CN104497798A - Anticorrosion solvent-free epoxy coating on inner wall of drinking water pipeline - Google Patents
Anticorrosion solvent-free epoxy coating on inner wall of drinking water pipeline Download PDFInfo
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- CN104497798A CN104497798A CN201510026888.0A CN201510026888A CN104497798A CN 104497798 A CN104497798 A CN 104497798A CN 201510026888 A CN201510026888 A CN 201510026888A CN 104497798 A CN104497798 A CN 104497798A
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- drinking water
- water pipeline
- epoxy coating
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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
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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
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
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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 invention discloses an anticorrosion solvent-free epoxy coating on an inner wall of a drinking water pipeline: bisphenol A epoxy resin, novolac epoxy, titanium dioxide, calcined kaolin and coupling agent are mixed and prepared into binder component A, alicyclic amine and modified aliphatic amine are prepared into curing agent component B, the component A and the component B are used after being proportioned according to parts by weight, the epoxy coating does not contain any solvent, has high construction efficiency and excellent anticorrosion performance, is environmentally friendly, durable, and simple in preparation technology, thereby being convenient for popularization and application.
Description
Technical field
The present invention relates to steel pipe technical field of construction, specifically a kind of drinking water pipeline inner wall anti-corrosive solventless epoxy coating.
Background technology
Along with the enhancing of raising and the health care consciousness day by day of standard of living, the requirement of people on the drinking water pipeline directly affecting human health is also more and more higher, from the lead water pipe of the simplest thick bamboo tube aqueduct, ancient Roman, until present steel pipe, galvanized steel pipe, copper pipe, stainless steel tube, plastics tubing, aluminum-plastic laminated tube and plastic-coated steel etc.Copper pipe and stainless steel tube are also good drinking water pipeline, particularly copper pipe, have effect of antibiotic health.In developed country, copper drinking water pipeline rate of utilization is up to more than 70%; Some high-grade hotels of China and brown stone district have brought into use copper pipe as drinking water pipeline, but due to expensive, are not suitable for the national conditions of China, are difficult to popularize.Along with the development of inner-walls of duct lining painting technology, the steel pipe of the high performance protective system of coated inner wall starts to be widely used as drinking water pipeline, the steel pipe of coated inner wall protective system not only to have the physical strength of common steel tube, also have both wholesomeness and the erosion resistance of plastics tubing, stop the generation of " red rust " and " white rust ", having the many merits such as long service life, physical strength is high, corrosion-resistant, good, easy for installation, the withstand voltage height of sanitation performance, cost performance are high, is the drinking water pipeline of current cost performance optimum.As drinking water pipeline main pipeline and arm, the steel pipe that wall is coated with protective system can be installed easily as common steel tube, now uses in big and medium-sized cities (particularly Highrise buildings) widely.
Current domestic application at two component liquid epoxy coatings of drinking water pipeline inner wall anti-corrosive based on solvent based coating, quality solid content is general all below 85%, solvent based coating in its film process along with the volatilization of solvent, the solvent based coating of solvent based coating especially self-vulcanizing always residual a certain amount of solvent in its film forming, and the evaporation rate of residual solvent is extremely slow.Residual solvent not only has adverse influence to the sticking power of paint film, corrosion-resistant and moisture resistance etc., and the solvent more seriously slowly evaporated can pollute tap water, the paint film (especially the situation of paste paint film) that self-vulcanizing is used under hot conditions, the existence harm of residual solvent is larger, by the impact that temperature raises, residual solvent in paint film will fast to external diffusion, serious situation will cause the destruction (as bulge phenomenon) of paint film, thus cause the integral protection of paint film to lose efficacy; Solvent based coating has larger volume change in solvent evaporates film process, can form larger internal stress in some cases, the existence of this internal stress in paint film, makes paint film be easy to destroyed; The most multipotency of the state of the art that solvent based coating is current is reached to the thickness of one brushing 100 μm-150 μm, therefore multiple tracks brushing is needed to reach the coating thickness of design, cause operating efficiency low, the volatilization of solvent simultaneously can cause certain harm to the health of workmen, causes pollution to environment.Therefore, researching and developing a kind of is not the task that the art has needed containing any solvent, operating efficiency is high, antiseptic property is excellent, environmental and durable drinking water pipeline inner wall anti-corrosive solventless epoxy coating.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of containing any solvent, operating efficiency is high, antiseptic property is excellent, environmental and durable drinking water pipeline inner wall anti-corrosive solventless epoxy coating.
In order to achieve the above object, the present invention is by the following technical solutions: a kind of drinking water pipeline inner wall anti-corrosive solventless epoxy coating: be mixed and made into base-material first component by bisphenol A epoxide resin, novolac epoxy, titanium dioxide, calcined kaolin and coupling agent, solidifying agent component B is mixed with by aliphatic cyclic amine and modified fatty amine, first component and second component carry out proportioning according to mass parts, form the two component drinking water pipeline inner wall anti-corrosive solventless epoxy coating of liquid; In formula, each component composition is constructed as follows, and wherein first component is:
Component B is: aliphatic cyclic amine 40-60
Modified fatty amine 40-60
Above-mentioned first and second component contents are mass parts.
The step of preparation process of above-mentioned drinking water pipeline inner wall anti-corrosive solventless epoxy coating is as follows:
A. the preparation of first component
Weigh bisphenol A epoxide resin and novolac epoxy and coupling agent in proportion and to pour in reactor mix and blend into 30 minutes, stirring is continued 30 minutes after adding titanium dioxide and kaolin, keep 50 minutes after vacuumizing under-0.06MPa condition, carry out packing after being released by mixing liquid, it is for subsequent use that labeling knows rear vanning warehouse-in;
B. the preparation of component B
Weigh aliphatic cyclic amine and modified fatty amine in proportion, pour in reactor and stir 50 minutes, mixing liquid is released rear packing by quiet putting after 1 hour, and after labeling knowledge, vanning warehouse-in is for subsequent use.
During use, first component and second component carry out mixing match according to quality 100: 22 (or volume 3: 1), use two-pack airless sprayer (spraying level) or built-in churning spraying machine (spraying level) or hard mane bruss (brushing level) to be evenly coated with and are contained in substrate surface
Product of the present invention, by the correlation detection at China Health prevention and control center, meets the requirement of GB/T 17219 Drinking Water transmission & distribution wetting system and protective material safety evaluation standard, contrasts have the following advantages with traditional solvent based coating:
1. product is not containing any solvent, and its film process is a crosslinking reaction process completely, there is not the problem of solvent evaporates, after film forming, and noresidue solvent in paint film.
2. an application can film forming 1200 μm, and an application can meet the requirement (effectively can avoid the coating layering problem caused because of multiple tracks coating decoration, also substantially increase operating efficiency simultaneously) of design thickness;
3. volume solid content 100%, coating ungauged regions before and after film forming, wet-film thickness is basically identical with build, adds reasonably combined at formula materials of fonnulator, can make internal stress free in paint film.
4. ambient cure, and curing speed fast (1 hour surface drying is done solid work, effectively can be improved operating efficiency for 3 hours);
5. with base material, there is excellent bonding strength (relative to the qualitative test method of routine, this coating adopts the test result > 14MPa of ASTM D4541-2);
6. the toughness of excellence and resistance to impact shock;
7. good solvent resistant and chemical mediator-resitant property;
8. volatilize without any volatile component in construction process, construction safety (security of constructing can be guaranteed to a greater extent and the Health hazard reduced to the full extent workmen, especially in the environment of ventilation condition difference);
Embodiment:
Below by embodiment in detail the present invention is described in detail, a kind of drinking water pipeline inner wall anti-corrosive solventless epoxy coating:
First component formula is:
Component B is:
Aliphatic cyclic amine Ancamine2280 50
Modified fatty amine Ancamine 2,636 50
The step of preparation process of drinking water pipeline inner wall anti-corrosive solventless epoxy coating is as follows:
Weigh 55 parts of bisphenol A epoxide resins and 10 parts of novolac epoxys, 5 parts of coupling agents in proportion and to pour in reactor mix and blend into 30 minutes, stirring is continued 30 minutes after adding 15 parts of titanium dioxides and 15 parts of kaolin, keep 50 minutes after vacuumizing under-0.06MPa condition, mixing liquid is carried out packing, and it is for subsequent use that labeling knows rear vanning warehouse-in.
B. the preparation of component B
Weigh 50 parts of aliphatic cyclic amines and 50 parts of modified fatty amines, pour in reactor and stir 50 minutes, quietly put packing after 1 hour, after being known by mixing liquid labeling, vanning warehouse-in is for subsequent use.
Use after first component and second component carry out mixing match according to quality 100: 22 (or volume 3: 1).
Claims (2)
1. a drinking water pipeline inner wall anti-corrosive solventless epoxy coating: be hybridly prepared into base-material first component by bisphenol A epoxide resin, novolac epoxy, titanium dioxide, calcined kaolin and coupling agent, solidifying agent component B is mixed with by aliphatic cyclic amine and modified fatty amine, first component and second component carry out proportioning according to mass parts, form the two component drinking water pipeline inner wall anti-corrosive solventless epoxy coating of liquid; In formula, each component composition is constructed as follows, and wherein first component is:
Component B is: aliphatic cyclic amine 40-60
Modified fatty amine 40-60
Above-mentioned first and second component contents are mass parts.
2. the processing step preparing drinking water pipeline inner wall anti-corrosive solventless epoxy coating is as claimed in claim 1 as follows:
A. the preparation of first component
Weigh bisphenol A epoxide resin and novolac epoxy and coupling agent in proportion and to pour in reactor mix and blend into 30 minutes, stirring is continued 30 minutes after adding titanium dioxide and kaolin, keep 50 minutes after vacuumizing under-0.06MPa condition, carry out packing after being released by mixing liquid, it is for subsequent use that labeling knows rear vanning warehouse-in;
B. the preparation of component B
Weigh aliphatic cyclic amine and modified fatty amine in proportion, pour in reactor and stir 50 minutes, mixing liquid is released rear packing by quiet putting after 1 hour, and after labeling knowledge, vanning warehouse-in is for subsequent use.
First component and second component carry out mixing match according to quality 100: 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026888.0A CN104497798A (en) | 2015-01-20 | 2015-01-20 | Anticorrosion solvent-free epoxy coating on inner wall of drinking water pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026888.0A CN104497798A (en) | 2015-01-20 | 2015-01-20 | Anticorrosion solvent-free epoxy coating on inner wall of drinking water pipeline |
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| Publication Number | Publication Date |
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| CN104497798A true CN104497798A (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510026888.0A Pending CN104497798A (en) | 2015-01-20 | 2015-01-20 | Anticorrosion solvent-free epoxy coating on inner wall of drinking water pipeline |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108715724A (en) * | 2018-06-04 | 2018-10-30 | 北京碧海舟腐蚀防护工业股份有限公司 | Chemically-resistant epoxy novolac storage lining coating, its coating formed and the metallic structures including the coating |
| CN110625064A (en) * | 2019-09-25 | 2019-12-31 | 辽宁爱维尔金属成型科技股份有限公司 | Method for manufacturing and spraying liquid-state solvent-free epoxy resin lining nodular cast iron pipe fitting |
| CN111777914A (en) * | 2020-07-22 | 2020-10-16 | 江苏大使同丰涂料有限公司 | Solvent-free polyurethane epoxy inner wall coating |
-
2015
- 2015-01-20 CN CN201510026888.0A patent/CN104497798A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 岳跃法等: "无溶剂环氧饮水管路防腐涂料的制备及性能研究", 《中国涂料》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108715724A (en) * | 2018-06-04 | 2018-10-30 | 北京碧海舟腐蚀防护工业股份有限公司 | Chemically-resistant epoxy novolac storage lining coating, its coating formed and the metallic structures including the coating |
| CN108715724B (en) * | 2018-06-04 | 2021-05-25 | 北京碧海舟腐蚀防护工业股份有限公司 | Chemical-resistant novolac epoxy lining paint, coating formed by chemical-resistant novolac epoxy lining paint and metal structure comprising coating |
| CN110625064A (en) * | 2019-09-25 | 2019-12-31 | 辽宁爱维尔金属成型科技股份有限公司 | Method for manufacturing and spraying liquid-state solvent-free epoxy resin lining nodular cast iron pipe fitting |
| CN111777914A (en) * | 2020-07-22 | 2020-10-16 | 江苏大使同丰涂料有限公司 | Solvent-free polyurethane epoxy inner wall coating |
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