Electron beam radiation curing of natural rubber filled with silica-graphene mixture prepared by latex mixing

摘要: Abstract The mechanical properties of irradiated natural rubber (NR) composites filled with silica (SiO2) and graphene nanoplatelets (GE) mixture have not been studied sufficiently for more understanding since they are interesting composites. SiO2/GE produced by mixing method were added to NR latex mixing. products subsequently cured EB irradiation form Filler content (1, 2.5 5 phr), the proportion GE in fillers (0.008%, 0.056%, 3.23% 14.29%), dose (100, 150, 200 250 kGy) varied these results EDXS elemental mapping confirmed presence filler, while FTIR that no new functional groups occurred between SiO2 GE. Mechanical thermal investigated. Scanning electron microscope (SEM) indicated good dispersion matrix. showed could be used as a mean crosslinking improve their tensile properties. phr SiO2/0.056%GE an 150 kGy (NR/SiO2/0.056%GE-EB) highest strength, well acceptable moduli at 100, 300, 500% strain. tear strength was higher than only (NR/SiO2-EB), (NR/GE-EB) equivalent amount using same greatly strength. It found high (3.23% or higher) lowered effect curing step on also comparison one-time two-times crosslink density increased when repeating increasing kGy, which impacted negatively movement molecular chain, resulting negative Thermogravimetric analysis there small improvement stability NR/SiO2/0.056%GE-EB compared NR-EB. Moreover, degradation temperature (Td) decreased applying doses composite. Therefore, individual filler hybrid