NATURAL RUBBER COMPOSITION FOR SILICA MASTER BATCH COMPRISING NATURAL RUBBER, SILICA, SILANE COUPLING AGENT, POLYETHYLENE GLYCOL AND N-CAPRIC ACID, PREPARATION METHOD THEREOF, AND RUBBER COMPOSITION FOR TIRE CONTAINING THE COMPOSITION

摘要

Purpose: it provides for the tire containing ingredient for a silica masterbatch, a natural rubber composition of its preparation method and a kind of rubber composition, improves the processing performance of dispersibility and silica. Construction: natural rubber composition includes 100 components by a natural rubber weight; 20-50 components are by silica weight; 1-5 components are by a silane coupling agent weight; 2-3 components are by polyethylene glycol weight; 1-5 components are by N- capric acid weight. The method comprising the steps of: one natural rubber of mixing and injection silica and a silane coupling agent are to natural rubber; The injection polyethylene glycol and N- capric acid of the mixture of acquisition; It heats and blend mixture is by starting in 100 deg.C to 160 deg.C.A temperature a temperature