Effect of Plasticizer on the Morphology and Foaming
In this work, ethylene glycol (EG) was used as a typical plasticizer in the thermoplastic processing of PVA foams and the effect of plasticizer content on foam morphology was investigated, and other factors that affect foaming behavior and foam properties, such as gas temperature, foaming temperature and holding time, would be mentioned in
Controlling the morphology of block copolymers via plasticizer
At the same time, the thermodynamic selectivity of the diluent towards the two blocks can exert a substantial effect on the morphology of the material. In this context, a systematic investigation of the phase behavior of styrene-isoprene copolymer diluted with various di-alkyl phthalates was conducted to a series of commercially important plasticizers of varying selectivity.
Effects of Nano Alumina and Plasticizers on Morphology, Ionic
Nano alumina (Al 2 O 3) was used as filler, and dioxyphthalate (DOP) and polyethylene glycol (PEG) applied as plasticizers. Various concentrations of lithium salts, nano alumina and plasticizers (5, 10, 15 and 20 wt%) were studied. The morphology, ionic conductivity, thermal and mechanical properties of the SPE were also examined.
Effects of Nano Alumina and Plasticizers on Morphology, Ionic
Nano alumina (Al 2 O 3) was used as filler, and dioxyphthalate (DOP) and polyethylene glycol (PEG) applied as plasticizers. Various concentrations of lithium salts, nano alumina and plasticizers (5, 10, 15 and 20 wt%) were studied. The morphology, ionic conductivity, thermal and mechanical properties of the SPE were also examined.
Effect of Selected Commercial Plasticizers
The study of morphology was performed by the Scanning Electron Microscopy. Significant problem of plasticized blends used to be also plasticizer migration, therefore the diffusion of...
- How is plasticization achieved in polymer morphology?
- Plasticization is achieved by incorporating a plasticizer into polymer matrix, copolymerization, or blending. Among those, adding plasticizer is the most common and simplest way to modify polymer morphology. Plasticizer can lessen the intermolecular forces along the polymer chains. As a result, free volume was increased and T g was lowered.
- How do plasticizers affect polymer morphology?
- Among those, adding plasticizer is the simplest and most commonly used way to modify polymer morphology. Plasticizers can weaken intermolecular forces along the polymer chains, thus increasing free volume and lowering the glass transition temperature. For this reason, polymers with plasticizers have improved ductility.
- How does plasticizer content affect cell morphology in polymer foaming?
- With the increase of plasticizer content, the cell size of the foam increased from 9.30 μm (10 phr) to 12.75 μm (30 phr), and the expansion ratio increased from 2.33 (10 phr) to 3.36 (30 phr). This work has reference significance for the study of the regulation of cell morphology in the subsequent polymer foaming process.
- Which plasticizer has the best morphology?
- These structural changes led to a more uniform distribution of amorphous chain segments and a decrease in glass transition temperatures. Among the tested plasticizers, GLY exhibited the highest compatibility with CL, resulting in the smoothest surface morphology and delivering the most effective plasticizing effect.
- Does EG plasticizer affect the morphology of PVA?
- It was demonstrated that EG plasticizer exhibited good plasticizing effect, which decreased the melting point and widened the processing window of PVA. Moreover, the plasticizer could affect the melt strength and crystallization of samples, thus, affecting the foaming process and the cell morphology.
- How do plasticizers affect film mechanical properties?
- Plasticizers affect film mechanical properties as well as barrier properties. Fatty acids such as lauric, miristic, palmitic, stearic, and oleic acids have been shown to reduce the WVP of hydroxy propyl methyl cellulose (HPMC) composite films (Jiménez et al., 2010).
