Effects of Plasticizers on Mechanical Properties, Oxygen Permeability, and Microstructural Characteristics of HPMC/Beeswax Composite Film

IF 0.4 Q4 NANOSCIENCE & NANOTECHNOLOGY Nano Hybrids and Composites Pub Date : 2021-04-06 DOI:10.4028/www.scientific.net/NHC.32.25

Thi Luong Nguyen, Pham Khanh Van Nguyen, Hoc Thang Nguyen, V. K. Nguyen, T. Pham, Thanh-Tung Nguyen

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引用次数: 4

Abstract

The ability to plasticize Hydroxypropyl Methyl Cellulose/Beeswax (HPMC/BW) composites depends on plasticizers and their concentration. This paper conducted studying on the impacts of plasticizers to HPMC/BW properties. The plasticizers were used in this research included Glycerol (G), Propylene Glycol (PG), and Polyethylene Glycol 400 (PEG 400) which had the concentration changed in range of 1-3%. HPMC/BW composite films incorporated with 2% of plasticizers formed films with the best characteristics among three tested concentration. Tensile strength and elastic modulus of films were decreased when adding plasticizers, whereas elongation at break were increased. Therefore, it caused an increase in oxygen permeability of HPMC/BW films in comparison with the control film. However, Glycerol showed the lowest Oxygen Permeability (OP) values compared to other composite films. The films were evaluated its microstructural quality using method of scanning electron microscopy (SEM) which had the effects of plasticizers and their efficiencies of plasticizing polymer networks.

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增塑剂对HPMC/蜂蜡复合膜力学性能、透氧性及微观结构的影响

羟丙基甲基纤维素/蜂蜡(HPMC/BW)复合材料的塑化能力取决于增塑剂及其浓度。本文研究了增塑剂对HPMC/BW性能的影响。本研究使用的增塑剂包括甘油(G)、丙二醇(PG)和聚乙二醇400 (PEG 400)，其浓度变化范围为1-3%。添加2%增塑剂的HPMC/BW复合膜在三种浓度下的膜性能最好。增塑剂的加入降低了薄膜的拉伸强度和弹性模量，提高了断裂伸长率。因此，与对照膜相比，HPMC/BW膜的透氧性增加。然而，与其他复合膜相比，甘油的氧透性(OP)值最低。利用扫描电子显微镜(SEM)对薄膜的微观结构质量进行了评价，分析了增塑剂对聚合物网络增塑率的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nano Hybrids and Composites NANOSCIENCE & NANOTECHNOLOGY-

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