Effect of TBC plasticization on thin polycarbonate sheet

Jiang, Shufang; Guan, Rong; Chen, Hao; Zhao, Jingzuo; Zha, Shangwen; Ke, Zhao

doi:10.1007/s11595-014-0956-x

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…The surface cracking might result from the high CL% accommodated into the matrix and from the plasticizing effect of CE. Jiang et al observed that the infusion of the plasticizer tributyl citrate in poly(bisphenol A carbonate) at ambient pressure and 60 °C for 12 h resulted in the formation of pores and of a network of cracks on the surface and of pores that were present in a greater extent compared to our results [87]. Another possibility is that the samples suffered mechanical stress during the process.…”

Section: Film Morphologycontrasting

confidence: 57%

Supercritical CO2 Impregnation of Clove Extract in Polycarbonate: Effects of Operational Conditions on the Loading and Composition

et al. 2022

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The development of active packaging for food storage containers is possible through impregnation of natural extracts by supercritical CO2-assisted impregnation processes. The challenge of scCO2-impregnation of natural extracts is to control the total loading and to ensure that the composition of the loaded extract may preserve the properties of the crude extract. This study aimed at investigating the scCO2-impregnation of clove extract (CE) in polycarbonate (PC) to develop antibacterial packaging. A design of experiments was applied to evaluate the influences of temperature (35–60 °C) and pressure (10–30 MPa) on the clove loading (CL%) and on the composition of the loaded extract. The CL% ranged from 6.8 to 18.5%, and the highest CL% was reached at 60 °C and 10 MPa. The composition of the impregnated extract was dependent on the impregnation conditions, and it differed from the crude extract, being richer in eugenol (81.31–86.28% compared to 70.06 in the crude extract). Differential scanning calorimetry showed a high plasticizing effect of CE on PC, and high CL% led to the cracking of the PC surface. Due to the high loading of eugenol, which is responsible for the antibacterial properties of the CE, the impregnated PC is promising for producing antibacterial food containers.

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Section: Film Morphologycontrasting

confidence: 57%

Supercritical CO2 Impregnation of Clove Extract in Polycarbonate: Effects of Operational Conditions on the Loading and Composition

et al. 2022

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“…Due to green origin they can be used as plasticizers for polymers used in medicine, food industry, as well as the production of toys, paints, inks and coatings. [26][27][28][29][30] An example of such plasticizer is tributyl citrate (TBC) that finds applications in polymer products, including polyvinyl chloride (PVC), [11,31] cellulose-based plastics [19,[32][33][34] and polylactide. [35][36][37][38] It is also employed as a food additive to improve the flavour and aroma of certain products, and as an ingredient in the production of cosmetics and personal care items.…”

Section: Introductionmentioning

confidence: 99%

Water‐Doped Brønsted Acidic Protic Ionic Liquids for Enhanced Tributyl Citrate Synthesis in a Two‐Phase Esterification System

Więcławik,

Brzęczek‐Szafran,

Barteczko

et al. 2024

Chemistry An Asian Journal

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Tributyl citrate (TBC) plays a crucial role as a plasticizer, enhancing the flexibility of polymers like polyvinyl chloride. Its biodegradability and non‐toxic nature contribute to its eco‐friendly appeal, making it a preferred additive in diverse industries, including food packaging, medical devices, toys, and consumer goods. Herein, a method for the synthesis of TBC using inexpensive Brønsted acidic protic ionic liquids (ILs) in a two‐phase reaction system is presented. The esterification process is carried out with high yield (>99%), selectivity (up to 98%) and short reaction time of 2h. The catalyst in the form of IL shows excellent performance and stability, desirable for industrial applications.

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“…For instance, common PC plasticizers include organic solvents such as acetone [20][21][22], carbon tetrachloride [23,24], tetrahydrofuran [24,25], ethyl acetate [26], chloroform [27], and supercritical CO 2 (SCCO 2 ) [28,29] can enhance the free volume and movement of PC molecular chains, and promote the ordering of molecular chanis into regular helica segments, which serve as crystal nuclie to initiate PC crystalization. Similarlly, flexible polymers such as polycaprolactone [30,31], polyethylene glycol [32], epoxy resins [33], esters such as diallyl phthalate [34], tributyl citrate [35,36], and small molecule liquid crystals such as cholesterol nonanoate (CN) [37,38] enhance the flexibility of PC to alevate the crystal growth. In addition, plasticizers are coupled with nucleating agents to achieve the modification in a greener, efficient, and environmentally friendly way.…”

Section: Introductionmentioning

confidence: 99%

Effective enhancement of poly(bisphenol-A carbonate) crystallinity with polyamide-66 ionized nucleation through ion-dipole interactions coupled with plasticization

Zhang

Song

et al. 2023

Mater. Res. Express

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To improve the crystallinity of poly(bisphenol-A carbonate) (PC). Polyamide-66 (PA-66) is ionized by CaCl2 to prepare the various degrees of ionization (DIs) of PA-66 ionenes (CaCl2–PA-66) as nucleating agents to co-modify PC with cholesterol nonanoate (CN) as plasticizers. Compared with non-ionized PA-66, CaCl2–PA-66 enhance the crystallinity of PC. Concretely, with the DI of CaCl2–PA-66 is raised from 0 to 37.2 mol%, the crystallinity of PC/CN/CaCl2–PA-66 (90/5/5 w/w/w) is first increased from 19.2% to 31.5% and then decreased to 16.9%. This is attributed to the stronger ion-dipole interactions between the ionized nucleating agents and PC, which enhance the compatibility and further dispersibility to create finer crystal with a denser distribution, and the nucleation efficiency is elevated thus facilitating the PC crystallization. However, when the DI of CaCl2–PA-66 is overly high (≥11.4 mol%), it leads to excessive ionic crosslinking, which reduces dispersibility and nucleation efficiency. Therefore, the modification of PC with a suitable DI of CaCl2–PA-66 can advance its crystallinity, which is a novel and effective approach.

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Effect of TBC plasticization on thin polycarbonate sheet

Cited by 4 publications

References 15 publications

Supercritical CO2 Impregnation of Clove Extract in Polycarbonate: Effects of Operational Conditions on the Loading and Composition

Supercritical CO2 Impregnation of Clove Extract in Polycarbonate: Effects of Operational Conditions on the Loading and Composition

Water‐Doped Brønsted Acidic Protic Ionic Liquids for Enhanced Tributyl Citrate Synthesis in a Two‐Phase Esterification System

Effective enhancement of poly(bisphenol-A carbonate) crystallinity with polyamide-66 ionized nucleation through ion-dipole interactions coupled with plasticization

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