Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aerogel wall thermal insulation material with low heat conductivity coefficient and preparation method thereof
The invention belongs to the technical field of materials, and particularly relates to a low-heat-conductivity-coefficient aerogel wall thermal insulation material and a preparation method thereof.The thermal insulation material is prepared from expanded perlite, nano-silica sol, straw powder, an adhesive and building material auxiliary materials; the preparation method comprises the following steps: mixing expanded perlite, straw and nano silicon dioxide sol to obtain a mixed solution, carrying out programmed variable temperature treatment on the mixed solution, carbonizing the straw to obtain a composite material, mixing the composite material with an adhesive, adding building material auxiliary materials, uniformly mixing, and fixing and forming to obtain the low-heat-conductivity-coefficient aerogel wall thermal insulation material suitable for the wall. The procedure temperature change treatment is that the mixed solution is alternately placed at the temperature of 80-100 DEG C and 300-320 DEG C for circular treatment, the condition of 80-100 DEG C is maintained for 8-10 h, and the condition of 300-320 DEG C is maintained for 0.5-2 h. Compared with an existing material, the heat conductivity coefficient is further reduced, the heat preservation and heat insulation performance is good, and a new building wall material choice is provided.
本发明属于材料技术领域，具体涉及一种低导热系数气凝胶墙体保温材料及其制备方法，保温材料由以下原料制备而成：膨胀珍珠岩、纳米二氧化硅溶胶、秸秆粉、粘接剂、建材辅料；其中，膨胀珍珠岩、秸秆以及纳米二氧化硅溶胶混合后得到混合液，经过程序变温处理，秸秆得以炭化，得到的复合材料，然后再与胶粘剂混合，加入建材辅料，混合均匀，固定成型，得到适用于墙体的低导热系数气凝胶墙体保温材料；所述程序变温处理是指将混合液交替置于80～100℃和300～320℃的温度下，循环处理，80～100℃的条件维持8～10h，300～320℃的条件维持0.5～2h。本发明比现有的材料导热系数进一步降低，保温隔热性能好，提供了新的建筑墙体材料选择。
Aerogel wall thermal insulation material with low heat conductivity coefficient and preparation method thereof
The invention belongs to the technical field of materials, and particularly relates to a low-heat-conductivity-coefficient aerogel wall thermal insulation material and a preparation method thereof.The thermal insulation material is prepared from expanded perlite, nano-silica sol, straw powder, an adhesive and building material auxiliary materials; the preparation method comprises the following steps: mixing expanded perlite, straw and nano silicon dioxide sol to obtain a mixed solution, carrying out programmed variable temperature treatment on the mixed solution, carbonizing the straw to obtain a composite material, mixing the composite material with an adhesive, adding building material auxiliary materials, uniformly mixing, and fixing and forming to obtain the low-heat-conductivity-coefficient aerogel wall thermal insulation material suitable for the wall. The procedure temperature change treatment is that the mixed solution is alternately placed at the temperature of 80-100 DEG C and 300-320 DEG C for circular treatment, the condition of 80-100 DEG C is maintained for 8-10 h, and the condition of 300-320 DEG C is maintained for 0.5-2 h. Compared with an existing material, the heat conductivity coefficient is further reduced, the heat preservation and heat insulation performance is good, and a new building wall material choice is provided.
本发明属于材料技术领域，具体涉及一种低导热系数气凝胶墙体保温材料及其制备方法，保温材料由以下原料制备而成：膨胀珍珠岩、纳米二氧化硅溶胶、秸秆粉、粘接剂、建材辅料；其中，膨胀珍珠岩、秸秆以及纳米二氧化硅溶胶混合后得到混合液，经过程序变温处理，秸秆得以炭化，得到的复合材料，然后再与胶粘剂混合，加入建材辅料，混合均匀，固定成型，得到适用于墙体的低导热系数气凝胶墙体保温材料；所述程序变温处理是指将混合液交替置于80～100℃和300～320℃的温度下，循环处理，80～100℃的条件维持8～10h，300～320℃的条件维持0.5～2h。本发明比现有的材料导热系数进一步降低，保温隔热性能好，提供了新的建筑墙体材料选择。
Aerogel wall thermal insulation material with low heat conductivity coefficient and preparation method thereof
一种低导热系数气凝胶墙体保温材料及其制备方法
YANG DAWEI (Autor:in) / HUANG HUA (Autor:in) / DU BIN (Autor:in)
23.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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