Investigation On The Thermal Testing Method Of High Fluffy Fiber Assembly And Its Application

Through analyzing the thermal mechanism of the fluffy wadding, it is known that the spatial accumulation form of fiber morphology determines the warm thermal properties of the fluffy wadding. The original morphology of the test samples were damaged while testing by the original thermal conductivity tester, and the test results were unreliable. Improvements was made on the original thermal conductivity test system of KES, the test can be performed on the specimen of a variety compressed state for the installation of the lifting frame. Test data become emerged in a very good reproducibility and stability for the use of the insulation protective gear which isolating the heat dissipation from test section to the surrounding environment and making the heat transfer path to simplify. At the same time makes the heat transfer path to simplify, more heat flakes along the thickness direction starting from the hot plate delivered to the board.The new fluffy wadding whose internal structure formed by the three-dimensional divergent fiber network was developed on the thermal mechanism and the simulation of the feather fibers’dendritic structure. The wadding’s compress performance, breathability, thermal properties and moisture performance were tested. The new fluffy wadding has a better ability to resist the compression than the wadding of duck down under the same degree of fluffy aggregates.and it has a good water vapor permeability; While duck down fiber mixed, the wadding’s water vapor permeability becomes poor, but it’s thermal property becomes well. The wind resistance of the new fluffy wadding is much better than the wadding of duck down, It will loss less heat dissipation in winds.