Ultra-high-molecular-weight polyethylene/hydrogen-rich benzoxazine composite with improved interlaminar shear strength for cosmic radiation shielding and space environment applications

Cha, Ji-Hun; Kumar, Sathish Kumar Sarath; Noh, Jung-Eon; Choi, Joo-Seung; Kim, Yun‐Ho; Kim, Chun-Gon

doi:10.1016/j.compstruct.2022.116157

Cited by 16 publications

(4 citation statements)

References 24 publications

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“…According to the division method of Philips Petroleum Company, polyethylene with a molecular weight of more than 1.5 million is called ultra-high-molecular-weight polyethylene [16,17]. UHMWPE is a kind of thermoplastic engineering material with a moderate price and excellent performance due to its extremely high molecular weight [18]. UHMWPE has incomparable comprehensive properties, such as abrasion resistance, impact resistance, low-temperature resistance, corrosion resistance, and low density compared with ordinary polymers.…”

Section: Polymer-material-modified Asphaltmentioning

confidence: 99%

Rheological Properties and Microscopic Morphology Evaluation of UHMWPE-Modified Corn Stover Oil Bio-Asphalt

Li,

Luo,

Jie

et al. 2023

Buildings

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In order to promote the efficient utilization of bio-oil, corn stover oil and petroleum asphalt were used to prepare bio-asphalt. UHMWPE was adopted to strengthen the high-temperature properties of bio-asphalt. UHMWPE-modified corn stover oil asphalt was prepared. Rheological and microscopic tests were carried out to study its performance. The softening point and viscosity of the modified asphalt were enhanced with a rise in the UHMWPE dosage. Its ductility and deformation ability increased at 5 °C. An MSCR test suggested that the asphalt’s creep recovery ability and anti-rutting properties decreased at a high stress level. Meanwhile, the low-temperature rheological behavior of UHMWPE-modified corn stover oil asphalt was superior to that of neat asphalt. The corn stover oil ameliorated the asphalt’s low-temperature properties but weakened its high-temperature behavior. The optimal preparation schemes for UHMWPE-modified corn stover oil asphalt were recommended through a comprehensive analysis of the properties. The recommended dosage of UHMWPE was 3–4%, while the corn stover oil dosage was 5%. However, when the dosage of corn stover oil was 10%, the recommended dosage of UHMWPE was 4%. UHMWPE powder was melted and cross-linked with neat asphalt during high-temperature preparation, demonstrating that UHMWPE can enhance the properties of asphalt. The UHMWPE polymer macromolecules can be dispersed in corn stover oil. UHMWPE can form a compact and robust network structure with asphalt. The feasible application of corn stover oil in road engineering was verified, which provides efficient solutions for waste utilization. This study will contribute to the sustainable development of road construction.

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Section: Polymer-material-modified Asphaltmentioning

confidence: 99%

Rheological Properties and Microscopic Morphology Evaluation of UHMWPE-Modified Corn Stover Oil Bio-Asphalt

Li,

Luo,

Jie

et al. 2023

Buildings

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“…Benzoxazine resin is an important thermosetting resin, with unique N and O‐containing heterocyclic ring as characteristic functional group, which could undergo ring‐opening polymerization 1 . It shows great potential in aerospace, 2 printed circuit board, 3 structural material and son on, 4 owing to its excellent properties such as high thermal stability, 5 high modulus, high strength, 5 good dielectric properties, 6 and so forth. Various amines, phenols and aldehydes originated from both biomass and petroleum can be used as raw materials to synthesize benzoxazines, offering excellent molecular design flexibility 7 .…”

Section: Introductionmentioning

confidence: 99%

Optimizing the dielectric and mechanical properties of melamine based‐benzoxazine resin by copolymerizing with epoxy resin

Fan

Zhang

et al. 2023

J of Applied Polymer Sci

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Benzoxazine resins are suffering from high curing temperature, low crosslinking density, and poor toughness, which hampers their broad applications. The introduction of melamine during synthesis has been shown useful in improving these properties, but the dielectric property was deteriorated heavily. Epoxy resins show higher crosslinking density and better toughness but the thermal properties are relatively poor. Herein, the melamine based‐benzoxazine MBF was copolymerized with epoxy resin E51 in this work in order to improve the dielectric properties. The curing reactivity, polymerization mechanism and the comprehensive properties such as thermal, dielectric and mechanical properties were systematically verified. It is found that the abundant active functional groups such as amino and phenolic groups in MBF could catalyze and copolymerize with E51 and form uniform copolymers poly(MBF‐E) at various proportions. With the increasing of epoxy resins, more polar amino groups was consumed, thus the polarity and the water absorption of the copolymers decreased. Additionally, the dielectric constant decreased from 3.67 for poly(MBF) to 2.94 for poly(MBF‐60E). Meanwhile, the highest increasement of tensile strength and elongation at break value reached 130% and 70%, respectively, which may be caused by the higher crosslinking density and more flexible ether bond formed.

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“…Indeed, the wide variety of radiation encountered in space including galactic cosmic radiation (GCR) and solar energetic particles (SEPs) can have similar effects and also require proper shielding. [6][7][8] Aiming to attenuate these radiations, researchers tried to utilize the existing materials (lead, concrete, aluminium, water, and so on) or developed new ones. 9,10 In fact, heavy materials and water are more suitable to be used inside nuclear reactors and to surround radioactive sources.…”

Section: Introductionmentioning

confidence: 99%

Phthalonitrile resin reinforced silane surface modified boron carbide: Efficient neutrons screening and exceptional thermal properties

Abdous

Derradji

Mehelli

et al. 2023

High Performance Polymers

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The design of lightweight neutron shields has been restricted for quite some time to the use of epoxy thermosets as the main building blocks. Meanwhile, the recent developments in the field of polymers suggest otherwise. Indeed, the phthalonitrile (PN) resins have taken the lead over traditional thermosets in many demanding applications. Therefore, in a vision to introduce newer matrices with better performances and to further expand the applications of the PN resins into the nuclear field, the neutron shielding efficiency along with the thermal resistance performances of the neat PN polymer and its subsequent silane surface-modified B4C-reinforced composites were investigated. The neutron shielding measurements were performed using an optimized experimental setup at the NUR research reactor in Algiers. The neat PN polymer displayed better thermal neutron screening performances than the epoxy and benzoxazine, with a macroscopic cross-section (Σ) of a 1.936 cm−1, equivalent to a mean free path (λ) of 0.358 cm. The effect of the particle amount was also studied to maximize the shielding ability of the developed materials. For instance, the PN composite containing 20 wt. % of B4C displayed an outstanding screening ratio of about 99.8% for a sample thickness of 13 mm. Finally, the remarkable findings were put into context by providing multifaceted comparisons with the available shielding materials.

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Ultra-high-molecular-weight polyethylene/hydrogen-rich benzoxazine composite with improved interlaminar shear strength for cosmic radiation shielding and space environment applications

Cited by 16 publications

References 24 publications

Rheological Properties and Microscopic Morphology Evaluation of UHMWPE-Modified Corn Stover Oil Bio-Asphalt

Rheological Properties and Microscopic Morphology Evaluation of UHMWPE-Modified Corn Stover Oil Bio-Asphalt

Optimizing the dielectric and mechanical properties of melamine based‐benzoxazine resin by copolymerizing with epoxy resin

Phthalonitrile resin reinforced silane surface modified boron carbide: Efficient neutrons screening and exceptional thermal properties

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