Origin :
Nigeria
Color :
Yellowish Green
Nature :
Crude
详情
Natural rubber is obtained from the milky secretion (latex) of
various plants, but the only important commercial source of natural
rubber (sometimes called Par rubber) is the tree Hevea
brasiliensis. The only other plant under cultivation as a
commercial rubber source is guayule ( Parthenium argentatum ), a
shrub native to the arid regions of Mexico and the SW United
States. To soften the rubber so that compounding ingredients can be
added, the long polymer chains must be partially broken by
mastication, mechanical shearing forces applied by passing the
rubber between rollers or rotating blades. Thus, for most purposes,
the rubber is ground, dissolved in a suitable solvent, and
compounded with other ingredients, e.g., fillers and pigments such
as carbon black for strength and whiting for stiffening;
plasticizers, usually in the form of oils, waxes, or tars;
accelerators; and vulcanizing agents. The compounded rubber is
sheeted, extruded in special shapes, applied as coating or molded,
then vulcanized. Most Par rubber is exported as crude rubber and
prepared for market by rolling slabs of latex coagulated with acid
into thin sheets of crepe rubber or into heavier, firmly pressed
sheets that are usually ribbed and smoked
联系我们
联系人:Mr. Ifeanyi
公司名称:Conithe Limited
办公地址:Oti Street, Effurun Warri Delta State, Off Aka Avenue, Nigeria,