CN104861830A - Coil steel anti-scratching finish paint - Google Patents
Coil steel anti-scratching finish paint Download PDFInfo
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- CN104861830A CN104861830A CN201510287548.3A CN201510287548A CN104861830A CN 104861830 A CN104861830 A CN 104861830A CN 201510287548 A CN201510287548 A CN 201510287548A CN 104861830 A CN104861830 A CN 104861830A
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Abstract
The invention discloses coil steel anti-scratching finish paint. The finish paint comprises the following components in parts by weight: 45-55 parts of polyester resin, 5-15 parts of amino resin, 1-3 parts of polyethylene wax and 1-3 parts of polytetrafluoroethylene wax. The finish paint coating has the advantages that the situation of coating scratching caused by storage, moving and dragging friction during steel plate construction can be effectively improved, and thus the trouble of secondary maintenance is avoided and the cost is saved.
Description
Technical field
The present invention relates to coil steel coating field.More specifically, a kind of coil anti scuffing finish paint is related to.
Background technology
From the thirties pre-coated coil after the U.S. occurs, for the coil coating of industrial electrical equipment and building structure under the strong promotion of National Juan Tu association and Liang great pioneer mechanism of European Juan Tu association, obtain flourish, and promote all over the world rapidly and come.Preliminary larquering is carried out to the steel band sheet material of rolling, except the direct economic benefit with regenerative ratio, the more important thing is the beautifying and decorating to finished product and corrosion protection effect, extend the work-ing life of finished product, improve use value.The finish paint of coil steel coating, possesses splendid ornamental, impact bending processibility and useful life longevity.But due to domestic some coil steel materials construction processing site condition, environment and manual operation factor and non-good, often cause the topcoat scratch of coiled steel plate, scratch, thus produce all worries of repairing in plate face, therefore develop a kind of coil steel coating finish paint and reach anti scuffing effect and receive much concern.
Summary of the invention
One object of the present invention is to provide a kind of coil anti scuffing finish paint, and store when this topcoat paint effectively can improve steel plate construction, copy mechanically, the coating scratch that dilatory friction causes scratches, thus avoids the trouble and the cost saving that produce secondary maintenance.
For achieving the above object, the present invention adopts following technical proposals:
A kind of coil anti scuffing finish paint, described finish paint comprises the component of following weight part:
The number-average molecular weight of described vibrin is 4000-20000, and hydroxyl value is 50-70mgKOH/g, and acid number is 0-10mgKOH/g, Gu containing being 58-62%.
The particle size range of described polyethylene wax and tetrafluoroethylene wax is 5-15 micron, and proportion is 1.0-1.5g/ml.
Polyethylene wax and tetrafluoroethylene wax can make coating surface smooth, reduce surface tension, strengthen paint film scratch resistance; Polyethylene wax and tetrafluoroethylene wax frictional coefficient extremely low, there is superior wear resistance, sliding, scratch resistance and thermotolerance and chemical resistant properties, use a certain proportion of polyethylene wax and tetrafluoroethylene wax to add in coating, make coating surface have frictional coefficient low, hydrophobic, not easily attach dirt and scratch resistance.
Preferably, described finish paint also comprises pigment, auxiliary agent and solvent; Described
Pigment 25-35 part;
Auxiliary agent 3-8 part;
Solvent 8-25 part.
Preferably, described vibrin is selected from saturated polyester resin, and acid number is 6-10mgKOH/g.The vibrin that the present invention selects has middle lower molecular weight, high reaction activity, and sticking power is good, and snappiness is good, has excellent weather resistance.
Preferably, described aminoresin is selected from complete methyl-etherified trimeric cyanamide or part methyl-etherified trimeric cyanamide.
Preferably, described auxiliary agent is selected from one or more in dispersion agent, catalyzer, defoamer, flow agent, matting agent.Described dispersion agent is selected from BYK-170; Catalyzer is selected from NACURE 1051; Defoamer is selected from LEVELER T (NPZ); Flow agent is selected from LEVELER C (NPZ); Matting agent is selected from SYLOIDED3.
Prepare a method for coil anti scuffing finish paint, comprise the steps:
1) by vibrin, dispersion agent, pigment, anti-settling agent mixing, add solvent, grinding, obtains slurry;
2) in step 1) add vibrin, aminoresin, mixing in the slurry that obtains; Add polyethylene wax and tetrafluoroethylene wax, acid catalyst, flow agent, defoamer, matting agent and solvent, obtain coil anti scuffing finish paint.
Preferably, step 1) and step 2) described in the gross score of vibrin be 45-55 part; Described in step 1 and step 2, total number of solvent is 8-25 part.
Preferably, step 1) and step 2) described in total number of dispersion agent, anti-settling agent, acid catalyst, defoamer, flow agent and matting agent be 3-8 part.
Preferably, step 1) described in pigment be 25-35 part, step 2) described polyethylene wax is 1-3 part; Described tetrafluoroethylene wax is 1-3 part.
Beneficial effect of the present invention is as follows:
The finish paint of formulation for coating material preparation of the present invention, can ensure that coating is not scratched under the gravitational conditions of two kilograms.
Embodiment
In order to be illustrated more clearly in the present invention, below in conjunction with preferred embodiment, the present invention is described further.It will be appreciated by those skilled in the art that specifically described content is illustrative and nonrestrictive, should not limit the scope of the invention with this below.
The source that the present invention is raw materials used:
Saturated polyester resin in high-end coil coating selected by described vibrin, such as, and the R-4304RESIN (NPZ) etc. of NIPPON PAINT.
Described dispersion agent selects dispersion agent conventional in common coil coating, such as, and the BYK-170 etc. of German Bi Ke chemical company.
Described titanium dioxide selects titanium dioxide conventional in common coil coating, such as, and the titanium dioxide R-996 etc. of Long Mang company.
Anti-settling agent conventional in common coil coating selected by described anti-settling auxiliary agent, such as, and the Aerosil R972 etc. of goldschmidt chemical corporation.
Described aminoresin selects aminoresin conventional in common coil coating, such as, and the CYMEL303 etc. of Qing Te company.
Described polyethylene wax selects polyethylene wax conventional in common coil coating, such as, and the PEW-0200 etc. of Tian Shi novel material scientific & technical corporation.
Tetrafluoroethylene wax conventional in common coil coating selected by described tetrafluoroethylene wax, such as, and the PTFE-0104 etc. of Tian Shi novel material scientific & technical corporation.
Acid catalyst conventional in common coil coating selected by described acid catalyst, such as, and the NACURE1051 etc. of Jin Shi company of the U.S..
Described flow agent selects flow agent conventional in common coil coating, such as, and the LEVELER C etc. of NIPPON PAINT.
Defoamer conventional in common coil coating selected by described defoamer, such as, and the LEVELER T etc. of NIPPON PAINT.
Matting agent conventional in common coil coating selected by described matting agent, such as, and the SYLOID ED3 etc. of W. R. Grace & Co.
Embodiment 1
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 28 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 30 parts, anti-settling auxiliary agent A erosil R972 0.2 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 25 parts, aminoresin CYMEL303 9 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 1 part, add tetrafluoroethylene wax PTFE-0104 1 part, acid catalyst NACURE1051 0.2 part, flow agent LEVELER C1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 2 parts, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; The ratio of solid part of vibrin and solid part of aminoresin is 3.7, and resin-pigment ratio is 0.94.
This coating can solidify at PMT metal sheet temperature 224 ± 5 DEG C, and the performance under dry coating film thickness 18 μm is (see table 1):
Test result under table 1 embodiment 1 condition
| Interventions Requested | Test rating | The method of inspection |
| Gloss (60 °) | 40±2° | GB/T 13448-20065 |
| Pliability test | 1T is without peeling off, and nothing falls particle | GB/T 13448-20067 |
| Reverse impact is tested | >=9J, and without falling particle | GB/T 13448-20068 |
| Organic solvent-resistant | ≥120 | GB/T 13448-200610 |
| Pencil hardness test | >=3H (Mitsubishi's pencil) | GB/T 13448-20069 |
| Damage resistant is tested | Be greater than 5 times (2kg weight) | GB/T 13448-200612 |
| QUVA tests (1500h) | Loss of gloss grade is better than equaling 2 grades | GB/T 13448-200623 |
| Salt-fog test (500h) | Average corrosion spreads distance≤2 millimeters | GB/T 13448-200618 |
Embodiment 2
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 25 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 25 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 20 parts, aminoresin CYMEL303 7 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 1 part, add tetrafluoroethylene wax PTFE-0104 1 part, acid catalyst NACURE1051 0.2 part, flow agent LEVELER C 1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 4, and resin-pigment ratio is 0.92.
Result is similar to Example 1.
Embodiment 3
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 30 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 25 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 25 parts, aminoresin CYMEL303 6 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 1 part, add tetrafluoroethylene wax PTFE-0104 1 part, acid catalyst NACURE1051 0.3 part, flow agent LEVELER C 1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 5.79, and resin-pigment ratio is 0.76.
Result is similar to Example 1.
Embodiment 4
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 25 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 25 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 20 parts, aminoresin CYMEL303 7 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 3 parts, add tetrafluoroethylene wax PTFE-0104 2 parts, acid catalyst NACURE1051 0.2 part, flow agent LEVELER C 1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 4, and resin-pigment ratio is 0.92.
Result is similar to Example 1.
Embodiment 5
With embodiment 3, difference is: described solvent S-150 wherein changes dimethylbenzene into.
Result is similar to Example 1.
Comparative example 1
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 25 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 25 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 20 parts, aminoresin CYMEL303 7 parts is added in the slurry, mixing; Add acid catalyst NACURE1051 0.2 part, flow agent LEVELER C 1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtain coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 4, and resin-pigment ratio is 0.92.
Owing to not adding polyethylene wax and tetrafluoroethylene wax in coating, coating does not possess resistance to marring, can not stand to be tested by damage resistant, performance inconsistency lattice.
Comparative example 2
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 25 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 30 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 20 parts, aminoresin CYMEL303 4 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 1 part, add tetrafluoroethylene wax PTFE-0104 1 part, acid catalyst NACURE1051 0.2 part, flow agent LEVELER C1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 7.1, and resin-pigment ratio is 1.11.
Because polyester ratio is too much, part does not participate in reaction, and the paint film after film forming is excessively soft, and organic solvent-resistant is poor, performance inconsistency lattice.
Comparative example 3
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 25 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 25 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 20 parts, aminoresin CYMEL303 18 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 1 part, add tetrafluoroethylene wax PTFE-0104 1 part, acid catalyst NACURE1051 0.2 part, flow agent LEVELER C 1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 1.6, and resin-pigment ratio is 0.92.
Because amino is too much, cross-linking density is excessive, and the paint film after film forming is excessively crisp, and T is curved poor, performance inconsistency lattice.
Comparative example 4
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 30 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 25 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 25 parts, aminoresin CYMEL303 6 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 5 parts, add tetrafluoroethylene wax PTFE-0104 5 parts, acid catalyst NACURE1051 0.3 part, flow agent LEVELER C 1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 5.79, and resin-pigment ratio is 0.76.
Due to polyethylene wax and tetrafluoroethylene wax excessive, cause coating application levelling poor, plate face poor effect, affects coating waste water simultaneously, affects paint film appearance.
Comparative example 5
A preparation method for coil anti scuffing finish paint, comprises the following steps:
1) by vibrin R-4304RESIN (NPZ) 30 parts, dispersant B YK-170 1 part, tinting pigment titanium dioxide R-996 50 parts, anti-settling auxiliary agent A erosil R972 0.5 part, mixing, adds solvent 4 ~ 10 parts, and grinding, obtains slurry;
2) vibrin R-4304RESIN (NPZ) 25 parts, aminoresin CYMEL303 6 parts is added in the slurry, mixing; Add polyethylene wax PEW-0200 1 part, add tetrafluoroethylene wax PTFE-0104 1 part, acid catalyst NACURE1051 0.3 part, flow agent LEVELER C 1 part, defoamer LEVELER T 1 part, matting agent SYLOID ED3 1 part, solvent 4 ~ 15 parts, obtains coil anti scuffing finish paint.
Solid part per-cent of vibrin is 58 ~ 62%, and solid part per-cent of aminoresin is 90-100%; Amino-Polyester ratio is 5.79, and resin-pigment ratio is 1.5.
Because pigment is too much, resin-pigment ratio is excessive, and resin-phase, to very little, affects the gentle coating appearance of paint flow, affects coating application.
Obviously; the above embodiment of the present invention is only for example of the present invention is clearly described; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all embodiments, every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (10)
1. a coil anti scuffing finish paint, is characterized in that, described finish paint comprises the component of following weight part:
。
2. coil anti scuffing finish paint according to claim 1, is characterized in that: the number-average molecular weight of described vibrin is 4000-20000, and hydroxyl value is 50-70mgKOH/g, and acid number is 0-10mgKOH/g, Gu containing being 58-62%.
3. coil anti scuffing finish paint according to claim 1, is characterized in that: the particle size range of described polyethylene wax and tetrafluoroethylene wax is 5-15 micron, and proportion is 1.0-1.5g/ml.
4. coil anti scuffing finish paint according to claim 1, it is characterized in that, described finish paint also comprises pigment, auxiliary agent and solvent; Described
Pigment 25-35 part;
Auxiliary agent 3-8 part;
Solvent 8-25 part.
5. coil anti scuffing finish paint according to claim 1, is characterized in that: described aminoresin is selected from complete methyl-etherified trimeric cyanamide or part methyl-etherified trimeric cyanamide.
6. coil anti scuffing finish paint according to claim 4, is characterized in that: described auxiliary agent be selected from dispersion agent, catalyzer, defoamer, flow agent, matting agent one or more.
7. the preparation method of the coil anti scuffing finish paint as described in any one of claim 1-5, is characterized in that, comprise the following steps:
1) by vibrin, dispersion agent, pigment, anti-settling agent mixing, add solvent, grinding, obtains slurry;
2) in step 1) add vibrin, aminoresin, mixing in the slurry that obtains; Add polyethylene wax and tetrafluoroethylene wax, acid catalyst, flow agent, defoamer, matting agent and solvent, obtain coil anti scuffing finish paint.
8. preparation method according to claim 7, is characterized in that: step 1) and step 2) described in total number of vibrin be 45-55 part; Step 1) and step 2) described in total number of solvent be 8-25 part.
9. preparation method according to claim 7, is characterized in that: step 1) and step 2) described in total number of dispersion agent, anti-settling agent, acid catalyst, defoamer, flow agent and matting agent be 3-8 part.
10. preparation method according to claim 7, is characterized in that: step 1) described in pigment be 25-35 part; Step 2) described polyethylene wax is 1-3 part; Described tetrafluoroethylene wax is 1-3 part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510287548.3A CN104861830B (en) | 2015-05-29 | 2015-05-29 | A kind of coil anti scuffing finish paint |
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| CN201510287548.3A CN104861830B (en) | 2015-05-29 | 2015-05-29 | A kind of coil anti scuffing finish paint |
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| CN104861830B CN104861830B (en) | 2017-07-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105670486A (en) * | 2016-03-07 | 2016-06-15 | 广州立邦涂料有限公司 | Acid and alkali resistant polyurethane primer and preparation method thereof |
| CN107384147A (en) * | 2017-07-21 | 2017-11-24 | 新丰惠泽涂料有限公司 | A kind of high-performance household electrical appliances precoated coil coating and preparation method thereof |
| CN108264827A (en) * | 2018-02-08 | 2018-07-10 | 合肥达户电线电缆科技有限公司 | A kind of environmental protection scratch-resistant coating and preparation method thereof |
| CN115960521A (en) * | 2022-12-21 | 2023-04-14 | 无锡华东锌盾科技有限公司 | Coiled material self-cleaning coating and preparation method and application thereof |
Citations (1)
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| CN104031535A (en) * | 2014-06-26 | 2014-09-10 | 立邦涂料（天津）有限公司 | Novel low-matte polyester finish coating and preparation method thereof |
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2015
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104031535A (en) * | 2014-06-26 | 2014-09-10 | 立邦涂料（天津）有限公司 | Novel low-matte polyester finish coating and preparation method thereof |
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| 郭淑静等: "《国内外涂料助剂品种手册》", 30 April 2005, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670486A (en) * | 2016-03-07 | 2016-06-15 | 广州立邦涂料有限公司 | Acid and alkali resistant polyurethane primer and preparation method thereof |
| CN107384147A (en) * | 2017-07-21 | 2017-11-24 | 新丰惠泽涂料有限公司 | A kind of high-performance household electrical appliances precoated coil coating and preparation method thereof |
| CN108264827A (en) * | 2018-02-08 | 2018-07-10 | 合肥达户电线电缆科技有限公司 | A kind of environmental protection scratch-resistant coating and preparation method thereof |
| CN115960521A (en) * | 2022-12-21 | 2023-04-14 | 无锡华东锌盾科技有限公司 | Coiled material self-cleaning coating and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN104861830B (en) | 2017-07-18 |
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