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Updated: May 5, 2026

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Published on: August 4, 2018

基于基烯基甲基纤维素/贝的新型抗微生物生物宏分子 CNT/ZnO-NP 作为包装膜的潜在应用

Salah A A Mohamed¹, Hebat-Allah S Tohamy², Mohamed El-Sakhawy²

¹Packing and Packaging Materials Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt.

International journal of biological macromolecules

|March 3, 2025

概括

这项研究开发了一种新型的抗微生物包装膜,使用基甲基纤维素 (HPMC) 和,增强了碳纳米管 (CNT) 和氧化纳米粒子 (ZnO-NPs). 这种新材料提供了更好的强度和抗菌性能,为以石油为基础的塑料提供了可持续的替代品.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
纳米技术纳米技术

背景情况:

基于石油的塑料带来了环境挑战.
需要可持续和功能性的包装材料.
对于提高食品安全和保质期而言,抗菌性质是可取的.

研究的目的:

从生物巨分子开发一种新的抗微生物包装膜.
取代传统的以石油为基础的塑料包装.
使用碳纳米管 (CNT) 和氧化纳米颗粒 (ZnO-NPs) 来增强薄膜的性能.

主要方法:

交叉连接基甲基纤维素 (HPMC) 与贝.
将CNT和ZnO-NP的不同度纳入HPMC/板矩阵.
使用FTIR,XRD和SEM进行表征.
评估机械性能 (拉力强度,扬模量),热稳定性和空气透性.
对抗 Candida albicans,B. mycoides 和 E. coli 的抗菌活性的评估.

主要成果:

通过FTIR,XRD和SEM证实了CNTs和ZnO-NP的成功结合.
提高了HPMC/贝/CNTs/ZnO-NPs膜的热稳定性.
显著提高拉伸强度 (104.48%),模量 (203.19%) 和最大负载时的应力 (86%),使用0.125%的ZnO-NPs.
已证明对测试的微生物具有广泛的抗菌活性.
与纯HPMC薄膜相比,提高了空气透性和机械性能.

结论:

开发的HPMC/贝/CNTs-ZnO-NPs薄膜是石油基塑料的一个有希望的可持续替代品.
纳米材料的结合显著增强了膜的机械和抗菌性能.
这种新型生物材料有可能用于先进的食品包装应用.

关键词:

可生物降解的聚合物.碳纳米管的使用方法氧烯甲基纤维素酸.包装片是用来包装的贝的贝,就是贝.在ZnO-NPs中,

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