The invention relates to an external heat-proof material and a preparation method thereof. The external heat-proof material comprises multiple layers of functionally graded thin felts, wherein each functionally graded thin felt comprises multiple layers of inorganic fiber thin-layer materials, an infrared reflecting film material is sandwiched between every two layers, the layers are compounded into an integrated structure through Z-direction needling, and a hole sealing agent permeates into at least the surface layer of each functionally graded thin felt; inorganic fiber braided fabric whichis laid on the upper surface and the lower surface of the multiple layers of functionally graded thin felts and is fixed with the multiple layers of functionally graded thin felts through sewing; anda surface ceramic panel which is formed by impregnating the multiple layers of functionally graded thin felts to which the inorganic fiber braided fabric is fixed with a ceramic precursor. The external heat-proof material not only has excellent heat insulation performance, but also has excellent anti-scouring performance, and can be applied to the field of external heat protection.
本发明涉及一种外防热材料及其制备方法。该外防热材料包括多层功能梯度薄毡,多层功能梯度薄毡包括多层无机纤维薄层材料,层与层之间夹有红外反射膜材料,通过Z向针刺复合为一体结构,并且至少所述多层功能梯度薄毡的表层渗透有封孔剂;无机纤维编织物,铺设于所述多层功能梯度薄毡上下表面,通过缝合与所述多层功能梯度薄毡实现固定;表面陶瓷面板,通过将固定有所述无机纤维编织物的所述多层功能梯度薄毡浸渍陶瓷前驱体而形成。该防热材料不仅具有优异的隔热性能,还具有优异的抗冲刷性能,可应用在外防热领域。
External heat-proof material and preparation method thereof
一种外防热材料及其制备方法
2020-09-22
Patent
Electronic Resource
Chinese
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