标准编号：ISO 6721-11:2012
中文名称：塑料 动态机械性能的测定 第11部分：玻璃化温度
英文名称：Plastics — Determination of dynamic mechanical properties — Part 11: Glass transition temperature
发布日期：2012-04
标准范围
This part of ISO 6721 specifies methods for determining a value of the glass transition temperature (Tg) from the dynamic mechanical properties measured during a linear temperature scan under heating conditions. The glass transition temperature is an indicator of the transition from a glassy state to a rubbery state.Usually referred to as dynamic mechanical analysis (DMA), the methods and their associated procedures can be applied to unreinforced and filled polymers, foams, rubbers, adhesives and fibre-reinforced plastics/composites. Different modes (e.g. flexure, compression, tension) of dynamic mechanical analysis can be applied, as appropriate, to the form of the source material.NOTE For tests undertaken in the flexure or torsion mode, an additional procedure is included to identify the severity of the influences of thermal lag on the measured data (see Annex B).
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