An alternative method that is applied to use the product of oil sludge inertisation by polyethylene waste
The possibility of using the product of oil sludge inertisation by low-pressure polyethylene waste (LPPW) as a part of elastomeric compositions of non-essential purpose was investigated. The inertisation product was obtained by oil sludge mixing with crushed low-pressure polyethylene waste (LPPW) at an elevated temperature in the ratio of 5:1. The resulting product was introduced into the elastomeric composition in the amount of 5, 10 and 15 parts (mass) per 100 parts (mass) of the elastomeric composition of 1747 brand based on rubbers of SKSM-30 ARKM-15 and SKI-3 grades used for rubberizing the bottom of felted shoes. It was determined that the investigated ingredient exhibits the properties of a plasticizer, contributes to a certain decrease of the vulcanization time optimum and the vulcanization rate increase in the main period. It was determined that the use of the product of oil sludge modification by low-pressure polyethylene waste (LPPW) provides reduction of strength characteristics, obtained vulcanizates (relative load and elongation in case of a break and tear resistance) as well as hardness increase by the Shore A and elasticity. It was found that the product of oil sludge inertisation in the elastomeric composition formulation leads to a decrease of a bond strength with the metal cord. It is concluded that it is possible to recommend the use of an oil sludge modification product by low-pressure polyethylene waste (LPPW) in the formulation of elastomeric compositions of the non-essential purpose.