CN107254249A - A kind of high rigidity powdery paints, preparation method and applications - Google Patents
A kind of high rigidity powdery paints, preparation method and applications Download PDFInfo
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- CN107254249A CN107254249A CN201710618240.1A CN201710618240A CN107254249A CN 107254249 A CN107254249 A CN 107254249A CN 201710618240 A CN201710618240 A CN 201710618240A CN 107254249 A CN107254249 A CN 107254249A
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- high rigidity
- parts
- powdery paints
- rigidity powdery
- appearance member
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- 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
- C09D175/06—Polyurethanes from polyesters
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Abstract
The invention discloses a kind of high rigidity powdery paints, include the component of following parts by weight：20 25 parts of polyurethane resin；5 10 parts of polyester resin；25 30 parts of carbimide dimer；5.5 7.5 parts of auxiliary agent；1.4 7 parts of pigment；25 38 parts of filler.The invention also discloses a kind of preparation method of the high rigidity powdery paints, comprise the following steps：20 25 parts of polyurethane resins, 5 10 parts of polyester resin, 25 30 parts of carbimide dimers, 5.5 7.5 parts of auxiliary agents, 1.4 7 parts of pigment and 25 38 parts of fillers are well mixed, melting extrusion, tabletting, cooling, then coarse crushing and levigate crushing are carried out successively, and the high rigidity powdery paints is obtained after screening.The high rigidity powdery paints of the present invention is outstanding for the hardness performance of base material, the adhesive force of high rigidity powdery paints and base material reach it is best, for base material adhesive property is good, hardness performance is good, with good scratch-resistant effect.
Description
Technical field
The invention belongs to technical field of coatings, it is related to a kind of high rigidity powdery paints, preparation method and applications.
Background technology
The appearance member of the open air such as sports equipment, outdoor building curtain wall, outdoor location guardrail board article is for a long time exposed to open air
In environment, easily caused to scrape by external influence, in turn result in the scratch of film coated surface, both influenceed U.S. of appearance member
See, the destruction of coating is easily caused again, and then the performance of appearance member is impacted.
Traditional powder coating covering appearance piece surface formation coating, coating is using once spraying, the technique system of one-pass film-forming
Be 60-120um into, thickness, coating is big to the adhesion strength of base material, water absorption rate is small, resistance to elevated temperatures good, impact resistance, pliability
It is good, but there is the relatively low defect of hardness.Coat traditional powder coating coating in use, because external force wear and tear or scrape
When can have a strong impact on appearance and service life.Especially, the aesthetic feeling and service life of appearance member are increasingly taken seriously, more
Plus in the urgent need to overcoming the defect.
In view of this, it is desirable to provide a kind of new high rigidity powdery paints, ensure coating for base material adhesive force,
On the premise of resistance to elevated temperatures, painting film integrality, hardness performance is improved, good scratch-resistant effect is reached.
The content of the invention
In order to overcome the defect that above-mentioned prior art is present, first purpose of the invention is to provide a kind of high rigidity powder
Coating, makes the hardness performance of paint coatings good.
It is a further object to provide a kind of preparation method of the high rigidity powdery paints.
It is also another object of the present invention to provide the purposes that a kind of high rigidity powdery paints is used for appearance member.
To achieve these goals, the technical solution adopted by the present invention is as follows：
One aspect of the present invention provides a kind of high rigidity powdery paints, includes the component of following parts by weight：
The glass transition temperature (Tg) of the polyurethane resin is 45~55 DEG C, preferably 50 DEG C, poly- ammonia in the embodiment of the present invention
Ester resin is the Uralac P1580 of the emerging resin of Supreme Being (Kunshan) Co., Ltd.
The glass transition temperature (Tg) of the polyester resin is 45~55 DEG C, preferably 50 DEG C, polyester tree in the embodiment of the present invention
Fat is the REAFREE 17091 of the emerging resin of Supreme Being (Kunshan) Co., Ltd.
The NCO total amounts (isocyanate groups gross mass) of the carbimide dimer are 15.2 ± 0.5%, and the present invention is real
Apply the uretdione B1530 (powder) that carbimide dimer in example creates Degussa (Evonik degussa) for win.
Preferably, the auxiliary agent includes the component of following parts by weight：
It is highly preferred that preferably 5 parts of the levelling agent.
The levelling agent is the GLP599 of Ningbo South-sea Chemical Co., Ltd..
The styrax systematic naming method is 2- hydroxyl -1,2- diphenylethans, is Ningbo South-sea Chemical Co., Ltd. or south
The styrax of Tong Jingyuan pharmaceutcal corporation, Ltds.
The catalyst is the ST-70 urethane catalysts of Shanghai Heng Xiang chemical materials Co., Ltd.
The drier creates the aluminum oxide C (AEROSIL Alu C) of Degussa (Evonik degussa) to win.
The scratch resistance auxiliary agent is the MC-100 (JTC305S) of upper Hisense Li Tai Chemical Industry Science Co., Ltd, or Nanjing day
The PTFE0101 of poem new material Science and Technology Ltd..
The pigment is at least one of titanium dioxide or carbon black, and titanium dioxide uses the R902 of Chemical Co., Ltd. of Du Pont,
The carbon black uses the FW200 for winning wound Degussa.
The filler is barium sulfate, for the ON310 of upper Hisense Li Tai Chemical Industry Science Co., Ltd, or the prosperous city mining industry in Guizhou
The W44HD of Co., Ltd.
Another aspect of the present invention provides a kind of preparation method of the high rigidity powdery paints, including following step
Suddenly：
20-25 parts of polyurethane resins, 5-10 parts of polyester resin, 25-30 parts of carbimide dimers, 5.5-7.5 parts are helped
Agent, 1.4-7 parts of pigment and 25-38 parts of fillers are well mixed, and then melting extrusion, tabletting, cooling carries out coarse crushing and mill successively
It is finely divided, the high rigidity powdery paints is obtained after screening.
The temperature of the melting extrusion is 95-105 DEG C.
The particle diameter of the high rigidity powdery paints is 25-80 μm.
A kind of purposes of the another aspect of the invention there is provided high rigidity powdery paints for appearance member, including with
Lower step：
By the surface treatment of appearance member, the high rigidity powdery paints is sprayed, then toasts, cool down, coating is obtained and carries out
Performance test.
The temperature of the baking is 190-220 DEG C, and the time is 10~20min, and Baking out uses high frequency coil, natural gas
Stove, biologic grain stove or diesel oil stove heat.
The appearance member is aluminum veneer appearance member.
By adopting the above-described technical solution, the present invention has advantages below and beneficial effect：
The high rigidity powdery paints of the present invention is outstanding for the hardness performance of base material, high rigidity powdery paints and base material it is attached
Put forth effort to reach it is best, for base material adhesive property is good, hardness performance is good, with good scratch-resistant effect, it is to avoid because applying
Layer is scraped and caused occurring for the bad problem of performance of coating by external force；, can be in existing outdoor powder when being applied to appearance member
Carried out on the basis of product spraying coating process, do not change in-situ spraying technique；The coating of the high rigidity powdery paints of the present invention is carried out
Hardness test, as a result shows that the product can reach pencil hardness 4H (by GB/T 6,379 2006), the hardness performance of coating is good.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the preparation method of the high rigidity powdery paints of the present invention；And
Fig. 2 is used for the schematic flow sheet of the purposes of appearance member for the high rigidity powdery paints of the present invention.
Embodiment
In order to illustrate more clearly of the present invention, with reference to preferred embodiment, the present invention is described further.Ability
Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, and this should not be limited with this
The protection domain of invention.
In the case of being clear from, being explained to the purpose of the present invention by following examples, the component of the composition
Released bright using parts by weight as the universal standard.In the case of without special instruction, for simplicity, institute in the embodiment of the present invention
" part " stated has identical meaning with parts by weight.
In the citing being further clear to the present invention by the following examples, the glass transition temperature of polyurethane resin
For 45~55 DEG C, preferably 50 DEG C, polyurethane resin is the Uralac of the emerging resin of Supreme Being (Kunshan) Co., Ltd in the embodiment of the present invention
P1580。
In the citing being further clear to the present invention by the following examples, the glass transition temperature of polyester resin is
45~55 DEG C, preferably 50 DEG C, polyester resin is the REAFREE of the emerging resin of Supreme Being (Kunshan) Co., Ltd in the embodiment of the present invention
17091。
In the citing being further clear to the present invention by the following examples, the NCO of carbimide dimer is total
It is 15.2 ± 0.5% to measure (weight), and carbimide dimer is wins wound Degussa (Evonik in the embodiment of the present invention
Degussa uretdione B1530 (powder)).
In the citing being further clear to the present invention by the following examples, levelling agent is that Ningbo South Sea chemistry has
The GLP599 of limit company；Styrax systematic naming method be 2- hydroxyl -1,2- diphenylethans, be Ningbo South-sea Chemical Co., Ltd. or
The styrax of Nantong Jing Yuan pharmaceutcal corporation, Ltds；Catalyst is urged for the ST-70 polyurethanes of Shanghai Heng Xiang chemical materials Co., Ltd
Agent；Drier creates the aluminum oxide C (AEROSIL Alu C) of Degussa (Evonik degussa) to win；Scratch resistance auxiliary agent is
The MC-100 (JTC305S) of upper Hisense Li Tai Chemical Industry Science Co., Ltd, or Nanjing Tianshi New Material Technologies Co., Ltd.
PTFE0101。
In the citing being further clear to the present invention by the following examples, filler is barium sulfate, for upper Hisense
The ON310 of Li Tai Chemical Industry Science Co., Ltd, or Guizhou Xin Cheng mining industry Co., Ltd W44HD.
In the citing being further clear to the present invention by the following examples, pigment is in titanium dioxide or carbon black
At least one, titanium dioxide uses the R902 of Chemical Co., Ltd. of Du Pont；Carbon black uses the FW200 for winning wound Degussa.
In the citing being further clear to the present invention by the following examples, appearance member is aluminum veneer appearance member,
Simultaneously suitable for other outdoor aluminum components, aluminum veneer appearance member is preferably outdoor stadium outward appearance aluminum veneer, high rigidity powdery paints
Suitable for the outdoor environment that operating temperature is -25 DEG C -50 DEG C.
Embodiment 1
A kind of high rigidity powdery paints, includes the component of following parts by weight：
As shown in figure 1, schematic flow sheets of the Fig. 1 for the preparation method of the high rigidity powdery paints of the present invention.First, according to
The formula composition of the high rigidity powder coating component is accurate to weigh raw material, and it is equal to cross rotation mixing at a high speed in premixing tank back warp
Well mixed raw material, are then at the uniform velocity put into double screw extruder, in 95-105 DEG C of condition by even (doing time in advance 5-10 minutes)
Lower melting extrusion, tablet is rolled into by cooling, and after tablet is cooled down under natural temperature, tablet is slightly broken using pulverizer
It is broken, levigate crushing is carried out using pulverizer after obtained material cooling, is sieved using 180 eye mesh screens, the sieving of 180 eye mesh screens
Screening natural cooling, finally obtain the high rigidity powdery paints of uniform particle sizes' (25-45 μm).
As shown in Fig. 2 Fig. 2 is used for the schematic flow sheet of the purposes of appearance member for the high rigidity powdery paints of the present invention.Will
Aluminum veneer carries out oil removing (or carrying out other pre-treatments such as silane treatment), is sprayed in dust free room, and drying tunnel is entered afterwards and is carried out
Baking, the temperature of baking is 190-220 DEG C, and the time is 10~20min, and Baking out is heated using high frequency coil；It is to be coated to fill
Divide natural cooling after solidification.Coating aluminum veneer spraying method as normal aluminum veneer spraying method, process data such as table 1
It is shown：
Table 1
As shown in table 2, adhesive force test and pencil hardness result of the table 2 for the high rigidity powdery paints coating of the present invention.
Adhesive force test is carried out to coating, two interlayers can be with 100/100 attachment.Hardness test is carried out to the coating, highest can reach
To pencil hardness 4H (pressing GB/T 6,379 2006), illustrate the coating hardness excellent performance.
Table 2
| Test content | Test result | Test result |
| Adhesive force is tested | 0 grade | Test passes through |
| 1H pencil hardness tests | It is not plastically deformed or cohesional failure | Test passes through |
| 2H pencil hardness tests | It is not plastically deformed or cohesional failure | Test passes through |
| 3H pencil hardness tests | It is not plastically deformed or cohesional failure | Test passes through |
| 4H pencil hardness tests | It is not plastically deformed or cohesional failure | Test passes through |
| 5H pencil hardness tests | There is plastic deformation | Test does not pass through |
Embodiment 2
A kind of high rigidity powdery paints, includes the component of following parts by weight：
First, according to the accurate weighing raw material of formula composition of the high rigidity powder coating component, in premixing tank
Well mixed (doing time in advance 5-10 minutes) is rotated by high speed, well mixed raw material are at the uniform velocity then put into twin-screw extrusion
Machine, the melting extrusion under the conditions of 95-105 DEG C is rolled into tablet by cooling, after tablet is cooled down under natural temperature, uses powder
Broken machine carries out coarse crushing to tablet, carries out levigate crushing using pulverizer after obtained material cooling, is carried out using 180 eye mesh screens
Screening, the screening natural cooling of 180 eye mesh screens sieving, the high rigidity powder for finally obtaining uniform particle sizes' (26-70 μm) is applied
Material.
The high rigidity powdery paints of the present embodiment is used as the purposes of appearance member, comprises the following steps：
By aluminum veneer carry out oil removing (or carrying out other pre-treatments such as silane treatment), sprayed in dust free room, it is laggard
Enter drying tunnel to be toasted, the temperature of baking is 190-220 DEG C, and the time is 10~20min, and Baking out is added using high frequency coil
Heat；Natural cooling after abundant solidification to be coated.
Hardness test is carried out to the coating, highest can reach pencil hardness 4H (by GB/T 6,379 2006), explanation
The coating hardness excellent performance.
Embodiment 3
A kind of high rigidity powdery paints, includes the component of following parts by weight：
First, according to the accurate weighing raw material of formula composition of the high rigidity powder coating component, in premixing tank
Well mixed (doing time in advance 5-10 minutes) is rotated by high speed, well mixed raw material are at the uniform velocity then put into twin-screw extrusion
Machine, the melting extrusion under the conditions of 95-105 DEG C is rolled into tablet by cooling, after tablet is cooled down under natural temperature, uses powder
Broken machine carries out coarse crushing to tablet, carries out levigate crushing using pulverizer after obtained material cooling, is carried out using 180 eye mesh screens
Screening, the screening natural cooling of 180 eye mesh screens sieving, the high rigidity powder for finally obtaining uniform particle sizes' (26-70 μm) is applied
Material.
The high rigidity powdery paints of the present embodiment is used as the purposes of appearance member, comprises the following steps：
By aluminum veneer carry out oil removing (or carrying out other pre-treatments such as silane treatment), sprayed in dust free room, it is laggard
Enter drying tunnel to be toasted, the temperature of baking is 190-220 DEG C, and the time is 10~20min, and Baking out is added using high frequency coil
Heat；Natural cooling after abundant solidification to be coated.
Hardness test is carried out to coating, highest can reach pencil hardness 4H (by GB/T 6,379 2006), illustrate described
Coating hardness excellent performance.
Embodiment 4
A kind of high rigidity powdery paints, includes the component of following parts by weight：
First, according to the accurate weighing raw material of formula composition of the high rigidity powder coating component, in premixing tank
Well mixed (doing time in advance 5-10 minutes) is rotated by high speed, well mixed raw material are at the uniform velocity then put into twin-screw extrusion
Machine, the melting extrusion under the conditions of 95-105 DEG C is rolled into tablet by cooling, after tablet is cooled down under natural temperature, uses powder
Broken machine carries out coarse crushing to tablet, carries out levigate crushing using pulverizer after obtained material cooling, is carried out using 180 eye mesh screens
Screening, the screening natural cooling of 180 eye mesh screens sieving, the high rigidity powder for finally obtaining uniform particle sizes' (26-70 μm) is applied
Material.
The high rigidity powdery paints of the present embodiment is used as the purposes of appearance member, comprises the following steps：
By aluminum veneer carry out oil removing (or carrying out other pre-treatments such as silane treatment), sprayed in dust free room, it is laggard
Enter drying tunnel to be toasted, the temperature of baking is 190-220 DEG C, and the time is 10~20min, and Baking out is added using high frequency coil
Heat；Natural cooling after abundant solidification to be coated.
Hardness test is carried out to coating, highest can reach pencil hardness 4H (by GB/T 6,379 2006), illustrate described
Coating hardness excellent performance.
Embodiment 5
A kind of high rigidity powdery paints, includes the component of following parts by weight：
First, according to the accurate weighing raw material of formula composition of the high rigidity powder coating component, in premixing tank
Well mixed (doing time in advance 5-10 minutes) is rotated by high speed, well mixed raw material are at the uniform velocity then put into twin-screw extrusion
Machine, the melting extrusion under the conditions of 95-105 DEG C is rolled into tablet by cooling, after tablet is cooled down under natural temperature, uses powder
Broken machine carries out coarse crushing to tablet, carries out levigate crushing using pulverizer after obtained material cooling, is carried out using 180 eye mesh screens
Screening, the screening natural cooling of 180 eye mesh screens sieving, the high rigidity powder for finally obtaining uniform particle sizes' (26-70 μm) is applied
Material.
The high rigidity powdery paints of the present embodiment is used as the purposes of appearance member, comprises the following steps：
By aluminum veneer carry out oil removing (or carrying out other pre-treatments such as silane treatment), sprayed in dust free room, it is laggard
Enter drying tunnel to be toasted, the temperature of baking is 190-220 DEG C, and the time is 10~20min, and Baking out is added using high frequency coil
Heat；Natural cooling after abundant solidification to be coated.
Hardness test is carried out to coating, highest can reach pencil hardness 4H (by GB/T 6,379 2006), illustrate described
Coating hardness excellent performance.
Embodiment 6
A kind of high rigidity powdery paints, includes the component of following parts by weight：
First, according to the accurate weighing raw material of formula composition of the high rigidity powder coating component, in premixing tank
Well mixed (doing time in advance 5-10 minutes) is rotated by high speed, well mixed raw material are at the uniform velocity then put into twin-screw extrusion
Machine, the melting extrusion under the conditions of 95-105 DEG C is rolled into tablet by cooling, after tablet is cooled down under natural temperature, uses powder
Broken machine carries out coarse crushing to tablet, carries out levigate crushing using pulverizer after obtained material cooling, is carried out using 180 eye mesh screens
Screening, the screening natural cooling of 180 eye mesh screens sieving, the high rigidity powder for finally obtaining uniform particle sizes' (26-70 μm) is applied
Material.
The high rigidity powdery paints of the present embodiment is used as the purposes of appearance member, comprises the following steps：
By aluminum veneer carry out oil removing (or carrying out other pre-treatments such as silane treatment), sprayed in dust free room, it is laggard
Enter drying tunnel to be toasted, the temperature of baking is 190-220 DEG C, and the time is 10~20min, and Baking out is added using high frequency coil
Heat；Natural cooling after abundant solidification to be coated.
Hardness test is carried out to coating, highest can reach pencil hardness 4H (by GB/T 6,379 2006), illustrate described
Coating hardness excellent performance.
Such as polyurethane resin consumption, (19 parts or lower) or reduction carbimide dimer are arrived below 20 parts in the present invention
Less than 25 parts (24 parts or lower), can cause the hardness performance of coating after baking to decline, it is impossible to meet pencil hardness and reach 4H's
It is required that, the too high levels of the component of the above two can cause cost to increase.
The present invention is by selecting suitable raw material and raw material proportioning so that the adhesive force of paint coatings and base material reaches most
It is good, coating for base material adhesive property is good, hardness performance is good.When each component raw material dosage is very few, then adhesive force and durometer properties
It can be affected, if excessive cost can increase and influence its durometer properties.
The high rigidity powdery paints of the present invention is outstanding for the hardness performance of base material, high rigidity powdery paints and base material it is attached
Put forth effort to reach it is best, for base material adhesive property is good, hardness performance is good, with good scratch-resistant effect, it is to avoid because applying
Layer is scraped and caused occurring for the bad problem of performance of coating by external force；, can be in existing outdoor powder when being applied to appearance member
Carried out on the basis of product spraying coating process, do not change in-situ spraying technique；The coating of the high rigidity powdery paints of the present invention is carried out
Hardness test, as a result shows that the product can reach pencil hardness 4H (by GB/T 6,379 2006), the hardness performance of coating is good.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, the embodiment that the present invention is enumerated can not give all embodiments thoroughly
To the greatest extent, it is every to belong to obvious changes or variations that technical scheme extends out still in protection model of the invention
The row enclosed.All documents referred in the present invention are all incorporated as reference in this application, independent just as a document
It is cited as with reference to such.
Claims (10)
1. a kind of high rigidity powdery paints, it is characterised in that：Include the component of following parts by weight：
2. high rigidity powdery paints according to claim 1, it is characterised in that：The glass transition temperature of the polyurethane resin
(Tg) it is 45~55 DEG C；
The glass transition temperature of the polyester resin is 45~55 DEG C.
3. high rigidity powdery paints according to claim 1, it is characterised in that：The NCO of the carbimide dimer is total
Measure as 15.2 ± 0.5%.
4. high rigidity powdery paints according to claim 1, it is characterised in that：The auxiliary agent includes the group of following parts by weight
Point：
5. high rigidity powdery paints according to claim 4, it is characterised in that：The levelling agent is 5 parts；
The catalyst is urethane catalyst.
6. high rigidity powdery paints according to claim 1, it is characterised in that：The pigment is in titanium dioxide or carbon black
It is at least one；The filler is barium sulfate.
7. a kind of preparation method of the high rigidity powdery paints described in any one of claim 1 to 6, it is characterised in that：Including with
Lower step：
By 20-25 parts of polyurethane resins, 5-10 parts of polyester resin, 25-30 parts of carbimide dimers, 5.5-7.5 parts of auxiliary agents,
1.4-7 parts of pigment and 25-38 parts of fillers are well mixed, melting extrusion, tabletting, cooling, coarse crushing are then carried out successively and levigate
Crush, the high rigidity powdery paints is obtained after screening.
8. the preparation method of high rigidity powdery paints according to claim 7, it is characterised in that：The temperature of the melting extrusion
Spend for 95-105 DEG C；
The particle diameter of the high rigidity powdery paints is 25-80 μm.
9. the high rigidity powdery paints described in a kind of any one of claim 1 to 6 is used for the purposes of appearance member, it is characterised in that：
Comprise the following steps：
By the surface treatment of appearance member, the high rigidity powdery paints is sprayed, then toasts, cool down, coating is obtained and carries out performance
Test.
10. purposes according to claim 9, it is characterised in that：The temperature of the baking is 190-220 DEG C, and the time is 10
~20min, Baking out uses high frequency coil, gas furnace, biologic grain stove or diesel oil stove heat；
The appearance member is aluminum veneer appearance member.
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| CN201710618240.1A CN107254249B (en) | 2017-07-26 | 2017-07-26 | High-hardness powder coating, preparation method and application thereof |
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| CN201710618240.1A CN107254249B (en) | 2017-07-26 | 2017-07-26 | High-hardness powder coating, preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704853A (en) * | 2020-07-07 | 2020-09-25 | 江南载福粉末涂料（张家港）有限公司 | Ultrahigh-hardness scratch-resistant powder coating |
| CN112454790A (en) * | 2020-11-25 | 2021-03-09 | 德清县金秋塑粉有限公司 | Powder coating production process and production line thereof |
| CN112661408A (en) * | 2020-12-28 | 2021-04-16 | 立丰家庭用品（南京）有限公司 | Electrostatic enamel powder, preparation method of electrostatic enamel powder and preparation device of electrostatic enamel powder |
| WO2022062402A1 (en) * | 2020-09-24 | 2022-03-31 | 浙江华彩新材料有限公司 | High-hardness easy-to-clean powder coating and preparation method therefor |
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|---|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112454790A (en) * | 2020-11-25 | 2021-03-09 | 德清县金秋塑粉有限公司 | Powder coating production process and production line thereof |
| CN112454790B (en) * | 2020-11-25 | 2022-01-14 | 德清县金秋塑粉有限公司 | Powder coating production process and production line thereof |
| WO2022110735A1 (en) * | 2020-11-25 | 2022-06-02 | 德清县金秋塑粉有限公司 | Powder coating production process and production line thereof |
| CN112661408A (en) * | 2020-12-28 | 2021-04-16 | 立丰家庭用品（南京）有限公司 | Electrostatic enamel powder, preparation method of electrostatic enamel powder and preparation device of electrostatic enamel powder |
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