LDPE matrix composites reinforced with dysprosium-boron containing compounds for radiation shielding applications

Avcıoğlu, Suna

doi:10.1016/j.jallcom.2022.166900

Cited by 16 publications

(12 citation statements)

References 50 publications

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“…Compared with other biodegradable polyesters ( Table 3 ), PBATGA copolyesters have the best toughness and higher strength than linear low−density polyethylene (LLDPE) [ 35 ], low−density polyethylene (LDPE) [ 36 ], PBSA, PBAF, PEAT and poly(propylene carbonate) (PPC). In summary, PBATGA copolyesters have a lower modulus.…”

Section: Resultsmentioning

confidence: 99%

Study on Properties and Degradation Behavior of Poly (Adipic Acid/Butylene Terephthalate-Co-Glycolic Acid) Copolyester Synthesized by Quaternary Copolymerization

Wang

Hou

Huang

et al. 2023

IJMS

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At present, the development and usage of degradable plastics instead of traditional plastics is an effective way to solve the pollution of marine microplastics. Poly (butylene adipate-co-terephthalate) (PBAT) is known as one of the most promising biodegradable materials. Nevertheless, the degradation rate of PBAT in water environment is slow. In this work, we successfully prepared four kinds of high molecular weight polyester copolyesters (PBATGA) via quaternary copolymerization. The results showed that the intrinsic viscosity of PBATGA copolymers ranged from 0.74 to 1.01 dL/g with a glycolic acid content of 0–40%. PBATGA copolymers had excellent flexibility and thermal stability. The tensile strength was 5~40 MPa, the elongation at break was greater than 460%, especially the elongation at break of PBATGA10 at 1235%, and the thermal decomposition temperature of PBATGA copolyesters was higher than 375 °C. It was found that PBATGA copolyester had a faster hydrolysis rate than PBAT, and the weight loss of PBATGA copolymers showed a tendency of pH = 12 > Lipase ≈ pH = 7 > pH = 2. The quaternary polymerization of PBAT will have the advantage of achieving industrialization, unlike the previous polymerization process. In addition, the polymerization of PBATGA copolyesters not only utilizes the by-products of the coal chemical industry, but also it can be promising in the production of biodegradable packaging to reduce marine plastic pollution.

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Section: Resultsmentioning

confidence: 99%

Study on Properties and Degradation Behavior of Poly (Adipic Acid/Butylene Terephthalate-Co-Glycolic Acid) Copolyester Synthesized by Quaternary Copolymerization

Wang

Hou

Huang

et al. 2023

IJMS

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“…The observed improvement in neutron shielding by commercial B 4 C-doped PVA nanocomposite fibers is not as high as previously reported 1 wt% B 4 C composites. [16,17,63] Because large boron carbide particles hinder the development of nanofibers, a continuous fiber network could not be created by using the B 4 C(C)/PVA solution, resulting in restricted neuron shielding performance. On the other hand, neutron flux on the nanocomposite fibers fabricated using sol-gel synthesized nano-sized boron carbide particles was measured as 1533 cps, and a corresponding neutron shielding capability of 7.4 ± 1.8% with 0.9274 ± 0.011 permeability (Figure 10A,B) was obtained.…”

Section: Radiation Shielding Capacities Of B 4 C/pva Nanocomposite Fi...mentioning

confidence: 99%

Boron carbide reinforced electrospun nanocomposite fiber mats for radiation shielding

et al. 2023

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In this study, 1 wt% boron carbide (B4C) reinforced PVA nanofibers were fabricated by the electrospinning technique as a new generation of ultra‐thin, lightweight, and flexible neutron shielding nanocomposites. The influence of B4C particles' size and morphology on the fiber formation and radiation shielding performance of fiber mats was investigated. The results indicate that the particle characteristics have a dramatic influence on the formation and properties of nanocomposites. The thicknesses of individual fibers reinforced with sol–gel synthesized nano‐sized boron carbide particles were in the range of 50–250 nm, while those containing commercial B4C powder were produced in the thickness range of 1–2 μm. In contrast to the commercial particles, the sol–gel synthesized nano B4C particles enhanced the fiber mat's density and the roundness of individual fibers. Both theoretical and experimental radiation shielding studies showed that B4C reinforcement successfully improved the neutron and gamma attenuation of the neat PVA matrix. Furthermore, it was found that a 6.5 mm thick PVA nanofiber mat, reinforced with only 1 wt% B4C nanoparticles shielded up to about 7.4% of the initial neutron flux. Compared to the neat PVA fiber mat, reinforcement of PVA fibers with 1 wt% sol–gel synthesized nano‐sized boron carbide particles enhanced the neutron shielding by 50.31%. Moreover, even though B4C is not an effective gamma shielding reinforcement, the amplified density of nanocomposite fiber mats also enhanced gamma attenuation.

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“…In this study, an attempt was made to synthesize SnO 2 and BaSO 4 nanoparticles in the presence of aqueous extract of Neem tree fruits ( Azadirachta indica ) and then to investigate the protective effect of LDPE-based composites and nanocomposites against X-rays. LDPE polymer was considered due to its low price, flexibility and availability [ 44 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

A new method in the production of protective sheets against X-ray radiation

teymoori,

Pourshamsian

2024

Heliyon

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LDPE matrix composites reinforced with dysprosium-boron containing compounds for radiation shielding applications

Cited by 16 publications

References 50 publications

Study on Properties and Degradation Behavior of Poly (Adipic Acid/Butylene Terephthalate-Co-Glycolic Acid) Copolyester Synthesized by Quaternary Copolymerization

Study on Properties and Degradation Behavior of Poly (Adipic Acid/Butylene Terephthalate-Co-Glycolic Acid) Copolyester Synthesized by Quaternary Copolymerization

Boron carbide reinforced electrospun nanocomposite fiber mats for radiation shielding

A new method in the production of protective sheets against X-ray radiation

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