CN108300181A - A kind of powder slurry of stabilization and its preparation method and application - Google Patents
A kind of powder slurry of stabilization and its preparation method and application Download PDFInfo
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- CN108300181A CN108300181A CN201610864481.XA CN201610864481A CN108300181A CN 108300181 A CN108300181 A CN 108300181A CN 201610864481 A CN201610864481 A CN 201610864481A CN 108300181 A CN108300181 A CN 108300181A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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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
- 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
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
- C09J167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The present invention provides a kind of powder slurry of stabilization, is prepared by solid phase powder component A and liquid phase component B；The component A includes polyester resin；The component B includes water and aqueous promoter；The component A accounts for the 55 90% of powder slurry gross mass, and the component B accounts for the 10 45% of powder slurry gross mass；Polyester resin in the component A is saturation or unsaturated polyester (UP), and the polyester resin accounts for the 25 60% of component A gross masses, and the number-average molecular weight of the polyester resin is 1000 10000g/mol；The acid value of the polyester resin is 25 75mgKOH/g；The mass ratio of the polyester resin and water is：Polyester resin：Water=(0.3 12)：1.The preparation method and purposes of powder slurry are also provided.The powder slurry of the present invention has good bin stability, influenced by ambient temperature small, under room temperature stationary state, can store 1 year or more.
Description
Technical field
The invention belongs to paint spraying fields, and in particular to a kind of powder slurry of stabilization includes this powder slurry
Preparation method and purposes.
Background technology
The technology of modern coatings industry develops, and all concentrates on research and pollutes low, environment-friendly type coating, such as is now common
Powdery paints and water paint.But there is paint line investments that big, coating thickness is not easy reduces, powder pollution for powdery paints
Problem；Water paint has certain risk due to usually containing a large amount of cosolvent, and there are solid contents relatively low, globality
Energy disadvantage on the weak side.Early in the 70-80 ages in 20th century, the water for combining the respective advantage of powdery paints and water paint is had developed
Property powder suspensoid, also referred to as powder slurry, advantage are embodied in：1) volatile vehicle only has individual water；2) curing
The by-product to volatilize in journey is safe from danger or nontoxic；3) spray, leaching or roller coating equipment construction can be used.
The Cray Calley Products companies and Ciba-Geigy companies for originally developing powder slurry are epoxy/polyesters
System, but since the stabilization of powder slurry system is very high to the requirement of epoxy kind, be not rapidly developed.In the recent period, a variety of
The powder slurry (aqueous powder paint dispersions) of resin system is gradually developed and openly：P19518392.4 etc. discloses ring
Oxygen/polyester system, but there are certain defects for weatherability, levelability；CN96198627.1 discloses epoxy/epoxy acrylic
System；CN200480030162.4 discloses a kind of dual cure systems of photocuring/heat cure, is the poly- ammonia with double bond structure
Ester system；CN200680041867.5 discloses the polymorphic type resin system of photocuring；Including epoxy acrylate system, poly- ammonia
Ester acrylatcs systems, rigid system etc.；CN104411742A discloses polyamide resin resin system, is applicable to
Macromolecule polyamide prepares powder slurry；CN102838845A disclose epoxy-resin systems can water redispersion powders,
Having good stability after dispersion；What CN105061656A disclosed end carboxyl polyvinyl resin system can water redisperse powder
End.These different resin system powder slurries have respective application range.
With the development of powdery paints, the powdery paints based on terminal carboxyl polyester resin becomes mainstream, and multiple
Application field uses, and the intrinsic defect of powdery paints limits the further quick expansion of application.
Invention content
Present invention seek to address that the powdery paints based on existing polyester resin is required in paint line, high, scumbling is difficult, film
The bad defect of appearance provides a kind of aqueous powder slurry of polyester system, includes the preparation method and purposes of powder slurry.
It has been found, therefore, that this powder slurry has excellent storage stability, coating, adhesive, sealant etc. can be prepared by it
Product and suitable for spray, dip-coating and roller coating obtain the film of 10-100 μ m thicks, and show good levelability, hardness,
Mechanical performance, corrosion resistance and weather resistance.
The present invention provides a kind of powder slurry of stabilization, and the powder slurry is by solid phase powder component A and liquid phase component B systems
It is standby；
The component A includes polyester resin, curing agent, catalyst, pigment, filler；The component B includes water and aqueous helps
Agent；
The component A accounts for the 55-90% of powder slurry gross mass, and the component B accounts for the 10- of powder slurry gross mass
45%；Polyester resin in the component A is that saturation or unsaturated polyester (UP), the polyester resin account for the 25- of component A gross masses
60%, the number-average molecular weight of the polyester resin is 1000-10000g/mol；The polyester resin has end carboxyl structure, or
Contain terminal double bond structure in part；The acid value of the polyester resin is 25-75mgKOH/g；
The mass ratio of the polyester resin and water is：Polyester resin：Water=(0.3-12)：1.
Preferably, the polyester resin has line style or branched or dissaving structure；The polyester resin using polyacid,
Polyol condensating polymerize to obtain.
Preferably, the component A accounts for the 60-85% of powder slurry gross mass, and the component B accounts for powder slurry gross mass
15-40%.
Preferably, the curing agent accounts for the 3-30% of component A gross masses, the curing agent, catalyst, pigment and filler
Mass ratio be：Curing agent：Catalyst：Pigment：Filler=3-30：0.1-1：15-25：15-25.
Preferably, the curing agent is the small molecule containing two or more epoxy groups or hydroxyl or amino, asphalt mixtures modified by epoxy resin
It is one or more in fat, amino resins.
Preferably, the catalyst be 2- phenylimidazoles, dodecyl tertiary amine, triphenyl phosphorus, triphenyl ethyl phosphonium bromide phosphorus,
It is one or more in triphenyl ethyl phosphorus chloride, tribenzyl ethyl phosphonium bromide phosphorus, tribenzyl ethylmercury chloride phosphorus.
Preferably, the pigment is one kind in inorganic pigment, organic pigment, fluorescent pigment, metallic pigments, pearlescent pigment
Or it is a variety of.
Preferably, the pigment is azo pigments, anthraquinone pigment, benzimidazole pigment, dihydro quinoline bifurcation pyridine pigment, quinoline phthalein
Ketone pigment, diketopyrrolo-pyrrole pigment, isoindoline pigment, isoindolenone pigments, metal complex pigments, perylene
Pigment, phthalocyanine color, nigrosine, titanium dioxide, zinc white, carbon black, ferrimanganic are black, (such as chrome green is hydrated chromate pigment
Object), it is iron oxide brown, one or more in iron oxide yellow or pucherite.These pigment can be used alone or with the shape of mixture
Formula uses.
Preferably, the filler is diatomite, talcum powder, calcium carbonate, kaolin, barium sulfate, magnesium silicate, crystalline silica
It is one or more in silicon, amorphous silica, aluminium oxide.
Each analog assistant is conventional aqueous promoter in component B, is flexibly selected according to preparation process.
Preferably, the aqueous promoter include water, it is wetting dispersing agent, levelling agent, antifoaming agent, thickener, antioxidant, ultraviolet
Light absorbers.
The present invention also provides a kind of preparation method according to above-mentioned powder slurry, the preparation method includes following step
Suddenly：
(1) by extruder after polyester resin, curing agent, catalyst, pigment, the filler in component A being sufficiently mixed,
Melting extrusion at 80-110 DEG C, it is cooling after using it is broken, crush, obtain powder particle, the powder particle grain size after sieving
At 5-55 μm；
(2) powder particle that step (1) obtains is sufficiently mixed with component B, then carries out wet grinding, milling apparatus is sand
Grinding agent or ball mill, grinding temperature are 40-60 DEG C；
(3) mixture that step (2) obtains, is adjusted with amine or Ammonia, and it is 5-9 to get to steady to reach pH value
Fixed powder slurry.
Preferably, the amine is one or more, the Ammonia in ethylenediamine, hexamethylene diamine, triethanolamine, triethylamine
For ammonium hydroxide.
The present invention also provides a kind of purposes according to above-mentioned powder slurry, the purposes is to be used to prepare coating, bonding
Agent, sealant are used to prepare the film that thickness is 10-100 μm.
Beneficial effects of the present invention：
The powder slurry of the present invention has good bin stability, influenced by ambient temperature small, in room temperature stationary state
Under, it can store 1 year or more.
The powder slurry of the present invention has following application mode：The powder slurry may be used in the paint-on technique of liquid coating
Known method carry out, spraying technology both may be used and coated, can also use roller coating, dip-coating method be coated；
Then powder slurry after coating is toasted at 120-180 DEG C and is done solid work predrying 5-15 minutes at 40-70 DEG C.
Specific implementation mode
The specific implementation mode of the present invention is described further below：
The preparation of embodiment 1-3 powder slurries
Embodiment 1-3 is prepared by the following method, and the dosage of each component is shown in embodiment 1-3, the preparation method of powder slurry
It is as follows：
Embodiment 1
(1) it is 4000g/mol by the 15kg number-average molecular weights in component A and acid value is 35mgKOH/g polyester resin, 18kg
Epoxy resin, 0.3kg2- phenylimidazoles, 0.3kg triphenyl phosphorus, 10kg benzimidazoles pigment, 5kg isoindoline pigments, 6.4kg
Diatomite, 5kg talcum powders be sufficiently mixed after by extruder, the melting extrusion at 80-110 DEG C, it is cooling after using broken
Powder particle is obtained after broken, crushing, sieving, grain size is in 5-35 μ ms；(2) component B be 30kg water, 0.5kg wetting dispersing agents,
0.5kg levelling agents, 0.5kg antifoaming agent, 0.2kg thickeners, 0.5kg antioxidant, 0.3kg ultra-violet absorbers, step 1 is obtained
Powder particle be sufficiently mixed with component B, then carry out wet grinding, milling apparatus can be that agent, ball mill, grinding temperature is sanded
It is 40-60 DEG C；(3) mixture that step 2 obtains, is adjusted using ethylenediamine, and it is 7 to get to stable powder to reach pH value
Last slurry.
Embodiment 2
(1) by the 51kg number-average molecular weights in component A be 3500g/mol, acid value be 60mgKOH/g polyester resin,
7.65kg amino resins, 0.4kg tribenzyl ethyl phosphonium bromides phosphorus, 0.45kg triphenyl ethyls phosphorus chloride, 7.75kg iron oxide browns,
5kg iron oxide yellows, 3.75kg kaolin, 5kg talcum powder, 3kg magnesium silicate fillers be sufficiently mixed after by extruder, in 80-110
Melting extrusion at DEG C, using powder particle is obtained after broken, crushing, sieving after cooling, grain size is in 20-40 μ ms；(2) group
Point B be 10kg water, 0.6kg wetting dispersing agents, 0.8kg levelling agents, 0.5kg antifoaming agent, 0.1kg thickeners, 0.3kg antioxidant,
Powder particle and component B that step 1 obtains are sufficiently mixed, then carry out wet grinding by 0.5kg ultra-violet absorbers, and grinding is set
Standby can be that agent, ball mill is sanded, and grinding temperature is 40-60 DEG C；(3) mixture that step 2 obtains is carried out using triethanolamine
It adjusts, it is 6.5 to get to stable powder slurry to reach pH value.
Embodiment 3
(1) by the 24.5kg number-average molecular weights in component A be 9000g/mol, acid value be 75mgKOH/g polyester resin,
8.25kg propylene glycol, 0.15kg dodecyls tertiary amine, 0.1kg tribenzyl ethylmercury chlorides phosphorus, 6kg nigrosines, 5kg ferrimanganics be black, 6kg
Amorphous silica, 5kg crystalline silica fillers be sufficiently mixed after by extruder, the melting extrusion at 80-110 DEG C,
Using powder particle is obtained after broken, crushing, sieving after cooling, grain size is in 25-55 μ ms；(2) component B be 40kg water,
0.5kg wetting dispersing agents, 0.5kg levelling agents, 0.1kg antifoaming agent, 0.7kg thickeners, 0.3kg antioxidant, 0.5kg ultraviolet lights are inhaled
Agent is received, powder particle and component B that step 1 obtains are sufficiently mixed, then carry out wet grinding, milling apparatus can be sanded
Agent, ball mill, grinding temperature are 40-60 DEG C；(3) mixture that step 2 obtains, is adjusted using triethylamine, reaches pH value
For 8.5 to get to stable powder slurry.
The preparation of comparative example 1-3 comparative example powder slurries
Comparative example 1：The number-average molecular weight of polyester resin is 20000g/ to comparative example 1 in component A as different from Example 1
Mol, other conditions are same as Example 1, and powder slurry A1 is prepared.
Comparative example 2：The acid value of polyester resin is 120mgKOH/g to comparative example 2 in component A as different from Example 3,
His condition is same as Example 1, and powder slurry A2 is prepared.
Comparative example 3：Comparative example 3 obtains powder in step (1) after broken, crushing, sieving as different from Example 3
The average grain diameter of last particle is more than 60 μm, and 50% powder particle is more than 100 μm, and other conditions are constant, and powder silt is prepared
Starch A3.
Comparative example 4：The dosage of water is 300kg to comparative example 4 in component B as different from Example 1, other conditions with implement
Example 1 is identical, and powder slurry A4 is prepared.
Effect example
It takes equivalent to be placed in colorimetric cylinder embodiment 1-3 and comparative example the 1-3 powder slurry being prepared, forbids in room temperature
It is stored 6 months under state, measures the settling height and cohesion situation of 6 kinds of powder slurries；And temperature influences detection, and powder is become silted up
Slurry is first placed at 25 DEG C a week, then powder slurry is in 38 DEG C of environment and places a week, sees whether to agglomerate
Whether (being agglomerated for 25-38 DEG C in such as table 1), specific effect is as shown in table 1：
Table 1
It can be seen that the polyester resin for selecting number-average molecular weight bigger in component A in comparative example 1 from 1 data result of table
Prepared powder slurry is easy sedimentation and cohesion, and performance is unstable, this is because the excessive polyester resin dispersion of number-average molecular weight
Stability is bad, and relative density is bigger than normal, is easy to reunite；When screening powder particle in comparative example 3, if grain size is excessive, in dispersion
Sedimentation is easy in system, stablizing effect is poor；The water of excess is added in comparative example 4, excessive water can lead to polyester resin
Hydrolysis, reduces the dispersibility of polyester resin, and stablizing effect is deteriorated.In this experiment by polyester resin and preparation method
The method for exploring the product for obtaining the present invention and the present invention obtains of the invention steady in conjunction with selected polyester resin and method condition
Fixed powder slurry；And the powder slurry product of embodiment 1-3 is influenced less by temperature change, and comparative example 1-3 powder becomes silted up
Slurry occurs cohesion after variation of ambient temperature and unites, unstable.
Application Example
The powder slurry that embodiment 1-3 and comparative example 1-4 are prepared is used as coating, by embodiment 1-2 and comparison
The coating of example 1-3 is coated on base material through roller applications, and embodiment 3 and comparative example 4 are coated on base material through pneumatic spraying mode,
Detect whether that levelling, solidification, detection coating thickness, the hardness of film, salt spray resistance 100h are mono- at 180-200 DEG C of drying tunnel in 15min
Side Erosion Width, specific dataware table 2：
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Smearing thickness μm | 90 | 70 | 20 | 80 | 90 | 70 | 10 |
| Levelling | Well | Well | Well | It is poor | It is poor | It is poor | It is poor |
| Whether can cure in 3min | Energy | Energy | Energy | Energy | It cannot | Energy | Energy |
| Hardness H | ＞ 1 | ＞ 1 | ＞ 1 | ＞ 1 | ＜ 1 | ＞ 1 | ＞ 1 |
| Unilateral corrosion cm | ＜ 3 | ＜ 3 | ＜ 3 | ＞ 5 | ＞ 20 | ＞ 5 | ＞ 15 |
Embodiment 1-3, which is can be seen that, from 2 data result of table is used to prepare the performance of coating products than comparative example 1-4 systems
Standby coating products performance will be got well, and show good levelability, hardness, corrosion resistance, the acid value of polyester resin in comparative example 2
Higher easy hydrolysis, moisture is excessively high in comparative example 4, and comparative example 2 and comparative example 4 cause coating to easily corrode, as a result single
Side seriously corroded；It can be seen that the powder slurry of the present invention is more stable, the coating being used to prepare is also more stable.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is changed.Therefore, the invention is not limited in specific implementation modes disclosed and described above, to the one of invention
A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (10)
1. a kind of powder slurry of stabilization, which is characterized in that the powder slurry is by solid phase powder component A and liquid phase component B systems
It is standby；
The component A includes polyester resin, curing agent, catalyst, pigment, filler；The component B includes water and aqueous promoter；
The component A accounts for the 55-90% of powder slurry gross mass, and the component B accounts for the 10-45% of powder slurry gross mass；Institute
The polyester resin stated in component A is saturation or unsaturated polyester (UP), and the polyester resin accounts for the 25-60% of component A gross masses, described
The number-average molecular weight of polyester resin is 1000-10000g/mol；The polyester resin has end carboxyl structure, or end is contained in part
Double bond structure；The acid value of the polyester resin is 25-75mgKOH/g；
The mass ratio of the polyester resin and water is：Polyester resin：Water=(0.3-12)：1.
2. powder slurry according to claim 1, which is characterized in that the polyester resin has line style or branched or over-expense
Change structure；The polyester resin polymerize to obtain using polyacid, polyol condensating.
3. powder slurry according to claim 1, which is characterized in that the component A accounts for the 60- of powder slurry gross mass
85%, the component B accounts for the 15-40% of powder slurry gross mass.
4. powder slurry according to claim 1, which is characterized in that the curing agent accounts for the 3-30% of component A gross masses,
The curing agent, catalyst, pigment and filler mass ratio be：Curing agent：Catalyst：Pigment：Filler=3-30：0.1-1：
15-25：15-25.
5. powder slurry according to claim 1, which is characterized in that the curing agent is containing two or more epoxies
It is one or more in the small molecule of base or hydroxyl or amino, epoxy resin, amino resins.
6. powder slurry according to claim 1, which is characterized in that the catalyst is 2- phenylimidazoles, dodecyl
Tertiary amine, triphenyl phosphorus, triphenyl ethyl phosphonium bromide phosphorus, triphenyl ethyl phosphorus chloride, tribenzyl ethyl phosphonium bromide phosphorus, tribenzyl ethyl chloride
Change one or more in phosphorus.
7. powder slurry according to claim 1, which is characterized in that the pigment is inorganic pigment, organic pigment, fluorescence
It is one or more in pigment, metallic pigments, pearlescent pigment.
8. powder slurry according to claim 1, which is characterized in that the filler be diatomite, talcum powder, calcium carbonate,
It is one or more in kaolin, barium sulfate, magnesium silicate, crystalline silica, amorphous silica, aluminium oxide.
9. a kind of preparation method according to claim 1-8 any one of them powder slurries, which is characterized in that the preparation side
Method includes the following steps：
(1) by extruder after being sufficiently mixed polyester resin, curing agent, catalyst, pigment, the filler in component A, in 80-
Melting extrusion at 110 DEG C, using powder particle is obtained after broken, crushing, sieving after cooling, the powder particle grain size is in 5-
55μm；
(2) powder particle that step (1) obtains is sufficiently mixed with component B, then carries out wet grinding, milling apparatus is that agent is sanded
Or ball mill, grinding temperature are 40-60 DEG C；
(3) mixture that step (2) obtains, is adjusted with amine or Ammonia, and it is 5-9 to get to stable to reach pH value
Powder slurry.
10. a kind of purposes according to claim 1-8 any one of them powder slurries, which is characterized in that the purposes is to use
In preparing coating, adhesive, sealant or to be used to prepare thickness be 10-100 μm of film.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868105A (en) * | 2019-01-16 | 2019-06-11 | 浙江道明光电科技有限公司 | A kind of preparation method colouring compound adhesive |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1521354A (en) * | 1977-04-12 | 1978-08-16 | Reed International Ltd | Coating compositions |
| CN1184495A (en) * | 1995-05-19 | 1998-06-10 | 巴斯福拉克和法本股份公司 | Aqueous powder coating dispersion |
| CN1400992A (en) * | 2000-02-11 | 2003-03-05 | 阿克佐诺贝尔股份有限公司 | Process for preparing an aqueous powder coating dispersion |
-
2016
- 2016-09-29 CN CN201610864481.XA patent/CN108300181B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1521354A (en) * | 1977-04-12 | 1978-08-16 | Reed International Ltd | Coating compositions |
| CN1184495A (en) * | 1995-05-19 | 1998-06-10 | 巴斯福拉克和法本股份公司 | Aqueous powder coating dispersion |
| CN1400992A (en) * | 2000-02-11 | 2003-03-05 | 阿克佐诺贝尔股份有限公司 | Process for preparing an aqueous powder coating dispersion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868105A (en) * | 2019-01-16 | 2019-06-11 | 浙江道明光电科技有限公司 | A kind of preparation method colouring compound adhesive |
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|---|---|
| CN108300181B (en) | 2020-03-24 |
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