izvorni znanstveni rad
Rubber is a material without which today’s world would be unthinkable. The basic component for obtaining rubber is caoutchouc, which can be natural and synthetic. Before vulcanisation rubber is mixed with additives according to exactly defined recipe, which ensures certain properties of the finished product. A vulcanising agent is necessary for vulcanisation, usually sulphur, and it takes place over several hours at increased temperatures. The task of rubber is to connect all the ingredients together and to define the basic mechanical properties of the rubber product, such as elasticity and strength. Rubber can be recycled, and most often car pneumatics are recycled. The recycling product is wire, fabric and rubber powder. 5 – 10% polyurethane adhesive is added to the powder as binder, for better properties of the products made of recycled rubber. The problem arises in the selection of processing parameters of such regenerate without the addition of rubber. The paper has analyzed the selection of the processing parameters and mechanical properties were tested on the finished product in order to establish the difference in the moulding with and without binder.
Compression moulding; mechanical properties; pneumatic tyre; processing parameters; recycling
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