Ad
related to: bisphenol ether epoxy
Search results
Results From The WOW.Com Content Network
[12] [14] Bisphenol A Diglycidyl ether-based epoxy coatings are extensively used for coating the inside of cans which come into contact with food and are thus food contact materials. The materials and analogues and conjugates have been extensively tested for and analytical methods developed. [15] [16]
The tetrabrominated bisphenol A (TBBPA, 2,2-bis(3,5-dibromophenyl)propane) or its diglycidyl ether, 2,2-bis[3,5-dibromo-4-(2,3-epoxypropoxy)phenyl]propane, can be added to the epoxy formulation. The formulation may then be reacted in the same way as pure bisphenol A.
About 25–30% of all BPA is used in the manufacture of epoxy resins and vinyl ester resins. [9] [10] For epoxy resin, it is first converted to its diglycidyl ether (usually abbreviated BADGE or DGEBA). [44] [45] This is achieved by a reaction with epichlorohydrin under basic conditions.
Exceptions include bisphenol S, P, and M. "Bisphenol" is a common name; the letter following denotes the variant, which depends on the additional substituents. Bisphenol A is the most popular representative of the group, with millions of metric tons produced globally in the past decade, often simply called "bisphenol".
Diglycidyl ether itself is extremely toxic, and can prove fatal or cause permanent damage if inhaled or consumed orally. As a class of compounds, there are a number of them available commercially with much lower toxicity profiles. [3] [4] One such example is epoxy resin itself Bisphenol A diglycidyl ether.
Bisphenol A diglycidyl ether is a component in common household "epoxy". The chemical structure of the epoxide glycidol , a common chemical intermediate. Epothilones are naturally occurring epoxides.
Epoxy value derives from the Epoxy equivalent weight (EEW) or Weight Per Epoxide (WPE) and is a measure of the epoxy content of an epoxy resin or epoxy reactive diluent, or glycidyl ether. [1] This is an important parameter as it allows determination of the correct mix ratio of an epoxy system with a curing agent. [ 2 ]
Bis-GMA a typical "vinyl ester" derived from bisphenol A diglycidyl ether. This thermoset material can be used as an alternative to polyester and epoxy materials as the thermoset polymer matrix in composite materials, where its characteristics, strengths, and bulk cost are intermediate between polyester and epoxy. Vinyl ester has lower resin ...