烧成工艺对花岗岩基轻质隔热材料性能的影响

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (10): 3226-3231.

烧成工艺对花岗岩基轻质隔热材料性能的影响

潘孟博, 李祥, 戚文豪, 杜浩然, 吴晓鹏, 赵飞, 马成良

郑州大学材料科学与工程学院,河南省高温功能材料重点实验室,郑州 450052

收稿日期:2021-07-15 修回日期:2021-08-04 出版日期:2021-10-15 发布日期:2021-11-11
通讯作者: 马成良,博士,教授。E-mail:machengliang@zzu.edu.cn
作者简介:潘孟博(1996—),男,硕士研究生。主要从事耐火材料的研究。E-mail:2302957761@qq.com
基金资助:
国家自然科学基金(51472220,51872265);“十三五”国家重点研发计划(2017YFB0310701)

Effect of Firing Process on Performance of Granite-Based Lightweight Thermal Insulation Materials

PAN Mengbo, LI Xiang, QI Wenhao, DU Haoran, WU Xiaopeng, ZHAO Fei, MA Chengliang

Henan Key Laboratory of High Temperature Functional Ceramics, School of Material Science and Engineering, Zhengzhou University, Zhengzhou 450052, China

Received:2021-07-15 Revised:2021-08-04 Online:2021-10-15 Published:2021-11-11

摘要/Abstract

摘要： 以花岗岩废料、黏土、长石为主要原料制备了花岗岩基轻质隔热材料。研究了不同烧成工艺制度(烧成温度、保温时间、升温速率)对该隔热材料性能的影响,确定最优烧成制度,制备出表观密度小、抗压强度高、常温导热系数小的高性能隔热材料。结果表明,以5 ℃/min从常温升至1 000 ℃,再以3 ℃/min升至1 200 ℃并保温30 min,在此烧成工艺制度下制备的隔热材料试样的表观密度为0.6 g/cm³,常温抗压强度18.11 MPa,常温导热系数为0.2 W/(m·K),综合性能最好。

关键词: 花岗岩废料, 轻质隔热材料, 表观密度, 导热系数, 烧成温度, 保温时间, 升温速率

Abstract: Granite waste, clay and feldspar as the main raw materials were used to make granite-based lightweight thermal insulation materials. The effects of different firing process factors (firing temperature, holding time, heating rate) on the performance of the thermal insulation material were investigated. The high-performance thermal insulation materials with low apparent density, high compressive strength and low thermal conductivity at room temperature were prepared at optimal firing process. The results show that the optimal firing process is rising from room temperatureto 1 000 ℃ at 5 ℃/min, and then to 1 200 ℃ at 3 ℃/min for 30 min. The apparent density, the compressive strength at room temperature, and the thermal conductivity at room temperature of the thermal insulation material prepared at optimal firing process is 0.6 g/cm³, 18.11 MPa and 0.2 W/(m·K), respectively. The overall performance is the best.

Key words: granite waste, lightweight thermal insulation material, apparent density, thermal conductivity, firing temperature, holding time, heating rate

中图分类号:

TQ175.7

潘孟博, 李祥, 戚文豪, 杜浩然, 吴晓鹏, 赵飞, 马成良. 烧成工艺对花岗岩基轻质隔热材料性能的影响[J]. 硅酸盐通报, 2021, 40(10): 3226-3231.

PAN Mengbo, LI Xiang, QI Wenhao, DU Haoran, WU Xiaopeng, ZHAO Fei, MA Chengliang. Effect of Firing Process on Performance of Granite-Based Lightweight Thermal Insulation Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(10): 3226-3231.

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