CN105238157A - Corrosion-resistant marine coating and manufacturing method thereof - Google Patents

Abstract

The invention discloses a corrosion-resistant marine coating. The coating is prepared by mixing and dissolving chlorinated rubber and furan resin, and adding coupling-agent-coated modified nanometer calcium titanate and other effective auxiliary agents at the same time; and all the components are uniformly dispersed and draw on each other's strength. Due to the composition of a C-Cl bond with great polarity, corrosion resistance of the coating is increased and the disadvantages of large brittleness, low toughness, poor adhesion on a substrate material and the like of a chlorinated rubber coating are improved; meanwhile, added metal aluminum powder can significantly improve permeability and electrochemical corrosion resistance of the coating so as to effectively enhance durability and weather resistance of ship bottoms. The coating prepared provided by the invention is easy and practicable to prepare, has good corrosion resistance, weather resistance and antifouling properties, can be applied to prevention of adhesion of marine organisms on the soaked parts like constructs, ships, fishing nets and the like in seawater, and has a wide application scope and broad prospects.

Description

A kind of anticorrosive marine finish and preparation method thereof

Technical field

The present invention relates to technical field of coatings, particularly relate to a kind of anticorrosive marine finish and preparation method thereof.

Background technology

Compared with land natural condition, the bacterium etc. in the impact of the temperature of the ultraviolet in ocean environment, salt fog, temperature and humidity, seawater and flow velocity, dissolved oxygen of seawater and saltiness, wave, the shock of floating matter, marine organisms, ocean bottom soil all can cause the corrosion of steel beam column to some extent.Boats and ships are in the corrosive environment of this harshness for a long time; make steel beam column erosion rate very fast; address this problem and need to develop a kind of novel ship paint in the above position of planking load water line or hull bottom; form the impact that layer protective layer reduces the oceanic climate corrosion of strong variations, and this coating needs to possess following characteristic: good ornamental, resistance to sea atmosphere corrosion, resistance to tanning by the sun property, salt fog resistance, high adhesive force and good snappiness etc.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of anticorrosive marine finish and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of anticorrosive marine finish, is made up of the raw material of following weight part: chlorinated rubber 31-33, furane resin 14-16, aluminium powder 10-11, nano barium titanate calcium 7-9, white mica 4-6,2-ethyl-4-methylimidazole 3.5-4.1, polyamide wax 8-10, Vanillyl pelargonic amide 1-2, aramid pulp 3-5, magnesium sulfate 2-3, methacryloyloxypropyl methyl diethoxy silane 9-11, propyl carbinol 14-16, dimethylbenzene 60-70, compact agent 3-5.

Described compact agent is made up of following raw materials in part by weight: nano titanium oxide 4-5, yttrium element 0.1-0.15, Sodium hexametaphosphate 99 1-2, nano titanium carbide 0.2-0.3, neopentyl glycol 6-8, TriMethylolPropane(TMP) 2-3, vulcabond 3-4, dipropylene glycol 12-13, ethanol 30-40, its preparation method is by neopentyl glycol, TriMethylolPropane(TMP), nano titanium oxide joins in ethanol, be warming up to 60-75 DEG C, dispersed with stirring 40-50 minute, then, add vulcabond, Sodium hexametaphosphate 99, stir 40-60 minute, be warming up to 85-95 DEG C again, add other surplus stock, stir 2-3 hour, cool rear grinding and get final product.

The making method of described a kind of anticorrosive marine finish, comprises the following steps:

(1) nano barium titanate calcium is joined in propyl carbinol, ultrasonic disperse 30-50 minute, add methacryloyloxypropyl methyl diethoxy silane, be warming up to 85-95 DEG C, add aluminium powder and keep temperature stirring reaction 3-6 hour, be cooled to room temperature and obtain coating modification nano barium titanate calcium through centrifugation, washing drying;

(2) polyamide wax, Vanillyl pelargonic amide are mixed and heated to 150-170 ° of C, are cooled to 60-70 DEG C and add white mica, aramid pulp stirring and evenly mixing, with 600-800 rev/min of grinding distribution 20 minutes;

(3) chlorinated rubber, furane resin and dimethylbenzene being dropped into heated and stirred in high mixer makes it dissolve, add step (1) material high-speed dispersion 2-4 hour, leave standstill 30-50 minute, add step (2) material and other remaining components high speed dispersion 1-2 hour, be ground to fineness with conoidal mill and reach 40 μm of dischargings.

Advantage of the present invention is: the present invention by chlorinated rubber and furane resin miscible, add the nano barium titanate calcium through coupling agent coating modification and other effective auxiliary agent simultaneously, be uniformly dispersed between each composition, mutually learn from other's strong points to offset one's weaknesses, owing to constituting the larger C-Cl key of polarity, it is large that the erosion resistance not only increasing coating also improves chlorinated rubber coating fragility, toughness is low, to defects such as the poor adhesive force of base material, and interpolation metallic aluminium powder can significantly improve coating perviousness and resistance to electrochemical corrosion energy, effective weather resistance and weathering resistance improving hull bottom, preparation method for coating of the present invention is simple, anticorrosive weathering resistance and didirtresistance better, also can be used for the structure prevented in seawater, boats and ships, the immersion parts such as fishing net adhere to marine life, applied range has a extensive future.

Embodiment

A kind of anticorrosive marine finish, is made up of the raw material of following weight part: chlorinated rubber 31, furane resin 14, aluminium powder 10, nano barium titanate calcium 7, white mica 4,2 ethylmethylimidazolium 3.5, polyamide wax 8, Vanillyl pelargonic amide 1, aramid pulp 3, magnesium sulfate 2, methacryloyloxypropyl methyl diethoxy silane 9, propyl carbinol 14, dimethylbenzene 60, compact agent 4.

Described compact agent is made up of following raw materials in part by weight: nano titanium oxide 5, yttrium element 0.1, Sodium hexametaphosphate 99 1, nano titanium carbide 0.3, neopentyl glycol 7, TriMethylolPropane(TMP) 2, vulcabond 4, dipropylene glycol 12, ethanol 37, its preparation method is by neopentyl glycol, TriMethylolPropane(TMP), nano titanium oxide joins in ethanol, be warming up to 60-75 DEG C, dispersed with stirring 40-50 minute, then, add vulcabond, Sodium hexametaphosphate 99, stir 40-60 minute, be warming up to 85-95 DEG C again, add other surplus stock, stir 2-3 hour, cool rear grinding and get final product.

The making method of described a kind of anticorrosive marine finish, comprises the following steps:

(1) nano barium titanate calcium is joined in propyl carbinol, ultrasonic disperse 30 minutes, add methacryloyloxypropyl methyl diethoxy silane, be warming up to 85 DEG C, add aluminium powder and keep temperature stirring reaction 3 hours, be cooled to room temperature and obtain coating modification nano barium titanate calcium through centrifugation, washing drying;

(2) polyamide wax, Vanillyl pelargonic amide are mixed and heated to 150 ° of C, are cooled to 60 DEG C and add white mica, aramid pulp stirring and evenly mixing, with 600 revs/min of grinding distributions 20 minutes;

(3) chlorinated rubber, furane resin and dimethylbenzene being dropped into heated and stirred in high mixer makes it dissolve, add step (1) material high-speed and disperse 2 hours, leave standstill 30 minutes, add step (2) material and other remaining component high speed dispersion 1 hour, be ground to fineness with conoidal mill and reach 40 μm of dischargings.

The technical parameter index of the marine finish using the present invention to produce is as follows:

(1) glossiness 92;

(2) artificial sea water immersion 60d under normal temperature, paint film is non-foaming, do not come off, non-corrosive;

(3) salt fog 720h paint film non-foaming, do not come off, non-corrosive.

Claims (2)

1. an anticorrosive marine finish, it is characterized in that, be made up of the raw material of following weight part: chlorinated rubber 31-33, furane resin 14-16, aluminium powder 10-11, nano barium titanate calcium 7-9, white mica 4-6,2-ethyl-4-methylimidazole 3.5-4.1, polyamide wax 8-10, Vanillyl pelargonic amide 1-2, aramid pulp 3-5, magnesium sulfate 2-3, methacryloyloxypropyl methyl diethoxy silane 9-11, propyl carbinol 14-16, dimethylbenzene 60-70, compact agent 3-5, described compact agent is made up of following raw materials in part by weight: nano titanium oxide 4-5, yttrium element 0.1-0.15, Sodium hexametaphosphate 99 1-2, nano titanium carbide 0.2-0.3, neopentyl glycol 6-8, TriMethylolPropane(TMP) 2-3, vulcabond 3-4, dipropylene glycol 12-13, ethanol 30-40, its preparation method is by neopentyl glycol, TriMethylolPropane(TMP), nano titanium oxide joins in ethanol, be warming up to 60-75 DEG C, dispersed with stirring 40-50 minute, then, add vulcabond, Sodium hexametaphosphate 99, stir 40-60 minute, be warming up to 85-95 DEG C again, add other surplus stock, stir 2-3 hour, cool rear grinding and get final product.

2. the making method of a kind of anticorrosive marine finish according to claim 1, is characterized in that comprising the following steps:

(1) nano barium titanate calcium is joined in propyl carbinol, ultrasonic disperse 30-50 minute, add methacryloyloxypropyl methyl diethoxy silane, be warming up to 85-95 DEG C, add aluminium powder and keep temperature stirring reaction 3-6 hour, be cooled to room temperature and obtain coating modification nano barium titanate calcium through centrifugation, washing drying;

(2) polyamide wax, Vanillyl pelargonic amide are mixed and heated to 150-170 ° of C, are cooled to 60-70 DEG C and add white mica, aramid pulp stirring and evenly mixing, with 600-800 rev/min of grinding distribution 20 minutes;

(3) chlorinated rubber, furane resin and dimethylbenzene being dropped into heated and stirred in high mixer makes it dissolve, add step (1) material high-speed dispersion 2-4 hour, leave standstill 30-50 minute, add step (2) material and other remaining components high speed dispersion 1-2 hour, be ground to fineness with conoidal mill and reach 40 μm of dischargings.