Abstract

A biocompatible thermoelastoplastic, poly(styrene-block-isobutylene-block-styrene), was incorporated with carbon nanotubes. The resulting nanocomposites containing 1, 2, and 4% filler were analyzed by optical microscopy and scanning electronic microscopy, and their strength, elastic-strain properties, contact angle with water, and electrical conductivity were evaluated. Partial heterogeneity in the nanofiller distribution in the macromolecular matrix was revealed. With an increase in the nanotube concentration, the tensile strength increases nonlinearly and the extension ability decreases. Statistically significant differences in the contact angle between the control samples and samples containing 4% carbon nanoparticles were revealed (94.1°± 1.7°and 84.4°± 2.3°, respectively). The electrical conductivity of the samples increases with an increase in the content of nanoparticles. The possibility and conditions of preparing the new promising material for cardiovascular surgery were determined.

中文翻译：

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基于生物相容性热弹塑性和碳纳米颗粒的纳米复合材料，用于心血管外科

摘要

生物相容性热弹塑性聚（苯乙烯嵌段-异丁烯嵌段）-苯乙烯）与碳纳米管结合在一起。通过光学显微镜和扫描电子显微镜分析所得的含有1、2和4％填料的纳米复合材料，并评估它们的强度，弹性应变性能，与水的接触角和电导率。揭示了高分子基质中纳米填料分布的部分不均一性。随着纳米管浓度的增加，抗张强度非线性增加并且延伸能力降低。对照样品和含4％碳纳米颗粒的样品之间的接触角有统计学显着差异（分别为94.1°±1.7°和84.4°±2.3°）。样品的电导率随纳米颗粒含量的增加而增加。