Effect of Various Plasticizers in Different Concentrations on
Effect of Various Plasticizers in Different Concentrations on Physical, Thermal, Mechanical, and Structural Properties of ... Malaysia 2 Department of Mechanical and Mechatronic Engineering,
Effect of Various Plasticizers in Different Concentrations on
This work investigated how different plasticizers (Glycerol (G), Fructose (F), Sorbitol (S), and Urea (U)) affect the morphological, mechanical, therm Effect of Various Plasticizers in Different Concentrations on Physical, Thermal, Mechanical, and Structural Properties of Wheat Starch-Based Films
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Plasticizers also reduce the brittleness of the blend by interfering with the hydrogen bonding between the lipid and hydrocolloid molecules and increase film flexibility due to their ability to reduce internal hydrogen bonding between polymer chains while increasing molecular volume [1][2].
Effect of glycerol plasticizer loading on the physical
Effect of glycerol plasticizer loading on the physical, mechanical, thermal, and barrier properties of arrowroot (Maranta arundinacea) starch biopolymers Effect of glycerol plasticizer loading on the physical, mechanical, thermal, and barrier properties of arrowroot (Maranta arundinacea) starch biopolymers
Effect of glycerol plasticizer loading on the physical
Materials. Native arrowroot starch was extracted from arrowroot tubers purchased from Norient Jaya Sdn Bhd Kuala Lumpur, Malaysia. The glycerol plasticizer (with 99.5% purity) was supplied by
- Do plasticizers affect the performance of starch films?
- J. Tarique et al. reported that different plasticizer concentrations had an impact on the physical, structural, mechanical, thermal and barrier characteristics of plasticized films; the inclusion of plasticizers improves the performance of starch films as a whole. Similar findings were recently reported by other researchers .
- What type of plasticizer is used for starch based films?
- The type and concentration of plasticizer employed has significant effect on the physical, thermal, mechanical and barrier properties of films [35,50–52]. The most common plasticizer utilized for starch based films are polyols such as glycerol and sorbitol, amongst many others.
- Do plasticizers affect the crystallinity index?
- X-ray Diffraction (XRD) To study the effect of different plasticizers in various concentrations on the crystallinity index, an XRD test was conducted. Figure 6 shows the crystalline peaks of plasticized wheat starch films. It shows that plasticized films have a lower crystallinity than the control film.
- What is the opacity of plasticizer?
- Plasticizing films with fructose, glycerol and sorbitol with 15% load showed an opacity higher than 25% and 35% of the plasticizer. On the other hand, the urea sample revealed a higher opacity, especially at 35%. Table 2 shows the transparency of wheat starch-based films and various plasticizers. Table 2.
- Why do plasticizers have more tensile properties?
- This was attributed to the fact that a high amount of plasticizer showed smoother surfaces ; a homogenous surface can indicate high tensile properties . A total of 15% of plasticizers showed less smooth surfaces, with large porosity as well as micro-cracks in the structure.
- Do Plasticizers improve tensile strength and homogeneity of wheat starch-based bioplastics?
- Plasticizers were added to improve the flexibility and homogeneity of the wheat starch-based bioplastic. Control film exhibited high tensile strength (38.7 MPa) with low elongation (1.9%). However, films plasticized with 35% sorbitol showed the highest elongation, which was 60.7% at break.
