| 摘要 |
The invention relates to a polymer blend, a process for the preparation thereof and products manufactured from the polymer blend. The polymer blend contains 95 to 50 parts by weight of a polyolefin- or polyester-based polymer matrix, 5 to 50 parts by weight of an aromatic main-chain liquid crystalline polymer, and plastic additives, if any. Further, the blend contains, based on the total weight of the previous components, 0.1 to 30 per cent by weight of a substance (a compatibilizer) which improves the compatibility of the polymer matrix and the liquid crystalline component. According to the invention, the compatibilizer comprises a polymer containing reactive, functional groups. Preferably the compatibilizer comprises a SEBS polymer functionalized with maleic anhydride or an olefin polymer functionalized with glycidyl methacrylate. Having excellent tensile, flexural and impact strength, the polymer blends according to the invention, can be used for the manufacture of tubes, pipes, sheets and fibres. They are suited, e.g., for manufacture of constructional parts of electrical and optical cables. |
