A resin-coated substrate composition includes a resin-coated substrate comprising a particulate substrate coated with a polymer resin, and an additive comprising bentonite or a zeolite. A method of preparing a resin-coated substrate composition includes heating a particulate substrate, and mixing the heated substrate with a polymer resin and an additive such as bentonite or a zeolite. In some embodiments, a foundry sand composition includes the resin-coated substrate composition. In some embodiments, a proppant sand composition includes the resin-coated substrate composition.
一种
树脂涂层基质组合物包括一种
树脂涂层基质,该基质包括涂有聚合物
树脂的颗粒基质,以及由膨润土或
沸石组成的添加剂。制备
树脂涂层基底组合物的方法包括加热颗粒基底,并将加热后的基底与聚合物
树脂和添加剂(如膨润土或
沸石)混合。在某些实施例中,铸造砂组合物包括
树脂涂层基底组合物。在某些实施方案中,支撑剂砂组合物包括
树脂涂层基底组合物。