Five Considerations for Performance Testing of ABS Plastic

General Performance: From the appearance of ABS plastic material, it is mainly an opaque, ivory-colored pellet. Its characteristics include non-toxicity, odorlessness, and low water absorption, allowing its products to be molded into various colors and achieve a high gloss of over 90%. ABS has good compatibility with other materials and is easy to surface print, coat, and plate. The oxygen index of ABS plastic is 18.2. It is a flammable polymer that produces a yellow flame and black smoke when ignited. It burns without dripping and emits a distinctive cinnamon-like odor. ABS is a resin product with excellent overall performance. It has good impact strength and surface hardness over a wide temperature range. Its heat deformation temperature is much higher than that of PA and PVC. It also exhibits good dimensional stability.

Mechanical Performance: ABS exhibits excellent mechanical properties. It has good impact strength and can be applied in various cold environments at low temperatures. Even when ABS products are subjected to external forces and are damaged, it is more likely to experience tensile failure rather than impact failure. ABS has better wear resistance compared to other plastics. It also demonstrates excellent dimensional stability and good oil resistance, making it suitable for bearings under medium loads and speeds. ABS has a higher creep resistance than PSF and PC, but lower than PA and POM. The bending strength and compressive strength of ABS are relatively poor among plastics. The mechanical performance of ABS is significantly influenced by temperature.

Thermal Performance: ABS plastic is an amorphous polymer and does not have a distinct melting point. It has a higher molten viscosity and poor flowability. ABS also exhibits lower weather resistance and can undergo discoloration when exposed to ultraviolet light. The heat deformation temperature of ABS is typically between 70-107°C (around 85°C), and annealing treatment can increase it by approximately 10°C. ABS is sensitive to temperature and shear rate. It still maintains a certain level of toughness at -40°C and can be used for long periods within the temperature range of -40°C to 85°C.

Electrical Performance: ABS exhibits excellent electrical insulation performance and is minimally affected by temperature, humidity, and frequency. It can be used in most environments without significant impact on its electrical properties.

Environmental Performance: ABS plastic is not affected by water, inorganic salts, alkalis, alcohols, and various acids. However, it can be dissolved by ketones, aldehydes, and chlorinated hydrocarbons. Prolonged exposure to substances such as acetic acid and vegetable oil can lead to stress cracking in ABS, causing it to gradually develop cracks.

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