Title: Effect of aluminium nitrate hydrate on the crystalline, thermal and mechanical properties of poly(vinyl alcohol) film
Page Range: p.555-562
Author(s): Yong Luo; Xiancai Jiang; Weiying Zhang; Xiao Li
File size:
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 23
Issue No: No.8
Abstract
The effect of aluminium nitrate hydrate (Al(NO3)3(.)9H2O) on the crystalline, thermal and mechanical properties of PVA was studied in this paper. The interaction between Al(NO3)3(.)9H2O and PVA was investigated by Fourier transform infrared (FT-IR) spectroscopy. The influence of Al(NO3)3(.)9H2O on the crystalline, thermal, and mechanical properties of PVA was studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and tensile testing, respectively. The results indicated that Al(NO3)3(.)9H2O could form interaction with the hydroxyl group on PVA chain. The XRD studies revealed that the crystallites of PVA were destroyed by Al(NO3)3(.)9H2O. DSC studies showed that Al(NO3)3(.)9H2O could increase the flexibility of PVA chains and decrease the Tg of PVA. Tensile testing showed that after the addition of Al(NO3)3(.)9H2O the tensile strength of PVA film decreased and elongation at break increased. All these results show that Al(NO3)3(.)9H2O has a high plasticising efficiency for PVA. However, Al(NO3)3(.)9H2O is a Lewis acid and the acidic property of Al(NO3)3(.)9H2O would cause the significant decrease of the thermal stability of PVA. 23 Refs.
Related reading
More journal reading and science coverage connected to this topic.
Combined temperature and moisture effect on the monotonic and fatigue strengths of sandwich beams with glass-polypropylene faces and aluminum foam cores
Title: Combined temperature and moisture effect on the monotonic and fatigue strengths of sandwich beams with glass-polypropylene faces and aluminum foam cores Page Range:…
Nonlinear dynamic characteristics of PZT/polymer gripper
Title: Nonlinear dynamic characteristics of PZT/polymer gripper Page Range: p.79-84 Author(s): Jia Xu; Yi-Ran Li; Hai-Bo Wang; Zhi-Wen Zhu File size: Download the pdf…
Enhancement mechanism for carbohydrate polymer green lubricant
Title: Enhancement mechanism for carbohydrate polymer green lubricant Page Range: p.85-90 Author(s): Shih-Chen Shi; Jhen-Yu Wu File size: Download the pdf (subscribers only) Buy…