Influence of Formulation and Process on the Structure of Maleic Anhydride Grafted NR Prepared by Melt Grafting Method

The influence of formula variables and process parameters on the grafting ratio and grafting efficiency of maleic anhydride grafted NR(NR-g-MAH)by melt grafting method was investigated.The results showed that the grafting ratio of NR-g-MAH was improved significantly by adding1,2-PB.The optimized formulation and process were as follows:the addition level of MAH was 5phr,1,2-PB was 6phr,initiator DCP was 0.2phr,reaction temperature was 135 ℃,rotor speed was 50r·min-1 and reaction time was 4min.