| 摘要 |
PURPOSE: A flame retardant insulating material with a recycled resource of a microscopic structure and a manufacturing method thereof are provided to use a fumed silica which is the recycled resource as a high temperature insulating board such as a high temperature insulating material or a furnace. CONSTITUTION: A flame retardant insulating material comprises 35-99.5 wt% of a fumed silica, 0.3-25 wt% of a reinforcing material, and 0.2-55 wt% of a heat resisting filler. The fumed silica has a microscopic structure. The specific surface area of the fumed silica is 50-380m/g. The reinforcing material is an inorganic reinforcing material in a fiber type selected from the mixture of glass fiber, ceramic fiber, carbon fiber, and quartz fiber. The diameter of the inorganic reinforcing material in the fiber type is 0.5-110 micron. The length of the inorganic reinforcing material is 3-50mm. The heat resisting filler is selected from silicon carbide, zirconium silicate, graphite, meta-kaolin, titanium dioxide, talc, vermiculite, pearlite, and calcium silicate.
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