Plasticizer - an overview | ScienceDirect Topics
The molar mass and physical size of the plasticizer and the solubility parameters of PVC plasticizers have the major effect on the dipole attraction and thus the final properties of a flexible compound. Phthalates and adipates are the most commonly used plasticizers.
Comparison of the Density and Solubility Parameter of Pure
The calculated solubility parameters for the pure plasticizers and PVC (previously listed in Table 3) are replotted in Figure 9 for easier comparison. Plasticizers all have much higher δ...
Aldrich Polymer Products Applicaton & Reference Information
ing solubility. A comparison of the solubility parameters of the polymer (d polymer) and solvent (δ solvent), where is a measure of the attractive strength between molecules of the material, al-lows prediction of miscibility. Solubility parameters for solvents and plasticizers are provided in Table II and Table III in alpha-
Interfacial effects of plasticizers on the properties
Table 2 lists the different solubility parameters and the IRs of the plasticizers and CDA calculated according to Eq. ( 4 ). DA have the lowest IR, 2.3 (J cm 3) 0.5, probably, suggesting that it is the most suitable plasticizer for CDA.
Polymer additives and solubility parameters - Kinam Park
The three Hansen solubility parameters quantitatively repre- sent the nonpolar (atomic) bonding, the permanent dipole- permanent dipole (molecular) bonding, and the hydrogen (molecular) bonding. The methods used to achieve this di- vision have been conrmed experimentally.
- What are solubility parameter models?
- Solubility parameter models are widely used to select suitable solvents/nonsolvents for polymers in a variety of processing and engineering applications. In this study, we focus on two well-established models, namely, the Hildebrand and Hansen solubility parameter models.
- Are plasticizers more soluble than PVC?
- The calculated solubility parameters for the pure plasticizers and PVC (previously listed in Table 3) are replotted in Figure 9 for easier comparison. Plasticizers all have much higher δ than PVC, and its value decreases monotonically with the alkyl side chain length. ...
- Why are plasticizers soluble in water?
- It arises from hydrophilic–hydrophobic properties of the molecules. Plasticizers, which are mainly the esters of relatively long alcohols, have a solubility in water of less than several milligrams per cubic decimetre (mg/dm 3) (see Table 3 ).
- What are Hildebrand and Hansen solubility parameter models?
- In this study, we focus on two well-established models, namely, the Hildebrand and Hansen solubility parameter models. Both models are built on the basis of the notion of “like dissolves like” and identify a liquid as a good solvent for a polymer if the solubility parameters of the liquid and the polymer are close to each other.
- Is plasticizer compatible with a polymer?
- The compatibility of a plasticizer with a given polymer is very important. The maximum amount of plasticizer incorporated into a polymer at the processing temperature and retained by it without exudation during the storage, is commonly accepted as the practical limit of compatibility.
- Does plasticizer molecular structure affect its performance?
- Effects of plasticizer molecular structure on its performance, as measured by performance metrics including its thermodynamic compatibility with PVC, effectiveness of reducing the material’s Young’s modulus, and migration rate in the PVC matrix, are evaluated in the framework of seven molecular design parameters.
