Abrasion resistance: The resistance to abrasive
wear.
Acid Resistant: Resistance to the action of acids.
Aging: Exposing materials to an environment for a
period of time.
Butyl: Synthetic rubber exhibiting very low
permeability to gases. Copolymer of isobutylene and isoprene.
Durometer: An instrument for calculating the
hardness of vulcanized rubber.
Elasticity: The property to return to its original
shape after deformation.
Elastomer: A term used to describe elastic polymers
having rubber-like behavior.
Elongation: Extension which is produced by a
tensile stress.
Expanded Rubber: Cellular rubber made from a solid
rubber compound and having closed cells.
Extrusion: The process under which pressure is
forced through the opening of a die in order to obtain a desired cross
sectional shape.
Hardness (durometer): It is a property of rubber
stocks which is difficult to define except by considering the methods
used to determine it.
Heat resistance: The ability of rubber to retain
its properties even under the destructive influence of heat.
Hypalon: A synthetic rubber that is completely
resistant to ozone attack under the most extreme conditions and also
possesses excellent color stability including the action of acids,
bases, and many other chemicals.
Low temperature flexibility: This is the
temperature at which the rubber becomes too stiff to function in its
usual manner.
Natural Rubber: Rubber obtained from latex of the
rubber tree.
Neoprene: A polymer of chloroprene and is prepared
from coal, salt and limestone. Neoprene is a synthetic rubber used in
weather-resistant products, adhesives, shoe soles, sportswear, paints,
and rocket fuels.
Nitrile rubber: A copolymer of butadiene and
acrylinitrile.
Oxidation resistance: The ability of rubber to
withstand the reaction of atmospheric oxygen.
Oil Resistant: Ability of a vulcanized rubber to
withstand the swelling and deteriorating effects of various type of
oils.
Plasticisers: Liquids which are used to soften
rubber.
Polymer: It is a general term used to describe all
rubbers and plastics.
Resilience: Capability of a material to return to
its original size and shape even after after deformation.
Rubber: A material that displays elastic properties
that allow recovery from large deformations quickly and forcibly.
SBR: Styrene Butadiene Rubber. Copolymer of
Butadiene. An all-purpose type synthetic similar to natural rubber.
Silicone rubber: A type of synthetic rubber
containing silicone.
Synthetic rubber: Man-made rubber
Temperature Range: It is the range in which it
shows the lowest temperature at which rubber remains flexible and the
highest temperature at which it will function.
Tensile strength: The tensile strength of a rubber
compound is the resistance of the rubber to rupture under tension.
Vulcanization: An process in which a rubber
compound through a change in its chemical structure becomes less plastic
and more resistant to swelling by organic liquids and elastic properties
are conferred, improved, or extended over a wider range of temperature.
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