Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fiber calcium silicate thermal insulation material based on modified Yellow River sediment and preparation method of fiber calcium silicate thermal insulation material
The invention belongs to the field of thermal insulation materials, and particularly discloses a fiber calcium silicate thermal insulation material based on modified Yellow River sediment and a preparation method thereof. The Yellow River silt is modified firstly, so that the surface of the Yellow River silt has viscosity, and wood fibers are adsorbed to form a fiber reinforcement. And mixing the modified Yellow River silt with the NMMO solution of plant fibers, slaked lime, cement, fly ash and other substances to form a cross-linked structure, thereby preparing the fiber calcium silicate thermal insulation material. According to the fiber calcium silicate thermal insulation material prepared by the preparation method disclosed by the invention, the breaking strength is 0.72 to 0.86 MPa, the compressive strength is 1.74 to 1.85 MPa, the dry shrinkage rate is 0.01 to 0.02, the heat conductivity coefficient is 0.078 to 0.089 w/m.k, and no crack is generated. The toughness of the calcium silicate thermal insulation material is improved, the cracking situation is reduced, and resource utilization of the Yellow River sediment is achieved.
本发明属于保温材料领域，具体公开一种基于改性黄河泥沙的纤维硅酸钙保温材料及其制备方法。本发明先对黄河泥沙进行改性，使其表面具有粘性从而吸附木质纤维形成纤维增强体。再将改性后的黄河泥沙与植物纤维的NMMO溶液、熟石灰、水泥、粉煤灰等物质混合，形成交联结构体，从而制备所述纤维硅酸钙保温材料。本发明制备的纤维硅酸钙保温材料的抗折强度为0.72～0.86MPa，抗压强度为1.74～1.85MPa，干缩率为0.01～0.02，导热系数为0.078～0.089w/m.k，且未产生裂缝。本发明不仅提升了硅酸钙保温材料的韧性，减少了开裂情况的出现，还实现了黄河泥沙的资源化利用。
Fiber calcium silicate thermal insulation material based on modified Yellow River sediment and preparation method of fiber calcium silicate thermal insulation material
The invention belongs to the field of thermal insulation materials, and particularly discloses a fiber calcium silicate thermal insulation material based on modified Yellow River sediment and a preparation method thereof. The Yellow River silt is modified firstly, so that the surface of the Yellow River silt has viscosity, and wood fibers are adsorbed to form a fiber reinforcement. And mixing the modified Yellow River silt with the NMMO solution of plant fibers, slaked lime, cement, fly ash and other substances to form a cross-linked structure, thereby preparing the fiber calcium silicate thermal insulation material. According to the fiber calcium silicate thermal insulation material prepared by the preparation method disclosed by the invention, the breaking strength is 0.72 to 0.86 MPa, the compressive strength is 1.74 to 1.85 MPa, the dry shrinkage rate is 0.01 to 0.02, the heat conductivity coefficient is 0.078 to 0.089 w/m.k, and no crack is generated. The toughness of the calcium silicate thermal insulation material is improved, the cracking situation is reduced, and resource utilization of the Yellow River sediment is achieved.
本发明属于保温材料领域，具体公开一种基于改性黄河泥沙的纤维硅酸钙保温材料及其制备方法。本发明先对黄河泥沙进行改性，使其表面具有粘性从而吸附木质纤维形成纤维增强体。再将改性后的黄河泥沙与植物纤维的NMMO溶液、熟石灰、水泥、粉煤灰等物质混合，形成交联结构体，从而制备所述纤维硅酸钙保温材料。本发明制备的纤维硅酸钙保温材料的抗折强度为0.72～0.86MPa，抗压强度为1.74～1.85MPa，干缩率为0.01～0.02，导热系数为0.078～0.089w/m.k，且未产生裂缝。本发明不仅提升了硅酸钙保温材料的韧性，减少了开裂情况的出现，还实现了黄河泥沙的资源化利用。
Fiber calcium silicate thermal insulation material based on modified Yellow River sediment and preparation method of fiber calcium silicate thermal insulation material
一种基于改性黄河泥沙的纤维硅酸钙保温材料及其制备方法
ZHANG MAOLIANG (Autor:in) / LI JIANWEI (Autor:in) / WANG JINHUA (Autor:in) / HUANG YONGFENG (Autor:in) / LIU SURUI (Autor:in) / QIAO QIAN (Autor:in) / LI XIAOYING (Autor:in)
15.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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