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Low-cost high-strength polybenzoxazine aerogel heat-insulation composite material and preparation method thereof
The invention discloses a low-cost high-strength polybenzoxazine aerogel heat-insulation composite material and a preparation method thereof. The preparation process is simple, water is used as a replacement solvent, normal-pressure drying is performed, the preparation process is environment-friendly and low in cost, and the whole process is mild in reaction condition, safe, low in environmental requirement, green, low-carbon and environment-friendly. The low-cost and high-strength polybenzoxazine aerogel heat-insulation composite material is of a nano porous network structure and has the characteristics of low density and ultralow heat conductivity, the density of the polybenzoxazine aerogel heat-insulation composite material is 0.25-0.49 g/cm < 3 >, the normal-temperature heat conductivity coefficient is 0.0304-0.0426 W/m.K, the 1100 DEG C heat conductivity is 0.065-0.079 W/m.K, the 1100 DEG C residual weight rate is 80-85%, and the polybenzoxazine aerogel heat-insulation composite material has excellent heat insulation performance. And the compression strength of 3% deformation quantity is 4.93 to 9.88 MPa, and the bending strength is 4.89 to 6.91 MPa.
本发明公开了一种低成本高强度聚苯并噁嗪气凝胶隔热复合材料及其制备方法，制备工艺简单，以水为置换溶剂，常压干燥，制备过程环保、成本低，整个工艺反应条件温和、安全，对环境要求较低，绿色低碳环保。所述的一种低成本高强度聚苯并噁嗪气凝胶隔热复合材料，为纳米多孔网络结构，具有低密度、超低热导率的特点，所述的聚苯并噁嗪气凝胶隔热复合材料的密度为0.25‑0.49g/cm3，常温导热系数为0.0304‑0.0426W/m·K，1100℃热导率为0.065‑0.079W/m·K，1100℃残重率80％‑85％，3％形变量的压缩强度为4.93‑9.88MPa,弯曲强度为4.89‑6.91MPa。
Low-cost high-strength polybenzoxazine aerogel heat-insulation composite material and preparation method thereof
The invention discloses a low-cost high-strength polybenzoxazine aerogel heat-insulation composite material and a preparation method thereof. The preparation process is simple, water is used as a replacement solvent, normal-pressure drying is performed, the preparation process is environment-friendly and low in cost, and the whole process is mild in reaction condition, safe, low in environmental requirement, green, low-carbon and environment-friendly. The low-cost and high-strength polybenzoxazine aerogel heat-insulation composite material is of a nano porous network structure and has the characteristics of low density and ultralow heat conductivity, the density of the polybenzoxazine aerogel heat-insulation composite material is 0.25-0.49 g/cm < 3 >, the normal-temperature heat conductivity coefficient is 0.0304-0.0426 W/m.K, the 1100 DEG C heat conductivity is 0.065-0.079 W/m.K, the 1100 DEG C residual weight rate is 80-85%, and the polybenzoxazine aerogel heat-insulation composite material has excellent heat insulation performance. And the compression strength of 3% deformation quantity is 4.93 to 9.88 MPa, and the bending strength is 4.89 to 6.91 MPa.
本发明公开了一种低成本高强度聚苯并噁嗪气凝胶隔热复合材料及其制备方法，制备工艺简单，以水为置换溶剂，常压干燥，制备过程环保、成本低，整个工艺反应条件温和、安全，对环境要求较低，绿色低碳环保。所述的一种低成本高强度聚苯并噁嗪气凝胶隔热复合材料，为纳米多孔网络结构，具有低密度、超低热导率的特点，所述的聚苯并噁嗪气凝胶隔热复合材料的密度为0.25‑0.49g/cm3，常温导热系数为0.0304‑0.0426W/m·K，1100℃热导率为0.065‑0.079W/m·K，1100℃残重率80％‑85％，3％形变量的压缩强度为4.93‑9.88MPa,弯曲强度为4.89‑6.91MPa。
Low-cost high-strength polybenzoxazine aerogel heat-insulation composite material and preparation method thereof
一种低成本高强度聚苯并噁嗪气凝胶隔热复合材料及其制备方法
LI LIANGJUN (author) / WANG XIN (author) / FENG JUNZONG (author) / HU YIJIE (author) / FENG JIAN (author) / JIANG YONGGANG (author) / PAN XIANG'E (author)
2024-10-29
Patent
Electronic Resource
Chinese
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