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首页> 外文期刊>Journal of Applied Polymer Science >Radiopaque, barium sulfate-filled biomedical compounds of a poly(ether-block-amide) copolymer
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Radiopaque, barium sulfate-filled biomedical compounds of a poly(ether-block-amide) copolymer

机译：聚（醚-嵌段-酰胺）共聚物的不透射线，填充硫酸钡的生物医学化合物

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摘要

Various radiopaque compounds of a poly (ether-block-amide) copolymer resin filled with fine barium sulfate particles were prepared by melt mixing. Material properties of the filled compounds were investigated using various material characterization techniques, including thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic rheometry, uniaxial tensile test, and dynamic mechanical thermal analysis (DMTA). The effects of the filler and its concentration on the measured material properties are evaluated. It has been found that in addition to its well-known X-ray radiopacity, the filler is quite effective in reinforcing some mechanical properties of the copolymer, including modulus of elasticity and yield strength. More interestingly, it has been observed that at: low loading concentrations near 10 wt %, the filler may also act as a rigid, inorganic toughener for the copolymer by improving the postyield material extensibility of strain hardening against ultimate material fracture. (C) 2008 Wiley Periodicals, Inc.
机译：通过熔融混合制备填充有细硫酸钡颗粒的聚（醚-嵌段-酰胺）共聚物树脂的各种不透射线的化合物。使用各种材料表征技术，包括热重分析（TGA），差示扫描量热法（DSC），动态流变学，单轴拉伸试验和动态机械热分析（DMTA），研究了填充化合物的材料性能。评估了填料及其浓度对所测材料性能的影响。已经发现，除了众所周知的X射线不透性之外，填料在增强共聚物的某些机械性能（包括弹性模量和屈服强度）方面非常有效。更有趣的是，已经观察到：在接近10 wt％的低加载浓度下，填料还可以通过改善应变硬化对最终材料断裂的屈服后材料的延伸性，充当共聚物的刚性无机增韧剂。 （C）2008 Wiley期刊公司

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