PEEK Nanocomposites Containing Bi2O3 or BaSO4: A Complete Determination of X‐Ray Shielding, Mechanical, Thermal, and Wear Characteristics Under Harsh Radiation Conditions DOI

Chalisa Moonlek,

Ekachai Wimolmala, Kasinee Hemvichian

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

ABSTRACT With growing demands for enhanced safety, the development of X‐ray shielding materials with superior attenuation, mechanical strength, and improved resistance to radiation‐induced degradation has become crucial. Among polymeric materials, poly(ether ether ketone) (PEEK) exhibits exceptional radiation resistance, which extends its operational lifespan minimizes premature failures in protective systems. Therefore, this work evaluated PEEK nanocomposites containing 0–60 wt% bismuth oxide (Bi 2 O 3 ) or barium sulfate (BaSO 4 their potential applications under harsh conditions. The results indicated that incorporating Bi BaSO substantially increased attenuation (20–60‐fold improvement), surface hardness, density compared pristine PEEK. Additionally, after exposure 500 kGy gamma irradiation, only minimal changes were observed tensile thermal stability, density, indicating durability Although impact strength wear slightly declined was notably lower nanocomposites, suggesting acted as effective suppressors due high protection. These findings highlighted next‐generation offering protection stability high‐dose irradiation conventional thereby making them promising candidates advanced

Язык: Английский

Study of Construction of Innovative Barite/Waterborne Polyurethane/Low-Density Polyethylene Composites for Enhanced X-Ray Shielding Performance DOI Open Access
Xiwei Xu,

Shujin Shi,

Xiawei Yang

и другие.

Polymers, Год журнала: 2025, Номер 17(4), С. 451 - 451

Опубликована: Фев. 8, 2025

X-rays’ high-energy nature poses risks to human health. Traditional X-ray shielding materials often contain toxic lead and have drawbacks like bulkiness rigidity. Consequently, there is an increasing need develop lightweight, non-toxic, flexible, efficient materials. In this study, we modified barite with waterborne polyurethane (WPU) systematically investigated the effects of WPU on barite’s properties. The modification not only reduced tendency (B) agglomerate but also enhanced its compatibility polymers, thereby significantly improving mechanical properties LDPE/WPU-B composites. Compared unmodified in LDPE/B composites, tensile flexural modulus composites increased by 22.31% 29.64%, respectively. With 20% WPU-modified barite, radiation efficiency 5%. When WPU-B content reached 40%, composite exceeded 90% for tube voltages ranging from 60 kV 120 kV, achieving a equivalent 0.38 mmPb at 100 kV. This novel has great potential low-dose applications.

Язык: Английский

Процитировано

0

PEEK Nanocomposites Containing Bi2O3 or BaSO4: A Complete Determination of X‐Ray Shielding, Mechanical, Thermal, and Wear Characteristics Under Harsh Radiation Conditions DOI

Chalisa Moonlek,

Ekachai Wimolmala, Kasinee Hemvichian

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

ABSTRACT With growing demands for enhanced safety, the development of X‐ray shielding materials with superior attenuation, mechanical strength, and improved resistance to radiation‐induced degradation has become crucial. Among polymeric materials, poly(ether ether ketone) (PEEK) exhibits exceptional radiation resistance, which extends its operational lifespan minimizes premature failures in protective systems. Therefore, this work evaluated PEEK nanocomposites containing 0–60 wt% bismuth oxide (Bi 2 O 3 ) or barium sulfate (BaSO 4 their potential applications under harsh conditions. The results indicated that incorporating Bi BaSO substantially increased attenuation (20–60‐fold improvement), surface hardness, density compared pristine PEEK. Additionally, after exposure 500 kGy gamma irradiation, only minimal changes were observed tensile thermal stability, density, indicating durability Although impact strength wear slightly declined was notably lower nanocomposites, suggesting acted as effective suppressors due high protection. These findings highlighted next‐generation offering protection stability high‐dose irradiation conventional thereby making them promising candidates advanced

Язык: Английский

Процитировано

0