Method of treating cellulose material with CO₂or source thereof

摘要

The present invention relates to materials having improved and useful properties and to methods relating to the manufacture of said materials. In particular the present invention relates to a method of modifying the surface of a material, preferably a fibrous material, to enable carbon dioxide to be carried by the surface. The carbon dioxide may be bound to the surface in a reversible or irreversible manner. The method of treating the surface of a material comprises (a) contacting the surface of the material with a composition comprising an amino compound; and (b) contacting the surface of the material with a composition comprising carbon dioxide or a source thereof.

主权项

1. A method of treating the surface of a material, the method comprising the steps of:
(a) contacting the surface of the material with a composition comprising at least 40 wt % of ammonia; and (b) contacting the surface of the material with a composition comprising carbon dioxide having a pressure of between 150 kPa and 3000 kPa, wherein the material is a cellulosic material comprising natural fibers, and wherein the composition used in step (b) comprises neat carbon dioxide or further comprises a diluent or carrier.