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当前位置: 首页 > 文章 > 核壳结构nano-CaCO_3/POE复配体系改性渔用聚乙烯复合材料的制备及性能 海洋渔业 2016 (6) 670-679
Position: Home > Articles > Preparation and performance of fishery polyethylene composites modified by core-shell structure nano-CaCO_3/POE Marine Fisheries 2016 (6) 670-679

核壳结构nano-CaCO_3/POE复配体系改性渔用聚乙烯复合材料的制备及性能

作  者：
曾桂华;陈龙;闵明华;王鲁民
单  位：
农业部东海与远洋渔业资源开发利用重点实验室中国水产科学研究院东海水产研究所;东华大学材料科学与工程学院纤维材料改性国家重点实验室
关键词：
纳米复合材料;渔用聚乙烯;纳米碳酸钙;乙烯辛烯共聚物;力学性能
摘  要：
以纳米碳酸钙/乙烯辛烯共聚物(nano-CaCO_3/POE)复配体系为改性剂,采用两种共混工艺,调节nano-CaCO_3/POE复配体系在渔用高密度聚乙烯(HDPE)基体中的含量,制备了核壳结构nano-CaCO_3/POE复配体系改性渔用聚乙烯三元复合材料(nano-CaCO_3/POE/HDPE),研究了共混工艺、复配体系配比及其含量对nano-CaCO_3/POE/HDPE三元纳米复合材料微观形态结构和宏观力学性能的影响。结果表明,当复配体系中nano-CaCO_3和POE质量比为1∶4时,两步法共混工艺可使nano-CaCO_3与POE在聚乙烯基体中形成nanoCaCO_3为核、POE为壳的核壳结构,且该核壳结构由POE包裹2~3颗nano-CaCO_3粒子组成,尺寸为100~200 nm,均匀分散于聚乙烯基体中。此外,当核壳结构nano-CaCO_3/POE复配体系的含量为5%时,所制备的nano-CaCO_3/POE/HDPE三元复合材料的综合力学性能最优,与纯HDPE相比,其断裂强度、屈服强度和断裂伸长率分别提高了37.2%、5.1%和27.0%。
译  名：
Preparation and performance of fishery polyethylene composites modified by core-shell structure nano-CaCO_3/POE
作  者：
ZENG Gui-hua;CHEN Long;MIN Ming-hua;WANG Lu-min;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Material Science and Engineering,Donghua University;Key Laboratory of East China Sea & Oceanic Fishery Resources Exploitation and Utilization of Ministry of Agriculture,East China Sea fisheries Research Institute,Chinese Academy of Fishery Sciences;
关键词：
nano-composites;;fishery polyethylene;;nano calcium carbonate;;ethylene-octene copolymer;;mechanical properties
摘  要：
High density polyethylene( HDPE) is widely used in fishery for its light weight,excellent wear resistance and low price. With the development of distant water fishery,the fishing materials have a higher demand for its overall performance,especially toughness. In an attempt to solve the above problems,nanosize calcium carbonate( nano-CaCO_3) and ethylene-octene copolymer( POE) composites were prepared firstly,and then used to modify the HDPE. The nano-CaCO_3/ POE / HDPE ternary composites were prepared by mixing nano-CaCO_3/POE with HDPE at different mass ratios by two different blending processes. The effects of the blending processes,mass ratios of nano-CaCO_3/POE,and the mass ratios of nano-CaCO_3/POE in the ternary composites on the properties of the ternary composites were investigated systematically. It was observed that the distribution of nano-CaCO_3/POE composites were more homogeneous in the ternary composites fabricated by the two-step method. And the nano-CaCO_3/POE nanoparticles with core-shell structure of 100-200 nm in size were well distributed in HDPE when the mass ratio of nano-CaCO_3 and POE was 1 ∶ 4. In addition,the ternary composites obtained optimal mechanical properties when the mass ratio of nano-CaCO_3/POE in the ternary composites was 5%. The fracture strength,yield strength and elongation of break increased by 37. 2%,5. 1%,and 27. 0%,compared with pure HDPE,respectively.

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