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Rubber

 

Abstract

Rubber is a plastic material; rubber may be spread, cemented, calendered, moulded, extruded, caulked, puttied, or wrapped into virtually any shape. Rubber can be coated with cloth, metal, plastic or forced into cracks.

Rubber is a sturdy fabric; rubber requires heavy equipment for forming and fabricating. The enormous warmness generated during the mixing, mastication, grinding, and extruding tactics have got to be dissipated and controlled. It also represents several power administration chances.

Summary

One of the unexpected uses for rubber was for coating fabric to make it waterproof. Solutions or cement of rubber in solvents are immediately spread on cloths but, unless the ingredients necessary for cure and property control are involved, the results may be entirely unsatisfactory.

Rubber composites are applied to the fabric by calendering, i.e., rolling the rubber compound into the material on multi-roll calender machines. Tire cord is a particular case in which cotton, rayon, nylon, or polyester cords are arranged in parallel and bound together by rubber on a calendar.

Dough-like rubber compounds may be formed into virtually any shape, which is then maintained by curing the mixture in the mould. A most understanding example is a tennis ball. To make a very high grade and resilient rubber compound are formed in “muffin tins” shaped as halves of the football. These are then cemented together with a pill of a gas-releasing chemical inside the construction. It is then vulcanised to form the core of a shot, to which the fabric cover and proper nap fibre are cemented.

Extrusion fashions Weatherstrip, hose, inner tubes, tire treads, gaskets, channels, and many other rubber articles. The plastic compound used may be cured during the extrusion operation or at a later time.

The vehicle tire excellent, best example. Each tire is built from fabric, wire, cord or rubber into the doughnut shape which hugs the vehicle rim.

The final product retains air for months or years, resists the heat built up by service and the attack of ozone, oils, air and chemicals, and provides tens of thousands of miles of travel over roadways and freeways of all types and all of a highly abrasive nature.

 

We take a tennis ball a complicated structure for very rugged service.

 

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