Radiation Processing and Characterization of Some Ethylene-propylene-diene terpolymer /Butyl (Halobutyl) Rubber/Nanosilica Composites

Polymers

Gabriela Craciun¹  Elena Manaila¹  Maria Daniela Stelescu²  Laurentia Alexandrescu²  Maria Sonmez²  Nicusor Fifere³  Anton Airinei³  Florica Doroftei³  Daniela Pamfil³  Adrian Bele³  Cristian-Dragos Varganici³ 

[1] National Institute for Lasers, Plasma and Radiation Research, 409 Atomistilor Street, 077125 Magurele, Romania;National Research and Development Institute for Textile and Leather, Leather and Footwear Institute, 93 Ion Minulescu Street, 031215 Bucharest, Romania;Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania;

关键词: EPDM;    electron beam irradiation;    nanosilica;    crosslinking;    mechanical properties;    contact angle;   

DOI  :  10.3390/polym12102431

来源: DOAJ

【 摘 要 】

Composites based on ethylene–propylene–diene terpolymer (EPDM), butyl/halobutyl rubber and nanosilica were prepared by melt mixing and subjected to different doses of electron beam irradiation. The effect of irradiation dose on the mechanical properties, morphology, glass transition temperature, thermal stability and water uptake was investigated. The efficiency of the crosslinking by electron beam irradiation was analyzed by Charlesby–Pinner parameter evaluation and crosslink density measurements. The scanning electron microscopy data showed a good dispersion of nanosilica in the rubber matrix. An improvement in hardness and 100% modulus was revealed by increasing irradiation dose up to 150 kGy. The interaction between polymer matrix and nanosilica was analyzed using the Kraus equation. Additionally, these results indicated that the mechanical properties, surface characteristics, and water uptake were dependent on crosslink characteristics.

【 授权许可】

Unknown