Lanzhou Physical and Chemical Institute uses waste beverage bottles to produce polyester polyols

China Science and Technology Lanzhou Institute of Physical and Chemical Technology recently launched a new technology for the production of polyester polyols. The technology can be used to dispose waste beverage bottles, edible oil barrels, and polyester plant wastes under the action of organic alcohol chemicals and catalysts to produce polyester polyols for the production of polyurethane foam materials and plastics and rubbers. , coatings, adhesives and other synthetic material intermediates.

Polyester polyols have advantages in temperature resistance, wear resistance, oil resistance and mechanical strength compared with the widely used polyether polyols on the market. Therefore, polyurethane foam materials, synthetic leathers, coatings, adhesives, and elastomers Developed products show their characteristics. In particular, in polyether-polyester hard foam materials that have been widely used in recent years, increasing the proportion of polyester with more non-alcohol can significantly increase the strength of the material, thereby significantly reducing the production cost of the polyurethane foam material.