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A platform for research: civil engineering, architecture and urbanism
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 (author) / HUANG HUA (author) / DU BIN (author)
2024-07-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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