Preparation of tetra-needle-like zinc oxide whiskers/natural rubber antibacterial medical composites

被引：0
|
作者：
Chen X. [1 ]
Jian L. [1 ]
Zhang R. [1 ]
机构：
[1] College of Chemistry and Materials, Longyan University, Longyan
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2021年 / 38卷 / 08期
关键词：
Antibacterial properties; Mechanical properties; Medical composites; Natural rubber; Natural rubber latex; Tetra-needle-like zinc oxide whiskers;
D O I：
10.13801/j.cnki.fhclxb.20201102.001
中图分类号：
学科分类号：
摘要：
The sodium stearate-tetra-needle-like zinc oxide whiskers (T-ZnOw)/natural rubber (NR) antibacterial medical composites were prepared by introducing the sodium stearate-T-ZnOw ultrasonic dispersion into natural rubber latex (NRL) matrix. The comprehensive mechanical properties, antibacterial properties and thermal stability properties of the composites were systematically studied. The results show that when sodium stearate-T-ZnOw loading of 3wt%, the mechanical properties and thermal stability properties of the composites achieve optimum results. Compared with the pure NR, the shore a hardness, modulus at 300%, tensile strength, tear strength and elongation at break of composites are increased by 8.6%, 25.4%, 20.3%, 25.6% and 6.4%, respectively; The initial thermal degradation temperature (T0) and the termination thermal degradation temperature (Tf) of the composites are increased by 21.2℃ and 5.9℃. When the content of sodium stearate-T-ZnOw exceeds 3wt%, it can inhibit the growth of Escherichia coli, Staphylococcus aureus, Acinetobacter baumannii and Staphylococcus epidermidis in natural rubber latex. It can enter bacterial cells, resulting in cell wall damage, cell leakage, cell death. © 2021, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
引用
收藏
页码：2694 / 2705
页数：11
相关论文
共 50 条
  • [31] Rubber vulcanized or thermoplastic-Determination of stress-strain: GB/T 528-2009, (2009)
  • [32] Rubber vulcanized or thermoplastic-Determination of tear stress-strain: GB/T 529-2008, (2008)
  • [33] WU Z F, LI S J., Infrared spectra characteristics of zinc hydroxide and zinc oxide, Chinese Journal Spectroscopy Laboratory, 29, 4, pp. 2172-2175, (2012)
  • [34] WANG X M, ZHENG T, MA L, Et al., Optimization of extract process of total flavonoids from blueberry leaves by ultrasonic method, Chemistry & Bioengineering, 32, 5, pp. 40-42, (2015)
  • [35] SONG Q P, DING C M., Study on antibacterial properties of microsphere-chitosan silver complex, Journal of Anhui University of Technology and Science, 25, 1, pp. 5-7, (2010)
  • [36] YANG J, LIN Y X, LIU X Y, Et al., Biosynthesis of silver nanoparticles by the cell-free extracts of Mariannaea sp. HJ and their antimicrobial characteristics research, Acta Microbiologica Sinica, 60, 4, pp. 749-758, (2020)
  • [37] XIANG R, DING D B, FAN L L, Et al., Antibacterial mechanism and safety of zinc oxide, Chinese Journal of Tissue Engineering Research, 18, 3, pp. 470-475, (2014)
  • [38] BHADRA P, MITRA M K, DAS G C, Et al., Interaction of chitosan capped ZnO nanorods with Escherichia coli, Materials Science and Engineering: C, 31, 5, pp. 929-937, (2011)
  • [39] RAGHUPATHI K R, KOODALI R T, MANNA A C., Size-dependent bacterial growth inhibition and mechanism of antibacterial activity of zinc oxide nanoparticles, Langmuir, 27, 7, pp. 4020-4028, (2011)
  • [40] ZHANG L, DING Y, POVEY M, Et al., ZnO nanofluids-A potential antibacterial agent, Progress in Natural Science, 18, 8, pp. 939-944, (2008)
12345