The heat distortion temperature, English Heat deflection temperature (HDT), reflects the relationship between heat and deformation of the material. Generally, a certain load is applied to a polymer material or a polymer, and the temperature is raised at a certain speed. When the predetermined deformation is reached, the temperature corresponding to the deformation becomes a heat distortion temperature, which is a method for measuring the heat resistance of a polymer or a polymer material. Generally, the short-term heat resistance of plastics is represented by heat distortion temperature. The common test methods for HDT are GB/T1634, ISO75-2 and ASTM D648. In addition, low HDT resins can be used to enhance HDT by reinforcing, filling, or blending with high HDT plastic resins. For comparison of the thermal deformation temperature of plastics, first look at the approximate range comparison. You can quickly lock your demand target through this diagram. The overall trend is that the heat distortion temperature of general plastics, engineering plastics and special engineering plastics increases in turn. (You can save the picture by phone and save the picture very clearly):

Heat distortion temperature values ​​of various plastic resins

Heat distortion temperature values ​​of various plastic resins

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