Furan Polymer

Name:
Furan Polymer
Detailed information:
A plastic derived (1) from furfuryl alcohol or (2) from furfural or reaction products of furfural and a ketone. The materials are dark colored and resistant to solvents, most nonoxidizing acids, alkalies, and specific corrosives such as dinitrogen pentoxide.

Properties:

Physical properties of a typical asbestos-reinforced furan polymer are d 1.7, tensile strength 5000 psi, flexural strength 7500 psi, impact strength 0.5 ft lb/in. notch, water absorption 0.2%, and coefficient of thermal expansion 3.0–10−5 in/in/F.

Use:

Coating asphaltic pavements, foundry sand cores, shell molding and corrosion-resistant materials of construction. Since furfural is readily obtainable by heating pentosan-containing products such as corncobs with mineral acid, these resins are inexpensive and have great potential use where products with their characteristics are required.