| 建筑幕墙密封用多孔硅酮密封胶的制备及保温性能研究 |
| Preparation and Thermal Insulation Properties of Porous Silicone Sealant for Building Curtain Wall Sealing |
| 投稿时间：2023-11-09 修订日期：2023-11-09 |
| DOI：10.12136/j.issn.1000-890X.2024.05.0365 |
| 中文关键词: 多孔硅酮密封胶 多孔硅藻土 建筑幕墙 表观密度 热导率 |
| 英文关键词: porous silicone sealant porous diatomite building curtain wall apparent density thermal conductivity |
| 基金项目:2022年度广西高校中青年教师科研基础能力提升项目（2022KY1291） |
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| 中文摘要: |
| 以硅橡胶为基料，多孔硅藻土为填料，制备建筑幕墙密封用多孔硅酮密封胶，并研究其保温性能。结果表明：在一定程度上增大多孔硅藻土用量和延长养护时间会增大多孔硅酮密封胶的表观密度，当多孔硅藻土用量为15份、养护时间为14 d时多孔硅酮密封胶的表观密度较大，孔隙结构调控到了相对较佳状态，保温性能较好；过度延长养护时间、采用水光试验箱养护方式和增大含水率会增大多孔硅酮密封胶的热导率，降低保温性能，当普通养护1～10 d时多孔硅酮密封胶的热导率较小，具有较为理想的保温效果。 |
| 英文摘要: |
| Using silicone rubber as the base material and porous diatomite as the filler，the porous silicone sealant for building curtain wall sealing was prepared and its thermal insulation performance was studied.The results showed that increasing the dosage of porous diatomite and prolonging the curing time to a certain extent could increase the apparent density of the porous silicone sealant.When the dosage of porous diatomite was 15 phr and the curing time was 14 d，the apparent density of the porous silicone sealant was larger，and the pore structure was adjusted to a relatively optimal state，thereby improving the thermal insulation performance.Excessive prolonging the curing time，using a water and light test chamber curing method，and increasing the moisture content could increase the thermal conductivity of the porous silicone sealant and reduce the thermal insulation performance.When normally cured for 1～10 days，the thermal conductivity of the porous silicone sealant was lower，and an ideal thermal insulation effect was obtained. |
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