Tailoring compatibility and toughness of microbial poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/bio-based polyester elastomer blends by epoxy-terminated hyperbranched polyester

Han, Xiaolong; Han, Yi; Jin, Yujuan; Tian, Huafeng; Wang, Zhao; Huang, Jiawei; Men, Shuang; Kumar, Rakesh

doi:10.1016/j.ijbiomac.2022.08.130

Cited by 23 publications

(7 citation statements)

References 40 publications

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“…[29,30] In the previous research of our group, it had been proved that EHBP could improve the compatibility of Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/Bio-based engineering polyester elastomers (BEPE) blends. [31] Since the epoxy-terminated groups with high activity, can react with hydroxyl, carboxyl, and amino groups, it is expected that EHBP can be used to compatibilize the PBAT/TPS blend system. Consequently, in this study, EHBP was manufactured and then mixed with TPS and PBAT to prepare PBAT/TPS/EHBP blends.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable Poly (Butylene Adipate‐Co‐Terephthalate) and Thermoplastic Starch Sustainable Blends Modified by Epoxy‐Terminated Hyperbranched Polyester with Excellent Mechanical Properties and High Transparency

et al. 2023

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A kind of fully biodegradable poly (butylene adipate‐co‐terephthalate) (PBAT)/thermoplastic starch (TPS) blend is prepared by melt processing with epoxy‐terminated hyperbranched polymer (EHBP) as a modifier. The effect of EHBP on the performance of PBAT/TPS blends is investigated. The terminal epoxy group of EHBP can react with the hydroxyl and carboxyl groups of PBAT and TPS, which increases the compatibility of PBAT and TPS. Meanwhile, the formation of hydrogen bonds and chain entanglement increases the adhesion between PBAT and TPS, which improves the mechanical properties of the blends. When the content of EHBP is 3 phr, the elongation at break of TPS/PBAT/EHBP blends increases by 28.99% (from 260.32% to 335.79%) and the impact strength increases by 215.78% (from 9.38 to 29.62 kJ m−2). Scanning electron microscopy (SEM) images show that the compatibility of PBAT/TPS/EHBP blends gradually improves with the addition of EHBP. UV results show that the transparency of PBAT/TPS blends is greatly improved by the addition of EHBP, which also indicates the compatibility of PBAT and TPS is improved by the addition of EHBP. It provides an effective way to prepare PBAT blends with excellent properties through, an environmentally friendly and low‐cost processing method.

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Section: Introductionmentioning

confidence: 99%

Biodegradable Poly (Butylene Adipate‐Co‐Terephthalate) and Thermoplastic Starch Sustainable Blends Modified by Epoxy‐Terminated Hyperbranched Polyester with Excellent Mechanical Properties and High Transparency

et al. 2023

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“…Epoxy‐terminated hyperbranched polymer (EHBP) is a distinctive form of hyperbranched polymer characterized by numerous surface functional groups. EHBP can create chemical micro‐crosslinking or hydrogen bonds with the molecular chain groups of other polymers 25–28 …”

Section: Introductionmentioning

confidence: 99%

“…EHBP can create chemical micro-crosslinking or hydrogen bonds with the molecular chain groups of other polymers. [25][26][27][28] In this work, PLA was blended with varying amounts of EHBP through a melt-blending process. The aim was to utilize the epoxy and hydroxyl groups present in EHBP to form micro-crosslinking and form hydrogen bonds with the carboxyl and hydroxyl groups of PLA, thereby enhancing its strength and toughness.…”

mentioning

confidence: 99%

Synergistic toughening and reinforcement of poly(lactic acid) with epoxy‐terminated hyperbranched polymers

Zhou,

Guo,

Jin

et al. 2023

J of Applied Polymer Sci

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Poly(lactic acid) (PLA) is an eco‐friendly and biodegradable material. However, its molecular chain was rigid and showed limited toughness. In this work, PLA was modified with epoxy‐terminated hyperbranched polymer (EHBP) by melt blending to improve the toughness. The results showed that epoxy groups within EHBP reacted with carboxyl and hydroxyl groups of PLA, forming chemical micro‐crosslinking. In addition, intermolecular hydrogen bonds were also formed between EHBP and PLA. The combined action of the above two aspects ultimately improved the toughness and strength of PLA. The mechanical property tests results showed that the mechanical properties of PLA improved best when 2.5 phr of EHBP was added. At this point, compared with neat PLA, the maximum tensile strength, impact strength, elongation at break, and flexural modulus of PLA/EHBP increased by 17.4%, 54.5%, 107.1%, and 25.8%, respectively, compared to those of neat PLA. It achieves the goal of simultaneously enhancing the toughness and strength of PLA and subsequently expands its potential application applications.

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“…The resulting polymer is expected to achieve better performance owing to the introduction of another secondary component into the polymer matrix. [10][11][12][13][14] Zhou et al 15 used SBS to modify PS. Despite a small decrease in rigidity, the impact strength and elongation at break were considerably improved.…”

Section: Introductionmentioning

confidence: 99%

“…Polymer blending is a widely used method for developing new materials with desirable combinations of properties. The resulting polymer is expected to achieve better performance owing to the introduction of another secondary component into the polymer matrix 10–14 . Zhou et al 15 used SBS to modify PS.…”

Section: Introductionmentioning

confidence: 99%

Ultrahigh compressive strength and heat resistance of polystyrene/polyphenylene oxide foams of supercritical carbon dioxide foaming

Li,

Tang,

Wang

et al. 2023

J of Applied Polymer Sci

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Polystyrene (PS) foam materials are lightweight, but suffer from poor compressive strength and heat resistance, among other problems, which limit their application. Herein, a method for preparing PS foam with high compressive strength and high heat resistance using supercritical CO2 is proposed. PS/polyphenylene oxide (PPO) blends were prepared using a corotating intermeshing twin‐screw extruder. The results showed that PPO exhibited excellent molecular‐level compatibility with PS, which substantially improved mechanical properties and heat resistance of PS. Foam samples of PS/PPO blends with the same expansion ratio were prepared via batch foaming experiments, and the compressive strength of different foams was determined at different temperatures. At room temperature, the compressive strength of the PS/PPO‐30% foam increased by 173% compared with pure PS foam. As the testing temperature increased from 30 to 120°C, the compressive strength of pure PS foams decreased rapidly. Nevertheless, PS/PPO foams maintained high compressive strength at high temperatures.

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Tailoring compatibility and toughness of microbial poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/bio-based polyester elastomer blends by epoxy-terminated hyperbranched polyester

Cited by 23 publications

References 40 publications

Biodegradable Poly (Butylene Adipate‐Co‐Terephthalate) and Thermoplastic Starch Sustainable Blends Modified by Epoxy‐Terminated Hyperbranched Polyester with Excellent Mechanical Properties and High Transparency

Biodegradable Poly (Butylene Adipate‐Co‐Terephthalate) and Thermoplastic Starch Sustainable Blends Modified by Epoxy‐Terminated Hyperbranched Polyester with Excellent Mechanical Properties and High Transparency

Synergistic toughening and reinforcement of poly(lactic acid) with epoxy‐terminated hyperbranched polymers

Ultrahigh compressive strength and heat resistance of polystyrene/polyphenylene oxide foams of supercritical carbon dioxide foaming

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