The high-performance impact resisting steel structural paint
Technical field
The present invention relates to the technical field of coatings of chemical industry technology, specifically, relate to the development of high-performance impact resisting steel structural paint.
Background technology
Steel construction coating is a kind of in the numerous paint, and it is applicable to pipeline and bridge, power equipment, rack and the etch-proof protections of all kinds of chemical industry equipment such as sewage, seawater, service water, oil transportation, gas transmission, is with a wide range of applications.But, finish the steel construction of outer wall coating in transportation with existing steel construction coating, because will be through lifting, automotive, or processes such as shipment, sea-freight, can be subjected in various degree collision, damage, therefore, present most coated steel structure all needs to carry out coating or overcoating after arriving the point of destination, this has not only wasted great amount of manpower and material resources, has improved cost, also can influence the progress of construction.
At present, main open source literature about stamping enamel has: Chinese patent CN 101580670A discloses " a kind of impact-resistant primer coating ", and the weight percent of this coating each component is: titanium dioxide slurry 52~62, n-butyl ether terpolycyantoamino-formaldehyde resin 5~7, sticking power promotor 2~4, elastic resin 5~7, propyl carbinol 2~5, ethyl acetate 4~6, conductive agent 0.5~1, dimethylbenzene 2~4, saturated polyester resin 14~24; Being formulated as of its titanium dioxide slurry: titanium dioxide 54, saturated polyester resin 36, dimethylbenzene 1, ethylene glycol ether acetate 2, solvent oil 2, dispersion agent 2.5, organobentonite 2.5.Chinese patent CN 101245208A discloses " compound zinc-rich paint of a kind of Shockproof corrosion resistant nano and preparation method thereof ", and this coating A component is formed massfraction and is: in the silicic acid of modulus 3~5-and sodium silicate solution 63%~85%, benzene emulsion or organosilicon crylic acid latex 10%~30%, zeopan inorganic gel 1%~5%, tensio-active agent FC80 0.1%~0.5%, BD-800 multifunctional assistant 0.1%~0.5%, BD-710 defoamer 0%~1%.Chinese patent CN 1197823A discloses " a kind of coating composition of shock-resistant wearing and tearing and preparation method thereof " and coated goods, it comprises (A) and has the aliphatic ester group of a plurality of reactive functional groups or the polymerization or the oligomeric composition of aliphatic ether, its reactive functional group degree is 2~5, equivalent weight is 150~750, and the compound that (B) contains a plurality of groups that can react with the reactive functional groups on the composition (A).
The stamping enamel of above-mentioned patent disclosure can satisfy the requirement of general impact resistance, be basically 45 microns following impact strengths greater than 50cmkg, mainly be applicable to aspects such as medical device, automobile.And steel construction is in transportation and hoisting process, and the external force that coating is subjected to is far longer than 50cmkg, and that the impact strength data of testing on general tinplate and carbon steel sheet will be big with respect to the impact strength data of steel construction (as steel pipe) material test piece is many.Therefore, develop the higher steel construction coating of a kind of impact resistance is the thing that steel construction manufacturer and anticorrosion manufacturer are concerned about always.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of high impact-resistant is provided, steel construction coating with good chemicals-resistant corrosive nature and mechanical property, its protection against corrosion and shock resistance should be more excellent than currently available products, and the consume of steel construction coating in transportation after applying with it should obviously reduce.
For achieving the above object, the technical scheme taked of the present invention is:
A kind of high-performance impact resisting steel structural paint is characterized in that, comprises A component and B component, and the mass percent of two kinds of component raw material compositions is:
The A component:
Resins, epoxy 20.0~40.0%;
Resins, epoxy 1 5.0~10.0%;
Toughened resin 5.0~15.0%;
Thinner 10.0~30.0%;
Dispersion agent 0.1~0.3%;
Defoamer 0.2~0.5%;
Flow agent 0.3~0.8%;
Aerosil 0.5~2.5%;
Potassium titanate crystal whisker 1.0~4.0%;
Polynite 0.5~5.0%;
Titanium dioxide 10.0~25.0%;
Talcum powder 5.0~15.0%;
Carbon black 0.01~1.00%;
The B component:
Phenol aldehyde modified epoxy curing agent 5.0~15.0%;
Described A component and B component are used by mass ratio A:B=3~5:1.
The mass percent that described A component raw material is formed is preferably:
Resins, epoxy 25.0~36.0%;
Resins, epoxy 1 5.5~9.5%;
Toughened resin 6.0~12.0%;
Thinner 12.0%~25.0%;
Dispersion agent 0.15%~0.25%;
Defoamer 0.25%~0.35%;
Flow agent 0.35%~0.65%;
Aerosil 0.6%~1.5%;
Potassium titanate crystal whisker 1.5%~3.0%;
Polynite 1.0~4.0%;
Titanium dioxide 12.0%~20.0%;
Talcum powder 6.0%~12.0%;
Carbon black 0.02%~0.08%;
The mass percent that described B component raw material is formed is preferably:
Phenol aldehyde modified epoxy curing agent 8.0~12%.
Optionally, described Resins, epoxy is one or both in E-20 Resins, epoxy, the rubber modified epoxy resin.
Optionally, one or both in described toughened resin be the dimeracid addition modification Resins, epoxy, CTBN modified epoxy and the diglycidyl ether epoxy resin.
Optionally, the described thinner mixed diluent that is dimethylbenzene, propyl carbinol, pimelinketone.
Optionally, described dispersion agent is a BMC V2 salt unsaturated carboxylic acid.
Optionally, described defoamer is the fluorine-containing type siloxane defoamer of BMC 806.
Optionally, described flow agent is a BMC 1091S type siloxane flow agent.
Optionally, described potassium titanate crystal whisker is crystal whisker of hexa potassium titanate (K
2O6TiO
2) and/or the modified Nano polynite in one or both.
Optionally, the described solidifying agent phenol aldehyde modified amine epoxy curing agent that is Ka Delai.
The positively effect of high-performance impact resisting steel structural paint of the present invention is:
(1) Resins, epoxy of employing dimeracid addition modification, in CTBN modified epoxy and the diglycidyl ether epoxy resin one or both are as filmogen, add and to have the crystal whisker of hexa potassium titanate of tunnel-like structures and/or in the modified Nano polynite one or both as the shock resistance filler, adopt phenol aldehyde modified amine as solidifying agent, make this coating have favorable mechanical performance, chemical property and high shock resistance, except that good Corrosion Protection, the coating of 150 micron thickness on the carbon steel sheet can be more than the anti-200kg.cm impact;
(2) coating processes safety, little to the influence of environment;
(3) the coating loss percentage of steel construction in transportation of finishing coating reduced greatly, reduce coating or overcoating, save the man power and material, reduce cost, improve operating efficiency.
Embodiment
Below provide the embodiment of high-performance impact resisting steel structural paint of the present invention, provide 3 embodiment.But should be pointed out that enforcement of the present invention is not limited to following embodiment.
Embodiment 1The preparation of high-performance impact resisting steel structural paint
(1) proportioning raw materials
Comprise A component and B component, the mass percent of two kinds of component raw material compositions is:
The A component:
Resins, epoxy 28.00% adopts the product of HongChang Electronic Materials Co., Ltd or Yue Hua company of China Petrochemical Industry;
Resins, epoxy 1 8.00% adopts the product of Shenzhen Jia Dida chemical industry company limited;
Toughened resin 7.50%, group provides by the oceanic rise petroleum industry;
Thinner 22.65% adopts commercially available conventional material;
Dispersion agent 0.25% adopts two products that moisten chemical company;
Defoamer 0.34% adopts two products that moisten chemical company;
Flow agent 0.58% adopts two products that moisten chemical company;
Aerosil 0.80% adopts commercially available conventional material;
Potassium titanate crystal whisker 2.00%, group provides by the oceanic rise petroleum industry;
Polynite 2.00%, group provides by the oceanic rise petroleum industry;
Titanium dioxide 9.00% adopts the titanium white R-902 product of E.I.Du Pont Company;
Talcum powder 9.00% adopts the product of marine origin mining industry company limited;
Carbon black 0.03% adopts commercially available conventional material;
The B component:
Phenol aldehyde modified epoxy curing agent: 9.85%, adopt the product of Ka Delai company;
When coating uses A component and B component are used by mass ratio A:B=9.15:1.
A component and B component are stirred by proportioning, it are sprayed onto on the carbon steel sheet and intercepting steel pipe test plate (panel) of sandblast with the airless spraying method, treat completely solidified after, as the model of filming
aFor performance evaluation.
(2) preparation method
Above-described high-performance impact resisting steel structural paint, its concrete preparation process comprises:
(1) prepares raw material
Prepare raw material by the mass percent that above-mentioned A component and B component raw material are formed;
(2) batching and dispersion
The mass percent of forming by A component raw material adds raw material in the scuffing of cylinder bore, starts the dispersion machine stirring at low speed, adds raw material while stirring, and raw material is after finish, (1000 to change/min) disperse 30min, to obtain dispersive A component compound at a high speed;
(3) grind
The A component compound that step (2) is scattered is put into sand mill and is carried out sand milling, and fineness reaches below 40 microns; The B component need not to grind;
(4) filter and package
The A component compound that sand milling is good is put into the finished product still, opens stirrer and stirs, and connects filtering net in the exit, carries out the packing of product while filtering, and A component and B component be packing separately.
Embodiment 2The preparation of high-performance impact resisting steel structural paint
(1) proportioning raw materials:
Comprise A component and B component, the mass percent of two kinds of component raw material compositions is:
The A component:
Resins, epoxy 30.00%;
Resins, epoxy 1 6.00%;
Toughened resin 6.00%;
Thinner 21.20%;
Dispersion agent 0.22%;
Defoamer 0.30%;
Flow agent 0.52%;
Aerosil 0.90%;
Potassium titanate crystal whisker 2.30%;
Polynite 3.00%;
Titanium dioxide 13.00%;
Talcum powder 6.53%;
Carbon black 0.03%;
The B component:
Phenol aldehyde modified epoxy curing agent 10.00%;
(source of above raw material is with embodiment 1)
When coating uses A component and B component are used by mass ratio A:B=9.00:1.
A component and B component are stirred by proportioning, it are sprayed onto on the carbon steel sheet and intercepting steel pipe test plate (panel) of sandblast with the airless spraying method, treat completely solidified after, as the model of filming
bFor performance evaluation.
(2) preparation method (with embodiment 1).
Embodiment 3The preparation of high-performance impact resisting steel structural paint
(1) proportioning raw materials:
Comprise A component and B component, the mass percent of two kinds of component raw material compositions is:
The A component:
Resins, epoxy 25.00%;
Resins, epoxy 1 9.00%;
Toughened resin 9.00%;
Thinner 20.00%;
Dispersion agent 0.20%;
Defoamer 0.20%;
Flow agent 0.50%;
Aerosil 0.60%;
Potassium titanate crystal whisker 2.00%;
Polynite 1.00%;
Titanium dioxide 14.00%;
Talcum powder 8.73%;
Carbon black 0.05%;
The B component:
Phenol aldehyde modified epoxy curing agent: 9.72%;
(source of above raw material is with embodiment 1)
When coating uses with A component and B component by mass ratio A:B=9. 29:1 is used.
A component and B component are stirred by proportioning, it are sprayed onto on the carbon steel sheet and intercepting steel pipe test plate (panel) of sandblast with the airless spraying method, treat completely solidified after, as the model of filming
cFor performance evaluation.
(2) preparation method (with embodiment 1).
The model performance of filming of the high-performance impact resisting steel structural paint of embodiment 1-3 preparation sees Table 1:
Table 1. is coated with lamina membranacea performance evaluation
Has superpower impact resistance from above test-results high-performance impact resisting steel structural paint of the present invention as can be seen than general protective system.
The high-performance impact resisting steel structural paint of embodiment 1-3 preparation and the performance index of coating are for seeing Table 2:
The performance index of table 2. coating and coating