Materials Today Communications
·
2025
·
IF 4.5
Jian Gao,Jie Zhang,Honghui Guo,Ziyu Liang,Fuyong Liu,Kaiyuan Xiao,Wei Li,Hong Yan,Ruijie Guo
SiO 2 was hydrophobically modified using vinyltrimethoxysilane (VTMO), then modified SiO 2 NPs were grafted onto poly(butylene adipate- co -terephthalate) (PBAT) matrix. The modified PBAT composite films were prepared by the solvent evaporation method. FTIR、EDX and XPS analyses were performed to study the chemical structure of the modified films. The hydrophobic surface morphology was studied by SEM. The UV-blocking properties of the films were studied by UV spectroscopy. The effects of the hydrophobically modified SiO 2 on the hydrophobicity, mechanical properties, barrier properties, and antibacterial adhesion properties of PBAT were investigated. Results showed that optimum performance was achieved when the SiO 2 content was 2%. The contact angle increased from 66° to 146°. The mechanical properties decreased slightly. The barrier properties were also improved. The inhibition rates for E. coli and S. aureus reached 99%. All the results proved that the modified PBAT-based films could be used as food packaging films.
研究领域:
材料科学
·
食品科学
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产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2020
·
IF 7.182
Chenhao Zhang,Fangping Chen,Wei Meng,Chengqiang Li,Ruihua Cui,Zhean Xia,Changsheng Liu
We report a modified starch-poly(butylene adipate co-terephthalate) (PBAT) film (MSPF) prepared by extrusion blowing. Polyurethane prepolymer (PUP), was modified to the starch to enhance the compatibility. Different contents of amylose was blended with PBAT for improving mechanical strength and oxygen-barrier properties of MSPF. The microstructures, crystallinity, mechanical properties, oxygen-barrier capacity of MSPF were thoroughly evaluated. The result showed that MSPF with high starch content and excellent performances was successfully prepared with the synergy of PUP modification, amylose introduction and extrusion blowing. The crystallinity, hydrophobicity, oxygen-barrier properties and mechanical properties of MSPF increased with the increasing amylose content. The maximum tensile strength and elongation at break of MSPF reached 10.6 MPa and 805.6 %, respectively, even at the high starch content of 50 %. The result demonstrated that MSPF having excellent mechanical properties and oxygen-barrier properties could be use in the biodegradable field such as packaging materials, agricultural films and garbage bags.
研究领域:
材料科学
·
生物降解材料
·
高分子化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Pigment & Resin Technology
·
2024
·
IF 1.3
Yi xuan Zhang,Shi Xu,Hongyu Gao,Yubing Dong
PurposeThe purpose of this study is to improve the mechanical properties of PBAT. Polybutylene adipate terephthalate (PBAT) has excellent biodegradability, which has been widely used in various fields, such as biomedical supplies, plastic packaging materials, industrial composting and daily sanitary consumables. However, the application of PBAT is limited by its high production costs and poor mechanical property. In this study, the glass fiber (GF)/PBAT composites were prepared, and the effect of GF and the modifiers on the structure, mechanical properties and shape memory properties of the composites were investigated.Design/methodology/approachIn this work, GF, 3-aminopropyltriethoxysilane (KH550) and chain extender ADR 4370 were selected as reinforcement, GF and chain extender, respectively. The GF/PBAT, KH550-modified GF/PBAT and ADR-modified GF/PBAT composites were prepared by melt blending, extrusion granulation and hot pressing.FindingsThe study showed that the fracture strength and elongation at break of PBAT decreased with the increasing of GF, and the decline is controlled after addition of KH550 and ADR 3470. When the GF content was low (such as 5 wt% and 10 wt%), KH550 significantly improved the mechanical properties of the composites. When the GF content was high (such as 20 wt% and 25 wt%), the mechanical properties of the composites were obviously improved by addition of ADR 3470. In addition, the shape memory fixity ratios (Rf) and shape memory recovery ratios (Rr) of the composites increased and decreased with increase of GF content, the prestrain and tensile temperature, respectively. Furthermore, the Rf of the KH550 modified GF/PBAT composites were the lowest, the Rr were the highest than that of the ADR modified GF/PBAT composites and the untreated GF/PBAT composites.Research limitations/implicationsGF/PBAT composites exhibited good mechanical properties and low production costs. The research can help promote the widespread use of PBAT and alleviate the situation of serious plastic pollution.Originality/valueA novel biodegradable GF/PBAT composite was developed by chain extender ADR 4370, incorporating environmentally friendly GF with excellent mechanical properties into PBAT.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Wenlong Pang,Bin Li,Yufeng Wu,Qing Zeng,Jun Yang,Yu Zhang,Shaonan Tian
Biodegradable plastics such as Poly (butylene adipate-co-terephthalate) (PBAT) have been extensively utilized in numerous fields. However, post-consumption, PBAT tends to pollute the environment and waste resources. Herein, a novel approach employing a 1,4-butanediol-alkali combined method for the hydrolysis of PBAT is introduced. At 130 °C, with a reaction time of 60 min, the hydrolysis rate of PBAT exceeds 99 %. Subsequently, a two-step synthesis rapidly produces a foam nickel-supported NiOOH catalyst for the electrocatalytic reformation of the PBAT hydrolysate into higher-value chemicals (succinate salts) at an impressive current density of 100 mA cm −2 at 1.43 V (vs. RHE) and a Faradaic efficiency of 97.6 %. Experimental results and density functional theory calculations have elucidated the active state changes of the foam nickel-supported NiOOH catalyst and the intermediates in the oxidation of 1,4-butanediol to succinate, alongside the reaction mechanism. This study offers a viable approach for the degradation of PBAT plastic through a 1,4-butanediol-alkali method and the rapid preparation of a foam nickel-supported NiOOH electrocatalyst, achieving the upgraded recycling of post-consumer biodegradable PBAT plastic.
研究领域:
环境科学
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材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Processes
·
2020
·Vol. 8
·期 8
·897
·
IF 2.753
Yangfan Xu,Chongxing Huang,Xiujie Dang,Muhammad Rafiullah Khan,Haohe Huang,Yuan Zhao,Shuangfei Wang
The mesoporous silica wall materials can achieve controlled load and sustained-release of active agents. An antimicrobial nanoscale silica microcapsule containing cinnamaldehyde (CA) was prepared by the sol-gel method and applied in poly (butyleneadipate-co-terephthalate) (PBAT) film. The surface morphology, physical and chemical properties, and antibacterial properties of microcapsules and films were studied. The effects of different temperatures and humidities on the release behavior of microcapsules were also evaluated. Results showed that CA was successfully encapsulated in silica microcapsule which had a diameter of 450–700 nm. The antibacterial CA agent had a long-lasting release time under lower temperature and relative humidity (RH) environment. At low temperature (4 °C), the microcapsules released CA 32.35% in the first 18 h, and then slowly released to 56.08% in 216 h; however, the microcapsules released more than 70% in 18 h at 40 °C. At low humidity (50%RH), the release rates of microcapsules at the 18th h and 9th d were 43.04% and 78.01%, respectively, while it reached to equilibrium state at 72 h under 90% RH. The sustained release process of CA in SiO2-CA microcapsules follows a first-order kinetic model. Physicochemical properties of PBAT films loaded with different amounts of microcapsules were also characterized. Results showed that the tensile strength and water vapor transmission rate (WVTR) of the composite film containing 2.5% microcapsules were increased by 26.98% and 14.61%, respectively, compared to the raw film, while the light transmittance was slightly reduced. The crystallinity of the film was improved and can be kept stable up to 384.1 °C. Furthermore, microcapsules and composite film both exhibited distinctive antibacterial effect onEscherichia coliandListeria monocytogenes. Therefore, SiO2-CA microcapsules and composite films could be a promising material for the active packaging.Keywords:cinnamaldehyde;PBAT;antibacterial materials;composite film
研究领域:
材料科学
·
生物技术
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Ruizhe Li,Xuhai Zhu,Fuyan Peng,Fang Lu
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.
研究领域:
材料科学
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环境科学
·
农业科学
✓ 已验证
DOI
高影响因子
Nano-Micro Letters
·
2023
·Vol. 16
·期 1
·1-14
·
IF 26.6
Yang Jianming,Wang Hu,Zhang Yali,Zhang Hexin,Gu Junwei
A layered segregated shielding network was organized in porous PBAT/Fe 3 O 4 @MWCNTs/Ag composite by scCO 2 foaming and scraping techniques.
The composite foam achieved an electromagnetic interference (EMI) shielding effectiveness (SE) of up to 68.0 dB and a reflectivity of as low as 23% due to the “absorption-reflection-re-absorption” shielding mechanism.
The solid and foamed PBAT/Fe 3 O 4 @MWCNTs/Ag composites displayed superior retention (> 92%) of EMI SE even after peeling experiment of 500 times under 100 g weight pressure.
研究领域:
材料科学
·
电磁学
·
环境科学
✓ 已验证
DOI
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 12
·e70005
·
IF 3.1
Ming Jiang,Haili Zhao,Tao Chen,Guangming Li
Porous biodegradable polybutylene adipate terephthalate (PBAT)-based material, used in wearable electronics for sensing human motion, is beneficial for environmental protection. Although PBAT demonstrates good elongation at break and impact performance, specific studies on its processing, modification, and porous structure are needed. Therefore, PBAT/single-walled carbon nanotube (SWCNT) porous material was prepared via a salt-templating method. It was found that part of the SWCNT was embedded in the walls of the pores in the PBAT substrate, while another part was exposed on the pore surface. PBAT served as the structural framework, and SWCNT functioned mainly as the active component, especially the SWCNT exposed on the surface. This unique microstructure imparted the porous material with desirable piezoresistive properties and effective electromagnetic interference (EMI) shielding capabilities. When the material was compressed, the exposed SWCNT was forced into closer contact, increasing the number of electrical transport pathways and further enhancing conductivity. The resulting porous sensor exhibited a notable response to strain up to 100% and demonstrated high sensitivity (1.25) while maintaining robust cyclic stability after 1000 cycles. Human pulse and finger flexion were successfully recorded using the fabricated porous sensor. Moreover, the porous material displayed EMI shielding capabilities, primarily through the absorption of electromagnetic (EM) waves, a phenomenon associated with the rough surface of the pores created by the exposed SWCNT. The overall electromagnetic shielding effectiveness was around 60 dB. Given these advantages, the green biodegradable material PBAT shows significant potential for application in piezoresistive sensors and electromagnetic interference shielding with appropriate modification and preparation.
研究领域:
材料科学
·
环境科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS & DESIGN
·
2021
·
IF 7.991
Yufei Liu,Long Yang,Guijing Chen,Zhentao Liu,Tao Lu,Yong Yang,Jia Yu,Dongdong Kang,Wei Yan,Min He,Shuhao Qin,Jie Yu,Chuan Ye,Heng Luo
Although microfiber (MF) loaded polypeptides have been widely studied in the field of medicine, load control and slow release remain significant challenges. Herein, polybutylene adipate terephthalate (PBAT) hollow porous MFs (HPMFs) were prepared by improving and regulating the groups and structures of the MFs to address these challenges. The capacity of the HPMFs for the loading of polypeptide can be improved. Measurements involving the use of X-ray photoelectron, energy-dispersive, and ultraviolet (UV) spectroscopies in conjunction with scanning electron microscopy measurements showed that the amount of polypeptide (arginylglycylaspartic acid, RGD) loaded on the HPMFs was significantly higher than that loaded on the MFs. Animal cell experiments revealed that PBAT grafted MAH has good bioactivity. By loading RGD onto HPMFs and MFs, RGD@HPMFs and RGD@MFs were obtained. A study on HeLa and A549 cancer cells showed that the inhibition rates of RGD@HPMFs were higher than that of RGD@MFs by 14.1% and 6.9%, respectively. The results obtained herein show that HPMF scaffold preparation by improving the material groups and regulating the structure of MFs can address the challenges associated with control of the load and sustained release of polypeptides and other drugs.
研究领域:
生物医学工程
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材料科学
·
药物递送系统
✓ 已验证
DOI
高影响因子
POLYMER SCIENCE SERIES A
·
2019
·Vol. 61
·期 3
·317-324
·
IF 0.984
Ting Gu,Zhu Dayong,Lu Yue,Lu Shengjun
Abstract Polylactic acid (PLA) and poly(butylene adipate- co -terephthalate) (PBAT) were blended in a twin-screw extruder with a compatibilizer of PLA grafted using glycidyl methacrylate (PLA- g -GMA), providing PLA- g -GMA/PLA/PBAT composites. The chemical structures of the composites were determined using Fourier-transform infrared spectroscopy (FTIR). The effects of the PLA- g -GMA amount on the thermal properties, rheological performance, and mechanical behavior of the composites were studied through differential scanning calorimetry (DSC) using an advanced rheometer and material testing machine. The results revealed that the reaction between the PLA/PBAT and epoxy groups within the PLA- g -GMA promotes an entanglement between molecular chains, which increases the glass transition temperature T g , cold crystallization temperature T c , and melting temperature T m of the samples. Moreover, the PLA- g -GMA/PLA/PBAT composites show higher tensile and notch impact strengths than PLA/PBAT.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 21
·4517
·
IF 4.967
Haitao Lang,Xianlei Chen,Jiarong Tian,Jing Chen,Mengna Zhou,Fangfang Lu,Shaoping Qian
Poly (butylene adipate-co-terephthalate) (PBAT) is a fully biodegradable polymer with toughness and ductility. It is usually compounded with thermoplastic starch (TPS) to balance the cost for manufacturing biodegradable films such as disposable plastic bags. However, blending with TPS reduces valuable tensile strength, which limits the bearing capacity of PBAT film. In this study, microcrystalline cellulose (MCC) was employed as a reinforcement to strengthen the PBAT/TPS biodegradable film. The effect of MCC content on the mechanical, thermal, and morphological properties of the composite film were investigated. The optimal tensile strength and elongation at break reached 5.08 MPa and 230% when 4% MCC was added. The thermal stability and thermal resistance were improved with the addition of MCC; for example, Tmaxincreased by 1 °C and Tonsetincreased by 2–8 °C. Moreover, good compatibility among PBAT, TPS, and MCC can be achieved when the MCC content was below 6%. Consequently, the optimal MCC content was found to be 4%. These results could provide experimental data and method support for preparing high-performance PBAT hybrid films.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
FIBERS AND POLYMERS
·
2025
·
IF 2.3
Guo Xiaoyu,Feng Changjian,Huang Lilan,Wang Hongqiang,Liu Fang,Li Jiao
Polylactic acid (PLA) membranes offer advantages such as biodegradability, non-toxicity, and biocompatibility for oil–water separation. However, it remains challenging to fabricate PLA membranes with sufficient mechanical strength and hydrophobicity for practical applications. In this study, a superhydrophobic fibrous membrane based on PLA and Polybutylene terephthalate adipate (PBAT) is prepared via electrospinning, followed by a high-humidity treatment. The effects of PBAT content and high humidity treatment on the morphology, hydrophobicity, and mechanical properties of PBAT/PLA composite fiber membranes are investigated. The results show that the introduction of PBAT effectively enhances the fiber diameter, crystallization, hydrophobicity, and mechanical properties of PBAT/PLA fibers. Moreover, the high humidity treatment further improves the mechanical and hydrophobic properties of the membranes. When 0.2 g of PBAT is added and the high humidity treatment lasts for 24 h, the resulting PBAT/PLA fibrous membrane exhibits an outstanding water contact angle (WCA) of 158.23°, tensile strength of 3.802 MPa, excellent oil–water separation flux (6500 L/(m 2 ·h)), and efficiency of 99.80%, demonstrating great potential for oil–water separation applications.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）