scholarly journals Influence of reduced graphene oxide on flow behaviour, glass transition temperature and secondary crystallinity of plasticized poly(vinyl chloride)

RSC Advances ◽  
2020 ◽  
Vol 10 (49) ◽  
pp. 29247-29256 ◽  
Author(s):  
H. Akhina ◽  
Koduvayur A. Ramya ◽  
M. R. Gopinathan Nair ◽  
Allisson Saiter-Fourcin ◽  
Marie-Rose Garda ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Reduced Graphene Oxide ◽  
Vinyl Chloride ◽  
Rheological Behaviour ◽  
Flow Behaviour ◽  
Poly Vinyl Chloride ◽  
Reduced Graphene

Understanding the rheological behaviour of thermoplastic nanocomposites is important to obtain a concrete knowledge of their processability.

Effect of reduced graphene oxide on mechanical behavior of an epoxy adhesive in glassy and rubbery states

2021 ◽  
pp. 002199832110316
Author(s):  
Ata Khabaz-Aghdam ◽  
Bashir Behjat ◽  
EAS Marques ◽  
RJC Carbas ◽  
Lucas FM da Silva ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Ambient Temperature ◽  
Mechanical Behavior ◽  
Reduced Graphene Oxide ◽  
Epoxy Adhesive ◽  
Ultimate Strain ◽  
Reduced Graphene

The mechanical behavior of an adhesive, in neat state and reinforced with up to 0.5 wt% of reduced graphene oxide (RGO) was investigated here. Tests were done at temperatures between the ambient temperature and the glass transition temperature ( Tg[Formula: see text] of the adhesive. Using a metal mold, cured plates of the neat and RGO reinforced epoxy adhesive were prepared. The adhesive powder and the bulk dumbbell-shaped specimens, obtained from cured adhesive plates, were subjected to differential scanning calorimetry (DSC) and tensile tests, respectively, to obtain the Tg as well as mechanical properties of the adhesives. The results indicated that adding RGO up to 0.5 wt% increased the glass transition temperature, the modulus of elasticity, and the strength of the adhesive. It was found that the presence of RGO reduced the adhesive’s strain at the break at the ambient temperature. However, at high temperatures, near the Tg, the ultimate strain of RGO-reinforced adhesives decreased slightly when compared to the ultimate strain of the neat specimens. This explains the reduction in toughness at ambient temperature obtained by adding RGO and the increase at high temperatures. Finally, the failure morphology of the neat and RGO-reinforced adhesive specimens was investigated using microscopic imaging of the specimens’ failure cross-sections, which supported and justified the experimental observations.

Synthesis of zinc hydroxystannate/reduced graphene oxide composites using chitosan to improve poly(vinyl chloride) performance

2021 ◽  
Vol 256 ◽  
pp. 117575
Author(s):  
Zhiyong Huo ◽  
Hongjuan Wu ◽  
Qingyi Song ◽  
Zhaoxi Zhou ◽  
Tian Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Vinyl Chloride ◽  
Poly Vinyl Chloride ◽  
Reduced Graphene ◽  
Zinc Hydroxystannate ◽  
Oxide Composites

Development of plasticized poly (vinyl chloride)/reduced graphene oxide nanocomposites for energy storage applications

2019 ◽  
Vol 73 ◽  
pp. 250-257 ◽  
Author(s):  
H. Akhina ◽  
P. Mohammed Arif ◽  
M.R. Gopinathan Nair ◽  
K. Nandakumar ◽  
Sabu Thomas
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Reduced Graphene Oxide ◽  
Vinyl Chloride ◽  
Poly Vinyl Chloride ◽  
Reduced Graphene ◽  
Energy Storage Applications

scholarly journals Recycled Glass Fibres from Wind Turbines as a Filler for Poly(Vinyl Chloride)

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Krzysztof Lewandowski ◽  
Katarzyna Skórczewska ◽  
Kazimierz Piszczek ◽  
Włodzimierz Urbaniak
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Transition Temperature ◽  
Composite Materials ◽  
Glass Transition Temperature ◽  
Impact Strength ◽  
Vinyl Chloride ◽  
Turbine Blades ◽  
Wind Turbine Blades ◽  
Poly Vinyl Chloride

This paper presents the method of using glass fibre with carbon deposit (GFCD), derived from the recycling of wind turbine blades, for production of composite materials based on poly(vinyl chloride) (PVC). Composite materials containing from 1 to 15 wt% of GFCD were produced by plasticising with a plastographometer and then by pressing. The processability and performance were studied. Mechanical properties in static tension, impact strength, and thermal stability were determined. Glass transition temperature was also determined by means of the dynamic mechanical thermal analysis (DMTA). The GFCD percentage of up to 15 wt% was found not to slightly affect the change in the processability, thermal stability, and glass transition temperature. PVC/GFCD composite materials are characterised by a definitely greater elastic modulus with simultaneous decrease of tensile strength and impact strength. An analysis with scanning electron microscopy revealed good adhesion between the filler and the polymer matrix.

Scale-up of Poly[(Vinyl Chloride)-b-(n-Butyl Acrylate)-b-(Vinyl Chloride)] prepared by Living Radical Polymerization

2006 ◽  
Vol 514-516 ◽  
pp. 975-979 ◽  
Author(s):  
Jorge F.J. Coelho ◽  
Patricia Alves ◽  
Joana Monteiro ◽  
M. Margarida C.A. Castro ◽  
Mariana Abreu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Molecular Weight ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Radical Polymerization ◽  
Vinyl Chloride ◽  
Scale Up ◽  
Living Radical Polymerization ◽  
Poly Vinyl Chloride

Vinyl Chloride (VCM) based copolymers were synthesised by using Living Radical Polymerization. The obtained materials were characterized by determining their molecular weight, glass transition temperature and mechanical properties after processing in industrial equipments. Their chemical composition was evaluated by using NMR.

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