Superplasticizer
Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more. These additives are employed at the level of a few weight percent. Plasticizers and superplasticizers retard the curing of concrete. [1]
What Plasticizers Do & How They Affect Properties | Osborne
Plasticizers act like a lubricant among polymer chains to reduce rigidity. Without them, synthetic polymer materials would be too brittle and rigid for any practical purpose. For example, plasticizers give rubber its extensibility. Approximately 90% of all plasticizers are used in polyvinyl chloride, or PVC.
High-performance polyvinyl chloride gel artificial muscle
High-Performance PVC gel for ada ptive micro-lenses with variable focal length. ... France. 94–99 (2014). ... In this work, a plasticizer, dibutyl adipate (DBA), is added to four types of TPU to
Plasticizers: Types, Uses, Classification, Selection & Regulation
Plasticizers increase the flow and thermoplasticity of a polymer by decreasing the viscosity of the polymer melt, the glass transition temperature (Tg), the melting temperature (Tm) and the elastic modulus of the finished product without altering the fundamental chemical character of the plasticized material.
Super Plasticizers: Classification and Uses | Concrete Technology
Super plasticizers are also used for the production of high strength and high performance concrete. With the use of super plasticizers, flowing concrete could be produced with the water/cement ratio as low as 0.25 or even less. The strength of such concrete was found 120 MPa (1200 kg/cm 2) or more.
- How do plasticizers work?
- Plasticizers work by reducing intermolecular forces within the polymer, thereby increasing the mobility of molecular chains. This allows the plastic to become softer and more flexible without significantly altering its chemical structure.
- What is a plasticizer?
- A plasticizer is defined as an additive that is incorporated in a plastic to impart softness and flexibility in order to facilitate the manufacturing process. You might find these chapters and articles relevant to this topic. A plasticizer is a material that when added to another substance, makes that material softer or more flexible.
- Why do we add plasticizer?
- The addition of plasticizer leads to a decrease in intermolecular forces along polymer chains, which improves the flexibility and chain mobility. These are added to enhance film flexibility, decrease brittleness and avoid shrinking during handling and storage , , .
- How does plasticizer affect the mobility of a polymer chain?
- The mobility of a polymer chain is more complex in the presence of plasticizer than what the Flory–Fox equation predicts for a simple polymer chain. 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.
- 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 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.
