News Details
Polyurethane waterproof coating used crosslinking agent
2017-6-28 20:45:28
Polyurethane waterproof coating used crosslinking agent
Bridge with two component polyurethane waterproof coating is made up of A and B got behind in membrane reaction, A component based on polyether and many raw materials such as isocyanate, through condensation reaction of isocyanate based pre polymers containing end; Part B is a paste made from crosslinking agents, accelerators, toughening agents, thickening agents, anti-mildew agents, fillers and pigments.
When used, mix A and B together in A certain proportion. After stirring evenly, scrape on the base of the construction. After several hours of reaction crosslinking, it forms an elastic, tenacious and durable waterproof coating.
The coating has excellent heat resistance, and the bonding shear performance, apply on the deck after formed by the elasticity of high strength film, can withstand the deck load movement for a long time, to prevent the structure damage caused by water penetration, reinforcement corrosion, concrete carbonation, greatly extend the service life of bridge deck.
Heat resistant performance is good: coating under the condition of 160 ℃ high temperature to keep in good condition, can resist high temperature of asphalt concrete pavement compaction.
Fight cold ability is strong, waterproof layer under 40 ℃ - still can structure deformation under heavy load and horizontal load of the shear.
Good film elasticity: the elongation rate of the waterproof coating is more than 450%, completely resistant to structural deformation.
High strength, strong adhesion to the base.
Acid and alkali resistance, corrosion resistance, strong anti-permeability, prolong the service life of the bridge.
The construction is simple: spray, brush painting, scraping all can, cold construction, construction technology is simple and convenient.
It is suitable for anti-corrosion, anti-seepage and waterproof of Bridges and highways.
Construction method: spraying, scraping and painting.
Basic requirements: the surface of the base should be solid and smooth, and the cement mortar should be used to find the normal conditions. It must be fully maintained. It should not have the phenomenon of crisp, sand and peeling, which should meet the design requirements. The surface of concrete shall be handled by pulling, milling or blasting. The water content of the bridge should not be greater than 9%.
After the primary cleaning is finished, the key areas such as yin-yang Angle, expansion seam and construction seam should be treated.
Brush the base treating agent to improve the adhesion strength and shear strength.
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
When the primary treatment agent is dry, then the construction of waterproof coating.
After the coating is done, the coating can be brushed, and the coating is applied to the first time, and the film thickness is even. Brush thickness of each layer should not exceed 0.5mm.
The waterproof layer shall conform to the design standard. The fiber reinforced layer can be added according to the design requirement.
The asphalt concrete can be used to form the insulating layer before the spreading asphalt concrete, so as to prevent the film from being damaged.
Before the paint is used, it is accurate to say that A and B are taken together, and stir well and mix well, the amount should be used up in 20min.
Construction temperature should be in 5 to 35 ℃.
Before the film is dry and without asphalt concrete, prevent trampling or driving.
When the waterproof layer must be done, the asphalt can be spread out.
Bridge expansion joints, anti-collision wall expansion joints, bridge surface drainage holes and other water-proof, separate processing.
Reference dosage: 1.1mm thick film coating, the total amount of paint is about 1.4-1.6kg/m2.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Bridge with two component polyurethane waterproof coating is made up of A and B got behind in membrane reaction, A component based on polyether and many raw materials such as isocyanate, through condensation reaction of isocyanate based pre polymers containing end; Part B is a paste made from crosslinking agents, accelerators, toughening agents, thickening agents, anti-mildew agents, fillers and pigments.
When used, mix A and B together in A certain proportion. After stirring evenly, scrape on the base of the construction. After several hours of reaction crosslinking, it forms an elastic, tenacious and durable waterproof coating.
The coating has excellent heat resistance, and the bonding shear performance, apply on the deck after formed by the elasticity of high strength film, can withstand the deck load movement for a long time, to prevent the structure damage caused by water penetration, reinforcement corrosion, concrete carbonation, greatly extend the service life of bridge deck.
Heat resistant performance is good: coating under the condition of 160 ℃ high temperature to keep in good condition, can resist high temperature of asphalt concrete pavement compaction.
Fight cold ability is strong, waterproof layer under 40 ℃ - still can structure deformation under heavy load and horizontal load of the shear.
Good film elasticity: the elongation rate of the waterproof coating is more than 450%, completely resistant to structural deformation.
High strength, strong adhesion to the base.
Acid and alkali resistance, corrosion resistance, strong anti-permeability, prolong the service life of the bridge.
The construction is simple: spray, brush painting, scraping all can, cold construction, construction technology is simple and convenient.
It is suitable for anti-corrosion, anti-seepage and waterproof of Bridges and highways.
Construction method: spraying, scraping and painting.
Basic requirements: the surface of the base should be solid and smooth, and the cement mortar should be used to find the normal conditions. It must be fully maintained. It should not have the phenomenon of crisp, sand and peeling, which should meet the design requirements. The surface of concrete shall be handled by pulling, milling or blasting. The water content of the bridge should not be greater than 9%.
After the primary cleaning is finished, the key areas such as yin-yang Angle, expansion seam and construction seam should be treated.
Brush the base treating agent to improve the adhesion strength and shear strength.
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
When the primary treatment agent is dry, then the construction of waterproof coating.
After the coating is done, the coating can be brushed, and the coating is applied to the first time, and the film thickness is even. Brush thickness of each layer should not exceed 0.5mm.
The waterproof layer shall conform to the design standard. The fiber reinforced layer can be added according to the design requirement.
The asphalt concrete can be used to form the insulating layer before the spreading asphalt concrete, so as to prevent the film from being damaged.
Before the paint is used, it is accurate to say that A and B are taken together, and stir well and mix well, the amount should be used up in 20min.
Construction temperature should be in 5 to 35 ℃.
Before the film is dry and without asphalt concrete, prevent trampling or driving.
When the waterproof layer must be done, the asphalt can be spread out.
Bridge expansion joints, anti-collision wall expansion joints, bridge surface drainage holes and other water-proof, separate processing.
Reference dosage: 1.1mm thick film coating, the total amount of paint is about 1.4-1.6kg/m2.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian