CN107641451A - A kind of matt powder coatings and preparation method thereof - Google Patents
A kind of matt powder coatings and preparation method thereof Download PDFInfo
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- CN107641451A CN107641451A CN201711076313.5A CN201711076313A CN107641451A CN 107641451 A CN107641451 A CN 107641451A CN 201711076313 A CN201711076313 A CN 201711076313A CN 107641451 A CN107641451 A CN 107641451A
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Abstract
The present invention relates to a kind of matt powder coatings and preparation method thereof, more particularly to thermosetting powder coating technical field, the matt powder coatings that a kind of coating thickness change does not influence on vacuum transfer whole structure are provided, the matt powder coatings have excellent thermal transfer performance, and formula forms as follows：Saturation terminal carboxyl polyester resin 25% 30.5%, high hydroxyl value hydroxyl telechelic polyester resin 6.5% 8%, low hydroxyl value hydroxyl telechelic polyester resin 8.7% 10.6%, curing agent 2% 2.5%, enclosed type isophorone diisocyanate 11.8% 14.4%, the non-pure PET delustrant of cerul 2% 4%, delustring barium sulfate, 24.4% 36.4%, levelling agent 1.2%, optical brightener 1%, styrax 0.4%；Pigment 3% 5%, there is superpower resistance to photodissociation, anti-hydrolytic performance, be more than 3 times of traditional dumb light transfer powder.
Description
Technical field
The present invention relates to thermosetting powder coating technical field, more particularly to a kind of matt powder coatings and its preparation side
Method.
Background technology
Powdery paints rises from the last century 80's Mo to be developed into today, has been surmounted far away as coating in itself
Anti-corrosion function, it five spends the decorative effect of ten colors, a great variety increasingly to be liked by people.Exactly by its environment friend
Good property and extremely strong decorative effect, building materials household field has been widely applied to it.Timber resources is rare and industrial high-efficiency production
Today, the thermal transfer imitation wood head technology of powdery paints turns into hot topic, and fast-developing.But during powder coating electrostatic spraying,
Workpiece corner or groove form " faraday's Electric field shielding effect ", and powder is not easy powder in this place；It is or artificial
The otherness of spraying, it is likely to cause the inhomogeneities of coating thickness.Traditional dumb light transfer printing type powdery paints, due to simultaneous
Care for delustring and paper-tear picture two major features；Therefore use the method for the dry-mixed delustring of height acid number two-component to make dumb light transfer printing type powder and apply
Material.But dumb light type powdery paints made from the method, the color after it is transferred are especially sensitive to the inhomogeneities of coating thickness.
Usually, it is deeper in the less place of thickness, color；In the place that thickness is larger, color is shallower；Background color is more shallow, and ink is denseer,
Colour-difference is away from bigger；Influence very much the global consistency of transferring effect.At present in high-end metal manufacture parts, particularly aluminum products
Furniture, compel highly necessary solve the problems, such as it is such.
In view of it is above-mentioned the defects of, the design people is actively subject to research and innovation, to found a kind of matt powder coatings and
Its preparation method, due to its safety and reliability, make it with more the value in industry.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of matt powder coatings and preparation method thereof, apply
There is excellent heat to turn for the matt powder coatings that film thickness change does not influence on vacuum transfer whole structure, the matt powder coatings
Print performance.
A kind of matt powder coatings of the present invention and preparation method thereof, formula composition is as follows：Saturation terminal carboxyl polyester resin
25%-30.5%, high hydroxyl value hydroxyl telechelic polyester resin 6.5%-8%, low hydroxyl value hydroxyl telechelic polyester resin 8.7%-10.6%, Gu
Agent 2%-2.5%, enclosed type isophorone diisocyanate 11.8%-14.4%, the non-pure PET delustrant 2%-4% of cerul,
Delustring barium sulfate, 24.4%-36.4%, levelling agent 1.2%, optical brightener 1%, styrax 0.4%；Pigment 3%-5%.
Further, the acid number of the saturation terminal carboxyl polyester resin is：33~35mgKOH/mol.
Further, the curing agent is TGIC.
Further, comprise the following steps：
1) prescription quality ratio weighs various materials, and pours into compounding jar, is sufficiently mixed, and broken 240 seconds；
2) material mixed is extruded even into double screw extruder, and the area's temperature control of extruder one is 100~110
DEG C, two area's temperature controls are at 110~120 DEG C；
3) fused mass come out from extruder, the tablet press machine fast cooling through being cooled down with frozen water are simultaneously compressed into tablet form, then
The preliminary broken shape that fragmentates is carried out through disintegrating machine；
4) fragment is sent to ACM flour mills, powdered thing is made, and 180~200 mesh that sieve, get product.
Further, the powdered thing specification is D50：35~48 μm.
Further, electrostatic spraying, by 200 DEG C of bakings, persistently toasts 15 minutes post-crosslinkings into height to aluminium shape surface
Molecule diaphragm.
Further, the polymer protective film is the smooth mat surface of 20~40 degree of gloss.
Further, the polymer protective film, vacuum hot transferred process is carried out, and after the completion of transfer, same
The transfer color effects of transfer paper difference thickness are consistent.
By such scheme, the present invention at least has advantages below：(1) one-component manufacture craft is used, than traditional double groups
Part simple half of dumb light transfer powder manufacture craft；(2) gloss is stable and adjusting range is wide, by being formulated fine setting i.e. available 20
Any gloss between the degree of degree -40, feel is fine and smooth, and transfer printing wood grain effect is true to nature；(3) conventional transfer powder coating thickness pair is overcome
The influence of shade after transfer, accomplish that film thickness without influence, improves the whole structure of object to color after transfer；
(4) film has superpower resistance to photodissociation, anti-hydrolytic performance, is more than 3 times of traditional dumb light transfer powder.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, described in detail below with presently preferred embodiments of the present invention as after.
Embodiment
With reference to embodiment, the embodiment of the present invention is described in further detail.Following examples are used for
Illustrate the present invention, but be not limited to the scope of the present invention.
Embodiment 1
A kind of matt powder coatings and preparation method thereof, formula composition are as follows：Saturation terminal carboxyl polyester resin 25%, high hydroxyl
It is worth hydroxyl telechelic polyester resin 6.5%, low hydroxyl value hydroxyl telechelic polyester resin 8.7%, curing agent 2%, enclosed type isophorone isocyanide
Acid esters 11.8%, the non-pure PET delustrant 4% of cerul, delustring barium sulfate, 36.4%, levelling agent 1.2%, optical brightener 1%, rest in peace
Perfume 0.4%；Pigment 3%.The acid number of saturation terminal carboxyl polyester resin is：33~35mgKOH/mol.Curing agent is TGIC.
Comprise the following steps：
1) prescription quality ratio weighs various materials, and pours into compounding jar, is sufficiently mixed, and broken 240 seconds；
2) material mixed is extruded even into double screw extruder, and the area's temperature control of extruder one is 100~110
DEG C, two area's temperature controls are at 110~120 DEG C；
3) fused mass come out from extruder, the tablet press machine fast cooling through being cooled down with frozen water are simultaneously compressed into tablet form, then
The preliminary broken shape that fragmentates is carried out through disintegrating machine；
4) fragment is sent to ACM flour mills, powdered thing is made, and 180~200 mesh that sieve, get product.
Powdered thing specification after being made is D50：35~48 μm.Electrostatic spraying is to aluminium shape surface, by 200 DEG C of bakings
It is roasting, 15 minutes post-crosslinkings are persistently toasted into polymer protective film.Polymer protective film is the smooth dumb light table of 20~40 degree of gloss
Face.Polymer protective film, vacuum hot transferred process is carried out, and after the completion of transfer, the transfer of same transfer paper difference thickness
Color effects are consistent.
Curing agent is TGIC, and Changzhou Niutang Chemical Plant produces.High hydroxyl value hydroxyl telechelic polyester resin：EL-1900, Chinese platform
Wan Chanxie high polymer materials company produces.Low hydroxyl value hydroxyl telechelic polyester resin：EL-1200, TaiWan, China production association high polymer material
Company produces.The enclosed type isophorone diisocyanate：VESTAGON B1530, German Deguss companies production.It is described non-
The pure PET delustrant of cerul：T-302C, Shanghai rope are Chemical Co., Ltd.'s production.
Coating process and contrasting detection：Take out the matt powder that coating thickness change does not influence on vacuum transfer whole structure
Coating, plate is sprayed with corona guns, thickness controls at 30 microns, 60 microns, 90 microns, each three pieces respectively；Further take out traditional identical
The dumb light transfer powder of color, similarly spray 30 microns, 60 microns, 90 microns of each three pieces of models；All models are placed on 200 simultaneously
Toasted in DEG C baking oven and produce within 15 minutes the present invention and traditional dumb light transfer powder paint coatings, after cooling completely to be coated
Carry out vacuum transfer experiment.The transfer pattern coating film of gained carries out properties detection, Detection results such as following table again：
Beneficial effects of the present invention include：
(1) one-component manufacture craft is used, than the simple half of traditional two-component dumb light transfer powder manufacture craft；
(2) gloss is stable and adjusting range is wide, is any gloss between available 20 degree of -40 degree by being formulated fine setting,
Feel is fine and smooth, and transfer printing wood grain effect is true to nature；
(3) influence of the conventional transfer powder coating thickness to shade after transfer is overcome, has accomplished film thickness to turning
Color improves the whole structure of object without influence after print；
(4) film has superpower resistance to photodissociation, anti-hydrolytic performance, is more than 3 times of traditional dumb light transfer powder.
Embodiment 2
It is different from embodiment 1, a kind of matt powder coatings and preparation method thereof, it is characterised in that：Formula composition is as follows：It is full
With terminal carboxyl polyester resin 27.8%, high hydroxyl value hydroxyl telechelic polyester resin 7.2%, low hydroxyl value hydroxyl telechelic polyester resin 9.6%, Gu
Agent 2.2%, enclosed type isophorone diisocyanate 13.2%, the non-pure PET delustrant 3% of cerul, delustring barium sulfate,
30.4%, levelling agent 1.2%, optical brightener 1%, styrax 0.4%；Pigment 4%.Embodiment 1 is different from, is chosen in resin ratio
Between value ensure that effect, improve product quality.
Embodiment 3
It is different from above-described embodiment, a kind of matt powder coatings and preparation method thereof, it is characterised in that：Formula composition is such as
Under：Saturation terminal carboxyl polyester resin 30.5%, high hydroxyl value hydroxyl telechelic polyester resin 8%, low hydroxyl value hydroxyl telechelic polyester resin
10.6%, curing agent 2.5%, enclosed type isophorone diisocyanate 14.4%, the non-pure PET delustrant 2% of cerul, delustring sulphur
Sour barium, 24.4%, levelling agent 1.2%, optical brightener 1%, styrax 0.4%；Pigment 5%.It is different from above-described embodiment, this implementation
Example chooses resin accounting maximum, both ensure that quality, can also improve product using effect.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (8)
- A kind of 1. matt powder coatings and preparation method thereof, it is characterised in that：Formula composition is as follows：Saturation terminal carboxyl polyester resin 25%-30.5%, high hydroxyl value hydroxyl telechelic polyester resin 6.5%-8%, low hydroxyl value hydroxyl telechelic polyester resin 8.7%-10.6%, Gu Agent 2%-2.5%, enclosed type isophorone diisocyanate 11.8%-14.4%, the non-pure PET delustrant 2%-4% of cerul, Delustring barium sulfate, 24.4%-36.4%, levelling agent 1.2%, optical brightener 1%, styrax 0.4%；Pigment 3%-5%.
- 2. matt powder coatings according to claim 1 and preparation method thereof, it is characterised in that：The saturation end carboxyl gathers The acid number of ester resin is：33~35mgKOH/mol.
- 3. matt powder coatings according to claim 1 and preparation method thereof, it is characterised in that：The curing agent is TGIC。
- 4. matt powder coatings according to claim 1 and preparation method thereof, it is characterised in that：Comprise the following steps：1) prescription quality ratio weighs various materials, and pours into compounding jar, is sufficiently mixed, and broken 240 seconds；2) material mixed is extruded even into double screw extruder, and the area's temperature control of extruder one is at 100~110 DEG C, two Area's temperature control is at 110~120 DEG C；3) fused mass come out from extruder, the tablet press machine fast cooling through being cooled down with frozen water are simultaneously compressed into tablet form and then passed through and be broken Broken machine carries out the preliminary broken shape that fragmentates；4) fragment is sent to ACM flour mills, powdered thing is made, and 180~200 mesh that sieve, get product.
- 5. polyester-TGIC type powdery paints according to claim 4 and preparation method thereof, it is characterised in that：The powder Shape thing specification is D50：35~48 μm.
- 6. polyester-TGIC type powdery paints according to claim 1 and preparation method thereof, it is characterised in that：Electrostatic spraying To aluminium shape surface, by 200 DEG C of bakings, 15 minutes post-crosslinkings are persistently toasted into polymer protective film.
- 7. polyester-TGIC type powdery paints according to claim 6 and preparation method thereof, it is characterised in that：The high score Sub- diaphragm is the smooth mat surface of 20~40 degree of gloss.
- 8. polyester-TGIC type powdery paints according to claim 6 and preparation method thereof, it is characterised in that：The high score Sub- diaphragm, vacuum hot transferred process is carried out, and after the completion of transfer, the transfer color effects of same transfer paper difference thickness Unanimously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711076313.5A CN107641451A (en) | 2017-11-03 | 2017-11-03 | A kind of matt powder coatings and preparation method thereof |
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| CN201711076313.5A CN107641451A (en) | 2017-11-03 | 2017-11-03 | A kind of matt powder coatings and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250918A (en) * | 2018-02-11 | 2018-07-06 | 广东华江粉末科技有限公司 | A kind of aluminium floor thermal transfer powdery paints, preparation method and its application |
| CN108707398A (en) * | 2018-06-20 | 2018-10-26 | 安徽辰融金属表面处理科技有限公司 | A kind of electrostatic spraying powder and preparation method thereof for metal component protection |
| CN108753124A (en) * | 2018-06-01 | 2018-11-06 | 上海汉熵新材料科技有限公司 | A kind of water base dumb light pigment transfer film and preparation method thereof |
| CN109913112A (en) * | 2019-03-04 | 2019-06-21 | 浙江超浪新材料有限公司 | A kind of aluminium shape surface treatment process |
| CN110305576A (en) * | 2019-07-15 | 2019-10-08 | 江西睿智环保科技有限公司 | With anti-graffiti high definition transfer printing wood grain powdery paints, Preparation method and use |
| CN115926603A (en) * | 2022-11-17 | 2023-04-07 | 广东银洋环保新材料有限公司 | Anti-bending transparent matte high-hardness powder coating and preparation method thereof |
-
2017
- 2017-11-03 CN CN201711076313.5A patent/CN107641451A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250918A (en) * | 2018-02-11 | 2018-07-06 | 广东华江粉末科技有限公司 | A kind of aluminium floor thermal transfer powdery paints, preparation method and its application |
| CN108753124A (en) * | 2018-06-01 | 2018-11-06 | 上海汉熵新材料科技有限公司 | A kind of water base dumb light pigment transfer film and preparation method thereof |
| CN108707398A (en) * | 2018-06-20 | 2018-10-26 | 安徽辰融金属表面处理科技有限公司 | A kind of electrostatic spraying powder and preparation method thereof for metal component protection |
| CN109913112A (en) * | 2019-03-04 | 2019-06-21 | 浙江超浪新材料有限公司 | A kind of aluminium shape surface treatment process |
| CN109913112B (en) * | 2019-03-04 | 2021-11-02 | 浙江超浪新材料有限公司 | Polyurethane wood grain powder coating for aluminum profile |
| CN110305576A (en) * | 2019-07-15 | 2019-10-08 | 江西睿智环保科技有限公司 | With anti-graffiti high definition transfer printing wood grain powdery paints, Preparation method and use |
| CN115926603A (en) * | 2022-11-17 | 2023-04-07 | 广东银洋环保新材料有限公司 | Anti-bending transparent matte high-hardness powder coating and preparation method thereof |
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