|本期目录/Table of Contents|

[1]邓 召,杨昌炎 *,余 洋,等.高强石膏的制备工艺研究[J].武汉工程大学学报,2017,39(05):415-419.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 002]
 DENG Zhao,YANG Changyan *,YU Yang,et al.Preparation Technology of High Strength Gypsum[J].Journal of Wuhan Institute of Technology,2017,39(05):415-419.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 002]
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高强石膏的制备工艺研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年05期
页码:
415-419
栏目:
化学与化学工程
出版日期:
2017-12-19

文章信息/Info

Title:
Preparation Technology of High Strength Gypsum
文章编号:
20170502
作者:
邓 召12杨昌炎12 *余 洋12周 盼12丁一刚12
1. 武汉工程大学化工与制药学院,湖北 武汉 430205; 2. 绿色化工过程教育部重点实验室(武汉工程大学),湖北 武汉 430205
Author(s):
DENG Zhao 12 YANG Changyan12 * YU Yang 12ZHOU Pan 12DING Yigang 12
1. School of Chemical and Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430205,China; 2. Key Laboratory of Green Chemical Process (Wuhan Institute of Technology),Ministry of Education,Wuhan 430205,China
关键词:
天然石膏高强石膏加压水热法抗压强度
Keywords:
nature gypsum high strength gypsum pressurized-hydrothermal method compressive strength
分类号:
TQ177.3+ 2
DOI:
10. 3969/j. issn. 1674?2869. 2017. 05. 002
文献标志码:
A
摘要:
以天然石膏为原料采用加压水热法制备高强石膏,考察了水热温度、水热时间、膏水质量比和干燥温度对高强石膏力学性能的影响. 利用X射线衍射对不同条件下制备得到的高强石膏进行物相和结晶度分析,得出了天然石膏制备高强石膏最佳工艺. 结果表明:在水热温度为120℃~150℃时,高强石膏抗压强度随着水热温度的升高而减小;在水热温度120℃条件下,膏水质量比的增加使高强石膏抗压强度呈先增加后减小的变化趋势;水热时间、干燥温度对高强石膏的抗压强度影响较小;水热温度120℃、水热时间1h、膏水质量比50%、干燥温度110℃的条件下制备出的高强石膏抗压强度达到42.41MPa,符合高强石膏JC/T 2038-2010 强度标准.
Abstract:
High strength gypsum was prepared by pressurized-hydrothermal method,using nature gypsum as raw materials. Effects of hydrothermal temperature and time, the mass ratio between gypsum and water, and drying temperature on mechanical properties of high strength gypsum were investigated. The phase and crystallinity of high strength gypsum prepared under different conditions were characterized by X-ray diffraction.The optimum technology of preparaing high strength gypsum was obtained by nature gypsum. The results show that, the compressive strength of high strength gypsum decreases with the hydrothermal temperature rising from 120℃ to 150℃,the compressive strength of high strength gypsum increases first and then decreases with the mass ratio of gypsum/water increasing when hydrothermal temperature keeps at 120 ℃,However,the hydrothermal time and drying temperature have little effect on the compressive strength of high strength gypsum. The compressive strength of high strength gypsum can reach 42.41MPa at hydrothermal temperature of 120 ℃, hydrothermal time of 1 h,mass ratio of gypsum/water of 1∶1, and drying temperature of 110 ℃,conforming to the standard JC/T 2038-2010.

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备注/Memo

备注/Memo:
收稿日期:2016-12-31 作者简介:邓 召,硕士研究生. E-mail:279711231@qq.com
更新日期/Last Update: 2017-10-24