Effect of plasticizer type and concentration on physical
Raising the plasticizer content from 15 to 45 % showed less effect on the moisture content and water absorption of S-plasticized films. Films containing glycerol and glycerol-sorbitol plasticizer (G, and GS) demonstrated higher moisture content, solubility and water absorption capacity compared to S-plasticized films.
Polymers | Free Full-Text | Effect of Plasticizer Type and
The use of starch based films as a potential alternative choice to petroleum derived plastics is imperative for environmental waste management. This study presents a new biopolymer (sugar palm starch) for the preparation of biodegradable packaging films using a solution casting technique. The effect of different plasticizer types (glycerol (G), sorbitol (S) and glycerol-sorbitol (GS
Plasticizers – Benefits, Trends, Health, and Environmental
Plasticizers soften the PVC to make it flexible and bendable. This opens up a huge range of possibilities for new applications. One of the main benefits of plasticizers is the durability they confer onto PVC applications, which can ensure high performances for up to 50 years.
What Plasticizers Do & How They Affect Properties | Osborne
Types of Plasticizers. Plasticizers are constantly being evaluated for safety. Because of the widespread usage of plasticizers, they are widely researched and subjected to extensive testing for possible health and environmental effects. In the past sixty years, over 30,000 different plasticizers have been developed worldwide.
A sustainable approach to green algal bioplastics production
The TS of bioplastics with Alg 2 % particularly declined from 0.780 MPa to 0.268 MPa and that of bioplastics with Alg 6 % dropped from 2.130 MPa to 0.284 MPa as plasticizer concentration increased to 15 % because IS destroyed the strong hydrogen bonds generated by Alg-Alg intermolecular interaction and encourages the development of hydrogen bonds
- Does plasticizer type affect the equilibrium moisture content of films?
- Plasticizer type did not significantly affect the equilibrium moisture content of films. Sucrose added films were the most fragile at low RH, while GLY films were the most hygroscopic. However, at RH of 76–90%, sucrose films showed similar resistance compared to other plasticized films.
- Why are plasticizers important in biopolymer-based films & coatings production?
- In biopolymer-based films and coatings production, plasticizers are also essential additives since they can improve flexibility and handling of films, maintain integrity and avoid pores and cracks in the polymeric matrix .
- Can -lactoglobulin films be plasticized with different plasticizers?
- The addition of combined plasticizers (GLY and PEG) can modify the mechanical properties and water vapor permeability . β-Lactoglobulin films were plasticized with different plasticizers (PG, GLY, sorbitol, PEG 200, PEG 400 and sucrose) aiming at improving the mechanical properties.
- What are biodegradable plasticizers?
- Biodegradable plasticizers such as soybean oil (SO), epoxidized soybean oil (ESO), dibutyl phthalate (DBP) and triethyl citrate (TEC) were added to poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films, enhancing their thermal and mechanical properties. TEC or DBP presented better plasticizing effects than SO and ESO for PHBV .
- Do polyols affect mechanical and surface properties of chitosan films?
- 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 , 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.
- Can bio-based plasticizers replace conventional plastic goods?
- The challenge to implement this new class of natural-based plasticizers matches the increasing interest of material researchers and industries in new bio-based materials, made from renewable resources with the potential, not to totally replace but to reduce the use of conventional plastic goods.
