CN107285789A - 一种熔融石英梯度孔泡沫陶瓷的制备方法 - Google Patents

一种熔融石英梯度孔泡沫陶瓷的制备方法 Download PDF

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CN107285789A
CN107285789A CN201710671166.XA CN201710671166A CN107285789A CN 107285789 A CN107285789 A CN 107285789A CN 201710671166 A CN201710671166 A CN 201710671166A CN 107285789 A CN107285789 A CN 107285789A
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季全
季一全
汤佳
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Wuhu Whole Technology Co Ltd
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Abstract

本发明公开一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：所述制备方法包括如下步骤：（1）将熔融石英粉、水、水溶性树脂、分散剂搅拌2—4小时，得到熔融石英浆料；（2）将步骤（1）的浆料浸渍在聚氨酯海绵上，对辊挤出多余浆料，得到素坯，放入烘箱中干燥后得到干燥素坯；（3）将熔融石英陶瓷粉、水、分散剂和稳泡剂球磨3—6小时得到浆料，加入发泡剂，搅拌发泡得到泡沫浆料；（4）将步骤（3）的泡沫浆料涂覆在步骤（2）制备的干燥素坯，然后放入烘箱中干燥后升温到1100—1250℃烧结得到梯度孔熔融石英泡沫陶瓷；本发明制备的熔融石英梯度孔泡沫陶瓷实现孔径毫米级到微米级梯度变化，与传统泡沫陶瓷过滤片相比，具有更高的过滤精细、更强吸附杂质能力。

Description

一种熔融石英梯度孔泡沫陶瓷的制备方法
技术领域
本发明属于石英制备领域，尤其涉及一种熔融石英梯度孔泡沫陶瓷的制备方法。
背景技术
熔融石英陶瓷具有热膨胀系数小（0.54×10-6℃-1），热震稳定性好（1300℃到20℃冷热循环30多次保持不裂），化学稳定好，耐酸性好（氢氟酸、浓磷酸除外）等特点，在冶金工业、航天工业等领域应用广泛。
梯度孔泡沫陶瓷是陶瓷孔径随厚度方向作有规律的放大或缩小的泡沫陶瓷材料，分为连续气孔和阶梯气孔两种。由于其孔径呈梯度变化，与传统泡沫陶瓷过滤器相比，其过滤阻力更低，分离效率更高，过滤更为精细，更具应用前景。
发明内容
针对上述技术现状，提供一种熔融石英梯度孔泡沫陶瓷的制备方法。
本发明采用如下技术方案如下：
一种熔融石英梯度孔泡沫陶瓷的制备方法，所述制备方法包括如下步骤：
（1）将熔融石英粉、水、水溶性树脂、分散剂搅拌2—4小时，得到熔融石英浆料；
（2）将步骤（1）的浆料浸渍在聚氨酯海绵上，对辊挤出多余浆料，得到素坯，放入烘箱中干燥后得到干燥素坯；
（3）将熔融石英陶瓷粉、水、分散剂和稳泡剂球磨3—6小时得到浆料，加入发泡剂，搅拌发泡得到泡沫浆料；
（4）将步骤（3）的泡沫浆料涂覆在步骤（2）制备的干燥素坯，然后放入烘箱中干燥后升温到1100—1250℃烧结得到梯度孔熔融石英泡沫陶瓷。
所述步骤（1）中水的用量是熔融石英粉质量的20—30%。
所述步骤（1）水溶性树脂为水性环氧树脂、水性氨基树脂或水性酚醛树脂中的一种，水溶性树脂的用量是熔融石英粉质量的4—8%。
步骤（3）所述的水的用量是熔融石英粉质量的25—33%。
步骤（3）所述的稳泡剂是淀粉、糊精、羧甲基纤维素钠中的一种，稳泡剂的用量是熔融石英粉质量的0.5—3%。
步骤（2）所述的发泡剂是十二烷基硫酸钠、十二烷基硫酸铵、十二烷基苯磺酸钠中的一种，发泡剂的用量是熔融石英粉质量的1—2%。
所述的分散剂为六偏磷酸钠、聚乙二醇基聚合物FS10、聚羧酸脂基聚合物FS20中的一种，分散剂的用量是熔融石英粉的0.5—1%。
本发明有如下有益效果：
本发明制备的熔融石英梯度孔泡沫陶瓷实现孔径毫米级到微米级梯度变化即孔径0.5—2mm到50—200μm梯度变化，与传统泡沫陶瓷过滤片（孔径通常0.5—2mm）相比，具有吸附杂质能力更强、过滤精细、分离效率高等特点，特别适用于冶金行业熔融金属超精细过滤等。
具体实施方式
下面结合具体实施方式对本发明做进一步的说明：
一种熔融石英梯度孔泡沫陶瓷的制备方法，所述制备方法包括如下步骤：
（1）将熔融石英粉、水、水溶性树脂、分散剂搅拌2—4小时，得到熔融石英浆料；
（2）将步骤（1）的浆料浸渍在聚氨酯海绵上，对辊挤出多余浆料，得到素坯，放入烘箱中干燥后得到干燥素坯；
（3）将熔融石英陶瓷粉、水、分散剂和稳泡剂球磨3—6小时得到浆料，加入发泡剂，搅拌发泡得到泡沫浆料；
（4）将步骤（3）的泡沫浆料涂覆在步骤（2）制备的干燥素坯，然后放入烘箱中干燥后升温到1100—1250℃烧结得到梯度孔熔融石英泡沫陶瓷。
所述步骤（1）中水的用量是熔融石英粉质量的20—30%。
所述步骤（1）水溶性树脂为水性环氧树脂、水性氨基树脂或水性酚醛树脂中的一种，水溶性树脂的用量是熔融石英粉质量的4—8%。
步骤（3）所述的水的用量是熔融石英粉质量的25—33%。
步骤（3）所述的稳泡剂是淀粉、糊精、羧甲基纤维素钠中的一种，稳泡剂的用量是熔融石英粉质量的0.5—3%。
步骤（2）所述的发泡剂是十二烷基硫酸钠、十二烷基硫酸铵、十二烷基苯磺酸钠中的一种，发泡剂的用量是熔融石英粉质量的1—2%。
所述的分散剂为六偏磷酸钠、聚乙二醇基聚合物FS10、聚羧酸脂基聚合物FS20中的一种，分散剂的用量是熔融石英粉的0.5—1%。
实施例1
首先称取2000g熔融石英粉，600g水，80g水性环氧树脂和10g六偏磷酸钠，放入容器内搅拌6小时得到浆料。选取50PPI的聚氨酯海绵，加工成φ80mm×10mm的圆片，将圆片浸入浆料，充分润湿，采用滚压工艺挤出多余浆料得到素坯，放入烘箱烘干得到干燥素坯。
然后称取1000g熔融石英粉，250g水，20g糊精和5g六偏磷酸钠放入球磨罐中，球磨6小时得到浆料。然后加入10g十二烷基硫酸钠，搅拌发泡得到发泡浆料，将发泡浆料涂覆在素坯上，厚度1mm。
最后坯体干燥后放入烧成设备内，以0.8℃/min升温到550℃，保温2小时，以5℃/min升温到1100℃，保温6小时得到熔融石英梯度孔陶瓷。熔融石英梯度孔泡沫陶瓷以连通孔为主，孔径从50PPI到50μm梯度变化。
实施例2
首先称取2000g熔融石英粉，400g水，100g水性酚醛树脂和16g聚乙二醇基聚合物FS10，放入容器内搅拌4小时得到浆料。选取30PPI的聚氨酯海绵，加工成φ80mm×10mm的圆片，将圆片浸入浆料，充分润湿，采用滚压工艺挤出多余浆料得到素坯，放入烘箱烘干得到干燥素坯。
然后称取1000g熔融石英粉，300g水，30g糊精和8g聚乙二醇基聚合物FS10放入球磨罐中，球磨4小时得到浆料。然后加入15g十二烷基硫酸钠，搅拌发泡得到发泡浆料，将发泡浆料涂覆在素坯上，厚度3mm。
最后坯体干燥后放入烧成设备内，以0.5℃/min升温到600℃，保温1.5小时，以8℃/min升温到1200℃，保温4小时得到熔融石英梯度孔陶瓷。熔融石英梯度孔泡沫陶瓷以连通孔为主，孔径从30PPI到100μm梯度变化。
实施例3
首先称取2000g熔融石英粉，500g水，160g水性氨基树脂和20g聚羧酸脂基聚合物FS20，放入容器内搅拌2小时得到浆料。选取20PPI的聚氨酯海绵，加工成φ80mm×10mm的圆片，将圆片浸入浆料，充分润湿，采用滚压工艺挤出多余浆料得到素坯，放入烘箱烘干得到干燥素坯。
然后称取1000g熔融石英粉，660g水，5g羧甲基纤维素钠和10g聚羧酸脂基聚合物FS20放入球磨罐中，球磨3小时得到浆料。然后加入20g十二烷基硫酸钠，搅拌发泡得到发泡浆料，将发泡浆料涂覆在素坯上，厚度5mm。
最后坯体干燥后放入烧成设备内，以1℃/min升温到650℃，保温1小时，以10℃/min升温到1250℃，保温2小时得到熔融石英梯度孔陶瓷。熔融石英梯度孔泡沫陶瓷以连通孔为主，孔径从20PPI到200μm梯度变化。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (7)

1.一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：所述制备方法包括如下步骤：
（1）将熔融石英粉、水、水溶性树脂、分散剂搅拌2—4小时，得到熔融石英浆料；
（2）将步骤（1）的浆料浸渍在聚氨酯海绵上，对辊挤出多余浆料，得到素坯，放入烘箱中干燥后得到干燥素坯；
（3）将熔融石英陶瓷粉、水、分散剂和稳泡剂球磨3—6小时得到浆料，加入发泡剂，搅拌发泡得到泡沫浆料；
（4）将步骤（3）的泡沫浆料涂覆在步骤（2）制备的干燥素坯，然后放入烘箱中干燥后升温到1100—1250℃烧结得到梯度孔熔融石英泡沫陶瓷。
2.根据权利要求1所述的一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：所述步骤（1）中水的用量是熔融石英粉质量的20—30%。
3.根据权利要求1所述的一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：所述步骤（1）水溶性树脂为水性环氧树脂、水性氨基树脂或水性酚醛树脂中的一种，水溶性树脂的用量是熔融石英粉质量的4—8%。
4.根据权利要求1所述的一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：步骤（3）所述的水的用量是熔融石英粉质量的25—33%。
5.根据权利要求1所述的一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：步骤（3）所述的稳泡剂是淀粉、糊精、羧甲基纤维素钠中的一种，稳泡剂的用量是熔融石英粉质量的0.5—3%。
6.根据权利要求1所述的一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：步骤（2）所述的发泡剂是十二烷基硫酸钠、十二烷基硫酸铵、十二烷基苯磺酸钠中的一种，发泡剂的用量是熔融石英粉质量的1—2%。
7.根据权利要求1所述的一种熔融石英梯度孔泡沫陶瓷的制备方法，其特征在于：所述的分散剂为六偏磷酸钠、聚乙二醇基聚合物FS10、聚羧酸脂基聚合物FS20中的一种，分散剂的用量是熔融石英粉的0.5—1%。
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RU2684628C1 (ru) * 2018-05-10 2019-04-10 федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" (НГТУ) Способ изготовления фильтрующей пенокерамики для обработки алюминиевых расплавов
CN110144251A (zh) * 2019-06-27 2019-08-20 黄河水利职业技术学院 一种基于水合原理的垃圾填埋气提纯方法
CN113651634A (zh) * 2021-08-11 2021-11-16 吉林大学 一种防泄漏的复合储热材料的制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2684628C1 (ru) * 2018-05-10 2019-04-10 федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" (НГТУ) Способ изготовления фильтрующей пенокерамики для обработки алюминиевых расплавов
CN110144251A (zh) * 2019-06-27 2019-08-20 黄河水利职业技术学院 一种基于水合原理的垃圾填埋气提纯方法
CN110144251B (zh) * 2019-06-27 2020-12-25 黄河水利职业技术学院 一种基于水合原理的垃圾填埋气提纯方法
CN113651634A (zh) * 2021-08-11 2021-11-16 吉林大学 一种防泄漏的复合储热材料的制备方法

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