Preparation and evaluation of acetylated mixture of citrate ester
It is well known that di (2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP) and diisononyl phthalate (DINP) are high-performance plasticizers which are most widely adopted [ 1, 2 ], and account for more than 80% of the entire plasticizer market in China.
Effect of acetylated citrate plasticizer on mechanical properties
In this work, the effects of acetylation modification on the plasticization properties of citrates (triethyl citrate (TEC), acetyl triethyl citrate (ATEC), tributyl citrate (TBC) and acetyl tributyl citrate (ATBC)) were investigated by using a combination of characterization techniques and molecular dynamics (MD) simulation.
AQUACOAT ECD: CRITICAL FORMULATION ATTRIBUTES OF PLASTICIZER - DuPont
formation. Plasticizer acts as a lubricant to reduce cohesive intermolecular forces along the polymer chains, thus reducing stiffness and improving the processability of the polymer. Besides these major functions, plasticizer can also be used as an additive to influence drug release rates. 1. Plasticizer amount. Plasticizer selection is
Plasticizing effects of citrate esters on properties of poly
Triethyl citrate (TEC) and acetyl tributyl citrate (ATBC) were used as plasticizer for poly (lactic acid) (PLA). The treated and plasticized PLA at various concentrations were analyzed by...
Preparation and evaluation of acetylated mixture of citrate ester
Tributyl citrate (TBC) and acetyl tributyl citrate (ATBC), as phthalate alternative plasticizers, show limited application due to low migration resistance, high volatilization rate and...
- What is tributyl citrate (TBC) and diethylene glycol (DEG)?
- PLA was blended with tributyl citrate (TbC) and two oligomers of TbC that were synthesized by transesterification of tributyl citrate (TbC) and diethylene glycol (DEG). Dynamic mechanical analysis (DMA) and differential scanning calorimetry (DSC) were used to investigate the dynamic mechanical and thermal properties of the blends.
- Is tributyl citrate a good plasticizer for polylactide and polyhydroxybutyrate?
- The effectiveness of tributyl citrate (TbC) as plasticizer for polylactide (PLLA) and poly (hydroxybutyrate) (PHB) was analyzed in order to improve the ductility of these polymers and make them good candidates for food packaging applications.
- Is TBC a phthalate plasticizer?
- ... In addition to DOIP, TBC is another non-phthalate plasticizer that was identified in two vinyl glove samples. TBC has been reported to be a safer alternative to phthalates and biocompatible plasticizers [58, 59].
- Does plasticizer tributyl citrate increase moisture permeability?
- Jost et al. (2014) studied the WVP as a function of the plasticizer type and concentration in the alginate cast films. Chaos et al. (2019) found that adding the plasticizer tributyl citrate would increase the moisture permeability of polylactide and polyhydroxy butyrate films.
- Which oligomeric plasticizers were prepared by transesterification of TBC and DEG?
- Conclusions Two oligomeric plasticizers, one trimer (TbC-3) and one heptamer (TbC-7), were prepared by transesterification of TbC and DEG. The tertiary hydroxyl group on TbC seemed to have participated in the reaction, causing uncontrolled branching.
- How much TBC is present in PLA oligomer?
- Both TbC-3 and TbC-7 contain approximately 10% of pure TbC, which means that 1.5 wt% pure TbC is present in a blend of PLA and 15 wt% oligomer. Thus, the depression of Tα caused solely by TbC would, according to previous investigations , , only amount to 1–2 °C which is far less than observed.
