Short Description:


Product Detail

Product Tags

Related Video

Feedback (2)

Good quality comes 1st; assistance is foremost; business enterprise is cooperation is our business enterprise philosophy which is regularly observed and pursued by our company for Nonyl Phenol Icis , Acrylonitrile Butadiene Styrene Copolymers Distributors , Cas 79-10-7 , With a wide range, top quality, reasonable rates and stylish designs, our products are extensively used with this industries and other industries.
Cas 101-68-8 Supply Phenol Formaldehyde Resin CAS 9003-35-4 High Quality And Low Price – Chemwin Detail:

Product Namephenolic resin

Molecular format:

CAS No:9003-35-4

Product molecular structure

phenolic resin

Chemical Properties

Phenol-formaldehyde resin is prepared as follows:
C6H5OH+H2C=O —> [-C6H2(OH)CH2-]n
One-Stage Resins. The ratio of formaldehyde to phenol is high enough to allow the thermosetting process to take place without the addition of other sources of cross-links.
Two-Stage Resins. The ratio of formaldehyde to phenol is low enough to prevent the thermosetting reaction from occurring during manufacture of the resin. At this point the resin is termed novolac resin. Subsequently, hexamethylenetetramine is incorporated into the material to act as a source of chemical cross-links during the molding operation (and conversion to the thermoset or cured state).

 

Application:

Phenolic resins are used for low-cost partsrequiring good electrical insulating properties,heat resistance, or chemical resistance. Theaverage shelf life of this resin is about 1 monthat 21.1°C. This can be extended by storing it ina refrigerator at 1.6 to 10°C. Varying the catalyst(according to the thickness of the cast) andraising the cure temperature to 93°C will alterthe cure time from as long as 8 h to as short as15 min.
Some shrinkage occurs in the finished casting(0.012 to 0.6 mm/mm), depending on thequantity of filler, amount of catalyst, and therate of cure. Faster cure cycles produce a higherrate of shrinkage. Since the cure cycle can beaccelerated, phenolics are used in short-runcasting operations.
Cast phenolic parts are easily removed fromthe mold if the parting agents recommended bythe supplier are used. Posteuring improves thebasic properties of the finished casting.


Product detail pictures:

Cas 101-68-8 Supply Phenol Formaldehyde Resin CAS 9003-35-4 High Quality And Low Price – Chemwin detail pictures


Related Product Guide:

It really is our obligation to satisfy your requirements and efficiently serve you. Your fulfillment is our greatest reward. We're hunting forward to your check out for joint development for Cas 101-68-8 Supply Phenol Formaldehyde Resin CAS 9003-35-4 High Quality And Low Price – Chemwin , The product will supply to all over the world, such as: Swiss, Bangladesh, Curacao, Our main objectives are to provide our customers worldwide with good quality, competitive price, satisfied delivery and excellent services. Customer satisfaction is our main goal. We welcome you to visit our showroom and office. We are looking forward to establish business relation with you.
  • Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Quintina from Philippines - 2018.09.29 13:24
    We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.
    5 Stars By Louise from Algeria - 2017.12.09 14:01
    Write your message here and send it to us