Plasticizers - ScienceDirect
Primary plasticizers are the products which are either used as the sole plasticizer in the system, or the major plasticizer that is used in plasticizer blends. Secondary plasticizers are used in smaller quantities in a blend with a primary plasticizer, and are generally added to improve on some specific property such as improved low-temperature
Plasticizer - an overview | ScienceDirect Topics
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. The amount of plasticizer needed to obtain a certain hardness or elongation is a measure of its efficiency.
Plasticizers: Types, Uses, Classification, Selection & Regulation
The most widely used external plasticizers include esters formed from the reaction of acids or acid anhydrides with alcohols. There are two main groups of external plasticizers: A primary plasticizer enhances elongation, softness and flexibility of polymer. They are highly compatible with polymers and can be added in large quantities.
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.
Title: A Review on Plasticizers and Eco-Friendly
Plasticizers are chemical additives added into polymers to influence desirable mechanical properties such as processability and ductility. These properties are a result of the association of...
- What are the different types of plasticizers?
- There are two main groups of plasticizers: primary—the main plasticizer in a PVC blend, added in large quantities and highly compatible with PVC; and secondary—having limited compatibility with PVC, easily migrating, especially when used in excess and usually added to the blend to improve its properties or to reduce its costs . Figure 1.
- Why are new plasticizers a problem?
- The main problem in developing new plasticizers is to find a compound providing good mechanical properties to PVC, but with limited migration, extraction resistance and low volatility. There are a lot of studies describing novel plasticizers that exhibit excellent migration resistance at the expense of the deterioration of mechanical properties.
- What is the difference between primary and secondary plasticizers?
- Primary plasticizers are used as the sole plasticizer or as the major component of plasticizer, while secondary plasticizers are typically blended with primary ones to improve certain performance properties and/or to lower cost. 2.2. Evolution of plasticizers
- What is the demand for plasticizers?
- Among the different types of plastics, demand for plasticizers is highest from polyvinyl chloride (PVC). In 2016, 2.14 million tonnes of plasticizers were used solely in films, followed closely by cables and profiles.
- Does a mixture of Plasticizers improve the mechanical properties of PVC?
- Moreover, the mechanical properties were improved when a mixture of plasticizers was applied in PVC blends, whereas a blend with pure SOHE showed worse mechanical properties (lower elongation at break and higher tensile strength) than DOP.
- What is the global demand for plasticizers in 2024?
- In the fourth edition of its Plasticizers market study, Germany's Ceresana forecasts that global demand for all plasticizers will increase to about 9.75 million tonnes in 2024, with typical volume growth rates for the different types of about 3–3.5%.
