CN109705707A - A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating - Google Patents
A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating Download PDFInfo
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- CN109705707A CN109705707A CN201811338137.2A CN201811338137A CN109705707A CN 109705707 A CN109705707 A CN 109705707A CN 201811338137 A CN201811338137 A CN 201811338137A CN 109705707 A CN109705707 A CN 109705707A
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- modification infusorial
- infusorial earth
- surface corrosion
- chemical pump
- resistant
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Abstract
The invention discloses a kind of modification infusorial earth enhancing chemical pump surface corrosion-resistants to lose coating, it is related to chemical industry pump technical field, is made of following component: aqueous polyurethane, modification infusorial earth, dopamine modified carboxy methyl cellulose, triethylene tetramine, zinc oxide, ammonium polyphosphate, defoaming agent, isopropanol, deionized water；The present invention is basic resin with aqueous polyurethane, and by modified synergic diatomite, the coating for acting on available more high solids content, closer organic component of dopamine modified carboxy methyl cellulose, the anti-corrosion that can be suitable for a variety of chemical pumps is protected.
Description
Technical field
The invention belongs to chemical industry pump technical fields, and in particular to a kind of modification infusorial earth enhancing chemical pump is lost with surface corrosion-resistant
Coating.
Background technique
Chemical pump is the energy-saving pump of Joint National design, the performance of pump, technical requirements, according to the property of international standard defined
Can be with size design, advantage: complete series conservancy property is rationally distributed, and user's range of choice is wide, " rear open type " structure, maintenance
Convenient, efficiency and suction are reached advanced world standards, and are widely used in industry, city water, draining, also be can be used for farmland, orchard
Irrigation and drainage are used for conveying clear water or physics and chemical property similar to other liquid of clear water.
Since chemical pump is easily touched with corrosive liquid, it is therefore desirable to centainly be handled the surface of chemical pump
The surface corrosion resistance energy of chemical pump is improved, to reduce chemical pump to the high request of material capability, is passed through in the prior art
It is solved by the way of coating coating, however existing corrosion resistance of coating can be general, the service life is shorter.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant is provided
Lose coating.
The present invention is achieved by the following technical solutions:
A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating, is made of following component: aqueous poly- by weight
Urethane 75-82, modification infusorial earth 20-22, dopamine modified carboxy methyl cellulose 6-9, triethylene tetramine 1.2-1.5, zinc oxide
2-4, ammonium polyphosphate 1-4, defoaming agent 2.3-2.5, isopropanol 4.5-5.8, deionized water 61-63.
Further, the modification infusorial earth the preparation method comprises the following steps:
(1) diatomite is added in the n-dodecyl mercaptan solution that mass fraction is 1.5% in the ratio of 120g:350mL, so
Afterwards again in a nitrogen atmosphere, 88 DEG C are heated to, with 1500r/min revolving speed stirring 2 hours, after cooled to room temperature, obtains silicon
Diatomaceous earth dispersion liquid；
(2) sodium citrate solution that nano-graphene and mass fraction are 15% is mixed in the ratio of 18g:300mL, is then stirred
After mixing uniformly, then the titanate coupling agent of nano-graphene quality 1.8% is added, is heated to 76 DEG C, is stirred with 1200r/min revolving speed
It mixes 2 hours, obtains nano-graphene dispersion liquid；
(3) after mixing diatomite dispersion liquid by 1.2:1 mass ratio with nano-graphene dispersion liquid, it is added in reaction kettle,
It is filled with air in nitrogen discharge reaction kettle, then adds the N hydroxymethyl acrylamide of diatomite dispersion liquid quality 0.26%, at 92 DEG C
Under with 1150r/min revolving speed stirring 1.5 hours, then discharge, filter, cleaned using deionized water to neutrality, be dried to
Constant weight to get.
Further, the diatom soil granularity is 1200 mesh, and the nano-graphene granularity is 90nm.
Further, the dopamine modified carboxy methyl cellulose the preparation method comprises the following steps:
(1) carboxymethyl cellulose is added in the sodium carbonate liquor of 5 times of its quality and is dissolved, 60 DEG C are heated to, with 200r/
Min revolving speed stirs 30min, then adds the 1- ethyl -3-(3- dimethylaminopropyl with sodium alginate equimolar amounts) carbon two is sub-
Amine hydrochlorate adjusts the temperature to 65 DEG C, continues to stir 40min, then adds and be equivalent to 0.3-0.4 times of carboxymethyl cellulose
The dopamine of mole reacts 6 hours, reaction product is purified, dopamine modified carboxy methyl cellulose initial material is obtained；
(2) the dopamine modified carboxy methyl cellulose initial material that step (1) synthesizes is added to the liquor natrii hypochloritis of 3 times of its quality
In, at room temperature, stir 1 hour, then carry out rotary evaporation it is dry to constant weight to get.
Further, the sodium carbonate liquor pH is 8.6.
Further, liquor natrii hypochloritis's mass fraction is 0.12%.
Further, the defoaming agent is organic silicon defoamer.
The utility model has the advantages that the present invention is basic resin with aqueous polyurethane, pass through modified synergic diatomite, the modified carboxylic of dopamine
The coating for acting on available more high solids content, closer organic component of methylcellulose, can be suitable for a variety of chemical industry
The anti-corrosion of pump is protected.Coating of the present invention can significantly improve the grain of conventional diatomite by using the use of modification infusorial earth
The architectural characteristic of son promotes so that modification infusorial earth can play uniform, good and fine and close structural network in solidify coating
Bonding action in coating between molecule has apparent enhancing, can be obtained after solidification stronger molecular backbone have it is water-fast well
Property and chemical resistance；The present invention uses the effect of dopamine modified carboxy methyl cellulose, can significantly improve carboxymethyl fibre
The architectural characteristic of element is tieed up, so that not only only the carboxymethyl cellulose of routine is applying Material to dopamine modified carboxy methyl cellulose
The thickening power played in system, but coating molecule cross-link can be promoted to form three-dimensional net structure in coating system, in addition
Dopamine modified carboxy methyl cellulose, which introduces a large amount of active group, can further improve adhesive force of the coating on metallic matrix.
Through detecting, coating adhesion can achieve 0 grade, and impact resistant strength is in 65Kg.cm or more.
Specific embodiment
Embodiment 1
A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating, is made of following component: aqueous poly- by weight
Urethane 82, modification infusorial earth 20, dopamine modified carboxy methyl cellulose 6, triethylene tetramine 1.2, zinc oxide 2, ammonium polyphosphate 1,
Defoaming agent 2.3, isopropanol 4.5, deionized water 61.
Further, the modification infusorial earth the preparation method comprises the following steps:
(1) diatomite is added in the n-dodecyl mercaptan solution that mass fraction is 1.5% in the ratio of 120g:350mL, so
Afterwards again in a nitrogen atmosphere, 88 DEG C are heated to, with 1500r/min revolving speed stirring 2 hours, after cooled to room temperature, obtains silicon
Diatomaceous earth dispersion liquid；
(2) sodium citrate solution that nano-graphene and mass fraction are 15% is mixed in the ratio of 18g:300mL, is then stirred
After mixing uniformly, then the titanate coupling agent of nano-graphene quality 1.8% is added, is heated to 76 DEG C, is stirred with 1200r/min revolving speed
It mixes 2 hours, obtains nano-graphene dispersion liquid；
(3) after mixing diatomite dispersion liquid by 1.2:1 mass ratio with nano-graphene dispersion liquid, it is added in reaction kettle,
It is filled with air in nitrogen discharge reaction kettle, then adds the N hydroxymethyl acrylamide of diatomite dispersion liquid quality 0.26%, at 92 DEG C
Under with 1150r/min revolving speed stirring 1.5 hours, then discharge, filter, cleaned using deionized water to neutrality, be dried to
Constant weight to get.
Further, the diatom soil granularity is 1200 mesh, and the nano-graphene granularity is 90nm.
Further, the dopamine modified carboxy methyl cellulose the preparation method comprises the following steps:
(1) carboxymethyl cellulose is added in the sodium carbonate liquor of 5 times of its quality and is dissolved, 60 DEG C are heated to, with 200r/
Min revolving speed stirs 30min, then adds the 1- ethyl -3-(3- dimethylaminopropyl with sodium alginate equimolar amounts) carbon two is sub-
Amine hydrochlorate adjusts the temperature to 65 DEG C, continues to stir 40min, then adds and be equivalent to 0.3 times mole of carboxymethyl cellulose
The dopamine of amount reacts 6 hours, reaction product is purified, dopamine modified carboxy methyl cellulose initial material is obtained；
(2) the dopamine modified carboxy methyl cellulose initial material that step (1) synthesizes is added to the liquor natrii hypochloritis of 3 times of its quality
In, at room temperature, stir 1 hour, then carry out rotary evaporation it is dry to constant weight to get.
Further, the sodium carbonate liquor pH is 8.6.
Further, liquor natrii hypochloritis's mass fraction is 0.12%.
Further, the defoaming agent is organic silicon defoamer.
Embodiment 2
A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating, is made of following component: aqueous poly- by weight
Urethane 75, modification infusorial earth 22, dopamine modified carboxy methyl cellulose 9, triethylene tetramine 1.5, zinc oxide 4, ammonium polyphosphate 4,
Defoaming agent 2.5, isopropanol 5.8, deionized water 63.
Further, the modification infusorial earth the preparation method comprises the following steps:
(1) diatomite is added in the n-dodecyl mercaptan solution that mass fraction is 1.5% in the ratio of 120g:350mL, so
Afterwards again in a nitrogen atmosphere, 88 DEG C are heated to, with 1500r/min revolving speed stirring 2 hours, after cooled to room temperature, obtains silicon
Diatomaceous earth dispersion liquid；
(2) sodium citrate solution that nano-graphene and mass fraction are 15% is mixed in the ratio of 18g:300mL, is then stirred
After mixing uniformly, then the titanate coupling agent of nano-graphene quality 1.8% is added, is heated to 76 DEG C, is stirred with 1200r/min revolving speed
It mixes 2 hours, obtains nano-graphene dispersion liquid；
(3) after mixing diatomite dispersion liquid by 1.2:1 mass ratio with nano-graphene dispersion liquid, it is added in reaction kettle,
It is filled with air in nitrogen discharge reaction kettle, then adds the N hydroxymethyl acrylamide of diatomite dispersion liquid quality 0.26%, at 92 DEG C
Under with 1150r/min revolving speed stirring 1.5 hours, then discharge, filter, cleaned using deionized water to neutrality, be dried to
Constant weight to get.
Further, the diatom soil granularity is 1200 mesh, and the nano-graphene granularity is 90nm.
Further, the dopamine modified carboxy methyl cellulose the preparation method comprises the following steps:
(1) carboxymethyl cellulose is added in the sodium carbonate liquor of 5 times of its quality and is dissolved, 60 DEG C are heated to, with 200r/
Min revolving speed stirs 30min, then adds the 1- ethyl -3-(3- dimethylaminopropyl with sodium alginate equimolar amounts) carbon two is sub-
Amine hydrochlorate adjusts the temperature to 65 DEG C, continues to stir 40min, then adds and be equivalent to 0.4 times mole of carboxymethyl cellulose
The dopamine of amount reacts 6 hours, reaction product is purified, dopamine modified carboxy methyl cellulose initial material is obtained；
(2) the dopamine modified carboxy methyl cellulose initial material that step (1) synthesizes is added to the liquor natrii hypochloritis of 3 times of its quality
In, at room temperature, stir 1 hour, then carry out rotary evaporation it is dry to constant weight to get.
Further, the sodium carbonate liquor pH is 8.6.
Further, liquor natrii hypochloritis's mass fraction is 0.12%.
Further, the defoaming agent is organic silicon defoamer.
Embodiment 3
A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating, is made of following component: aqueous poly- by weight
Urethane 78, modification infusorial earth 21, dopamine modified carboxy methyl cellulose 7, triethylene tetramine 1.3, zinc oxide 3, ammonium polyphosphate 2,
Defoaming agent 2.4, isopropanol 4.6, deionized water 62.
Further, the modification infusorial earth the preparation method comprises the following steps:
(1) diatomite is added in the n-dodecyl mercaptan solution that mass fraction is 1.5% in the ratio of 120g:350mL, so
Afterwards again in a nitrogen atmosphere, 88 DEG C are heated to, with 1500r/min revolving speed stirring 2 hours, after cooled to room temperature, obtains silicon
Diatomaceous earth dispersion liquid；
(2) sodium citrate solution that nano-graphene and mass fraction are 15% is mixed in the ratio of 18g:300mL, is then stirred
After mixing uniformly, then the titanate coupling agent of nano-graphene quality 1.8% is added, is heated to 76 DEG C, is stirred with 1200r/min revolving speed
It mixes 2 hours, obtains nano-graphene dispersion liquid；
(3) after mixing diatomite dispersion liquid by 1.2:1 mass ratio with nano-graphene dispersion liquid, it is added in reaction kettle,
It is filled with air in nitrogen discharge reaction kettle, then adds the N hydroxymethyl acrylamide of diatomite dispersion liquid quality 0.26%, at 92 DEG C
Under with 1150r/min revolving speed stirring 1.5 hours, then discharge, filter, cleaned using deionized water to neutrality, be dried to
Constant weight to get.
Further, the diatom soil granularity is 1200 mesh, and the nano-graphene granularity is 90nm.
Further, the dopamine modified carboxy methyl cellulose the preparation method comprises the following steps:
(1) carboxymethyl cellulose is added in the sodium carbonate liquor of 5 times of its quality and is dissolved, 60 DEG C are heated to, with 200r/
Min revolving speed stirs 30min, then adds the 1- ethyl -3-(3- dimethylaminopropyl with sodium alginate equimolar amounts) carbon two is sub-
Amine hydrochlorate adjusts the temperature to 65 DEG C, continues to stir 40min, then adds and be equivalent to 0.36 times mole of carboxymethyl cellulose
The dopamine of amount reacts 6 hours, reaction product is purified, dopamine modified carboxy methyl cellulose initial material is obtained；
(2) the dopamine modified carboxy methyl cellulose initial material that step (1) synthesizes is added to the liquor natrii hypochloritis of 3 times of its quality
In, at room temperature, stir 1 hour, then carry out rotary evaporation it is dry to constant weight to get.
Further, the sodium carbonate liquor pH is 8.6.
Further, liquor natrii hypochloritis's mass fraction is 0.12%.
Further, the defoaming agent is organic silicon defoamer.
Comparative example 1: it is distinguished with embodiment 1 and is only that the diatomite that modification infusorial earth is replaced with to unmodified processing.
Comparative example 2: it is only that with the difference of embodiment 1 and does not add dopamine modified carboxy methyl cellulose.
Comparative example 3: it is only that with the difference of embodiment 1 and dopamine modified carboxy methyl cellulose is replaced with into unmodified carboxylic first
Base cellulose.
Comparative example 4: it is only that with the difference of embodiment 1 and modification infusorial earth is replaced with into application number: in 201310370936.9
The modification infusorial earth of preparation.
Control group: the coating prepared using application number 201610077740.4.
Coating made from embodiment and comparative example is brushed respectively on Q235 steel plate, 30min is dried at room temperature for, is formed
One layer of fine and close protective film, the performance test results see the table below:
Adhesive force: GB 9286-1998；
Neutral salt spray test: GB 10125-1997；
Acid corrosion-resistant: 5% sulfuric acid solution room temperature is completely soaked；
Alkali corrosion resistance: 5% sodium hydroxide solution room temperature is completely soaked；
Table 1
Corrosion resistant coating prepared by the present invention not only has good corrosion resistance as can be seen from Table 1, while also having good
Good adhesive force.
Claims (7)
1. a kind of modification infusorial earth enhancing chemical pump loses coating with surface corrosion-resistant, which is characterized in that by weight by below at
Divide and be made: aqueous polyurethane 75-82, modification infusorial earth 20-22, dopamine modified carboxy methyl cellulose 6-9, triethylene tetramine
1.2-1.5, zinc oxide 2-4, ammonium polyphosphate 1-4, defoaming agent 2.3-2.5, isopropanol 4.5-5.8, deionized water 61-63.
2. a kind of modification infusorial earth enhancing chemical pump as described in claim 1 loses coating with surface corrosion-resistant, which is characterized in that institute
State modification infusorial earth the preparation method comprises the following steps:
(1) diatomite is added in the n-dodecyl mercaptan solution that mass fraction is 1.5% in the ratio of 120g:350mL, so
Afterwards again in a nitrogen atmosphere, 88 DEG C are heated to, with 1500r/min revolving speed stirring 2 hours, after cooled to room temperature, obtains silicon
Diatomaceous earth dispersion liquid；
(2) sodium citrate solution that nano-graphene and mass fraction are 15% is mixed in the ratio of 18g:300mL, is then stirred
After mixing uniformly, then the titanate coupling agent of nano-graphene quality 1.8% is added, is heated to 76 DEG C, is stirred with 1200r/min revolving speed
It mixes 2 hours, obtains nano-graphene dispersion liquid；
(3) after mixing diatomite dispersion liquid by 1.2:1 mass ratio with nano-graphene dispersion liquid, it is added in reaction kettle,
It is filled with air in nitrogen discharge reaction kettle, then adds the N hydroxymethyl acrylamide of diatomite dispersion liquid quality 0.26%, at 92 DEG C
Under with 1150r/min revolving speed stirring 1.5 hours, then discharge, filter, cleaned using deionized water to neutrality, be dried to
Constant weight to get.
3. a kind of modification infusorial earth enhancing chemical pump as claimed in claim 2 loses coating with surface corrosion-resistant, which is characterized in that institute
Stating diatom soil granularity is 1200 mesh, and the nano-graphene granularity is 90nm.
4. a kind of modification infusorial earth enhancing chemical pump as described in claim 1 loses coating with surface corrosion-resistant, which is characterized in that institute
State dopamine modified carboxy methyl cellulose the preparation method comprises the following steps:
(1) carboxymethyl cellulose is added in the sodium carbonate liquor of 5 times of its quality and is dissolved, 60 DEG C are heated to, with 200r/
Min revolving speed stirs 30min, then adds the 1- ethyl -3-(3- dimethylaminopropyl with sodium alginate equimolar amounts) carbon two is sub-
Amine hydrochlorate adjusts the temperature to 65 DEG C, continues to stir 40min, then adds and be equivalent to 0.3-0.4 times of carboxymethyl cellulose
The dopamine of mole reacts 6 hours, reaction product is purified, dopamine modified carboxy methyl cellulose initial material is obtained；
(2) the dopamine modified carboxy methyl cellulose initial material that step (1) synthesizes is added to the liquor natrii hypochloritis of 3 times of its quality
In, at room temperature, stir 1 hour, then carry out rotary evaporation it is dry to constant weight to get.
5. a kind of modification infusorial earth enhancing chemical pump as claimed in claim 4 loses coating with surface corrosion-resistant, which is characterized in that institute
Stating sodium carbonate liquor pH is 8.6.
6. a kind of modification infusorial earth enhancing chemical pump as claimed in claim 4 loses coating with surface corrosion-resistant, which is characterized in that institute
Stating liquor natrii hypochloritis's mass fraction is 0.12%.
7. a kind of modification infusorial earth enhancing chemical pump as described in claim 1 loses coating with surface corrosion-resistant, which is characterized in that institute
Stating defoaming agent is organic silicon defoamer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811338137.2A CN109705707A (en) | 2018-11-12 | 2018-11-12 | A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811338137.2A CN109705707A (en) | 2018-11-12 | 2018-11-12 | A kind of modification infusorial earth enhancing chemical pump surface corrosion-resistant erosion coating |
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| CN109705707A true CN109705707A (en) | 2019-05-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105770981A (en) * | 2016-03-09 | 2016-07-20 | 四川大学 | Biological medical oxidative sodium carboxymethylcellulose-dopamine adhesive and preparation method thereof |
| CN106336829A (en) * | 2016-09-07 | 2017-01-18 | 江南大学 | Preparation method for DA (Dopamine)-based adhesive |
| US20170051157A1 (en) * | 2015-08-21 | 2017-02-23 | Chevron U.S.A. Inc. | Functional self-healing coatings and compositions and methods for forming such coatings |
| CN108485389A (en) * | 2018-03-19 | 2018-09-04 | 浙江巨化技术中心有限公司 | A kind of fluoropolymer powder coatings and its preparation method and application |
| CN108753137A (en) * | 2018-05-30 | 2018-11-06 | 安徽宇瑞环保建设有限公司 | A kind of environmental protection equipment surface aging resistant coating |
-
2018
- 2018-11-12 CN CN201811338137.2A patent/CN109705707A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170051157A1 (en) * | 2015-08-21 | 2017-02-23 | Chevron U.S.A. Inc. | Functional self-healing coatings and compositions and methods for forming such coatings |
| CN105770981A (en) * | 2016-03-09 | 2016-07-20 | 四川大学 | Biological medical oxidative sodium carboxymethylcellulose-dopamine adhesive and preparation method thereof |
| CN106336829A (en) * | 2016-09-07 | 2017-01-18 | 江南大学 | Preparation method for DA (Dopamine)-based adhesive |
| CN108485389A (en) * | 2018-03-19 | 2018-09-04 | 浙江巨化技术中心有限公司 | A kind of fluoropolymer powder coatings and its preparation method and application |
| CN108753137A (en) * | 2018-05-30 | 2018-11-06 | 安徽宇瑞环保建设有限公司 | A kind of environmental protection equipment surface aging resistant coating |
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Application publication date: 20190503 |