| 四针状氧化锌晶须/天然橡胶抗菌医用复合材料的制备 |
| |
| 引用本文： | 陈晰,简璐璐,张锐明.四针状氧化锌晶须/天然橡胶抗菌医用复合材料的制备[J].复合材料学报,2021,38(8):2694-2705. |
| |
| 作者姓名： | 陈晰 简璐璐 张锐明 |
| |
| 作者单位： | 龙岩学院 化学与材料学院，龙岩 364000 |
| |
| 基金项目： | 国家级大学生创新创业训练计划项目(201911312011)；福建省本科高校一般教育教学改革研究项目(创新创业教育教学改革项目)(FBJG20180119)；龙岩市科技计划项目(2018LYF2008) |
| |
| 摘 要： | 将硬脂酸钠改性四针状氧化锌晶须(Sodium stearate-T-ZnOw)超声分散液引入天然胶乳(NRL)基体中，制备了绿色环保的Sodium stearate-T-ZnOw/橡胶(NR)抗菌医用复合材料。系统研究了Sodium stearate-T-ZnOw/NR复合材料的综合力学性能、抗菌性能和热稳定性能。结果表明:当Sodium stearate-T-ZnOw含量达3wt%时，Sodium sterate-T-ZnOw/NR复合材料的综合力学性能，相比纯胶，邵尔A硬度，300%定伸应力，拉伸强度，撕裂强度，断裂伸长率，提高了8.6%、25.4%、20.3%、25.6%、6.4%。此时，复合材料的热稳定性能也达到了最大值，相比纯胶，复合材料的起始热降解温度(T0)和终止热降解温度(Tf)分别比纯胶的T0和Tf提高了21.2℃和5.9℃。当Sodiumstearate-T-ZnOw含量超过3wt%时，其能在天然胶乳中充分发挥抑制大肠杆菌、金葡萄球菌、鲍曼不动杆菌、表皮葡萄球菌生长的能力，它可以进入细菌细胞，导致细胞壁被破坏，细胞内成分泄漏，细胞死亡。
|
| 关 键 词： | 四针状氧化锌晶须 橡胶 天然胶乳 力学性能 抗菌性能 医用复合材料 |
| 收稿时间： | 2020-08-27 |
Preparation of tetra-needle-like zinc oxide whiskers/natural rubber antibacterial medical composites |
| |
| Affiliation: | College of Chemistry and Materials, Longyan University, Longyan 364000, China |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《复合材料学报》浏览原始摘要信息 |
|
点击此处可从《复合材料学报》下载全文 |
|
