复合粉粘结剂 ,系以含支链 >80 %的淀粉为主要原料 ,经特殊工艺处理 ,再复合拒水性好的酯化淀粉 ;既具有较高强度 ,又有一定抗吸潮性 ,无毒、无味 ,工艺比合脂砂简便 ;工装与合脂砂通用 ,使用综合成本比合脂砂经济 ,是1种环保型的粘结剂。 Composite powder binder is a kind of esterified starch which contains more than 80% of branched starch as the main raw material and is treated by a special process and then has good water-repellent properties. It not only has high strength but also has anti-hygroscopicity, Toxic, tasteless, simple process than the co-sand; tooling and co-mortar common, the use of integrated cost than the co-sand economy, is an environmentally friendly binder.