Lubrication, single screw extrusion rates, and plasticizer
It is well-established that changes in plasticizer structure affect (among other things) the melting temperatures, melt viscosities, and lubrication of flexible PVC compounds. In turn, these properties affect the extrudability of the compounds.
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.
A Strategy for Nonmigrating Highly Plasticized PVC - Nature
Nonmigrating highly plasticized PVC was prepared based on a new compound that acts as a plasticizer that was derived from di (2-ethylhexyl) 4-hydrophthalate and chlorinated paraffin-52. The...
Plasticizers: Types, Uses, Classification, Selection & Regulation
Plasticized PVC (or flexible PVC) finds applications in automotive interior trim, cables, PVC films, flooring, roofing and wall coverings, etc. Classification of Plasticizers Plasticizers are commonly classified based on their chemical composition.
Plasticizer
Plasticizers used in PVC and other plastics are often based on esters of polycarboxylic acids with linear or branched aliphatic alcohols of moderate chain length. These compounds are selected on the basis of many critieria including low toxicity, compatibility with the host material, nonvolatility, and expense.
- Why do flexible PVC materials suffer from migration of additives?
- Flexible PVC materials suffer from migration of their additives. Plasticizers covalently bound to the polymer chain avoid migration. Oligomeric caprolactone additives are prepared by ring-opening polymerization. An industrially viable sustainable way for plasticization is described.
- Which plasticizer molecule provides a beneficial interaction with the PVC chain?
- There exist numerous structures of plasticizer molecules that provide beneficial interactions with the PVC chain, like ester groups, epoxy groups, aromatic rings, hydroxyl groups, etc.
- Is PVC internally plasticized by four different green plasticizer compounds?
- Najafi V., Abdollahi H. Internally plasticized PVC by four different green plasticizer compounds. Eur. Polym. J. 2020;128:109620. doi: 10.1016/j.eurpolymj.2020.109620. [DOI] [Google Scholar] 103.
- 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 landscape of plasticizers for polyvinyl chloride (PVC)?
- The landscape of plasticizers for polyvinyl chloride (PVC) is evolving rapidly. As the awareness of environmental and health implications increases, innovation in this area becomes crucial.
- Are plasticizers compatible with PVC?
- The molecular structure of plasticizers largely determines their effectiveness and compatibility with PVC. Plasticizers typically consist of large molecules that are capable of inserting themselves between PVC chains. This insertion effectively reduces intermolecular forces, allowing the PVC to become more flexible.
