Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a thermosensitive aerogel cement and a preparation method thereof. The thermosensitive aerogel cement comprises , by weight, 40-50 parts of thermosensitive high-molecular polymer particles, 20-25 parts of silicon dioxide nanometer aerogel, 20-30 parts of aluminum sec-butoxide, 10-15 parts of fly ash, 10-15 parts of nanocrystal, 3-5 parts of a cross-linking agent, 3-5 parts of a persulfate initiator, 0.5-1 part of a water reducing agent, and 0.2-0.5 part of a coagulation accelerator. In the preparation process, aluminum sec-butoxide is adopted as a raw material and catalyzed by nitric acid to prepare nano-reinforced aluminum oxide aerogel, and the nano-reinforced aluminum oxide aerogel is coupled with silicon dioxide aerogel to further improve the porosity of the cement; and the thermosensitive high-molecular polymer prepared by synthesis can effectively perform thermal response and is coupled with the silicon dioxide aerogel to perform volcanic ash reaction, so the influence of the thermosensitive high-molecular polymer on the mechanical degree is reduced, and the finished product has toughness and good mechanical properties and can respond to temperature change in time and cope with the influence of the temperature change.
本发明提供一种热敏气凝胶水泥及其制备方法，按重量份计包括以下组分：热敏高分子聚合物颗粒40份～50份；二氧化硅纳米气凝胶20份～25份；仲丁醇铝20份～30份；粉煤灰10份～15份；纳米晶体10份～15份；交联剂3份～5份；过硫酸盐引发剂3份～5份；减水剂0.5份～1份；促凝剂0.2份～0.5份。在制备过程中采用仲丁醇铝为原料通过硝酸催化，制成纳米增强的氧化铝气凝胶并与二氧化硅气凝胶耦合进一步提高水泥的孔隙率；通过合成制备热敏高分子聚合物可以有效进行热响应并且与二氧化硅气凝胶耦合进行火山灰反应，降低其对机械程度的影响，其成品既具有韧性同时机械性能良好并能够及时响应温度变化并应对其影响。
The invention provides a thermosensitive aerogel cement and a preparation method thereof. The thermosensitive aerogel cement comprises , by weight, 40-50 parts of thermosensitive high-molecular polymer particles, 20-25 parts of silicon dioxide nanometer aerogel, 20-30 parts of aluminum sec-butoxide, 10-15 parts of fly ash, 10-15 parts of nanocrystal, 3-5 parts of a cross-linking agent, 3-5 parts of a persulfate initiator, 0.5-1 part of a water reducing agent, and 0.2-0.5 part of a coagulation accelerator. In the preparation process, aluminum sec-butoxide is adopted as a raw material and catalyzed by nitric acid to prepare nano-reinforced aluminum oxide aerogel, and the nano-reinforced aluminum oxide aerogel is coupled with silicon dioxide aerogel to further improve the porosity of the cement; and the thermosensitive high-molecular polymer prepared by synthesis can effectively perform thermal response and is coupled with the silicon dioxide aerogel to perform volcanic ash reaction, so the influence of the thermosensitive high-molecular polymer on the mechanical degree is reduced, and the finished product has toughness and good mechanical properties and can respond to temperature change in time and cope with the influence of the temperature change.
本发明提供一种热敏气凝胶水泥及其制备方法，按重量份计包括以下组分：热敏高分子聚合物颗粒40份～50份；二氧化硅纳米气凝胶20份～25份；仲丁醇铝20份～30份；粉煤灰10份～15份；纳米晶体10份～15份；交联剂3份～5份；过硫酸盐引发剂3份～5份；减水剂0.5份～1份；促凝剂0.2份～0.5份。在制备过程中采用仲丁醇铝为原料通过硝酸催化，制成纳米增强的氧化铝气凝胶并与二氧化硅气凝胶耦合进一步提高水泥的孔隙率；通过合成制备热敏高分子聚合物可以有效进行热响应并且与二氧化硅气凝胶耦合进行火山灰反应，降低其对机械程度的影响，其成品既具有韧性同时机械性能良好并能够及时响应温度变化并应对其影响。
Thermosensitive aerogel cement and preparation method thereof
一种热敏气凝胶水泥及其制备方法
YUAN WU (Autor:in)
03.07.2020
Patent
Elektronische Ressource
Chinesisch
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