CN104130693A - Nanometer self-healing paint and preparation method thereof - Google Patents
Nanometer self-healing paint and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a nanometer self-healing paint and a preparation method thereof, and belongs to the technical field of paint application. The invention solves the problems of weak scratch resistance and failure in self-healing of the wood lacquer surface in the prior art. The nanometer self-healing paint is composed of a component A and a component B. the component A consists of the following raw materials by weight: synthetic fatty acid resin / acrylic resin or polyaspartate polyurea, straight chain polyester resin containing hydroxyl, nanometer silicon dioxide, a dispersing agent, a defoaming agent, a leveling agent, a drying agent and a solvent; and the component B consists of the following raw materials by weight: hexamethylene diisocyanate, and acetic acid butyl ester; the component A and the component B are in the weight ratio of 1:0.8 to 1.2. The self-healing paint of the invention is not only environment-friendly but also has self-healing effect after scratching.
Description
Technical field
The invention belongs to application of paints technical field, be specifically related to a kind of nanometer self-healing paint and preparation method thereof.
Background technology
Much for the coating of furniture, woodenware, car surface, all there is in the market the effect of protection, attractive, decorative; wood lacquer, furniture lacquer field its generally containing free TDI; and film and scratch that can not self-healing to protect light tint retention poor; at automotive field, filming can not self-healing after scratching, and cannot meet people's demand.
Summary of the invention
The object of the present invention is to provide a kind of nanometer self-healing paint and preparation method thereof, solve woodwork coating, the poor smell weight of car paint metal/non-metal paint feature of environmental protection in construction process in prior art, after construction, to protect the poor fullness ratio of light tint retention inadequate for paint film,, problem that can not self-healing after scuffing.
To achieve these goals, technical scheme of the present invention is as follows:
Nanometer self-healing paint, it is comprised of component A and B component, and described component A is comprised of the raw material of following weight percent:
In synthetic fat acid resin, acrylic resin, Polyaspartic Polyurea one or more 13%～50%
Straight chain hydroxyl group containing polyester resin (soft linear polyester resin) 10%～45%
Nano silicon 0.01%～2%
Dispersion agent 0.05%～0.1%
Defoamer 0.01%～0.8%
Flow agent 0.01%～1%
Siccative 0.01%～1%
Solvent 10%～65%;
Described B component is comprised of the raw material of following weight percent:
Hexamethylene diisocyanate base polymeric polyisocyanate 20%～52%
N-butyl acetate 48%～70%;
Wherein, the weight ratio of component A and B component is 1:0.8～1.2.
Further, described component A is comprised of the raw material of following weight percent: 32% synthetic fat acid resin, 18% straight chain hydroxyl group containing polyester resin, 0.1% nano silicon, 0.1% dispersion agent, 0.1% defoamer, 0.1% flow agent, 0.3% siccative, 49.3% solvent.
Again further, described B component is comprised of the raw material of following weight percent: 48% hexamethylene diisocyanate base polymeric polyisocyanate, 52% n-butyl acetate.
In addition, described component A also comprises weight percent > 0, and≤45 pigment, weight percent > 0, and≤10 mute powder, all raw material sums of component A equal absolutely; Described B component also comprises weight percent > 0, and≤10 vinyl acetic monomer, all raw material sums of B component equal absolutely.
Wherein, described component A is comprised of the raw material of following weight percent: 30% synthetic fat acid resin, 18% straight chain hydroxyl group containing polyester resin, 0.1% nano silicon, 0.1% dispersion agent, 0.1% defoamer, 0.1% flow agent, 0.3% siccative, 3% pigment, 1% mute powder, 47.3% solvent; Described B component is comprised of the raw material of following weight percent: 46% hexamethylene diisocyanate base polymeric polyisocyanate, 50% n-butyl acetate, 4% vinyl acetic monomer.
The preparation method of nanometer self-healing paint, comprises the following steps:
The preparation of component A:
(1) the synthetic fat acid resin/acrylic resin that is 13%～50% by weight percent or Polyaspartic Polyurea, 10%～45% straight chain hydroxyl group containing polyester resin join in agitator and stir;
(2), under low rotation speed condition, adding weight percent is the defoamer of 0.01%～2% nano silicon, 0.05%～1% dispersion agent, 0.01%～～0.8%;
(3) after high speed dispersion 5～30min, stirring at low speed adds 0.01%～1% flow agent, 0.01%～1% siccative, stirring solvent 3～10min of 10%～65%, and discharging, obtains component A;
The preparation of B component:
The hexamethylene diisocyanate base polymeric polyisocyanate that is 20%～52% by weight percent, 48%～80% n-butyl acetate stir 3～8min in Ultra-Low Speed situation, and discharging, obtains B component;
Take component A and B component that weight ratio is 1:0.8～1.2, mixing and stirring, then standing 2min, gets product.
The present invention compared with prior art, has the following advantages and beneficial effect:
The present invention is to adopt to react that produce can be at the coating with the rear self-healing function of scuffing of furniture, woodenware, metal/non-metal surface or car surface Air drying after nano material and synthetic fat acid resin/acrylic resin or Polyaspartic Polyurea and straight chain hydroxyl group containing polyester resin and auxiliary agent composite with hexamethylene diisocyanate base polymeric polyisocyanate according to two component (NCO ∕ OH type) reaction principles.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment 1
Nanometer self-healing paint, component A and B component that it is 1:1 by weight ratio form; The synthetic fat acid resin that described component A is 32% by weight percent, 18% straight chain hydroxyl alkyd resin (soft linear polyester resin), 0.1% nano silicon, 0.1% defoamer, 0.1% flow agent, 0.1% dispersion agent, 0.3% siccative, 49.3% solvent composition; Wherein, the PMA that solvent is 29.3% and 20% n-butyl acetate.
Component A preparation method is as follows:
(1) the synthetic fat acid resin that is 32% by weight percent, 18% straight chain hydroxyl acid esters resin join in agitator and stir;
(2), under low rotation speed condition, adding weight percent is 0.1% nano silicon, 0.1% dispersion agent, 0.1% defoamer;
(3) after high speed dispersion 5～30min, stirring at low speed adds 0.1% flow agent, 0.3% siccative, stirring solvent 3～10min of 49.3%, and discharging, obtains component A.
Described B component is 48% hexamethylene diisocyanate base polymeric polyisocyanate, 52% n-butyl acetate by weight percent.
Its preparation method is as follows: the hexamethylene diisocyanate base polymeric polyisocyanate that is 48% by weight percent, 52% n-butyl acetate stir 3～8min in Ultra-Low Speed situation, and discharging, obtains B component
Finally, take component A and B component that weight ratio is 1:1, mixing and stirring, then standing 2min, gets product.
Embodiment 2
Nanometer self-healing paint, component A and B component that it is 1:1 by weight ratio form, and described component A is comprised of the raw material of following weight percent: 30% synthetic fat acid resin, 18% straight chain hydroxyl group containing polyester resin, L0.1% nano silicon, 0.1% dispersion agent, 0.1% defoamer, 0.1% flow agent, 0.3% siccative, 3% pigment, 1% mute powder, 47.3% solvent; Described B component is comprised of the raw material of following weight percent: 46% hexamethylene diisocyanate base polymeric polyisocyanate, 50% n-butyl acetate, 4% vinyl acetic monomer.
Its preparation method is as follows:
The preparation of component A:
(1) the synthetic fat acid resin that is 30% by weight percent, 18% straight chain hydroxyl acid esters resin join in agitator and stir;
(2), under low rotation speed condition, adding weight percent is 0.1% nano silicon, 0.1% dispersion agent, 0.1% defoamer, 3% pigment, 1% mute powder;
(3) after high speed dispersion 5～30min, stirring at low speed adds 0.1% flow agent, 0.3% siccative, stirring solvent 3～10min of 47.3%, and discharging, obtains component A;
The preparation of B component: the hexamethylene diisocyanate base polymeric polyisocyanate that is 46% by weight percent, 50% n-butyl acetate, 4% vinyl acetic monomer stir 3～8min in Ultra-Low Speed situation, and discharging, obtains B component
Finally, take component A and B component that weight ratio is 1:1, mixing and stirring, then standing 2min, gets product.
Embodiment 3
Nanometer self-healing paint, component A and B component that it is 1:1.1 by weight ratio form; The Polyaspartic Polyurea that described component A is 30% by weight percent, 20% straight chain hydroxyl alkyd resin, 0.4% nano silicon, 0.2% defoamer, 0.1% flow agent, 0.1% dispersion agent, 0.2% siccative, 49% solvent composition; Described B component is 50% hexamethylene diisocyanate base polymeric polyisocyanate, 50% n-butyl acetate by weight percent.Its preparation method is identical with embodiment 1.
Embodiment 4
Nanometer self-healing paint, component A and B component that it is 1:0.9 by weight ratio form; The acrylic resin that described component A is 8% by weight percent, 10% Polyaspartic Polyurea, 10% synthetic fat acid resin, 25% straight chain hydroxyl alkyd resin, 1% nano silicon, 0.1% defoamer, 0.1% flow agent, 0.1% dispersion agent, 0.4% siccative, 45.3% solvent composition; Described B component is 47% hexamethylene diisocyanate base polymeric polyisocyanate, 53% n-butyl acetate by weight percent.Its preparation method is identical with embodiment 1.
Embodiment 5
Nanometer self-healing paint, component A and B component that it is 1:1.1 by weight ratio form; The acrylic resin that described component A is 32% by weight percent, 18% straight chain hydroxyl alkyd resin, 0.4% nano silicon, 0.2% defoamer, 0.1% flow agent, 0.1% dispersion agent, 0.2% siccative, 49% solvent composition; Described B component is 50% hexamethylene diisocyanate base polymeric polyisocyanate, 50% n-butyl acetate by weight percent.Its preparation method is identical with embodiment 1.
Embodiment 6
Nanometer self-healing paint, component A and B component that it is 1:0.8 by weight ratio form; The acrylic resin that described component A is 15% by weight percent, 13% synthetic fat acid resin, 25% straight chain hydroxyl alkyd resin, 1% nano silicon, 0.1% defoamer, 0.1% flow agent, 0.1% dispersion agent, 0.3% siccative, 45.4% solvent composition; Described B component is 48% hexamethylene diisocyanate base polymeric polyisocyanate, 52% n-butyl acetate by weight percent.Its preparation method is identical with embodiment 1.
Two component wood lacquers, furniture lacquer, automobile finish all need to add thinner in the market, and proportional range is: host: crosslinked: thinner 1:0.2～1:0.4～1.2.And being A, B component, the present invention do not need to add thinner, i.e. environmental protection again simple to operate.Implementation environment humidity≤95, temperature is 0～60 ℃, adopts the experiment correlation data of spraying paint as following table 1.
Table 1
| Test item | Detect index | Commercially available wood lacquer | The finished product that the embodiment of the present invention 1 makes |
| Admittedly contain | 125 ℃ are toasted 30 minutes | 35～45 | 45.8 |
| Free TDI content | ? | Contain | Do not contain |
| The scuffing self-healing property of filming | The hard thing such as coin, nail | Can not self-healing after scuffing | Can self-healing after scuffing |
| Yellowing resistance | Roasting 10 minutes of 1500W ultraviolet lamp | The visible obviously xanthochromia of naked eyes | Without the visible obviously xanthochromia of naked eyes |
| Protect light tint retention | Under outdoor indoor natural light, place and observe contrast | Lose phototropic phenomenon | Without loss of gloss metachromatism |
As shown in Table 1, the present invention has certain self-healing ability, and not containing free TDI, quite environmental protection, it is easy to use, without adding thinner.
According to above-described embodiment, just can realize well the present invention.What deserves to be explained is; under prerequisite based on above-mentioned design, for solving same technical problem, even if some that make in the present invention are without substantial change or polishing; the essence of the technical scheme adopting is still the same with the present invention, therefore it also should be in protection scope of the present invention.
Claims (6)
1. nanometer self-healing paint, is characterized in that, it is comprised of component A and B component, and described component A is comprised of the raw material of following weight percent:
In synthetic fat acid resin, acrylic resin, Polyaspartic Polyurea one or more 13%～50%
Straight chain hydroxyl group containing polyester resin 10%～45%
Nano silicon 0.01%～2%
Dispersion agent 0.05%～0.1%
Defoamer 0.01%～0.8%
Flow agent 0.01%～1%
Siccative 0.01%～1%
Solvent 10%～65%;
Described B component is comprised of the raw material of following weight percent:
Hexamethylene diisocyanate base polymeric polyisocyanate 20%～52%
N-butyl acetate 48%～70%;
Wherein, the weight ratio of component A and B component is 1:0.8～1.2.
2. nanometer self-healing paint according to claim 1, it is characterized in that, described component A is comprised of the raw material of following weight percent: 32% synthetic fat acid resin, 18% straight chain hydroxyl group containing polyester resin, 0.1% nano silicon, 0.1% dispersion agent, 0.1% defoamer, 0.1% flow agent, 0.3% siccative, 49.3% solvent.
3. nanometer self-healing paint according to claim 2, is characterized in that, described B component is comprised of the raw material of following weight percent: 48% hexamethylene diisocyanate base polymeric polyisocyanate, 52% n-butyl acetate.
4. nanometer self-healing paint according to claim 1, is characterized in that, described component A also comprises weight percent > 0, and≤45 pigment, weight percent > 0, and≤10 mute powder, all raw material sums of component A equal absolutely; Described B component also comprises weight percent > 0, and≤10 vinyl acetic monomer, all raw material sums of B component equal absolutely.
5. nanometer self-healing paint according to claim 4, it is characterized in that, described component A is comprised of the raw material of following weight percent: 30% synthetic fat acid resin, 18% straight chain hydroxyl group containing polyester resin, 0.1% nano silicon, 0.1% dispersion agent, 0.1% defoamer, 0.1% flow agent, 0.3% siccative, 3% pigment, 1% mute powder, 47.3% solvent; Described B component is comprised of the raw material of following weight percent: 46% hexamethylene diisocyanate base polymeric polyisocyanate, 50% n-butyl acetate, 4% vinyl acetic monomer.
6. the preparation method of the nanometer self-healing paint described in claim 1～3 any one, is characterized in that, comprises the following steps:
The preparation of component A:
(1) the synthetic fat acid resin/acrylic resin that is 13%～50% by weight percent or Polyaspartic Polyurea, 10%～45% straight chain hydroxyl group containing polyester resin join in agitator and stir;
(2), under low rotation speed condition, adding weight percent is the defoamer of 0.01%～2% nano silicon, 0.05%～1% dispersion agent, 0.01%～～0.8%;
(3) after high speed dispersion 5～30min, stirring at low speed adds 0.01%～1% flow agent, 0.01%～1% siccative, stirring solvent 3～10min of 10%～65%, and discharging, obtains component A;
The preparation of B component:
The hexamethylene diisocyanate base polymeric polyisocyanate that is 20%～52% by weight percent, 48%～80% n-butyl acetate stir 3～8min in Ultra-Low Speed situation, and discharging, obtains B component;
Take component A and B component that weight ratio is 1:0.8～1.2, mixing and stirring, then standing 2min, gets product.
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Cited By (6)
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| CN105462484A (en) * | 2015-12-31 | 2016-04-06 | 江苏兰陵高分子材料有限公司 | High-solid-content weather-proof bottom-face integrated anticorrosive paint containing polyaspartic acid ester |
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| CN107641450A (en) * | 2017-10-25 | 2018-01-30 | 厦门双瑞船舶涂料有限公司 | A kind of high solid high durable polyurethane coating and preparation method thereof |
| CN107793912A (en) * | 2017-11-09 | 2018-03-13 | 中昊北方涂料工业研究设计院有限公司 | For the anti-rain erosion resistant coating for pushing away shell body of aircraft engine and its preparation |
| CN112210283A (en) * | 2020-09-29 | 2021-01-12 | 广东嘉宝莉科技材料有限公司 | Double-component polyurethane woodenware coating composite product and preparation method and application thereof |
| CN113717622A (en) * | 2021-10-13 | 2021-11-30 | 深圳市深赛尔股份有限公司 | Asparagus resin-containing water-based self-repairing industrial coating and preparation method thereof |
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| CN107641450A (en) * | 2017-10-25 | 2018-01-30 | 厦门双瑞船舶涂料有限公司 | A kind of high solid high durable polyurethane coating and preparation method thereof |
| CN107641450B (en) * | 2017-10-25 | 2020-05-26 | 厦门双瑞船舶涂料有限公司 | High-solid-content high-weather-resistance polyurethane coating and preparation method thereof |
| CN107793912A (en) * | 2017-11-09 | 2018-03-13 | 中昊北方涂料工业研究设计院有限公司 | For the anti-rain erosion resistant coating for pushing away shell body of aircraft engine and its preparation |
| CN112210283A (en) * | 2020-09-29 | 2021-01-12 | 广东嘉宝莉科技材料有限公司 | Double-component polyurethane woodenware coating composite product and preparation method and application thereof |
| CN112210283B (en) * | 2020-09-29 | 2022-03-22 | 广东嘉宝莉科技材料有限公司 | Double-component polyurethane woodenware coating composite product and preparation method and application thereof |
| CN113717622A (en) * | 2021-10-13 | 2021-11-30 | 深圳市深赛尔股份有限公司 | Asparagus resin-containing water-based self-repairing industrial coating and preparation method thereof |
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Effective date of registration: 20210916 Address after: 310000 room 1027, building 1, No. 388, Fengtan Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Jiayuan environmental protection material Co.,Ltd. Address before: 537100 second floor, No.4, Fuji new town, Guicheng Town, Gangbei District, Guigang City, Guangxi Zhuang Autonomous Region Patentee before: GUIGANG RUICHENG TECHNOLOGY Co.,Ltd. |