CN112029400A - Plastic material based on high-wear-resistance water-based elastic coating - Google Patents
Plastic material based on high-wear-resistance water-based elastic coating Download PDFInfo
- Publication number
- CN112029400A CN112029400A CN202010926389.8A CN202010926389A CN112029400A CN 112029400 A CN112029400 A CN 112029400A CN 202010926389 A CN202010926389 A CN 202010926389A CN 112029400 A CN112029400 A CN 112029400A
- Authority
- CN
- China
- Prior art keywords
- agent
- water
- coating
- wear
- elastic coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/08—Polyurethanes from polyethers
Abstract
The invention discloses a plastic material based on high-wear-resistance water-based elastic coating, which consists of a plastic substrate and a coating on the surface of the plastic substrate; the coating is prepared from high wear-resistant water-based elastic paint; the high wear-resistant water-based elastic coating comprises an agent A and an agent B; the agent A comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water; the agent B comprises a curing agent and a diluent. The formula of the invention realizes the matte effect, can realize that the elastic paint system can achieve the required matte effect with little or no matting powder, has better matting stability and good paint film permeability, and realizes the effect that the paint film has high wear resistance and excellent hand feeling by taking three resins as main bodies and combining a small amount of auxiliary agents.
Description
Technical Field
The invention belongs to the technology of composite plastics, and particularly relates to a plastic material based on a high-wear-resistance water-based elastic coating.
Background
In the prior art, the wear-resistant water-based elastic paint developed in the CN106221339A wear-resistant and scratch-resistant water-based elastic paint has excellent wear resistance when being applied to metal materials, but has the defects of hard hand feeling, unbalanced wear resistance and hand feeling, good wear resistance, hard hand feeling and poor wear resistance. The surface of the TPU film contains a coating in the prior art, the coating is a hardened elastic coating or a super-hydrophobic coating, a layer of protective film is attached to the surface of the coating, the protective film is a gum plastic film, a multilayer co-extruded film or an electrostatic adsorption film, the stripping force between the protective film and the coating is 0.05-10N/25 mm, the protective film and the coating are attached to be flat and good, and the protective film can resist a blade coating and play a good role in protecting the blade coating in the processes of gum backing, slitting, transportation and scraper blade use at the later stage. In the prior art, the plastic elastic coating is mainly a solvent type elastic coating, a resin system contains a large amount of volatile organic solvents, a diluent is also an organic solvent, the content of dimethylbenzene, butanone, ethyl acetate and the like exceeds 60 percent, the VOC seriously exceeds the standard, and the plastic elastic coating is not environment-friendly; the solvents are all flammable and explosive, and have great safety risks in production, transportation, storage and construction. The prior art discloses a composite wear-resistant agent and a wear-resistant polyurea elastomer coating, wherein the composite wear-resistant agent comprises hydroxyl silicone oil, polytetrafluoroethylene micro powder, a BYK (BYK-bonded Kevlar) additive and graphene oxide, the wear-resistant additive takes the hydroxyl silicone oil, the polytetrafluoroethylene micro powder, the BYK additive and the graphene oxide as main components, and the friction coefficient of the wear-resistant agent is reduced through the matching use among the components, and the components have strong binding force, so that the mechanical property of the wear-resistant additive is improved. The prior art discloses an environment-friendly thermoplastic elastic coating which is composed of the following components in parts by weight: 30-40 parts of silicon rubber powder, 10-15 parts of styrene/isoprene/styrene block copolymer, 3-5 parts of thickening agent, 1-2 parts of flame retardant, 1-3 parts of defoaming agent, 2 parts of bactericide, 10-30 parts of diatomite, 3 parts of open-cell expanded perlite, 2-4 parts of nano silicon dioxide, 3 parts of nano iron dioxide and 1 part of pigment; the coating has excellent physical and mechanical properties, good heat resistance and low temperature resistance, excellent electrical property and heat insulation, fatigue resistance, aging resistance, good rebound resilience and sealing property, and can be directly used for injection molding or extrusion molding because vulcanization is not required in processing, thereby being safe and environment-friendly. The prior art provides a water-based chameleon solvent-resistant elastic coating paint, which comprises the following components in parts by mass: 10-15 parts of deionized water, 40-60 parts of water-based resin, 6-10 parts of chameleon pigment, 8-10 parts of water-based curing agent, 2.5-5 parts of water-based matting powder, 0.3-0.5 part of dispersing agent, 0.3-0.5 part of wetting agent, 0.8-1.2 parts of flatting agent, 3-4 parts of film-forming assistant, 1-2 parts of hand feeling assistant, 1-2 parts of water-based wax, 0.1-0.3 part of defoaming agent, 0.1-0.3 part of pH regulator, 0.2-0.4 part of thickening agent, 2-3 parts of propylene glycol methyl ether acetate and 1-3 parts of DB7650 special modified polyurethane. However, a large amount of harmful organic solvent is generated in the construction of the existing solvent-based elastic coating, which brings harm to the health of workers; the same type of waterborne elastic coating on the market mainly has the problems of poor hand feel and insufficient wear resistance.
Disclosure of Invention
The invention discloses a plastic material based on high-wear-resistance water-based elastic coating, wherein the main coating material on the surface of a plastic substrate is water-based resin such as water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid and the like, so that the problems that an oily elastic coating system contains a large amount of organic solvent, a diluent is also organic solvent, VOC does not reach the standard and the environment is not protected are solved; solves the problems that the existing aqueous plastic elastic coating has unbalanced wear resistance and hand feeling, good wear resistance, hard hand feeling and poor wear resistance.
The invention adopts the following technical scheme:
the plastic material based on the high wear-resistant water-based elastic coating consists of a plastic substrate and a coating on the surface of the plastic substrate; the coating is prepared from a high-wear-resistance water-based elastic coating; the high wear-resistant water-based elastic coating comprises an agent A and an agent B; the agent A comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water; the agent B comprises a curing agent and a diluent.
The preparation method of the plastic material based on the high-wear-resistance water-based elastic coating comprises the following steps:
(1) stirring water-based polycarbonate polyurethane, water-based polyether polyurethane and water-based hydroxy acrylic acid, adding deionized water and a neutralizing agent, stirring, adding a water-based dispersing agent, a water-based wetting and leveling agent, water-based wax slurry and a water-based thixotropic agent, stirring, adding a water-based defoaming agent, and stirring to obtain an agent A; stirring the curing agent and the diluent to obtain a B agent; mixing the agent A and the agent B to form the high-wear-resistance water-based elastic coating;
(2) and (3) coating the high-wear-resistance water-based elastic coating on the surface of the plastic substrate, and curing to obtain the plastic material based on the high-wear-resistance water-based elastic coating.
The high wear-resistant water-based elastic coating can be formed by stirring and mixing the agent A and the agent B, or can be formed by independently packaging the agent A and the agent B, and the agent A and the agent B are mixed before use. The formula of the invention realizes the matte effect, can realize that the elastic paint system can achieve the required matte effect with little or no matting powder, has better matting stability and good paint film permeability, and realizes the effect that the paint film has high wear resistance and excellent hand feeling by taking three resins as main bodies and combining a small amount of auxiliary agents.
In the invention, the curing is carried out by heating at 60-80 ℃ for 30-50 minutes.
In the invention, the stirring speed is 600-1200 rpm, and the time of one-time stirring is 3-30 minutes.
In the invention, the weight ratio of the agent A to the agent B is that the agent A: the component B is 10: 2-3, and the high-wear-resistance water-based elastic coating is obtained by uniformly mixing or independently packaging, is used for surface decoration of plastic materials and has high wear resistance and elasticity.
In the invention, the agent A is 100 parts by weight and consists of the following raw materials in parts by weight:
in the agent B, the mass percent of the curing agent is 80-85%.
The resin system of the invention selects the waterborne dispersion resin, the system does not contain or contains little VOC, the coating system is healthy and environment-friendly, and meets the requirement of national environmental protection policy (the VOC content is less than 200 g/L). The water-based polycarbonate type polyurethane resin dispersoid preferably has a hydroxyl value of 30-50 mgKOH/g, has wear resistance and toughness, can participate in a crosslinking reaction, and can contribute to realizing high wear resistance, such as J8857 and Huiyu WPU2501 of Corcission; the waterborne polyether polyurethane has good flexibility and can provide excellent soft hand feeling, such as Acure 809 of Corcisco, M-710 of ultra-hong science and technology and R-1010 of Tesmann; the hydroxyl value of the water-based hydroxyl acrylic acid is preferably 80-120 mgKOH \ g, the curing crosslinking point of the system is increased, the drying curing speed of the product can be improved, the strength of a dry film is improved, and the wear resistance of the paint film is increased, such as LW-2502 of LiYe Xin and 3200D of Wayi; according to the invention, by matching and using three resins, 30-40 parts of water-based polycarbonate polyurethane, 30-40 parts of water-based polyether polyurethane and 5-10 parts of water-based hydroxy acrylic acid, excellent hand feeling can be realized, and simultaneously, a paint film is ensured to have high wear resistance.
In the invention, the neutralizer is preferably a volatile ammonia neutralizer, such as one or more of ammonia water, AMP-95, N-dimethylethanolamine and triethylamine, more preferably N, N-dimethylethanolamine; the water-based dispersant is preferably one or more of BYK-192, BYK-190 and AQ-330, more preferably BYK-192, and can realize good dispersion and arrangement of the matting powder and increase the permeability of a paint film; one or more of Tego 270, Tego KL-245, BYK-346 and FS 444 is/are preferably selected as the water-based wetting and leveling agent, so that the wetting and leveling effect of the wet film is improved, and the construction universality is increased; the water-based defoaming agent is preferably one or more of BYK-028, BYK-022, Tego810, Tego1488 and BYK-025, has good defoaming and defoaming effects in the coating, and avoids the defect that the coating generates micro bubbles in the construction and drying processes; the water-based thixotropic agent is preferably one or more of AQ-633E, RHEOLATE 299, ViscoPlus 3010 and RHEOLATE 350D, the components of the thixotropic agent are polyamide wax or an associated polyurethane structure, the thixotropy of a system can be effectively adjusted, the problems of construction edge accumulation and poor sagging are solved, preferably one or more of PEW 2011, XH-8008, XH-8040 and D-806, the smoothness of the surface of a paint film is improved, and the thixotropic agent contributes to hand feeling enhancement and wear resistance improvement; the curing agent is preferably one or more of Bayer 2487-1, Bayer 304, Bayer 3100 and Bayer 2655, which are water-based isocyanates, have good dispersibility and moderate reaction speed in a water-based system, react with hydroxyl in resin, improve the compactness of a paint film and increase the wear resistance and resistance; the diluent is preferably polyurethane-grade propylene glycol methyl ether acetate, has good compatibility with isocyanate and certain water solubility, and is beneficial to uniform dispersion of the curing agent in an aqueous formula system.
Compared with the prior art, the fully-hydrated dispersion resin is selected as the main connecting material, so that the problem of VOC caused by high solvent volatilization of the oily elastic coating is solved, the VOC content of the system is less than 200 g/L, and the national environmental protection VOC control requirement is met; the problem that the wear resistance and the hand feeling cannot be achieved simultaneously is solved through the matching design of the water-based resins with different characteristics, the balance of the wear resistance and the hand feeling is realized by combining the addition of the auxiliary agent, the soft and smooth hand feeling can be met, and meanwhile, the high wear resistance can be met (RCA can reach 100 times, and the hand feeling grade is 4).
Drawings
FIG. 1 shows RCA results of commercially available coatings and coatings of examples of the present invention after they are applied to a surface (template) of a plastic material;
FIG. 2 shows RCA results of a commercially available coating and a coating according to an embodiment of the present invention applied to a plastic surface (commercially available remote controller) for decoration.
Detailed Description
The raw materials involved in the invention are all products sold in the field of coatings, and all brands sold in the market are suitable on the basis of the limitation of the types of the resin or the additive; the specific preparation method and the test method are conventional methods for coating and coating. The invention has the creativity that a new formula is provided, the technical effects that the plastic surface coating has wear resistance and excellent hand feeling are realized by using three main resins and combining additives, and the matte effect is realized without adding matting powder.
Example one
A high-wear-resistance water-based elastic coating is prepared by stirring and mixing an agent A and an agent B according to a weight ratio of 10: 2. Wherein the agent A consists of the following components: the water-based polyurethane adhesive comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water.
The basic formula of the agent A (100 parts by weight) is as follows:
the agent B is formed by mixing a curing agent and a diluent; the basic formula of the agent B (100 parts by weight) is as follows:
curing agent Bayer 30485 parts
Propylene glycol methyl ether acetate 15 parts
1. Adding the waterborne resins such as the waterborne polycarbonate polyurethane, the waterborne polyether polyurethane, the waterborne hydroxy acrylic acid and the like into a dispersion cylinder according to a proportion, and dispersing for 3 minutes under the stirring of the speed of 800 rpm;
2. sequentially adding deionized water and a neutralizing agent into the dispersion liquid in the step 1 at a stirring speed of 600rpm, dispersing for 3 minutes, and uniformly stirring;
3. sequentially adding the aqueous dispersing agent, the aqueous wetting leveling agent, the aqueous wax slurry and the aqueous thixotropic agent into the dispersion liquid in the step 2 at a stirring speed of 1000rpm, and dispersing for 10 minutes;
4. slowly adding the water-based defoaming agent into the mixture obtained in the step 3 at the stirring speed of 1200rpm, dispersing for 15 minutes, and uniformly stirring; after the addition, the rotating speed is adjusted to 1200rpm, and the dispersion is carried out for 20 minutes; namely, the A agent is used for the high wear-resistant water-based elastic coating for the surface decoration of the plastic material;
5. adding the curing agent and the diluent into a dispersion cylinder in sequence, and stirring and dispersing for 10 minutes at 800rpm to obtain an agent B for the high-wear-resistance water-based elastic coating for surface decoration of the plastic material;
6. and uniformly mixing the agent A and the agent B according to a certain weight ratio (the weight ratio of the agent A to the agent B is 10:2) to obtain the high-wear-resistance water-based elastic coating.
Comparative example
On the basis of the examples, 1.9 parts of the agent A in deionized water was replaced with 1.9 parts by weight of matting powder TS-100, and the remainder was unchanged to give comparative coating 1.
On the basis of the examples, 8 parts by weight of LW-2502 in formulation A was replaced with 8 parts by weight of deionized water, and the remainder was unchanged to give comparative coating 2.
On the basis of the examples, LW-2502 in formulation A was replaced with a waterborne epoxy resin (AB-EP-20), and the remainder was unchanged to give comparative coating 3.
On the basis of the examples, the amounts of Acure 809 and LW-2502 in formulation A were interchanged, the remainder being unchanged, to give comparative coating 4.
On the basis of the examples, J8857 in the agent A was replaced with a hydroxyl linear polyester resin, and the remainder was unchanged, to obtain a comparative paint 5.
Example two
A high-wear-resistance water-based elastic coating is prepared by stirring and mixing an agent A and an agent B according to a weight ratio of 10: 3. Wherein the agent A consists of the following components: the water-based polyurethane adhesive comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water.
The basic formula of the agent A (100 parts by weight) is as follows:
the agent B is formed by mixing a curing agent and a diluent; the basic formula of the agent B (100 parts by weight) is as follows:
curing agent Bayer 30485 parts
Propylene glycol methyl ether acetate 15 parts
1. Adding the waterborne resins such as the waterborne polycarbonate polyurethane, the waterborne polyether polyurethane, the waterborne hydroxy acrylic acid and the like into a dispersion cylinder according to a proportion, and dispersing for 3 minutes under the stirring of the speed of 800 rpm;
2. sequentially adding deionized water and a neutralizing agent into the dispersion liquid in the step 1 at a stirring speed of 600rpm, dispersing for 3 minutes, and uniformly stirring;
3. sequentially adding the aqueous dispersing agent, the aqueous wetting leveling agent, the aqueous wax slurry and the aqueous thixotropic agent into the dispersion liquid in the step 2 at a stirring speed of 1000rpm, and dispersing for 10 minutes;
4. slowly adding the water-based defoaming agent into the mixture obtained in the step 3 at the stirring speed of 1200rpm, dispersing for 15 minutes, and uniformly stirring; after the addition, the rotating speed is adjusted to 1200rpm, and the dispersion is carried out for 20 minutes; namely, the A agent is used for the high wear-resistant water-based elastic coating for the surface decoration of the plastic material;
5. adding the curing agent and the diluent into a dispersion cylinder in sequence, and stirring and dispersing for 10 minutes at 800rpm to obtain an agent B for the high-wear-resistance water-based elastic coating for surface decoration of the plastic material;
6. the agent A and the agent B are uniformly mixed according to a certain weight ratio (the weight ratio of the agent A to the agent B is 10:3) to obtain the high-wear-resistance water-based elastic coating for surface decoration of plastic materials.
EXAMPLE III
A high-wear-resistance water-based elastic coating is prepared by stirring and mixing an agent A and an agent B according to a weight ratio of 10: 2. Wherein the agent A consists of the following components: the water-based polyurethane adhesive comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water.
The basic formula of the agent A (100 parts by weight) is as follows:
the agent B is formed by mixing a curing agent and a diluent; the basic formula of the agent B (100 parts by weight) is as follows:
curing agent Bayer 30485 parts
Propylene glycol methyl ether acetate 15 parts
1. Adding the waterborne resins such as the waterborne polycarbonate polyurethane, the waterborne polyether polyurethane, the waterborne hydroxy acrylic acid and the like into a dispersion cylinder according to a proportion, and dispersing for 3 minutes under the stirring of the speed of 800 rpm;
2. sequentially adding deionized water and a neutralizing agent into the dispersion liquid in the step 1 at a stirring speed of 600rpm, dispersing for 3 minutes, and uniformly stirring;
3. sequentially adding the aqueous dispersing agent, the aqueous wetting leveling agent, the aqueous wax slurry and the aqueous thixotropic agent into the dispersion liquid in the step 2 at a stirring speed of 1000rpm, and dispersing for 10 minutes;
4. slowly adding the water-based defoaming agent into the mixture obtained in the step 3 at the stirring speed of 1200rpm, dispersing for 15 minutes, and uniformly stirring; after the addition, the rotating speed is adjusted to 1200rpm, and the dispersion is carried out for 20 minutes; namely, the A agent is used for the high wear-resistant water-based elastic coating for the surface decoration of the plastic material;
5. adding the curing agent and the diluent into a dispersion cylinder in sequence, and stirring and dispersing for 10 minutes at 800rpm to obtain an agent B for the high-wear-resistance water-based elastic coating for surface decoration of the plastic material;
6. the agent A and the agent B are uniformly mixed according to a certain weight ratio (the weight ratio of the agent A to the agent B is 10:2) to obtain the high-wear-resistance water-based elastic coating for surface decoration of plastic materials.
Example four
A high-wear-resistance water-based elastic coating is prepared by stirring and mixing an agent A and an agent B according to a weight ratio of 10: 2. Wherein the agent A consists of the following components: the water-based polyurethane adhesive comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water.
The basic formula of the agent A (100 parts by weight) is as follows:
the agent B is formed by mixing a curing agent and a diluent; the basic formula of the agent B (100 parts by weight) is as follows:
curing agent Bayer 30485 parts
Propylene glycol methyl ether acetate 15 parts
1. Adding the waterborne resins such as the waterborne polycarbonate polyurethane, the waterborne polyether polyurethane, the waterborne hydroxy acrylic acid and the like into a dispersion cylinder according to a proportion, and dispersing for 3 minutes under the stirring of the speed of 800 rpm;
2. sequentially adding deionized water and a neutralizing agent into the dispersion liquid in the step 1 at a stirring speed of 600rpm, dispersing for 3 minutes, and uniformly stirring;
3. sequentially adding the aqueous dispersing agent, the aqueous wetting leveling agent, the aqueous wax slurry and the aqueous thixotropic agent into the dispersion liquid in the step 2 at a stirring speed of 1000rpm, and dispersing for 10 minutes;
4. slowly adding the water-based defoaming agent into the mixture obtained in the step 3 at the stirring speed of 1200rpm, dispersing for 15 minutes, and uniformly stirring; after the addition, the rotating speed is adjusted to 1200rpm, and the dispersion is carried out for 20 minutes; namely, the A agent is used for the high wear-resistant water-based elastic coating for the surface decoration of the plastic material;
5. adding the curing agent and the diluent into a dispersion cylinder in sequence, and stirring and dispersing for 10 minutes at 800rpm to obtain an agent B for the high-wear-resistance water-based elastic coating for surface decoration of the plastic material;
6. the agent A and the agent B are uniformly mixed according to a certain weight ratio (the weight ratio of the agent A to the agent B is 10:2) to obtain the high-wear-resistance water-based elastic coating for surface decoration of plastic materials.
EXAMPLE five
A high-wear-resistance water-based elastic coating is prepared by stirring and mixing an agent A and an agent B according to a weight ratio of 10: 2. Wherein the agent A consists of the following components: the water-based polyurethane adhesive comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water.
The basic formula of the agent A (100 parts by weight) is as follows:
the agent B is formed by mixing a curing agent and a diluent; the basic formula of the agent B (100 parts by weight) is as follows:
curing agent Bayer 30480 parts
Propylene glycol methyl ether acetate 20 parts
1. Adding the waterborne resins such as the waterborne polycarbonate polyurethane, the waterborne polyether polyurethane, the waterborne hydroxy acrylic acid and the like into a dispersion cylinder according to a proportion, and dispersing for 3 minutes under the stirring of the speed of 800 rpm;
2. sequentially adding deionized water and a neutralizing agent into the dispersion liquid in the step 1 at a stirring speed of 600rpm, dispersing for 3 minutes, and uniformly stirring;
3. sequentially adding the aqueous dispersing agent, the aqueous wetting leveling agent, the aqueous wax slurry and the aqueous thixotropic agent into the dispersion liquid in the step 2 at a stirring speed of 1000rpm, and dispersing for 10 minutes;
4. slowly adding the water-based defoaming agent into the mixture obtained in the step 3 at the stirring speed of 1200rpm, dispersing for 15 minutes, and uniformly stirring; after the addition, the rotating speed is adjusted to 1200rpm, and the dispersion is carried out for 20 minutes; namely, the A agent is used for the high wear-resistant water-based elastic coating for the surface decoration of the plastic material;
5. adding the curing agent and the diluent into a dispersion cylinder in sequence, and stirring and dispersing for 10 minutes at 800rpm to obtain an agent B for the high-wear-resistance water-based elastic coating for surface decoration of the plastic material;
6. the agent A and the agent B are uniformly mixed according to a certain weight ratio (the weight ratio of the agent A to the agent B is 10:2) to obtain the high-wear-resistance water-based elastic coating for surface decoration of plastic materials.
The invention develops a high-wear-resistance water-based elastic coating for surface decoration of plastic materials, which avoids the problems of safety and environmental protection caused by harmful organic solvents of solvent-based elastic coatings, and solves the technical problem that the elastic handfeel and wear resistance of plastic cannot be balanced.
The paint of example one, as well as the comparative paint, the current commercial paint, were subjected to parallel experiments, i.e., only the paint was changed and the rest was unchanged, to embody the technical effects unexpected by the present invention.
Coating the coating on an ABS sample plate, baking for 40min at 70 ℃, and forming a coating on the surface of the ABS sample plate, wherein the coating is a plastic material based on the high-wear-resistance water-based elastic coating; the coating thickness of each coating is consistent (20 mu m), the coating formed by the coating of the embodiment of the invention has smooth surface, no defect and flat paint film; performance testing was performed according to conventional procedures and is shown in Table 1.
TABLE 1 results of performance tests of the coatings of the examples of the present invention and of the commercially available coatings (currently used for surface modification of plastics)
Remarking: the hand feeling grades are graded to be 1-4 grades, the grade 1 is worst, the grade 4 is best, 9 experimenters touch the standard samples with the hand feeling of the grade 1, the grade 2, the grade 3 and the grade 4 firstly, then touch the test sample by hands, and judge according to the hand feeling grades given by the 9 people, and in the test, the 9 people judge the hand feeling of all the test products consistently.
The scratch resistance is realized by scraping the instrument back and forth by adopting a cutter simulating the fingernail, the scraping force of each time is consistent, and the daily fingernail scraping with the maximum force is simulated; none of the coatings failed at 20 times, except comparative coating 3 failed at 16 th time.
The matte material is good in matte performance, and through testing, the product is a full matte (the gloss is 0-1 degree); comparative coating 4 was 22 °.
For the plastic surface decorative coating, the RCA resistance is the most critical, fig. 1 is the RCA result after the commercially available coating and the coating of the embodiment of the present invention are used for the plastic surface (template) decoration, and it can be seen that the present invention is remarkably improved, the bottom is not exposed for 100 times (up to 100 times, no test is performed), while the existing coating is slightly exposed for 30 times and worn through for 50 times; and the RCA-resistant times (wear-through) of comparative coatings 1 to 5 were 100 times (98 times is bottom exposure), 50 times, 67 times, 75 times, and 53 times, respectively.
Coating the coating on a normally produced remote controller shell (a biscuit without the coating), baking for 40min at 70 ℃ to form a coating, wherein the coating is a plastic material based on high-wear-resistance water-based elastic coating, the thickness of each coating is consistent (20 mu m), and the coating formed by the coating provided by the embodiment of the invention has a smooth surface, no defect and a flat paint film; the RCA resistance test was performed according to the conventional method (according to table 1), and fig. 2 shows the RCA results of the commercial coating and the coating of the first embodiment of the present invention after being applied to the plastic surface (commercial remote controller), which shows that the present invention is significantly improved, and the substrate is not exposed for 100 times (up to 100 times, no test is performed), while the existing coating is worn through for 50 times.
The invention discloses a high wear-resistant water-based elastic coating which is used for forming a coating on the surface of plastic and is prepared by mixing an agent A of a resin base material part and an agent B of a curing agent part according to a certain proportion. Wherein the agent A consists of the following components: the water-based polyurethane adhesive comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water; the agent B is formed by mixing a curing agent and a diluent. Compared with the prior art, the fully-hydrated dispersion resin is selected as the main connecting material, so that the problem of VOC caused by high solvent volatilization of the oily elastic coating is solved, the VOC content of the system is less than 200 g/L, and the national environmental protection VOC control requirement is met; the problem that the wear resistance and the hand feeling cannot be achieved simultaneously is solved through the matching design of the water-based resins with different characteristics, the balance of the wear resistance and the hand feeling is realized by combining the addition of the auxiliary agent, the soft and smooth hand feeling can be met, and meanwhile, the high wear resistance can be met (RCA can reach 100 times, and the hand feeling grade is 4).
Claims (10)
1. The plastic material based on the high wear-resistant water-based elastic coating consists of a plastic substrate and a coating on the surface of the plastic substrate; the coating is prepared from a high-wear-resistance water-based elastic coating; the high wear-resistant water-based elastic coating comprises an agent A and an agent B; the agent A comprises water-based polycarbonate polyurethane, water-based polyether polyurethane, water-based hydroxy acrylic acid, a neutralizing agent, a water-based dispersing agent, a water-based wetting and leveling agent, a water-based defoaming agent, a water-based thixotropic agent, water-based wax slurry and deionized water; the agent B comprises a curing agent and a diluent.
2. The plastic material based on the high wear-resistant aqueous elastic coating material as claimed in claim 1, wherein the aqueous polycarbonate polyurethane, the aqueous polyether polyurethane and the aqueous hydroxy acrylic acid are stirred, then the deionized water and the neutralizing agent are added, the aqueous dispersing agent, the aqueous wetting and leveling agent, the aqueous wax slurry and the aqueous thixotropic agent are added after stirring, the aqueous defoaming agent is added after stirring, and the agent A is obtained after stirring; and stirring the curing agent and the diluent to obtain the agent B.
3. The plastic material based on the high wear-resistant water-based elastic coating as claimed in claim 2, wherein the stirring speed is 600-1200 rpm, and the stirring time is 3-30 minutes.
4. The plastic material based on the high wear-resistant water-based elastic coating as claimed in claim 1, wherein the weight ratio of the agent A to the agent B is 10: 2-3; the hydroxyl value of the water-based polycarbonate polyurethane resin is 30-50 mgKOH \ g; the hydroxyl value of the water-based hydroxyl acrylic acid is 80-120 mgKOH/g.
5. The plastic material based on the high wear-resistant water-based elastic coating as claimed in claim 1, wherein the agent A comprises the following raw materials in parts by weight, based on 100 parts by weight of the agent A:
6. the plastic material based on the high wear-resistant water-based elastic coating as claimed in claim 1, wherein the mass percentage of the curing agent in the agent B is 80-85%.
7. The preparation method of the plastic material based on the high-wear-resistance water-based elastic coating is characterized by comprising the following steps of:
(1) stirring water-based polycarbonate polyurethane, water-based polyether polyurethane and water-based hydroxy acrylic acid, adding deionized water and a neutralizing agent, stirring, adding a water-based dispersing agent, a water-based wetting and leveling agent, water-based wax slurry and a water-based thixotropic agent, stirring, adding a water-based defoaming agent, and stirring to obtain an agent A; stirring the curing agent and the diluent to obtain a B agent; mixing the agent A and the agent B to form the high-wear-resistance water-based elastic coating;
(2) and (3) coating the high-wear-resistance water-based elastic coating on the surface of the plastic substrate, and curing to obtain the plastic material based on the high-wear-resistance water-based elastic coating.
8. The method for preparing the plastic material based on the high wear-resistant water-based elastic coating as claimed in claim 7, wherein the curing is heating at 60-80 ℃ for 30-50 minutes.
9. Use of a plastic material based on a highly abrasion resistant aqueous elastomeric coating according to claim 1 for the preparation of coated plastics.
10. Use according to claim 9, wherein the coating has wear resistance and elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926389.8A CN112029400A (en) | 2020-09-07 | 2020-09-07 | Plastic material based on high-wear-resistance water-based elastic coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926389.8A CN112029400A (en) | 2020-09-07 | 2020-09-07 | Plastic material based on high-wear-resistance water-based elastic coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112029400A true CN112029400A (en) | 2020-12-04 |
Family
ID=73583873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010926389.8A Pending CN112029400A (en) | 2020-09-07 | 2020-09-07 | Plastic material based on high-wear-resistance water-based elastic coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112029400A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113185908A (en) * | 2021-06-18 | 2021-07-30 | 河北三棵树涂料有限公司 | High-performance reflective heat-insulation water-based exterior wall elastic coating and preparation method thereof |
| CN114045105A (en) * | 2021-11-30 | 2022-02-15 | 苏州市贝特利高分子材料股份有限公司 | Water-based paint for keyboard and preparation method thereof |
| WO2022048065A1 (en) * | 2020-09-07 | 2022-03-10 | 苏州市贝特利高分子材料股份有限公司 | Highly wear-resistant water-based elastomeric coating for surface decoration of plastic materials |
| IT202100009785A1 (en) * | 2021-04-19 | 2022-10-19 | Sherwin Williams Italy S R L | COATING WITH LOW GLOSSY ACRYLIC BINDER |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101292001A (en) * | 2005-09-14 | 2008-10-22 | Ppg工业俄亥俄公司 | Multi-component, waterborne coating compositions, related coatings and methods |
| CN108608709A (en) * | 2018-05-17 | 2018-10-02 | 天长市正牧铝业科技有限公司 | A kind of baseball bat handle sizing material |
| CN109054618A (en) * | 2018-07-19 | 2018-12-21 | 张家港市东方高新聚氨酯有限公司 | A kind of aqueous matt surface inorganic agent of skin sense no-solvent polyurethane from delustring |
| CN110054941A (en) * | 2018-01-17 | 2019-07-26 | 科思创德国股份有限公司 | Monocomponent waterborne polyurethane coating composition and preparation method thereof |
| US20190367769A1 (en) * | 2017-01-19 | 2019-12-05 | Sun Chemical Corporation | Waterborne polyurethane coatings |
-
2020
- 2020-09-07 CN CN202010926389.8A patent/CN112029400A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101292001A (en) * | 2005-09-14 | 2008-10-22 | Ppg工业俄亥俄公司 | Multi-component, waterborne coating compositions, related coatings and methods |
| US20190367769A1 (en) * | 2017-01-19 | 2019-12-05 | Sun Chemical Corporation | Waterborne polyurethane coatings |
| CN110054941A (en) * | 2018-01-17 | 2019-07-26 | 科思创德国股份有限公司 | Monocomponent waterborne polyurethane coating composition and preparation method thereof |
| CN108608709A (en) * | 2018-05-17 | 2018-10-02 | 天长市正牧铝业科技有限公司 | A kind of baseball bat handle sizing material |
| CN109054618A (en) * | 2018-07-19 | 2018-12-21 | 张家港市东方高新聚氨酯有限公司 | A kind of aqueous matt surface inorganic agent of skin sense no-solvent polyurethane from delustring |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022048065A1 (en) * | 2020-09-07 | 2022-03-10 | 苏州市贝特利高分子材料股份有限公司 | Highly wear-resistant water-based elastomeric coating for surface decoration of plastic materials |
| IT202100009785A1 (en) * | 2021-04-19 | 2022-10-19 | Sherwin Williams Italy S R L | COATING WITH LOW GLOSSY ACRYLIC BINDER |
| WO2022225772A1 (en) * | 2021-04-19 | 2022-10-27 | Swimc Llc | Low-gloss acrylic-pud coating |
| CN113185908A (en) * | 2021-06-18 | 2021-07-30 | 河北三棵树涂料有限公司 | High-performance reflective heat-insulation water-based exterior wall elastic coating and preparation method thereof |
| CN114045105A (en) * | 2021-11-30 | 2022-02-15 | 苏州市贝特利高分子材料股份有限公司 | Water-based paint for keyboard and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112029400A (en) | Plastic material based on high-wear-resistance water-based elastic coating | |
| CN107810244B (en) | Aqueous coating composition | |
| CN112011203A (en) | High-wear-resistance water-based elastic coating for surface decoration of plastic material | |
| CN110922874B (en) | Water-based acrylic polyurethane amino baking pearlescent paint and preparation method thereof | |
| CN107892758B (en) | Aqueous soft touch coating composition and abrasion resistant coating formed therefrom | |
| CN105385336A (en) | Velvet anti-scratch waterborne polyurethane paint | |
| CN110845921A (en) | Water-based high-performance coating for plastic | |
| CN109836988B (en) | Water-based chameleon solvent-resistant elastic coating paint | |
| CN109207047B (en) | Special super-sub-skin-feel wear-resistant water-based paint for PVC (polyvinyl chloride) surface decoration and preparation method thereof | |
| CN109486393B (en) | Special high-gloss anti-fouling wear-resistant water-based paint for PVC surface decoration and preparation method thereof | |
| CN110922806A (en) | Water-based high-transparency filler for woodware and preparation method thereof | |
| CN113248999A (en) | Recyclable water-based double-component white finish suitable for mechanical spraying and preparation method thereof | |
| CN103436156A (en) | Modified polyurethane scratch-resistant matte transparent finish paint applicable to American coating process, and preparation method of transparent finish paint | |
| CN114292575A (en) | Boiling-resistant sunscreen cream-resistant waterborne polyurethane coating for automotive interior and preparation method and use method thereof | |
| CN113604143A (en) | Two-component waterborne polyurethane scratch-resistant wear-resistant PVC coating and preparation method thereof | |
| KR100629766B1 (en) | Coating composition for interior panel of automobile | |
| CN106675262A (en) | Safe eco-friendly waterborne hot foil die-stamping primer used for plastic part and preparation method of primer | |
| CN114539890A (en) | Velvet paint and preparation method thereof | |
| CN107189614B (en) | Water-based crack paint and preparation method thereof | |
| CN113402959A (en) | Anti-scratch polyurethane matte coating and preparation method thereof | |
| CN112745710A (en) | Waterborne antibacterial super-matte scratch-resistant gloss oil applied to PVC (polyvinyl chloride) film and preparation method thereof | |
| CN114045105B (en) | Water-based paint for keyboard and preparation method thereof | |
| CN114133800B (en) | Stain-resistant colorful artistic coating with mosaic-like effect and preparation method and application thereof | |
| CN105462313A (en) | High-stain-resistance elastic and round-shaped broom-finish emulsion paint and preparation method thereof | |
| CN115746643A (en) | High-permeability double-component primer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201204 |