Current Development of Electron Beam Irradiation of Natural Rubber–Polymer Blends

Loo, Kheng Hooi; Sin, Lee Tin; Bee, Soo Tueen; Ratnam, Chantara Thevy; Tey, Jing Yuen; Tee, Tiam Ting; Rahmat, Abdul Razak

doi:10.1080/03602559.2017.1295312

Cited by 4 publications

(2 citation statements)

References 74 publications

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“…thermal stability, high T g , low moisture absorption and coefficient of linear expansion [5][6][7][8]. During the service of spacecraft, it is strongly affected by various space environment factors, such as high vacuum, atomic oxygen (AO), cold and thermal cycle, radiation, ultraviolet (UV) radiation and space debris [9][10][11][12][13], which will lead to the performance degradation of polymer materials. The environment is one of the main reasons that affect the reliability and life-span of spacecraft and induce the performance degradation of spacecraft materials.…”

Section: Introductionmentioning

confidence: 99%

Thermal, mechanical and shape fixity behaviors of shape memory cyanate under γ-ray radiation

Wang¹,

Zhang²,

Liu³

et al. 2022

Smart Mater. Struct.

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Smart materials and structures have developed rapidly, especially their application in the aerospace field has been widely valued and recognized in recent years. Shape memory cyanate ester (SMCE) resin as a class of smart polymers has a broad application prospect in space deployable structure due to the high glass transition temperature (Tg) and excellent mechanical properties. In this work, the high storage modulus SMCE resins were prepared by regulating cyanate prepolymer with small molecules, showing high glass transition temperature (Tg > 218℃), high Young’s modulus (E’ > 3.15 GPa), and outstanding γ-ray radiation resistance. The SMCE resins maintained a high shape fixity rate (Rf > 95 %) at high operating temperatures (100 ℃ and 120 ℃) for 30 days, providing a great potential application for active deformation structures. Moreover, the synergy of carboxyl (-COOH) functionalized multi-walled carbon nanotubes (CNT) and short carbon fibers (CF) enhanced the thermodynamic properties and shape-changing function of the SMCE composites. The spring made by SMCE composite exhibits 360° freedom rotation, which can be used as smart structures in the aerospace field.

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Section: Introductionmentioning

confidence: 99%

Thermal, mechanical and shape fixity behaviors of shape memory cyanate under γ-ray radiation

Wang¹,

Zhang²,

Liu³

et al. 2022

Smart Mater. Struct.

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“…Electron beam was used to improve many mechanical properties such as that in styrene butadiene/natural rubber to increase resistance to abrasion [ 25 ]. A low dose of electron beam was used to enhance mechanical and thermal properties of vulcanized natural rubber/polymers [ 26 ]. The different aging times and electron beam radiation doses of silica/rubber were studied focusing on Mooney relaxation [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Film and latex forms of silica-reinforced natural rubber composite vulcanized using electron beam irradiation

Reowdecha

Dittanet

Sae‐Oui³

et al. 2021

Heliyon

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A thorough study was undertaken of the synthesis of natural rubber-silica treated with bis-(3-triethoxysilylpropyl) tetrasulfane (NR/TSi) vulcanized using electron beam irradiation (EB) and sulfur by varying the EB dose. The surface treatment of silica was confirmed using Fourier-transform infrared spectroscopy and scanning electron microscopy images. Composites were cast and vulcanized in film and latex forms compared with sulfur vulcanization. Investigation covered the mechanical properties, thermal stability, swelling resistance, and degradation under heat and humidity testing of the NR/TSi composites. It was found that the TSi had great dispersal in the NR matrix. TSi in NR matrix had a positive effect on mechanical properties, swelling in water and toluene, and thermal stability. Increasing the radiation intensity up to 250 kGy led to superior mechanical properties but for further increase in the radiation intensity, the tensile strength dropped. Degradation under thermal and humidity testing showed that the un-vulcanized composite had higher physical degradation than the vulcanized samples. Therefore, NR/TSi vulcanized using 200 kGy EB vulcanized in latex form had the greatest mechanical properties for various applications without producing any residual vulcanizing agent.

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Effectiveness of microwave processing approach and green blowing agents usage in foaming natural rubber

Ariff

Afolabi

Salmazo

et al. 2020

Journal of Materials Research and Technology

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Current Development of Electron Beam Irradiation of Natural Rubber–Polymer Blends

Cited by 4 publications

References 74 publications

Thermal, mechanical and shape fixity behaviors of shape memory cyanate under γ-ray radiation

Thermal, mechanical and shape fixity behaviors of shape memory cyanate under γ-ray radiation

Film and latex forms of silica-reinforced natural rubber composite vulcanized using electron beam irradiation

Effectiveness of microwave processing approach and green blowing agents usage in foaming natural rubber

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