| 专利名称 | Process for preparation of polyolefin/inorganic component nanocomposite by in-situ polymerization | 申请号 | US20020128948 | 专利类型 | US | 公开（公告）号 | US6649713 | 公开（授权）日 | 2003.11.18 | 申请（专利权）人 | 中国科学院长春应用化学研究所 | 发明（设计）人 | HUANG BAOLONG (CN); WEI LIANGMING (CN); TANG TAO (CN) | 主分类号 | C08F4/42 | IPC主分类号 | C08F4/42 | 专利有效期 | Process for preparation of polyolefin/inorganic component nanocomposite by in-situ polymerization 至Process for preparation of polyolefin/inorganic component nanocomposite by in-situ polymerization | 法律状态 | 说明书摘要 | The present invention relates to a process for preparation of polyolefin/inorganic component nanocomposite by in-situ polymerization, in which, a clay is first organically modified and then silica or titanium dioxide nanometer particles are incorporated into the layers of crystal sheets of the clay by sol-gel method. And a metallocene catalyst is then loaded on the above-mentioned material and a finished catalyst is obtained. The said catalyst is used for in-situ polymerization of ethylene or propylene, and polyolefin/clay nanocomposite is finally obtained. The process for preparation of the catalyst according to the present invention is simple, and the mechanical properties of the nanocomposite are high. For example, the Young's modulus and the tensile strength thereof are in the ranges of 700-2600 Mpa, and 20-55 MPa respectively. |
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