Ageing Phenomena in Polymers: A Short Survey

Ageing Phenomena in Polymers: A Short Survey
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聚合物的老化现象:简短的调查

DOI:
10.1002/9783527803743.ch2_01
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发表时间:
2018
期刊:
Adhesive Joints
影响因子:
--
通讯作者:
A. Lion
A. Lion
中科院分区:
--
文献类型:
--
作者:
A. Herzig;M. Johlitz ;A. Lion

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聚合物在今天的工业发展中已经变得非常重要。本章回顾了聚合物中一系列重要的老化现象,始终牢记工程应用的后果。对于聚合物来说,有不同的方法可以细分“老化”的定义。老化按触发源分为内在老化和外在老化。聚合物的氧化是一种多过程现象,因为它受到扩散等物理现象以及影响大分子结构的化学反应的影响。本章提供了一个汇编不同的方法,促进实验调查的老化行为的聚合物。它还提供了一个简短的调查方面的变化引起的老化效应的聚合物的性能。对聚合物部件的寿命或老化性能的估计应始终非常谨慎地进行,并以全面的实验研究为基础。
Polymers have become enormously important in today's industrial development. This chapter reviews a series of important ageing phenomena in polymers, always keeping the consequence on engineering applications in mind. There are different ways to subdivide the definition of ‘ageing’ in the case of polymers. Ageing was distinguished by the source of the trigger into intrinsic ageing and extrinsic ageing. Oxidation of polymers is a multi‐process phenomenon since it is affected by physical phenomena such as diffusion as well as by chemical reactions affecting the macromolecular structure. The chapter provides a compilation of different methods that facilitate the experimental investigation of the ageing behaviour of polymers. It also provides a brief survey with respect to the changing properties of polymers provoked by ageing effects. The estimation of the lifetime or the aging properties of polymer components should always be carried out with great care and on the basis of comprehensive experimental investigations.
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