Self-adhesion X-ray Shielding Composite Material of EPDM Rubber with Barite: Mechanical Properties

Abstract

It is actual now to work out new radiation protecting sheeting on the basis of non-curing polymeric composition which possess self-adhesion properties, are easily mounted and dismantled and provide high tightness and low permeability. Mechanical properties of non-curing composites consisting of ethylene propylene diene monomer (EPDM), industrial oil (IO), alkyl phenol-formaldehyde resin (PF) with addition of barite (52 %) to the total material volume were investigated in this article. The aim of investigation is to find optimal content of the above mentioned components at which it would be possible to get the following properties: composite would be sticky enough (peel strength not less than 4 N/cm); character of a separation would be cohesive (on a material) and thus there would be no migration of softener and satisfactory resistance of fluidity. The results showed that PF addition till 20 % in the system EPDM/PF leads to the increasing of adhesive strength, in this case optimal oil concentration in the system EPDM/PF/IO is in the interval from 45 till 55 %. New self-adhesion lead-free material, exhibited higher X-ray-shielding properties, is also received in the result of investigation.

Comparative X-ray Shielding Properties of Single-Layered and Multi-Layered Bi2O3/NR Composites: Simulation and Numerical Studies

“…On the other hand, shielding equipment, such as personal protective equipment (PPE) and covers for transporting casks, requiring exceptional flexibility, high strength, and a large amount of elongation from the materials, relies on natural and synthetic rubber composites. For example, Bi 2 O 3 /NR, Bi 2 O 3 /EPDM, BaSO 4 /EPDM, and W/SR composites were among recently developed X-ray shielding rubber materials that offered not only effective X-ray attenuation abilities but also sufficient mechanical strength and flexibility to the users [13][14][15][16]. Notably, these mentioned examples of X-ray shielding materials are lead-free, which is presently sought-after in materials, as they could substantially reduce the risks to users from exposure to highly toxic lead (Pb) elements and compounds that are common protective fillers used for the manufacturing of X-ray and gamma shielding materials due to their economical accessibility and excellent attenuation capability [17,18].…”

Preparation of Lead-Free X-Ray Shielding Materials Based on Natural Rubber/Barium Sulfate Composites

“…However, lead is considered a hazardous chemical [6]. Recently, the radiation shielding materials with the addition of fillers such as tungsten oxide (W 2 O 3 ) [7][8], bismuth oxide (Bi 2 O 3 ) [8][9][10], and barium sulfate (BaSO 4 ) [7,[11][12] were studied for replacement of lead (Pb). Among these materials, BaSO 4 is an exciting filler since it is environmentally friendly, safe, and highly effective in X-ray attenuation [12].…”

“…Recently, the radiation shielding materials with the addition of fillers such as tungsten oxide (W 2 O 3 ) [7][8], bismuth oxide (Bi 2 O 3 ) [8][9][10], and barium sulfate (BaSO 4 ) [7,[11][12] were studied for replacement of lead (Pb). Among these materials, BaSO 4 is an exciting filler since it is environmentally friendly, safe, and highly effective in X-ray attenuation [12]. Previous investigations reported that it could be improved the radiation shielding properties of concrete [13] and it is also found that a shielding film prepared from BaSO4 and polymeric silicon has higher tensile strength and X-ray shielding performance [7].…”

“…Previous investigations reported that it could be improved the radiation shielding properties of concrete [13] and it is also found that a shielding film prepared from BaSO4 and polymeric silicon has higher tensile strength and X-ray shielding performance [7]. In addition, a polymeric composition consisting of ethylene propylene diene monomer (EPDM), industrial oil (IO), and alkyl phenol-formaldehyde resin (PF) with the addition of BaSO 4 can be applied to manufactured material for protection from radiation in offices of radiation therapy and diagnostics [12].…”

Track Model with Nonlinear Elastic Characteristic of the Rubber Rail Pad

“…Usually, the rail pads are made of rubber, ethylene propylene diene monomer (EPDM), thermoplastic polyester elastomer (TPE), high-density polyethylene (HDPE), and ethylene-vinyl acetate (EVA), as presented in Figure 2 [7,8]. Such materials are well known in industry and these are extensively studied from many view points to solve various practical issues [9][10][11][12][13][14].…”