有机气凝胶基于其纳米结构和组成,有望取代传统聚合物用作造型材料黏结剂。以间苯二酚-甲醛有机气凝胶为黏结剂制得的铸型强度高、透气性及保温性能好,型芯易移除,同时热分解产物无污染,作为新型的型(芯)砂黏结剂在砂型铸造生产中具有广阔的应用前景。综述了国内外关于间苯二酚-甲醛(RF)气凝胶作为铸造砂型(芯)黏结剂的研究进展,并对其未来发展趋势进行了分析。 Organic aerogels based on their nanostructures and compositions are expected to replace the traditional polymers used as modeling materials binders. Resorcinol - formaldehyde organic airgel as a binder for the mold made of high strength, good permeability and thermal insulation, easy removal of the core, while the thermal decomposition products without pollution, as a new type of (core) sand Binder in the sand casting production has broad application prospects. The research progress of resorcinol - formaldehyde (RF) aerogels at home and abroad as casting sand (core) binders is reviewed and their future development trends are analyzed.