CN117180139A - Nail polish gel composition and preparation method thereof - Google Patents
Nail polish gel composition and preparation method thereof Download PDFInfo
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- CN117180139A CN117180139A CN202311176997.1A CN202311176997A CN117180139A CN 117180139 A CN117180139 A CN 117180139A CN 202311176997 A CN202311176997 A CN 202311176997A CN 117180139 A CN117180139 A CN 117180139A
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Abstract
The invention discloses a nail polish gel composition and a preparation method thereof. The nail polish gel composition comprises the following raw materials in parts by mass: 5-50 parts of polyurethane acrylate resin, 10-70 parts of isocyanate acrylate oligomer, 10-30 parts of allophanate acrylate resin and 2-8 parts of photoinitiator. The nail polish composition is fast in solidification, low in heat release and smell, and capable of improving nail-beautifying experience of people; the nail polish composition has good adhesive force and flexibility, and can improve the working efficiency and the integral nail-beautifying effect during nail-beautifying.
Description
Technical Field
The invention relates to an adhesive, in particular to a nail polish composition and a preparation method thereof.
Background
Nail polish, also known as nail polish, has found wide application in recent years as the scale of nail polish market increases. Compared with common nail polish, the nail polish has the characteristics of environmental protection, no toxicity, health and safety, has the common advantages of both the nail polish and the glue, is full and transparent in color, convenient to paint and longer in gloss retention, and meanwhile, the nail polish is faster to dry and higher in efficiency, and can be dried in one or two minutes, so that the nail polish gradually replaces the nail polish.
The nail polish generally belongs to the application mode in the field of UV curing, and the photo-curing component starts to undergo rapid polymerization reaction after absorbing UV illumination and emits heat, so that customers can feel painful when the heat is emitted too much when the reaction is extremely severe and the heat is short. The nail polish adhesive on the market generally has the defects of large heat release amount, high heat release temperature, poor adhesive force, low hardness, insufficient wear resistance and the like during curing.
Patent CN115778851a discloses a nail polish which comprises the following components in percentage by mass: 40-50% of photo-curing resin, 8-15% of bisphenol A glycerol dimethacrylate, 0.5-3% of vinyl silane coupling agent, 1-5% of fumed silica, 20-30% of reactive diluent, 3-10% of photoinitiator and 8-15% of color paste. The patent only solves the defect of mechanical property of the nail polish gel, but does not solve the problem of large heat release during curing, and the formula of the nail polish gel is added with high-content reactive diluent, so that the nail polish gel can generate pungent smell and harm the health of a human body during use.
Patent CN1118755a discloses a primer of nail polish, which aims to solve the problems of poor adhesive force and low flexibility of an adhesive film formed by the prior primer of nail polish, and the formula contains 15-25 parts of hydroxy acrylic ester, 20-30 parts of anhydride, and the catalyst contains amine, so that the catalyst inevitably generates pungent odor.
Disclosure of Invention
In order to solve the technical problems, the invention provides a nail polish composition and a preparation method thereof. The nail polish composition is fast in solidification, low in heat release and smell, and capable of improving nail-beautifying experience of people; the nail polish composition has good adhesive force and flexibility, and can improve the working efficiency and the integral nail-beautifying effect during nail-beautifying.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the nail polish gel composition comprises the following raw materials in parts by mass:
5-50 parts of polyurethane acrylic resin,
10-70 parts of isocyanate acrylate oligomer,
10-30 parts of allophanate acrylate resin,
2-8 parts of photoinitiator.
As a preferred embodiment of the present invention, the urethane acrylate resin has a molecular weight of 2000 to 8000g/mol, preferably 4000 to 8000g/mol, and a functionality of 2 to 3, preferably 2.5 to 3.
As a preferred technical scheme of the invention, the polyurethane acrylic resin is obtained by reacting polymer polyol with isocyanate ethyl acrylate, wherein the molecular weight of the polymer polyol is 2000-8000g/mol, preferably 4000-8000g/mol, and the functionality is 2-3, preferably 2.5-3;
preferably, the polymer polyol is a polyether polyol and/or a polyester polyol; more preferably, the polyether polyol is one or more of polyethylene glycol, polypropylene glycol and polytetramethylene ether glycol, and the polyester polyol is one or more of poly adipic acid-1, 4-butanediol ester glycol and polycaprolactone polyol;
preferably, the isocyanate ethyl acrylate is used in an amount of 1 (0.95-1.05) based on the molar ratio of NCO groups to OH groups;
preferably, the reaction of the polymer polyol with the isocyanate ethyl acrylate is carried out in the presence of an organotin-based catalyst; more preferably, the amount of the organotin catalyst is 0.01 to 0.2 percent of the total mass of diisocyanate and hydroxyacrylate A;
preferably, the reaction temperature of the polymer polyol with the isocyanate ethyl acrylate is 60-75 ℃.
As a preferred embodiment of the present invention, the isocyanate acrylate oligomer has a molecular weight of 200 to 1000g/mol.
As a preferable technical scheme of the invention, the isocyanate acrylate oligomer is an oligomer prepared by completely reacting diisocyanate and hydroxyacrylate A;
preferably, the diisocyanate is one or more of pentamethylene diisocyanate PDI, 2, 4-trimethylhexamethylene diisocyanate TMDI, cyclohexane-1, 4-diisocyanate CHDI and isophorone diisocyanate IPDI;
preferably, the hydroxy acrylic ester A is one or more of hydroxyethyl methacrylate HEMA, hydroxyethyl acrylate HEA, hydroxypropyl acrylate HPA and pentaerythritol triacrylate PETA;
preferably, the diisocyanate and the hydroxyacrylate A are used in an amount of 1 (0.95-1.05) in terms of the molar ratio of NCO groups to OH groups;
preferably, the reaction of the diisocyanate and the hydroxyacrylate a is carried out in the presence of an organotin-based catalyst; more preferably, the amount of the organotin catalyst is 0.01 to 0.2 percent of the total mass of diisocyanate and hydroxyacrylate A;
preferably, the reaction conditions of the diisocyanate and the hydroxyacrylate a are: the reaction temperature is 60-75 ℃.
As a preferred embodiment of the present invention, the allophanate acrylate resin has a viscosity of 100 to 500 mPas and a functionality of 2 to 3, preferably 2 to 2.5.
As a preferable technical scheme of the invention, the allophanate acrylate resin is prepared by reacting polyisocyanate and hydroxy acrylate B;
preferably, the polyisocyanate is one or more of Tolonate X FLO 100, TLA-100, desmodur XP-2860;
preferably, the hydroxy acrylic ester B is one or more of hydroxyethyl methacrylate HEMA, hydroxyethyl acrylate HEA, hydroxypropyl acrylate HPA and pentaerythritol triacrylate PETA;
preferably, the polyisocyanate and the hydroxyacrylate B are used in a molar ratio of NCO groups to OH groups of 1 (0.95-1.05);
preferably, the reaction of the polyisocyanate and the hydroxyacrylate B is carried out in the presence of an organotin-based catalyst; more preferably, the amount of the organotin catalyst is 0.01 to 0.2 percent of the total mass of the polyisocyanate and the hydroxy acrylic ester B;
preferably, the reaction conditions of the polyisocyanate and the hydroxyacrylate B are: the reaction temperature is 60-75 ℃.
In the invention, the organotin catalyst is selected from one or more of dibutyltin dilaurate, stannous octoate, dioctyltin oxide and dibutyltin oxide, and more preferably one or two of dibutyltin dilaurate and stannous octoate;
as a preferred technical scheme of the invention, the photoinitiator is preferably one or more of 2-hydroxy-2-methyl-1-phenyl-1-acetone UV-1173 and 1-hydroxycyclohexyl phenyl ketone UV-184 and 2,4, 6-trimethylbenzoyl diphenyl oxygen phosphorus TPO.
As a preferred embodiment of the present invention, the nail polish composition further comprises optionally a reactive diluent;
the reactive diluent is a monofunctional reactive diluent, preferably one or more of hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate and isobornyl acrylate.
If a reactive diluent is used, the addition amount of the reactive diluent in the nail polish composition is not more than 20 parts, which is recommended based on the requirements of environmental protection and product thinning.
The nail polish composition provided by the invention uses polyurethane acrylate resin, isocyanate acrylate oligomer and allophanate acrylate resin as matrix resin, has the advantage of low viscosity, can reduce or completely avoid the use of reactive diluents, and is environment-friendly and safe.
The nail polish composition is applied to nail polish base adhesive, and has the advantages of rapid curing, small heat release, high adhesive force, good flexibility and permeability.
A process for preparing a nail polish composition as described hereinbefore comprising the steps of: and uniformly mixing polyurethane acrylate resin, isocyanate acrylate oligomer, allophanate acrylate resin and a photoinitiator to obtain the nail polish gel composition.
The formula can synergistically reduce the adhesiveness of the nail polish, can meet the use requirement under the condition of not adding the reactive diluent, and has the advantages of low smell and low heat release compared with the similar products added with the reactive diluent in the market; the polyurethane acrylic ester can provide better flexibility and adhesive force for the nail polish, the isocyanate acrylic ester oligomer can greatly improve the pencil hardness of the product, meanwhile, the functionality is not high, the adhesive force is not obviously reduced due to too large curing shrinkage, and the heat release irritation is relatively small; the allophanate acrylate resin has good flexibility and low viscosity, and the synergistic combination of the allophanate acrylate resin and the allophanate acrylate resin ensures the integral mechanical property and the use safety of the nail polish composition.
Detailed Description
The invention will now be further illustrated by means of specific examples which are given solely by way of illustration of the invention and do not limit the scope thereof.
The main raw material information in the invention is as follows:
polyethylene glycol PEG-2000, molecular weight 2000g/mol, functionality 2, from Wanhua chemistry;
polypropylene glycol F3128, molecular weight 3000g/mol, functionality 3, from vancomic chemistry;
polypropylene glycol C2080, molecular weight 8000g/mol, functionality 2, from Wanhua chemistry;
polyester polyol PBA-2000, molecular weight 2000g/mol, functionality 2, from Wanhua chemistry;
isocyanate ethyl acrylate, available from aladine;
pentamethylene diisocyanate, PDI, from the chemistry of vancom;
cyclohexane-1, 4-diisocyanate, CHDI, available from north Xin Hongli;
2, 4-trimethylhexamethylene diisocyanate, TMDI, commercially available from Zhan Xin;
isophorone diisocyanate, IPDI, from vancomic chemistry;
hydroxyethyl acrylate, HEA, available from aladine;
hydroxyethyl methacrylate, HEMA, from vancomic chemistry;
hydroxypropyl acrylate, HPA, purchased from aladine;
pentaerythritol triacrylate, PETA, available from aladine;
polyisocyanate Tolonate X FLO 100, available from Kang Rui;
polyisocyanate TLA-100, available from Asahi chemical;
polyisocyanate Desmodur XP-2860, available from Korsche;
photoinitiators UV-1173, UV-184, TPO, all from Alatidine.
Other starting materials were purchased from common commercial sources unless specified otherwise.
The main test method adopted by the invention is as follows:
(1) Pencil hardness: the test is carried out according to the national standard GB 6739-86 pencil hardness method for coating hardness.
(2) Adhesion force: the adhesion was tested according to the national standard GB/T9286-1998.
(3) Flexibility: the paint film was tested according to national standard GB/T1731-1993 for its smallest diameter about the axis of the axial rod tester, the smaller the diameter of the corresponding axis, which does not break, the greater the ability of the paint film to flex, and the better the flexibility.
(4) Exothermic temperature: the plastic nail polish sheet is coated with a UV nail polish composition with the thickness of 1mm, a thermocouple of a paperless recorder is fixed between the nail polish sheet and the composition, UV light curing (under the power of 36 watts of baking lamp) is carried out, the paperless recorder records the temperature of the whole curing process, and the maximum instantaneous temperature is taken as the exothermic temperature.
(5) Odor size: after the material was cured, the odor grade was identified by smell at 30cm above the material and classified into three categories A, B, C by higher and higher odor, i.e., a indicated the lowest odor.
(6) Viscosity: the test was carried out according to the national standard GB/T265-1988.
[ preparation example ]
(1) Preparation of polyurethane acrylate resin:
different urethane acrylate resins, designated A1, A2, A3, A4, were prepared according to the raw material compositions and amounts in table 1. The specific method comprises the following steps: adding polymer polyol into a four-neck flask, adding isocyanate ethyl acrylate according to the molar ratio of-NCO to-OH of R1, adding an organotin catalyst T-12 accounting for 100ppm of the total weight of the raw materials, continuously stirring, reacting at 65 ℃, and monitoring the reaction condition by an NCO titration method in the reaction process until the NCO content in the system is less than 0.5wt%.
(2) Preparation of isocyanate acrylate oligomers
Different isocyanate acrylate oligomers were prepared according to the raw material composition and amounts in table 1, denoted B1, B2, B3, B4, respectively. The specific method comprises the following steps: adding diisocyanate into a four-neck flask, adding hydroxy acrylic ester A according to the molar ratio of-NCO to-OH of R2, stirring and reacting for 1h at 65 ℃, and monitoring the reaction condition by an NCO titration method until the NCO content in the system is less than 0.5wt%.
(3) Preparation of allophanate acrylate resins
Different allophanate acrylate resins, designated C1, C2, C3, were prepared according to the raw material compositions and amounts in Table 1. The specific method comprises the following steps: adding polyisocyanate into a four-neck flask, adding hydroxy acrylic ester B according to the molar ratio of-NCO to-OH of R3, and reacting at 65 ℃ until the NCO content in the system is less than 0.5wt%.
TABLE 1 raw material composition and amounts in preparation examples
Examples 1 to 8 and comparative examples 1 to 3
According to the raw material composition and the mass parts in the table 2, different nail polish compositions are prepared, and the specific preparation method is as follows:
uniformly mixing polyurethane acrylate resin, isocyanate acrylate oligomer, allophanate acrylate resin and photoinitiator to obtain the nail polish gel composition.
Table 2 formulation of different nail polish compositions
The performance test in table 3 was performed on each nail polish composition and the results were as follows:
TABLE 3 Performance test results
| viscosity/mPa.s | Hardness of pencil | Flexibility of the product | Adhesion force | Exothermic temperature | Odor rating scoring | |
| Example 1 | 5000 | 3H | 2mm | Level 0 | 40℃ | A |
| Example 2 | 7500 | 3H | 2mm | Level 0 | 42℃ | A |
| Example 3 | 8200 | 2H | 2mm | Level 0 | 45℃ | A |
| Example 4 | 9100 | 2H | 2mm | Level 0 | 40℃ | A |
| Example 5 | 8300 | 2H | 2mm | Level 0 | 43℃ | A |
| Example 6 | 5600 | 2H | 2mm | Level 0 | 43℃ | A |
| Example 7 | 6300 | 2H | 2mm | Level 0 | 43℃ | A |
| Example 8 | 5200 | 3H | 2mm | Level 0 | 45℃ | A |
| Comparative example 1 | 8500 | 2B | 2mm | Level 1 | 52℃ | C |
| Comparative example 2 | 9500 | H | 3mm | Level 1 | 49℃ | A |
| Comparative example 3 | 3500 | H | 3mm | Level 2 | 48℃ | A |
As can be seen from the test results in Table 3, the nail polish composition provided by the embodiment of the invention has excellent flexibility, adhesive force and hardness, low heat release temperature, low smell and other comprehensive properties through the synergistic formulation design of matrix resin.
Comparative example 1 requires the addition of a reactive diluent to achieve the proper operating viscosity, resulting in a significant increase in exotherm; and the hardness and adhesion of the composition after curing are significantly reduced compared with those of example 2 without isocyanate acrylate oligomer, and scratch and chipping may occur easily in the nail art. Comparative example 2 and comparative example 3 have a greater effect on the flexibility and adhesion after curing of the composition and lack of heat transfer and an increase in the exotherm temperature than example 2 without the addition of allophanate acrylate resin and urethane acrylate resin, respectively.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and additions may be made to those skilled in the art without departing from the method of the present invention, which modifications and additions are also to be considered as within the scope of the present invention.
Claims (10)
1. The nail polish gel composition is characterized by comprising the following raw materials in parts by mass:
5-50 parts of polyurethane acrylic resin,
10-70 parts of isocyanate acrylate oligomer,
10-30 parts of allophanate acrylate resin,
2-8 parts of photoinitiator.
2. Nail polish composition according to claim 1, characterized in that the urethane acrylate resin has a molecular weight of 2000-8000g/mol, preferably 4000-8000g/mol and a functionality of 2-3, preferably 2.5-3.
3. Nail polish composition according to claim 1 or 2, characterized in that the urethane acrylate resin is obtained by reacting a polymer polyol with an isocyanate ethyl acrylate, the polymer polyol having a molecular weight of 2000-8000g/mol, preferably 4000-8000g/mol, and a functionality of 2-3, preferably 2.5-3;
preferably, the polymer polyol is a polyether polyol and/or a polyester polyol; more preferably, the polyether polyol is one or more of polyethylene glycol, polypropylene glycol and polytetramethylene ether glycol, and the polyester polyol is one or more of poly adipic acid-1, 4-butanediol ester glycol and polycaprolactone polyol;
preferably, the isocyanate ethyl acrylate is used in an amount of 1 (0.95-1.05) based on the molar ratio of NCO groups to OH groups;
preferably, the reaction of the polymer polyol with the isocyanate ethyl acrylate is carried out in the presence of an organotin-based catalyst; more preferably, the amount of the organotin catalyst is 0.01 to 0.2 percent of the total mass of diisocyanate and hydroxyacrylate A;
preferably, the reaction temperature of the polymer polyol with the isocyanate ethyl acrylate is 60-75 ℃.
4. Nail polish composition according to claim 1, characterized in that the isocyanate acrylate oligomer has a molecular weight of 200-1000g/mol.
5. The nail polish composition according to claim 1 or 4, wherein the isocyanate acrylate oligomer is an oligomer obtained by completely reacting a diisocyanate and a hydroxyacrylate a;
preferably, the diisocyanate is one or more of pentamethylene diisocyanate, 2, 4-trimethylhexamethylene diisocyanate, cyclohexane-1, 4-diisocyanate and isophorone diisocyanate;
preferably, the hydroxy acrylic ester A is one or more of hydroxy ethyl methacrylate, hydroxy ethyl acrylate, hydroxy propyl acrylate and pentaerythritol triacrylate;
preferably, the diisocyanate and the hydroxyacrylate A are used in an amount of 1 (0.95-1.05) in terms of the molar ratio of NCO groups to OH groups;
preferably, the reaction of the diisocyanate and the hydroxyacrylate a is carried out in the presence of an organotin-based catalyst; more preferably, the amount of the organotin catalyst is 0.01 to 0.2 percent of the total mass of diisocyanate and hydroxyacrylate A;
preferably, the reaction temperature of the diisocyanate and the hydroxyacrylate A is 60-75 ℃.
6. Nail polish composition according to claim 1, characterized in that the allophanate acrylate resin has a viscosity of 100-500 mPa-s and a functionality of 2-3, preferably 2-2.5.
7. Nail polish composition according to claim 1 or 6, characterized in that the allophanate acrylate resin is obtained by reacting a polyisocyanate and a hydroxyacrylate B;
preferably, the polyisocyanate is one or more of Tolonate X FLO 100, TLA-100, desmodur XP-2860;
preferably, the hydroxy acrylic ester B is one or more of hydroxy ethyl methacrylate, hydroxy ethyl acrylate, hydroxy propyl acrylate and pentaerythritol triacrylate;
preferably, the polyisocyanate and the hydroxyacrylate B are used in a molar ratio of NCO groups to OH groups of 1 (0.95-1.05);
preferably, the reaction of the polyisocyanate and the hydroxyacrylate B is carried out in the presence of an organotin-based catalyst; more preferably, the amount of the organotin catalyst is 0.01 to 0.2 percent of the total mass of the polyisocyanate and the hydroxy acrylic ester B;
preferably, the reaction temperature of the polyisocyanate and the hydroxyacrylate B is 60-75 ℃.
8. Nail polish composition according to any one of claims 1 to 7, characterized in that the photoinitiator radical initiator is preferably one or more of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 1-hydroxycyclohexylphenyl ketone, 2,4, 6-trimethylbenzoyl diphenyloxide phosphorus.
9. Nail polish composition according to any one of claims 1 to 8, characterized in that it further comprises optionally a reactive diluent;
the reactive diluent is a monofunctional reactive diluent, preferably one or more of hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate and isobornyl acrylate.
10. A process for preparing a nail polish composition according to any one of claims 1 to 9, comprising the steps of: and uniformly mixing polyurethane acrylate resin, isocyanate acrylate oligomer, allophanate acrylate resin and a photoinitiator to obtain the nail polish gel composition.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118986790A (en) * | 2024-08-07 | 2024-11-22 | 东莞市百拓实业有限公司 | Tri-nail-free oil-glue color glue composition and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118986790A (en) * | 2024-08-07 | 2024-11-22 | 东莞市百拓实业有限公司 | Tri-nail-free oil-glue color glue composition and preparation method thereof |
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