CN106634475B

CN106634475B - Safe, environment-friendly and high-texture bright pearl effect paint and preparation method and application thereof

Info

Publication number: CN106634475B
Application number: CN201611246235.4A
Authority: CN
Inventors: 朱忠敏; 叶小明; 王鹏飞
Original assignee: DONGLAI COATING TECHNOLOGY (SHANGHAI) CO LTD
Current assignee: DONGLAI COATING TECHNOLOGY (SHANGHAI) Co.,Ltd.
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2020-04-10
Anticipated expiration: 2036-12-29
Also published as: CN106634475A

Abstract

The invention relates to a safe environment-friendly high-texture bright pearl effect paint and a preparation method and application thereof, wherein the paint consists of a first paint and a second paint, and the first paint comprises a first component, a second component and a third component; the first component consists of a solvent A, a resin B, a resin C, a dispersant, an anti-settling agent, a directing agent, an anti-wear agent, an ultraviolet absorbent, a leveling agent and a drier; the second component is bright pearl powder; the third component consists of a curing agent and a solvent B; the second paint comprises a first component and a third component, and the weight ratio of the first component to the third component in the second paint is the same as that of the first component to the third component in the first paint; during construction, the first paint and the second paint are constructed according to the 2C1B method. Compared with the prior art, the invention has the advantages of beautiful appearance, durability, convenient construction, simple operation and the like.

Description

Safe, environment-friendly and high-texture bright pearl effect paint and preparation method and application thereof

Technical Field

The invention relates to a coating, in particular to a safe and environment-friendly high-texture bright pearl effect paint and a preparation method and application thereof.

Background

Beauty is always pursued by people, and along with the development of the times, the beauty is not only aimed at people, but also some daily necessities are added with rows and columns for pursuing beauty, such as mobile phones, backpacks, cosmetic mirrors, cosmetic packages and the like, which are not more and more beautiful and more colorful, but along with the change of environment, the contact with daily protections and cosmetics of people is increased, and the beauty decoration is greatly damaged.

From the above, it can be seen that in the future, for these bright and gorgeous decorations, it is important that beauty and protection must be achieved at the same time, but general decorations are difficult to be considered, either are beautiful and impractical, or are durable and unattractive, or are difficult to operate due to construction difficulty, which is one of the technical problems to be solved urgently in the art.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a safe, environment-friendly and high-texture bright pearl effect paint which is attractive, durable, convenient to construct and simple to operate and a preparation method thereof.

The purpose of the invention can be realized by the following technical scheme:

a safe and environment-friendly high-texture bright pearl effect paint comprises a first paint and a second paint, wherein the first paint comprises a first component, a second component and a third component,

the first component comprises the following substances in parts by weight:

the second component is bright pearl powder;

the third component comprises the following substances in parts by weight:

45-55 parts of curing agent, namely,

45-55 parts of a solvent B;

the resin A is weather-resistant polyester resin, the resin B is hydroxy acrylic resin, and the resin C is thermoplastic acrylic resin;

the weight ratio of the first component to the second component to the third component in the first paint is 100: 1-2: 30-35,

the second paint comprises a first component and a third component, and the weight ratio of the first component to the third component in the second paint is the same as that of the first component to the third component in the first paint.

As a preferred technical solution, it is proposed that,

the solid content of the resin A is 70-75%, the hydroxyl content is 4-5%, the glass transition temperature is 40-50 ℃, the appearance fullness is high, the leveling property is good, the flexibility is good,

the solid content of the resin B is 60-65%, the hydroxyl content is 4-5%, the glass transition temperature is 50-60 ℃, the appearance fullness is high, the leveling property is good, the flexibility is good, the scratch resistance and the wear resistance are realized, the chemical resistance is excellent,

the solid content of the resin C is 45-50%, the hydroxyl content is 0.5-1.5%, the glass transition temperature is 85-95 ℃, the molecular weight is large, the drying is rapid, and the resin C has excellent adhesive force to ABS, PC, PS and the like.

As a preferred technical solution, it is proposed that,

the resin A is one of commercially available polyester resin of Nuplex or polyester resin of cyanogen,

the resin B is one of DSM hydroxyl acrylic resin or cyanohydrin acrylic resin sold in the market,

the resin C is one of thermoplastic acrylic resin sold in the market or thermoplastic acrylic resin of DIC.

As a preferable technical proposal, the resin A is selected from commercial Nuplex total 168 type saturated polyester resin,

the resin B is selected from the commercially available SM510N type cyanohydrin acrylic resin,

the resin C is thermoplastic acrylic resin of a modesty FS-2060A type sold on the market.

As a preferred technical solution, it is proposed that,

the dispersing agent comprises EFKA4010, EFKA5010, BYK110 or BYK104 which are sold in the market, can effectively disperse and stabilize bright pearl powder,

the anti-settling agent is commercially available R972, AS200, M4 or DX6900, and can effectively prevent the settling of bright pearl powder

The orientation agent comprises BYK104S, EFKA5065 or BYK220S which are sold in the market, can promote the arrangement of bright pearl powder better, prevent the phenomenon of uneven thickness in the construction process,

the wear-resisting agent comprises commercially available Luobo moisture 1778 or 5070D, can fill gaps among bright pearl powder particles, enables the surface of a paint film to be smoother and finer, greatly enhances the wear resistance,

the ultraviolet absorbent is commercially available BASF292 or BASF1134,

the leveling agent is selected from at least one of BYK331, BYK306, EFKA3777, TEGO100 or EGO300 which are sold on the market, the leveling agent has certain help to the arrangement of bright pearl powder, and simultaneously the surface of a paint film is more smooth,

the drier is 1 wt% of T-12 sold in the market, promotes the quick drying of a paint film,

solvent A be the mixed solvent, for the mixture of at least two kinds in PMA, MIBK or the BAC, different solvent volatilization speed and to surface tension difference, be influential to the arrangement of bright pearl powder, through the use of mixed solvent, be favorable to the arrangement of bright pearl powder, the outward appearance effect is more bright, prevents simultaneously that the paint film from producing defects such as foaming, pinhole in the baking process.

As the preferred technical proposal, the bright pearl powder is the commercial Gleite glitter powder.

As a preferred technical solution, it is proposed that,

the curing agent comprises commercially available BAYER3390, BASFHI90 or TPA-90SB, ensures that a paint film is completely crosslinked, shows excellent chemical corrosion resistance,

the solvent B is BAC.

The preparation method of the safe and environment-friendly high-texture bright pearl effect paint comprises the following steps:

(1) adding the resin A, the resin B, the resin C, the dispersing agent and the anti-settling agent into the solvent A at the rotating speed of 300-500 rpm according to the proportion, stirring for 5-8 minutes, then adding the wear-resisting agent, stirring for 8-10 minutes at the rotating speed of 800-1000 rpm, grinding by using a grinder until the fineness is less than or equal to 15 mu m, then adding the orienting agent, the ultraviolet absorbent, the flatting agent and the drier, and uniformly stirring to obtain a first component;

(2) bright pearl powder is used as a second component;

(3) uniformly stirring the curing agent and the solvent B to prepare a third component;

(4) uniformly mixing the first component and the second component according to the proportion, and then adding the third component to obtain a first paint;

(5) uniformly mixing the first component and the third component according to the proportion to obtain a second paint;

(6) and respectively placing the prepared first paint and the second paint for later use.

The application of safe environment-friendly high-texture bright pearl effect paint is used for coating a workpiece, and comprises the following steps:

(a) simultaneously spraying the first paint and the second paint on the workpiece through a first spray gun and a second spray gun which are sequentially arranged from front to back respectively;

(b) and (5) baking the sprayed workpiece for one time to finish coating the workpiece.

On a normal production line, two spray guns are used for spraying in tandem, so that the construction efficiency is improved, and the one-time yield is improved. The first paint is a bright pearl paint, one function is to enhance the adhesive force between a paint film and materials, and the other function is to enhance the arrangement of bright pearl powder; the second paint is actually a varnish, one function is to protect bright pearl powder so that the appearance is fuller and brighter, and the other function is to improve the corrosion resistance of the finished product to the external environment (acid, alkali, sweat and cosmetics); the traditional paint can not meet the requirements of adhesion and appearance at the same time, so that a primer must be added to enhance the adhesion of a paint film to a material.

Preferably, the inner diameter of the nozzle of the first spray gun is 2.2-2.8 mm, and the inner diameter of the nozzle of the second spray gun is 1.2-1.8 mm.

Because bright, dazzle various, the main bright pearl powder that is of shining equivalent effect produces, the production of this kind of effect is with the big particle diameter of bright pearl powder, the range of lamellar structure and bright pearl powder has the direct relation, the particle diameter of bright pearl powder is roughly at 0.5 ~ 2mm, first spray gun spraying be bright pearl paint (first paint), it can follow the gun mouth blowout not stifled rifle not to guarantee bright pearl powder, guarantee again that once spun pearl paint has enough quantity can cover the material, the event is to adopt the nozzle (e.g. 2.5mm) of relatively great internal diameter, the second is only as the spraying second way varnish to the spray gun, the event adopts the nozzle of normal internal diameter (e.g. 1.5mm), both can the beautiful outward appearance of spraying department, can also prevent the paint film sagging simultaneously.

According to the invention, by adopting a mode of mixing the weather-resistant polyester resin, the hydroxyl acrylic resin and the thermoplastic propionic resin for use, the adhesive force of a paint film to a coated material is ensured, and the dazzling effect of the bright pearl powder can be effectively released and amplified, so that the coated object has various beautiful appearances such as beauty, scintillation, colorful appearance and the like, the scratch resistance, wear resistance and chemical corrosion resistance of the paint film are greatly improved, and the construction process is very simple.

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

(1) scratch and abrasion resistance and chemical corrosion resistance.

The invention adopts the mode of mixing the weather-resistant polyester resin, the high-hydroxyl acrylic resin and the thermoplastic propionic acid resin for use, has high appearance fullness and good leveling property, ensures the adhesive force to materials, has enough crosslinking density, can effectively resist the corrosion of chemicals, can well disperse and interpenetrate the wear-resistant powder with resin and bright pearl powder after being ground, can provide certain rigidity for a paint film besides improving the smoothness of the surface of the paint film, and improves the corrosion resistance of the paint film.

(2) The appearance is bright and beautiful.

The bright appearance of the product is the characteristic of glittering and translucent, and along with the different angles of observers, the product can change colors, gives people a colorful feeling, can obviously feel fine granular feeling on hand feeling, and has a certain anti-skid effect.

(3) The construction is simple, and the operation is convenient.

Usually, to achieve a bright effect, at least three coats are made, i.e. primer, bright pearl paint, varnish, and each coat must be baked, so-called 3C 3B; according to the invention, 3C3B is innovatively changed into 2C1B, namely, the coating is carried out twice and then the baking is carried out together, namely 2C1B, and two transformed spray guns are adopted for construction at the front and the back simultaneously, so that the construction efficiency is improved, and the primary yield is improved.

(4) Is safe and environment-friendly.

Firstly, the paint does not contain harmful substances such as benzene, toluene and the like, and a coated workpiece (automobile part) can be detected through ELV and VOC; secondly, the 3C process (the process of the primer, the bright pearl paint and the varnish) is changed into the 2C process of the bright pearl paint and the varnish, so that the construction procedures are reduced, and the pollution and the energy consumption are reduced.

Detailed Description

The present invention will be described in detail with reference to specific examples.

Example 1

A safe environment-friendly high-texture bright pearl effect paint comprises a first paint and a second paint, wherein the first paint comprises a first component, a second component and a third component,

the first component consists of the following substances in parts by weight:

the second component is bright pearl powder;

the third component consists of the following substances in parts by weight:

45-55 parts of curing agent, namely,

45-55 parts of solvent B;

wherein the resin A is weather-resistant polyester resin, the solid content is 70-75%, the hydroxyl content is 4-5%, and the glass transition temperature is 40-50 ℃; the resin B is hydroxyl acrylic resin, the solid content is 60-65%, the hydroxyl content is 4-5%, and the glass transition temperature is 50-60 ℃; the resin C is thermoplastic acrylic resin, the solid content is 45-50%, the hydroxyl content is 0.5-1.5%, and the glass transition temperature is 85-95 ℃.

In particular to the present embodiment, it is,

(1) the composition and preparation method of the first component are as follows:

according to the weight ratio, firstly putting MIBK, PMA, BAC, Cyanote 510, DSM7130, DIC991, BYK104 and M4 into a cylinder, stirring for 5-8min at 500r/pm, then putting Luobu 1778, stirring for 10min at 1000r/pm according to 800-.

(2) The second component is 801# Grite gold scallion powder.

(3) The third component comprises the following components and a preparation method:

the components in parts by weight

BAYER3390 55，

BAC 45。

The weight ratio of the first component to the second component to the third component in the first paint is 100: 1-2: 30-35.

The weight ratio of the first component to the third component in the second paint pass is the same as the weight ratio of the first component to the second component in the first paint pass.

The preparation of the paint comprises the following steps:

(1) uniformly mixing the first component and the second component according to the proportion, and then adding the third component to obtain a first paint;

(2) uniformly mixing the first component and the third component according to the mass ratio to obtain a second paint;

(3) and respectively placing the first paint and the second paint for standby.

The safe and environment-friendly high-texture bright pearl effect paint is used for coating a workpiece, and comprises the following steps:

The nozzle of the first lance had an internal diameter of 2.5mm and the nozzle of the second lance had an internal diameter of 1.5 mm.

The first pass paint was made into coated plaques with the test properties shown in table 1.

TABLE 1

Example 2

This embodiment is substantially the same as embodiment 1, except that in this embodiment:

(1) the composition of the first component is as follows:

(2) the second component is 801# Grignard gold scallion powder;

(3) the composition of the third component is as follows:

the components in parts by weight

BAYER3390 45，

BAC 55。

Example 3

(1) the composition of the first component is as follows:

(2) the second component is 801# Grignard gold scallion powder;

(3) the composition of the third component is as follows:

the components in parts by weight

BAYER3390 50，

BAC 50。

Example 4

This example is substantially the same as example 1, except that resin a in this example is a saturated polyester resin of type total 168 of Nuplex.

Example 5

This example is substantially the same as example 1, except that the resin B in this example is cyanoacrylate type SM 510N.

Example 6

This example is substantially the same as example 1, except that a thermoplastic acrylic resin such as the FS-2060A type, which is a D modest, was used as resin C in this example.

Example 7

This example is substantially the same as example 1, except that EFKA4010 is used as the dispersant in this example.

Example 8

This example is essentially the same as example 1, except that EFKA5010 is used as the dispersant in this example.

Example 9

This example is substantially the same as example 1, except that BYK110 is used as the dispersant in this example.

Example 10

This embodiment is substantially the same as embodiment 1, except that R972 is selected as the anti-settling agent in this embodiment.

Example 11

The present embodiment is substantially the same AS embodiment 1, except that AS200 is used AS the anti-settling agent in the present embodiment.

Example 12

This example is substantially the same as example 1, except that DX6900 is used as the anti-settling agent in this example.

Example 13

This example is substantially the same as example 1, except that BYK104S is used as the directing agent in this example.

Example 14

This example is essentially the same as example 1, except that EFKA5065 is used as the directing agent in this example.

Example 15

This example is substantially the same as example 1, except that 5070D is used as the directing agent in this example.

Example 16

This example is substantially the same as example 1, except that BASF1134 is used as the uv absorber in this example.

Example 17

This example is substantially the same as example 1, except that EFKA3777 is used as the leveling agent in this example.

Example 18

This example is substantially the same as example 1, except that TEGO100 is used as the leveling agent in this example.

Example 19

This example is substantially the same as example 1, except that the leveling agent in this example is a mixture of TEGO100 and EGO300 at a mass ratio of 1: 1.

Example 20

This example is substantially the same as example 1 except that the solvent a in this example is a mixed solvent of MIBK and PMA in a mass ratio of 1: 1.

Example 21

This example is substantially the same as example 1, except that BASFHI90 is used as the curing agent.

Example 22

This example is substantially the same as example 1 except that TPA-90SB is used as the curing agent in this example.

Example 23

This example is substantially the same as example 1 except that the first, second and third components of the first pass are present in a weight ratio of 100:1: 30.

Example 24

This example is substantially the same as example 1 except that the first, second and third components of the first pass are present in a weight ratio of 100:2: 35.

Example 25

This example is substantially the same as example 1 except that the first, second and third components of the first pass are present in a weight ratio of 100:1.5: 33.

Claims

1. A safe and environment-friendly high-texture bright pearl effect paint is characterized by comprising a first paint and a second paint, wherein the first paint comprises a first component, a second component and a third component,

the first component comprises the following substances in parts by weight:

the second component is bright pearl powder;

the third component comprises the following substances in parts by weight:

45-55 parts of curing agent, namely,

45-55 parts of a solvent B;

the second paint consists of a first component and a third component, and the weight ratio of the first component to the third component in the second paint is the same as that of the first component to the third component in the first paint;

the dispersant includes commercially available EFKA4010, EFKA5010, BYK110 or BYK104,

the anti-settling agent is R972, AS200, M4 or DX6900 sold in the market,

the directing agent comprises BYK104S, EFKA5065 or BYK220S which are commercially available,

the anti-wear agent comprises commercially available luoborun 1778 or 5070D,

the ultraviolet absorbent is commercially available BASF292 or BASF1134,

the leveling agent is selected from at least one of BYK331, BYK306, EFKA3777, TEGO100 or EGO300 which are sold on the market,

the drier is 1 wt% of T-12 which is sold on the market,

the solvent A is a mixed solvent which is a mixture of at least two of MIBK, PMA or BAC;

the curing agent comprises BAYER3390, BASFHI90 or TPA-90SB which are commercially available,

the solvent B is BAC;

(2) bright pearl powder is used as a second component;

(6) respectively placing the prepared first paint and the second paint for later use;

the safe environment-friendly high-texture bright pearl effect paint is used for coating a workpiece, and comprises the following steps:

(b) baking the sprayed workpiece for one time to finish coating the workpiece;

the inner diameter of the nozzle of the first spray gun is 2.2-2.8 mm, and the inner diameter of the nozzle of the second spray gun is 1.2-1.8 mm.

2. The safe and environment-friendly high-texture bright pearl effect paint according to claim 1, which is characterized in that,

the solid content of the resin A is 70-75%, the hydroxyl content is 4-5%, the glass transition temperature is 40-50 ℃,

the solid content of the resin B is 60-65%, the hydroxyl content is 4-5%, the glass transition temperature is 50-60 ℃,

the solid content of the resin C is 45-50%, the hydroxyl content is 0.5-1.5%, and the glass transition temperature is 85-95 ℃.

3. The safe and environment-friendly high-texture bright pearl effect paint according to claim 1 or 2, which is characterized in that,

4. The safe, environment-friendly and highly textured bright pearl effect paint as claimed in claim 3, wherein the resin A is selected from commercially available Nuplex Total 168 saturated polyester resin,

5. The safe and environment-friendly high-texture bright pearl effect paint as claimed in claim 1, wherein the bright pearl powder is commercially available glitter gilt powder.

6. The method for preparing safe, environment-friendly and highly textured bright pearl effect paint according to claim 1, wherein the method comprises the following steps:

(2) bright pearl powder is used as a second component;

7. The use of the safe and environment-friendly bright pearl effect paint with high texture as claimed in claim 1, wherein the safe and environment-friendly bright pearl effect paint with high texture is used for coating a workpiece, comprising the following steps:

8. The use of the safe and environment-friendly paint with bright pearl effect and high texture as claimed in claim 7, wherein the inner diameter of the nozzle of the first spray gun is 2.2-2.8 mm, and the inner diameter of the nozzle of the second spray gun is 1.2-1.8 mm.