FOB Price
Get Latest Price( Negotiable )
|Minimum Order
Place of Origin:
-
Price for Minimum Order:
-
Minimum Order Quantity:
-
Packaging Detail:
-
Delivery Time:
7-15 days
Supplying Ability:
-
Payment Type:
T/T, Western Union, Money Gram, PayPal, Other
Phenol formaldehyde resins (PF) or phenolic resins are synthetic
polymers obtained by the reaction of phenol or substituted phenol
with formaldehyde. Used as the basis for Bakelite, PFs were the
first commercial synthetic resins (plastics). They have been widely
used for the production of molded products including billiard
balls, laboratory countertops, and as coatings and adhesives. They
were at one time the primary material used for the production of
circuit boards but have been largely replaced with epoxy resins and
fiberglass cloth, as with fire-resistant FR*4 circuit board
materials.
There are two main production methods. One reacts phenol and
formaldehyde directly to produce a thermosetting network polymer,
while the other restricts the formaldehyde to produce a prepolymer
known as novolac which can be moulded and then cured with the
addition of more formaldehyde and heat. There are many variations
in both production and input materials that are used to produce a
wide variety of resins for special purposes.