Fabrication of innovative thermoplastic starch bio-elastomer to achieve high toughness poly(butylene succinate) composites

Zhang, Shuidong; He, Yan; Yin, Yue; Jiang, Guo

doi:10.1016/j.carbpol.2018.11.036

Cited by 69 publications

(44 citation statements)

References 48 publications

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“…It is also bended to improve the limitation properties of both polymers which produce a superior material for various end applications. However, this interfacial bonding is crucial for excellent thermal and mechanical performances (Zhang et al, 2019a). Since both polymers are thermodynamically immiscible, compatibilizer incorporation and starch modification should be employed to improve the interfacial miscibility for desirable performances.…”

Section: Pbs/starch Blend Biocompositesmentioning

confidence: 99%

Nanocellulose Reinforced Thermoplastic Starch (TPS), Polylactic Acid (PLA), and Polybutylene Succinate (PBS) for Food Packaging Applications

et al. 2020

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Synthetic plastics are severely detrimental to the environment because nonbiodegradable plastics do not degrade for hundreds of years. Nowadays, these plastics are very commonly used for food packaging. To overcome this problem, food packaging materials should be substituted with "green" or environmentally friendly materials, normally in the form of natural fiber reinforced biopolymer composites. Thermoplastic starch (TPS), polylactic acid (PLA) and polybutylene succinate (PBS) were chosen for the substitution, because of their availability, biodegradability, and good food contact properties. Plasticizer (glycerol) was used to modify the starch, such as TPS under a heating condition, which improved its processability. TPS films are sensitive to moisture and their mechanical properties are generally not suitable for food packaging if used alone, while PLA and PBS have a low oxygen barrier but good mechanical properties and processability. In general, TPS, PLA, and PBS need to be modified for food packaging requirements. Natural fibers are often incorporated as reinforcements into TPS, PLA, and PBS to overcome their weaknesses. Natural fibers are normally used in the form of fibers, fillers, celluloses, and nanocelluloses, but the focus of this paper is on nanocellulose. Nanocellulose reinforced polymer composites demonstrate an improvement in mechanical, barrier, and thermal properties. The addition of compatibilizer as a coupling agent promotes a fine dispersion of nanocelluloses in polymer. Additionally, nanocellulose and TPS are also mixed with PLA and PBS because they are costly, despite having commendable properties. Starch and natural fibers are utilized as fillers because they are abundant, cheap and biodegradable.

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Section: Pbs/starch Blend Biocompositesmentioning

confidence: 99%

Nanocellulose Reinforced Thermoplastic Starch (TPS), Polylactic Acid (PLA), and Polybutylene Succinate (PBS) for Food Packaging Applications

et al. 2020

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“…Zhang et al. [ 17 ] fabricated a thermoplastic starch (TPS) bio‐elastomer using reactive extrusion from a mixture of starch, glycerin, and tartaric acid (TPS‐TA). Then, PBS/TPS‐TA bio‐composites were prepared by extrusion.…”

Section: Introductionmentioning

confidence: 99%

Effect of Peroxide on Compatibility, Microstructure, Rheology, Crystallization, and Mechanical Properties of PBS/Waxy Starch Composites

Yan

Dou

2020

Starch Stärke

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Polybutylene succinate (PBS)/waxy starch (WS)/dibenzoyl peroxide (BPO) bio‐composites are prepared via one‐step blending in an internal mixer. The results of scanning electron microscopy, polarized light microscopy, Fourier transform infrared spectroscopy, dynamic mechanical analyses, rheological tests, contact angle measurements, thermogravimetric analyses, and Soxhlet extraction experiments show that a crosslinked graft copolymer (WS‐g‐PBS) is produced with the aid of BPO during melt blending, resulting in improved compatibility between PBS and WS. The results of differential scanning calorimetry and wide‐angle X‐ray diffraction indicate that WS‐g‐PBS affects both the crystallization and melting processes. However, the crystal form of PBS is not modified by adding WS and BPO. The mechanical properties of the composites increase significantly with the addition of BPO.

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“…The measurement was conducted under nitrogen atmosphere. The degree of crystallinity of samples was calculated by 31 :

X_{c} = \frac{∆ H_{m}}{w \times {∆ H}_{m}^{0}} \times 100 %

where ∆ H m denotes the melting enthalpy of PBS;

{∆ H}_{m}^{0}

represents the melting enthalpy of 100% crystalline PBS (∆ H m 100%); w indicates the weight fraction of PBS in the vitrimer. PBS(∆ H m 100%) corresponds to 110.5 J/g 32 …”

Section: Methodsmentioning

confidence: 99%

Preparation of poly(butylene succinate) vitrimer with thermal shape stability via transesterification reaction

Yin

Yang

Lian

2021

J of Applied Polymer Sci

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Poly(butylene succinate) (PBS) refers to a high‐performance biodegradable polymer employed to substitute petroleum polymers that cause environmental issues. However, PBS exhibits the defect of flowing above the melting point and rapid dripping for its poor melt strength. Accordingly, this study proposed a novel method to fabricate PBS vitrimer by exploiting reactive extrusion technology to mix diepoxide with PBS and then by employing zinc acetate as a catalyst to crosslink the PBS. Therefore, after the reaction extrusion blending, the blend still has a lower viscosity and high processing performance; in the subsequent curing process, the polymer undergoes a transesterification reaction and the viscosity increases. Via transesterification to form a cross‐linked network, the storage modulus, and loss modulus of PBS vitrimer at 140°C reach 55,800% and 3500% of pure PBS, respectively. At this time, the crystallinity of PBS vitrimer is still as high as 56.9% (The crystallinity of pure PBS is 47.4%). And the shape stability of PBS at high temperatures was significantly improved. Moreover, PBS vitrimer could still be reshaped after the cross‐linking process. This study proposed a facile method to produce PBS materials exhibiting high thermal shape stability.

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Fabrication of innovative thermoplastic starch bio-elastomer to achieve high toughness poly(butylene succinate) composites

Cited by 69 publications

References 48 publications

Nanocellulose Reinforced Thermoplastic Starch (TPS), Polylactic Acid (PLA), and Polybutylene Succinate (PBS) for Food Packaging Applications

Nanocellulose Reinforced Thermoplastic Starch (TPS), Polylactic Acid (PLA), and Polybutylene Succinate (PBS) for Food Packaging Applications

Effect of Peroxide on Compatibility, Microstructure, Rheology, Crystallization, and Mechanical Properties of PBS/Waxy Starch Composites

Preparation of poly(butylene succinate) vitrimer with thermal shape stability via transesterification reaction

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