
【化】 distortion temperature
【化】 thermal collapse
temperature
【化】 temperature
【医】 T; temperature
热变形温度(Heat Deflection Temperature, HDT)是衡量材料(尤其是高分子材料或塑料)在受热和负荷共同作用下抗变形能力的重要参数,其核心定义与特性如下:
热变形温度指在一定外部负荷作用下,材料以规定速率升温,当形变量达到预设标准值(如0.25mm)时的温度。它反映的是材料的短期耐热性能,而非材料失效或熔化的温度。
总结来说,热变形温度是工程材料耐热性评估的关键指标,但其测试和应用需严格遵循标准条件,并结合其他性能参数综合分析。
热变形温度是指在一定的压力下,塑料在加热过程中仍然保持一定的强度和塑性,所能承受的最高温度。
The heat deflection temperature (HDT) is the temperature at which a polymer or plastic sample deforms under a specified load.
/hiːt dɪˈflɛkʃn ˈtɛmp(ə)rətjʊə/
The HDT can be used to determine the temperature at which a plastic material becomes too soft to be used for its intended application.
When designing products for use in high temperature environments, it is important to consider the heat deflection temperature of the plastic material.
在设计用于高温环境的产品时,需要考虑塑料材料的热变形温度。
Heat distortion temperature, thermal distortion temperature
热扭曲温度
Glass transition temperature
玻璃化转变温度
The term "heat deflection temperature" is commonly used in the plastics engineering industry, and is frequently encountered in technical reports, product specifications, and academic literature.
“heat deflection temperature”是塑料工程行业常用术语,经常出现在技术报告、产品规格和学术文献中。
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