Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant nano thermal insulation material and preparation method thereof
The invention provides a high-temperature-resistant nano thermal insulation material and a preparation method thereof. The thermal insulation material comprises ceramic fibers, an opacifying agent andnano mullite, wherein the use temperature of the ceramic fibers is higher than 1400 DEG C; the opacifying agent is selected from one or a combination of zirconium oxide and zirconium silicate, and the nano mullite is generated by in-situ reaction of nano silicon oxide and nano aluminum oxide in a hot-pressing environment; and the mass ratio of the nano mullite to the opacifying agent to the ceramic fibers is 3.55:(0-1):(0.03-0.35). The preparation method comprises the following steps: proportionally dispersing and mixing the raw materials to obtain composite powder; loading the composite powder into a forming mold; and carrying out in-situ reaction in a hot-pressing environment to generate the fiber-reinforced mullite high-temperature-resistant nano thermal insulation material. The material is excellent in heat insulation performance and good in overall strength and processability. Meanwhile, the preparation method is high in boundary dimension forming precision and suitable for occasions with high requirements for the dimensional precision of the thermal insulation material.
本发明提供了一种耐高温纳米隔热材料及其制备方法，该隔热材料包括陶瓷纤维、遮光剂和纳米莫来石，其中，所述陶瓷纤维的使用温度应高于1400℃；所述遮光剂选自氧化锆或硅酸锆中的一种或其组合，所述纳米莫来石由纳米氧化硅和纳米氧化铝在热压环境下原位反应生成；所述纳米莫来石、遮光剂和陶瓷纤维的质量比为3.55:(0～1):(0.03～0.35)。制备方法包括：将原料按配比分散混合得到复合粉料；将复合粉料装填入成型模具中；在热压环境下原位反应生成纤维增强莫来石耐高温纳米隔热材料。该材料隔热性能优异，整体强度和加工性良好。同时，该制备方法对外形尺寸成型精度高，适合对隔热材料尺寸精度要求较高的场合。
High-temperature-resistant nano thermal insulation material and preparation method thereof
The invention provides a high-temperature-resistant nano thermal insulation material and a preparation method thereof. The thermal insulation material comprises ceramic fibers, an opacifying agent andnano mullite, wherein the use temperature of the ceramic fibers is higher than 1400 DEG C; the opacifying agent is selected from one or a combination of zirconium oxide and zirconium silicate, and the nano mullite is generated by in-situ reaction of nano silicon oxide and nano aluminum oxide in a hot-pressing environment; and the mass ratio of the nano mullite to the opacifying agent to the ceramic fibers is 3.55:(0-1):(0.03-0.35). The preparation method comprises the following steps: proportionally dispersing and mixing the raw materials to obtain composite powder; loading the composite powder into a forming mold; and carrying out in-situ reaction in a hot-pressing environment to generate the fiber-reinforced mullite high-temperature-resistant nano thermal insulation material. The material is excellent in heat insulation performance and good in overall strength and processability. Meanwhile, the preparation method is high in boundary dimension forming precision and suitable for occasions with high requirements for the dimensional precision of the thermal insulation material.
本发明提供了一种耐高温纳米隔热材料及其制备方法，该隔热材料包括陶瓷纤维、遮光剂和纳米莫来石，其中，所述陶瓷纤维的使用温度应高于1400℃；所述遮光剂选自氧化锆或硅酸锆中的一种或其组合，所述纳米莫来石由纳米氧化硅和纳米氧化铝在热压环境下原位反应生成；所述纳米莫来石、遮光剂和陶瓷纤维的质量比为3.55:(0～1):(0.03～0.35)。制备方法包括：将原料按配比分散混合得到复合粉料；将复合粉料装填入成型模具中；在热压环境下原位反应生成纤维增强莫来石耐高温纳米隔热材料。该材料隔热性能优异，整体强度和加工性良好。同时，该制备方法对外形尺寸成型精度高，适合对隔热材料尺寸精度要求较高的场合。
High-temperature-resistant nano thermal insulation material and preparation method thereof
一种耐高温纳米隔热材料及其制备方法
WU WENJUN (Autor:in) / LI JUNNING (Autor:in) / SUN CHENCHENG (Autor:in) / WANG JUNSHAN (Autor:in) / HU ZIJUN (Autor:in) / SUN JINGJING (Autor:in) / YANG HAILONG (Autor:in) / WANG XIAOYAN (Autor:in)
09.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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