Yue Huan, Yan Xin, Huang Chenghan, Zhang Hexin, Yang Jianming, Fang Liang, Kim Hee-Seon
School of Chemical & Environmental Engineering, Pingdingshan University, Pingdingshan 467000, China.
School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243032, China.
Molecules. 2024 Aug 2;29(15):3662. doi: 10.3390/molecules29153662.
The addition of two-dimensional inorganic nanomaterials can effectively enhance the properties of polyethylene (PE). In the present study, a series of high-performance PE/oleic acid (OA)-siloxene nanocomposites were prepared by in situ polymerization using OA-siloxene-supported Ziegler-Natta catalysts. Compared with the conventional Ziegler-Natta catalyst, the polymerization activity of the OA-siloxene-supported Ziegler-Natta catalyst was enhanced to 100 kg/mol-Ti•h, an increase of 56%. The OA-siloxene fillers exhibited excellent dispersion within the PE matrix through the in situ polymerization technique. Compared to pure PE, PE/OA-siloxene nanocomposites containing 1.13 wt% content of OA-siloxene showed 68.3 °C, 126%, 37%, and 46% enhancements in , breaking strength, modulus, and elongation at break, respectively.
二维无机纳米材料的添加可以有效提升聚乙烯(PE)的性能。在本研究中,使用油酸(OA)-硅烯负载的齐格勒-纳塔催化剂通过原位聚合制备了一系列高性能PE/油酸(OA)-硅烯纳米复合材料。与传统的齐格勒-纳塔催化剂相比,OA-硅烯负载的齐格勒-纳塔催化剂的聚合活性提高到了100 kg/mol-Ti•h,增幅为56%。通过原位聚合技术,OA-硅烯填料在PE基体中表现出优异的分散性。与纯PE相比,含有1.13 wt% OA-硅烯含量的PE/OA-硅烯纳米复合材料的熔点、断裂强度、模量和断裂伸长率分别提高了68.3 °C、126%、37%和46%。