What Advantages of Aerogel Composite Products Compared with the Traditional Insulation Material?
In the early 80s of our country, the adiabatic energy-saving materials really started to develop. From the beginning, the application of adiabatic and energy-saving materials in the industrial field has been widely applied to the field of building insulation materials. Its development prospect is even greater and greater. In this vibrant industry, aerogels are the focus of attention because of their unparalleled overall performance, but the price of aerogels is also relatively high. For this reason, Joda - Aerogel The development of the current adiabatic energy-saving materials as well as the future development direction of the aerogel composite products and the price adjustment of the aerogel are introduced.
What are the advantages of aerogel composite products compared with the mainstream thermal insulation materials on the market?
Aerogel composite products and thermal insulation materials widely used in the market today do not mean that the performance of the Aerogel is better than other products in one aspect, but rather its comprehensive performance is superior. Among the adiabatic energy-saving materials widely used in the current market, some materials have relatively good heat insulation properties, and some of the materials have relatively good fire resistance, and some of the materials have good water resistance. Some materials have unique advantages in some aspects, however, Gel composite materials can combine these advantages, which is currently not possible with any kind of thermally insulated energy-saving material.
For example, the thermal conductivity of organic materials among the thermal insulation and energy-saving materials is the best among all the materials, and the thermal conductivity of polyurethane can reach 0.019 W / (m · K). But precisely because of its good thermal conductivity, the combustion coefficient is also high, in case of flammable, which is doomed to its use indoors. At present, people pay more and more attention to fire protection, which greatly restricts the scope of their application due to the poor fireproof performance of polyurethane materials.
The same polystyrene foam (EPS) is facing such problems. At present, more than 70% of China's building energy efficiency is the EPS market, and its thermal conductivity is about 0.039 W / (m · K), but it is flammable in the event of fire. And in accordance with state regulations to achieve 75% energy-saving buildings, then the cold in the northeast this material will have to be done very thick, which also restricts its market applications. At present, the EPS market is huge, but it is conceivable that due to its own limitations and the new materials entering, the future development space will be limited or even shrinking. Inorganic materials have a good fire-proofing performance and are rated Class A fireproof, but their thermal conductivity is not good and their production process is bound to consume a lot of energy and have an impact on the environment.
Aerogel composite products, the temperature curve of the thermal conductivity of the rate of change is not like other adiabatic energy-saving materials that will increase as temperature has a zoom-in process, the thermal conductivity curve is relatively flat, which insulation effect on the pipeline than At present, the adiabatic effect of the mainstream thermal insulation material on the market is good. In the field of building energy efficiency, the common measurement temperature is between 25 and 75 ℃. However, the thermal conductivity of the Aerogel composite product can be kept at 0.04 to 0.06 W / (m · K) even at a high temperature of 600 ° C., Its advantage.
Aerogel composite products longer service life is also incomparable with other thermal insulation materials, commonly used insulation materials will be a few years after the maintenance, replacement, and Aerogel composite products, a longer service life reduces the maintenance costs , More environmentally friendly energy-saving, and its stable thermal conductivity can also reduce the thickness of insulation materials in cold areas, reduce the use of space.