Assessment of modified rice husk powder/ethylene propylene diene monomer (EPDM) nanocomposites for biomedical applications

Abstract

The nanocomposite of nano rice husk powder (nRHP)–ethylene propylene diene monomer (EPDM) was prepared from modified nRHP and EPDM with different formulations containing 0–100 parts of modified nRHP per 100 parts of EPDM using curing process and laboratory size two roll mill. The surface of nRHP was modified by grafting MA‐g‐EPDM copolymer on its surface to enhance the compatibility between nRHP and EPDM. MA‐g‐EPDM copolymer was successfully prepared by melt method. The effect of filler (nRHP) loading on the mechanical and morphological properties of the modified nRHP–EPDM nanocomposites was investigated compared to the unmodified nRHP–EPDM nanocomposites (blank). Successive study was carried out on the nRHP–EPDM nanocomposites by means of human gingival fibroblast (HGF) as a fine source of human cell lines to test the cytotoxicity of the prepared nanocomposites by using 3‐(4,5‐dimethylthiazol‐2‐yl)‐2, 5‐diphenyltetrazolium bromide (MTT). The in vitro study indicated that the prepared nanocomposites were non‐toxic for HGF and could be developed for future medical uses. POLYM. COMPOS., 39:E500–E507, 2018. © 2017 Society of Plastics Engineers

Effects of desilication pretreatment on rice husk/high‐density polyethylene bio‐composites

“…[1][2][3][4] Therefore, in recent years, the agroforestry residues have been used as substitutes for wood fibers to reduce the consumption of wood and alleviate the shortage of raw materials with respect to forest products. [5][6][7] Among the agroforestry residues, rice husk (RH) is agricultural byproducts that account for 20%-25% of the paddy with an abundant yield. [8,9] According to the statistics released by the US Department of Agriculture, the global rice production became 495.9 million tons in 2019-2020, indicating the production of a considerable amount of RH residues every year.…”

Influence of ionic liquid on graphite/silver nanoparticles dispersion and antibacterial properties against Escherichia coli of PP/EPDM composite coatings

“…Rubber, silicone, flexible polyvinyl chloride, and thermoplastic elastomers are widely used in the healthcare industry to create a safer and more efficient medical environment because of their high flexibility, as well as excellent mechanical, thermal, and chemical properties. A variety of healthcare applications such as gaskets, seals, tubing, and other medical equipment and devices involve the use of thermoplastic elastomers . Thermoplastic elastomeric materials (TPEs) are polymer blends with two‐phase structure that combine both thermoplastic and elastomeric properties.…”

“…A variety of healthcare applications such as gaskets, seals, tubing, and other medical equipment and devices involve the use of thermoplastic elastomers. 1 Thermoplastic elastomeric materials (TPEs) are polymer blends with two-phase structure that combine both thermoplastic and elastomeric properties. TPE nanocomposites combine excellent mechanical, thermal, and chemical properties, which have made them very attractive in a wide range of applications such as in aeronautics and automotive industries as well as in many health-related applications.…”