ISO 6721-9:2019 塑料 动态机械性能的测定 第9部分：拉力振动 声脉冲传播法

标准编号：ISO 6721-9:2019

中文名称：塑料 动态机械性能的测定 第9部分：拉力振动 声脉冲传播法

英文名称：Plastics — Determination of dynamic mechanical properties — Part 9: Tensile vibration — Sonic-pulse propagation method

发布日期：2019-04

标准范围

该文献描述了一种脉冲传播方法，用于在通常在3kHz至10kHz范围内的离散频率下测定聚合物的复拉伸模量E'的储能分量。该方法适用于在约10kHz下测量储能模量在0.01 GPa至200GPa范围内且损耗因子低于0.1的材料。对于具有较高损耗的材料，通过振幅衰减引入速度测量中的显著误差。该方法允许在薄膜或细纤维和长样品上进行测量，通常是300mm × 5mm × 0.1 mm的带或300mm × 0.1 mm(直径)的纤维。这种方法可能不适用于泡沫塑料、复合塑料和多层产品。

This document describes a pulse propagation method for determining the storage component of the complex tensile modulus E' of polymers at discrete frequencies typically in the range 3 kHz to 10 kHz. The method is suitable for measuring materials with storage moduli in the range 0,01 GPa to 200 GPa and with loss factors below 0,1 at around 10 kHz. With materials having a higher loss, significant errors in velocity measurement are introduced through decay of amplitude.The method allows measurements to be made on thin films or fine fibres and long specimens, typically tapes of 300 mm × 5 mm × 0,1 mm or fibres of 300 mm × 0,1 mm (diameter).This method may not be suitable for cellular plastics, composite plastics and multilayer products.

标准预览图