In this paper the additives used in phenolic foaming are introduced in details and the mechanisms are also discussed. The different toughening methods of phenolic foam are described systematically.

• 本文介绍了酚醛泡沫制备中所用的发泡助剂及其发泡机理,系统地介绍了酚醛泡沫增韧改性的各种方法。