Diffusion Characteristics of Toluene into Natural Rubber/Linear Low Density Polyethylene Blends

Table 1

Compounding recipe of rubber (parts per 100 parts of rubber by weight).

Ingredients	75/25 NR/LLDPE	60/40 NR/LLDPE	50/50 NR/LLDPE
NR/LLDPE	100	100	100
Zinc oxide	5	5	5
Stearic acid	2	2	2
Carbon black
(330 HAF)	55	55	55
Wax	4	4	4
MBT	0.5	0.5	0.5
TMTD	1	1	1
Sulphur	3	3	3

MBT: mercaptobenzoyl thiazole;
TMTD: tetramethylthiuram disulphide.