Background:
Rubber vulcanization is a consolidated chemical process to enhance the mechanical
properties of the polymeric material by sulfur crosslinking of the polymer chains, such as
rubber. Vulcanization Activators are important rubber processing additives that activate sulfur cure
and improve the efficiency of sulfur-based cure systems. The most common activator is zinc fatty acid
ester that is often formed in-situ by the reaction of fatty acid with zinc oxide. Although zinc is one of
the less harmful heavy metals, according to European Council Directive 2004/73/EC, the reduction of
zinc level in the environment has become an important task because of its toxic effect on aquatic organisms.
:
The current study reviews the research achievements in the field of reducing the consumption of micronutrients
of ZnO particles based on the use of nanoparticles instead of them in the polymer industry.
Among the proposed methods, due to the less environmental effects of magnesium oxide, the use
of MgO nanoparticles instead of zinc oxide has also achieved good results.
Objective:
The aim of this paper is considering suggested different methods on the reduction of using
ZnO particles in related industries, the use of ZnO nanoparticles has had better results than its particles.
In addition, due to the less environmental effects of magnesium oxide, magnesium oxide nanoparticles
can be used instead of micronutrients of zinc oxide. Overall, the results of various investigations
show that reducing the diameter of the zinc oxide particles reduces the amount required for curing
the rubber and thus reduces its toxic effects. Also, the use of magnesium oxide nanoparticles instead
of zinc oxide in different concentrations is investigated.
Removal of Emerging Pollutants from Water Using Environmentally Friendly Processes: Photocatalysts Preparation, Characterization, Intermediates Identification and Toxicity Assessment
