(1) Polystyrene material Polystyrene foam board is compounded with a layer of hips on both sides, and a composite material with higher rigidity is obtained. For different resins, different densities, and types of rohacel...
1 Building materials Due to its light weight per unit volume, soundproof, vibration-proof, fire-resistant, non-combustible, heat-preserving and other properties, aluminum foam can be used to construct non-load-bearing in...
The current frequency of the Qi standard for wireless charging is between 100-200k. At this frequency, the permeability of nanocrystalline is very close to that of cobalt-based amorphous, which is significantly higher th...
A good carbon fiber frame has a mixture of different types of carbon fibers, each of which is used in different locations in the frame for very specific purposes. High-modulus fibers are expensive, so bicycle companies w...
In order to improve the heat-resistant temperature structure of the hollow carbon fiber rim, there are several methods: (1) Improve the drop of glass transition temperature of carbon fiber by epoxy resin system, thereby ...
The melting temperature of calcium silicate adiabatic production is around 2000°C, the heat-resistant temperature of asbestos rope is 500°C for all asbestos fibers, 250°C for cotton fibers with no more than 10% content, ...
