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首页> 外文期刊>Polymers >Development of Synergistic Antimicrobial Coating of p-Aramid Fibers Using Ag Nanoparticles and Glycidyltrimethylammonium Chloride (GTAC) without the Aid of a Cross-Linking Agent
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Development of Synergistic Antimicrobial Coating of p-Aramid Fibers Using Ag Nanoparticles and Glycidyltrimethylammonium Chloride (GTAC) without the Aid of a Cross-Linking Agent

机译：在没有交联剂帮助的情况下，利用银纳米颗粒和缩水甘油基三甲基氯化铵（GTAC）开发对芳族聚酰胺纤维的协同抗菌涂层

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Functional p-aramid fibers that can express antimicrobial activity were produced by simple processing of silver nanoparticles (AgNPs), which are well known as antimicrobial agents, by using glycidyltrimethylammonium chloride (GTAC), a quaternary ammonium salt. P-aramid fibers were treated with GTAC by the pad-dry-cure process and put into an Ag colloid solution for reactions at 40 °C for 90 min to prepare GTAC/AgNPs-treated p -aramid fibers. Through these processes, GTAC was used as a substitute for existing cross-linking agents. The changes in the degree of attachment of AgNPs to the surface of p -aramid fibers were determined using a scanning electron microscope according to parameters such as GTAC concentration, Ag colloid concentration, and reaction temperature. Through this study, the following results were obtained: (i) The tensile strength of AgNPs/GTAC-treated p -aramid fibers was found to be about 80% of that of untreated p -aramid fibers; (ii) Thermogravimetric analysis showed that the thermal stability of p -aramid fibers did not change much after GTAC/AgNPs treatment and (iii) Antimicrobial activity analysis showed that AgNPs/GTAC-treated p -aramid fibers exhibited superior antibacterial properties compared to untreated p -aramid fibers, which may or may not be the effect of GTAC or AgNPs, or both.
机译：可以表达抗微生物活性的功能性对位芳族聚酰胺纤维是通过使用季铵盐缩水甘油基三甲基氯化铵（GTAC）对众所周知的抗菌剂银纳米颗粒（AgNPs）进行简单加工而制得的。将对位芳族聚酰胺纤维通过板式干固化工艺用GTAC处理，并置于Ag胶体溶液中，在40°C下反应90分钟，以制备经GTAC / AgNPs处理的对位芳族聚酰胺纤维。通过这些过程，GTAC被用作现有交联剂的替代品。根据诸如GTAC浓度，Ag胶体浓度和反应温度的参数，使用扫描电子显微镜确定AgNP与对位芳族聚酰胺纤维表面的附着程度的变化。通过该研究，获得以下结果：（i）发现AgNPs / GTAC处理的对位芳族聚酰胺纤维的拉伸强度为未处理的对位芳族聚酰胺纤维的拉伸强度的约80％; （ii）热重分析表明，在GTAC / AgNPs处理后，对位芳纶纤维的热稳定性没有太大变化;（iii）抗菌活性分析表明，与未处理的对位芳纶相比，AgNPs / GTAC处理过的对位芳纶纤维表现出优异的抗菌性能-芳族聚酰胺纤维，可能会或可能不会影响GTAC或AgNP，或两者兼而有之。

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