News Details
Water based polyurethane transfer paint crosslinking agent
2017-6-6 17:34:25
Water based polyurethane transfer paint crosslinking agent
Experiment materials: polyester glycol, polycarbonate glycol, polyethylene tetrahydrofuran ether glycol, high temperature resistant polyester glycol (M = 2000 homemade), toluene diisocyanate (TDI), different fluorine ketone diisocyanate (IPDI), HDI, H12MDI, DMPA, 1, 4 butanediol, diethylene glycol, TMP, acetone, T9, triethylamine, ethylenediamine, fluorine ketone diamine, inorganic silicon modified resin, flow ping agent, defoaming agent, wetting agent, etc.
Laboratory instruments and analytical equipment, reagents. Three mouth flask, condenser tube, thermometer, power mixer, distilling bottle, distillation head, circulating water vacuum pump, beaker, etc. Electric heating and thermostatic blast drying box, analytical balance, 50% ethanol solution etc.
Resin synthesis: in a blender, condenser pipe, the three of the thermometer in the flask to join quantitative polyester glycol, polycarbonate glycol, polyethylene tetrahydrofuran ether glycol, high temperature resistant polyester glycol, and a mixture of arbitrary two 1 hour, 120 ℃, dehydration, cooling into quantitative isocyanate and TMP, 90 ℃ heat for 2 hours. Cool to join DMPA, each small molecule alcohol, a small amount of acetone, 80 ℃ heat preservation for 1 hour. Cool to join the T9, acetone, NMP, 60 ℃ heat for 2 hours, measuring the - NCO content reach the specified value, cooling, and amine neutralization, water strong stirring, and then use different fluoride, ketone diamine or ethylene diamine extender chain, add inorganic silicon modified resin (homemade), heat removal solvent, silicone modified waterborne polyurethane resin.
NCO content determination. This experiment test with n-butyl amine method -- the content of NCO measurement steps are: accurate weighing about 3 grams of sample in a clean in the conical flask, add 20 ml anhydrous toluene, to dissolve the sample, use pipette to join 10 ml 2 n-butyl amine - toluene solution, shaking the bottle inside the liquid mixing, room temperature placed 20-30 min, add 40-50 ml isopropyl alcohol or ethanol, add a few drops of bromocresol green as indicator, with 0.5 mol/L HCl standard solution titration, change from blue to yellow when the solution to the finish line, and the blank test.
The formula is: w-nco = (v0-v1) * C * 42/1000m times 100%
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).
Type:
V0, V1 - - blank titration and sample titration of the volume of the standard solution of hydrochloric acid, ml
C minus the concentration of the aqueous solution, moles per liter
M -- -sample size, g
42 minus -- minus the molar mass of the NCO group, g over moles.
1.4.2 coating preparation
The emulsion into the teflon plate made of box (6 cm * 6 cm * 1 cm) placed within 60 ℃ electric drum wind drying oven, take out after 12 hours, 1 hour at room temperature to cool naturally. ,
1.4.3 resistance to high temperature test
(1) take the above preparation of coating (2 cm * 2 cm) 2 block, overlapping shape into the oven, pressure above 1 kg weight, 120 ℃ for 30 min, take place with natural cooling at room temperature, observe whether the adhesion.
(2) the preparation of products with silver cardboard, cutting into 10 cm by 10 cm square, stack back down on 5 kg weight on keep within 70 ℃ oven for 12 hours, take out, see if stick together, or the coating will be lost.
(3) apply resin coating to vacuum coated paper, dry, 8cm by 20cm, jinan languang heat seal test.
Dissection test. Apply the coating to the PET membrane, dry, use 3M tape, and test the stripping.
The effect of the type of diethylene glycol on product performance. Actual test using different polyester glycol (ether) and on the ratio of the number of adjustment, found in polycarbonate by alcohol and high temperature resistant polyester glycol 6-4 ratio of reaction resin was prepared by temperature tolerance and stripping the closest requirements, other single dibasic alcohol to make product temperature resistance and easy peeling performance cannot achieve unity, some difficult stripping, some temperature resistance is poor.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Experiment materials: polyester glycol, polycarbonate glycol, polyethylene tetrahydrofuran ether glycol, high temperature resistant polyester glycol (M = 2000 homemade), toluene diisocyanate (TDI), different fluorine ketone diisocyanate (IPDI), HDI, H12MDI, DMPA, 1, 4 butanediol, diethylene glycol, TMP, acetone, T9, triethylamine, ethylenediamine, fluorine ketone diamine, inorganic silicon modified resin, flow ping agent, defoaming agent, wetting agent, etc.
Laboratory instruments and analytical equipment, reagents. Three mouth flask, condenser tube, thermometer, power mixer, distilling bottle, distillation head, circulating water vacuum pump, beaker, etc. Electric heating and thermostatic blast drying box, analytical balance, 50% ethanol solution etc.
Resin synthesis: in a blender, condenser pipe, the three of the thermometer in the flask to join quantitative polyester glycol, polycarbonate glycol, polyethylene tetrahydrofuran ether glycol, high temperature resistant polyester glycol, and a mixture of arbitrary two 1 hour, 120 ℃, dehydration, cooling into quantitative isocyanate and TMP, 90 ℃ heat for 2 hours. Cool to join DMPA, each small molecule alcohol, a small amount of acetone, 80 ℃ heat preservation for 1 hour. Cool to join the T9, acetone, NMP, 60 ℃ heat for 2 hours, measuring the - NCO content reach the specified value, cooling, and amine neutralization, water strong stirring, and then use different fluoride, ketone diamine or ethylene diamine extender chain, add inorganic silicon modified resin (homemade), heat removal solvent, silicone modified waterborne polyurethane resin.
NCO content determination. This experiment test with n-butyl amine method -- the content of NCO measurement steps are: accurate weighing about 3 grams of sample in a clean in the conical flask, add 20 ml anhydrous toluene, to dissolve the sample, use pipette to join 10 ml 2 n-butyl amine - toluene solution, shaking the bottle inside the liquid mixing, room temperature placed 20-30 min, add 40-50 ml isopropyl alcohol or ethanol, add a few drops of bromocresol green as indicator, with 0.5 mol/L HCl standard solution titration, change from blue to yellow when the solution to the finish line, and the blank test.
The formula is: w-nco = (v0-v1) * C * 42/1000m times 100%
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).
Type:
V0, V1 - - blank titration and sample titration of the volume of the standard solution of hydrochloric acid, ml
C minus the concentration of the aqueous solution, moles per liter
M -- -sample size, g
42 minus -- minus the molar mass of the NCO group, g over moles.
1.4.2 coating preparation
The emulsion into the teflon plate made of box (6 cm * 6 cm * 1 cm) placed within 60 ℃ electric drum wind drying oven, take out after 12 hours, 1 hour at room temperature to cool naturally. ,
1.4.3 resistance to high temperature test
(1) take the above preparation of coating (2 cm * 2 cm) 2 block, overlapping shape into the oven, pressure above 1 kg weight, 120 ℃ for 30 min, take place with natural cooling at room temperature, observe whether the adhesion.
(2) the preparation of products with silver cardboard, cutting into 10 cm by 10 cm square, stack back down on 5 kg weight on keep within 70 ℃ oven for 12 hours, take out, see if stick together, or the coating will be lost.
(3) apply resin coating to vacuum coated paper, dry, 8cm by 20cm, jinan languang heat seal test.
Dissection test. Apply the coating to the PET membrane, dry, use 3M tape, and test the stripping.
The effect of the type of diethylene glycol on product performance. Actual test using different polyester glycol (ether) and on the ratio of the number of adjustment, found in polycarbonate by alcohol and high temperature resistant polyester glycol 6-4 ratio of reaction resin was prepared by temperature tolerance and stripping the closest requirements, other single dibasic alcohol to make product temperature resistance and easy peeling performance cannot achieve unity, some difficult stripping, some temperature resistance is poor.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian