CN1228404C - White thermosetting epoxy polyester powder coating with thin coating and preparation method thereof - Google Patents
White thermosetting epoxy polyester powder coating with thin coating and preparation method thereof Download PDFInfo
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- CN1228404C CN1228404C CN 02155204 CN02155204A CN1228404C CN 1228404 C CN1228404 C CN 1228404C CN 02155204 CN02155204 CN 02155204 CN 02155204 A CN02155204 A CN 02155204A CN 1228404 C CN1228404 C CN 1228404C
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- coating
- epoxy
- mineral dye
- powder coating
- powder
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- 238000000576 coating method Methods 0.000 title claims abstract description 70
- 239000011248 coating agent Substances 0.000 title claims abstract description 67
- 239000000843 powder Substances 0.000 title claims abstract description 66
- 239000004593 Epoxy Substances 0.000 title claims abstract description 50
- 229920000728 polyester Polymers 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920001187 thermosetting polymer Polymers 0.000 title abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 229920001225 polyester resin Polymers 0.000 claims abstract description 19
- 239000004645 polyester resin Substances 0.000 claims abstract description 19
- 238000012986 modification Methods 0.000 claims abstract description 14
- 230000004048 modification Effects 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 72
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 36
- 239000004408 titanium dioxide Substances 0.000 claims description 36
- 229920005989 resin Polymers 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 29
- 238000013517 stratification Methods 0.000 claims description 25
- 238000002156 mixing Methods 0.000 claims description 20
- 239000004925 Acrylic resin Substances 0.000 claims description 18
- 229920000178 Acrylic resin Polymers 0.000 claims description 18
- 229920006395 saturated elastomer Polymers 0.000 claims description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 17
- 239000011707 mineral Substances 0.000 claims description 17
- 239000002131 composite material Substances 0.000 claims description 14
- 239000008187 granular material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- 238000010334 sieve classification Methods 0.000 claims description 10
- -1 wherein Substances 0.000 claims description 10
- 235000021355 Stearic acid Nutrition 0.000 claims description 4
- UMHKOAYRTRADAT-UHFFFAOYSA-N [hydroxy(octoxy)phosphoryl] octyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OP(O)(=O)OCCCCCCCC UMHKOAYRTRADAT-UHFFFAOYSA-N 0.000 claims description 4
- XMQYIPNJVLNWOE-UHFFFAOYSA-N dioctyl hydrogen phosphite Chemical compound CCCCCCCCOP(O)OCCCCCCCC XMQYIPNJVLNWOE-UHFFFAOYSA-N 0.000 claims description 4
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 4
- 239000000049 pigment Substances 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 239000001023 inorganic pigment Substances 0.000 abstract 2
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000024287 Areas Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
The invention belongs to the field of thermosetting powder coatings, and particularly relates to a white thermosetting epoxy polyester powder coating with a thin coating and a preparation method thereof. The invention adopts inorganic pigment surface modification and a dispersion technology thereof to ensure that pigment particles are uniformly and efficiently dispersed in a high molecular polymer matrix, so that the coating coverage rate of the thermosetting powder coating is improved, and the coating has excellent leveling property and mechanical property, wherein the weight ratio of inorganic pigment powder to epoxy resin to polyester resin to leveling agent is 21-33: 28-34: 33-39: 3-6.
Description
Technical field
The invention belongs to the thermosetting powder coating(s) field, particularly a kind of white heat-curable epoxy polyester powder coating that possesses the scumbling stratification and preparation method thereof.
Background technology
Thermosetting powder coating(s) is mainly used in the antirust of aspects such as household electrical appliances, automobile and pipeline and hardware and decorates.That thermosetting powder coating(s) has is solvent-free, nuisanceless, an application just can form coating, the coating of spraying and spoiling over can recycling etc. characteristics.
The coating thickness of powder coating is an important factor of decision powder coating outward appearance, thicker filming has levelling property preferably, but many Application Areass, as be used for body of a motor car transparent powder paint, be used for the coiled material appearance coating, be used for the coating of can shell etc., filming must the scumbling stratification.In order to enlarge the range of application of powder coating, powder coating must develop to scumbling stratification direction, and this has been people's common recognition.Therefore, searching realizes that the effective way of the scumbling stratification of filming of powder coating seems very important and urgent.Has very big challenge technically.
Coating World J., 1996,1,57 have reported the scumbling stratification that realizes powder coating by the particle diameter of resin chemistry and technology progress and strict control powder coating.The Canmaker, 1993,5,41 and coatings industry, 2001,4,29 have reported the powder coating that has built up size-grade distribution 5-20 micron, mean particle size 10-15 micron at Japan, US and European has respectively obtained to use at the coil painting line, wherein at a tentative coiled material powder finish line of the U.S., its coating thickness is 25 microns.Coatings industry, 2001,11,5 reports have been analyzed the realization powder coating scumbling stratification technical issues that need to address, as: the melt viscosity of powder coating resin is low, but the second-order transition temperature of resin is not low again; Dispersing of pigments will be got well, and opacifying power is eager to excel; The granularity of powder coating is little, and distribution is narrow; Problems such as powder coating dry powder flowability and static electrification performance are good.Problem that this technology not only relates to and technical difficulty are very big, and the production cost of powder coating is higher.
Generally, concerning dark powder coating, do not need its too thick protection and covering effect that just can play of filming to the metallic surface of dark color.But, for white powder coating, guarantee that it films there are good protection, modification and covering effect in the dark metal surface, it is filmed reach certain thickness, generally need reach 70～80 microns.This compares with the coating thickness (20～30 microns) of solvent based coating, not only be coated with thickness, and cost is also high.
Summary of the invention
One of purpose of the present invention is to overcome existing white heat-curable epoxy polyester powder coating when filming thin (less than 45～50 microns), and the shortcoming of its covering effect and levelling property difference provides a kind of white heat-curable epoxy polyester powder coating that possesses the scumbling stratification.
Another object of the present invention provides a kind of preparation method who possesses the white heat-curable epoxy polyester powder coating of scumbling stratification.
Technical scheme of the present invention is to adopt mineral dye surface modification and dispersion technology thereof, disperse to guarantee that pigment particles is even in the high molecular polymer matrix, efficient, the hiding rare of filming of thermosetting powder coating(s) is improved, and have good flow leveling and mechanical property.
The white heat-curable epoxy polyester powder coating that possesses the scumbling stratification of the present invention is made up of mineral dye powder, Resins, epoxy, vibrin and flow agent, wherein, mineral dye powder: Resins, epoxy: vibrin: the weight ratio of flow agent is 21～33: 28～34: 33～39: 3～6.
The preparation method who possesses the white heat-curable epoxy polyester powder coating of scumbling stratification of the present invention comprises the following steps:
(1). with mineral dye and properties-correcting agent 97.5～99.8: 0.2～2.5 pre-mixing by weight,, obtain the mineral dye powder of polymolecularity at 100～110 ℃ of dry method modifications;
(2). be 21～33: 28～34: 33～39: 3～6 ratio batching and fully pre-mixing by weight with the mineral dye powder of the polymolecularity of step (1) and Resins, epoxy, vibrin and flow agent, under 120～130 ℃ condition, melt extrude, obtain extruding product;
(3). with step (2) extrude the product grinding, and after the 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification.
Described mineral dye is that titanium dioxide or titanium dioxide and barium sulfate weight ratio are 66: 34 composite granule.
Described properties-correcting agent is stearic acid, aminosilane, tetra isopropyl two (dioctyl phosphite) titanic acid ester or sec.-propyl (dioctyl pyrophosphate) titanic acid ester etc.
Described Resins, epoxy is E-12 (604) type Resins, epoxy (the kind chemical plant of inspiring confidence in, Huangshan produces, and is as follows);
Described vibrin is YZ9802 saturated polyester resin (the extraordinary polyester in Yizheng City, Jiangsu factory produces, and is as follows);
Described flow agent is 503 acrylic resin flow agents (the refreshing sword chemical industry in Anhui limited liability company produces, and is as follows).
The white heat-curable epoxy polyester powder coating that possesses the scumbling stratification that the present invention adopts surface of pigments modification and efficient dispersion technology thereof to make, characteristics with the mineral dye dispersiveness and the good leveling property of filming, compare with similar thermoset epoxy polyester powder coating, under the constant situation of the cost of filming, hiding rare and other performance, can make coating thickness be thinned to the 45-50 micron by 70～80 microns.
The white heat-curable epoxy polyester powder coating preparation method who possesses the scumbling stratification of the present invention is easy, with low cost, is easy to industrialization and applies.
Embodiment
Embodiment 1
(1). with commercially available titanium dioxide and stearic acid is pre-mixing in 99.8: 0.2 by weight, at 100～110 ℃ of dry method modifications, obtains the highly dispersible titanium dioxide powder.
(2). with highly dispersible titanium dioxide powder and E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of step (1) is 24: 33: 38 by weight: 5 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). will extrude the product grinding, and after 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of titanium dioxide, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents.
Embodiment 2
(1). with commercially available titanium dioxide and aminosilane is pre-mixing in 98.5: 1.5 by weight, at 100～110 ℃ of dry method modifications, obtains the highly dispersible titanium dioxide powder.
(2). with highly dispersible titanium dioxide powder and E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of step (1) is 22: 34: 39 by weight: 5 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). will extrude the product grinding, and after 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of titanium dioxide, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents.
Embodiment 3
(1). with commercially available titanium dioxide and tetra isopropyl two (dioctyl phosphite) titanic acid ester is pre-mixing in 98: 2 by weight, at 100～110 ℃ of dry method modifications, obtains the highly dispersible titanium dioxide powder.
(2). with highly dispersible titanium dioxide powder and E-12 (604) Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of step (1) is 23: 34.5: 39.5 by weight: 4 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). will extrude the product grinding, and after 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of titanium dioxide, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents.
Embodiment 4
(1). with commercially available titanium dioxide and sec.-propyl (dioctyl pyrophosphate) titanic acid ester is pre-mixing in 97.5: 2.5 by weight, at 100～110 ℃ of dry method modifications, obtains the highly dispersible titanium dioxide powder.
(2). with highly dispersible titanium dioxide powder and E-12 (604) Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of step (1) is 23: 34.5: 39.5 by weight: 4 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). will extrude the product grinding, and after 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of titanium dioxide, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents.
Embodiment 5
(1). is pre-mixing in 98.5: 1.5 with commercially available titanium dioxide and barium sulfate (weight ratio 66: 34) by weight with stearic acid, at 100～110 ℃ of dry method modifications, obtains the composite granule of highly dispersible titanium dioxide and barium sulfate.
(2). with the highly dispersible titanium dioxide of step (1) and barium sulfate composite granule and E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents is 30: 30: 34.5 by weight: 5.5 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). will extrude the product grinding, and after 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of composite granule, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of titanium dioxide and barium sulfate.
Embodiment 6
(1). is pre-mixing in 98: 2 with commercially available titanium dioxide and barium sulfate (weight ratio 66: 34) by weight with aminosilane, at 100～110 ℃ of dry method modifications, obtains highly dispersible titanium dioxide and barium sulfate composite granule.
(2). with highly dispersible titanium dioxide and barium sulfate composite granule and E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents is 29: 31: 36 by weight: 4 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). will extrude the product grinding, and after 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of composite granule, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of titanium dioxide and barium sulfate.
Embodiment 7
(1). is pre-mixing in 97.5: 2.5 with commercially available titanium dioxide and barium sulfate (weight ratio 66: 34) by weight with tetra isopropyl two (dioctyl phosphite) titanic acid ester, at 100～110 ℃ of dry method modifications, obtain the composite granule of highly dispersible titanium dioxide and barium sulfate.
(2). with highly dispersible titanium dioxide and barium sulfate composite granule and E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents is 29: 30.5: 35 by weight: 5.5 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). will extrude the product grinding, and after 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of composite granule, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of titanium dioxide and barium sulfate.
Embodiment 8
(1). with commercially available titanium dioxide and barium sulfate (weight ratio 66: 34) and sec.-propyl (dioctyl pyrophosphate) titanic acid ester is pre-mixing in 98.5: 1.5 by weight, at 100～110 ℃ of dry method modifications, obtains the composite granule of highly dispersible titanium dioxide and barium sulfate.
(2). with highly dispersible titanium dioxide and barium sulfate composite granule and E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, 503 acrylic resin flow agents is 29: 30.5: 35 by weight: 5.5 batchings, and fully pre-mixing, under 120～130 ℃ condition, melt extrude, obtain extruding product.
(3). after will extruding product grinding, 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification; Wherein coating is made up of composite granule, E-12 (604) type Resins, epoxy, YZ9802 saturated polyester resin, the 503 acrylic resin flow agents of titanium dioxide and barium sulfate.
Claims (2)
1. white heat-curable epoxy polyester powder coating that possesses the scumbling stratification, it is characterized in that: described coating is made up of mineral dye powder, Resins, epoxy, vibrin and flow agent, wherein, mineral dye powder: Resins, epoxy: vibrin: the weight ratio of flow agent is 21～33: 28～34: 33～39: 3～6;
Described mineral dye powder is made up of mineral dye and properties-correcting agent, and the weight ratio of mineral dye and properties-correcting agent is 97.5～99.8: 0.2～2.5;
Described mineral dye is that titanium dioxide or titanium dioxide and barium sulfate weight ratio are 66: 34 composite granule;
Described properties-correcting agent is stearic acid, aminosilane, tetra isopropyl two (dioctyl phosphite) titanic acid ester or sec.-propyl (dioctyl pyrophosphate) titanic acid ester;
Described Resins, epoxy is E-12 type Resins, epoxy;
Described vibrin is a YZ9802 type saturated polyester resin;
Described flow agent is 503 acrylic resin flow agents.
2. preparation method who possesses the white heat-curable epoxy polyester powder coating of scumbling stratification as claimed in claim 1, it is characterized in that: this method comprises the following steps:
(1). with mineral dye and properties-correcting agent 97.5～99.8: 0.2～2.5 pre-mixing by weight,, obtain the mineral dye powder of polymolecularity at 100～110 ℃ of dry method modifications;
(2). be 21～33: 28～34: 33～39: 3～6 ratio batching and fully pre-mixing by weight with the mineral dye powder of the polymolecularity of step (1) and Resins, epoxy, vibrin and flow agent, under 120～130 ℃ condition, melt extrude, obtain extruding product;
(3). with step (2) extrude the product grinding, and after the 200 mesh sieve classifications, make the white heat-curable epoxy polyester powder coating that possesses the scumbling stratification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02155204 CN1228404C (en) | 2002-12-06 | 2002-12-06 | White thermosetting epoxy polyester powder coating with thin coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02155204 CN1228404C (en) | 2002-12-06 | 2002-12-06 | White thermosetting epoxy polyester powder coating with thin coating and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1506423A CN1506423A (en) | 2004-06-23 |
| CN1228404C true CN1228404C (en) | 2005-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02155204 Expired - Fee Related CN1228404C (en) | 2002-12-06 | 2002-12-06 | White thermosetting epoxy polyester powder coating with thin coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360453C (en) * | 2006-01-18 | 2008-01-09 | 哈尔滨智力伟业实业有限责任公司 | Method for preparing powder composition |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20051303A1 (en) * | 2005-07-08 | 2007-01-09 | Inxel S R L | METHOD FOR THE PRODUCTION OF THERMO-HARDENING POWDER COATINGS PARTICULARLY FOR THE APPLICATION BY ELECTROSTATIC SYSTEMS |
| JP6234678B2 (en) * | 2009-11-20 | 2017-11-22 | スリーエム イノベイティブ プロパティズ カンパニー | Inorganic pigment composition containing surface-modified nanoparticles and production method |
| CN101805556A (en) * | 2010-04-12 | 2010-08-18 | 安徽华辉塑业科技有限公司 | Thermosetting powder coating with high tenacity |
| CN103289523A (en) * | 2013-04-23 | 2013-09-11 | 安徽圣德建材科技有限公司 | Salt-spray- resistant powder paint and preparation method thereof |
| CN106883730A (en) * | 2017-03-20 | 2017-06-23 | 广州卓凡实验室设备科技有限公司 | Epoxy/polyester type powdery paints and preparation method thereof |
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2002
- 2002-12-06 CN CN 02155204 patent/CN1228404C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360453C (en) * | 2006-01-18 | 2008-01-09 | 哈尔滨智力伟业实业有限责任公司 | Method for preparing powder composition |
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