Polymers
·
2026
·Vol. 18
·期 7
·875
·
IF 5.8
Ce Zhao,Xinxin Yan,Zhou Zhou,Lukuan Guo,Shilong Yang,Zhen Chen,Fengwei Jia,Junlong Song,Jiaqi Guo
Improving the interfacial compatibility between cellulose and poly(butylene adipate-co-terephthalate) (PBAT) is critical for enhancing the performance of PBAT-based composites. Here, microcrystalline cellulose (MCC) was homogeneously silanized at the molecular chain level usingt-hexyldimethylchlorosilane (TDMS-Cl) as the modifier, yieldingt-hexyldimethylsilylated cellulose (TDMS-Cell). TDMS-Cell/PBAT composite films were then prepared by solution blending and casting in tetrahydrofuran (THF). Structural characterizations confirmed the successful grafting of TDMS-Cl onto cellulose chains, resulting in TDMS-Cell with a degree of substitution of approximately 2. Microstructural observations combined with thermal analysis revealed that TDMS-Cell exerted a dual effect on the crystallization behavior of PBAT: it acted as a heterogeneous nucleating agent that increased the crystallization temperature, while the pronounced steric hindrance simultaneously suppressed crystal growth. Mechanical testing showed that simultaneous strengthening and toughening were achieved at an optimal TDMS-Cell loading of 3–5 wt%. Specifically, the tensile strength increased from ~16 MPa for neat PBAT to 21 MPa (31.25% improvement), and the elongation at break increased from ~700% to 964% (37.7% improvement). In addition, the incorporation of an appropriate amount of TDMS-Cell effectively enhanced the surface hydrophobicity of the composite films. At higher filler loading, however, solvent evaporation-induced phase separation led to self-aggregation of TDMS-Cell, which in turn deteriorated both the mechanical properties and surface hydrophobicity of the composites. Overall, this work systematically elucidates the structure–property relationships of silanized cellulose/PBAT composites in a homogeneous solution system, providing a rational basis for interfacial design and property optimization of PBAT/biomass-based composite materials. The prepared TDMS-Cell/PBAT composite films with balanced mechanical strength, tunable crystallization behavior, and improved surface hydrophobicity exhibit great potential for practical applications in high-performance flexible packaging materials, functional film substrates, lightweight composite structural components, and tunable hydrophobicity coating substrates.
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DOI
PubMed
高影响因子
Innovative Food Science & Emerging Technologies
·
2026
·
IF 6.9
Zhaocan Li,ShuYi Zhou,Yujuan Jin,Yanbo Wang,Huafeng Tian,Guoping Li
To enable real-time indication of food freshness and safety, a pH-responsive, color-changing food packaging film was developed. Blueberry anthocyanin (BA) was encapsulated with polyethylene oxide (PEO) using microencapsulation technology to produce Blueberry anthocyanin - polyethylene oxide microcapsules (BA-PEO). These microcapsules were then incorporated into a poly(butylene adipate- co -terephthalate) (PBAT)/thermoplastic starch (TPS) matrix to fabricate a biodegradable film capable of in situ monitoring of food freshness. Appropriate addition of BA-PEO enhanced the thermal stability and tensile strength of the PBAT/TPS films. At a BA-PEO content of 2 phr, the oxygen permeability coefficient reached a minimum value of 1.47 × 10 −15 cm 3 ·cm·cm −2 ·s −1 ·Pa −1 , representing a 20.3% reduction. However, the incorporation of BA-PEO increased both the water vapor transmission rate (WVTR) and water vapor permeability (WVP). At 4 phr BA-PEO, the WVTR and WVP were 115.20 g·(m 2 ·24 h) −1 and 2.23 × 10 −14 g·(cm 2 ·s·Pa) −1 , respectively. A ΔE*ab value greater than 5 indicates that the color change is directly observable. Therefore, the potential of PBAT/TPS films filled with BA-PEO microcapsules is demonstrated in the field of intelligent food packaging materials.
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POLYMER COMPOSITES
·
2025
·Vol. 47
·期 1
·803-820
·
IF 4.7
Chunxiu Liu,Chunhui Zhang,Jianhong Liu,Chengxue Li,Huikai Nan,Ziyue Zhang,Yubing Dong
To improve the mechanical property of poly (butylene adipate-co-terephthalate) (PBAT), the bamboo powder/polylactic acid (PLA)/PBAT (BPP) composites were prepared by melt-blending, and the NaOH solutions treated bamboo fiber (BF)/BPP composites were prepared by a hot-pressing molding approach. The effects of BF on the structure and properties of the BF/BPP composites were studied. The results showed that the BF mat significantly improved the mechanical properties of the composites, especially those reinforced with a double-outer-layer BF mat. The tensile strength and Young's modulus of the 4 wt% NaOH solution pretreated-BF reinforced BPP composites were 19.0 and 257.9 MPa, respectively. In addition, the BF/BPP composites had good shape memory properties, with shape memory fixity ratio ( R f ) and shape memory recovery ratio ( R r ) reaching 97.8% and 82.2% under 120°C, respectively. The R r of the composites gradually increased with the concentration of NaOH solutions. This study may provide a feasible reference for the research and application of the PBAT-based biodegradable composites modified with natural reinforcing materials.
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POLYMER DEGRADATION AND STABILITY
·
2021
·
IF 5.03
Han Hu,Ying Tian,Jinggang Wang,Ruoyu Zhang,Jin Zhu
Aliphatic–aromatic copolyesters are indispensable in degradable plastics, but their properties are limited by low strength and modulus, and slow degradation rates in natural environment. Herein, we report a novel molecular design method to prepare poly(butylene adipate–co–diglycolate–co–terephthalate)(PBADT) copolyesters. In detail, the aromatic unit is fixed at 50% molar content of butylene terephthalate (BT) units, while the aliphatic units are consisted of butylene adipate (BA) and butylene diglycolate (BD) units. The PBADT copolyesters have melting temperatures higher than 130 °C and manifest rapid crystallization, high elastic modulus (>129 MPa) and satisfied ductile tensile behavior (>770%). Their gas barrier performance and hydrophilicity all increase with increasing BD units. Compared with PBAT, faster hydrolysis and seawater degradation are observed, which is explained by the more hydrophilic structure of diglycolate. This work provides insights and direction for the development of high-performance yet environmentally degradable alternatives to conventional biodegradable aliphatic–aromatic polyesters.
研究领域:
材料科学
·
环境科学
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CHEMICAL ENGINEERING SCIENCE
·
2023
·
IF 4.7
Zeya Yang,Biao Li,Shuangde Li,Yibo Dou,Jingbin Han
Inorganic-organic hybrid film with intriguing properties has attracted great attention. Herein, a hybrid film that sodium dodecyl sulfate (SDS) modified layered double hydroxides (LDH) integrated with poly (butylene adipate-co-terephthalate) (PBAT) matrix was rationally fabricated. The hydroxyl groups of LDH exhibit the “one-stone-two-birds” function that has good barrier and degradable properties on composite film. The trapped water by the hydroxyl group of LDH and 2D tortuous pathway efficiently inhibits the diffusion of water, thus contributing to largely decreased water vapor transmission rates (WVTR) and oxygen transmission rates (OTR) of SDS@LDH/PBAT film. The optimized SDS@LDH (5%)/PBAT composite film with 80 μm showed WVTR and OTR of 57.67 g/(m 2 ·24 h·0.1 MPa) and 50.25 cm 3 /(m 2 ·24 h·0.1 MPa), which improved ∼ 72% and ∼ 52%, compared with that of pure PBAT film. More significantly, the hydroxyl group served as scissors that can cleave the ester bond of PBAT, endowing the highly degradable property of the used hybrid film. And the plastic decomposed valuable chemicals and assembled LDH after decomposition can be feasibly recycled. This work, therefore, provides a new cognition of 2D material-based functional film, and offers a blueprint for green upcycling of plastic barrier films.
研究领域:
材料科学
·
环境科学
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Surfaces and Interfaces
·
2025
·
IF 6.3
Xiaotao Liu,Yuexia Feng,Jian Lu,Jun Wu,Brian J. Boman
Microplastics can harm marine organisms by adsorbing contaminants while aging of microplastics in seawater might induce new risks. This study evaluated the effects of bio-aging on the benzo(a)pyrene adsorption and desorption of petroleum-based degradable PBAT/PBS microplastics in seawater. The surface functional groups of PBAT/PBS microplastics treated with 36 months of bio-aging in seawater (A-PBAT 36M /A-PBS 36M ) significantly increased the O/C ratio (67/61%) and -C=O content compared to virgin PBAT/PBS (V-PBAT/V-PBS). The maximum adsorption capacity of benzo(a)pyrene on V-PBAT/V-PBS in seawater was 213.1/213.6 μg g -1 , whereas significant higher adsorption capacity of 258.0 μg g −1 and 246.3 μg g −1 were observed for A-PBAT 36M and A-PBS 36M , respectively. There was no significant difference in the adsorption of benzo(a)pyrene on PE under different bio-aging times. Bio-aging marginally reduced the potential risk of PBAT due to lower desorption capacity of A-PBAT 36M . Density flooding theory indicated that A-PBAT 36M -benzo(a)pyrene binds were dominated by van der Waals, π-π stacking, and C-H-π/O-H-π interactions, while A-PBS 36M -benzo(a)pyrene binds were dominated by van der Waals and C-H-π/O-H-π interactions. The binding energy of A-PBAT 36M /A-PBS 36M to benzo(a)pyrene decreased to -31.52/-25.87 kcal mol -1 , confirming stronger adsorption than V-PBAT/V-PBS. The results of the study provide new insights into the environmental behavior of petroleum-based degradable plastics in the marine environment, especially the long-term microbial aging process.
研究领域:
环境科学
·
海洋污染
·
高分子化学
·
生态毒理学
·
吸附过程
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FOOD CHEMISTRY
·
2022
·
IF 9.231
Li Wang,Jingge Xu,Mengmeng Zhang,Hui Zheng,Li Li
This study aimed to reveal the quality changes of soy protein-based meat analogues at 4 °C, and to investigate the efficacy of antimicrobial packaging on maintaining the qualities of meat analogues during 10 days of storage. Cinnamaldehyde (CI) or tea polyphenols (TP) were incorporated in polylactic acid (PLA), polybutylene adipate (PBAT) and starch blends by extrusion technique to prepare antimicrobial packaging. The changes of meat analogues were characterized for morphology, water distribution, texture properties and microbiological analysis during 10 days of storage. Cinnamaldehyde loaded PLA/PBAT film effective retarded the growth of Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ) at 4 °C, giving an average reduction of E. coli and S. aureus of 3.6 and 4.1 log CFU/g on day 10, respectively. Results suggest that PLA/PBAT-CI film successfully prevents moisture from evaporation, maintains the texture properties and ensures the quality and safety of meat analogues.
研究领域:
食品科学
·
包装技术
·
微生物学
·
材料科学
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·Vol. 143
·期 6
·e58196
·
IF 2.8
Chao Shen,Tuanhui Jiang,Xiangbu Zeng,Nenggui Zhu,Shengnan Li,Xiang Zhang,Wei Gong,Li He
Polybutylene adipate-co-terephthalate (PBAT) is a promising biodegradable polymer, but its high cost limits wider use. This study integrates low-cost bamboo powder (BP) and chemical foaming injection molding to produce economical PBAT-based composites. A compatibilizer, PBAT-g-MAH, was produced via melt free-radical grafting. The influence of BP and PBAT-g-MAH on the mechanical, rheological, thermal, and foaming properties of PBAT composites was systematically investigated. Due to poor PBAT/BP compatibility, composites initially showed decreased mechanical, rheological, thermal, and foaming properties. At 30 wt.% BP, tensile strength decreased by 30.5% (from 23.24 to 16.16 MPa), whereas elongation at break declined by 45.3% (from 1243.5 to 679.8%). Foam morphology also deteriorated: the mean cell size increased from 32 to 58 μm, cell density dropped from 5.1 × 10 6 to 1.0 × 10 6 cells/cm 2 , and cell distribution became nonuniform. In contrast, the introduction of PBAT-g-MAH significantly improved interfacial interactions between BP and PBAT, leading to enhanced filler dispersion and the restoration of overall composite properties. PBAT/BP/PBAT-g-MAH composites showed performance comparable to neat PBAT, demonstrating that lightweight, biodegradable PBAT-based products can be fabricated while maintaining key properties by integrating natural fillers with compatibilization strategies and chemical foaming injection molding techniques.
研究领域:
材料科学
·
高分子工程
·
可生物降解聚合物
·
复合材料
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高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 5.2
Liang Zou,Jiawei Wang,Anze Shen,Yan Song,Qing Li,Jiang Zhai,Chang Liu,Su Chen
Poly(butyleneadipate-co-terephthalate) (PBAT), a highly promising biodegradable polymer, faces significant limitations in high-precision fused deposition modeling (FDM) 3D printing owing to its low melt strength, inadequate thermal conductivity, and insufficient mechanical properties. This article describes the rapid synthesis of Zn-ion-doped carbon quantum dots (Zn-CDs) using an efficient magnetic induction heating method. Zn-CDs/PBAT composite materials were successfully prepared by melt blending Zn-CDs with PBAT through twin-screw extrusion. Empirical evidence indicates that incorporating 0.5 wt % Zn-CDs into the composite material resulted in a tensile strength of 32.01 MPa and an elongation at break of 1302.37%. These values represent increases of 23.03% and 46.59%, respectively, compared to those of pure PBAT. Notably, the incorporation of Zn-CDs substantially decreased the melt viscosity of PBAT at elevated shear rates and established an effective three-dimensional heat conduction network, thereby significantly enhancing the processing fluidity and thermal conductivity of the material. Based on these excellent processing characteristics, we successfully achieved high-precision molding of PBAT on industrial-grade particle 3D printers for the first time. The results of the printing tests indicated that the interlayer adhesion of the Zn-CDs/PBAT printed components was 44.6% superior to that of pure PBAT. This improvement effectively addresses the challenges of inadequate interlayer adhesion and the propensity for deformation in products manufactured through 3D printing with pure PBAT. This study introduces an efficient strategy for developing high-performance, biodegradable 3D printing materials and highlights the significant potential of functionalized carbon quantum dots in polymer processing and modification.
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EUROPEAN POLYMER JOURNAL
·
2018
·
IF 3.741
Ruoyun Li,Linbo Wu,Bo-Geng Li
PEG-mb-PBAT (EB, for simplicity) multiblock copolymers were synthesized via chain extension/coupling of poly(ethylene glycol) (PEG) and poly(butylene adipate-co-terephthalate) (PBAT) diols, and used as modifiers to prepare blends of commercial poly( l -lactide) (PLLA) and EB via melt blending. The EB copolymers were characterized by 1 H NMR and DSC, and the PLLA70/EB30 blends were characterized by DSC, SEM, tensile and impact testing. The PEG segments in EB show greatly depressed crystallization as compared with PEG prepolymer, therefore, exhibit excellent plasticization effect on PLLA. Furthermore, they also compatibilize the PBAT microphase with PLLA matrix. Owing to strong interfacial adhesion, the PBAT micro-phases induces highly oriented shear yielding during impact process and therefore act as efficient tougheners of PLLA. Therefore, the blends possess highly improved toughness (impact strength 44 kJ/m 2 ) and excellent ductility (elongation 160%), and at the same time, retain sufficient stiffness. Furthermore, the L/EB blends show superior mechanical performances than the L/EP (PLLA/PEG-mb-PPA) blends reported by us previously.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
POLYMER COMPOSITES
·
2024
·
IF 4.8
Zhengxiao Li,Yuemeng Sun,Linzhi Liang,Zhenliang Lu,Yanlin Xie,Beibei Dong,Xiongwei Qu,Shengli Chen
A comb-like polyacrylic superdispersant (CPS) consisting of polyacrylic acid- co -poly(isobutyl alcohol polyoxyethylene ether) (PBAT) was synthesized as a dispersant for preparing nano-calcium carbonate/PBAT (nano-CaCO 3 /PBAT) composite through internal mixing. Chemical structure analysis revealed that CPS adsorbed onto the surface of nano-CaCO 3 via coordination between carboxyl groups and calcium ions, effectively dispersing particles using a comb-shaped side chain and electrostatic repulsion. This improved compatibility between nano-CaCO 3 and PBAT resulted in enhanced crystallinity, tensile stress, and elongation at break. By incorporating only 0.4 wt% CPS into 10 wt% nano-CaCO 3 (based on PBAT weight), the dispersion of nano-CaCO 3 was significantly improved, leading to a superior two-phase interface in the composite material. Consequently (in the film's machine direction), elongation at break increased from 882 ± 49% to 1047 ± 31%, while tensile strength increased from 22.10 ± 2.06 MPa to 26.70 ± 1.14 MPa. These findings facilitate the production of high-performance PBAT composites suitable for blow molding into biodegradable films. Highlights Comb-like polyacrylic superdispersant synthesized by aqueous polymerization. Nano-CaCO 3 modified via the adsorption and dispersion of CPS. Stress and elongation of PBAT composite reinforced by CPS-modified nano-CaCO 3 . CPS-modified nano-CaCO 3 /PBAT composite films processed through blow molding. Enhancement by coordination, hydrogen-bond action, and microphase separation.
研究领域:
材料科学
·
高分子化学
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高影响因子
DESALINATION
·
2022
·
IF 11.211
Ruiqi Zhang,Wenjuan Han,Hongjian Jiang,Xiaofeng Wang,Bo Wang,Chuntai Liu,Changyu Shen
Solar vapor generator (SVG) is undoubtedly a sustainable water treatment technology and good candidate to resolve the water shortage. However, the non-degradable polymer based SVG will bring extra environmental risk when they are scrapped. Herein, we fabricate a degradable interfacial solar vapor generator (DISVG) using PBAT monolith with hierarchical porous morphology via in-situ polymerization of PDA and dip-coating of MXene . Contributed to the MXene and PDA's synergetic effects, the DISVG demonstrates promising solar absorbance (up to 97.07 %), superhydrophilicity, and high evaporation efficiency. Consequently, the DISVG exhibit a high evaporation rate of 1.87 kg m −2 h −1 with a solar steam efficiency of 86.19 % under 1 sun irradiation. The DISVG shows excellent salt and oil resistance because of its good hydrophilicity . Moreover, the DISVG possesses excellent purification capability that can reject above 99 % ions in seawater and dyes in sewage . This research demonstrates a sustainable strategy for the fabrication of DISVG with environmentally friendly, highly efficient and well reliable solar vapor generators for seawater desalination and sewage purification.
研究领域:
环境科学
·
材料科学
·
水处理技术
·
可持续能源
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高影响因子
危险品化学品经营许可证（带存储）