January 2, 2021 Journal article Closed Access

Yi Wang; Hongqiang Li; Ting Zheng; Jinghao Yan; Xiaohong Zhang; Yingjie Qiao; Xiaodong Wang; Li Xinyu; Paolo Colombo; Chengying Bai

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  "doi": "10.1080/21870764.2021.1873482", 
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    "creators": [
      {
        "name": "Yi Wang"
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      {
        "name": "Hongqiang Li"
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      {
        "name": "Ting Zheng"
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      {
        "name": "Jinghao Yan"
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      {
        "name": "Xiaohong Zhang"
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      {
        "name": "Yingjie Qiao"
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      {
        "name": "Xiaodong Wang"
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      {
        "name": "Li Xinyu"
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      {
        "name": "Paolo Colombo"
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      {
        "name": "Chengying Bai"
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    "description": "Metakaolin-based porous geopolymers were synthesized by direct foaming using various surfactants/stabilizing agents with or without chemical pore-forming agent (hydrogen peroxide). The effects of surfactants/stabilizing agents and solid loading on their pore morphology, density, porosity, and some properties, such as thermal conductivity and compression strength, were investigated. Experimental data and different theoretical models were successfully applied to evaluate both compression strength (\u03c3) and effective thermal conductivity (\u03bb) as a function of porosity (\u03b5). Porous geopolymers with higher \u03b5 presented both a lower value of mechanical strength and improved thermal conductivity performance. The variation of \u03c3 with \u03b5 could be well described by the minimum solid area (MSA) model, and the variation of \u03bb with \u03b5 was found to be more accurately described using a universal model derived from the five basic models.", 
    "doi": "10.1080/21870764.2021.1873482", 
    "keywords": [
      "Ceramics and Composites"
    ], 
    "language": "eng", 
    "license": {
      "id": "CC-BY-4.0"
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    "notes": "", 
    "publication_date": "2021-01-02", 
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    "title": "Effects of surfactants/stabilizing agents on the microstructure and properties of porous geopolymers by direct foaming"
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