News Details
Crosslinking agent for waterproof coating
2017-6-29 17:16:43
Crosslinking agent for waterproof coating
Waterproofing paint for buildings. At present, the application of solvent - based polyurethane coatings is widely used in building waterproof field. But with the increasing of environmental protection, the coating must be developed in a solvent-free and water-based direction. WPU can not meet the requirement of building waterproof coating due to the introduction of hydrophilic group, so it can improve and improve the corresponding performance through modification.
C organism of anion WPU dispersions with nitrogen (PUD) crosslinking modification, the results showed that the nitrogen at room temperature c organism can react with PUD carboxyl group on the chain, the join can significantly improve the coating of water resistance, solvent resistance and stain resistance.
Yi-ding shen with isophorone diisocyanate, polyether glycol (PTMG) and dihydroxy methyl propionic acid as the main raw material to synthesize polyurethane pre polymers, and introduce the double hydroxyl containing ketone carbonyl compounds (DDP) and cross-linked polymers in advance, then add 3 - ammonia propyl triethoxy silane (KH550) modification, stable high crosslinking degree was synthesized by aliphatic WPU, the research results show that KH550 could significantly improve the mechanical properties of waterborne polyurethane and the medium resistance.
When the quality score of KH550 increased from 0 to 10%, the tensile strength of latex film increased from 20MPa to 27MPa. The absorption rate decreased from 43.2% to 21.3%, and the rate of acetone was decreased from 47.5% to 26.2%.
TG analysis showed that the thermal stability of polyurethane film was significantly increased with the increase of KH550. Guo Song agent on using castor oil as stated such as synthesis of WPU film-former, with better waterproof properties such as surface energy, water absorption and contact Angle respectively to investigate the different dosage of castor oil of WPU waterproof effect.
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
Results show that when the mass fraction of castor oil is 4%, its surface can only 26.3 mN/m, water contact Angle of 106.8 °, bibulous rate is 8.7%, the tensile strength of 22.77 MPa, the elongation at break 489.83%, start decomposition temperature to 173 ℃, of WPU film has a good waterproof performance and mechanical performance. The above varieties can be used for building waterproof.
Insulation paint. The rapid development of economy has accelerated building energy consumption, which has caused great energy burden and serious environmental pollution. Doors and Windows (especially glass) are the most vulnerable part of building energy. In order to save energy, transparent thermal insulation coatings came into being.
Coating on the surface of glass, can form a layer of transparent and insulating film, so that the glass can meet the lighting demand and have a good thermal insulation effect. Therefore, the requirement of the coating is high visible light transmittance and good thermal insulation effect. Some scholars have found that the inclusion of nano-functional filler in WPU resin can make both transparent and thermal insulation coatings better.
Using PUA resin as the base material, the glass coating of water based transparent insulation is prepared by using nanometer oxide (ITO) paste as the filler, and the insulating sandwich glass is made. The glass irradiation resistant, heat resistant and impact resistant performance is good, and it has good heat insulation effect and visible light transmittance, when YanJi quality ratio of 1:4, nano ITO transparent heat insulating coating (380 ~ 780 nm) in the visible transmittance at about 75%, shading coefficient can reach 0.57, insulation more than 15 ℃.
Nanometer antimony tin oxide (ATO) as fillers used in coatings, the WPU as film-former ATO insulation transparent coating was prepared, and the coating optical performance characterization, the results show that when the pigment volume concentration (PVC) of 0.081 of the nanometer ATO transparent heat insulating coating the coating (30 microns), the visible light transmittance can reach 86.2%, near infrared region (800 ~ 2500 nm) shielding rate can reach 61.3%, with good heat insulation effect and the visible light region enough transparency.
Nano-ato and WPU were prepared by a certain process to produce nano-insulating coatings, which were coated on the glass surface to make low radiant glass. Optical performance analysis shows that it has good heat insulation effect, 6 mm thick white glass coating after SC shading coefficient is less than 0.67, and high visible light transmittance is greater than 63%, and the glass surface smooth level off good visibility.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Waterproofing paint for buildings. At present, the application of solvent - based polyurethane coatings is widely used in building waterproof field. But with the increasing of environmental protection, the coating must be developed in a solvent-free and water-based direction. WPU can not meet the requirement of building waterproof coating due to the introduction of hydrophilic group, so it can improve and improve the corresponding performance through modification.
C organism of anion WPU dispersions with nitrogen (PUD) crosslinking modification, the results showed that the nitrogen at room temperature c organism can react with PUD carboxyl group on the chain, the join can significantly improve the coating of water resistance, solvent resistance and stain resistance.
Yi-ding shen with isophorone diisocyanate, polyether glycol (PTMG) and dihydroxy methyl propionic acid as the main raw material to synthesize polyurethane pre polymers, and introduce the double hydroxyl containing ketone carbonyl compounds (DDP) and cross-linked polymers in advance, then add 3 - ammonia propyl triethoxy silane (KH550) modification, stable high crosslinking degree was synthesized by aliphatic WPU, the research results show that KH550 could significantly improve the mechanical properties of waterborne polyurethane and the medium resistance.
When the quality score of KH550 increased from 0 to 10%, the tensile strength of latex film increased from 20MPa to 27MPa. The absorption rate decreased from 43.2% to 21.3%, and the rate of acetone was decreased from 47.5% to 26.2%.
TG analysis showed that the thermal stability of polyurethane film was significantly increased with the increase of KH550. Guo Song agent on using castor oil as stated such as synthesis of WPU film-former, with better waterproof properties such as surface energy, water absorption and contact Angle respectively to investigate the different dosage of castor oil of WPU waterproof effect.
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
Results show that when the mass fraction of castor oil is 4%, its surface can only 26.3 mN/m, water contact Angle of 106.8 °, bibulous rate is 8.7%, the tensile strength of 22.77 MPa, the elongation at break 489.83%, start decomposition temperature to 173 ℃, of WPU film has a good waterproof performance and mechanical performance. The above varieties can be used for building waterproof.
Insulation paint. The rapid development of economy has accelerated building energy consumption, which has caused great energy burden and serious environmental pollution. Doors and Windows (especially glass) are the most vulnerable part of building energy. In order to save energy, transparent thermal insulation coatings came into being.
Coating on the surface of glass, can form a layer of transparent and insulating film, so that the glass can meet the lighting demand and have a good thermal insulation effect. Therefore, the requirement of the coating is high visible light transmittance and good thermal insulation effect. Some scholars have found that the inclusion of nano-functional filler in WPU resin can make both transparent and thermal insulation coatings better.
Using PUA resin as the base material, the glass coating of water based transparent insulation is prepared by using nanometer oxide (ITO) paste as the filler, and the insulating sandwich glass is made. The glass irradiation resistant, heat resistant and impact resistant performance is good, and it has good heat insulation effect and visible light transmittance, when YanJi quality ratio of 1:4, nano ITO transparent heat insulating coating (380 ~ 780 nm) in the visible transmittance at about 75%, shading coefficient can reach 0.57, insulation more than 15 ℃.
Nanometer antimony tin oxide (ATO) as fillers used in coatings, the WPU as film-former ATO insulation transparent coating was prepared, and the coating optical performance characterization, the results show that when the pigment volume concentration (PVC) of 0.081 of the nanometer ATO transparent heat insulating coating the coating (30 microns), the visible light transmittance can reach 86.2%, near infrared region (800 ~ 2500 nm) shielding rate can reach 61.3%, with good heat insulation effect and the visible light region enough transparency.
Nano-ato and WPU were prepared by a certain process to produce nano-insulating coatings, which were coated on the glass surface to make low radiant glass. Optical performance analysis shows that it has good heat insulation effect, 6 mm thick white glass coating after SC shading coefficient is less than 0.67, and high visible light transmittance is greater than 63%, and the glass surface smooth level off good visibility.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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