Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal shock resistant fiber reinforced aerogel thermal insulation material and preparation method thereof
The invention discloses a thermal shock resistant fiber reinforced aerogel thermal insulation material. The thermal shock resistant fiber reinforced aerogel thermal insulation material is prepared from aerogel powder, refractory fibers, an infrared opacifying agent, low-expansion/negative-expansion material powder, a silane coupling agent and an organic binding agent. On the basis of the fiber-reinforced aerogel thermal insulation material, the low-expansion/negative-expansion powder is added, and the addition amount of the raw materials is adjusted and controlled, so that the high thermal expansion coefficient caused by the refractory fiber and the infrared opacifying agent is balanced, the expansion coefficient of the aerogel thermal insulation material is ensured to be 3.0 * 10 <-6 >/K or below, and the thermal expansion coefficient of the aerogel thermal insulation material is ensured to be 3.0 * 10 <-6 >/K or below. The strength of the aerogel thermal insulation material is ensured, and the bending strength of the aerogel thermal insulation material is ensured to be 0.1 MPa or above, so that the thermal insulation material disclosed by the invention has relatively high use temperature and good thermal shock resistance.
本发明公开一种耐热冲击纤维增强气凝胶隔热材料，其制备原料包括气凝胶粉体、耐火纤维、红外遮光剂、低膨胀/负膨胀材料粉体、硅烷偶联剂和有机结合剂。本发明在纤维增强气凝胶隔热材料的基础上，加入了低膨胀/负膨胀粉体，并通过调整控制各原料之间的添加量，既平衡了来自耐火纤维和红外遮光剂带来的高热膨胀系数，使所述气凝胶隔热材料的膨胀系数保证在3.0×10‑6/K以下，又保证了气凝胶隔热材料的强度，使所述气凝胶隔热材料的抗弯折强度保证在0.1MPa以上，从而使得本发明的隔热材料的具有较高的使用温度和良好的耐热冲击性。
Thermal shock resistant fiber reinforced aerogel thermal insulation material and preparation method thereof
The invention discloses a thermal shock resistant fiber reinforced aerogel thermal insulation material. The thermal shock resistant fiber reinforced aerogel thermal insulation material is prepared from aerogel powder, refractory fibers, an infrared opacifying agent, low-expansion/negative-expansion material powder, a silane coupling agent and an organic binding agent. On the basis of the fiber-reinforced aerogel thermal insulation material, the low-expansion/negative-expansion powder is added, and the addition amount of the raw materials is adjusted and controlled, so that the high thermal expansion coefficient caused by the refractory fiber and the infrared opacifying agent is balanced, the expansion coefficient of the aerogel thermal insulation material is ensured to be 3.0 * 10 <-6 >/K or below, and the thermal expansion coefficient of the aerogel thermal insulation material is ensured to be 3.0 * 10 <-6 >/K or below. The strength of the aerogel thermal insulation material is ensured, and the bending strength of the aerogel thermal insulation material is ensured to be 0.1 MPa or above, so that the thermal insulation material disclosed by the invention has relatively high use temperature and good thermal shock resistance.
本发明公开一种耐热冲击纤维增强气凝胶隔热材料，其制备原料包括气凝胶粉体、耐火纤维、红外遮光剂、低膨胀/负膨胀材料粉体、硅烷偶联剂和有机结合剂。本发明在纤维增强气凝胶隔热材料的基础上，加入了低膨胀/负膨胀粉体，并通过调整控制各原料之间的添加量，既平衡了来自耐火纤维和红外遮光剂带来的高热膨胀系数，使所述气凝胶隔热材料的膨胀系数保证在3.0×10‑6/K以下，又保证了气凝胶隔热材料的强度，使所述气凝胶隔热材料的抗弯折强度保证在0.1MPa以上，从而使得本发明的隔热材料的具有较高的使用温度和良好的耐热冲击性。
Thermal shock resistant fiber reinforced aerogel thermal insulation material and preparation method thereof
一种耐热冲击纤维增强气凝胶隔热材料及其制备方法
YAO RUNZHAN (Autor:in)
27.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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