• Summary:

      The increase of the aromatic ring density in the Pu segment increases the rigidity of the segment and increases the intermolecular force, so that the thermal decomposition temperature of the polymer increases. Oxazolidinone can be synthesized from is...

    • Summary:

      Now more and more people buy a car, so the car cushion has become more and more hot, then you know what car cushion is what? The following is the China Chamber of the report by the small series for you finishing the car cushion industry definition an...

    • Summary:

      1, material inferior: because the market price of waterproof material competition, resulting in many domestic polyurethane material manufacturers in the waterproof
      2, the material cut corners, which will make the waterproof material itself physica...

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