Tannic acid-induced crosslinking of epoxidized soybean oil for toughening poly(lactic acid) via dynamic vulcanization

Liu, Wendi; Qiu, Jianhui; Zhu, Longxiang; Fei, Mingen; Qiu, Renhui; Sakai, Eiichi; Ito, Kazushi; Song, Guolin; Tang, Guoyi

doi:10.1016/j.polymer.2018.06.021

Cited by 49 publications

(30 citation statements)

References 45 publications

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“…In some recent studies, Tang et al reported that TA was introduced as a modifier in boehmite‐filled styrene‐butadiene rubber composites, which have enhanced the mechanical properties and gas barrier property of the rubber. Liu et al investigated TA as a vulcanizing agent to crosslink epoxidized soybean oil (ESO). Due to enhanced interfacial compatibility between the ESO phase and Poly(lactic acid) (PLA) matrix, ESO/PLA blends with high toughness were obtained.…”

Section: Introductionmentioning

confidence: 99%

Influence of the hybrid materials based on carbon nanotubes and tannic acid on the rheological, thermal and mechanical performances of nitrile butadiene rubber composites

Fan

Cho

2019

Polymer Composites

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In this work, hybrid composites are consisting of single wall carbon nanotubes (CNT) and tannic acid (TA) embedded in nitrile butadiene rubber (NBR) matrix using kneading followed by the hot‐pressing method. The CNT and TA were mixed to NBR at different ratio and the obtained composites were subjected to morphological, rheological and thermal analysis as well as mechanical properties. The tensile test results manifested that both CNT and TA can be used as the reinforcing fillers, while the NBR composites filled with CNT exhibited a stronger mechanical behavior, indicating CNT was shown to be the more effective in tensile strength. Furthermore, the organic‐inorganic hybrid fillers presented enhancement of mechanical properties as compared to the neat NBR.

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Section: Introductionmentioning

confidence: 99%

Influence of the hybrid materials based on carbon nanotubes and tannic acid on the rheological, thermal and mechanical performances of nitrile butadiene rubber composites

Fan

Cho

2019

Polymer Composites

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“…The characteristic results of DMA analysis were summarized in Table 2. The E′ of TA-c-ESO/PLA blend at 35°C was 2.67 GPa, much lower than that of pure PLA (3.19 GPa) due to the plasticization effect of TA-c-ESO phase [19]. The addition of CNTs into the blend resulted in increments in the E′s of the resulting nanocomposites.…”

Section: Dynamic Mechanical Propertiesmentioning

confidence: 91%

“…Similar work was done on PLA matrix incorporated with diisocyanate-crosslinked castor oil phase [17,18]. In our previous work, tannic acid (TA) was used as a green crosslinker for ESO during the dynamic vulcanization of PLA with ESO to generate highly tough TA-c-ESO/PLA blends [19]. As proposed in Figure 1, the possible reactions in the TA-c-ESO/PLA blends include 1) the phenolic -OH groups from TA with the epoxy rings from ESO (Reaction I), 2) the formed -OH groups from Reaction I with other ESO epoxides (Reaction II), 3) the terminal -COOH groups from PLA with the -OH groups from TA (Reaction III), and 4) the -COOH/ -OH groups of PLA with the epoxy rings of ESO (Reaction IV) [20].…”

Section: Introductionmentioning

confidence: 92%

“…With a tensile loading, the dispersed TA-c-ESO particles in PLA matrix would be debonded, hence causing shear yielding, forming cavities and plastic deformation [15,50]. Similar to TA-c-ESO/PLA blend, the 0.5CNT/TA-c-ESO/PLA nanocomposite still showed amounts of elongated cells with significant plastic deformation (Figures 9a, 9b) [19]. From the SEM images with low magnifications (Figures 9a, 9c, 9e), it is clearly seen that the fractured surfaces of the nanocomposites changed from smooth morphology to coarse surface with the increase of CNTs usage, and obvious and huge holes were shown on the nanocomposites with high CNTs content.…”

Section: Reinforcing and Toughening Mechanismmentioning

confidence: 99%

“…nanocomposites The preparation of TA-c-ESO/PLA blends was described in previous work [19]. Briefly, TA-dispersed ESO solution was prepared by dissolving TA (2.92 g) and ESO (17.08 g) (a molar ratio of -OH groups to epoxy groups of 0.6) in acetone (20 g).…”

Section: Preparation Of Cnt/ta-c-eso/plamentioning

confidence: 99%

See 2 more Smart Citations

Balancing performance of epoxidized soybean oil (ESO)/poly(lactic acid) composites: Synergistic effects of carbon nanotubes and tannic acid-induced crosslinking of ESO

Liu¹,

Qiu²,

Fei³

et al. 2019

Express Polym. Lett.

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Highly tough and biobased epoxidized soybean oil (ESO)/poly(lactic acid) (PLA) blends were formulated through in-situ formation of tannic acid-crosslinked ESO (TA-c-ESO) oligomer as a dispersed phase with PLA matrix by dynamic vulcanization technique. To repair the sacrificial strength of the blends and endow the composites with electrical conductivity, different concentrations of CNTs, i.e., 0.5 to 10 wt%, were incorporated into the TA-c-ESO/PLA blends to prepare CNT/TAc-ESO/PLA nanocomposites. The added CNTs selectively localized within the PLA matrix, leading to a reduced size of TAc-ESO phase. The synergistic effects of CNTs and TA-c-ESO phase on the tensile properties, thermal stabilities, crystallization characteristics, and electrical properties of the nanocomposites were fully investigated along with the understanding of CNT reinforcing and TA-c-ESO toughening mechanism. The formation of TA-c-ESO phase significantly increased the fracture elongation and tensile toughness of the blends, while the incorporation of CNTs resulted in increased tensile strength, tensile modulus, and storage modulus of the nanocomposites; the combination of this two effects contributed to the obtained ternary composites with balanced mechanical properties and favorable electrical conductivity.

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Effect of oligomers from epoxidized soybean oil and sebacic acid on the toughness of polylactic acid/bamboo fiber composites

Song

Zhang

Yang

et al. 2021

J of Applied Polymer Sci

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The application of bamboo fibers (BFs) to reinforce the impact strength of polylactic acid (PLA) is attractive because of its low cost and high specific strength.However, the main disadvantages of PLA/BF composites are their low compatibility and poor interfacial adhesion caused by different surface energies. In this work, a bio-based compatibilizer is used to modify PLA/BF composites with a BF content up to 30 wt%. First, sebacic acid (SA) and epoxidized soybean oil (ESO) are reacted to obtain ESO-SA oligomers with different branching and crosslinking structures. Next, ESO-SA is incorporated into a PLA/BF composite through dynamic vulcanization, and fully bio-based PLA/BF/ESO-SA ternary composites are prepared. Compared to the PLA/BF composite without ESO-SA addition, the impact strength of PLA/BF/16ESO-SA 12 increases from 5.8 to 14.55 KJ/m 2 . The toughening mechanism results confirm that the chemical structure of ESO-SA is the key indicator of the toughening efficiency.

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Tannic acid-induced crosslinking of epoxidized soybean oil for toughening poly(lactic acid) via dynamic vulcanization

Cited by 49 publications

References 45 publications

Influence of the hybrid materials based on carbon nanotubes and tannic acid on the rheological, thermal and mechanical performances of nitrile butadiene rubber composites

Influence of the hybrid materials based on carbon nanotubes and tannic acid on the rheological, thermal and mechanical performances of nitrile butadiene rubber composites

Balancing performance of epoxidized soybean oil (ESO)/poly(lactic acid) composites: Synergistic effects of carbon nanotubes and tannic acid-induced crosslinking of ESO

Effect of oligomers from epoxidized soybean oil and sebacic acid on the toughness of polylactic acid/bamboo fiber composites

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