My company's diazinium ring (dbu) has been awarded a gold booth service!
2018-05-11
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My company's diazinium ring (dbu) has been awarded a gold booth service!
(Summary description)After joining Integrity, my company's dibuza (dbu) was awarded a gold booth service. The key word is: "Diazabicyclo." The gold booth is in the form of image ads to help companies build brands and win
My company's diazinium ring (dbu) has been awarded a gold booth service!
(Summary description)After joining Integrity, my company's dibuza (dbu) was awarded a gold booth service. The key word is: "Diazabicyclo." The gold booth is in the form of image ads to help companies build brands and win
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- Time of issue:2018-05-11 16:26
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After joining Integrity, my company's dibuza (dbu) was awarded a gold booth service. The key word is: "Diazabicyclo." The gold booth is in the form of image ads to help companies build brands and win buyers’ trust.
DBU is mainly used for the production of cephalosporin semi-synthetic antibiotics. Is a special tertiary amine, its full name is °C, has a longer life cycle, and 80-120 °C is rapidly solidified. In particular, as an accelerator for an acid anhydride curing agent, the catalytic effect is excellent and the sensitivity to temperature is remarkable. 1,8-diazabicyclo(5,4,0)undecene-7, whose salt is u-CAT, the basicity of DBU is comparable to NaOH, and is used in epoxy resin complexes. Room temperature to 50
In addition, when a phosphite such as diphenylphosphite such as DBU and a reducing organic acid salt are used as an accelerator, a colorless and transparent cured resin can be obtained. Cured resins with DBU and its salts, or anhydride cured products using them as accelerators. Compared with the general use of tertiary amines, HOT is 30-50°C higher. These characteristics of the DBU series products have been applied, especially in the electronic industry, which has been widely used in the encapsulation of light-emitting devices, and has been studied domestically. This series of products has been used in light-emitting diode encapsulants to achieve commercial production.
DBU is a bicyclic anthraquinone compound used as a catalyst in the polyurethane industry. It is a low-odor gelling catalyst with strong catalytic activity and is mainly used in applications where strong gel catalysis is required, including alicyclic isocyanate or isocyanate. The formulations, because they are not as active as aromatic isocyanates, require very strong catalysts. The catalytic activity of DBU increases significantly with increasing temperature. For example, the catalytic rate constants of DBU to isocyanate-alcohol and isocyanate-water at 67°C are 67 and 35 times that at 25°C, respectively, and the commonly used bicyclic tertiary amine catalysts. The catalytic activity of triethylenediamine increased to 5 times and 6 times, respectively. DBU catalysts can be used in formulations such as integral skin foams, microcellular elastomers, and rigid foams.
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