Thereafter, the mixture was mixed with masticated NR on a two-roll mill (LRM150; Labtech engineering Co., Ltd., Samutprakarn, Thailand) at 80 C for 10 min.
Thereafter, the mixture was mixedwith masticated NR on a two-roll mill (LRM150; Labtechengineering Co., Ltd., Samutprakarn, Thailand) at 80 C for10 min.