CN107903764A - A kind of long-acting type water-thinned epoxy zinc-rich anti-corrosion primer and its coating process - Google Patents

A kind of long-acting type water-thinned epoxy zinc-rich anti-corrosion primer and its coating process Download PDF

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Publication number
CN107903764A
CN107903764A CN201711177381.0A CN201711177381A CN107903764A CN 107903764 A CN107903764 A CN 107903764A CN 201711177381 A CN201711177381 A CN 201711177381A CN 107903764 A CN107903764 A CN 107903764A
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China
Prior art keywords
component
zinc
epoxy
long
acting type
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Pending
Application number
CN201711177381.0A
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Chinese (zh)
Inventor
夏文丽
吴光雨
杨霞
宋莹莹
杨晓晨
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Shanghai Building Science Research Institute Co Ltd
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Shanghai Building Science Research Institute Co Ltd
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Priority to CN201711177381.0A priority Critical patent/CN107903764A/en
Publication of CN107903764A publication Critical patent/CN107903764A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • C09D5/10Anti-corrosive paints containing metal dust
    • C09D5/106Anti-corrosive paints containing metal dust containing Zn
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00Metallic substrate
    • B05D2202/10Metallic substrate based on Fe

Abstract

The invention discloses a kind of long-acting type water-thinned epoxy zinc-rich anti-corrosion primer and its coating process, which is the mixture of component A and B, and by weight, the mixed proportion of the component A and B is 4:1~6:1;Wherein, the component A is the composition of following mass parts material:5~8 parts of epoxy hardener, 78~85 parts of zinc powder, 0.5~2 part of powdery anti-settling agent, 0.5~1 part of liquid anti-settling agent, 8~15 parts of cosolvent, 0.1~0.3 part of defoamer and anti-0.5~1 part of flash rusting agent;The component B is the composition of following mass parts material:80~90 parts of aqueous epoxy emulsion, 10~15 parts of water, 0.5~1 part of fungicide, 1~2 part of propane diols and defoamer are appropriate.

Description

A kind of long-acting type water-thinned epoxy zinc-rich anti-corrosion primer and its coating process
Technical field
The invention belongs to the coating of chemical industrial field, and in particular to a kind of water-thinned epoxy zinc-rich for construction steel structure Anti-corrosion primer and its coating process.
Background technology
At present, what the application of construction steel structure long-acting type anti-corrosion primer was most is solvent type epoxy zinc rich primer.But with The enhancing of environmental consciousness and perfecting for environmental regulation, traditional solvent-borne coating is due to VOC containing volatile organic compound and is harmful to Air pollutants HAP, using being above more and more restricted.Therefore, develop and promote low the VOC even environment-friendly type water of Diamond Search Property anticorrosive paint is trend of the times, this also promotes everybody into the research to water-based epoxy zinc-rich primer.
Water-based epoxy zinc-rich primer of the prior art, such as the Chinese patent literature of Application No. 201510066224.7, " double-component aqueous epoxy zinc rich primer of heavy antisepsis and preparation method thereof " is disclosed, although which is to make diluent with water, but It is because the viscosity of epoxy resin is very big, it is necessary to substantial amounts of reactive diluent and cosolvent, necessarily containing many organic solvents, gas Taste is relatively pungent, and viscosity is unfavorable for greatly construction and filming performance.
The Chinese patent literature of Application No. 201610310867.6, discloses a kind of water-based epoxy zinc-rich primer, the production Product durability is poor, without exception when only resistance to salt water (3%) 168 is small, this does not reach the product standard of zinc-rich paint much.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of function admirable, construction technology simplicity, anti-corrosive durability Good long-acting type water-thinned epoxy zinc-rich anti-corrosion primer.
Its technical problem to be solved can be implemented by the following technical programs.
A kind of long-acting type water-thinned epoxy zinc-rich anti-corrosion primer, its feature are that the priming paint is the mixture of component A and component B, By weight percentage, the mixed proportion of the component A and component B are 4:1~6:1;Wherein,
The component A is the composition of following mass parts material:5~8 parts of epoxy hardener, 78~85 parts of zinc powder, powdery 0.5~2 part of anti-settling agent, 0.5~1 part of liquid anti-settling agent, 8~15 parts of cosolvent, 0.1~0.3 part of defoamer and anti-flash rusting agent 0.5 ~1 part;
The component B is the composition of following mass parts material:80~90 parts of aqueous epoxy emulsion, 10~15 parts of water, is killed 0.5~1 part of microbial inoculum, 1~2 part of propane diols and defoamer are appropriate.
Further as the technical program is improved, and the epoxy hardener cures for modified polyamine aqueous polyamide class Agent.It is required that viscosity is low, wetability is good, suitable for preparing high filling paint.
Also serve as the further improvement of the technical program, the zinc powder is 325 mesh, 500 mesh, 800 mesh spherical zinc powders and One or two kinds of mixture in zinc flake.
Also improved as the further of the technical program, the powdery anti-settling agent is gas silicon, water-based bentonite and water-based One or two kinds of mixture in polyamide wax.
Improved again as the further of the technical program, the cosolvent is propylene glycol monomethyl ether, propandiol butyl ether and At least one of butyl glycol ether.
Same to be improved as the further of the technical program, the aqueous epoxy emulsion dissipates for solid epoxy moisture Lotion, its epoxide equivalent are 450~600g/eq, and low viscosity, low VOC content and solids content are 52%~55%.
Further, the component A uses following preparation method:
1. cosolvent is accurately weighed weight and added in stirred tank by, it is slowly stirred;
2. precise epoxy hardeners, are slowly added into stirred tank during stirring;
3. continues to stir, prevent then to defoamer, anti-flash rusting agent, the liquid that formula ratio is successively added in said mixture Heavy agent, powder anti-settling agent and zinc powder;
After 4. adds zinc powder, mixing speed is improved to 1000 revs/min, continues stirring 20~30 minutes, obtains component A.
Also further, the component B uses following preparation method:
1. adds propane diols, defoamer, fungicide in deionized water according to formula ratio, in turning for 300~500r/min The lower stirring 5min of speed obtains being sufficiently mixed solution;
2. adds the aqueous epoxy emulsion of formula ratio into above-mentioned mixed solution, mixing speed is 700~800 revs/min, Obtain component B.
Another technical problem to be solved by this invention is to provide a kind of coating process of above-mentioned anti-corrosion primer.
This method comprises the following steps:
(1) grounds are handled:
The iron rust of surface of bottom material, oxide skin and other dirts are removed using the method for compressed-air blast cleaning, reach derusting grade Specified in GB/T 8923Level, surface roughness reach middle rank requirement specified in GB/T 13288.1;
(2) applications:
By the way of brushing or aerial spraying, application 2~3, spraying interval 6~24h, final 70~90 μ of thickness m。
Relative to traditional solvent type epoxy zinc-rich anti-corrosion primer, the water-thinned epoxy zinc-rich of long-acting type of the present invention is prevented Rotten priming paint, using the raw material of aqueous, environmental protective, greatly reduces the discharge of harmful substance, eliminate because a large amount of solvents assemble caused by pair Environment and the infringement of construction personnel.In addition the present invention uses low-viscosity epoxy lotion and curing agent, is not required to add substantial amounts of ring Oxygen diluent is with regard to that can obtain the product of low viscosity so that construction technology is easy, and filming performance is good, and anti-corrosive durability is good, is suitable for Antiseptic property requires high construction steel structure component.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, but the present invention is not limited to following implementation Example.
Table 1:
The component proportion of long-acting type water-based epoxy zinc-rich primer in embodiment 1 to embodiment 5 is as shown in table 1 below.Implement The preparation method of long-acting type water-based epoxy zinc-rich primer in example 1 to embodiment 5 is as follows:
(1) preparation method of .A components:
1. cosolvent is accurately weighed weight and added in stirred tank by, it is slowly stirred;
2. precise epoxy hardeners, are slowly added into stirred tank during stirring;
3. continues to stir, prevent then to defoamer, anti-flash rusting agent, the liquid that formula ratio is successively added in said mixture Heavy agent, powder anti-settling agent, zinc powder;
After 4. adds zinc powder, mixing speed is improved to 1000 revs/min, continues stirring 20~30 minutes, obtains component A.
(2) preparation method of .B components:
1. adds propane diols, defoamer, fungicide in deionized water according to formula ratio, in turning for 300~500r/min The lower stirring 5min of speed is sufficiently mixed;
2. adds the aqueous epoxy emulsion of formula ratio into above-mentioned mixed liquor, mixing speed is 700~800 revs/min, is obtained To B component.
(3) presses component A:B component=4:1 weight ratio is uniformly mixed, that is, obtains long-acting type water-thinned epoxy zinc-rich anti-corrosion bottom Paint.
According to HG/T 3668-2009《Zinc rich primer》Standard is detected, and the properties of product of embodiment 1 to embodiment 5 are such as Shown in table 2.
Table 2:

Claims (9)

  1. A kind of 1. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer, it is characterised in that the priming paint is the mixture of component A and component B, By weight percentage, the mixed proportion of the component A and component B are 4:1~6:1;Wherein,
    The component A is the composition of following mass parts material:5~8 parts of epoxy hardener, 78~85 parts of zinc powder, powdery is anti-settling 0.5~2 part of agent, 0.5~1 part of liquid anti-settling agent, 8~15 parts of cosolvent, 0.1~0.3 part of defoamer and anti-flash rusting agent 0.5~1 Part;
    The component B is the composition of following mass parts material:80~90 parts of aqueous epoxy emulsion, 10~15 parts of water, fungicide 0.5~1 part, 1~2 part of propane diols and defoamer are appropriate.
  2. 2. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer according to claim 1, it is characterised in that the epoxy hardener For modified polyamine aqueous polyamide class curing agent.
  3. 3. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer according to claim 1, it is characterised in that the zinc powder is One or two kinds of mixture in 325 mesh, 500 mesh, 800 mesh spherical zinc powders and zinc flake.
  4. 4. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer according to claim 1, it is characterised in that the powdery is anti-settling Agent is one or two kinds of mixture in gas silicon, water-based bentonite and aqueous polyamide wax.
  5. 5. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer according to claim 1, it is characterised in that the cosolvent is At least one of propylene glycol monomethyl ether, propandiol butyl ether and butyl glycol ether.
  6. 6. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer according to claim 1, it is characterised in that the water-base epoxy Lotion is solid epoxy water dispersion emulsion, its epoxide equivalent is 450~600g/eq, and low viscosity, low VOC content solid contain Measure as 52%~55%.
  7. 7. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer according to claim 1, it is characterised in that the component A is used Following preparation method:
    1. cosolvent is accurately weighed weight and added in stirred tank by, it is slowly stirred;
    2. precise epoxy hardeners, are slowly added into stirred tank during stirring;
    3. continues to stir, then to successively added in said mixture the defoamer of formula ratio, anti-flash rusting agent, liquid anti-settling agent, Powder anti-settling agent and zinc powder;
    After 4. adds zinc powder, mixing speed is improved to 1000 revs/min, continues stirring 20~30 minutes, obtains component A.
  8. 8. long-acting type water-thinned epoxy zinc-rich anti-corrosion primer according to claim 1, it is characterised in that the component B is used Following preparation method:
    1. adds propane diols, defoamer, fungicide in deionized water according to formula ratio, under the rotating speed of 300~500r/min Stirring 5min obtains being sufficiently mixed solution;
    2. adds the aqueous epoxy emulsion of formula ratio into above-mentioned mixed solution, mixing speed is 700~800 revs/min, is obtained Component B.
  9. 9. the coating process of long-acting type water-thinned epoxy zinc-rich anti-corrosion primer described in any claim in a kind of claim 1-8, It is characterised in that it includes following steps:
    (1) grounds are handled:
    The iron rust of surface of bottom material, oxide skin and other dirts are removed using the method for compressed-air blast cleaning, derusting grade is reached GB/T Specified in 8923Level, surface roughness reach middle rank requirement specified in GB/T 13288.1;
    (2) applications:
    By the way of brushing or aerial spraying, application 2~3,6~24h of spraying interval, final 70~90 μm of thickness.
CN201711177381.0A 2017-11-23 2017-11-23 A kind of long-acting type water-thinned epoxy zinc-rich anti-corrosion primer and its coating process Pending CN107903764A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109233559A (en) * 2018-08-06 2019-01-18 浩力森涂料(上海)有限公司 A kind of high-performance water-based container zinc-rich paint and its manufacturing method
CN109294399A (en) * 2018-10-16 2019-02-01 无锡市太湖防腐材料有限公司 Steel surface anti-corrosion water-based epoxy zinc-rich primer and preparation method thereof
CN109468027A (en) * 2019-01-07 2019-03-15 浙江波磊涂料有限公司 A kind of epoxy zinc rich primer and preparation method thereof
CN109608983A (en) * 2018-11-30 2019-04-12 镇江利德尔复合材料有限公司 A kind of anticorrosive coating and preparation method thereof for underground petroleum storage tank
CN110591505A (en) * 2019-09-26 2019-12-20 中国海洋石油集团有限公司 Thick-coating type water-based epoxy zinc-rich anticorrosive paint and preparation method thereof
CN110903737A (en) * 2019-11-29 2020-03-24 深圳市肯德高建材有限公司 Environment-friendly two-component water-based epoxy zinc-rich special coating composition and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102863874A (en) * 2012-09-27 2013-01-09 中远关西涂料化工(天津)有限公司 Water-base epoxy zinc-rich priming paint and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102863874A (en) * 2012-09-27 2013-01-09 中远关西涂料化工(天津)有限公司 Water-base epoxy zinc-rich priming paint and preparation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109233559A (en) * 2018-08-06 2019-01-18 浩力森涂料(上海)有限公司 A kind of high-performance water-based container zinc-rich paint and its manufacturing method
CN109294399A (en) * 2018-10-16 2019-02-01 无锡市太湖防腐材料有限公司 Steel surface anti-corrosion water-based epoxy zinc-rich primer and preparation method thereof
CN109608983A (en) * 2018-11-30 2019-04-12 镇江利德尔复合材料有限公司 A kind of anticorrosive coating and preparation method thereof for underground petroleum storage tank
CN109468027A (en) * 2019-01-07 2019-03-15 浙江波磊涂料有限公司 A kind of epoxy zinc rich primer and preparation method thereof
CN110591505A (en) * 2019-09-26 2019-12-20 中国海洋石油集团有限公司 Thick-coating type water-based epoxy zinc-rich anticorrosive paint and preparation method thereof
CN110591505B (en) * 2019-09-26 2021-07-13 中国海洋石油集团有限公司 Thick-coating type water-based epoxy zinc-rich anticorrosive paint and preparation method thereof
CN110903737A (en) * 2019-11-29 2020-03-24 深圳市肯德高建材有限公司 Environment-friendly two-component water-based epoxy zinc-rich special coating composition and preparation method thereof
CN110903737B (en) * 2019-11-29 2021-06-25 深圳市肯德高建材有限公司 Environment-friendly two-component water-based epoxy zinc-rich special coating composition and preparation method thereof

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