CN105062304A - High-flame-retardant corrosion-resisting powder coating - Google Patents
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Abstract
The invention discloses a high-flame-retardant corrosion-resisting powder coating which comprises the raw materials in parts by weight: 50-65 parts of epoxy resin, 15-30 parts of unsaturated polyester resin, 10-20 parts of thermoplastic styrene-butadiene rubber, 5-20 parts of nano zirconium oxide, 5-20 parts of nano-montmorillonite, 2-10 parts of iron oxide red, 3-10 parts of talcum powder, 3-10 parts of graphene, 2-10 parts of nano titanium dioxide, 3-10 parts of diphenyl silanediol, 3-8 parts of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 2-5 parts of undecendioic acid, 3-10 parts of 3,3',4,4'-tetraaminobiphenyl, 0.4-1.5 parts of beta-hydroxyl alkyl amide, 0.1-0.5 part of benzoyl peroxide and 1-4 parts of auxiliaries. The high-flame-retardant corrosion-resisting powder coating disclosed by the invention is high in flame retardance and good in corrosion resistance.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of high flame retardant corrosion resistant powder coating.
Background technology
Powder coating is that one does not contain solvent, and forms the new coating of film after carrying out construction application with powder morphology.Compared with traditional solvent based coating, the discharge of powder coating organic solvent volatile matter (VOC) when solidifying is almost nil, avoids the pollution to environment; Meanwhile, it is high that powder coating has utilization ratio, and coating property is good and be convenient to realize the advantages such as automation paint, obtains in recent years and develops faster.
Although the kind of powder coating is varied at present, along with the development of society, the performance of people to coating is had higher requirement, its performance of existing powder coating can not meet the requirement of use, and such as, erosion resistance is not good enough, flame retardant properties is bad, needs to carry out modification.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of high flame retardant corrosion resistant powder coating, its flame retardant properties is high, good corrosion resistance, can be used for the application on the surfaces such as kitchen kitchenware, instrument shell, display rack, electromechanical equipment, automobile component, and good combination property, long service life.
A kind of high flame retardant corrosion resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 50-65 part, unsaturated polyester resin 15-30 part, thermoplastic styrene butadiene rubber 10-20 part, nano zircite 5-20 part, nano imvite 5-20 part, red iron oxide 2-10 part, talcum powder 3-10 part, Graphene 3-10 part, nano titanium oxide 2-10 part, Diphenylsilanediol 3-10 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3-8 part, undecene diacid 2-5 part, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 3-10 part, beta-hydroxy alkylamide 0.4-1.5 part, benzoyl peroxide 0.1-0.5 part, auxiliary agent 1-4 part.
Preferably, in its raw material, the weight ratio of nano zircite, nano imvite, red iron oxide, talcum powder, Graphene, nano titanium oxide is 10-18:10-17:5-9:6-10:5-9:4-10.
Preferably, in its raw material, its raw material comprises following component by weight: epoxy resin 55-62 part, unsaturated polyester resin 20-26 part, thermoplastic styrene butadiene rubber 12-18 part, nano zircite 12-16 part, nano imvite 12-15 part, red iron oxide 6-8 part, talcum powder 8-10 part, Graphene 7-8 part, nano titanium oxide 6-9 part, Diphenylsilanediol 6-8 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 5-7 part, undecene diacid 3-4.5 part, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 7-9 part, beta-hydroxy alkylamide 1-1.5 part, benzoyl peroxide 0.2-0.35 part, auxiliary agent 2-3.4 part.
Preferably, its raw material comprises following component by weight: epoxy resin 60 parts, unsaturated polyester resin 24 parts, thermoplastic styrene butadiene rubber 15 parts, nano zircite 14 parts, nano imvite 13 parts, red iron oxide 7 parts, talcum powder 9 parts, Graphene 7.6 parts, nano titanium oxide 8 parts, Diphenylsilanediol 6.4 parts, 9,10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 6 parts, undecene diacid 4.2 parts, 3,3 ', 4,4 '-tetra-amino-biphenyl 8.2 parts, beta-hydroxy alkylamide 1.3 parts, benzoyl peroxide 0.3 part, auxiliary agent 2.9 parts.
Preferably, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: add in reaction vessel by 10-25 part dinaphthol phosphoric acid ester, 5-20 part epoxy chloropropane and 2-5 part Tetrabutyl amonium bromide by weight, be warming up to 80-100 DEG C of reaction 2-5h, then 15-30 part toluene is added and 5-15 part massfraction is the aqueous sodium hydroxide solution of 5-15%, at 65-75 DEG C, react 1-3h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying; In the preparation process of epoxy resin, have selected dinaphthol phosphoric acid ester and epoxy chloropropane is reactant, both are combined as a whole, add in system because molecule contains naphthalene nucleus, give the thermotolerance of coating excellence, due to nano zircite, nano imvite, Graphene, Diphenylsilanediol, 9 in the existence of phosphoric and system, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound, 3,3 ', 4, the cooperation of 4 '-tetra-amino-biphenyl defines flame-retardant system more than, imparts the flame retardant properties of coating excellence.
Preferably, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: add in reaction vessel by 20 parts of dinaphthol phosphoric acid ester, 13 parts of epoxy chloropropane and 4.2 parts of Tetrabutyl amonium bromides by weight, be warming up to 90 DEG C of reaction 3.6h, then 22 parts of toluene are added and 12 parts of massfractions are the aqueous sodium hydroxide solution of 10%, at 70 DEG C, react 2.1h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Preferably, the median size of described nano zircite is 5-20nm; The median size of described nano imvite is 10-30nm; The median size of described nano titanium oxide is 10-30nm.
Preferably, described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate is 4-10:2-5:2-5:3-8.
The corrosion resistant powder of high flame retardant described in the present invention coating can powder coating preparation technology conveniently be prepared from.
In the present invention, have selected epoxy resin is main filmogen, and cooperation with the addition of unsaturated polyester, gives erosion resistance and the water tolerance of film excellence, thermoplastic styrene butadiene rubber joins in system, can form cross-linked network under the effect of benzoyl peroxide, increases the cross-linking density of coating, further improve erosion resistance and the water tolerance of coating while improving coating toughness, the cooperation of nano zircite, nano imvite, Graphene joins in system, can play heat insulation and effect that is that prevent thermooxidizing from decomposing, gives thermotolerance and the flame retardant resistance of film excellence, containing hydroxyl, phenyl and silicon in Diphenylsilanediol molecule, the solidification tool of hydroxyl wherein to system has certain effect, the existence of phenyl improves the rigidity of system, give physical strength and the thermotolerance of film excellence, existence due to silicon reduces the internal stress of system, adds toughness and the high thermal resistance of film, 9, 10-dihydro-9-oxy is mixed the rigid structure containing aromatic nucleus in-10-phospho hetero phenanthrene-10-oxide molecule, join energy and undecene diacid in system, 4, 4 '-tetra-amino-biphenyl interacts, the performance of three is combined as a whole, obtain the structure containing imidazole group, to join in system good dispersity in system, on the one hand, due to the existence of rigid chain segment, add the reactive force between molecule, increase the density of molecular chain, inhibit the motion of molecular chain under high temperature action, improve the second-order transition temperature of system, give the thermotolerance of film excellence, on the one hand, because of the existence of imidazole group, with beta-hydroxy alkylamide, benzoyl peroxide coordinates, improve the reactive behavior of system, system is made to solidify thoroughly, on the other hand with the nano zircite in system, nano imvite, Graphene and Diphenylsilanediol coordinate, define flame-retardant system more than, protective layer is formed at matrix surface, play heat insulation, oxygen barrier, press down the effect of cigarette, prevent inner further decomposition, give the flame retardant resistance of coating excellence.
Embodiment
In a particular embodiment, a kind of high flame retardant corrosion resistant powder coating that the present invention proposes, in its raw material, the weight part of epoxy resin can be 50,52,53,54,56,56.3,58,59,59.3,61,62,63,63.4,64,64.5,65 parts; The weight part of unsaturated polyester resin can be 15,16,18,19,19.3,21,23,23.4,24,24.6,25,28,29,29.3,30 parts; The weight part of thermoplastic styrene butadiene rubber can be 10,12,13,15,16,16.3,18,19,19.4,20 parts; The weight part of nano zircite can be 5,6,7,8,8.5,9,9.3,10,10.6,11,11.2,13,13.4,14,14.6,15,16,18,18.6,19,19.4,20 parts; The weight part of nano imvite can be 5,6,7,8,8.6,9,9.3,10,10.6,12,13,15,16,16.3,17,18,18.6,19,19.4,20 parts; The weight part of red iron oxide can be 2,3,4,5,5.6,6,6.3,7,7.6,8,8.5,9,9.4,10 parts; Talcous weight part can be 3,4,5,5.3,6,6.3,7,8,8.6,9,9.4,10 parts; The weight part of Graphene can be 3,4,5,5.3,6,6.3,7,7.5,8,8.6,9,9.4,10 parts; The weight part of nano titanium oxide can be 2,3,4,5,5.6,6,6.3,7,7.4,8,8.6,9,9.4,10 parts; The weight part of Diphenylsilanediol can be 3,4,5,5.3,6,6.3,7,7.5,8,8.6,9,9.4,10 parts; The weight part of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide can be 3,4,5,5.3,6,6.3,7,7.4,8 parts; The weight part of undecene diacid can be 2,2.3,2.8,3,3.4,3.8,4,4.2,4.7,5 parts; 3,3 ', 4, the weight part of 4 '-tetra-amino-biphenyl can be 3,4,4.5,5,5.3,6,6.7,7,7.4,8,8.5,9,9.3,10 parts; The weight part of beta-hydroxy alkylamide can be 0.4,0.5,0.6,0.68,0.8,0.9,1,1.2,1.26,1.3,1.35,1.4,1.46,1.5 part; The weight part of benzoyl peroxide can be 0.1,0.12,0.2,0.26,0.3,0.34,0.4,0.46,0.5 part; The weight part of auxiliary agent can be 1,1.2,1.8,2,2.3,2.8,3,3.4,3.7,4 part.
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of high flame retardant corrosion resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 60 parts, unsaturated polyester resin 24 parts, thermoplastic styrene butadiene rubber 15 parts, nano zircite 14 parts, nano imvite 13 parts, red iron oxide 7 parts, talcum powder 9 parts, Graphene 7.6 parts, nano titanium oxide 8 parts, Diphenylsilanediol 6.4 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 6 parts, undecene diacid 4.2 parts, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 8.2 parts, beta-hydroxy alkylamide 1.3 parts, benzoyl peroxide 0.3 part, auxiliary agent 2.9 parts,
Wherein, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: add in reaction vessel by 20 parts of dinaphthol phosphoric acid ester, 13 parts of epoxy chloropropane and 4.2 parts of Tetrabutyl amonium bromides by weight, be warming up to 90 DEG C of reaction 3.6h, then 22 parts of toluene are added and 12 parts of massfractions are the aqueous sodium hydroxide solution of 10%, at 70 DEG C, react 2.1h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Embodiment 2
A kind of high flame retardant corrosion resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 55 parts, unsaturated polyester resin 26 parts, thermoplastic styrene butadiene rubber 12 parts, nano zircite 16 parts, nano imvite 12 parts, red iron oxide 8 parts, talcum powder 8 parts, Graphene 8 parts, nano titanium oxide 6 parts, Diphenylsilanediol 8 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 5 parts, undecene diacid 3 parts, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 9 parts, beta-hydroxy alkylamide 1 part, benzoyl peroxide 0.35 part, auxiliary agent 2 parts,
Wherein, the median size of described nano zircite is 5nm; The median size of described nano imvite is 30nm; The median size of described nano titanium oxide is 10nm; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: add in reaction vessel by 10 parts of dinaphthol phosphoric acid ester, 20 parts of epoxy chloropropane and 2 parts of Tetrabutyl amonium bromides by weight, be warming up to 100 DEG C of reaction 2h, then 30 parts of toluene are added and 5 parts of massfractions are the aqueous sodium hydroxide solution of 15%, at 65 DEG C, react 3h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Embodiment 3
A kind of high flame retardant corrosion resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 62 parts, unsaturated polyester resin 20 parts, thermoplastic styrene butadiene rubber 18 parts, nano zircite 12 parts, nano imvite 15 parts, red iron oxide 6 parts, talcum powder 10 parts, Graphene 7 parts, nano titanium oxide 9 parts, Diphenylsilanediol 6 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 7 parts, undecene diacid 4.5 parts, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 7 parts, beta-hydroxy alkylamide 1.5 parts, benzoyl peroxide 0.2 part, auxiliary agent 3.4 parts,
Wherein, the median size of described nano zircite is 20nm; The median size of described nano imvite is 10nm; The median size of described nano titanium oxide is 30nm; Described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate is 7:3:4:5; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: add in reaction vessel by 25 parts of dinaphthol phosphoric acid ester, 5 parts of epoxy chloropropane and 5 parts of Tetrabutyl amonium bromides by weight, be warming up to 80 DEG C of reaction 5h, then 1 part of toluene is added and 15 parts of massfractions are the aqueous sodium hydroxide solution of 5%, at 75 DEG C, react 1h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Embodiment 4
A kind of high flame retardant corrosion resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 50 parts, unsaturated polyester resin 30 parts, thermoplastic styrene butadiene rubber 10 parts, nano zircite 20 parts, nano imvite 5 parts, red iron oxide 10 parts, talcum powder 3 parts, Graphene 10 parts, nano titanium oxide 2 parts, Diphenylsilanediol 10 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3 parts, undecene diacid 5 parts, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 3 parts, beta-hydroxy alkylamide 1.5 parts, benzoyl peroxide 0.1 part, auxiliary agent 4 parts,
Wherein, the median size of described nano zircite is 15nm; The median size of described nano imvite is 22nm; The median size of described nano titanium oxide is 25nm; Described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate is 10:2:5:3; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: add in reaction vessel by 14 parts of dinaphthol phosphoric acid ester, 17 parts of epoxy chloropropane and 3.2 parts of Tetrabutyl amonium bromides by weight, be warming up to 93 DEG C of reaction 2.4h, then 26 parts of toluene are added and 10 parts of massfractions are the aqueous sodium hydroxide solution of 9%, at 69 DEG C, react 2.4h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
Embodiment 5
A kind of high flame retardant corrosion resistant powder coating that the present invention proposes, its raw material comprises following component by weight: epoxy resin 65 parts, unsaturated polyester resin 15 parts, thermoplastic styrene butadiene rubber 20 parts, nano zircite 5 parts, nano imvite 20 parts, red iron oxide 2 parts, talcum powder 10 parts, Graphene 3 parts, nano titanium oxide 10 parts, Diphenylsilanediol 3 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 8 parts, undecene diacid 2 parts, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 10 parts, beta-hydroxy alkylamide 0.4 part, benzoyl peroxide 0.5 part, auxiliary agent 1 part,
Wherein, described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate is 4:5:2:8; Described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: add in reaction vessel by 22 parts of dinaphthol phosphoric acid ester, 9 parts of epoxy chloropropane and 4.7 parts of Tetrabutyl amonium bromides by weight, be warming up to 86 DEG C of reaction 4.6h, then 19 parts of toluene are added and 13 parts of massfractions are the aqueous sodium hydroxide solution of 10%, at 73 DEG C, react 1.6h, after reaction terminates, obtain described modified epoxy through washing, separation, distillation, drying.
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.
Claims (8)
1. a high flame retardant corrosion resistant powder coating, it is characterized in that, its raw material comprises following component by weight: epoxy resin 50-65 part, unsaturated polyester resin 15-30 part, thermoplastic styrene butadiene rubber 10-20 part, nano zircite 5-20 part, nano imvite 5-20 part, red iron oxide 2-10 part, talcum powder 3-10 part, Graphene 3-10 part, nano titanium oxide 2-10 part, Diphenylsilanediol 3-10 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 3-8 part, undecene diacid 2-5 part, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 3-10 part, beta-hydroxy alkylamide 0.4-1.5 part, benzoyl peroxide 0.1-0.5 part, auxiliary agent 1-4 part.
2. high flame retardant corrosion resistant powder coating according to claim 1, it is characterized in that, in its raw material, the weight ratio of nano zircite, nano imvite, red iron oxide, talcum powder, Graphene, nano titanium oxide is 10-18:10-17:5-9:6-10:5-9:4-10.
3. high flame retardant corrosion resistant powder coating according to claim 1 or 2, it is characterized in that, its raw material comprises following component by weight: epoxy resin 55-62 part, unsaturated polyester resin 20-26 part, thermoplastic styrene butadiene rubber 12-18 part, nano zircite 12-16 part, nano imvite 12-15 part, red iron oxide 6-8 part, talcum powder 8-10 part, Graphene 7-8 part, nano titanium oxide 6-9 part, Diphenylsilanediol 6-8 part, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 5-7 part, undecene diacid 3-4.5 part, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 7-9 part, beta-hydroxy alkylamide 1-1.5 part, benzoyl peroxide 0.2-0.35 part, auxiliary agent 2-3.4 part.
4. high flame retardant corrosion resistant powder coating according to any one of claim 1-3, it is characterized in that, its raw material comprises following component by weight: epoxy resin 60 parts, unsaturated polyester resin 24 parts, thermoplastic styrene butadiene rubber 15 parts, nano zircite 14 parts, nano imvite 13 parts, red iron oxide 7 parts, talcum powder 9 parts, Graphene 7.6 parts, nano titanium oxide 8 parts, Diphenylsilanediol 6.4 parts, 9, 10-dihydro-9-oxy is mixed-10-phospho hetero phenanthrene-10-oxide compound 6 parts, undecene diacid 4.2 parts, 3, 3 ', 4, 4 '-tetra-amino-biphenyl 8.2 parts, beta-hydroxy alkylamide 1.3 parts, benzoyl peroxide 0.3 part, auxiliary agent 2.9 parts.
5. high flame retardant corrosion resistant powder coating according to any one of claim 1-4, it is characterized in that, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 10-25 part dinaphthol phosphoric acid ester, 5-20 part epoxy chloropropane and 2-5 part Tetrabutyl amonium bromide add in reaction vessel, be warming up to 80-100 DEG C of reaction 2-5h, then 15-30 part toluene is added and 5-15 part massfraction is the aqueous sodium hydroxide solution of 5-15%, 1-3h is reacted at 65-75 DEG C, through washing after reaction terminates, be separated, distillation, drying obtains described modified epoxy.
6. high flame retardant corrosion resistant powder coating according to any one of claim 1-5, it is characterized in that, described epoxy resin is modified epoxy, described modified epoxy is prepared according to following technique: by weight by 20 parts of dinaphthol phosphoric acid ester, 13 parts of epoxy chloropropane and 4.2 parts of Tetrabutyl amonium bromides add in reaction vessel, be warming up to 90 DEG C of reaction 3.6h, then 22 parts of toluene are added and 12 parts of massfractions are the aqueous sodium hydroxide solution of 10%, 2.1h is reacted at 70 DEG C, through washing after reaction terminates, be separated, distillation, drying obtains described modified epoxy.
7. high flame retardant corrosion resistant powder coating according to any one of claim 1-6, is characterized in that, the median size of described nano zircite is 5-20nm; The median size of described nano imvite is 10-30nm; The median size of described nano titanium oxide is 10-30nm.
8. high flame retardant corrosion resistant powder coating according to any one of claim 1-7, it is characterized in that, described auxiliary agent is the combination of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate, and the weight ratio of zinc naphthenate, acrylate flow agent, silicone antifoam agent, zinc dialkyl dithiophosphate is 4-10:2-5:2-5:3-8.
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Application publication date: 20151118 |