Hussain, Manwar
2019-01-21T07:33:52Z
2019-01-21T07:33:53Z
2018-09
INTERNATIONAL JOURNAL OF POLYMER SCIENCE, v. 2018, Article no. 8527693
1687-9422
https://www.hindawi.com/journals/ijps/2018/8527693
https://repository.hanyang.ac.kr/handle/20.500.11754/81392
Water-soluble polymers such as poly(vinyl alcohol) (PVA) and poly(ethylene glycol) (PEG) and their nanocomposites with graphene were prepared by using a solution mixing and casting technique. The effect of different PEG loadings was investigated to determine the optimum blend ratio. The films were characterized using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analyzer (TGA) methods. Also, the mechanical properties including tensile strength and elongation at break were measured using a universal tensile testing machine. FTIR results confirmed the formation of the H-bond between PEG and PVA. DSC studies revealed that PEG has a significant plasticization effect on PVA as seen by the drop in the glass transition temperature (T-g). The blend with 10 wt% PEG loading was found to be the optimum blend because of good compatibility as shown by FTIR and SEM results and improved thermal properties. PVA/PEG (10%) nanocomposites were prepared using graphene as a nanofiller. It was found that the elongation at break increased by 62% from 147% for the PVA/PEG (10%) blend to 209% for the nanocomposite with graphene loading of 0.2 wt%. The experimental values of tensile strength were compared using the predictive model of Nicolais and Narkis.
The authors wish to acknowledge the assistance of Deanship of Scientific Research, King Fahd University of Petroleum and Minerals, for their support for providing adequate funds and infrastructure under Project no. FT161010.
en_US
HINDAWI LTD
POLYVINYL ALCOHOL/STARCH BLENDS
POLY(VINYL ALCOHOL)
OPTICAL-PROPERTIES
CROSS-LINKING
NANOCOMPOSITES
COMPOSITES
BEHAVIOR
GLYCOL
POLYMERS
GLYCEROL
Preparation of Miscible PVA/PEG Blends and Effect of Graphene Concentration on Thermal, Crystallization, Morphological, and Mechanical Properties of PVA.PEG(10wt%) Blend
Article
8527693
2018
10.1155/2018/8527693
1-10
INTERNATIONAL JOURNAL OF POLYMER SCIENCE
Falqi, Fahad H.
Bin-Dahman, Osamah A.
Hussain, M.
Al-Harthi, Mamdouh A.
2018007168
E
COLLEGE OF ENGINEERING SCIENCES[E]
DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING
manwarh