News Details
Epoxy silane oligomer coating crosslinking agent
2017-4-6 11:16:53
Epoxy silane oligomer coating crosslinking agent,Epoxy silane oligomer by control epoxy silane product of hydrolysis and condensation reaction synthesis, in these reactions, alkoxy content is maintained at a certain level, retention of the reactive epoxy group.
The epoxy group in the low poly will happen in the hydrolysis reaction, but the side effects is very small, only on the oligomer to produce a small amount of glycol base. Because of the existence of silane and organic functional groups, still have a reactive oligomers: 1) by silane part and base material, other silane and siloxane oligomers in coupling; 2) by epoxy grafted to the polymer functional groups.
As part of the silane condensation into oligomer forms, materials of alkoxy content is reduced, which reduces the VOC in the formula. Other silane oligomers were 100% active matter, so there is no need to add solvent. Compared with single silane, oligomeric silane hydrolysis is not easy to happen, can be hydrolyzed in some controllable conditions.
As A representative of ESO technology products, with conventional single silane as gamma glycidyl ether base propyl silane three oxygen radicals (Silquest * A - 187 silane) and gamma - propyl glycidyl ether oxygen triethoxy silane (Silquest * A - 1871 silane) compared to the part of the performance of such as product has many advantages of oligomeric silane structure.
CoatOSil * the release of the MP 200 hydrolysis ethanol volume is low, so the VOC content is low. In practice, contain the same amount of active ingredient of siloxane, ESO release in very small amounts of ethanol.
The calculation results show that if using 75% CoatOSil * MP replacing parts of the gamma - 200 silane glycidyl ether base propyl silane three oxygen radicals (Silquest * A - 187 silane), release the VOC was only about 22% of its weight. Therefore CoatOSil * MP 200 released after hydrolysis eventually VOC content less than 60% monomer epoxy silane.
And ethoxy products (Silquest * A - 1871 silane) to do the same contrast, VOC to release A quantity to little more than 75%. In practice, due to the low content in the formula, the ESO's VOC content is even less.
CoatOSil * MP 200 silane is another important feature of epoxy equivalent value is higher. Epoxy density, the greater the potential crosslinking reaction efficiency is higher, with carboxyl, hydroxyl, amino functional groups in the process of the coupling reaction of ESO density is larger. This characteristic can make the curing speed.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ 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).
Use 29 si NMR CoatOSil * MP 200 silane scan shows the characteristics of a ESO silane alcohol-based condensation degree. The relative content of different kinds such as silanol (SiOH), alkoxy silane (SiOR) and oxygen alkyl siloxane (SiOSi) by T0, T1, T2 and T3 said four categories. The four symbols represent low gathered the SiO silane a special key.
On behalf of the three keys of alkoxy silane Tx with each silicon alkyl SiOSi number corresponding to the key, in which x is the number of keys SiOSi. Therefore, do not contain SiOSi key three alkoxy silane or silicon alcohol usually by T0 said. T3 said a silane reacts with other silane fully three SiOSi keys.
CoatOSil * 29 si MP 200 silane NMR response spectrum. CoatOSil * MP 200 also produces large quantities of alkanes in the reaction matrix of oxygen and silicon alcohol based, which expressed in relative content of T1 and T2, respectively.
ESO can be applied to a lot of the same application field of epoxy silane and monomer. ESO as acrylic emulsion crosslinking agent and the potential application of metal particles surface modification agent is described below:
CoatOSil * MP 200 silane in the recipe used method is the same as monomer silane. In the applications of emulsion, can join the emulsion after polymer production well. In this way, we can be processed by Silquest * A - 1871 styrene acrylic emulsion with CoatOSil * MP 200 deal with the same styrene acrylic emulsion for performance comparison.
In order to get accurate alignment effect, adjust the actual weight percentage of each additive to ensure that the content of active matter to achieve the same level. For these coatings and standard the gel content of styrene acrylic emulsion, the fouling resistance and Mr Konig hardness test.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
The epoxy group in the low poly will happen in the hydrolysis reaction, but the side effects is very small, only on the oligomer to produce a small amount of glycol base. Because of the existence of silane and organic functional groups, still have a reactive oligomers: 1) by silane part and base material, other silane and siloxane oligomers in coupling; 2) by epoxy grafted to the polymer functional groups.
As part of the silane condensation into oligomer forms, materials of alkoxy content is reduced, which reduces the VOC in the formula. Other silane oligomers were 100% active matter, so there is no need to add solvent. Compared with single silane, oligomeric silane hydrolysis is not easy to happen, can be hydrolyzed in some controllable conditions.
As A representative of ESO technology products, with conventional single silane as gamma glycidyl ether base propyl silane three oxygen radicals (Silquest * A - 187 silane) and gamma - propyl glycidyl ether oxygen triethoxy silane (Silquest * A - 1871 silane) compared to the part of the performance of such as product has many advantages of oligomeric silane structure.
CoatOSil * the release of the MP 200 hydrolysis ethanol volume is low, so the VOC content is low. In practice, contain the same amount of active ingredient of siloxane, ESO release in very small amounts of ethanol.
The calculation results show that if using 75% CoatOSil * MP replacing parts of the gamma - 200 silane glycidyl ether base propyl silane three oxygen radicals (Silquest * A - 187 silane), release the VOC was only about 22% of its weight. Therefore CoatOSil * MP 200 released after hydrolysis eventually VOC content less than 60% monomer epoxy silane.
And ethoxy products (Silquest * A - 1871 silane) to do the same contrast, VOC to release A quantity to little more than 75%. In practice, due to the low content in the formula, the ESO's VOC content is even less.
CoatOSil * MP 200 silane is another important feature of epoxy equivalent value is higher. Epoxy density, the greater the potential crosslinking reaction efficiency is higher, with carboxyl, hydroxyl, amino functional groups in the process of the coupling reaction of ESO density is larger. This characteristic can make the curing speed.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine packingļ¼ 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).
Use 29 si NMR CoatOSil * MP 200 silane scan shows the characteristics of a ESO silane alcohol-based condensation degree. The relative content of different kinds such as silanol (SiOH), alkoxy silane (SiOR) and oxygen alkyl siloxane (SiOSi) by T0, T1, T2 and T3 said four categories. The four symbols represent low gathered the SiO silane a special key.
On behalf of the three keys of alkoxy silane Tx with each silicon alkyl SiOSi number corresponding to the key, in which x is the number of keys SiOSi. Therefore, do not contain SiOSi key three alkoxy silane or silicon alcohol usually by T0 said. T3 said a silane reacts with other silane fully three SiOSi keys.
CoatOSil * 29 si MP 200 silane NMR response spectrum. CoatOSil * MP 200 also produces large quantities of alkanes in the reaction matrix of oxygen and silicon alcohol based, which expressed in relative content of T1 and T2, respectively.
ESO can be applied to a lot of the same application field of epoxy silane and monomer. ESO as acrylic emulsion crosslinking agent and the potential application of metal particles surface modification agent is described below:
CoatOSil * MP 200 silane in the recipe used method is the same as monomer silane. In the applications of emulsion, can join the emulsion after polymer production well. In this way, we can be processed by Silquest * A - 1871 styrene acrylic emulsion with CoatOSil * MP 200 deal with the same styrene acrylic emulsion for performance comparison.
In order to get accurate alignment effect, adjust the actual weight percentage of each additive to ensure that the content of active matter to achieve the same level. For these coatings and standard the gel content of styrene acrylic emulsion, the fouling resistance and Mr Konig hardness test.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Diethyl toluene diamine(DETDA) http://www.yaruichem.com
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