News Details
Pigment printing ketohydrazine crosslinking agent
2017-5-11 17:54:40
Pigment printing ketohydrazine crosslinking agent. Diacetone acrylamide as a kind of vinyl monomer, copolymerization with other vinyl monomers to attract ketone carbonyl in the molecular structure of polymer, chemistry of the use of ketone carbonyl and lively, can react with amino, improve emulsion membrane after crosslinking density.
Ketones hydrazine crosslinking reaction using carbonyl reaction with hydrazine synthesis hydrazone, through reaction cross-linking in the polymer, the superiority of this kind of crosslinking is a one-component emulsion preparation, and is in use, the film after drying dehydration occurs when the crosslinking reaction.
This method has been valued at home and abroad in recent years, and has been studied and exploited by more and more people. Experiments to diacetone acrylamide as functional monomers, containing ketone carbonyl poly acrylate emulsion was synthesized, in the case of pH neutral join adipate hydrazide solution, preparation of the self - crosslinking pigment printing adhesive, examines the ketone hydrazine crosslinking effect on the properties of emulsion and fabric printing.
The main raw material of the experiment. Methyl methacrylate (MMA), methyl acrylic (MAA), acrylate (EA), acrylate (BA) : industrial grade; Methyl methacrylate (GMA) : chemical purity; Sodium lauryl sulfate (SDS) : analytical pure; Fatty alcohol modified polyethylene glycol (AFX3070) : analytical pure; Ammonium bicarbonate, ammonium persulfate (APS) : analytical purity; Diacetone acrylamide (DAAM) and adipazide (ADH) : analytical pure; Deionized water.
The main instrument. Laser particle size analyzer: ZSNanoS type Fourier transform infrared spectrometer: Vector33.
Sample preparation. To a certain proportion of distilled water, emulsifier and SDS AFX3070, methyl glycidyl ester of acrylic (GMA) and methyl methacrylate (MMA), methylacrylic acid (MAA), ethyl acrylate (EA), butyl acrylate (BA) monomer and a certain amount of initiator, fully mixing, O/W emulsion.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
In a blender, condenser pipe, thermometer and dropping funnel of 500 ml flask, four in deionized water and emulsifier and SDS AFX3070, start the agitator, up to 80 ℃, at the same time to join the mass fraction of 5% APS solution and about a third of monomer mixture, after waiting for solution in blue, began to uniform mixture, add the remaining monomer in aqueous solution to join DAAM, about 2 ~ 3 h and finished. Up to 85 ℃, adding a certain amount of initiator, heat preservation 2 h.
Cool to 40 ℃, with ammonia to 7 of the pH value of the emulsion, after joining the ADH solution and discharging, polyacrylate emulsion. The SDS usage was 3%, the AFX3070 was 1.5%, and the APS usage was 0.5%. Note: the amount of each reagent is the mass fraction of the polymer.
The infrared spectra of the emulsion coating were compared and analyzed in order to investigate the effective reaction of ketohydrazine in curing process.
Comparison found: 1, 3500 cm - 1 - OH vibration absorption peak near is strong, the absorption peak disappear here in the no. 2, this is due to - OH and molecules - COOH, epoxy groups such as the crosslinking reaction; In the first and second of 1645cm-1? The c-h expansion vibration absorption peak disappears, indicating that the polymerization monomer is effectively participating in the polymerization reaction. At the same time, there is a new retractable vibration absorption peak at 1657cm-1, which is the retractable vibration absorption peak of CN, and C? The presence of N confirmed the formation of the hydrazone in the polymer's ketocarbonyl group and hydrazid.
The effect of DAAM dosage on the performance of emulsion and printed products. The effect of the addition of DAAM on emulsion appearance and polymerization stability and film performance was investigated by the quality of DAAM and ADH.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Ketones hydrazine crosslinking reaction using carbonyl reaction with hydrazine synthesis hydrazone, through reaction cross-linking in the polymer, the superiority of this kind of crosslinking is a one-component emulsion preparation, and is in use, the film after drying dehydration occurs when the crosslinking reaction.
This method has been valued at home and abroad in recent years, and has been studied and exploited by more and more people. Experiments to diacetone acrylamide as functional monomers, containing ketone carbonyl poly acrylate emulsion was synthesized, in the case of pH neutral join adipate hydrazide solution, preparation of the self - crosslinking pigment printing adhesive, examines the ketone hydrazine crosslinking effect on the properties of emulsion and fabric printing.
The main raw material of the experiment. Methyl methacrylate (MMA), methyl acrylic (MAA), acrylate (EA), acrylate (BA) : industrial grade; Methyl methacrylate (GMA) : chemical purity; Sodium lauryl sulfate (SDS) : analytical pure; Fatty alcohol modified polyethylene glycol (AFX3070) : analytical pure; Ammonium bicarbonate, ammonium persulfate (APS) : analytical purity; Diacetone acrylamide (DAAM) and adipazide (ADH) : analytical pure; Deionized water.
The main instrument. Laser particle size analyzer: ZSNanoS type Fourier transform infrared spectrometer: Vector33.
Sample preparation. To a certain proportion of distilled water, emulsifier and SDS AFX3070, methyl glycidyl ester of acrylic (GMA) and methyl methacrylate (MMA), methylacrylic acid (MAA), ethyl acrylate (EA), butyl acrylate (BA) monomer and a certain amount of initiator, fully mixing, O/W emulsion.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packing： net weight 200KG/ galvanized iron drum (a small cabinet pallet loaded 16 tons), 1000KG/IB barrels (a small cabinet loaded 18 tons or 23 tons of ISOTANK).
In a blender, condenser pipe, thermometer and dropping funnel of 500 ml flask, four in deionized water and emulsifier and SDS AFX3070, start the agitator, up to 80 ℃, at the same time to join the mass fraction of 5% APS solution and about a third of monomer mixture, after waiting for solution in blue, began to uniform mixture, add the remaining monomer in aqueous solution to join DAAM, about 2 ~ 3 h and finished. Up to 85 ℃, adding a certain amount of initiator, heat preservation 2 h.
Cool to 40 ℃, with ammonia to 7 of the pH value of the emulsion, after joining the ADH solution and discharging, polyacrylate emulsion. The SDS usage was 3%, the AFX3070 was 1.5%, and the APS usage was 0.5%. Note: the amount of each reagent is the mass fraction of the polymer.
The infrared spectra of the emulsion coating were compared and analyzed in order to investigate the effective reaction of ketohydrazine in curing process.
Comparison found: 1, 3500 cm - 1 - OH vibration absorption peak near is strong, the absorption peak disappear here in the no. 2, this is due to - OH and molecules - COOH, epoxy groups such as the crosslinking reaction; In the first and second of 1645cm-1? The c-h expansion vibration absorption peak disappears, indicating that the polymerization monomer is effectively participating in the polymerization reaction. At the same time, there is a new retractable vibration absorption peak at 1657cm-1, which is the retractable vibration absorption peak of CN, and C? The presence of N confirmed the formation of the hydrazone in the polymer's ketocarbonyl group and hydrazid.
The effect of DAAM dosage on the performance of emulsion and printed products. The effect of the addition of DAAM on emulsion appearance and polymerization stability and film performance was investigated by the quality of DAAM and ADH.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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