1.1 Polymerisation and molecular architecture
Listed in Table 1.1 are a representative selection of commercially available rubbers. The
commercial rubbers are those confined within the cost-performance window and there
are other rubbers which may be synthesised, if needs arise. Some rubbers are used to
perform mechanical functions only and others are used because of additional special
features. Such features may be the outdoor- and chemical-stability, oil resistance and
high temperature stability.
Within each rubber there are many variations, i.e., commercial grades, which are finetuned
for specific applications. Because each grade of rubber has its own processing
characteristics, those who handle them need to know the properties of the rubbers that
they use.
Even for those who purchase rubbers for processing, some knowledge of their manufacture
is helpful. For those who are in the marketing of rubbers, relationships between
manufacturing conditions and processability must be understood for technical as well as
economic reasons. Even though the description of the manufacturing of rubbers is outside
of the scope of this book, some highlights need to be given. This will be done with
selected group of rubbers. For further information on this topic, readers are referred to
encyclopaedia [1] and review [2].
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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