How to achieve thermal insulation effect of aerogel felt
2019-06-25 17:53:04 From: Tradematt-Aerogel
Nowadays, there are many insulation materials on the market, but how does the aerogel felt achieve insulation effect? This problem has also attracted a lot of people's attention. From the structure of gas condensation, the effect of aerogel insulation material is better than other insulation materials. Now we can determine the thermal insulation of aerogel felt and other insulation materials through the thermal conductivity of thermal insulation material. efficacy.
Tradematt aerogel has a complete industrial chain of thermal insulation and energy-saving materials. Its core business includes aerogel insulation materials, vacuum energy-saving materials and fiber insulation materials. The main products include aerogel felt, aerogel plate, aerogel powder, aerogel particles, aerogel glass and other thermal insulation energy-saving materials.
For the effect of the product, everyone is more confident in scientific testing. Regarding the aerogel felt, the thermal conductivity of different substances is different; the structure, density, humidity, temperature, pressure and other factors of the same substance will also affect the thermal conductivity. When the water content of the same substance is low and the temperature is low, the thermal conductivity is small.
Generally, materials with lower thermal conductivity are called thermal insulation materials (the national standard stipulates that materials whose thermal conductivity is not more than 0.12 W/(m·K) when the average temperature is not higher than 350 ° C is called thermal insulation material), and the thermal conductivity is Materials below 0.05 W/(m·K) are called high-efficiency insulation materials, but the thermal conductivity of aerogels is significantly smaller than that of conventional insulation materials, both at room temperature and at high temperatures.
At a high temperature of 200 degrees Celsius, the thermal conductivity data lines of other materials are significantly upward, indicating that the insulation performance of traditional insulation materials is significantly reduced in high temperature environments, but at temperatures above 200 degrees, the aerogel thermal conductivity data lines are only slowly upwards. It shows that in the high temperature environment, the heat preservation effect is better than the traditional insulation material.
In the thermal insulation materials of different materials, the thermal conductivity determines the thermal insulation effect. The smaller the thermal conductivity, the better the thermal insulation effect. Conversely, the greater the thermal conductivity, the worse the thermal insulation effect. With the change of temperature, the thermal conductivity of different materials of insulation materials is constantly changing. The same material, different manufacturers and production processes will also lead to different thermal conductivity, which will eventually affect the insulation effect. When selecting insulation materials, in addition to the thermal conductivity of the materials, it is also necessary to consider the medium temperature, site environment and cost when using the integrated insulation materials.