News Details
Water-borne epoxy anticorrosive paint crosslinking agent
2017-3-23 10:56:53
Water-borne epoxy anticorrosive paint crosslinking agent,And the preparation of waterborne epoxy anticorrosive coatings and research
Epoxy resin has the advantages of excellent mechanical strength, cohesiveness, is widely used in plastics industry, coating industry, one of the thermosetting resin composite materials and other fields.
Which is used for coating in the field of epoxy resin is water-insoluble, more only soluble in acetone, ether, alcohol and other organic solvents, but as people's environmental protection requirement unceasing enhancement, the more the demand and application of waterborne epoxy coatings for more, but the wide application of waterborne epoxy coatings are still subject to the research and development progress of waterborne epoxy resin, in this paper, the preparation of waterborne epoxy emulsion and the performance of anticorrosive coating was studied and discussed.
Currently, the main preparation methods of waterborne epoxy resin is a mechanical method, on the contrary, crosslinking agent emulsification and chemical modification method of four. The chemical modification of waterborne epoxy resin emulsion, prepared by the small particle size, good storage stability, wide application.
As Rbosino and Woo will graft acrylic monomers onto epoxy molecular skeleton, was not easy to hydrolysis of waterborne epoxy resin. Yang Xunlan etc. by acrylic monomers and graft copolymerization reaction of epoxy resin, the water-based epoxy, got the good adhesion, flexibility, water resistance of coating.
Tension was prepared by chemical modification such as the stability of siloxane modified epoxy - styrene acrylic composite water dispersion, various monomer on the water dispersion was studied the influence of particle size. Wen-yan liu [5], such as use of organic silicon monomer, styrene and methyl acrylate monomer on the modification of epoxy resin, silicone modified epoxy resin was prepared by water medium.
Jiang Fujiang etc by methyl acrylate and vinyl triethoxy silane was carried out on the low molecular weight epoxy resin E - 44 modification, synthesis of organic silicone modified epoxy acrylic photosensitive prepolymer.
Zheng Yun with reactive siloxane as reactive diluent modified, such as VPI epoxy resin, to study the different reactive groups (epoxy, vinyl, or amino siloxane for VPI epoxy resin viscosity, storage stability, etc.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
High performance epoxy - silicone coating to polysiloxane and organic oxygen silane modified epoxy resin, the preparation of resin has good heat resistance, corrosion resistance; Prabu etc with hydroxyl-terminated polydimethylsiloxane and polyurethane as modifier, gamma ammonia propyl triethoxy silane as crosslinking agent, the preparation of the mechanical properties, excellent water resistance, high temperature resistance of the modified epoxy resin coating.
On the basis of above research, this paper USES the principle of free radical graft polymerization, with benzoyl peroxide as initiator, through solution polymerization, will be grafted acrylic resin in epoxy resin, the application of organic silicone modified at the same time. Preparation of waterborne epoxy emulsion has significant improvement in the storage stability, the preparation of waterborne epoxy coatings at the same time, the dosage of crosslinking agent and construction conditions are studied.
Experiment materials: bisphenol A type epoxy resin, industrial-grade; Methyl acrylic acid, chemical pure; Styrene, chemical pure; Butyl acrylate, chemical pure; Vinyl three (beta - methoxy) ethoxy silane, chemical pure; Propylene glycol monomethyl ether, chemical pure; N-butyl alcohol, chemical pure; Benzoyl peroxide (BPO), chemical pure; Additives, industrial grade; Rutile titanium white, industrial-grade; Mica powder, industrial-grade; Barium sulfate, industrial-grade; Crosslinking agent, homemade.
Main equipment and instrument: 500 ml flask, four electric mixer, reflux cooling tube, heating jacket, constant pressure hopper, etc
Modification principle. The synthesis of acrylic modified epoxy resin reaction is free radical polymerization mechanism. Epoxy resin is unsaturated double bond, but contains ether bond, its alpha H ortho carbon atoms and the H atoms on the tertiary carbon atom is relatively more lively, can be formed under the effect of the initiator free radicals, triggering grafting reaction.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Epoxy resin has the advantages of excellent mechanical strength, cohesiveness, is widely used in plastics industry, coating industry, one of the thermosetting resin composite materials and other fields.
Which is used for coating in the field of epoxy resin is water-insoluble, more only soluble in acetone, ether, alcohol and other organic solvents, but as people's environmental protection requirement unceasing enhancement, the more the demand and application of waterborne epoxy coatings for more, but the wide application of waterborne epoxy coatings are still subject to the research and development progress of waterborne epoxy resin, in this paper, the preparation of waterborne epoxy emulsion and the performance of anticorrosive coating was studied and discussed.
Currently, the main preparation methods of waterborne epoxy resin is a mechanical method, on the contrary, crosslinking agent emulsification and chemical modification method of four. The chemical modification of waterborne epoxy resin emulsion, prepared by the small particle size, good storage stability, wide application.
As Rbosino and Woo will graft acrylic monomers onto epoxy molecular skeleton, was not easy to hydrolysis of waterborne epoxy resin. Yang Xunlan etc. by acrylic monomers and graft copolymerization reaction of epoxy resin, the water-based epoxy, got the good adhesion, flexibility, water resistance of coating.
Tension was prepared by chemical modification such as the stability of siloxane modified epoxy - styrene acrylic composite water dispersion, various monomer on the water dispersion was studied the influence of particle size. Wen-yan liu [5], such as use of organic silicon monomer, styrene and methyl acrylate monomer on the modification of epoxy resin, silicone modified epoxy resin was prepared by water medium.
Jiang Fujiang etc by methyl acrylate and vinyl triethoxy silane was carried out on the low molecular weight epoxy resin E - 44 modification, synthesis of organic silicone modified epoxy acrylic photosensitive prepolymer.
Zheng Yun with reactive siloxane as reactive diluent modified, such as VPI epoxy resin, to study the different reactive groups (epoxy, vinyl, or amino siloxane for VPI epoxy resin viscosity, storage stability, etc.
Chinese name: Diethyl toluene diamine(DETDA)
Chinese alias: aryl, aryl diethyl - aryl - methyl-p-phenylenediamine
English name: Benzenediamine, ar, ar-diethyl-ar-methyl-English aliases:Diethyltoluenediamine; ar, ar-Diethyl-ar-methylbenzenediamine;Diethylmethylbenzenediamine;
CAS No. :68479-98-1
EINECS No. :270 -877-4
Molecular formula: C11H18N2
Molecular Weight: 178.28
Boiling point: 310 ℃
Refractive index: 1.581
Flash Point: > 140 ℃
Inchi: InChI = 1/C11H18N2/c1-4-8-6-7 (3) 10 (12) 11 (13) 9 (8) 5-2/h6H ,4-5,12-13H2 ,1-3H3 density : 1.022
Risk Codes: R10; R35
RIDADR: UN 3082
Safety instructions: S2; S26; S39; S61
Packing Group: III
Hazard Class: 6.1
High performance epoxy - silicone coating to polysiloxane and organic oxygen silane modified epoxy resin, the preparation of resin has good heat resistance, corrosion resistance; Prabu etc with hydroxyl-terminated polydimethylsiloxane and polyurethane as modifier, gamma ammonia propyl triethoxy silane as crosslinking agent, the preparation of the mechanical properties, excellent water resistance, high temperature resistance of the modified epoxy resin coating.
On the basis of above research, this paper USES the principle of free radical graft polymerization, with benzoyl peroxide as initiator, through solution polymerization, will be grafted acrylic resin in epoxy resin, the application of organic silicone modified at the same time. Preparation of waterborne epoxy emulsion has significant improvement in the storage stability, the preparation of waterborne epoxy coatings at the same time, the dosage of crosslinking agent and construction conditions are studied.
Experiment materials: bisphenol A type epoxy resin, industrial-grade; Methyl acrylic acid, chemical pure; Styrene, chemical pure; Butyl acrylate, chemical pure; Vinyl three (beta - methoxy) ethoxy silane, chemical pure; Propylene glycol monomethyl ether, chemical pure; N-butyl alcohol, chemical pure; Benzoyl peroxide (BPO), chemical pure; Additives, industrial grade; Rutile titanium white, industrial-grade; Mica powder, industrial-grade; Barium sulfate, industrial-grade; Crosslinking agent, homemade.
Main equipment and instrument: 500 ml flask, four electric mixer, reflux cooling tube, heating jacket, constant pressure hopper, etc
Modification principle. The synthesis of acrylic modified epoxy resin reaction is free radical polymerization mechanism. Epoxy resin is unsaturated double bond, but contains ether bond, its alpha H ortho carbon atoms and the H atoms on the tertiary carbon atom is relatively more lively, can be formed under the effect of the initiator free radicals, triggering grafting reaction.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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