The influence of halloysite on the physicochemical, mechanical and biological properties of polyurethane-based nanocomposites

被引：9

作者：

Mrowka, Maciej ^{[1
]}

Szymiczek, Malgorzata ^{[1
]}

Machoczek, Tomasz ^{[1
]}

Lenza, Joanna ^{[2
]}

Matusik, Jakub ^{[3
]}

Sakiewicz, Piotr ^{[4
]}

Skonieczna, Magdalena ^{[5
,6
]}

机构：

[1] Silesian Tech Univ, Fac Mech Engn, Dept Theoret & Appl Mech, Konarskiego 18A, PL-44100 Gliwice, Poland

[2] Krahn Chem Polska Sp Zoo, Marcelinska 90, PL-60324 Poznan, Poland

[3] AGH Univ Sci & Technol, Fac Geol Geophys & Environm Protect, Dept Mineral Petrog & Geochem, Mickiewicza 30, PL-30059 Krakow, Poland

[4] Silesian Tech Univ, Fac Mech Engn, Dept Engn Mat & Biomat, Konarskiego 18A, PL-44100 Gliwice, Poland

[5] Silesian Tech Univ, Biotechnol Ctr, Krzywoustego 8, PL-44100 Gliwice, Poland

[6] Silesian Tech Univ, Dept Syst Biol & Engn, Akad 16, PL-44100 Gliwice, Poland

来源：

POLIMERY | 2020年 / 65卷 / 11-12期

关键词：

nanocomposites; thermoplastic polyurethanes; halloysite; mechanical properties; cytotoxicity tests; degradation; NANOTUBES; CAPACITY; POLYMERS;

D O I：

10.14314/polimery.2020.11.5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The impact of the addition of the nanofiller - halloysite - on the mechanical, physicochemical and biological properties of a nanocomposite, in which thermoplastic polyurethane fulfilled the role of the matrix was investigated. The nanocomposite was obtained by extrusion in three variants with 1, 2 and 3 wt% halloysite. The nanostructure of the obtained materials was confirmed using Atomic Force Microscopy (AFM). Based on the mechanical tests carried out, it was proven that the obtained nanocomposites were characterized by a tensile modulus greater than the polyurethane constituting the matrix. The density and hardness of the nanocomposites had changed within error limits compared to unmodified polyurethane. Biological tests showed no cytotoxicity of all the tested materials to normal human dermal fibroblasts (NHDF). Degradation tests were carried out in artificial plasma and showed that samples with 2 wt% halloysite addition had the best ratio of tensile strength and elongation at break to elasticity modulus.

引用

页码：784 / 791

页数：8

共 30 条

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