CN108892533A - 一种硅藻土基多孔陶瓷浆料的配方 - Google Patents

一种硅藻土基多孔陶瓷浆料的配方 Download PDF

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CN108892533A
CN108892533A CN201810909989.6A CN201810909989A CN108892533A CN 108892533 A CN108892533 A CN 108892533A CN 201810909989 A CN201810909989 A CN 201810909989A CN 108892533 A CN108892533 A CN 108892533A
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黄�俊
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Zhangjiagang New Material Technology Development Co Ltd
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Abstract

本发明公开一种硅藻土基多孔陶瓷浆料的配方，按照重量份计包括以下组成：精细硅藻土30～50份，纳米二氧化硅和纳米碳化硅的混合物60～80份，氧化铝15～25份，三氧化二铁10～15份，纳米氧化锆1～5份，氧化钙0.5～1份，氧化钾1～3份，粘土2～6份，造孔剂1～4份，烧结助剂1～3份，分散剂0.1～0.6份，其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为1～2:1。本发明的硅藻土基多孔陶瓷浆料中，由于浆料中含有硅藻土成分，能够使产品釉面光滑、质地坚硬耐久；另外，由于浆料中含有造孔剂，能够使产品具有较高的孔隙率，而且还具有较低的热导率。

Description

一种硅藻土基多孔陶瓷浆料的配方
技术领域
本发明涉及材料技术领域，特别是涉及一种硅藻土基多孔陶瓷浆料的配方。
背景技术
硅藻土是海洋或湖泊中生长的硅藻类的残骸在水底沉积，经过地质作用而逐渐形成的一种非金属矿产，它独特的硅藻壳体结构、强吸附性、大比表面积、高孔隙度、耐高温等优良性质，在现代工业中，被大量用于化工和环保领域。近年来，硅藻土以其来源广泛、价格低廉、内部具有大量微米级以下的微孔而受到人们的关注。利用硅藻土中原始孔洞的特点，釆用加入添加剂和低温煅烧工艺使原有孔道保留下来以及骨料颗粒堆积空隙，可以经济地制得孔径细小、分布均匀、成本低廉的多孔陶瓷。该材料不仅可应用在饮料、污水处理、石油化工等方面的各种超精密和无菌过滤，这种多孔材料还可作为载体。
多孔陶瓷是一种含有较多孔洞，并且是利用其孔洞结构所具有功能的一类无机非金属材料。因其具有热导率低、渗透性高、髙温稳定性和化学稳定性良好等特性，在催化、分离、轻质结构材料、生物材料等方面有着广泛应用而备受关注。目前，商品化的多孔陶瓷主要是以Al2O3、SiC，ZrO2和莫来石为主要原料制备的多孔陶瓷，虽然强度较好，但孔径较宽、较大，而且这些材料的高价格和制备过程中高的烧成温度限制了多孔陶瓷在许多方面的推广和应用。因此，寻找合适的原料，降低烧结温度和生产成本，对于多孔陶瓷的广泛应用有着积极的作用。
为此，有必要针对上述问题，提出一种硅藻土基多孔陶瓷浆料的配方，其能够解决现有技术中存在的问题。
发明内容
本发明的目的在于提供一种硅藻土基多孔陶瓷浆料的配方，以克服现有技术中的不足。
为实现上述目的，本发明提供如下技术方案：
一种硅藻土基多孔陶瓷浆料的配方，按照重量份计包括以下组成：精细硅藻土30～50份，纳米二氧化硅和纳米碳化硅的混合物60～80份，氧化铝15～25份，三氧化二铁10～15份，纳米氧化锆1～5份，氧化钙0.5～1份，氧化钾1～3份，粘土2～6份，造孔剂1～4份，烧结助剂1～3份，分散剂0.1～0.6份，其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为1～2:1。
优选的，所述纳米二氧化硅和所述纳米碳化硅的重量比为1.5:1。
优选的，所述配方还包括添加剂，所述添加剂的加入量为所述精细硅藻土重量的0.3～0.8％。
优选的，所述添加剂的加入量为所述精细硅藻土重量的0.5％。
优选的，所述配方还包括去离子水，所述去离子水的加入量为所述精细硅藻土重量的3～10％。
优选的，所述配方还包括去离子水，所述去离子水的加入量为所述精细硅藻土重量的6％。
优选的，所述烧结助剂选自高岭土、石英、长石中的一种或多种；所述分散剂为硅酸钠。
优选的，按照重量份计包括以下组成：精细硅藻土40～50份，纳米二氧化硅和纳米碳化硅的混合物70～80份，氧化铝20～25份，三氧化二铁12.5～15份，纳米氧化锆3～5份，氧化钙0.8～1份，氧化钾2～3份，粘土4～6份，造孔剂2.5～4份，烧结助剂2～3份，分散剂0.3～0.6份。
与现有技术相比，本发明的优点在于：本发明的硅藻土基多孔陶瓷浆料中，由于浆料中含有硅藻土成分，能够使产品釉面光滑、质地坚硬耐久；另外，由于浆料中含有造孔剂，能够使产品具有较高的孔隙率，而且还具有较低的热导率。
具体实施方式
本发明通过下列实施例作进一步说明：根据下述实施例，可以更好地理解本发明。然而，本领域的技术人员容易理解，实施例所描述的具体的物料比、工艺条件及其结果仅用于说明本发明，而不应当也不会限制权利要求书中所详细描述的本发明。
本发明公开一种硅藻土基多孔陶瓷浆料的配方，按照重量份计包括以下组成：精细硅藻土30～50份，纳米二氧化硅和纳米碳化硅的混合物60～80份，氧化铝15～25份，三氧化二铁10～15份，纳米氧化锆1～5份，氧化钙0.5～1份，氧化钾1～3份，粘土2～6份，造孔剂1～4份，烧结助剂1～3份，分散剂0.1～0.6份，其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为1～2:1。
其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为1.5:1。
其中，所述配方还包括添加剂，所述添加剂的加入量为所述精细硅藻土重量的0.3～0.8％，优选的，所述添加剂的加入量为所述精细硅藻土重量的0.5％。
其中，所述配方还包括去离子水，所述去离子水的加入量为所述精细硅藻土重量的3～10％，优选的，所述配方还包括去离子水，所述去离子水的加入量为所述精细硅藻土重量的6％。
其中，所述烧结助剂选自高岭土、石英、长石中的一种或多种；所述分散剂为硅酸钠。
下述以具体地实施例进行说明本发明中硅藻土基多孔陶瓷浆料的配方。
实施例1
按照重量份计包括以下组成：精细硅藻土30份，纳米二氧化硅和纳米碳化硅的混合物60份，氧化铝15份，三氧化二铁10份，纳米氧化锆1份，氧化钙0.5份，氧化钾1份，粘土2份，造孔剂1份，烧结助剂1份，分散剂0.1份，其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为1:1。
实施例2
按照重量份计包括以下组成：精细硅藻土40份，纳米二氧化硅和纳米碳化硅的混合物70份，氧化铝20份，三氧化二铁12.5份，纳米氧化锆3份，氧化钙0.8份，氧化钾2份，粘土4份，造孔剂2.5份，烧结助剂2份，分散剂0.3份，其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为1.5:1。
实施例3
按照重量份计包括以下组成：精细硅藻土50份，纳米二氧化硅和纳米碳化硅的混合物80份，氧化铝25份，三氧化二铁15份，纳米氧化锆5份，氧化钙1份，氧化钾3份，粘土6份，造孔剂4份，烧结助剂3份，分散剂0.6份，其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为2:1。
本发明的硅藻土基多孔陶瓷浆料中，由于浆料中含有硅藻土成分，能够使产品釉面光滑、质地坚硬耐久；另外，由于浆料中含有造孔剂，能够使产品具有较高的孔隙率，而且还具有较低的热导率，其孔隙率可达到52～58％，200℃时的热导率为0.12～0.13W/(m·K)。
最后，还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。

Claims (8)

1.一种硅藻土基多孔陶瓷浆料的配方，其特征在于，按照重量份计包括以下组成：精细硅藻土30～50份，纳米二氧化硅和纳米碳化硅的混合物60～80份，氧化铝15～25份，三氧化二铁10～15份，纳米氧化锆1～5份，氧化钙0.5～1份，氧化钾1～3份，粘土2～6份，造孔剂1～4份，烧结助剂1～3份，分散剂0.1～0.6份，其中，所述纳米二氧化硅和所述纳米碳化硅的重量比为1～2:1。
2.根据权利要求1所述的硅藻土基多孔陶瓷浆料的配方，其特征在于，所述纳米二氧化硅和所述纳米碳化硅的重量比为1.5:1。
3.根据权利要求1所述的硅藻土基多孔陶瓷浆料的配方，其特征在于，所述配方还包括添加剂，所述添加剂的加入量为所述精细硅藻土重量的0.3～0.8％。
4.根据权利要求3所述的硅藻土基多孔陶瓷浆料的配方，其特征在于，所述添加剂的加入量为所述精细硅藻土重量的0.5％。
5.根据权利要求1所述的硅藻土基多孔陶瓷浆料的配方，其特征在于，所述配方还包括去离子水，所述去离子水的加入量为所述精细硅藻土重量的3～10％。
6.根据权利要求5所述的硅藻土基多孔陶瓷浆料的配方，其特征在于，所述配方还包括去离子水，所述去离子水的加入量为所述精细硅藻土重量的6％。
7.根据权利要求1所述的硅藻土基多孔陶瓷浆料的配方，其特征在于，所述烧结助剂选自高岭土、石英、长石中的一种或多种；所述分散剂为硅酸钠。
8.根据权利要求1所述的硅藻土基多孔陶瓷浆料的配方，其特征在于，按照重量份计包括以下组成：精细硅藻土40～50份，纳米二氧化硅和纳米碳化硅的混合物70～80份，氧化铝20～25份，三氧化二铁12.5～15份，纳米氧化锆3～5份，氧化钙0.8～1份，氧化钾2～3份，粘土4～6份，造孔剂2.5～4份，烧结助剂2～3份，分散剂0.3～0.6份。
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CN114350327A (zh) * 2021-12-22 2022-04-15 中国建筑材料科学研究总院有限公司 复合材料及制备方法和用途

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