Effects of diffusion of a naturally-derived plasticizer
A natural plasticizer cardanol derivatives glycidyl ether (CGE) was synthesized and employed as a plasticizer for the poly(vinyl chloride). The effect of CGE on thermal degradation of PVC films and… Expand 8 PDF Save Alert Effect of the individual and combined use of cardanol-based plasticizers and epoxidized soybean oil on the properties of PVC
Effects of diffusion of a naturally-derived plasticizer
Tensile properties and hardness changes were used to monitor the macroscopic effects of plasticizer diffusion. Soft PVC obtained by partial substitution of DEHP by CA showed a significant modification of mechanical properties related to a higher plasticizer evaporation during ageing tests.
Effects of diffusion of a naturally-derived plasticizer
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Natural-based plasticizers and biopolymer films: A review
The effect of polyols such as GLY, EG, PEG and PG on mechanical and surface properties of chitosan films was evaluated considering the plasticizer volatility [36], since it may influence film properties and stability during application and storage, i.e. the less volatile the plasticizer, the better it is for use. Besides, considering the
Effects of diffusion of a naturally-derived plasticizer
Tensile properties and hardness changes were used to monitor the macroscopic effects of plasticizer diffusion. Soft PVC obtained by partial substitution of DEHP by CA showed a significant...
- How does temperature affect the diffusion of plasticizers?
- The diffusion of plasticizers from PVC to surrounding media increases with temperature. In polymers, diffusion is an activated process. As the temperature is increased, the diffusion coefficient increases, indicative of a positive activation energy for diffusion.
- Does filler increase plasticizer diffusion?
- The results indicated that the filler addition in the polymer has a significant effect by increasing its flow rate. This result shows that the addition of filler reduces the plasticizer diffusion. Melt flow index measurements of p-PVC composites having (a) undoped, (b) boric acid, (c) boron clay, and (d) sintered calcined boron clay.
- Do inorganic fillers affect plasticizer diffusion?
- The effect of inorganic fillers on plasticizer diffusion was evaluated by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), zeta potential and mechanical analysis, melt flow index (MFI) measurements, diffusion calculations, and diffusion kinetics.
- How do plasticizers migrate from PVC composites?
- In PVC composites, the harmony between the plasticizer, inorganic additives, and the PVC chain, and the harmony in the geometric and surface properties (Zeta Potential, Mobility, and Conductivity) have been effective on the migration of the plasticizer from the PVC.
- How does loss of plasticizer cause a concentration gradient?
- Loss of plasticizer from the surface causes mass loss at the surface and creates a concentration gradient. Other evaporating or degrading components are neglected. In this case, the diffusion coefficient of the plasticizers can be calculated from the mass loss data.
- What is the Order of diffusion coefficient of plasticizer evaporation at 160°C?
- The order of the diffusion coefficient at 160°C was determined as the films having boric acid > undoped > talc = sintered calcined boron waste clay > zircon oxide > boron clay. Plasticizer evaporation is a slow process at low temperatures and takes years to study under such conditions. Therefore, accelerated conditions were used.
