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Rubber introduction

Rubber Technology and Introduction

The term “rubber” meant the material obtained from the rubber tree Hevea brasiliensis. Today, a distinction is made between crude rubbers and vulcanized rubbers, or elastomers. Elastomer is the preferred term for vulcanized rubber. Other terms that are less frequently used in clued vulcanizate and crosslinked rubber. Elastomers or rubbers are classes of materials like a wood, fibers, metals, glasses, or plastics. The annual consumption of rubber amounts more than 13 million tons. About one third of total global rubber usage is natural rubber that produced in plantations in Thailand, Malaysia, Indonesia as well as in West Africa, and South or Central America. Two thirds of the required rubber is produced synthetically by industrial countries which oil is used to raw material for producing synthetic rubber. More than half of the global production of natural and synthetic rubber is used in tires and great variety of consumer products from motor mounts, fuel hoses over window profiles and heavy conveyor belts to membranes for artificial kidneys. The property of elastomers is the elastic behavior after deformation in compression or tension. It is possible to stretch and elastomer ten times its original length and after removal of the tension it will be return to its original shape and length. Moreover elastomers are characterized by a great toughness under static or dynamic stresses, an abrasion resistance which is higher than steel, by an impermeability to air and water, by a high resistance to swelling solvents and chemicals attack. Rubbers are also capable of adhering to metals and textile fibres. By joining elastomers with metals components which combine the elasticity of elastomers with the rigidity of metals. In combination with fibres such as rayon, polyamide, polyester, glass or steelcord and depenting on the properties of the reinforcing member the tensile strength is increased considerably with and attending reduction in extendibility. This can be of great importance to designers. The properties profile which can be obtained with elastomers depends mainly on the choice of the particular rubber, the compound composition, the production process, and the shape and design of the product. Properties which do justice to elastomers can only by proper compounding with chemicals and other additives of which there are about 20000 different ones, and subsequent vulcanization. Depend on type and chemicals additives and degree of vulcanization given rubber different properties with respect to hardness, elasticity, or strength. And the typical properties of the specific rubber, namely oil, gasoline, aging resistance remain unaltered in the different valcanizates. Read the rest of this entry »

Trade names of Rubbers

Abbreviations, Chemicals and Trade Names of Rubbers


Chemical Names

Trade Names

BRCRIIR Butadiene rubbersChloroprene rubbersIsobutene-isoprene rubbers (butyl rubbers) Buna CB, BudeneNeoprene, BaypreneExxon Butyl
IR Isoprene rubbers Natsyn
NBR Synthetic Acrylonitrile-butadiene rubbers(nitrile rubbers) Perbuna, Chemigum
HNBR Hydrogenated nitrile rubbers Therban, Zetpol
NR Isoprene rubbers, natural (natural rubbers)  
SBR Styrene-butadiene rubbers Buna His, Cariflex S
ACM Polyacrylate rubbers Cyanacryl, Europrene AR
AEM Ethylene-acrylic rubbers Vamac
CSM Cholrosulfonated polyethylene rubbers Hypalon
EPDM Ethyline-propylene-diene rubbers  Keltan, Nordel
EPM Ethylene-propylene rubbers Vistalon, Dutral
FPM Fluorocarbon rubbers Viton, Fluorel
FFKM Perfluorocarbon rubbers Kalrez
VMQ Vinyl-methyl silicone rubber Siloprin
FMQ Fluorodilicone rubbers Silastic
ECO Epichlorohydrin rubbers Hydrin, Epichlomer
AU Polyester urethanes Urepan, Pellethane
EU Polyether urethanes Adiprine
YBPO Thermoplastic polyether-esters Hytrel


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