Transfer of Graphene CVD to Surface of Low Density Polyethylene (LDPE) and Poly(butylene adipate-co-terephthalate) (PBAT) Films: Effect on Biodegradation Process

Maldonado, L.; Muñoz, Pablo; Fechine, Guilhermino J. M.

doi:10.1007/s10924-018-1202-y

Cited by 13 publications

(1 citation statement)

References 35 publications

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“…In order to facilitate the expansion of PBAT packaging products for market applications, many inorganic fillers and natural fibers have been incorporated into the PBAT matrix to reduce the production cost of the products, such as silica [ 10 , 11 ], talc [ 12 , 13 ], and so on. Many reinforcing fillers and other kinds of resins are incorporated into the PBAT matrix to improve the mechanical properties of the products, such as polylactic acid (PLA) [ 14 , 15 ], polyethylene [ 16 , 17 ], polypropylene (PP) [ 18 , 19 ], polyglycolic acid (PGA) [ 20 , 21 ], and so on. As one of the most widely used fillers in plastic modification, the price of CaCO 3 is only 3%–5% of that of PBAT.…”

Section: Introductionmentioning

confidence: 99%

Research on Properties of PBAT/CaCO3 Composite Films Modified with Titanate Coupling Agent

et al. 2023

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High cost, low crystallinity, and low-melt strength limit the market application of the biodegradable material poly (butylene adipate-co-terephthalate) (PBAT), which has become a major obstacle to the promotion of PBAT products. Herein, with PBAT as resin matrix and calcium carbonate (CaCO3) as filler, PBAT/CaCO3 composite films were designed and prepared with a twin-screw extruder and single-screw extrusion blow-molding machine designed, and the effects of particle size (1250 mesh, 2000 mesh), particle content (0–36%) and titanate coupling agent (TC) surface modification of CaCO3 on the properties of PBAT/CaCO3 composite film were investigated. The results showed that the size and content of CaCO3 particles had a significant effect on the tensile properties of the composites. The addition of unmodified CaCO3 decreased the tensile properties of the composites by more than 30%. TC-modified CaCO3 improved the overall performance of PBAT/CaCO3 composite films. The thermal analysis showed that the addition of titanate coupling agent 201 (TC-2) increased the decomposition temperature of CaCO3 from 533.9 °C to 566.1 °C, thereby enhancing the thermal stability of the material. Due to the heterogeneous nucleation of CaCO3, the addition of modified CaCO3 raised the crystallization temperature of the film from 97.51 °C to 99.67 °C and increased the degree of crystallization from 7.09% to 14.83%. The tensile property test results showed that the film reached the maximum tensile strength of 20.55 MPa with the addition of TC-2 at 1%. The results of contact angle, water absorption, and water vapor transmission performance tests showed that TC-2 modified CaCO3 increased the water contact angle of the composite film from 85.7° to 94.6° and decreased the water absorption from 13% to 1%. When the additional amount of TC-2 was 1%, the water vapor transmission rate of the composites was reduced by 27.99%, and the water vapor permeability coefficient was reduced by 43.19%.

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Section: Introductionmentioning

confidence: 99%

Research on Properties of PBAT/CaCO3 Composite Films Modified with Titanate Coupling Agent

et al. 2023

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Biodegradation of Plastics by Microorganisms

Mazumder¹,

Jubayer²,

Ranganathan³

2022

Biotechnology for Zero Waste

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Controlled localization of graphene oxide to improve barrier, biodegradation and mechanical properties of PBAT/EVOH

Elhamnia,

Hashemi Motlagh,

Jafari

2024

J of Applied Polymer Sci

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Incorporating graphene oxide (GO) with controlled localization into poly(butylene adipate‐co‐terephthalate) (PBAT) blends with poly(ethylene vinyl alcohol) (EVOH) aimed to improve barrier properties, biodegradability, and mechanical strength of PBAT. The PBAT/EVOH/GO nanocomposites containing 0 to 1 wt% of GO were prepared by a reactive mixing process in internal mixer. Microscopic images confirmed that the GO nanoplatelets are mainly localized in PBAT phase and then at the interface, contrary to the thermodynamic affinity of GO toward EVOH. The reactive nature of PBAT/EVOH/GO nanocomposites was confirmed via time‐sweep rheological studies where specific changes were observed in melt viscosity over time. The results of microscopic studies, rheometry, tensile test, and dynamic mechanical thermal analysis (DMTA) confirmed that localizing GO at the interface establishes strong interactions between PBAT and EVOH. By the addition of 0.75 wt% GO, tensile and yield strength were improved by 19% and 45%, respectively. Increasing GO significantly increased the hydrolysis degradation rate of the nanocomposites. Furthermore, the addition of GO considerably decreased the oxygen and water vapor permeability of the blends by up to 40% at 1 wt% GO.

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Transfer of Graphene CVD to Surface of Low Density Polyethylene (LDPE) and Poly(butylene adipate-co-terephthalate) (PBAT) Films: Effect on Biodegradation Process

Cited by 13 publications

References 35 publications

Research on Properties of PBAT/CaCO3 Composite Films Modified with Titanate Coupling Agent

Research on Properties of PBAT/CaCO3 Composite Films Modified with Titanate Coupling Agent

Biodegradation of Plastics by Microorganisms

Controlled localization of graphene oxide to improve barrier, biodegradation and mechanical properties of PBAT/EVOH

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