Effect of plasticizer, pH and hydration on the
The effects of plasticizer (stearic acid or propylene glycol), pH (4.4 or 9.4) and degree of hydration (58 or 84% RH) on the water vapor permeability, tensile strength and percent...
EFFECT OF PLASTICIZER, pH AND HYDRATION ON THE - Redalyc
the effects of film forming solution pH (4.4 and 9.4), film hydration to 58 % and 84 % RH, and propylene glycol or stearic acid as type of plasticizer on the mechanical and barrier properties of zein and ethylcellulose films. MATERIALS AND METHODS Film preparation Ethylcellulose (EC) or zein (Sigma Chemical Co.,
EFFECT OF PLASTICIZER, pH AND HYDRATION ON THE MECHANICAL AND
Abstract. Resumen. Resumo. Edible barrier films complement modified atmosphere in preserving food quality and extending shelf life. The effects of plasticizer (stearic acid or propylene glycol), pH (4.4 or 9.4) and degree of hydration (58 or 84% RH) on the water vapor permeability, tensile strength and percent elongation at breakpoint were determined for zein and ethylcellulose films.
Investigation of the hydration process in 3CaO·Al2O3–CaSO4
The hydration reaction of C 3 A–gypsum mixtures is markedly influenced by the presence of organic compounds. Plasticizers are an important class of organics added to cement mixes to increase the workability at low water to cement ( w / c) ratios to obtain higher compressive strengths and improved durability.
Effect of plasticizer, pH of the film forming solution and
The effects of plasticizer (stearic acid or propylene glycol), pH (4.4 or 9.4) and degree of hydration (58 or 84% RH) on the water vapor permeability, tensile strength and percent...
- Does water increase elongation of plastic?
- The result shows that water can increase the elongation of the plastic, but on the other hand it can decrease the tensile strength and barrier properties by increasing the water vapour transsmision rate.
- How glycerol concentration affect bioplastic characteristics?
- The optimum concentration of glycerol addition affected the bioplastic characteristics with the best results were 40% concentration generate density of 0.836 g/mL, tensile strength of 0.818 MPa, water absorption value of 22.23%, and degradation plastic mass about 39.7%.
- Does glycerol and sorbitol affect morphology of bioplastic?
- The morphology of bioplastic showed the high homogeneity on concentrations of 40% glycerol and 30% sorbitol. Andahera, C., I. Sholikhah, D. A. Islamiati, and M. D. Pus- fitasari (2019). Effect of Addition of Types and Concen- trations of Plasticizers on the Quality of Cellulose-Based Bioplastics from Oil Palm Empty Fruit Bunches.
- Are synthetic plastics bad for the environment?
- The synthetic plastics that made from petroleum material have been widely used in all industrial sectors. They cause some serious problems for the environment. There are semi-synthetic plastics or biodegradable plastics which are made from natural polymers such as cellulose to mitigate this problem.
- How biodegradable plastics can fulfill the needs of society?
- Biodegradable plastics can fulfill the needs of society because they can be decomposed easily into the environment. This research used laboratory experimental methods through several processes: kapok fiber isolation, cellulose acetate production and purification, and manufacture of bioplastics.
- Why should plastic packaging be avoided?
- Recently the use of plastic packaging is become avoided because their waste will create environmental problem.
