CN101240134B - Epoxy modifying polyethylene bi-component powdery paints - Google Patents
Epoxy modifying polyethylene bi-component powdery paints Download PDFInfo
- Publication number
- CN101240134B CN101240134B CN2008100080636A CN200810008063A CN101240134B CN 101240134 B CN101240134 B CN 101240134B CN 2008100080636 A CN2008100080636 A CN 2008100080636A CN 200810008063 A CN200810008063 A CN 200810008063A CN 101240134 B CN101240134 B CN 101240134B
- Authority
- CN
- China
- Prior art keywords
- component
- powdery paints
- modifying polyethylene
- polyethylene
- epoxy
- 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.)
- Active
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention relates to a AB two-component powder paint; wherein, component A is composed of polyethylene, solidifier, etc.; component B is composed of polyethylene, epoxy resin, etc.; A and B undergo solidification reaction under proper condition, to form interpenetrating network structure; meanwhile, part of epoxy and solidifier in the powder might undergo solidification reaction with these at bottom layer; therefore, the coat has excellent properties, such as antiseptic, anti-cathode peeling, anti-mechanical damage, etc., good property to be adhered to steel as well. The process is simple; the manufacture is convenient; and the raw material is easy to obtain, with low aggregate cost. The invention is capable of replacing current antiseptic coat, to reduce engineering cost greatly and improve antiseptic technical level for oil field. The invention further discloses preparation method of the powder paint.
Description
Technical field:
The present invention relates to powder coating, concrete is a kind of bi-component powdery paints.
Background technology:
Along with the development that oil, natural gas pipeline projects are built, pipeline corrosion protection novel material, new texture are also constantly being weeded out the old and bring forth the new, and using more at present is the 3PE system.Though the 3PE technology has good antiseptic property, in production and use, still there are a lot of problems:
(1) production control complexity easily produces multiple bonding force inefficacy defective, the bonding risk of delamination that exists of differing materials interlayer; Because adopt the 3PE pipeline to have three interfacial layers, it is metallic conduit layer-epoxy adhesive layer-polyethylene interfacial layer, stripping strength between adhesive linkage and the outer layer polyethylene is three minimum value in the interlaminar strength of interface, and stripping strength only is 35 (N/cm) in the time of 20 ± 5 ℃.
(2) the too high pipe performance that influences of Heating temperature in the production;
(3) pipe fitting can't be consistent with main line pipe preservative coat, and there is hidden danger in the circumferential welded seam repaired mouth;
(4) can not with the galvanic protection co-ordination, protective current is constituted shielding.
Summary of the invention:
Technical problem to be solved by this invention is at the problem that exists in the background, a kind of bi-component powdery paints is provided, after using this coating that oil, natural gas line are carried out rotproofing, the ply adhesion of preservative coat and metallic conduit layer is big, is not easy to produce splitting.
For achieving the above object, technical solution of the present invention is: A, B component are as shown in the table according to listed as parts by weight:
| Material | The A component | The B component |
| Melting index is the HDPE of 0.2-2 | 30～80? | 30～80? |
| Melting index is the HDPE of 10-15 | 10～50? | 10～50? |
[0010]?
| LLDPE? | 5～40? | 5～40? |
| PE properties-correcting agent | 5～30? | 5～30? |
| Initiator | 0.1～5? | 0.1～5? |
| Antioxidant 1010 | 0.1～5? | 0.1～5? |
| Hard ester acid | 0.1～5? | 0.1～5? |
| The nano silicon mineral filler | 0～20? | 0～20? |
| Silane coupling agent | 0～5? | 0～5? |
| Anhydrides, Dyhard RU 100 class, imidazoles or resol class solidifying agent | 3～30? | -? |
| The bisphenol A-type solid epoxy | -? | 5～30? |
A: B=1: 1～1.3 (weight ratio)
Preferred A, B component are as shown in the table according to listed as parts by weight:
Material A component B component
Melting index is HDPE 30～80 30～80 of 0.2-2
Melting index is HDPE 10～50 10～50 of 10-15
LLDPE 5～40 5～40
PE properties-correcting agent 5～10 5～10
Initiator 0.1～1 0.1～1
Antioxidant 1010 0.1～1 0.1～1
Hard ester acid 0.1～1 0.1～1
Nano silicon mineral filler 1～10 1～10
Silane coupling agent 0.1～1 0.1～1
Anhydrides, Dyhard RU 100 class, imidazoles or phenolic aldehyde 3～10 0
The resene solidifying agent
Bisphenol A-type solid epoxy 0 5～10
Described PE properties-correcting agent is meant and can improves polyethylene polar one class material.Because polyethylene is a non-polar material, cohesiveness is very poor, so with the monomer that has polar functional group PE is carried out modification, with unsaturated dicarboxylic acid acid anhydride, Propylene glycol monoacrylate etc. PE is carried out graft modification usually, preferably adopts maleic anhydride.
Described initiator refers to that the easy decomposes of a class becomes the compound of free radical (being elementary free radical), can be used for causing alkene class, the monomeric radical polymerization of diene class and copolymerization.Main dicumyl peroxide (DCP), peroxidized t-butyl perbenzoate (TBPB), the dibenzoyl peroxide peroxide initiators such as (BPO) of adopting preferably adopts dicumyl peroxide (DCP).
Described oxidation inhibitor refers to that some can suppress or delay the organic compound of superpolymer and the thermooxidizing in air of other organic compound.Antioxidant 1010 used in this application is a kind of polynary hindered phenol type antioxidant, and the good discoloration that light and heat causes that prevents is arranged, and has good consistency with polyethylene.
Described mineral filler make in order to spray coating firm attached on the matrix, must reduce poly die swell ratio, and that rigid particles reduces the extrusion swelling phenomenon of polymkeric substance is the most remarkable.The present invention chooses nanometer SiO
2Particle as filler to improve poly extrusion swelling phenomenon.
Described coupling agent can form organic matrix-coupling agent-inorganic matrix key coat between inorganic and organic interface, thereby improves the bonding interface performance of the two.The present invention adopts silane coupling agent to SiO
2Powder is handled, and forms polyethylene matrix-coupling agent-SiO
2The powder key coat is to improve the mechanical property and the adhesiveproperties of system.The present invention preferably adopts γ-glycidyl ether oxygen propyl trimethoxy silicane (KH560).
Described solidifying agent is the auxiliary agent that a class promotes and regulate curing reaction.Preferred anhydrides class solidifying agent of the present invention is as maleic anhydride, Tetra hydro Phthalic anhydride etc.
Described Resins, epoxy adopts the bisphenol A-type solid epoxy.Epoxy group(ing) can form chemical bond with the surface of multiple material, so coating has good sticking power.And the dihydroxyphenyl propane skeleton gives resin excellent heat resistance and obdurability, makes coating that favorable mechanical performance and thermostability be arranged.The bisphenol A-type solid epoxy that is adopted be mainly E-12 (softening temperature: 85-95 ℃, oxirane value: 0.11-0.13), E-03 (softening temperature: 135-145 ℃, oxirane value: 0.025-0.04).
The preparation method, step is as follows: (1) poly modification is handled: according to the prescription requirement, powder polyethylene and properties-correcting agent and initiator are carried out graft reaction at a certain temperature; (2) processing of mineral filler: mineral filler is carried out surface modification treatment with coupling agent; (3) preparation of A, B component powders coating: with above-mentioned modified poly ethylene is matrix, mixes in high-speed mixer with various auxiliary agents, drops in the twin screw extruder to melt extrude; Cryogenic freezing again, the preparation particle diameter is 60～100 purpose powder, the mineral filler that adds through surface modification treatment stirs, and prepare A respectively, the B component.
Graft reaction: according to A, B component proportion relation in the prescription, whole polyethylene are mixed in the high speed kneader with PE properties-correcting agent (5-30 part) and initiator (0.1-5 part), each material is uniformly dispersed.To mix the back material then drops in the twin screw extruder at a certain temperature (screw zones temperature 160～170--170～180--160～180--150～170 ℃) and carries out graft reaction.
The processing of mineral filler: when silane coupler solution is handled nano-silicon dioxide particle, adopt spray method to handle.Coupling agent is mixed with 25% ethanolic soln earlier, then nanoparticle is inserted in the super mixer, under agitation pump into the silane coupler solution that is fine mist, dosage of silane coupling agent is about the 0.1%-1% of silicon dioxide granule quality.Handling 20min can finish, and uses dynamic desiccating method drying subsequently.Also can use silane coupling agent stoste to the silicon dioxide granule processing of spraying.
When using, adopt this powder coating conventional powder coating construction method to get final product.Apply common epoxy anticorrosion class coating during construction earlier, thickness is 80-120 μ m, and the second layer is a modified poly ethylene, and thickness is 1000-1500 μ m.
It is the two component IPN powder coating systems of AB of matrix that the present invention has proposed to adopt with PE first: promptly on the basis of PE being carried out the modification processing, cooperate with epoxy powder, form the two component powder coating of AB, wherein the A component is made up of polyethylene and solidifying agent etc., the B component is made up of polyethylene and Resins, epoxy etc., A and B take place under proper condition to solidify to send out and answer, and form inierpeneirating network structure, and part epoxy in the powder and solidifying agent can also can take place to solidify to send out and answer with bottom epoxy and solidifying agent simultaneously.
Technique effect of the present invention is: novel epoxy of the present invention/modified poly ethylene IPN powder coating combines the advantage of fusion bonded epoxy and 3PE corrosion protection coating structure, have good preservative property, resist performances such as anti-cathodic disbonding performance is strong, anti-physical abuse, and it is good with the steel adhesion property, it is simple to have operation simultaneously, produces easyly, and raw material is cheap and easy to get, advantages such as comprehensive cost is low, alternative existing corrosion protection coating can greatly reduce engineering cost, improves oil field aseptic technic level.
Embodiment:
Embodiment 1.
The powder anti-corrosion coating component of present embodiment is as shown in the table.
Its preparation process key step is as follows: (1) poly modification is handled: various powder polyethylenes are total to 100g mix in the high speed kneader with 5g maleic anhydride and DCP, each material is uniformly dispersed.To mix the back material then drops in the twin screw extruder at a certain temperature (screw zones temperature 160～170--170～180--160～180--150～170 ℃) and carries out graft reaction.(2) processing of mineral filler: with mineral filler SiO
2Carry out surface modification treatment with coupling agent KH560; (3) preparation of A, B component powders coating: with the polyethylene after the above-mentioned modification processing is matrix, mixes in high-speed mixer with all the other various auxiliary agents, drops in the twin screw extruder to melt extrude; Cryogenic freezing again, the preparation particle diameter is 100 purpose powder, the mineral filler that adds through surface modification treatment stirs, and prepare A respectively, the B component, the use of can constructing.
The powder coating product of present embodiment is carried out spraying operation, and the test correlated performance sees the following form 1.When being sprayed at pipe surface, surfacing, color and luster are evenly, no bubble do not have the no shrinkage cavity of cracking.The specification of quality that meets outward appearance.
Embodiment 2.
The pipeline of present embodiment is as shown in the table with the powder anti-corrosion coating component.Its preparation process is with embodiment 1.
The powder coating product of present embodiment is carried out spraying operation, and test the correlated performance of this coating and corresponding pipeline, the results are shown in following table 1.When being sprayed at pipe surface, surfacing, color and luster are evenly, no bubble do not have the no shrinkage cavity of cracking.Meet the visual appearance requirement.Table 1
| Sequence number | Project | Embodiment 1 | Embodiment 2 |
| 1.? | Particle diameter | 100 orders | 90 orders |
| 2.? | Melting index/g/10min | 4? | 5? |
| 3.? | Sticking power N/cm | 2 grades | 1 grade |
| 4.? | Notched Izod impact strength/kJ/m2 | 30? | 28? |
| 5.? | Embrittlement temperature/℃ | -65? | -67? |
| 6.? | Tensile strength/MPa | 21? | 20? |
| 7.? | Elongation at break/% | 621? | 540? |
| 8.? | Alkaline-resisting (10%NaOH), acidproof (10%HCl), salt tolerant (10%NaCl) 168h, 23 ± 2 ℃ of tensile strength elongation at break conservation rates | ≥85％? | ≥85％? |
| 9.? | Hardness (HDd) | 43? | 45? |
| 10.? | Resisting environmental stress and cracking (F50), h | ≥1000? | ≥1000? |
| 11.? | Softening temperature/℃ | 97? | 95? |
| 12.? | Stripping strength/N/cm | ≥60? | ≥60? |
The stripping strength of peeling off degree of emphasizing adhesive linkage and outer layer polyethylene layer in the 3PE pipeline of adhesive linkage and powder coating layer as can be seen from the above table.
Claims (8)
1. epoxy modifying polyethylene bi-component powdery paints, wherein A, B component are as follows according to listed as parts by weight:
Material A component B component
Melting index is HDPE 30～80 30～80 of 0.2-2
Melting index is HDPE 10～50 10～50 of 10-15
LLDPE 5～40 5～40
PE properties-correcting agent 5～30 5～30
Initiator 0.1～5 0.1～5
Antioxidant 1010 0.1～5 0.1～5
Hard ester acid 0.1～5 0.1～5
Nano silicon mineral filler 0～20 0～20
Silane coupling agent 0～5 0～5
Anhydrides, Dyhard RU 100 class, imidazoles or phenolic aldehyde
3～30 0
The resene solidifying agent
Bisphenol A-type solid epoxy 0 5～30
A∶B＝1∶1～1.3。
2. according to the described epoxy modifying polyethylene bi-component powdery paints of claim 1, it is characterized in that: A, B component are as follows according to listed as parts by weight:
Material A component B component
Melting index is HDPE 30～80 30～80 of 0.2-2
Melting index is HDPE 10～50 10～50 of 10-15
LLDPE 5～40 5～40
PE properties-correcting agent 5～10 5～10
Initiator 0.1～1 0.1～1
Antioxidant 1010 0.1～1 0.1～1
Hard ester acid 0.1～1 0.1～1
Nano silicon mineral filler 1～10 1～10
Silane coupling agent 0.1～1 0.1～1
Anhydrides, Dyhard RU 100 class, imidazoles or phenolic aldehyde 3～10 0
The resene solidifying agent
Bisphenol A-type solid epoxy 0 5～10
3. according to claim 1 or 2 described epoxy modifying polyethylene bi-component powdery paints, it is characterized in that: described PE properties-correcting agent is unsaturated dicarboxylic acid acid anhydride or Propylene glycol monoacrylate.
4. according to the described epoxy modifying polyethylene bi-component powdery paints of claim 3, it is characterized in that: described PE properties-correcting agent is maleic anhydride.
5. according to claim 1 or 2 described epoxy modifying polyethylene bi-component powdery paints, it is characterized in that: described initiator is a kind of in dicumyl peroxide (DCP), peroxidized t-butyl perbenzoate (TBPB) or the dibenzoyl peroxide (BPO).
6. according to the described epoxy modifying polyethylene bi-component powdery paints of claim 5, it is characterized in that: described initiator is dicumyl peroxide (DCP).
7. according to claim 1 or 2 described epoxy modifying polyethylene bi-component powdery paints, it is characterized in that: described silane coupling agent is the Y-glycidyl ether oxygen propyl trimethoxy silicane.
8. according to claim 1 or 2 described epoxy modifying polyethylene bi-component powdery paints, it is characterized in that: described solidifying agent is a kind of in maleic anhydride or the Tetra hydro Phthalic anhydride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100080636A CN101240134B (en) | 2008-03-06 | 2008-03-06 | Epoxy modifying polyethylene bi-component powdery paints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100080636A CN101240134B (en) | 2008-03-06 | 2008-03-06 | Epoxy modifying polyethylene bi-component powdery paints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101240134A CN101240134A (en) | 2008-08-13 |
| CN101240134B true CN101240134B (en) | 2010-12-29 |
Family
ID=39931974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100080636A Active CN101240134B (en) | 2008-03-06 | 2008-03-06 | Epoxy modifying polyethylene bi-component powdery paints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101240134B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336998A (en) * | 2011-07-08 | 2012-02-01 | 上海邦中新材料有限公司 | Functional epoxy-modified polyethylene material |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676018B (en) * | 2011-03-08 | 2015-04-15 | 中国石油化工股份有限公司 | Composition for preparing monolayer antiseptic polyethylene powder coating and method for preparing composition |
| CN102277065A (en) * | 2011-07-08 | 2011-12-14 | 上海邦中新材料有限公司 | Epoxy resin powder coating and preparation method thereof |
| CN103045044B (en) * | 2012-12-12 | 2016-03-16 | 滁州市宏源喷涂有限公司 | Powder coating of a kind of energy-conserving and environment-protective and preparation method thereof |
| CN103013279B (en) * | 2012-12-12 | 2016-05-25 | 滁州市宏源喷涂有限公司 | A kind of powdery paints that contains modification trees ashes and preparation method thereof |
| CN103254695B (en) * | 2013-04-09 | 2015-12-23 | 刘庆芳 | A kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof |
| CN105032832A (en) * | 2015-07-07 | 2015-11-11 | 苏州华日金菱机械有限公司 | Ultrasonic cleaning device |
| CN106893525A (en) * | 2015-12-21 | 2017-06-27 | 上海邦中新材料有限公司 | One kind is for steel pipe corrosion-proof adhering resin and preparation method thereof |
| CN106519912A (en) * | 2016-10-18 | 2017-03-22 | 铜陵市肆得科技有限责任公司 | Hybrid ultra-high-molecular-weight polyethylene toughening-modified composite epoxy anti-rust powder coating for automotive chassis and preparation method thereof |
| CN113913054A (en) * | 2020-07-10 | 2022-01-11 | 国家能源投资集团有限责任公司 | Crosslinkable polyethylene composition, crosslinkable polyethylene blend and composite article |
| CN114316754B (en) * | 2021-12-24 | 2023-04-04 | 老虎表面技术新材料（清远）有限公司 | Antiskid powder coating composition and coating thereof |
| CN114085596B (en) * | 2021-12-31 | 2022-11-22 | 山东东宏管业股份有限公司 | Fusion bonding epoxy powder coating and application thereof in low-surface treatment of rusty steel pipe |
-
2008
- 2008-03-06 CN CN2008100080636A patent/CN101240134B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336998A (en) * | 2011-07-08 | 2012-02-01 | 上海邦中新材料有限公司 | Functional epoxy-modified polyethylene material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101240134A (en) | 2008-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101240134B (en) | Epoxy modifying polyethylene bi-component powdery paints | |
| CN102061030B (en) | High-abrasion-resistant corrosion-resistant inorganic particle crosslinking polyethylene composite material and preparation method thereof | |
| CN101353544A (en) | Tough sintering epoxy powder coating and preparation thereof | |
| CN102464934B (en) | Epoxy powder coating suitable for low-temperature coating | |
| CN104277664B (en) | A kind of Marine Antifouling Paint | |
| CN101747552B (en) | Steel-pipeline outer-layer anticorrosive polyethylene compound and preparation method thereof | |
| Fiore et al. | Epoxy resins as a matrix material in advanced fiber-reinforced polymer (FRP) composites | |
| CN104388013B (en) | A kind of high resistance to soaked performance adhering resin and preparation method and application | |
| CN104530919A (en) | Epoxy powder primer used for anticorrosion paint for outer walls of deep sea oil transportation steel pipes and preparing method thereof | |
| CN105754445B (en) | Composite heavy corrosion protection epoxy powder of solid and plastic and its application | |
| CN101768393A (en) | Nano inorganic particle modified polar polyethylene and preparation method thereof | |
| CN104534191B (en) | A kind of polrvinyl chloride composite metal plastic pipe and preparation method thereof | |
| CN103642356A (en) | Crosslinked polypropylene viscoelastic composite coating and preparation method thereof | |
| CN101768395A (en) | Nano inorganic particle modified polar polypropylene and preparation method thereof | |
| CN101768392A (en) | Polar modified polymer material | |
| CN1112400C (en) | Polymer/metal repairing material and its preparation method | |
| CN101759893A (en) | Polar modified polyethylene and preparation method thereof | |
| CN102676018A (en) | Composition for preparing monolayer antiseptic polyethylene powder coating and method for preparing composition | |
| CN109337523A (en) | A kind of food grade powder coating and the preparation method and application thereof | |
| CN105419571B (en) | A kind of anticorrosion coat material | |
| CN112831135B (en) | High-impact PVC (polyvinyl chloride) pipe material and preparation method and application thereof | |
| CN1205288C (en) | Modified double layer epoxide powder paint and preparing method thereof | |
| CN107880814B (en) | A kind of adhering resin and the preparation method and application thereof that resistance to compression slot is had excellent performance | |
| CN1944514B (en) | Function reinforced mother particles | |
| CN107151383A (en) | A kind of high-strength abrasion-proof fiberglass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee after: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee before: DA QING PETROLEUM ADMINISTRATION BUREAU |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211231 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee after: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee before: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. |