CN103351784A - Rolling painting fusion bonded epoxy powder coating and preparation method thereof - Google Patents
Rolling painting fusion bonded epoxy powder coating and preparation method thereof Download PDFInfo
- Publication number
- CN103351784A CN103351784A CN2013103062541A CN201310306254A CN103351784A CN 103351784 A CN103351784 A CN 103351784A CN 2013103062541 A CN2013103062541 A CN 2013103062541A CN 201310306254 A CN201310306254 A CN 201310306254A CN 103351784 A CN103351784 A CN 103351784A
- Authority
- CN
- China
- Prior art keywords
- powder coating
- epoxy powder
- epoxy
- clinkery
- rolling application
- 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
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention provides a rolling painting fusion bonded epoxy powder coating and a preparation method thereof. The rolling painting fusion bonded epoxy powder coating comprises the following components by weight percent: 50-65 percent of polyphenol modified epoxy resin, 10-20 percent of phenolic curing agent, 0.2-0.8 percent of flatting agent, 20-30 percent of filler, 0.5-1.0 percent of pigment and 0.2-1.0 percent of coupling agent. The preparation method comprises the steps of premixing, extruding and grinding. The rolling painting fusion bonded epoxy powder coating provided by the invention can improve the screen capacity, as well as the heat resistance and chemical resistance, and has a strong adhesive force.
Description
Technical field
The present invention relates to the pipeline anti-corrosive paint technical field of On The Oil And Gas Transportation Project, particularly a kind of rolling application clinkery epoxy powder coating and preparation method.
Background technology
Clinkery epoxy powder is a kind of thermosetting powder coating(s) (heat fused take Resins, epoxy as base-material, then film-forming, no longer meet later on hot melt), be applied to the history in existing more than 50 year in pipeline corrosion protection field, the pipeline of the epoxide powder coating coating antiseptic of being on active service is the earliest now also still being brought into play their effect.Clinkery epoxy powder coating is a kind of solid coating of carrying and disperseing take air as carrier, be applied over through the steel product of preheating it surperficial, fusing, levelling, solidify to form together uniformly coating, therefore get this name, English name Fusion Bonding Epoxy Powder Coatings is called for short FBE.Each particle of clinkery epoxy powder comprises repertoire equably, makes the operating process of coating and the coating of formation all have the homogeneity of continous-stable.Its excellent physicals, chemical property, use properties, endurance quality, safety and environmental protection performance, (coating is thin for economy, only has 300-500 μ m, cost is low) obtain anticorrosion boundary and generally approve, demonstrate its powerful vitality, stand the test of practice and time, be widely used in the aspects such as water delivery, oil transportation, gas transmission, and bringing into play its unique effect.
Although undergroundly do not contain extremely strong corrosive chemicals, but the underground water of buried pipeline Long Term Contact saliferous, the various organic acids of the microorganisms in the soil, and stray current, meeting produces electrochemical reaction and corrodes, and the three elements of well-known galvanic corrosion are: water, oxygen and ion.The clinkery epoxy powder coating is a kind of polymer film, slow above-mentioned three factors of ground resistance sees through and the performance corrosion-resisting function in various degree, how to reduce better water-permeable, oxygen-permeable, ionic permeability, water-absorbent, improve second-order transition temperature Tg, making epoxy coat have excellent screening ability, is the key of dealing with problems.
Summary of the invention
The technical problem that the present invention solves is to overcome the above-mentioned deficiency on the prior art, and a kind of screening ability is excellent, antiseptic property is good rolling application clinkery epoxy powder coating and preparation method are provided.
Technical scheme of the present invention is achieved in that a kind of rolling application clinkery epoxy powder coating, by weight percentage, comprise following component: polyphenol type modified epoxy 50～65%, phenols curing agent 10～20%, flow agent 0.2～0.8%, filler 20～30%, pigment 0.5～1.0%, coupling agent 0.2～1.0%.
Wherein, preferably, the structural formula of described polyphenol type modified epoxy is following any one:
Wherein, preferably, described filler is that weight ratio is titanium dioxide: wollastonite powder: the mixture of carbon black=2～4:20～25:0.2～0.8.
Wherein, preferably, described filler is Nano filling.
The present invention also provides the preparation method of rolling application clinkery epoxy powder coating, may further comprise the steps:
1) premix: the polyphenol type modified epoxy that proportioning is good, phenols curing agent, flow agent, filler, pigment, coupling agent add to be with in the high-speed mixer of pulverizing and mixed 8-10 minute;
2) extrude: mixed raw material is added in the twin-screw extrusion equipment, and temperature is controlled at 90～110 ℃, 300～500 rev/mins of rotating speeds;
3) grind: step 2 gained material is added in the pulverizing mill pulverize.
Wherein, preferably, the granularity of powder particle was 60～80 μ m after described step 3 was pulverized.
The resin that general epoxy coating uses is bisphenol A type epoxy resin, and molecular structure is:
The two ends of common bisphenol A epoxide resin molecule are the very strong epoxy group(ing) of response capacity, many ehter bonds are arranged on the molecular backbone chain, it is a kind of line style polyether structure, on the larger molecular resin chain of n value regularly, many secondary hydroxyls appear in apart from each other ground, can regard a kind of long-chain polyhydric alcohol as, also have a large amount of phenyl ring, methyne and sec.-propyl on the main chain.Each structural unit of Resins, epoxy is given the resin following functions: epoxy group(ing) and hydroxyl are given resin reaction, make resin cured matter have very strong force of cohesion and bonding force.Ether is good for and hydroxyl is polar group, helps to improve wetting property and adhesive power.Ether is strong to make macromole have kindliness with the C-C key.Phenyl ring is given polymkeric substance with thermotolerance and rigidity.Sec.-propyl also invests the certain rigidity of macromole.The bond energy of-C-O-key is high, thereby has improved alkali resistance.
But, from common dihydroxyphenyl propane epoxy resin structural, to find out, only on end group, the cross-linking density of therefore filming is low, has good snappiness for epoxy group(ing), but chemical-resistant, high thermal resistance are relatively relatively poor.The Resins, epoxy that our clinkery epoxy powder uses is polyphenol type modified epoxy, namely on the basis of bisphenol A epoxide resin with phenolic aldehyde or cresoform Resins, epoxy or other polyphenol type epoxy resin modification.
The present invention has following beneficial effect:
1. the present invention adopts polyphenol type Resins, epoxy, containing the epoxy group(ing) more than 2 on each epoxy molecule of this resinoid, is multiple functionality epoxide resin, so its reactivity is very strong, cross-linking density is large, films to have excellent thermotolerance, chemical resistant properties and very high second-order transition temperature Tg and hardness.
2. color stuffing coupling agent treatment of the present invention, coupling agent is a kind of bifunctional molecule, like this coupling agent molecule one end and mineral filler, pigment reaction, the other end and Resins, epoxy reaction, whole like this coating is combined closely into as a whole, improve compactness and the sticking power of coating, reduced water-absorbent, strengthened salt spray resistance, sea water resistance and anti-cathodic disbonding ability.
3. the present invention adds Nano filling, and traditional performance of coating is greatly improved, and gives the many new characteristics of coating and performance.The nanometer epoxy coating can be improved in the mechanical property of routine such as sticking power, hardness, abrasion resistance, shock resistance, flexibility, also might improve the performances such as ageing-resistant, the anti-solvent of coating, corrosion-resistant, radioprotective, anti-contamination.
4. in the preparation process of the present invention, powder coating will pass through aftertreatment, namely will adopt shredder to carry out surface treatment, makes powder particle near spherical, uses good fluidity, and coating is even, and is easy and simple to handle.
Embodiment
The below is clearly and completely described the technical scheme in the embodiment of the invention, and obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
Embodiment 1
The present embodiment a kind of rolling application clinkery epoxy powder coating is provided, by weight percentage, comprise following component: polyphenol type modified epoxy 60%, phenols curing agent 15%, flow agent 0.5%, titanium dioxide 3%, wollastonite powder 20%, carbon black 0.5%, coupling agent 0.5%, pigment 0.5%.
Above-mentioned rolling application clinkery epoxy powder coating is prepared according to the following steps:
1) premix: polyphenol type modified epoxy, phenols curing agent, flow agent, titanium dioxide that proportioning is good, wollastonite powder, carbon black, pigment and coupling agent add to be with in the high-speed mixer of pulverizing and mixed 10 minutes;
2) extrude: mixed raw material is added in the twin-screw extrusion equipment, and temperature is controlled at 100 ℃, 400 rev/mins of rotating speeds;
3) grind: step 2 gained material is added in the pulverizing mill pulverize.
The structural formula of the polyphenol type modified epoxy that this real embodiment is used is as follows:
Its performance index of rolling application clinkery epoxy powder coating that the present embodiment makes are as shown in table 1.
Embodiment 2
The present embodiment a kind of rolling application clinkery epoxy powder coating is provided, by weight percentage, comprise following component: polyphenol type modified epoxy 50%, phenols curing agent 20%, flow agent 0.5%, titanium dioxide 4%, wollastonite powder 24%, carbon black 0.5%, coupling agent 0.2%, pigment 0.8%.
Above-mentioned rolling application clinkery epoxy powder coating is prepared according to the following steps:
1) premix: polyphenol type modified epoxy, phenols curing agent, flow agent, titanium dioxide that proportioning is good, wollastonite powder, carbon black, pigment, coupling agent add to be with in the high-speed mixer of pulverizing and mixed 8 minutes;
2) extrude: mixed raw material is added in the twin-screw extrusion equipment, and temperature is controlled at 110 ℃, 300 rev/mins of rotating speeds;
3) grind: step 2 gained material is added in the pulverizing mill pulverize.
The structural formula of the polyphenol type modified epoxy that this real embodiment is used is as follows:
Its performance index of rolling application clinkery epoxy powder coating that the present embodiment makes are as shown in table 1.
Embodiment 3
The present embodiment a kind of rolling application clinkery epoxy powder coating is provided, by weight percentage, comprise following component: polyphenol type modified epoxy 65%, phenols curing agent 10%, flow agent 0.3%, titanium dioxide 3%, wollastonite powder 20%, carbon black 0.8%, coupling agent 0.7%, pigment 0.2%.
Above-mentioned rolling application clinkery epoxy powder coating is prepared according to the following steps:
1) premix: polyphenol type modified epoxy, phenols curing agent, flow agent, titanium dioxide that proportioning is good, wollastonite powder, carbon black, pigment, coupling agent add to be with in the high-speed mixer of pulverizing and mixed 10 minutes;
2) extrude: mixed raw material is added in the twin-screw extrusion equipment, and temperature is controlled at 100 ℃, 400 rev/mins of rotating speeds;
3) grind: step 2 gained material is added in the pulverizing mill pulverize.
The structural formula of the polyphenol type modified epoxy that this real embodiment is used is as follows:
Its performance index of rolling application clinkery epoxy powder coating that the present embodiment makes are as shown in table 1.
Embodiment 4
The present embodiment a kind of rolling application clinkery epoxy powder coating is provided, by weight percentage, comprise following component: polyphenol type modified epoxy 55%, phenols curing agent 15%, flow agent 0.2%, titanium dioxide 3%, wollastonite powder 25%, carbon black 0.3%, coupling agent 1.0%, pigment 0.5%.
Above-mentioned rolling application clinkery epoxy powder coating is prepared according to the following steps:
1) premix: polyphenol type modified epoxy, phenols curing agent, flow agent, titanium dioxide that proportioning is good, wollastonite powder, carbon black, pigment, coupling agent add to be with in the high-speed mixer of pulverizing and mixed 10 minutes;
2) extrude: mixed raw material is added in the twin-screw extrusion equipment, and temperature is controlled at 100 ℃, 400 rev/mins of rotating speeds;
3) grind: step 2 gained material is added in the pulverizing mill pulverize.
The structural formula of the polyphenol type modified epoxy that this real embodiment is used is as follows:
Its performance index of rolling application clinkery epoxy powder coating that the present embodiment makes are as shown in table 1.
Table 1 clinkery epoxy powder coating index
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a rolling application clinkery epoxy powder coating is characterized in that, by weight percentage, comprise following component: polyphenol type modified epoxy 50～65%, phenols curing agent 10～20%, flow agent 0.2～0.8%, filler 20～30%, pigment 0.5～1.0%, coupling agent 0.2～1.0%.
2. a kind of rolling application clinkery epoxy powder coating according to claim 1 is characterized in that, the structural formula of described polyphenol type modified epoxy is following any one:
3. a kind of rolling application clinkery epoxy powder coating according to claim 1 is characterized in that, described filler is that weight ratio is titanium dioxide: wollastonite powder: the mixture of carbon black=2～4:20～25:0.2～0.8.
4. a kind of rolling application clinkery epoxy powder coating according to claim 1 is characterized in that, described filler is Nano filling.
5. the preparation method of a rolling application clinkery epoxy powder coating claimed in claim 1 is characterized in that, may further comprise the steps:
1) premix: the polyphenol type modified epoxy that proportioning is good, phenols curing agent, flow agent, filler, pigment and coupling agent add to be with in the high-speed mixer of pulverizing and mixed 8-10 minute;
2) extrude: mixed raw material is added in the twin-screw extrusion equipment, and temperature is controlled at 90～110 ℃, 300～500 rev/mins of rotating speeds;
3) grind: step 2 gained material is added in the pulverizing mill pulverize.
6. the preparation method of rolling application clinkery epoxy powder coating according to claim 5 is characterized in that, the granularity of powder particle was 60～80 μ m after described step 3 was pulverized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103062541A CN103351784A (en) | 2013-07-19 | 2013-07-19 | Rolling painting fusion bonded epoxy powder coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103062541A CN103351784A (en) | 2013-07-19 | 2013-07-19 | Rolling painting fusion bonded epoxy powder coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103351784A true CN103351784A (en) | 2013-10-16 |
Family
ID=49308203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103062541A Pending CN103351784A (en) | 2013-07-19 | 2013-07-19 | Rolling painting fusion bonded epoxy powder coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103351784A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385299A (en) * | 2015-12-14 | 2016-03-09 | 巨野浩远粉末有限公司 | Environmentally-friendly glass powdery coating and preparation method thereof |
| CN113930133A (en) * | 2021-11-18 | 2022-01-14 | 山东东宏管业股份有限公司 | Heavy-duty anticorrosion fusion-bonding epoxy powder coating special for roll coating of large-diameter steel pipe and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733853A (en) * | 2005-06-01 | 2006-02-15 | 兰州理工大学 | FBE phenolic modified epoxy powder coating and preparation method thereof |
| CN101698775A (en) * | 2009-09-18 | 2010-04-28 | 上海海隆赛能新材料有限公司 | Fused-bonded epoxy powder paint with high resistance to cathodic disbonding |
| CN103146286A (en) * | 2012-12-27 | 2013-06-12 | 上海海隆赛能新材料有限公司 | Fast cured epoxy powder coating composition and preparation method thereof |
-
2013
- 2013-07-19 CN CN2013103062541A patent/CN103351784A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733853A (en) * | 2005-06-01 | 2006-02-15 | 兰州理工大学 | FBE phenolic modified epoxy powder coating and preparation method thereof |
| CN101698775A (en) * | 2009-09-18 | 2010-04-28 | 上海海隆赛能新材料有限公司 | Fused-bonded epoxy powder paint with high resistance to cathodic disbonding |
| CN103146286A (en) * | 2012-12-27 | 2013-06-12 | 上海海隆赛能新材料有限公司 | Fast cured epoxy powder coating composition and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李正仁等: "《金属表面粉末涂装》", 31 January 2010, 化学工业出版社 北京, article "熔结环氧粉末的防腐特点", pages: 286 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385299A (en) * | 2015-12-14 | 2016-03-09 | 巨野浩远粉末有限公司 | Environmentally-friendly glass powdery coating and preparation method thereof |
| CN113930133A (en) * | 2021-11-18 | 2022-01-14 | 山东东宏管业股份有限公司 | Heavy-duty anticorrosion fusion-bonding epoxy powder coating special for roll coating of large-diameter steel pipe and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105925145A (en) | High-performance anti-corrosion epoxy powder coating | |
| CN104245875B (en) | Epoxy adhesive composition | |
| CN102464934B (en) | Epoxy powder coating suitable for low-temperature coating | |
| CN107916047A (en) | Graphene anticorrosive paint and preparation method | |
| CN102618148A (en) | Epoxy coating and preparation method and application thereof | |
| CN104087125B (en) | A kind of ocean Epoxy zinc-rich anticorrosive powdery paint and preparation method thereof | |
| CN102732201B (en) | Wear-resistant and weather-resistant epoxy resin coating adhesive and its preparation method | |
| CN102533061B (en) | High-solid-content superhigh-corrosion-resistant water-based epoxy static conductive paint and preparation method thereof | |
| CN102993913B (en) | A kind of solvent free corrosion prevention coating for Directional Drilling poling road and preparation method thereof | |
| CN106189719A (en) | A kind of Graphene anticorrosive paint and preparation method thereof | |
| CN102146251A (en) | Anti-drag and anticorrosion coating for inner wall of natural gas/condensed liquid pipeline and preparation method thereof | |
| CN102372991A (en) | Epoxy resin coating for drinking water equipment, and preparation method thereof | |
| CN102719173A (en) | Epoxy anti-corrosive paint used for underwater concrete | |
| CN109517492A (en) | A kind of oil pipe high temperature high voltage resistant graphene modified phenolic anticorrosive paint | |
| CN102051107B (en) | Light-colored thick paste type epoxy static conductive anticorrosive paint and preparation method thereof | |
| CN103571301A (en) | High bonding-strength insulating paint for insulating protection layer of titanium alloy surface | |
| CN102250525A (en) | Coating used on internal surface of oil pipe for conveying crude oil and petroleum products and preparation method thereof | |
| CN109913081A (en) | A kind of solvent-free and high temperature-resistant anticorrosive paint for crude oil storage tank | |
| CN109486342A (en) | A kind of anticorrosive paint of D structure graphene reinforced epoxy | |
| CN103045049A (en) | Waterborne epoxy anticorrosive coating and preparation method thereof | |
| CN106433397A (en) | Low-temperature-resistant solvent-free and thick-film type epoxy anticorrosive paint | |
| CN104974638A (en) | Sand-textured epoxy powdery paint | |
| CN103396553B (en) | The synthetic method of aliphatic nano organic titanium polyaspartic ester and coating thereof | |
| CN105017929B (en) | A kind of low-resistivity non-solvent epoxy carbon electrostatic conductive paint | |
| CN103351784A (en) | Rolling painting fusion bonded epoxy powder coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131016 |
|
| RJ01 | Rejection of invention patent application after publication |