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[1]杨 舟,徐梦婷,刘芯琪,等.增强隔热型改性地质聚合物的制备与性能研究[J].武汉工程大学学报,2025,47(05):508-515.[doi:10.19843/j.cnki.CN42-1779/TQ.202412003]
　YANG Zhou,XU Mengting,LIU Xinqi,et al.Preparation and properties of modified geopolymer with enhanced thermal insulation[J].Journal of Wuhan Institute of Technology,2025,47(05):508-515.[doi:10.19843/j.cnki.CN42-1779/TQ.202412003]
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增强隔热型改性地质聚合物的制备与性能研究
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
47
期数:
2025年05期
页码:
508-515
栏目:
现代大化工
出版日期:
2025-10-31

文章信息/Info

Title:
Preparation and properties of modified geopolymer with enhanced thermal insulation


文章编号:
1674 - 2869（2025）05 - 0508 - 08
作者:
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
School of Materials Science and Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
Keywords:
分类号:
TU528
DOI:
10.19843/j.cnki.CN42-1779/TQ.202412003
文献标志码:
A
摘要:
传统波特兰水泥的生产过程会排放大量温室气体并消耗大量能源，为了开发新型绿色、节能胶凝材料，将硅烷偶联剂（KH550）改性的钛酸钾晶须（PTW）和空心玻璃微珠（HGM）掺入地质聚合物（GP）中制备了一种新型隔热GP，通过导热系数测定仪、万能材料试验机、X射线衍射仪、傅里叶变换红外光谱仪、扫描电子显微镜等仪器对其导热系数、机械性能以及微观结构进行了研究。结果表明：当改性PTW的质量分数为2%时，GP的抗压强度可达到57.1 MPa，最低导热系数可降至0.129 W/(m·K)，与未改性样品相比，抗压强度提高了49.08%，导热系数降低了69.72%。当改性HGM的质量分数为25%时，GP最低导热系数可降至0.095 W/(m·K)，降低了78.70%，抗压强度可达7.2 MPa。此外，当养护龄期达到28 d时，GP固化完全，力学性能和隔热性能不再发生显著变化。可见，掺入由KH550改性的PTW和HGM后，GP的隔热性能和力学性能明显提高，并且随养护龄期的增加而提升。最后，揭示了PTW的桥接作用以及HGM在GP内部形成的微孔结构和热反射作用。
Abstract:
The traditional production process of Portland cement emits a large amount of greenhouse gases and consumes a great deal of energy. To develop new types of green and energy-efficient cementitious materials，in this study a novel thermal insulating geopolymer （GP） was prepared by incorporating potassium titanate whiskers （PTW） and hollow glass microspheres （HGM） modified with silane coupling agent （KH550） into GP. Its thermal conductivity，mechanical properties，and microstructure were studied using a thermal conductivity tester, a universal material testing machine, an X-ray diffractometer, a Fourier transform infrared spectrometer, a scanning electron microscope. The results showed that when the mass fraction of modified PTW was 2%，the compressive strength of GP reached 57.1 MPa，and its lowest thermal conductivity was reduced to 0.129 W/(m·K). Compared with the unmodified sample，its compressive strength increased by 49.08%，and its thermal conductivity by 69.72%. When the mass fraction of modified HGM was 25%，its lowest thermal conductivity was reduced to 0.095 W/(m·K)，78.70% lower than the unmodified sample，and its compressive strength reached 7.2 MPa. After 28 days of curing, the GP completely solidified, and its mechanical properties and thermal insulation performance stabilized. The bridging effect of PTW and the microporous structure and heat-reflection effect formed by HGM inside GP were revealed.

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相似文献/References:

[1]鲁博文,羿庄城,吴艳光*,等.几种填料对偏高岭土-粉煤灰基地质聚合物的增强改性[J].武汉工程大学学报,2020,42(03):293.[doi:10.19843/j.cnki.CN42-1779/TQ.201909013]
　LU Bowen,YI Zhuangcheng,WU Yanguang*,et al.Reinforcement and Modification of Metakaolin-Fly Ash Based Geopolymer with Several Fillers[J].Journal of Wuhan Institute of Technology,2020,42(05):293.[doi:10.19843/j.cnki.CN42-1779/TQ.201909013]
[2]柴　宽,高　佳,李小刚,等.钛酸钾晶须改性偏高岭土基多孔地质聚合物的制备与性能[J].武汉工程大学学报,2021,43(02):158.[doi:10.19843/j.cnki.CN42-1779/TQ.202106005]
　CHAI Kuan,GAO Jia,LI Xiaogang,et al.Preparation and Properties of Metakaolin Based Porous Geopolymer Modified by Potassium Titanate Whisker[J].Journal of Wuhan Institute of Technology,2021,43(05):158.[doi:10.19843/j.cnki.CN42-1779/TQ.202106005]

备注/Memo

备注/Memo:
收稿日期：2024-12-03
基金项目：湖北省自然科学基金（2020CFB649）
作者简介：杨 舟，硕士研究生。Email：13477690284@163.com
*通信作者：吴艳光，博士，副教授。Email：wygddxyz@163.com
引文格式：杨舟，徐梦婷，刘芯琪，等. 增强隔热型改性地质聚合物的制备与性能研究［J］. 武汉工程大学学报，2025，47（5）：508-515.

更新日期/Last Update: 2025-11-03