Synthesis of novel plasticizer ester end-capped oligomeric
The plasticizing performance of EOLs in PVC was tested and compared with those of commercial environmental plasticizers acetyl tributyl citrate (ATBC) and di-2-ethylhexyl terephthalate (DOTP). According to the results of tensile tests, the elongation at break of PVC plasticized by 50 phr EOLs reached 725.5%, indicating its superior mechanical
Influence of Water on Amorphous Lidocaine | Molecular
Water is generally regarded as a universal plasticizer of amorphous drugs or amorphous drug-containing systems. A decrease in glass-transition temperature (Tg) is considered the general result of this plasticizing effect. A recent study exhibits that water can increase the Tg of amorphous prilocaine (PRL) and thus shows an anti-plasticizing effect. The structurally similar drug lidocaine (LID
Plasticizers Derived from Biomass Resources: A Short Review
Therefore, plasticizers are mainly used to decrease hardness, softening temperature, elastic modulus, and embrittlement temperature of polymers, while improving their flexibility and elongation. Non-phthalate plasticizer alternatives include citric acid ester, phosphates, polyesters, halogenated alkanes, and epoxy compounds [ 4, 5, 6, 7 ].
IOPscience
IOPscience
PLASTICIZING AND ANTI-PLASTICIZING EFFECT OF DIFFERENT
However, the percent elongation of G and GS-plasticized films significantly reduced at higher plasticizer concentration of 45% (w/w) due to antiplasticization effect of plasticizers. GS-films...
- Why do plasticizers have an anti plasticizing effect?
- Plasticizer It is generally believed that the reason of the anti plasticizing effect is that a small amount of plasticizer makes the polymer chain move easily and promotes the orientation and crystallization of the amorphous region. Classification of Plasticizers 1.
- How does plasticizer affect a polymer molecule?
- That is, the plasticizer molecule is inserted between the polymer molecular chain, Plasticizer which weakens the force of the polymer molecule chain, the result increases the mobility of the polymer molecule chain, reduces the crystallinity of the polymer, and thus increases the plasticity of the polymer. Plasticizer's anti-plasticizing effect
- Why are plasticizers important in biopolymer-based films & coatings production?
- In biopolymer-based films and coatings production, plasticizers are also essential additives since they can improve flexibility and handling of films, maintain integrity and avoid pores and cracks in the polymeric matrix .
- Can plasticizer improve the plasticity of polyvinyl chloride (PVC)?
- Plasticizer is an important assistant in the production process of polyvinyl chloride (PVC), which can effectively improve the plasticity of PVC. However, the durability and plasticizing effect of traditional phthalate plasticizers need to be further improved.
- Is antiplasticization manifested at low plasticizer concentrations?
- Antiplasticization is manifested at low plasticizer concentrations as a minimum with respect to the variation of a specific volume, which has been associated with a negative deviation from the additivity rule (Equation (1).
- What are plasticizers used for?
- Plasticizers are an important class of low molecular weight non-volatile compounds that are widely used in polymer industries as additives . The primary role of such substances is to improve the flexibility and processability of polymers by lowering the second order transition temperature, the glass transition temperature (Tg).
