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| Preparation and Properties of Poly（vinyl alcohol）/Chitosan Blend Bio-nanocomposites Reinforced by Cellulose Nanocrystals | |
| 作者姓名： | Susan Azizi Mansor Bin Ahmad Nor Azowa Ibrahim Mohd Zobir Hussein Farideh Namvar |
| 作者单位： | Department of Chemistry, Faculty of Science, University Putra Malaysia;Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, University Putra Malaysia;Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia;Mashhad Branch, Islamic Azad University |
| 基金项目： | financially supported by Universiti Putra Malaysia(research grant RUGS 9199840) |
| 摘 要： | The aim of this paper is to report the effect of the addition of cellulose nanocrystals（CNCs） on the mechanical, thermal and barrier properties of poly（vinyl alcohol）/chitosan（PVA/Cs） bio-nanocomposites films prepared through the solvent casting process. The characterizations of PVA/Cs/CNCs films were carried out in terms of X-ray diffraction（XRD）, transmission electron microscopy（TEM）, scanning electron microscopy（SEM）, thermogravimetric analysis（TGA and DTG）, oxygen transmission rate（OTR）, and tensile tests. TEM and SEM results showed that at low loading levels, CNCs were dispersed homogenously in the PVA/Cs matrix. The tensile strength and modulus in films increased from 55.1 MPa to 98.4 MPa and from 395 MPa to 690 MPa respectively, when CNCs content went from 0 wt% to 1.0 wt%. The thermal stability and oxygen barrier properties of PVA/Cs matrix were best enhanced at 1.0 wt% of CNCs loading. The enhanced properties attained by incorporating CNCs can be beneficial in various applications. |
| 关 键 词： | 纳米晶体 聚乙烯醇 PVA 纳米复合材料 纤维素 壳聚糖 生物 CNC控制器 |
Preparation and properties of poly(vinyl alcohol)/chitosan blend bio-nanocomposites reinforced by cellulose nanocrystals |
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| Susan Azizi,Mansor Bin Ahmad,Nor Azowa Ibrahim,Mohd Zobir Hussein,Farideh Namvar.Preparation and properties of poly(vinyl alcohol)/chitosan blend bio-nanocomposites reinforced by cellulose nanocrystals[J].Chinese Journal of Polymer Science,2014,32(12):1620-1627. | |
| Authors: | Susan Azizi Mansor Bin Ahmad Nor Azowa Ibrahim Mohd Zobir Hussein Farideh Namvar |
| Institution: | 1. Department of Chemistry, Faculty of Science, University Putra Malaysia, UPM Serdang, 43400, Selangor, Malaysia 2. Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, University Putra Malaysia, UPM Serdang, 43400, Selangor, Malaysia 3. Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, UPM Serdang, 43400, Selangor, Malaysia 4. Mashhad Branch, Islamic Azad University, Mashhad, Iran |
| Abstract: | The aim of this paper is to report the effect of the addition of cellulose nanocrystals (CNCs) on the mechanical, thermal and barrier properties of poly(vinyl alcohol)/chitosan (PVA/Cs) bio-nanocomposites films prepared through the solvent casting process. The characterizations of PVA/Cs/CNCs films were carried out in terms of X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA and DTG), oxygen transmission rate (OTR), and tensile tests. TEM and SEM results showed that at low loading levels, CNCs were dispersed homogenously in the PVA/Cs matrix. The tensile strength and modulus in films increased from 55.1 MPa to 98.4 MPa and from 395 MPa to 690 MPa respectively, when CNCs content went from 0 wt% to 1.0 wt%. The thermal stability and oxygen barrier properties of PVA/Cs matrix were best enhanced at 1.0 wt% of CNCs loading. The enhanced properties attained by incorporating CNCs can be beneficial in various applications. |
| Keywords: | Bio-nanocomposite Poly(vinyl alcohol)/chitosan Cellulose nanocrystals Mechanical properties Thermal properties |
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