Preparation and properties of NR/EUG composite film

Tao, Lian; Fu, Rongzhen; Bao, Kexu; Lin, Jinjian; Zhang, Jiaheng

doi:10.1016/j.indcrop.2022.115423

Cited by 7 publications

(5 citation statements)

References 28 publications

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“…16 The stretching vibrational peak of C�C in EUG and EM occurs at 1660 cm EUG is a polymer material with a high propensity for crystallization. 23 X-ray diffraction (XRD) was used to observe the diffraction results of EUG molecules. The spectrum after normalization of the XRD results of EUG and EM is shown in Figure 2a.…”

Section: Resultsmentioning

confidence: 99%

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Modified Natural Eucommia Ulmoides Gum Effectively Improves the Toughness and Strength of Epoxy Resins

Liu,

Chen,

Yan

et al. 2024

ACS Appl. Polym. Mater.

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Epoxy resins are commonly utilized for their robust strength and high modulus. However, their brittleness is a drawback caused by their elevated cross-linking density, which restricts their suitability for numerous applications. In this study, natural eucommia ulmoides gum (EUG) underwent modification with maleic anhydride (MA) and was used to toughen epoxy resin. The modified EUG contains active sites that effectively participate in the curing process of epoxy resin, resulting in lower cross-linking density. Additionally, during the curing process, EM particles cluster together and form a "sea−island" structure, providing epoxy resin with an additional mechanism for energy dissipation and enhancing its damage resistance. The incorporation of 1% EM results in a 26.5% increase in the fracture toughness and a 40% increase in the elongation at break of epoxy resin. This research offers a validated approach for utilizing biobased materials to reinforce the toughness of epoxy resin.

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Section: Resultsmentioning

confidence: 99%

“…EUG is a polymer material with a high propensity for crystallization . X-ray diffraction (XRD) was used to observe the diffraction results of EUG molecules.…”

Section: Resultsmentioning

confidence: 99%

Modified Natural Eucommia Ulmoides Gum Effectively Improves the Toughness and Strength of Epoxy Resins

Liu,

Chen,

Yan

et al. 2024

ACS Appl. Polym. Mater.

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“…EUG exhibits crystalline properties along with flexibility and plasticity due to its highly ordered trans and double bond molecular structure. 33 The partially cross-linked EUG has been applied as SMPs due to its distinctive characteristics, including exceptional shape recovery stress and significant deformability. 34−38 The previous study employed polyolefin elastomer (POE) and EUG to fabricate a TPV with SME.…”

Section: Introductionmentioning

confidence: 99%

“…These polymers, such as PLA, polycaprolactone (PCL), poly(glycolic acid), and polyhydroxyalkanoates, are derived from renewable resources and undergo complete decomposition in the natural environment. − The future trajectory of SMPBs lies in the utilization of green and sustainable polymeric materials to produce biobased SMPBs, ensuring resource sustainability and aligning with the “dual carbon strategy.” Eucommia ulmoides gum (EUG) is a natural rubber resource derived from the Eucommia ulmoides Qliv tree, primarily distributed in the central and southern regions of China. , The chemical constituent of EUG is trans -1,4-polyisoprene, an isomer of NR ( cis -1,4-polyisoprene). EUG exhibits crystalline properties along with flexibility and plasticity due to its highly ordered trans and double bond molecular structure . The partially cross-linked EUG has been applied as SMPs due to its distinctive characteristics, including exceptional shape recovery stress and significant deformability. − The previous study employed polyolefin elastomer (POE) and EUG to fabricate a TPV with SME.…”

Section: Introductionmentioning

confidence: 99%

Biobased and Biodegradable Shape Memory Polymers of Eucommia Ulmoides Gum and Polycaprolactone via Dynamic Vulcanization

Kang,

Cui,

et al. 2024

Ind. Eng. Chem. Res.

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“…The unsaturated structure also affords NR versatile chemical modification strategies. On the other hand, NR is very susceptible to oxidation due to the highly unsaturated structure, which results in poor thermal-oxidative aging resistance and ozone resistance [ 3 , 4 , 5 , 6 ]. Nevertheless, not all polymers containing unsaturated repeating units are prone to being oxidized.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamic and Dissipative Particle Dynamic Simulation on the Miscibility of NR/CR Blends

Yuan

Jiang

et al. 2023

Polymers

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Natural rubber (NR) exhibits good elasticity, flexural resistance, wear resistance, and excellent mechanical properties, and it has been widely used in aerospace, transportation, medical, and health fields. For NR, however, the resistance to thermal-oxidation and ozone aging is fairly poor. Although aging properties of NR can be significantly improved with the incorporation of chloroprene rubber (CR) according to some references, the miscibility between NR and CR, the morphologies of the binary blends, and so on are revealed ambiguously. In this work, molecular dynamics simulation (MD) and dissipative particle dynamics (DPD) simulation were carried out to predict the compatibility between natural rubber and chloroprene rubber in view of Flory–Huggins parameters. The morphologies of the blends were obtained with the use of the DPD method. The simulation results were furtherly examined by means of Fourier transform infrared spectroscopy (FT-IR) and dynamic mechanical analysis (DMA). It was found that the miscibility between NR and CR is poor. Nevertheless, the miscibility could be improved when the content of CR is 50% or 90%. In addition, spinodal decomposition with a critical temperature of 390 K would take place according to the phase diagram. Microphase structure such as spherical, lamellar, and bicontinuous phases can be found with different contents of CR in the blends with the results of morphologies analysis.

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Preparation and properties of NR/EUG composite film

Cited by 7 publications

References 28 publications

Modified Natural Eucommia Ulmoides Gum Effectively Improves the Toughness and Strength of Epoxy Resins

Modified Natural Eucommia Ulmoides Gum Effectively Improves the Toughness and Strength of Epoxy Resins

Biobased and Biodegradable Shape Memory Polymers of Eucommia Ulmoides Gum and Polycaprolactone via Dynamic Vulcanization

Molecular Dynamic and Dissipative Particle Dynamic Simulation on the Miscibility of NR/CR Blends

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