CN107828314A - anti-corrosive powder paint and preparation method thereof - Google Patents

anti-corrosive powder paint and preparation method thereof Download PDF

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Publication number
CN107828314A
CN107828314A CN201711103980.8A CN201711103980A CN107828314A CN 107828314 A CN107828314 A CN 107828314A CN 201711103980 A CN201711103980 A CN 201711103980A CN 107828314 A CN107828314 A CN 107828314A
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CN
China
Prior art keywords
preparation
powder paint
line style
epoxy resin
corrosive
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.)
Pending
Application number
CN201711103980.8A
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Chinese (zh)
Inventor
黎鹏
黎镪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Mayshow Chemical Technology Co Ltd
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Guangxi Mayshow Chemical Technology Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Guangxi Mayshow Chemical Technology Co Ltd filed Critical Guangxi Mayshow Chemical Technology Co Ltd
Priority to CN201711103980.8A priority Critical patent/CN107828314A/en
Publication of CN107828314A publication Critical patent/CN107828314A/en
Pending legal-status Critical Current

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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
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C09D163/04—Epoxynovolacs
    • 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
    • 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
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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)
  • Paints Or Removers (AREA)

Abstract

The present invention relates to a kind of anti-corrosive powder paint and preparation method thereof, more particularly to thermosetting powder coating technical field, in terms of the powdery paints is mainly used in reinforcement cable surface treatment, it is provided simultaneously with three main features, i.e.,：1st, superior antiseptic property, 2, remarkable pliability and adhesive force, 3, rapid curing film forming, formula composition is as follows：The phenol aldehyde modified epoxy resin A of line style：50% 60%, the phenol aldehyde modified epoxy resin B of line style：10% 15%, phenolic hydroxyl group resin 15% 18%, 2 methylimidazoles 1.2% 1.5%, PV88 levelling agents 1%, styrax 0.5%, blanc fixe 1% 19.5%, inorganic pigment 3%, gaseous oxidation aluminium 0.2%.

Description

Anti-corrosive powder paint and preparation method thereof
Technical field
The present invention relates to thermosetting powder coating technical field, more particularly to a kind of anti-corrosive powder paint and its preparation side Method.
Background technology
The reinforcement cable mechanics part important as building (particularly bridge), is related to its structure peace Entirely；Emphasize that the antiseptic and rustproof importance of reinforcement cable is not excessive anyway.Environmental protection and anti-corrosive properties due to powdery paints Can be superior the characteristics of, the antifouling paint for reinforcement cable is just gradually substituted by it.But the actual production of reinforcement cable and spray Really very high requirement is proposed during painting to powdery paints.On the one hand, reinforcement cable is by more than ten even tens processes The reinforcing bar knot of spraying forms, and its flexibility requirements to coating is especially high；On the other hand, due to the length of reinforcing bar is longer and by Heat heating is slower, for continuous continual production, very high requirement is proposed to the condition of cure of powdery paints, generally 200 In the case of degree Celsius, film forming solidification will be completed within several seconds.Summary is got off, and reinforcement cable powdery paints must possess following three Individual feature：
1st, superior antiseptic property；
2nd, remarkable pliability and adhesive force；
3rd, rapid curing film forming.
Traditional reinforcement cable powdery paints is to be developed from the reinforcing bar of concrete covering with powdery paints, no matter solid Changing the requirement of each side such as speed, anti-corrosion, pliability and adhesive force can not all mention in the same breath with reinforcement cable.Concrete covering Reinforcing bar does not have to twist into rope, can cut short and be discharged into baking oven and bake；And reinforcement cable is not all right, it can not arbitrarily cut short, Er Qiebi It need twist into a rope, to be also exposed under the environment of ultraviolet light and acid rain and receive the test of corrosion and ageing.It is former based on more than Cause, traditional reinforcing bar powdery paints are not too much suitable for reinforcement cable, develop and constantly improve new reinforcement cable and use Powdery paints is also just into thing extremely urgent in industry.
In view of it is above-mentioned the defects of, the design people is actively subject to research and innovation, is applied to found a kind of pure epoxy type powder Material and preparation method thereof, 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 anti-corrosive powder paint and preparation method thereof, should In terms of powdery paints is mainly used in reinforcement cable surface treatment, it is provided simultaneously with three main features, i.e.,：1st, superior anti-corrosion Performance, 2, remarkable pliability and adhesive force, 3, rapid curing film forming.
A kind of anti-corrosive powder paint of the present invention and preparation method thereof, formula composition is as follows：The phenol aldehyde modified epoxy resin of line style A：50%-60%, the phenol aldehyde modified epoxy resin B of line style：10%-15%, phenolic hydroxyl group resin 15%-18%, 2-methylimidazole 1.2%-1.5%, PV88 levelling agent 1%, styrax 0.5%, blanc fixe 1%-19.5%, inorganic pigment 3%, gas phase oxygen Change aluminium 0.2%.
Further, 2-methylimidazole is pharmaceutical rank.
Further, comprise the following steps：
1) material is weighed in prescription quality ratio, and is poured into compounding jar, is sufficiently mixed, and broken 60 seconds；
2) material mixed even into double screw extruder extrude, the area's temperature control of extruder one at 85~95 DEG C, Two area's temperature controls are at 95~105 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；
5) obtained powder is poured into bicone mixing tank, and mixes material after being proportionally added into and be well mixed, will be rear mixed Powder sieve and 160 mesh and pack by vibratory sieve.
Further, the powdered thing specification is D50: 35~48 μm.
Further, electrostatic spraying, by 200 DEG C of drying tunnels, is persistently toasted 10 seconds to preheated reinforcement cable surface Clock post-crosslinking is into polymer protective film.
By such scheme, the present invention at least has advantages below：(1) 180 DEG C are realized, completes solidification within 8 seconds；Typically Ground, 180 DEG C of powdery paints of traditional reinforcing bar, 40 seconds are the limit；(2) tested after 200 microns of electrostatic spraying thickness, pliability reaches φ 1mm, twist into cable or arbitrarily bend without splitting；(3) neutral salt spray test result reaches 3000 hours, chemical industry ministerial standard《HG/ T2006-2006：Thermosetting powder coating》It is required that it is 1000 hours, for 3 times of standard requirement.
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
Kind anti-corrosive powder paint and preparation method thereof, it is characterised in that：Formula composition is as follows：The phenol aldehyde modified asphalt mixtures modified by epoxy resin of line style Fat A：50%, the phenol aldehyde modified epoxy resin B of line style：10%, phenolic hydroxyl group resin 15%, 2-methylimidazole 1.2%, PV88 levelling agents 1%, styrax 0.5%, blanc fixe 19.5%, inorganic pigment 3%, gaseous oxidation aluminium 0.2%.2-methylimidazole is medicine Use rank.
Comprise the following steps：
1) material is weighed in prescription quality ratio, and is poured into compounding jar, is sufficiently mixed, and broken 60 seconds；
2) material mixed even into double screw extruder extrude, the area's temperature control of extruder one at 85~95 DEG C, Two area's temperature controls are at 95~105 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；
5) obtained powder is poured into bicone mixing tank, and mixes material after being proportionally added into and be well mixed, will be rear mixed Powder sieve and 160 mesh and pack by vibratory sieve.
The powdered thing specification is D50: 35~48 μm.Electrostatic spraying is to preheated reinforcement cable surface, by 200 DEG C drying tunnel, 10 seconds post-crosslinkings are persistently toasted into polymer protective film.
Based on the market demand, for the antiseptic property that reinforcement cable powdery paints is excellent, remarkable pliability is quick solid Three features such as film are melted into, the strict material of present invention process is selected and is formulated Precise spraying, by largely testing, looks for finally To improving the basic method of these indexs simultaneously, and a kind of flash solidification high tenacity double antiseptic powder coating is made.With The powdery paints that the present invention makes, it is possible to achieve 180 DEG C, complete solidification in 8 seconds；Tested after 200 microns of electrostatic spraying thickness, it is soft Toughness reaches φ 1mm, twists into cable without splitting；Neutral salt spray test result reaches 3000 hours.Reinforcement cable spray is fully achieved The requirement of painting.
The present invention while improving powdery paints reactivity, increases by strict material is selected and formula Precise spraying Strong high molecular linear structure, while the free group of collateral chain is rejected, a kind of flash solidification high tenacity has been made finally has prevented again Rotten powdery paints.Beneficial effects of the present invention include：180 DEG C are realized, completes solidification within 8 seconds；Usually, traditional reinforcing bar powder 180 DEG C of coating, 40 seconds are the limit；Tested after 200 microns of electrostatic spraying thickness, pliability reaches φ 1mm, twists into cable or random Bending is without splitting；Neutral salt spray test result reaches 3000 hours, chemical industry ministerial standard《HG/T2006-2006：Powder thermosetting applies Material》It is required that it is 1000 hours, for 3 times of standard requirement.
Embodiment 2
A kind of anti-corrosive powder paint and preparation method thereof, it is characterised in that：Formula composition is as follows：The phenol aldehyde modified epoxy of line style Resin A：55%, the phenol aldehyde modified epoxy resin B of line style：12.5%, phenolic hydroxyl group resin 16.5%, 2-methylimidazole 1.3%, PV88 Levelling agent 1%, styrax 0.5%, blanc fixe 10%, inorganic pigment 3%, gaseous oxidation aluminium 0.2%.
Embodiment 1 is different from, the present embodiment takes median, ensure that the feasibility of material, in price due to material Stoichiometric factor strengthens, and finished product effect further improves, and overall price/performance ratio is higher.
Embodiment 3
A kind of anti-corrosive powder paint and preparation method thereof, it is characterised in that：Formula composition is as follows：The phenol aldehyde modified epoxy of line style Resin A：60%, the phenol aldehyde modified epoxy resin B of line style：15%, phenolic hydroxyl group resin 18%, 2-methylimidazole 1.5%, PV88 levellings Agent 1%, styrax 0.5%, blanc fixe 1%, inorganic pigment 3%, gaseous oxidation aluminium 0.2%.
The present embodiment is different from above-described embodiment, and product combination property is stronger, is adapted to the spraying of large diameter reinforcing bar.
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 (5)

  1. A kind of 1. anti-corrosive powder paint and preparation method thereof, it is characterised in that：Formula composition is as follows：The phenol aldehyde modified asphalt mixtures modified by epoxy resin of line style Fat A：50%-60%, the phenol aldehyde modified epoxy resin B of line style：10%-15%, phenolic hydroxyl group resin 15%-18%, 2-methylimidazole 1.2%-1.5%, PV88 levelling agent 1%, styrax 0.5%, blanc fixe 1%-19.5%, inorganic pigment 3%, gas phase oxygen Change aluminium 0.2%.
  2. 2. anti-corrosive powder paint according to claim 1 and preparation method thereof, it is characterised in that：2-methylimidazole is medicine Use rank.
  3. 3. anti-corrosive powder paint according to claim 1 and preparation method thereof, it is characterised in that：Comprise the following steps：
    1) material is weighed in prescription quality ratio, and is poured into compounding jar, is sufficiently mixed, and broken 60 seconds；
    2) material mixed is extruded even into double screw extruder, and the area's temperature control of extruder one is at 85~95 DEG C, 2nd area Temperature control is at 95~105 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；
    5) obtained powder is poured into bicone mixing tank, and mixes material after being proportionally added into and be well mixed, by rear mixed powder End is by vibratory sieve 160 mesh of sieving and packs.
  4. 4. anti-corrosive powder paint according to claim 3 and preparation method thereof, it is characterised in that：The powdered thing specification For D50：35~48 μm.
  5. 5. pure epoxy type powder coating according to claim 1 and preparation method thereof, it is characterised in that：Electrostatic spraying to warp The reinforcement cable surface of preheating, by 200 DEG C of drying tunnels, 10 seconds post-crosslinkings are persistently toasted into polymer protective film.
CN201711103980.8A 2017-11-09 2017-11-09 anti-corrosive powder paint and preparation method thereof Pending CN107828314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711103980.8A CN107828314A (en) 2017-11-09 2017-11-09 anti-corrosive powder paint and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711103980.8A CN107828314A (en) 2017-11-09 2017-11-09 anti-corrosive powder paint and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107828314A true CN107828314A (en) 2018-03-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115746674A (en) * 2022-11-15 2023-03-07 擎天材料科技有限公司 High-toughness powder coating for spring and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115746674A (en) * 2022-11-15 2023-03-07 擎天材料科技有限公司 High-toughness powder coating for spring and preparation method thereof
CN115746674B (en) * 2022-11-15 2024-04-02 擎天材料科技有限公司 High-toughness powder coating for springs and preparation method thereof

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Application publication date: 20180323