Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of high-mechanical property waterproofing work machinery coating, water-repellancy is high, good mechanical property, and has good, the easy brushing of antiseptic property, feature that film forming characteristics is good, can meet engineering mechanical device application demand.
A kind of high-mechanical property waterproofing work machinery coating that the present invention proposes, its raw material comprises by weight: fluorinated acrylate preformed solution 37-40 part, epoxy resin 25-28 part, full methyl-etherified aminoresin 12-15 part, modifying titanium dioxide 14-17 part, kaolin 12-15 part, attapulgite 7-9 part, silane coupling A-1721.5-1.8 part, dispersion agent 1-1.5 part, defoamer 1.1-1.4 part, film coalescence aid 0.6-1 part, promotor 2.5-3 part, mould inhibitor 0.5-0.8 part, solvent 32-35 part.
Preferably, the weight ratio of fluorinated acrylate preformed solution, epoxy resin, full methyl-etherified aminoresin is 38-39:26-27:13-14.
Preferably, its raw material comprises by weight: fluorinated acrylate preformed solution 38-39 part, epoxy resin 26-27 part, full methyl-etherified aminoresin 13-14 part, modifying titanium dioxide 15-16 part, kaolin 13-14 part, attapulgite 7.5-8 part, silane coupling A-1721.6-1.7 part, dispersion agent 1.2-1.4 part, defoamer 1.2-1.3 part, film coalescence aid 0.7-0.8 part, promotor 2.6-2.8 part, mould inhibitor 0.6-0.7 part, solvent 33-34 part.
Preferably, the preparation method of fluorinated acrylate preformed solution is as follows: by weight 30-33 butyl methacrylate, 18-22 part octadecyl acrylate and 1.6-1.9 part Potassium Persulphate are added the first reaction vessel, stir and obtain material A, again by 1.3-1.6 part sodium lauryl sulphate, 4-7 part polyoxyethylene glycol and 30-33 part deionized water add the second reaction vessel, raise the second reaction vessel and contents temperature thereof after stirring to 80-83 DEG C is full of nitrogen in the second reaction vessel, continue to add 15-18 part methacrylic acid PFO, 12-14 part lauryl acrylate, then the second reaction vessel and contents temperature thereof is raised to after 70-73 DEG C, in the second reaction vessel, material A is added with the speed of 1-1.5 part/min, be incubated 3-5h after adding and obtain material B, material B is cooled to 50-55 DEG C, then be 6-6.5 by the ammoniacal liquor adjust ph that massfraction is 20-22wt%, obtain fluorinated acrylate preformed solution.
Preferably, the preparation method of fluorinated acrylate preformed solution is as follows: by weight 31-32 butyl methacrylate, 19-21 part octadecyl acrylate and 1.7-1.8 part Potassium Persulphate are added the first reaction vessel, stir and obtain material A, again by 1.4-1.5 part sodium lauryl sulphate, 5-6 part polyoxyethylene glycol and 31-32 part deionized water add the second reaction vessel, raise the second reaction vessel and contents temperature thereof after stirring to 81-82 DEG C is full of nitrogen in the second reaction vessel, continue to add 16-17 part methacrylic acid PFO, 12.5-13 part lauryl acrylate, then the second reaction vessel and contents temperature thereof is raised to after 71-72 DEG C, in the second reaction vessel, material A is added with the speed of 1.2-1.3 part/min, be incubated 3.5-4h after adding and obtain material B, material B is cooled to 51-53 DEG C, then be 61-6.3 by the ammoniacal liquor adjust ph that massfraction is 205-21wt%, obtain fluorinated acrylate preformed solution.
Preferably, the preparation method of modifying titanium dioxide is as follows: drop in the 3rd reaction vessel containing 40-45 part toluene by 10-13 part nano titanium oxide, 22-25 part silane coupling agent KH570 by weight, raise the 3rd reaction vessel and contents temperature thereof to after 80-83 DEG C, stir 22-24h, centrifugation obtains material C again, with toluene wash material C 3-5 time, then centrifugation obtains material D, and material D dry 20-22h at 60-65 DEG C of temperature is obtained modifying titanium dioxide.
Preferably, the preparation method of modifying titanium dioxide is as follows: drop in the 3rd reaction vessel containing 42-44 part toluene by 11-12 part nano titanium oxide, 23-24 part silane coupling agent KH570 by weight, raise the 3rd reaction vessel and contents temperature thereof to after 81-82 DEG C, stir 22.5-23h, centrifugation obtains material C again, with toluene wash material C3-4 time, then centrifugation obtains material D, and material D dry 21-21.5h at 62-63 DEG C of temperature is obtained modifying titanium dioxide.
Preferably, the median size of nano titanium oxide is 20-50nm.
Preferably, the median size of nano titanium oxide is 30-40nm.
The present invention coordinates as filmogen using fluorinated acrylate preformed solution, epoxy resin, full methyl-etherified aminoresin, makes good waterproof performance of the present invention, mechanicalness high, possesses excellent antiseptic property and levelling property, film forming characteristics and higher sticking power simultaneously, wherein, in the preparation process of fluorinated acrylate preformed solution, the acrylic compounds polymerizations such as butyl methacrylate, octadecyl acrylate, lauryl acrylate form acrylic ester polymer, have good film-forming properties, thermostability, chemical stability and oxidation-resistance, and methacrylic acid PFO is under the effect of initiator potassium persulfate, the fluoro-containing group of self is incorporated in acrylic polymer by forming C-F key, due to fluorion electronegativity is large, C-F key is stable and fluorine-containing side chain orientation outwardly, shielding protection can be formed to acrylic ester polymer main chain and interior molecules, thus substantially increase unreactiveness of the present invention, water-repellancy, pollution resistance, oil-proofness, simultaneously, C-F key bond length is short, bond energy large, thus significantly improves mechanical property of the present invention, polyoxyethylene glycol due to containing abundant hydroxyl, for providing cross-linking set between solution molecule, make the present invention possess higher crosslinking degree, thus fast reaction speed, enhancing stability of solution, and greatly strengthen antiseptic property of the present invention and snappiness, sodium lauryl sulphate, as emulsifying agent, effectively can be improved the various surface tension formed between phase in fluorinated acrylate preformed solution, form uniform and stable dispersion system, make the present invention be easy to brushing, and when reacting, in the second reaction vessel, be full of nitrogen, the raw material participating in reaction can be prevented by the dioxygen oxidation in air, improve the purity of fluorinated acrylate preformed solution, and the interpolation one of modifying titanium dioxide, kaolin, attapulgite is improved film forming characteristics of the present invention, add viscosity of the present invention, reduce cost of the present invention, two is under the effect of silane coupling A-172, be evenly dispersed among the present invention, greatly improve mechanical property of the present invention, intensity, water-repellancy and wear resisting property, wherein modifying titanium dioxide is that nano titanium oxide is made by silane coupling agent KH570 modification in toluene environment, after titanium dioxide surface grafted silane coupling agent KH570, very easily compatible with major ingredient in the present invention, when the present invention receives External Force Acting, modifying titanium dioxide can as the intermolecular cross-linking set of the present invention, be uniformly distributed external force, prevent the present invention from breaking, further enhancing mechanical property of the present invention, water-repellancy and intensity.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of high-mechanical property waterproofing work machinery coating that the present invention proposes, its raw material comprises by weight: fluorinated acrylate preformed solution 40 parts, epoxy resin 25 parts, 15 parts, full methyl-etherified aminoresin, modifying titanium dioxide 14 parts, kaolin 15 parts, attapulgite 7 parts, silane coupling A-1721.8 parts, dispersion agent 1 part, defoamer 1.4 parts, film coalescence aid 0.6 part, promotor 3 parts, mould inhibitor 0.5 part, solvent 35 parts;
The preparation method of fluorinated acrylate preformed solution is as follows: by weight 30 butyl methacrylate, 22 parts of octadecyl acrylate and 1.6 parts of Potassium Persulphates are added the first reaction vessel, stir and obtain material A, again by 1.6 parts of sodium lauryl sulphate, 4 parts of polyoxyethylene glycol and 33 parts of deionized waters add the second reaction vessel, raise the second reaction vessel and contents temperature to 80 thereof DEG C after stirring and be full of nitrogen in the second reaction vessel, continue to add 18 parts of methacrylic acid PFO, 12 parts of lauryl acrylates, then after raising the second reaction vessel and contents temperature to 73 thereof DEG C, in the second reaction vessel, material A is added with the speed of 1 part/min, be incubated 5h after adding and obtain material B, material B is cooled to 50 DEG C, then be 6 by the ammoniacal liquor adjust ph that massfraction is 22wt%, obtain fluorinated acrylate preformed solution,
The preparation method of modifying titanium dioxide is as follows: be that the nano titanium oxide of 40nm, 23 parts of silane coupling agent KH570 inputs are containing in the 3rd reaction vessel of 44 parts of toluene by weight by 12 parts of median sizes, after raising the 3rd reaction vessel and contents temperature to 81 thereof DEG C, stir 23h, centrifugation obtains material C again, with toluene wash material C 3 times, centrifugation obtains material D again, and material D dry 21h at 63 DEG C of temperature is obtained modifying titanium dioxide.
Embodiment 2
A kind of high-mechanical property waterproofing work machinery coating that the present invention proposes, its raw material comprises by weight: fluorinated acrylate preformed solution 37 parts, epoxy resin 28 parts, 12 parts, full methyl-etherified aminoresin, modifying titanium dioxide 17 parts, kaolin 12 parts, attapulgite 9 parts, silane coupling A-1721.5 parts, dispersion agent 1.5 parts, defoamer 1.1 parts, film coalescence aid 1 part, promotor 2.5 parts, mould inhibitor 0.8 part, solvent 32 parts;
The preparation method of fluorinated acrylate preformed solution is as follows: by weight 33 butyl methacrylate, 18 parts of octadecyl acrylate and 1.9 parts of Potassium Persulphates are added the first reaction vessel, stir and obtain material A, again by 1.3 parts of sodium lauryl sulphate, 7 parts of polyoxyethylene glycol and 30 parts of deionized waters add the second reaction vessel, raise the second reaction vessel and contents temperature to 83 thereof DEG C after stirring and be full of nitrogen in the second reaction vessel, continue to add 15 parts of methacrylic acid PFO, 14 parts of lauryl acrylates, then after raising the second reaction vessel and contents temperature to 70 thereof DEG C, in the second reaction vessel, material A is added with the speed of 1.5 parts/min, be incubated 3h after adding and obtain material B, material B is cooled to 55 DEG C, then be 6.5 by the ammoniacal liquor adjust ph that massfraction is 20wt%, obtain fluorinated acrylate preformed solution,
The preparation method of modifying titanium dioxide is as follows: be that the nano titanium oxide of 30nm, 24 parts of silane coupling agent KH570 inputs are containing in the 3rd reaction vessel of 42 parts of toluene by weight by 11 parts of median sizes, after raising the 3rd reaction vessel and contents temperature to 82 thereof DEG C, stir 22.5h, centrifugation obtains material C again, with toluene wash material C 4 times, centrifugation obtains material D again, and material D dry 21.5h at 62 DEG C of temperature is obtained modifying titanium dioxide.
Embodiment 3
A kind of high-mechanical property waterproofing work machinery coating that the present invention proposes, its raw material comprises by weight: fluorinated acrylate preformed solution 39 parts, epoxy resin 26 parts, 14 parts, full methyl-etherified aminoresin, modifying titanium dioxide 15 parts, kaolin 14 parts, attapulgite 7.5 parts, silane coupling A-1721.7 parts, dispersion agent 1.2 parts, defoamer 1.3 parts, film coalescence aid 0.7 part, promotor 2.8 parts, mould inhibitor 0.6 part, solvent 34 parts;
The preparation method of fluorinated acrylate preformed solution is as follows: by weight 31 butyl methacrylate, 21 parts of octadecyl acrylate and 1.7 parts of Potassium Persulphates are added the first reaction vessel, stir and obtain material A, again by 1.5 parts of sodium lauryl sulphate, 5 parts of polyoxyethylene glycol and 32 parts of deionized waters add the second reaction vessel, raise the second reaction vessel and contents temperature to 81 thereof DEG C after stirring and be full of nitrogen in the second reaction vessel, continue to add 17 parts of methacrylic acid PFO, 12.5 part lauryl acrylate, then after raising the second reaction vessel and contents temperature to 72 thereof DEG C, in the second reaction vessel, material A is added with the speed of 1.2 parts/min, be incubated 4h after adding and obtain material B, material B is cooled to 51 DEG C, then be 6.1 by the ammoniacal liquor adjust ph that massfraction is 21wt%, obtain fluorinated acrylate preformed solution,
The preparation method of modifying titanium dioxide is as follows: be that the nano titanium oxide of 50nm, 22 parts of silane coupling agent KH570 inputs are containing in the 3rd reaction vessel of 45 parts of toluene by weight by 13 parts of median sizes, after raising the 3rd reaction vessel and contents temperature to 80 thereof DEG C, stir 24h, centrifugation obtains material C again, with toluene wash material C 3 times, centrifugation obtains material D again, and material D dry 20h at 65 DEG C of temperature is obtained modifying titanium dioxide.
Embodiment 4
A kind of high-mechanical property waterproofing work machinery coating that the present invention proposes, its raw material comprises by weight: fluorinated acrylate preformed solution 38 parts, epoxy resin 27 parts, 13 parts, full methyl-etherified aminoresin, modifying titanium dioxide 16 parts, kaolin 13 parts, attapulgite 8 parts, silane coupling A-1721.6 parts, dispersion agent 1.4 parts, defoamer 1.2 parts, film coalescence aid 0.8 part, promotor 2.6 parts, mould inhibitor 0.7 part, solvent 33 parts;
The preparation method of fluorinated acrylate preformed solution is as follows: by weight 32 butyl methacrylate, 19 parts of octadecyl acrylate and 1.8 parts of Potassium Persulphates are added the first reaction vessel, stir and obtain material A, again by 1.4 parts of sodium lauryl sulphate, 6 parts of polyoxyethylene glycol and 31 parts of deionized waters add the second reaction vessel, raise the second reaction vessel and contents temperature to 82 thereof DEG C after stirring and be full of nitrogen in the second reaction vessel, continue to add 16 parts of methacrylic acid PFO, 13 parts of lauryl acrylates, then after raising the second reaction vessel and contents temperature to 71 thereof DEG C, in the second reaction vessel, material A is added with the speed of 1.3 parts/min, be incubated 3.5h after adding and obtain material B, material B is cooled to 53 DEG C, then be 6.3 by the ammoniacal liquor adjust ph that massfraction is 20.5wt%, obtain fluorinated acrylate preformed solution,
The preparation method of modifying titanium dioxide is as follows: be that the nano titanium oxide of 20nm, 25 parts of silane coupling agent KH570 inputs are containing in the 3rd reaction vessel of 40 parts of toluene by weight by 10 parts of median sizes, after raising the 3rd reaction vessel and contents temperature to 83 thereof DEG C, stir 22h, centrifugation obtains material C again, with toluene wash material C 5 times, centrifugation obtains material D again, and material D dry 22h at 60 DEG C of temperature is obtained modifying titanium dioxide.
Carry out performance test to embodiment 1-4, choose commercially available engineering machinery coating as a control group, detected result is as follows:
Water contact angle uses contact angle instrument to measure the contact angle numerical value of water at coating surface, and water contact angle is larger, and the hydrophobic nature of coating is stronger, water resistance better.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.