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Phenol type antioxidant be oxidated to hydroquinones type structure. The color appear as yellow or dark-brown
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∙ 13y ago
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What is a phenolic polymer?
Phenolic polymer = made of phenylpropanoid subunits (called monolignols) which are derived from phenylalanine
What kind of phenolic resins resol or novolac are suitable for making phenolic foam?
i make the phenolic foam out of both of them in the same formula it works out fairly well but i am engineering it to get top performance out of the polymers.
What is an arylsulfotransferase?
An arylsulfotransferase is a sulfotransferase enzyme which transfers a sulfate group from phenolic sulfate esters to a phenolic acceptor substrate.
Is phenolic thermosetting or thermoplastic?
Thermoset
What would be a good replacement for phenolic resin in a coating that can withstand higher temperatures and still retain all the properties that phenolic resin have?
Castor nut oil would be a good start
What is biphenol a?
A biphenol is any compound which has two phenolic hydroxy groups, such a phenolic derivative of biphenyl.
What is a phenolic polymer?
Phenolic polymer = made of phenylpropanoid subunits (called monolignols) which are derived from phenylalanine
What kind of phenolic resins resol or novolac are suitable for making phenolic foam?
i make the phenolic foam out of both of them in the same formula it works out fairly well but i am engineering it to get top performance out of the polymers.
What is an arylsulphotransferase?
An arylsulphotransferase is a a sulphotransferase enzyme which transfers a sulphate group from phenolic sulphate esters to a phenolic acceptor substrate.
What is an arylsulfotransferase?
An arylsulfotransferase is a sulfotransferase enzyme which transfers a sulfate group from phenolic sulfate esters to a phenolic acceptor substrate.
Properties of phenolic resin why we prefer phenolic over epoxy resin?
Phenolic resin is less costly and easier to work with than epoxy. Many epoxy resin systems have a very short pot life.
Is phenolic thermosetting or thermoplastic?
Thermoset
What is the biological effect of phenolic compound?
The phenolic compound has a great effect on one psychological state. However, this is not the only effect is has on people.
How do you paint phenolic resin material?
Phenolic resins are used in the production of circuit boards. Phenolic resin based paints are mainly metal paints, formed with the combination of epoxy resins. You can apply these paints on metals with different techniques.
What is phoresis of the liver?
abd. distention, Yellowing of the skin, yellowing of the white of the eyes
How do you remove yellowing from vinyl flooring?
yellowing in vinyl usually means the plasticizes in the product have reacted to something ie. water or solvent. this yellowing can not be removed sorry.
What is the solvent for epoxy phenolic resins?
acetone
