CN107245292A - A kind of wire-and-tube evaporator powdery paints and preparation method thereof - Google Patents
A kind of wire-and-tube evaporator powdery paints and preparation method thereof Download PDFInfo
- Publication number
- CN107245292A CN107245292A CN201611252951.3A CN201611252951A CN107245292A CN 107245292 A CN107245292 A CN 107245292A CN 201611252951 A CN201611252951 A CN 201611252951A CN 107245292 A CN107245292 A CN 107245292A
- Authority
- CN
- China
- Prior art keywords
- powdery paints
- wire
- tube evaporator
- mill
- toughener
- 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.)
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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
- 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
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention discloses a kind of wire-and-tube evaporator powdery paints, includes polyester resin, curing agent, filler, titanium dioxide, levelling agent, optical brightener, styrax, toughener, adhesion promoter, pigment.The preparation method of above-mentioned powdery paints is：S1, each component weighed according to mass fraction, premix 6~9min, high-speed mixer stirring；S2, the raw material being well mixed in S1 steps is added to extruder melting extrusion, tabletting, the wherein temperature in the area of extruder I is 90~100 DEG C, and II area's temperature is 95~105 DEG C；S3, the sheet stock in step S2 adds to flour mill milling, wherein 45~50Hz of main mill rotating speed of flour mill, pair mill 20~35Hz of rotating speed, the mesh of screen cloth 180~200 obtains powder product.Powdery paints is after cryogenic freezing in the present invention, still with good bending effect.
Description
Technical field
The invention belongs to powder coating technology field, and in particular to a kind of wire-and-tube evaporator powdery paints and its preparation
Method.
Background technology
Powdery paints is present with micronised state, without using solvent, with environment-friendly, and technique is simple, and production cost is low
The advantages of, there is critical role in coating industry.At present, powdery paints is widely used in household electrical appliances, all kinds of casings, workpiece and
The fields such as antitheft door.Some applications of the prior art need powdery paints freeze-resistant to bend, especially the silk of refrigerator, refrigerator-freezer etc.
Tubular evaparator installation process needs bending, it is desirable to which the coating of powdery paints has stronger freeze-resistant bending property.It is existing
Powdery paints has good bending property, but still there is good bending property not reach also in a cold or frozen state
Arrive.
The content of the invention
For above-mentioned deficiency of the prior art, the invention provides one kind meet highway guardrail special color demand and
Wire-and-tube evaporator powdery paints having excellent weather resistance and preparation method thereof.
A kind of wire-and-tube evaporator powdery paints is provided one of to achieve the above object, and present invention employs following technology
Scheme：
A kind of wire-and-tube evaporator powdery paints, includes each component of following mass fraction：
It is preferred that, the polyester resin is terminal carboxyl polyester resin.
It is preferred that, the curing agent is hydroxyalkyl amide.
It is preferred that, the toughener is polyvinyl butyral resin, Phthalates, adipic acid esters and phosphoric acid ester
It is one or more.
Further, the toughener is polyvinyl butyral resin.
It is preferred that, the adhesion promoter uses at 25 DEG C viscosity for 20~80Pas, and 20 DEG C of lower densities are 1~
1.08g/ml chlorinated polypropylene.
The second object of the present invention is to provide a kind of preparation method of above-mentioned wire-and-tube evaporator powdery paints, including such as
Lower step：
S1, each component weighed according to mass fraction, after 6~9min of premix, be placed in high-speed mixer and stir；
S2, the powder in S1 steps adds to extruder melting extrusion, tabletting, wherein the temperature in the area of extruder I be 90~
100 DEG C, II area's temperature is 95~105 DEG C；
S3, by step S2 sheet stock add flour mill milling, wherein 45~50Hz of main mill rotating speed of flour mill, pair mill turn
20~35Hz of speed, the mesh of screen cloth 180~200 obtains powder product.
The beneficial effects of the present invention are：
The present invention makes full use of toughener to increase the pliability of coating, assigns powdery paints coating after cryogenic freezing,
Still there is good bending effect, while the polyvinyl butyral resin for being used as toughener has good resin compatible, face
Material and the moistening of filler dispersiveness, using excellent synergy can be played in the compositions of the present invention；Adhesion promoter chlorine
Change polypropylene and can overcome the disadvantages that the disadvantage that toughener reduces the wetability of coating again while film flexibility is increased；Hydroxyalkyl acyl
Polyester resin cross linking reaction and solidification film forming in amine hardener and powdery paints；It is final so as to each component synergy of the present invention
Assigning paint coatings has good adhesion effect, solves the technical problem that freeze-resistant bends powdery paints.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the present invention is clearly and completely described.Following reality
Apply example to be only used for clearly illustrating technical scheme, and can not be limited the scope of the invention with this.
A kind of wire-and-tube evaporator powdery paints
In terms of mass fraction, including following component：50~70 parts of polyester resin；3~7 parts of curing agent；10~20 parts of filler；
10~25 parts of titanium dioxide；0.5~1.5 part of levelling agent；0.5~1.5 part of optical brightener；0.1~1 part of styrax；Toughener 0.5~
1.5 part；0.5~1.5 part of adhesion promoter；0~5 part of pigment.
As shown in the table, the formula each component of preferred embodiment is in terms of mass fraction.
Wherein, polyester resin is terminal carboxyl polyester resin.
Curing agent is hydroxyalkyl amide, with it is nontoxic, efficient, economical and environmentally friendly the characteristics of.
Toughener is the one or more of polyvinyl butyral resin, Phthalates, adipic acid esters and phosphoric acid ester.
Specifically, toughener selects polyvinyl butyral resin, the pliability of coating can be increased, while polyvinyl butyral resin has very
The moistening dispersiveness of resin compatible well, pigment and filler, makees using that can play excellent collaboration in the compositions of the present invention
With；
Adhesion promoter uses at 25 DEG C viscosity for 20~80Pas, and 20 DEG C of lower densities are gathered for 1~1.08g/ml chlorination
Propylene.The chlorinated polypropylene can overcome the disadvantages that toughener makes what the wetability of coating was reduced again while with increase film flexibility
Disadvantage, assigning paint coatings has good adhesion effect.
A kind of preparation method of wire-and-tube evaporator powdery paints
The spraying of its manufacturing process is as follows：
S1, each component in above-described embodiment weighed according to formula, premix 6~9min, high-speed mixer stirring；
S2, the powder in S1 steps is added to extruder melting extrusion, tabletting, the wherein temperature in the area of extruder I is 90
~100 DEG C, II area's temperature is 95~105 DEG C；
S3, by step S2 sheet stock add flour mill milling, wherein 45~50Hz of main mill rotating speed of flour mill, pair mill turn
20~35Hz of speed, the mesh of screen cloth 180~200 obtains powder product.
The powdery paints that above-described embodiment is obtained is tested
Freeze-resistant test result to powder coating is as shown in the table：
Shown by result of the test, the un-added embodiment 1 of toughener, adhesion promoter and adhesion promoter are not
The embodiment 2 of addition, the not up to use demand of freeze-resistant bending property；And embodiment 1~3 reached it is excellent cold-resistant
Freeze bending effect.Show, the present invention by add toughener coordinate other components can assign powdery paints coating have it is fabulous
Bending property, pass through the addition of adhesion promoter in addition, by increasing capacitance it is possible to increase the adhesive force between powdery paints coating and base material.
In summary, the powdery paints coating obtained by present invention preparation still has good bending property after cryogenic freezing, is suitable to
Apply in wire-and-tube evaporator.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these improve and deformed
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of wire-and-tube evaporator powdery paints, it is characterised in that include each component of following mass fraction：
2. a kind of wire-and-tube evaporator powdery paints according to claim 1, it is characterised in that：The polyester resin is
Terminal carboxyl polyester resin.
3. a kind of wire-and-tube evaporator powdery paints according to claim 1, it is characterised in that：The curing agent is hydroxyl
Alkylamide.
4. a kind of wire-and-tube evaporator powdery paints according to claim 1, it is characterised in that：The toughener is poly-
Vinyl butyral, Phthalates, the one or more of adipic acid esters and phosphoric acid ester.
5. a kind of wire-and-tube evaporator powdery paints according to claim 4, it is characterised in that：The toughener is poly-
Vinyl butyral.
6. a kind of wire-and-tube evaporator powdery paints according to claim 1, it is characterised in that：The adhesive force promotes
Agent uses at 25 DEG C viscosity for 20~80Pas, the chlorinated polypropylene that 20 DEG C of lower densities are 1~1.08g/ml.
7. a kind of preparation method of the wire-and-tube evaporator powdery paints as described in any one of claim 1 to 6, it is characterised in that
Comprise the following steps：
S1, each component weighed according to mass fraction, after 6~9min of premix, be placed in high-speed mixer and stir；
S2, the powder in S1 steps is added to extruder melting extrusion, tabletting, the wherein temperature in the area of extruder I is 90~100
DEG C, II area's temperature is 95~105 DEG C；
S3, by step S2 sheet stock add flour mill milling, wherein 45~50Hz of main mill rotating speed of flour mill, pair mill rotating speed 20
~35Hz, the mesh of screen cloth 180~200, obtains powder product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252951.3A CN107245292A (en) | 2016-12-30 | 2016-12-30 | A kind of wire-and-tube evaporator powdery paints and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252951.3A CN107245292A (en) | 2016-12-30 | 2016-12-30 | A kind of wire-and-tube evaporator powdery paints and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107245292A true CN107245292A (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611252951.3A Pending CN107245292A (en) | 2016-12-30 | 2016-12-30 | A kind of wire-and-tube evaporator powdery paints and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047899A (en) * | 2017-12-21 | 2018-05-18 | 青岛海棠万达工贸有限公司 | Outdoor machine of air-conditioner high anti-corrosive powder paint and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985538A (en) * | 2010-10-27 | 2011-03-16 | 中国电器科学研究院 | Environment-friendly low-temperature curing pure polyester powder paint and preparation method thereof |
| CN102277063A (en) * | 2011-07-08 | 2011-12-14 | 天津翔盛粉末涂料有限公司 | Heavy-duty anticorrosion powder coating special for coating steel bars |
| CN103709908A (en) * | 2013-12-30 | 2014-04-09 | 山东朗法博粉末涂装科技有限公司 | Super weather resistant low-temperature curing powder coating for glass reinforced plastic |
-
2016
- 2016-12-30 CN CN201611252951.3A patent/CN107245292A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985538A (en) * | 2010-10-27 | 2011-03-16 | 中国电器科学研究院 | Environment-friendly low-temperature curing pure polyester powder paint and preparation method thereof |
| CN102277063A (en) * | 2011-07-08 | 2011-12-14 | 天津翔盛粉末涂料有限公司 | Heavy-duty anticorrosion powder coating special for coating steel bars |
| CN103709908A (en) * | 2013-12-30 | 2014-04-09 | 山东朗法博粉末涂装科技有限公司 | Super weather resistant low-temperature curing powder coating for glass reinforced plastic |
Non-Patent Citations (2)
| Title |
|---|
| 北京市油漆厂: "《涂料工业》", 31 October 1971, 燃料化学工业出版社 * |
| 马榴强: "《精细化工工艺学》", 29 February 2008, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047899A (en) * | 2017-12-21 | 2018-05-18 | 青岛海棠万达工贸有限公司 | Outdoor machine of air-conditioner high anti-corrosive powder paint and preparation method thereof |
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Application publication date: 20171013 |
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