The preparation and performance of poly(butylene adipate) terephthalate/corn stalk composites

Tsou, Chi‐Hui; Chen, Zhijun; Yuan, Shuai; Ma, Zheng‐Lu; Wu, Chin-San; Yang, Tao; Jia, Chun-Fen; Guzman, Manuel Reyes De

doi:10.1016/j.crgsc.2022.100329

Cited by 32 publications

(12 citation statements)

References 47 publications

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“…It can be seen that the water absorption of PBAT/ZnO-graphene nanocomposite materials is stronger than that of PBAT- g -MAH/ZnO-graphene nanocomposite materials, which can explain that the water absorption of the nanocomposite materials modified with MAH is relatively low, and the nanomaterial has better binding property with the matrix material, and the connection is more compact. Moreover, when the content of nanomaterials is 0.4%, the water absorption of PBAT- g -MAH/ZnO-graphene nanocomposites is the lowest, and the interfacial compatibility in the nanocomposite for this content at the reaction site is the best, which improves its hydrophobic property and reduces the degree of dampness of the nanocomposite . However, when the content of nanomaterials is too high, the water absorption performance of the nanocomposite is improved, which reflects that the self-agglomeration of nanomaterials leads to poor binding and more gaps. , …”

Section: Resultsmentioning

confidence: 99%

“…Moreover, when the content of nanomaterials is 0.4%, the water absorption of PBAT-g-MAH/ZnO-graphene nanocomposites is the lowest, and the interfacial compatibility in the nanocomposite for this content at the reaction site is the best, which improves its hydrophobic property and reduces the degree of dampness of the nanocomposite. 43 However, when the content of nanomaterials is too high, the water absorption performance of the nanocomposite is improved, which reflects that the self-agglomeration of nanomaterials leads to poor binding and more gaps. 44,45 The water absorption performance is mainly to analyze the internal structure of the nanocomposite.…”

Section: Acsmentioning

confidence: 99%

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Barrier and Biodegradable Properties of Poly(butylene adipate-co-terephthalate) Reinforced with ZnO-Decorated Graphene Rendering it Antibacterial

Tsou

Liu

et al. 2023

ACS Appl. Polym. Mater.

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In this paper, ZnO-decorated graphene (ZnO-graphene) was added to poly(butylene adipate-co-terephthalate) (PBAT) and maleic anhydride-grafted poly(butylene adipate-co-terephthalate) (PBAT-g-MAH) to prepare antibacterial nanocomposites through melt blending. The effect of different amounts of ZnO-graphene on the properties of the nanocomposite materials was discussed. The results of Fourier transform infrared (FTIR) analysis showed that PBAT-g-MAH could form coordination reaction and hydrogen bond with ZnO-graphene, and this synergistically enhanced the tensile properties of the nanocomposites. With the introduction of functional groups, the mechanical properties of PBAT-g-MAH/ZnO-graphene nanocomposites were significantly improved. Compared with pure PBAT, the nanocomposites showed that the maximum tensile strength, yield strength, and elongation at break increased by 20.58, 17.04, and 7.51%, respectively. This work revealed for the first time through X-ray diffraction tests the probable mechanism of dispersion or compatibility in the nanocomposites. Water absorption properties and water contact angle data proved that the introduction of MAH, along with the optimal amount of nanofillers, could greatly improve the tightness of internal and surface structures of the nanocomposites. Relative to PBAT, the use of PBAT-g-MAH/ZnO-graphene containing 0.6% nanofillers significantly improved the water vapor and oxygen barrier efficiencies by 152.8 and 273.5%, respectively. It was shown from the results of antibacterial evaluation that ZnO-graphene could impart PBAT and PBAT-g-MAH with excellent antibacterial activity. Compared with pure PBAT, the nanocomposite films had better mechanical and barrier properties. Both PBAT and PBAT-g-MAH nanocomposites could decompose naturally in soil, indicating that they were environmentally friendly and would have great application prospect in the fields of packaging and medical industries.

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Section: Resultsmentioning

confidence: 99%

Section: Acsmentioning

confidence: 99%

Barrier and Biodegradable Properties of Poly(butylene adipate-co-terephthalate) Reinforced with ZnO-Decorated Graphene Rendering it Antibacterial

Tsou

Liu

et al. 2023

ACS Appl. Polym. Mater.

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“…Consequently, the incorporation of LCS significantly decreased the wettability and enhanced the hydrophobicity of the bioplastic film (LCS/PLA/PBAT). This was an essential feature for food packaging materials since they could protect food from moisture during transportation and storage . Moreover, good hydrophobicity is conducive to the good self-cleaning ability of packaging materials …”

Section: Resultsmentioning

confidence: 99%

“…As a lignocellulosic biomass resource that is easy to obtain and abundant, corn stover (CS) has received extensive attention in research and applications involving its constituents. − Conventional uses of CS, like on-site burning, green storage feed, and compost fermentation, not only lead to resource waste due to low value but also cause a considerable greenhouse effect and environmental pollution . CS contains 37.2% cellulose, 23.1% lignin, and 17.4% hemicellulose, which can serve as a resource of the lignin–cellulose complex for the filler of bioplastics .…”

Section: Introductionmentioning

confidence: 99%

Biodegradable, Colorless, and Odorless PLA/PBAT Bioplastics Incorporated with Corn Stover

Zhu

Peng

et al. 2023

ACS Sustainable Chem. Eng.

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The effective use of agricultural lignocellulose resources in biodegradable bioplastics has become the focus of people's attention due to the inappropriate disposal of agricultural waste and plastic materials. However, the repulsive smell and uncontrollable color of agricultural lignocellulose-based materials limit their potential to replace common consumer plastics. In this study, when the corn stover (CS) meal enforced the PLA/PBAT matrix using the melt blending method, the lignin and hemicellulose components were shown to substantially impact the color darkening and unsavory odor release for the resultant bioplastic; therefore, an optimized scalable alkaline hydrogen peroxide oxidation that can be performed using traditional pulp and paper production lines was used to modify CS on a large scale (LCS) to enhance the properties of bioplastics fabricated with the PLA/PBAT matrix. As a result, the appearance color and odor character of the bioplastic enforced by LCS have been significantly improved compared to those of natural CS. In addition, the bioplastic (LCS/ PLA/PBAT) exhibited good tensile strength (9.7 MPa), flexural strength (18.1 MPa), elongation at break (61.8%), and surface hydrophobicity with a contact angle value of 91.6°, which could meet the requirement of the Chinese National Standard for Packaging. The reinforcing effect of LCS on these performances lay in its rigid structure with a strong fiber network, high content of cellulose crystalline, and hydrophobic nature of lignin after treatment, as proven by FTIR, XRD, and SEM results. Therefore, our bioplastics filled with treated agricultural waste are attractive appearance-wise, economically competitive, and biodegradable, making them a sustainable alternative to common consumer plastics.

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“…Biodegradable polymer materials have been investigated as a desirable replacement for petroleum-based polymers to fulfill food packaging demands because of their characteristics of almost unlimited feedstock, biodegradability, and reduced costs [ 16 , 17 , 18 ]. PBAT has been chosen over all other biopolymers for its distinctive characteristics of being commonly available and thermally stable [ 19 , 20 , 21 ]. However, PBAT biopolymers are a difficult alternative for food packaging materials due to their poor mechanical properties and limited capacity for forming an efficient oxygen and water barrier.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Antimicrobial Characterization of Poly(butylene adipate-co-terephthalate)/Kaolin Clay Biocomposites

2023

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The biodegradable polymer poly(butylene adipate-co-terephthalate) (PBAT) starts decomposing at room temperature. Kaolin clay (KO) was dispersed and blended into PBAT composites using a solution-casting method. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to evaluate the structure and morphology of the composite materials. PBAT/kaolin clay composites were studied by thermogravimetric analysis (TGA). The PBAT composite loaded with 5.0 wt% kaolin clay shows the best characteristics. The biocomposites of PBAT/kaolin [PBC-5.0 (37.6MPa)] have a good tensile strength when compared to virgin PBAT (18.3MPa). The oxygen transmission rate (OTR), with ranges from 1080.2 to 311.7 (cc/m2/day), leads the KO content. By including 5.0 wt% kaolin 43.5 (g/m2/day), the water vapor transmission rate (WVTR) of the PBAT/kaolin composites was decreased. The pure PBAT must have a WVTR of 152.4 (g/m2/day). Gram-positive (S. aureus) and Gram-negative (E. coli) food-borne bacteria are significantly more resistant to the antimicrobial property of composites. The results show that PBAT/kaolin composites have great potential as food packaging materials due to their ability to decrease the growth of bacteria and improve the shelf life of packaged foods.

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The preparation and performance of poly(butylene adipate) terephthalate/corn stalk composites

Cited by 32 publications

References 47 publications

Barrier and Biodegradable Properties of Poly(butylene adipate-co-terephthalate) Reinforced with ZnO-Decorated Graphene Rendering it Antibacterial

Barrier and Biodegradable Properties of Poly(butylene adipate-co-terephthalate) Reinforced with ZnO-Decorated Graphene Rendering it Antibacterial

Biodegradable, Colorless, and Odorless PLA/PBAT Bioplastics Incorporated with Corn Stover

Preparation and Antimicrobial Characterization of Poly(butylene adipate-co-terephthalate)/Kaolin Clay Biocomposites

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