复合法制备高膨胀率膨胀蛭石

发布时间：2018-05-27 19:09

本文选题：蛭石 + 化学处理　；参考：《硅酸盐通报》2017年09期

【摘要】：对蛭石样品采用新型的化学-热处理法制备膨胀蛭石,并对制备的膨胀蛭石样品进行形貌、XRD、DSC分析。结果表明:复合法制备的膨胀蛭石层与层之间分离的较为彻底,气孔壁薄,效果明显优于高温膨胀蛭石;双氧水在蛭石层间分解释放氧气撑开蛭石层间未引起蛭石结构的变化,膨胀蛭石结构破坏时的温度与蛭石原矿一致,不影响蛭石的热性能,复合法制备的膨胀蛭石在高温条件下结构破坏后不会形成新物相。
[Abstract]:The expanded vermiculite was prepared by a new chemical-heat treatment method, and the morphology of the sample was analyzed by XRD- DSC. The results showed that the expanded vermiculite layer prepared by the composite method was separated completely from the layer, the pore wall was thin, and the effect was obviously better than that of the high temperature expanded vermiculite layer, and the decomposition and release of oxygen between the vermiculite layers by hydrogen peroxide did not cause the change of the vermiculite structure. The temperature of the expansive vermiculite structure is the same as that of the vermiculite ore, and the thermal properties of the vermiculite are not affected. The new phase of the expanded vermiculite prepared by the composite method will not be formed after the structure is destroyed at high temperature.
【作者单位】：武汉理工大学资源与环境工程学院;武汉理工大学矿物资源加工与环境湖北省重点实验室;浙江国泰密封材料股份有限公司;
【基金】：国家自然科学基金(青年科学基金)(51504173)
【分类号】：TQ170.6

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