本发明涉及一种生产耐磨抗静电聚烯烃的载体催化剂及其制备方法和应用,催化剂为活性组分负载在复合载体上,所述的活性组分为过渡金属催化剂;所述的复合载体包括第一组份和第二组份,其中第一组份为层状结构的石墨类碳材料或其改性产物,第二组分为链状或棒状结构的纤维材料或其改性产物;所述的第一组分、第二组分之间的重量比为(0.01‑100):1,所述的第一组分和第二组分重量之和与活性组分的重量比为(0.01‑100):1。与现有技术相比,本发明所得催化剂可以聚合得到全密度聚烯烃产品,产物分子量可调,粘均分子量最高可达1000万。本发明所得到的聚烯烃复合材料的力学性能得到大幅度提升,表现出优异的耐磨性、耐冲击性和永久抗静电性、高导电率、摩擦系数小等特性,实现高性能聚烯烃复合材料轻量化目的。
The invention relates to a supported catalyst for producing wear-resistant anti-electrostatic polyolefins and a preparation method and application of the supported catalyst. According to the catalyst, an active ingredient is loaded to a composite support, and is a transition-metal catalyst; the composite support comprises a first ingredient and a second ingredient, wherein the first ingredient is a layered-structured graphite carbon material or a modified product thereof, and the second ingredient is a chain-shaped or rod-shaped structured fibrous material or a modified product thereof; the weight ratio of the first ingredient to the second ingredient is (0.01 to 100): 1, and the weight ratio of the sum of the weight of the first ingredient and the weight of the second ingredient to the weight of the active ingredient is (0.01 to 100): 1. Compared with the prior art, the catalyst provided by the invention can be used for polymerizing to obtain full-density polyolefin products, and the products are adjustable in molecular weight and have the maximum viscosity average molecular weight of 10,000,000. According to polyolefin composite materials prepared by the method, mechanical properties are substantially improved, characteristics such as excellent wear resistance, impact resistance and permanent anti-electrostatic property, high conductivity and small coefficient of friction are presented, and the aim that high-performance polyolefin composite materials are lightweight is achieved.