塑料.压缩性能的测定

[中文适用范围]： 本国际标准规定了在规定条件下测定塑料压缩性能的方法。 定义了标准测试样本，但可以调整其长度以防止负载下的屈曲影响结果。 包括一系列测试速度。 该方法用于研究测试样本的压缩行为，并确定在定义的条件下的压缩强度、压缩模量以及压缩应力/应变关系的其他方面。 该方法适用于以下范围的材料： ——刚性和半刚性！1] 热塑性模制和挤出材料，除了未填充类型外，还包括用短纤维、小棒、板或颗粒等填充和增强的化合物；刚性和半刚性热塑性片材； ——刚性和半刚性热固性成型材料，包括填充和增强化合物；刚性和半刚性热固性片材； ——热致液晶聚合物。 与 IS010350-1 和 IS010350-2 一致，本国际标准适用于加工前纤维长度≤7.5 mm 的纤维增强复合材料。 该方法通常不适用于纺织纤维增强材料（参见参考文献[2]和[5]）、纤维增强塑料复合材料和层压材料（参见[5]）、刚性多孔材料（参见[3]）或含有多孔材料或橡胶的夹层结构（参见[4]）。 该方法使用的样本可以模制为选定的尺寸，可以从标准多用途测试样本的中心部分（参见 ISO 3167）加工而成，也可以从成品或半成品（例如模制品或挤压或铸造片材）加工而成。 该方法规定了测试样本的优选尺寸。 对不同尺寸的样品或在不同条件下制备的样品进行的测试可能会产生不可比较的结果。 其他因素，例如测试速度和样品的条件，也会影响结果。 因此，当需要可比数据时，必须仔细控制和记录这些因素。 [外文原描述]： This International Standard specifies a method for determining the compressive properties of plastics under defined conditions. A standard test specimen is defined but its length may be adjusted to prevent buckling under load from affecting the results. A range of test speeds is included. The method is used to investigate the compressive behaviour of the test specimens and for determining the compressive strength, compressive modulus and other aspects of the compressive stress/strain relationship under the conditions defined. The method applies to the following range of materials:  rigid and semi-rigid [1] thermoplastic moulding and extrusion materials, including compounds filled and reinforced by e.g. short fibres, small rods, plates or granules in addition to unfilled types; rigid and semi-rigid thermoplastic sheet;  rigid and semi-rigid thermoset moulding materials, including filled and reinforced compounds; rigid and semirigid thermoset sheet;  thermotropic liquid-crystal polymers. In agreement with ISO 10350-1 and ISO 10350-2, this International Standard applies to fibre-reinforced compounds with fibre lengths u 7,5 mm prior to processing. The method is not normally suitable for use with materials reinforced by textile fibres (see references [2] and [5]), fibre-reinforced plastic composites and laminates (see [5]), rigid cellular materials (see [3]) or sandwich structures containing cellular material or rubber (see [4]). The method is performed using specimens which may be moulded to the chosen dimensions, machined from the central portion of a standard multipurpose test specimen (see ISO 3167) or machined from finished or semifinished products such as mouldings or extruded or cast sheet. The method specifies preferred dimensions for the test specimen. Tests which are carried out on specimens of different dimensions, or on specimens which are prepared under different conditions, may produce results which are not comparable. Other factors, such as the test speed and the conditioning of the specimens, can also influence the results. Consequently, when comparable data are required, these factors must be carefully controlled and recorded.