1. What are the important parameters in polyurethane products? What are the specific values?
The important parameters in polyurethane products, from a professional point of view, are five factors: thermal conductivity, oxidation index, closed cell ratio, water absorption and strength. Further, in terms of specific values, the thermal conductivity is 0.024, the oxidation index is 28, the closed cell ratio is 99.5, the water absorption rate is 1, and the strength is 10 MPa.
2. Does the polyurethane in the polyurethane product contain halogen in its material? PU, is it polyurethane?
In the polyurethane product, the polyurethane material has no halogen in its composition. Moreover, it is not a polyester type and is a polymer material.
PU, which is a polyurethane, and PU foamed product, is a PU foaming rubber, that is, a polyurethane raw material, which is injected into a mold to perform one-time molding foaming. The PU foamed product, in classification, has two types of PU soft foam and PU hard foam.
3. Which of the polyurethane products is more important?
One of the more important products in polyurethane products is polyurethane foam. Further, since it is porous, its relative density is small and the specific strength is high. In terms of specific types, there are soft, soft boards, etc. The difference is mainly in the raw materials and formulas. According to different raw materials and different formulations, different finished products can be obtained, thus making the products diverse.