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          The current position: NEWS > Industry News > Preparation of nano aerogel insulation felt

          Preparation of nano aerogel insulation felt

          Date:2016-8-25 source:www.rodrigojames.com Number of visits:683

          1. The unique network structure, high porosity and low density of SiO2 aerogels lead to the brittleness of the aerogels themselves. in high temperature environment, translucent aerogels are difficult to resist the influence of radiation thermal conductivity. therefore, in many fields, aerogels are difficult to be used as heat insulation materials alone, and need to be combined with other materials in order to achieve the practical use effect. A new type of nano aerogel thermal insulation felt was developed by scientific and technical personnel of Jinshi refractory company after years of repeated experimental research. The main raw materials for preparing nano aerogel thermal insulation felt are SiO2 aerogel, fiber, carbon black, TiO2 and zirconia.
          2. Development method. 50 - 60 % ( by mass fraction, the same below ) of SiO 2 glue; 3 to 5 percent of fiber; 10 to 20 percent of carbon black; 5 % - 10 % TiO 2; 10 to 15 percent of zirconia is added into a special mixing device to be evenly stirred, and the nano aerogel thermal insulation felt is prepared by hydraulic compression molding.
          3. performance and characteristics. The nano aerogel thermal insulation felt is a novel thermal insulation material molded by compression molding, has low thermal conductivity, is tested by an authoritative mechanism for 800, has a thermal conductivity of 0.037 w / ( MK ) and a heating wire change rate of 1.7 percent; Secondly, the high temperature resistance is good, and the high temperature resistance is more than 000; Long-term use without deformation, pulverization, performance degradation, in the conventional use environment has a very long life, no need of replacement and maintenance; Low density bulk density can be designed between 200 ~ 600 kg / m according to the requirements; The environment-friendly non-toxic doe not release any gas or organic matter at high temperature.

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