Plasticizer - an overview | ScienceDirect Topics
Introduction of plasticizers into the biopolymer reduces the melt viscosity of the polymer and lowers the temperature, pressure, and shear rate required to melt-form the polymer. Plasticizers also prevent heat build-up and consequent discoloration and molecular weight decrease during processing steps, such as production and packaging.
How do Plasticizers function? - Plastics Engineering general discussion
Plasticizers, due to their compatibility with the polymer, are able to permeate into the free volume around the polymer chains. This interaction results in a few things. First, it reduces the effects of secondary bonding forces which tend to keep the polymer stuck together.
Plasticizer - an overview | ScienceDirect Topics
Plasticizers are used to convert PVC, a rigid plastic, into a soft, flexible, and elastic material. A plasticizer that is compatible with PVC and exhibits low volatility, good permanence, and high efficiency is referred to as a primary plasticizer. A secondary plasticizer has the opposite characteristics of a primary plasticizer.
Plasticizer
Plasticizers are also often added to concrete formulations to make them more workable and fluid for pouring, thus allowing the water contents to be reduced. Similarly, they are often added to clays, stucco, solid rocket fuel, and other pastes prior to molding and forming. For these applications, plasticizers largely overlap with dispersants .
Plasticizer - an overview | ScienceDirect Topics
Plasticizer. Plasticisers are compounds which increase the plasticity of a material and are often involved in the production of plastic products/packaging, epoxy resins (coating cans for food and beverage), water pipe lining, thermal printing paper, implanted medical devices and in the production of CDs and DVDs, mobile phones, plastic food containers, eye glass lenses, drinking bottles, food
- What are plasticizers & how do they work?
- Plasticizers are non-volatile organic substances (mainly liquids) added into a plastic or elastomer. They are also usually cheaper than other additives. They improve the following properties of the polymers: Plasticizers increase the flow and thermoplasticity of a polymer.
- How do plasticizers affect a polymer?
- Well-chosen plasticizers can also improve resistance to UV exposure and chemical attack. This contributes to the long-term stability of the polymer. In specific applications, plasticizers can influence the dielectric properties of polymers.
- How to make a plastic product more flexible by adding plasticizers?
- The process of making the final plastic product more flexible by adding plasticizers is called plasticization. By adding the right type and amount of plasticizer, you can tweak the polymer properties to get exactly what you need.
- 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.
- What is plasticization in chemistry?
- The term plasticization refers to the softening and increase in flexibility of a polymer. This change is due to the addition of specific additives, especially plasticizers. A plasticizer is a non-volatile substance incorporated in a plastic or elastomer. It changes the thermal and mechanical properties of the material.
- What polymers use plasticizers?
- Other polymer systems that use small amounts of plasticizers include polyvinyl butyral, acrylic polymers, poly (vinyldiene chloride), nylon, polyolefins, and certain fluoroplastics. Plasticizers can be used with rubber, although more often these materials fall under the definition of extenders, rather than plasticizers.
