News Details
Paint (paint) with crosslinking agent
2017-6-24 17:53:55
Paint (paint) with crosslinking agent
In addition to measuring the coating properties of this new paint base, we also used the aforementioned DSC technology to determine their crosslinking rate. Cross-linking agent 3 is not included in this part of the study.
Because at 4.5 ℃ makings of crosslinking reaction too fast and may not accurately measuring delta H total. Two reactants a mixed can see a strong exothermic action occurs, even cooling in advance (4.5 ℃), epoxy resins and crosslinking agent as well.
The DSC analysis showed that the paint base based on crosslinking agent 1 and 2 had a high degree of reaction in three days (> 80%). Compare the sample in 4.5 ℃ of reaction rate is much lower. It eventually reached the same degree of cross-linking as the polyamide, but the paint film was still very low (4B in 14 days).
This paper briefly introduces the recent progress in the work of low temperature crosslinking coatings of epoxy/amine paint base system. The first part reviews the crosslinking techniques used in this area. Several commercially available low crosslinking agent with standard liquid epoxy resin varnish, under the condition of different crosslinking: 25 ℃, RH50 %; 10 ℃, RH90 %; And 4.5 ℃, RH80 % couplet membrane, the measured film performance is evaluated.
The reaction degree of the crosslinking initial stage with the differential scanning calorimeter (DSC) was discussed in detail. Polyacrylate modified liquid epoxy resin has been used in the floor industry for several years because of their unique low temperature reactivity. This study reviewed the paint properties of polyacrylate modified liquid epoxy resin with low temperature crosslinking agent.
The results show that this new type of paint system has better film transparency, anti-whiteness and hardness than standard liquid epoxy resin. Based on the positive results of this study, we have set out to test the coating properties of this kind of paint base system with white enamel as the starting formula.
Natural asphalt: the softening point is high, the black degree is high, the paint film pointed out is bright and hard. Asphalt: the softening point is generally lower than natural asphalt. Coal tar: excellent resistance to water and moisture resistant, resistant to oxidation of nitrogen, carbon dioxide and chlorine gas, hydrochloric acid gases and other dilute acid, dilute alkali have certain resistance, good adhesion on steel, is not easy to oxidation and corrosion. But the dissolubility is poor, the sun is not resistant to the sun and the oil.
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).
The coating with asphalt as the main material has the ability of good water resistance. Good chemical resistance: it has certain acid resistance and alkali resistance. Good insulation performance: its heat resistance and dry performance are not very good, so it cannot be used as a high grade insulation material. The decorative and protective properties are good.
There are many varieties of bituminous paint, which are mainly divided into two categories: the insoluble type: the variety is not widely used in coatings. It can be divided into four categories.
Asphalt-based asphalt: it can be dry at room temperature. It is characterized by fast drying and hard coating, but the adhesion and mechanical strength are poor. It is mainly used as protection paint for steel components, pipes, wood and cement surfaces under water and underground. It has good water resistance, moisture proof, anti-corrosion and anti-chemical erosion properties, but it is not suitable to be exposed to the sun.
Asphalt and resin-based asphalt: add epoxy or polyurethane, and make special water-resistant and anti-corrosive coatings.
Asphalt and oil - based bituminous paint: it can improve the weather resistance and light resistance of bituminous paint. The disadvantage is that the drying performance gets worse and the water resistance is reduced.
Bituminous paint based on asphalt, resin and oil.
Ding, such as through simple blending polysiloxane fluoride and TiO2 nanoparticles were prepared to room temperature crosslinking hydrophobic self-cleaning surface, the coating can not only in the different environment, different pH, wide temperature range and ultraviolet radiation, etc.) to keep excellent durability, and oil resistant performance. , therefore, can be prepared by the method has long hydrophobic and light catalytic self-cleaning performance of self-cleaning coatings, are widely used in buildings, Bridges, cable anti-icing coating and ship antifouling paint, etc.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
In addition to measuring the coating properties of this new paint base, we also used the aforementioned DSC technology to determine their crosslinking rate. Cross-linking agent 3 is not included in this part of the study.
Because at 4.5 ℃ makings of crosslinking reaction too fast and may not accurately measuring delta H total. Two reactants a mixed can see a strong exothermic action occurs, even cooling in advance (4.5 ℃), epoxy resins and crosslinking agent as well.
The DSC analysis showed that the paint base based on crosslinking agent 1 and 2 had a high degree of reaction in three days (> 80%). Compare the sample in 4.5 ℃ of reaction rate is much lower. It eventually reached the same degree of cross-linking as the polyamide, but the paint film was still very low (4B in 14 days).
This paper briefly introduces the recent progress in the work of low temperature crosslinking coatings of epoxy/amine paint base system. The first part reviews the crosslinking techniques used in this area. Several commercially available low crosslinking agent with standard liquid epoxy resin varnish, under the condition of different crosslinking: 25 ℃, RH50 %; 10 ℃, RH90 %; And 4.5 ℃, RH80 % couplet membrane, the measured film performance is evaluated.
The reaction degree of the crosslinking initial stage with the differential scanning calorimeter (DSC) was discussed in detail. Polyacrylate modified liquid epoxy resin has been used in the floor industry for several years because of their unique low temperature reactivity. This study reviewed the paint properties of polyacrylate modified liquid epoxy resin with low temperature crosslinking agent.
The results show that this new type of paint system has better film transparency, anti-whiteness and hardness than standard liquid epoxy resin. Based on the positive results of this study, we have set out to test the coating properties of this kind of paint base system with white enamel as the starting formula.
Natural asphalt: the softening point is high, the black degree is high, the paint film pointed out is bright and hard. Asphalt: the softening point is generally lower than natural asphalt. Coal tar: excellent resistance to water and moisture resistant, resistant to oxidation of nitrogen, carbon dioxide and chlorine gas, hydrochloric acid gases and other dilute acid, dilute alkali have certain resistance, good adhesion on steel, is not easy to oxidation and corrosion. But the dissolubility is poor, the sun is not resistant to the sun and the oil.
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).
The coating with asphalt as the main material has the ability of good water resistance. Good chemical resistance: it has certain acid resistance and alkali resistance. Good insulation performance: its heat resistance and dry performance are not very good, so it cannot be used as a high grade insulation material. The decorative and protective properties are good.
There are many varieties of bituminous paint, which are mainly divided into two categories: the insoluble type: the variety is not widely used in coatings. It can be divided into four categories.
Asphalt-based asphalt: it can be dry at room temperature. It is characterized by fast drying and hard coating, but the adhesion and mechanical strength are poor. It is mainly used as protection paint for steel components, pipes, wood and cement surfaces under water and underground. It has good water resistance, moisture proof, anti-corrosion and anti-chemical erosion properties, but it is not suitable to be exposed to the sun.
Asphalt and resin-based asphalt: add epoxy or polyurethane, and make special water-resistant and anti-corrosive coatings.
Asphalt and oil - based bituminous paint: it can improve the weather resistance and light resistance of bituminous paint. The disadvantage is that the drying performance gets worse and the water resistance is reduced.
Bituminous paint based on asphalt, resin and oil.
Ding, such as through simple blending polysiloxane fluoride and TiO2 nanoparticles were prepared to room temperature crosslinking hydrophobic self-cleaning surface, the coating can not only in the different environment, different pH, wide temperature range and ultraviolet radiation, etc.) to keep excellent durability, and oil resistant performance. , therefore, can be prepared by the method has long hydrophobic and light catalytic self-cleaning performance of self-cleaning coatings, are widely used in buildings, Bridges, cable anti-icing coating and ship antifouling paint, etc.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian