Effect of glycerol and sorbitol plasticizers on physical and
Effect of glycerol and sorbitol plasticizers on physical and thermal properties of sugar palm starch based films M.L. Sanyang * 1 , S.M. Sapuan 1, 2, 3 , M. Jawaid 3 , M.R. Ishak 4 , J. Sahari 5
Effect of glycerol plasticizer loading on the physical
Among the plasticizing agents, glycerol has been used as a plasticizer to produce starch-based films because of its compatibility with amylose 50, which stimulates better mechanical properties...
Effect of glycerol and sorbitol concentrations on mechanical
The higher values in the elongation percentages for glycerol-plasticized films can be associated with the fact that it has a small molecular chain which can enter the polymer network more easily than sorbitol, thus the smaller size of glycerol and its greater quantity of related water increases its effectiveness as a plasticizer against
Effect of plasticizers on physical, thermal, and tensile
This study examines the effects of varying the concentrations of sorbitol (S) and glycerol (G) on the physical, morphological, thermal, and mechanical properties of Dioscorea hispida, starch-based films. In this context, the films of Dioscorea hispida starch were developed using solution casting tec
Effects of glycerol and sorbitol on a novel biodegradable
The transmittance value for films with 40%, 50%, and 60% of glycerol was 52.1%, 47.8%, and 44.3%, indicating a significant decrease via the addition of glycerol. In the case of the sorbitol curve, it is noticeable that the transmission was similar for each concentration until 300 nm.
- Can glycerol and sorbitol be used as plasticizers in Dioscorea hispida starch?
- The effects of glycerol, sorbitol, and sorbitol-glycerol mix as plasticizers at various concentrations (0, 30%, 45%, and 60%) dry starch based on the physical, morphological, tensile, and thermal characteristics of Dioscorea hispida starch films were studied. 2. Materials and methods 2.1. Materials
- Do plasticizers glycerol and sorbitol affect cellulose films?
- Research has revealed that cellulose-based films possess high tensile strength but with subtle flexibility, which can be improved with plasticizers. This study aims to understand the effect of plasticizers glycerol and sorbitol on cellulose films.
- Why do glycerol films have less lightness than sorbitol films?
- However, the decrease in the lightness with an increment in plasticizer could be due to over-plasticization, which limits the cellulose chains' capacity to bind the plasticizer. In glycerol films, the a* values range from − 1.0 (7) to 2.3 (8) but are − 2.1 (4) to 2.4 (2) for the sorbitol films.
- Which sorbitol-glycerol (SG) plasticized film has a higher surface variance?
- However, except for sorbitol-glycerol (SG) plasticized film, the higher plasticizer concentrations (45% and 60%) promoted more compact, homogeneous, and dense film surfaces. At 60% plasticization, the G- and S-Plasticizer films exhibited no noticeable surface variance.
- How do glycerol and sorbitol interact in plasticizers?
- In both the plasticizers, the L* value increased up to 15% concentration but decreased at 25%. It appears that glycerol and sorbitol are uniformly distributed within the cellulose network stabilized by a series of hydrogen bonds, yielding soft and transparent films (Basiak et al., 2018, Suppakul et al., 2013).
- Do sorbitol films change color compared to glycerol?
- The lower b* values of sorbitol films hint at a bluish shade than the glycerol films. Overall, there is a subtle color change with the sorbitol presence compared to glycerol. Similar observations are seen in chia seed mucilage films (Dick et al.,2015) and gum films (Jaderi et al., 2022). The L* , a* , and b* changes influence the WI, YI, and TCD.
