CAJ | 학술논문

利用面包圈状、棒状、高比表面积球状和空心球状4种不同形貌的介孔材料作为载体负载甲基铝氧烷和茂金属双（正丁基环戊二烯基）二氯化锆（BuCp）制备负载型茂金属催化剂,并在2 L不锈钢高压聚合釜进行高压乙烯聚合小试试验。文中研究了4种反应器的组成、结构和微观形貌。扫描电镜、小角X光粉晶衍射、氮气吸附-脱附测试结果表明,4种不同形貌介孔材料在负载茂金属后仍然保持较好微观形貌及其特有的介孔材料孔道结构,负载茂金属后反应器的孔结构参数较负载前有所减小,孔壁厚度有所增强,表明茂金属成功进入介孔材料孔道中。元素分析结果表明,所得催化剂表面的Al元素质量分数范围为16%～22%,Zr元素质量分数范围为0.4%～0.7%。聚合试验结果表明,催化剂对乙烯均聚和共聚的活性均优于当前工业用载体955硅胶负载同样茂金属后的乙烯均聚和乙烯和己烯共聚的活性,其中空心球状介孔材料反应器为最适合乙烯聚合的催化剂。
이용면포권상、봉상、고비표면적구상화공심구상4충불동형모적개공재료작위재체부재갑기려양완화무금속쌍（정정기배무이희기）이록화고（BuCp）제비부재형무금속최화제,병재2 L불수강고압취합부진행고압을희취합소시시험。문중연구료4충반응기적조성、결구화미관형모。소묘전경、소각X광분정연사、담기흡부-탈부측시결과표명,4충불동형모개공재료재부재무금속후잉연보지교호미관형모급기특유적개공재료공도결구,부재무금속후반응기적공결구삼수교부재전유소감소,공벽후도유소증강,표명무금속성공진입개공재료공도중。원소분석결과표명,소득최화제표면적Al원소질량분수범위위16%～22%,Zr원소질량분수범위위0.4%～0.7%。취합시험결과표명,최화제대을희균취화공취적활성균우우당전공업용재체955규효부재동양무금속후적을희균취화을희화기희공취적활성,기중공심구상개공재료반응기위최괄합을희취합적최화제。
Four kinds of catalysts have been prepared by supported（ n-BuCp ）2ZrCI2 and MAO onto the mesoporous materials with different morphologies including rod-like, sphere-like, doughnut-like and hollow sphere-like shapes firstly and successfully. The structure and morphology of the catalysts have been studied. And the catalysts have been investigated for the polymerization of ethylene. The result of ethylene homopolymerization and ethylene/1-hexene copolymerization catalyzed by metallocene adduct catalyst confirmed that catalyst possessed higher activity in copolymerization and homopolymerization than 955 silica gel, and that hollow sphere-like catalyst is the most suitable carrier for ethylene polymerization.