Method of making a cyanate ester foam

摘要

A cyanate ester resin mixture with at least one cyanate ester resin, an isocyanate foaming resin, other co-curatives such as polyol or epoxy compounds, a surfactant, and a catalyst/water can react to form a foaming resin that can be cured at a temperature greater than 50° C. to form a cyanate ester foam. The cyanate ester foam can be heated to a temperature greater than 400° C. in a non-oxidative atmosphere to provide a carbonaceous char foam.

主权项

1. A method of making a cyanate ester foam, comprising:
forming a resin mixture comprising at least one cyanate ester resin and a isocyanate foaming resin, thereby providing a total resin mixture of hundred parts by weight; adding a catalyst/water mixture to the resin mixture at a temperature sufficient to keep the resin mixture reacting to form a foaming resin; and curing the foaming resin to make a solid cyanate ester foam.