| The carbon black/NR compound was prepared by latex agglomeration under pressure,and the microstructure,thermal stability,curing characteristics and physical properties of the compound were investigated.The results showed that,the dispersion of the carbon black with high pressure homogenizer was better,the settling amount was small,and storage stability was good;the carbon black was dispersed stably in NR latex.Compared with that of pure NR and carbon black/NR without agglomeration process,the Mooney viscosity of agglomeration modified carbon black/NR compound was higher, the dispersion was better,and thermal stability was improved.Compared with those of carbon black/NR vulcanizate prepared by traditional mechanical blending method,the modulus,tensile strength and tear strength of agglomeration modified carbon black/NR vulcanizate were increased. |
