Long- and short-term stability of plasticized poly(lactic
The aim of this study is to investigate the property stability of plasticized PLA for a time period of 2 years starting from the production. We have used three grades of PEG with different molecular weights such as 400, 8000, and 35,000 g/mol, namely PEG-400, PEG-8000, and PEG-35,000 in various concentrations such as 0, 5, 10, 15, and 20 wt%.
Natural-based plasticizers and biopolymer films: A review
The council of the IUPAC (International Union of Pure and Applied Chemistry) defined a plasticizer as “a substance or material incorporated in a material (usually a plastic or elastomer) to increase its flexibility, workability, or distensibility”.
Plasticizer - an overview | ScienceDirect Topics
Plasticizers are bulky organic molecules, generally 300–600 g/mole in molecular weight, and also somewhat polar so as to be compatible with the PVC matrix. Good plasticization involves interspersing plasticizer molecules between PVC chains, breaking the small amount of native PVC crystallinity, and internally lubricating the polymer blend.
Plasticizers in Paint & Coatings: Uses, Types and Selection
Good stability to heat and ultraviolet light Broad range of compatibility, and Excellent resistance to hydrolysis Di-iso-octyl phthalate (DIOP) DIOP is like DOP, an all-purpose plasticizer for polyvinyl chloride, polyvinyl acetate, rubbers, cellulose plastics, and polyurethane. Di-iso-nonyl phthalate (DINP) & Di-iso-decyl phthalate (DIDP)
Selection of Light Stabilizers for Polymers
The most commonly used light stabilizers in plastics are Hindered Amine Light Stabilizers (HALS). The most common UV absorbers are benzotriazoles, benzophenones and organic nickel compounds. UV Degradation Effects in Polymers Effects of UV degradation on polymers may be assessed from the factors discussed below.
- Which plasticizer is most stable after 10 d?
- After 10 d, the migration trend of all samples had been stabled, it showed that the traditional plasticizer like DOP, DOTP and DOA had basically move out from the PVC matrix in non-polar environment due to their own single structure, while the PVC plasticized with A-ODL showed the best stability in all the environment.
- Are oleic acid based plasticizers better than phthalate plasticizer?
- Besides, new plasticizers presented a lower viscosity than DOP, which is very important in PVC plastics production. Furthermore, the thermal stability of PVC blended with MDA or EDA was higher than for DOP, so the studied oleic acid-based plasticizers could serve as a promising alternative to phthalate plasticizers.
- What are alternative plasticizers for polyvinyl chloride (PVC)?
- Environmental and toxicity concerns dictate replacement of di (2-ethylhexyl) phthalate (DEHP) plasticizer used to impart flexibility and thermal stability to polyvinyl chloride (PVC). Potential alternatives to DEHP in PVC include diheptyl succinate (DHS), diethyl adipate (DEA), 1,4-butanediol dibenzoate (1,4-BDB), and dibutyl sebacate (DBS).
- Can a low molecular weight plasticizer be used as a secondary plasticizer?
- Noteworthy research focused on the introduction of a low molecular weight plasticizer as a secondary plasticizer and was carried out by Matos et al. DEHT was partially (5, 10, 15, 20 phr) replaced by di (ethylhexyl)-2,5-furandicarboxylate (DEHF) in PVC plastics (with whole plasticizer content of 55 phr).
- Can biobased plasticizer be used as a heat stabilizer?
- The plasticizing effect of single biobased plasticizer is not good. Biobased plasticizer with synergistic effects is required. There exists the trade-off effect between the molecular weight and the compatibility. Epoxidized isosorbide ester can be used as a heat stabilizer. The authors declare that they have no conflict of interest.
- Are new plasticizers a good choice?
- Among a variety of newly developed plasticizers, we have indicated those presenting excellent migration resistance and advantageous mechanical properties, as well as those derived from natural sources.
