CN102464910B - A kind of solidifying agent of rebar anti-corrosion powder coating - Google Patents
A kind of solidifying agent of rebar anti-corrosion powder coating Download PDFInfo
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- CN102464910B CN102464910B CN201010545639.XA CN201010545639A CN102464910B CN 102464910 B CN102464910 B CN 102464910B CN 201010545639 A CN201010545639 A CN 201010545639A CN 102464910 B CN102464910 B CN 102464910B
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- solidifying agent
- powder coating
- polyetheramine
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Abstract
The present invention relates to a kind of solidifying agent of rebar anti-corrosion powder coating, described solidifying agent comprises phenols curing agent and polyetheramine.By adding polyetheramine in phenols curing agent, not only increase the reactive behavior of solidifying agent of the present invention, and also improve snappiness and the sticking power of the coating that the powder coating that adds solidifying agent of the present invention obtains.
Description
Technical field
The present invention relates to a kind of solidifying agent, be specifically related to a kind of solidifying agent of rebar anti-corrosion powder coating.
Background technology
Along with the construction of China Railway High-speed and harbour, more and more higher requirement is proposed to the life-span of building, and building life depends on the anticorrosion situation of building bar.Under reinforcing bar does not have rot-resistant situation, seawater or underground water can cause infringement to reinforcing bar, and the corrosion of reinforcing bar and expansion can cause buildings internal stress to strengthen, and finally cause building damage or work-ing life greatly to shorten.Therefore the rotproofing of reinforcing bar is seemed most important.And carrying out spray coating powder paint to reinforcing bar, to carry out anticorrosion be to the good treatment process of reinforcing bar.Facts have proved for many years, epoxide resin type anti-corrosive powder paint is applied extremely successful on the pipeline of On The Oil And Gas Transportation, and preservative effect is very good.In addition, the yield polymer films of epoxide resin type anti-corrosive powder paint is high, close to 100%, and VOC free (organic volatile) discharge when constructing, very environmental protection.But it is poor that the coating using epoxide resin type anti-corrosive powder paint to be formed bends snappiness, the reactive behavior of its solidifying agent used is also not enough.
Summary of the invention
In order to the solidifying agent overcoming existing rebar anti-corrosion powder coating adds the defect of the very low and reactive behavior deficiency of the snappiness of coating obtained after powder coating to, the invention provides a kind of solidifying agent of rebar anti-corrosion powder coating, this solidifying agent not only has very high reactive behavior, and improves the snappiness and sticking power of adding the coating that the powder coating of this solidifying agent obtains.
To achieve these goals, the invention provides a kind of solidifying agent of rebar anti-corrosion powder coating, it comprises phenols curing agent and polyetheramine.In described solidifying agent, the amount of the polyetheramine added is the 0.5-10wt% of phenols curing agent, is preferably 1-5wt%.
Described phenols curing agent can be commercially any or homemade phenols curing agent, such as, can be phenols curing agent DEH84, EB-30, KD-404, PSG-01 or its mixture.
The epoxy resin that described phenols curing agent is closed by dihydroxyphenyl propane is usually obtained by chain extension technique.
Described polyetheramine can be the polyetheramine of any type, such as monoamine, diamine, tertiary amine or its mixture etc.The example of monoamine comprises M-1000, M-2070, M-2005; The example of diamine comprises ED-2003, ED-900, ED-600, D-400, D-2000, D-230; The example of tertiary amine comprises T-5000, T-3000, T-403.
The polyetheramine of small-molecular-weight is added in common phenols curing agent, due to small-molecular-weight polyetheramine can with the resin generation graft reaction of phenols, and containing ehter bond in polyetheramine, ehter bond has stronger flexility, thus strengthen the flexility of powder coating coating.Meanwhile, polyetheramine itself is a kind of solidifying agent of high reaction activity, so not only increase the snappiness of solidifying agent provided by the invention, also add the reactive behavior of solidifying agent provided by the invention simultaneously.
The invention has the beneficial effects as follows, by adding polyetheramine in phenols curing agent, not only can increase the reactive behavior of solidifying agent of the present invention, and improve snappiness and the sticking power of the coating that the powder coating that adds solidifying agent of the present invention obtains.
Embodiment
Embodiment 1
Prepare routine phenol solidifying agent
Adopt oily heater body polymerization, the epoxy resin E-44 (purchased from Yueyang petrochemical industry) of 100g, the dihydroxyphenyl propane (purchased from Qilu Petrochemical) of 26g are added reactor with the phenols curing agent CT-3 (purchased from Qilu Petrochemical) of 6g, stir 1-2h at 180 DEG C after, whole system is cooled to 140 DEG C, add the phenols curing agent CT-3 of 26g dihydroxyphenyl propane and 6g again, 1-2h is stirred, obtained routine phenol solidifying agent under the temperature of reaction of 140 DEG C.
Embodiment 2
Prepare solidifying agent of the present invention
The unitary polyetheramine M-1000 (purchased from large bright trade Co., Ltd repeatedly) of the routine phenol solidifying agent of preparation in embodiment 1 and 13.1g is added reactor, 0.5-1h is stirred under the temperature of reaction of 140 DEG C, generation material is released reactor while hot, cooling crush, obtained solidifying agent of the present invention.
Embodiment 3
Prepare solidifying agent of the present invention
Adopt oily heater body polymerization, by the epoxy resin E-44 (purchased from Yueyang petrochemical industry) of 100g, the dihydroxyphenyl propane (purchased from Qilu Petrochemical) of 30g and the phenols curing agent CT-3 (purchased from Qilu Petrochemical) of 8g add reactor, stir 1-2h at 170 DEG C after, whole system is cooled to 140 DEG C, add the phenols curing agent CT-3 of 30g dihydroxyphenyl propane and 6g again, 1-2h is stirred under the temperature of reaction of 140 DEG C, finally the binary polyetheramine ED-2003 (purchased from large bright trade Co., Ltd repeatedly) of 8.7g is added reactor, 0.5-1h is stirred under the temperature of reaction of 140 DEG C, generation material is released reactor while hot, cooling crush, obtained solidifying agent of the present invention.
Embodiment 4
Prepare solidifying agent of the present invention
Adopt oily heater body polymerization, by the epoxy resin E-44 (purchased from Yueyang petrochemical industry) of 100g, the dihydroxyphenyl propane (purchased from Qilu Petrochemical) of 20g and the phenols curing agent CT-3 (purchased from Qilu Petrochemical) of 5g add reactor, stir 1-2h at 180 DEG C after, whole system is cooled to 140 DEG C, add the phenols curing agent CT-3 of 25g dihydroxyphenyl propane and 5g again, 1-2h is stirred under the temperature of reaction of 140 DEG C, finally the ternary polyetheramine T-5000 (purchased from large bright trade Co., Ltd repeatedly) of 3.1g is added reactor, 0.5-1h is stirred under the temperature of reaction of 140 DEG C, generation material is released reactor while hot, cooling crush, obtained solidifying agent of the present invention.
Measure the following data of the solidifying agent prepared in embodiment 1-4 respectively.
Shock strength detection method: the sample (175mm × 75mm × 0.4mm) preparing coat-thickness 80-120 μm, then measures shock strength under paint film impactor.
Bending resistance detection method: the sample (200mm × 25mm × 6mm) first preparing coat-thickness 300-400 μm, then in the environment of refrigerated tank-20 DEG C ± 3 DEG C, at least 1 hour is kept, finally sample is placed on the enterprising line bend experiment of press brake of 2.5 °, the total process measuring the bending resistance of each sample should be taken out in 30s and be completed in refrigerated tank, wherein, the bending of sample should complete in 10s.
Set time: measure according to SY/T0315-2005 appendix A.
The Data Comparison of the solidifying agent that table 1 is prepared by embodiment 1-4
Visible, the reactive behavior of the solidifying agent prepared after adding polyetheramine improves, and set time shortens, and its film flexibility prepared after adding coating to improves.
Claims (3)
1. a solidifying agent for rebar anti-corrosion powder coating, it comprises routine phenol solidifying agent and polyetheramine, wherein
Described routine phenol solidifying agent is prepared by the following method: adopt oily heater body polymerization, the phenols curing agent CT-3 of the epoxy resin E-44 of 100g, the dihydroxyphenyl propane of 26g and 6g is added reactor, stir 1-2h at 180 DEG C after, whole system is cooled to 140 DEG C, add the phenols curing agent CT-3 of 26g dihydroxyphenyl propane and 6g again, 1-2h is stirred under the temperature of reaction of 140 DEG C, thus obtained routine phenol solidifying agent;
The unitary polyetheramine M-1000 of described routine phenol solidifying agent and 13.1g is added reactor, under the temperature of reaction of 140 DEG C, stirs 0.5-1h, generation material is released reactor while hot, cooling crush, the solidifying agent of obtained described rebar anti-corrosion powder coating.
2. a solidifying agent for rebar anti-corrosion powder coating, it comprises routine phenol solidifying agent and polyetheramine, wherein
Described routine phenol solidifying agent is prepared by the following method: adopt oily heater body polymerization, the phenols curing agent CT-3 of the epoxy resin E-44 of 100g, the dihydroxyphenyl propane of 30g and 8g is added reactor, stir 1-2h at 170 DEG C after, whole system is cooled to 140 DEG C, add the phenols curing agent CT-3 of 30g dihydroxyphenyl propane and 6g again, 1-2h is stirred under the temperature of reaction of 140 DEG C, thus obtained routine phenol solidifying agent;
Finally the binary polyetheramine ED-2003 of 8.7g is added reactor, under the temperature of reaction of 140 DEG C, stir 0.5-1h, generation material is released reactor while hot, cooling crush, the solidifying agent of obtained described rebar anti-corrosion powder coating.
3. a solidifying agent for rebar anti-corrosion powder coating, it comprises routine phenol solidifying agent and polyetheramine, wherein
Described routine phenol solidifying agent is prepared by the following method: adopt oily heater body polymerization, the phenols curing agent CT-3 of the epoxy resin E-44 of 100g, the dihydroxyphenyl propane of 20g and 5g is added reactor, stir 1-2h at 180 DEG C after, whole system is cooled to 140 DEG C, add the phenols curing agent CT-3 of 25g dihydroxyphenyl propane and 5g again, 1-2h is stirred under the temperature of reaction of 140 DEG C, thus obtained routine phenol solidifying agent;
Finally the ternary polyetheramine T-5000 of 3.1g is added reactor, under the temperature of reaction of 140 DEG C, stir 0.5-1h, generation material is released reactor while hot, cooling crush, the solidifying agent of obtained described rebar anti-corrosion powder coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010545639.XA CN102464910B (en) | 2010-11-16 | 2010-11-16 | A kind of solidifying agent of rebar anti-corrosion powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010545639.XA CN102464910B (en) | 2010-11-16 | 2010-11-16 | A kind of solidifying agent of rebar anti-corrosion powder coating |
Publications (2)
| Publication Number | Publication Date |
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| CN102464910A CN102464910A (en) | 2012-05-23 |
| CN102464910B true CN102464910B (en) | 2015-11-25 |
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| CN201010545639.XA Expired - Fee Related CN102464910B (en) | 2010-11-16 | 2010-11-16 | A kind of solidifying agent of rebar anti-corrosion powder coating |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146700A (en) * | 1978-03-27 | 1979-03-27 | Texaco Development Corp. | Diamides of polyoxyalkylenepolyamine-urea condensates as epoxy resin additives |
| CN101144000A (en) * | 2006-09-11 | 2008-03-19 | 第一毛织株式会社 | Adhesive film composition for semiconductor assembly, associated dicing die bonding film and semiconductor package |
| CN101671516A (en) * | 2008-09-11 | 2010-03-17 | 中国石油天然气集团公司 | Three-layer polyethylene coating low-temperature curing and sintering epoxy powder |
| CN101880505A (en) * | 2010-07-06 | 2010-11-10 | 庞贝捷(涂料)昆山有限公司 | Thick film type antirust coating and preparation method thereof |
-
2010
- 2010-11-16 CN CN201010545639.XA patent/CN102464910B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146700A (en) * | 1978-03-27 | 1979-03-27 | Texaco Development Corp. | Diamides of polyoxyalkylenepolyamine-urea condensates as epoxy resin additives |
| CN101144000A (en) * | 2006-09-11 | 2008-03-19 | 第一毛织株式会社 | Adhesive film composition for semiconductor assembly, associated dicing die bonding film and semiconductor package |
| CN101671516A (en) * | 2008-09-11 | 2010-03-17 | 中国石油天然气集团公司 | Three-layer polyethylene coating low-temperature curing and sintering epoxy powder |
| CN101880505A (en) * | 2010-07-06 | 2010-11-10 | 庞贝捷(涂料)昆山有限公司 | Thick film type antirust coating and preparation method thereof |
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| CN102464910A (en) | 2012-05-23 |
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Granted publication date: 20151125 Termination date: 20171116 |