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High-porosity super-hydrophobic surface nano microporous insulation board and preparation method thereof
The invention discloses a high-porosity super-hydrophobic surface nano-microporous insulation board and a preparation method thereof.The high-porosity super-hydrophobic surface nano-microporous insulation board is composed of fumed silica, fumed alumina, an opacifying agent, fibers and a super-hydrophobic surface, pores are uniform and closed, the pores are not communicated with one another, an independent confinement space is formed, and heat transfer is effectively obstructed; the super-hydrophobic surface is obtained by performing coupling, grafting and other functional group reactions on each reagent on the surface of the nano-microporous insulation board and finally roasting in an atmosphere furnace. Through a special stirring process, vacuum extrusion and pressing, friction among powder particles is avoided, the high porosity, the low aperture and the uniformity of air holes of the nano-microporous heat insulation plate formed by pressing the raw materials are guaranteed, a super-hydrophobic surface is prepared on the surface, and long-term application of the nano-microporous heat insulation plate in a high-temperature water environment is achieved.
本发明公开了一种高孔隙率超疏水表面纳米微孔绝热板及其制备方法，由气相二氧化硅、气相氧化铝、遮光剂、纤维及超疏水表面构成，所述的孔为均匀封闭孔，孔与孔之间互不联通，形成独立的限域空间，有效阻隔了热量的传递；所述的超疏水表面是各试剂在纳米微孔绝热板表面发生偶联及接枝等官能团反应，最后在气氛炉中焙烧得到。该发明通过特殊的搅拌工艺，然后真空挤压再进行压制，避免了粉末颗粒之间的摩擦，保证了原料压制成纳米微孔绝热板的高孔隙率、低孔径以及气孔的均匀性，并在表面制备超疏水表面，实现了其在高温有水环境下的长期应用。
High-porosity super-hydrophobic surface nano microporous insulation board and preparation method thereof
The invention discloses a high-porosity super-hydrophobic surface nano-microporous insulation board and a preparation method thereof.The high-porosity super-hydrophobic surface nano-microporous insulation board is composed of fumed silica, fumed alumina, an opacifying agent, fibers and a super-hydrophobic surface, pores are uniform and closed, the pores are not communicated with one another, an independent confinement space is formed, and heat transfer is effectively obstructed; the super-hydrophobic surface is obtained by performing coupling, grafting and other functional group reactions on each reagent on the surface of the nano-microporous insulation board and finally roasting in an atmosphere furnace. Through a special stirring process, vacuum extrusion and pressing, friction among powder particles is avoided, the high porosity, the low aperture and the uniformity of air holes of the nano-microporous heat insulation plate formed by pressing the raw materials are guaranteed, a super-hydrophobic surface is prepared on the surface, and long-term application of the nano-microporous heat insulation plate in a high-temperature water environment is achieved.
本发明公开了一种高孔隙率超疏水表面纳米微孔绝热板及其制备方法，由气相二氧化硅、气相氧化铝、遮光剂、纤维及超疏水表面构成，所述的孔为均匀封闭孔，孔与孔之间互不联通，形成独立的限域空间，有效阻隔了热量的传递；所述的超疏水表面是各试剂在纳米微孔绝热板表面发生偶联及接枝等官能团反应，最后在气氛炉中焙烧得到。该发明通过特殊的搅拌工艺，然后真空挤压再进行压制，避免了粉末颗粒之间的摩擦，保证了原料压制成纳米微孔绝热板的高孔隙率、低孔径以及气孔的均匀性，并在表面制备超疏水表面，实现了其在高温有水环境下的长期应用。
High-porosity super-hydrophobic surface nano microporous insulation board and preparation method thereof
一种高孔隙率超疏水表面纳米微孔绝热板及其制备方法
YE XINLI (author) / XU JIANQING (author) / ZHANG HAIYANG (author) / ZHANG JUNXIONG (author) / LI XING (author)
2023-01-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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