Plasticizer - an overview | ScienceDirect Topics
Plasticizers are low molecular weight substances added to a polymer solution to promote its plasticity and flexibility. Therefore, the plasticizers make the polymer solution more suitable for the application of film coating. There should be chemical similarities between the polymers and its plasticizers.
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.
Plasticizer
The molecules of plasticizer take control over mobility of the chain - a polymer chain does not show an increase of the free volume around polymer ends. If plasticizer/water creates hydrogen bonds with hydrophilic parts of the polymer, the associated free volume can be decreased. [clarification needed] [6]
Plastic Additives: Polymer Stabilizers, Plasticizers and
Plasticizers can increase the flexibility, extensibility, and plasticity of plastics because of their ability to weaken the van der Waals forces between polymer molecules, thereby increasing the mobility of polymer molecular chains and reducing the crystallinity of polymer molecular chains.
The advantages and disadvantages of plasticizers - ZhangJia
The advantages and disadvantages of synthetic plant fat plasticizers. 1. advantages: low price, reduces the amount of production costs; 2. no taste; 3. do not need to change the original formula and technology, improve product plasticizing effect; 4 PVC molecules with better compatibility, effectively inhibit Maoyou; 5 increase the cold
- 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.
- Why do plasticizers reduce TG?
- The reduction of Tg is proportional to the temperature difference between the Tg of the polymer and plasticizer. Plasticization improves the flexibility and processability of polymers. Certain factors can counteract or restrict this enhancement. Certain polymers may have limited compatibility with specific plasticizers, hindering their integration.
- Are plasticizers bad for the environment?
- 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. Nowadays, there is a growing concern among consumers regarding the detrimental effects of synthetic plastics on the environment.
- How do you plasticize a polymer?
- A polymer can be internally plasticized by chemically modifying the polymer or monomer. This increases flexibility. It involves copolymerization of the monomers of the desired polymer (having high Tg) and that of the plasticizer (having low Tg) so that the plasticizer is an integral part of the polymer chain.
- 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.
- Do plasticizers reduce intermolecular forces?
- In general, plasticizers reduce intermolecular forces along the polymer chains, thus increasing free volume and chain movements (Immergut and Mark, 1965). The addition of plasticizer lowers the melt viscosity and elastic modulus of the polymers and decreases the glass transition temperature (Tg) (Han and Gennadios, 2005).
