nail polish according to claim 1, wherein said polyester polyol or polyether polyol is selected from the group consisting of polycarbonate diol or polytetrahydrofuran ether diol.

6. The bio-based aqueous photocurable nail polish according to claim 1, wherein said polyester polyols or polyether polyols each have a number average molecular weight of 1000-2000.

7. The bio-based aqueous photocurable nail polish according to claim 1, wherein said bio-based polyol contains graft copolymerized bio-based groups.

8. The bio-based aqueous light curable nail polish according to claim 1, wherein said bio-based polyol has a number average molecular weight of 1000-2000.

9. The biobased aqueous photocurable nail polish according to claim 1, wherein said diisocyanate is selected from any one or a combination of at least two of hexamethylene diisocyanate, isophorone diisocyanate or dicyclohexylmethane diisocyanate.

10. The bio-based aqueous photocurable nail polish according to claim 1, wherein said catalyst is selected from the group consisting of complex metal catalysts.

11. The bio-based aqueous photocurable nail polish of claim 10, wherein said catalyst is BICAT 8118.

12. The bio-based aqueous photocurable nail polish according to claim 1, wherein said hydrophilic chain extender containing carboxyl or sulfonic acid groups is selected from any one of 2, 2-dimethylolpropionic acid, 2-dimethylolbutyric acid or sodium ethylenediamine ethanesulfonate.

13. The bio-based aqueous light curable nail polish according to claim 1, wherein the alcohol chain extender is selected from any one or a combination of at least two of ethylene glycol, propylene glycol, butylene glycol, methyl propylene glycol, neopentyl glycol, hexylene glycol, 3-methyl-1, 5-pentanediol or ethanolamine.

14. The bio-based aqueous light curable nail polish according to claim 1, wherein the neutralizing agent is selected from any one or a combination of at least two of triethylamine, ammonia water, N-methylmorpholine, N-ethylmorpholine, N-methyldiethanolamine or sodium hydroxide.

15. The bio-based aqueous photocurable nail polish according to claim 1, wherein the solvent is selected from acetone and/or butanone.

16. The biobased aqueous photocurable nail polish according to claim 1, wherein said aqueous photoinitiator is selected from any one or a combination of at least two of Irgacure-184, irgacure-819, irgacure-127, irgacure-1173 or Irgacure-907.

17. The bio-based aqueous photocurable nail polish according to claim 1, wherein the temperature of said mixing of step (1) is 50-80 ℃.

18. The bio-based aqueous light curable nail polish according to claim 1, wherein the mixing time of step (1) is 10-30min.

19. The bio-based aqueous photocurable nail polish according to claim 1, wherein said elevated temperature of step (1) is elevated to 80-90 ℃.

20. The bio-based aqueous light curable nail polish according to claim 1, wherein the time of the reaction of step (1) is 2-3 hours.

21. The biobased aqueous photocurable nail polish according to claim 1, wherein the viscosity of the system is controlled to 3000-10000 mPa-s at the end of the reaction in step (1), and the NCO content is 4-6.5%.

22. The bio-based aqueous photo-curable nail polish according to claim 1, wherein the temperature reduction in step (2) is to 50-70 ℃.

23. The bio-based aqueous photocurable nail polish of claim 1, wherein said portion of solvent of step (2) is such that the solvent is present at 25-60% of the non-volatile components of the system.

24. The biobased aqueous photocurable nail polish according to claim 1, wherein said incubation in step (2) is for 2-6 hours.

25. The biobased aqueous photocurable nail polish according to claim 1, wherein the viscosity of the system is controlled to be 400-1000 mPa-s at the end of the reaction in step (2) and the NCO content is 1.5-2.5%.

26. The biobased aqueous photocurable nail polish according to claim 1, wherein said incubation in step (3) is for 2-3 hours.

27. The biobased aqueous photocurable nail polish according to claim 1, wherein the system has an-NCO content of 0 prior to addition of part of the solvent in step (3).

28. The bio-based aqueous photocurable nail polish of claim 1, wherein said portion of solvent of step (3) is such that at this point the solvent comprises 25-60% of the non-volatile components of the system.

29. The bio-based aqueous photocurable nail polish of claim 1, wherein said cooling of step (4) is to below 40 ℃.

30. The bio-based aqueous photocurable nail polish of claim 1, wherein said water dispersion of step (4) is a dispersion with deionized water.

31. The bio-based aqueous photocurable nail polish according to claim 1, wherein said desolventizing of step (4) is performed at-0.1 Mpa.

32. The bio-based aqueous photocurable nail polish according to claim 1, wherein said vinylsilane coupling agent is selected from KBM-1003 and/or KBE-1003.

33. The bio-based aqueous photocurable nail polish according to claim 1, wherein said amino coupling agent is selected from any one or a combination of at least two of KBM-602, KBM-603 or KBE-603.

34. The biobased aqueous photocurable nail polish according to claim 1, wherein said leveling agent is a water-soluble leveling agent.

35. The bio-based aqueous photocurable nail polish of claim 34, wherein said leveling agent is any one or a combination of at least two of BYK-333, BYK-307, or dygao 450.

36. The bio-based aqueous light curable nail polish according to claim 1, wherein the wetting agent is selected from any one or a combination of at least two of BYK-346, clahn LCN407, diltiazem 4100 or michaux L77.

37. The bio-based aqueous light curable nail polish according to claim 1, wherein the thickener is selected from any one or a combination of at least two of HEUR based thickeners, cellulose ether based thickeners, bentonite or acrylic based thickeners.

38. The bio-based aqueous photocurable nail polish of claim 37, whereinThe acrylic thickener is selected from the group consisting of

ASE-60 and/or TT-935.

39. The bio-based aqueous photocurable nail polish according to claim 1, wherein said pearlescent and/or color paste is selected from the group consisting of pearlescent powders and/or water-soluble color pastes.

40. The bio-based aqueous light curable nail polish of claim 39, wherein said pearlescent powder is selected from the group consisting of

Starlight Blue、/>

Staright Red or +.>

Any one or a combination of at least two of the groups of Precious Gold.

41. The bio-based aqueous light curable nail polish of claim 39, wherein said water soluble color paste is selected from SM-9815 and/or R4171.

42. The bio-based aqueous light curable nail polish according to claim 1, wherein the brightening agent is selected from any one or a combination of at least two of water soluble silicone oils.

43. The bio-based aqueous light curable nail polish of claim 42, wherein the brightening agent is KF96-100CS and/or PMX200-100.

44. The bio-based aqueous light curable nail polish according to claim 1, wherein the fragrance is selected from water soluble fragrances.

45. The bio-based aqueous light curable nail polish of claim 44, wherein the fragrance is TCW2890404 and/or CQ-RGJ-001.

46. The method of preparing a bio-based aqueous light curable nail polish according to any one of claims 1 to 45, wherein the method of preparing comprises the steps of:

47. The process of claim 46 wherein the rotational speed of the stirring is 300-800rpm.

48. The method of claim 46, wherein the stirring is for a period of 1 to 3 hours.