ISO 22007-2:2008 塑料 导热率和热扩散率的测定 第2部分：瞬态平面热源（热盘）法

标准编号：ISO 22007-2:2008

中文名称：塑料 导热率和热扩散率的测定 第2部分：瞬态平面热源（热盘）法

英文名称：Plastics — Determination of thermal conductivity and thermal diffusivity — Part 2: Transient plane heat source (hot disc) method

发布日期：2008-12

标准范围

ISO 22007-2:20 08规定了一种测定塑料的热导率和热扩散率以及单位体积比热容的方法。实验装置可以设计成匹配不同的样品尺寸。可以在一定温度和压力范围内的气体和真空环境中进行测量。该方法适用于测试均质和各向同性材料，以及具有单轴结构的各向异性材料。通常，该方法适用于热导率值λ在大约0.01 Wm-1k-1<λ<500Wm-1k-1的范围内，热扩散率值α在5 × 10-8m2s-1≤α≤10-4m2s-1的范围内，以及温度T在大约50K

ISO 22007-2:2008 specifies a method for the determination of the thermal conductivity and thermal diffusivity, and hence the specific heat capacity per unit volume, of plastics. The experimental arrangement can be designed to match different specimen sizes. Measurements can be made in gaseous and vacuum environments at a range of temperatures and pressures.This method is suitable for testing homogeneous and isotropic materials, as well as anisotropic materials with a uniaxial structure. In general, the method is suitable for materials having values of thermal conductivity, λ, in the approximate range 0,01 Wm^-1K^-1 < λ < 500 Wm^-1K^-1 and values of thermal diffusivity, α, in the range 5 x 10^-8 m²s^-1 ≤ α ≤ 10^-4 m²s^-1, and for temperatures, T, in the approximate range 50 K < T < 1 000 K.The thermal-transport properties of liquids can also be determined, provided care is taken to minimize thermal convection.

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