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Preparation method of porous nano calcium silicate thermal insulation material
The invention relates to the technical field of nano materials, in particular to a preparation method of a porous nano calcium silicate thermal insulation material. The preparation method comprises the following steps: preparation of a high-strength shell: uniformly mixing and stirring shell slurry consisting of hard calcium silicate fibers, high-alumina cement, quartz powder, modified diatomite, silicon dioxide, modified glass fibers and a dispersing agent, pouring the shell slurry into a mold, uniformly scraping, and drying and demolding at 100-110 DEG C, so as to obtain the high-strength shell, wherein the shell slurry is prepared from the hard calcium silicate fibers, the high-alumina cement, the quartz powder, the modified diatomite, the silicon dioxide, the modified glass fibers and the dispersing agent; pouring the mixed slurry into a mold, and pressurizing under the condition of 6-8MPa to obtain a wet blank; the wet blanks are stacked and fed into a drying kiln at the temperature of 250-260 DEG C to be dried, and then the product is obtained. According to the dispersing agent disclosed by the invention, porous structures of the modified diatomite and the modified glass fibers are interwoven with micropores of the hard calcium silicate fibers, so that a more complex three-dimensional pore network is formed. According to the structure, the porosity of the material is greatly increased, the heat conductivity is reduced, and therefore the heat preservation and insulation performance is improved.
本发明涉及纳米材料技术领域，具体涉及一种多孔纳米硅酸钙保温材料的制备方法。所述制备方法包括：高强壳体的制备：壳体浆料由的硬硅酸钙纤维、高铝水泥、石英粉、改性硅藻土、二氧化硅、改性玻璃纤维、分散剂组成，将壳体浆料混合搅拌均匀倒在模具内，刮制均匀，100‑110℃条件下干燥脱模即得；将混合浆料倒入模具中载6‑8MPa条件下加压得到湿坯；将湿坯堆叠送入250‑260℃干燥窑中干燥后即得。本发明的分散剂使得改性硅藻土和改性玻璃纤维的多孔结构与硬硅酸钙纤维的微孔相互交织，形成了更加复杂的三维孔隙网络。这种结构大大增加了材料的孔隙率，降低了热导率，从而提高了保温隔热性能。
Preparation method of porous nano calcium silicate thermal insulation material
The invention relates to the technical field of nano materials, in particular to a preparation method of a porous nano calcium silicate thermal insulation material. The preparation method comprises the following steps: preparation of a high-strength shell: uniformly mixing and stirring shell slurry consisting of hard calcium silicate fibers, high-alumina cement, quartz powder, modified diatomite, silicon dioxide, modified glass fibers and a dispersing agent, pouring the shell slurry into a mold, uniformly scraping, and drying and demolding at 100-110 DEG C, so as to obtain the high-strength shell, wherein the shell slurry is prepared from the hard calcium silicate fibers, the high-alumina cement, the quartz powder, the modified diatomite, the silicon dioxide, the modified glass fibers and the dispersing agent; pouring the mixed slurry into a mold, and pressurizing under the condition of 6-8MPa to obtain a wet blank; the wet blanks are stacked and fed into a drying kiln at the temperature of 250-260 DEG C to be dried, and then the product is obtained. According to the dispersing agent disclosed by the invention, porous structures of the modified diatomite and the modified glass fibers are interwoven with micropores of the hard calcium silicate fibers, so that a more complex three-dimensional pore network is formed. According to the structure, the porosity of the material is greatly increased, the heat conductivity is reduced, and therefore the heat preservation and insulation performance is improved.
本发明涉及纳米材料技术领域，具体涉及一种多孔纳米硅酸钙保温材料的制备方法。所述制备方法包括：高强壳体的制备：壳体浆料由的硬硅酸钙纤维、高铝水泥、石英粉、改性硅藻土、二氧化硅、改性玻璃纤维、分散剂组成，将壳体浆料混合搅拌均匀倒在模具内，刮制均匀，100‑110℃条件下干燥脱模即得；将混合浆料倒入模具中载6‑8MPa条件下加压得到湿坯；将湿坯堆叠送入250‑260℃干燥窑中干燥后即得。本发明的分散剂使得改性硅藻土和改性玻璃纤维的多孔结构与硬硅酸钙纤维的微孔相互交织，形成了更加复杂的三维孔隙网络。这种结构大大增加了材料的孔隙率，降低了热导率，从而提高了保温隔热性能。
Preparation method of porous nano calcium silicate thermal insulation material
一种多孔纳米硅酸钙保温材料的制备方法
QIU YIQI (author) / WANG JIABANG (author) / QIU MAOFA (author) / LU JIANJUN (author) / HONG JIA (author) / YU FUZHONG (author) / YE SHENGTAO (author) / HAO MIN (author) / FAN RONG (author) / YANG PINGWEI (author)
2024-12-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C03C
Chemische Zusammensetzungen für Gläser, Glasuren oder Emails
,
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
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