A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
External wall thermal insulation material for building and preparation method of external wall thermal insulation material
The invention belongs to the field of building thermal insulation materials, and particularly relates to an external wall thermal insulation material for buildings and a preparation method thereof. According to the invention, blast furnace slag and red mud are used as raw materials, and dolomite, tungsten carbonate, zirconium oxycarbonate, carbon nanofibers, nano-alumina whiskers and nano-silicon carbide whiskers are used as additives; the preparation method comprises the following steps: mixing the raw materials and the additive to form a mixed material, adding urea, a Tween 80 aqueous solution with the concentration of 6-10 wt% and a Span 80 ethanol solution with the concentration of 8-12 wt%, then carrying out wet milling by using a ball mill, and uniformly mixing to prepare slurry; carrying out vacuum freeze drying on the obtained slurry, crushing, sieving and then drying; filling a mold with the sieved powder, then placing the mold in a heating furnace, and controlling a roasting atmosphere to perform roasting foaming pore-forming; and after roasting foaming pore-forming is completed, furnace cooling is carried out to the normal temperature, the external wall thermal insulation material for the building is obtained, the compressive strength of the prepared external wall thermal insulation material for the building ranges from 40.1 MPa to 43.5 MPa, the heat conductivity coefficient ranges from 0.027 W/(m.K) to 0.039 W/(m.K), the performance is excellent, and high-value recycling of waste can be achieved.
本发明属于建筑保温材料领域，具体涉及一种建筑用外墙保温材料及其制备方法。本发明是以高炉矿渣和赤泥为原料，白云石、碳酸钨、碳酸氧锆、纳米碳纤维、纳米氧化铝晶须和纳米碳化硅晶须作为添加剂；将原料和添加剂混合形成混合物料，添加尿素、浓度6～10wt％的吐温80水溶液和浓度8～12wt％的司班80的乙醇溶液，然后用球磨机进行湿磨，混合均匀并制成料浆；将得到的料浆进行真空冷冻干燥，粉碎、过筛，然后干燥；将过筛后的粉料填充到模具内，然后置于加热炉中，控制焙烧气氛进行焙烧发泡造孔；焙烧发泡造孔完成后，随炉冷却至常温，获得建筑用外墙保温材料，所制备的建筑用外墙保温的抗压强度为40.1MPa～43.5MPa，导热系数为0.027～0.039W/(m·K)，性能优异，能够实现废物高价值再利用。
External wall thermal insulation material for building and preparation method of external wall thermal insulation material
The invention belongs to the field of building thermal insulation materials, and particularly relates to an external wall thermal insulation material for buildings and a preparation method thereof. According to the invention, blast furnace slag and red mud are used as raw materials, and dolomite, tungsten carbonate, zirconium oxycarbonate, carbon nanofibers, nano-alumina whiskers and nano-silicon carbide whiskers are used as additives; the preparation method comprises the following steps: mixing the raw materials and the additive to form a mixed material, adding urea, a Tween 80 aqueous solution with the concentration of 6-10 wt% and a Span 80 ethanol solution with the concentration of 8-12 wt%, then carrying out wet milling by using a ball mill, and uniformly mixing to prepare slurry; carrying out vacuum freeze drying on the obtained slurry, crushing, sieving and then drying; filling a mold with the sieved powder, then placing the mold in a heating furnace, and controlling a roasting atmosphere to perform roasting foaming pore-forming; and after roasting foaming pore-forming is completed, furnace cooling is carried out to the normal temperature, the external wall thermal insulation material for the building is obtained, the compressive strength of the prepared external wall thermal insulation material for the building ranges from 40.1 MPa to 43.5 MPa, the heat conductivity coefficient ranges from 0.027 W/(m.K) to 0.039 W/(m.K), the performance is excellent, and high-value recycling of waste can be achieved.
本发明属于建筑保温材料领域，具体涉及一种建筑用外墙保温材料及其制备方法。本发明是以高炉矿渣和赤泥为原料，白云石、碳酸钨、碳酸氧锆、纳米碳纤维、纳米氧化铝晶须和纳米碳化硅晶须作为添加剂；将原料和添加剂混合形成混合物料，添加尿素、浓度6～10wt％的吐温80水溶液和浓度8～12wt％的司班80的乙醇溶液，然后用球磨机进行湿磨，混合均匀并制成料浆；将得到的料浆进行真空冷冻干燥，粉碎、过筛，然后干燥；将过筛后的粉料填充到模具内，然后置于加热炉中，控制焙烧气氛进行焙烧发泡造孔；焙烧发泡造孔完成后，随炉冷却至常温，获得建筑用外墙保温材料，所制备的建筑用外墙保温的抗压强度为40.1MPa～43.5MPa，导热系数为0.027～0.039W/(m·K)，性能优异，能够实现废物高价值再利用。
External wall thermal insulation material for building and preparation method of external wall thermal insulation material
一种建筑用外墙保温材料及其制备方法
CUI YAOCHUN (author) / LI MINYING (author)
2022-03-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME