Synthesis of Hydrophobic, Crosslinkable Resins.
Abstract
This project is concerned with new methods of synthesizing thermosetting resins. The resins to be produced are intended as matrix materials for fiber composites, and other organic products such as adhesives. The resins must have good moisture resistance. That is, the materials must withstand prolonged use under conditions such as 80 C and 95% relative humidity, with good retention of mechanical properties in the dry state at up to 125 C. The fabrication procedures should be comparable in simplicity with those currently in use in industry. The report discusses the approaches available, and covers the literature from 1974 to 1983. The literature discussed is mainly that concerning reactions with potential (a) in producing prepolymers and (b) in subsequently carrying out free radical crosslinking reactions. Literature relating to established thermosetting resins, and to novel resins which do not promise hygrothermal stability, is excluded. Brief indications are given of some experimental procedures currently under investigation. The common feature of these procedures is that they utilise the Wittig reaction for producing crosslinking sites. Originator furnished key words include: Thermosetting, resin, matrix, composite, moisture, water, synthesis, unsaturation, free radical.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1984
- Accession Number
- ADA150658
Entities
People
- A. E. Matthews
- G. Pritchard
- J. S. Ghotra
- W. E. Douglas