Five notices of ABS plastics in performance testing
General properties: from the appearance of ABS plastic raw materials it is mainly an opaque ivory colored pellets, non-toxic, tasteless, low water absorption properties can make its products into a variety of colors, and with 90% Above the high gloss. ABS with good bonding with other materials, easy surface printing, coating and coating treatment. The abs plastic has an oxygen index of 18.2. It is a flammable polymer whose flame is yellow and smokes, scorched but does not drip and gives off a special cinnamon flavor when it burns . ABS is a very good overall performance of resin products, in a wide temperature range have a good impact strength and surface hardness, heat distortion temperature than PA, pvc much higher, in terms of its size and stability is also more it is good.
Mechanical properties: ABS has excellent mechanical properties, its impact strength is good, can be used in a variety of cold scenes at lower temperatures. Even though ABS products are damaged by external forces, they may only be tensile and not damaged by impact. Abrasion resistance of ABS is better than that of other plastics. Its dimensional stability is excellent, and it has good oil resistance. It can be used for medium load and speed bearing. ABS creep than PSF and PC, but smaller than the PA and POM. ABS bending strength and compressive strength of the plastic is poor. ABS mechanical properties by the temperature greater impact.
Thermal properties: ABS plastic is an amorphous polymer, and no significant melting point; high melt viscosity, poor liquidity, weatherability is poor, ultraviolet light can make color; heat distortion temperature of 70-107 ℃ (85 or so) After annealing products can also be increased by about 10 ℃. Temperature and shear rate are more sensitive; ABS at -40 ℃ can still show some toughness, -40 ℃ to 85 ℃ in the temperature range of long-term use.
Electrical properties: ABS electrical insulation and excellent performance and almost no temperature, humidity and frequency of the impact of size, can be used in most environments.
Environmental performance: ABS plastic will not be affected by water, inorganic salts, alkaline alcohols and hydrocarbon solvents and a variety of acids, but can be dissolved in ketones, aldehydes and chlorinated hydrocarbons, by the glacial acetic acid, vegetable oil and other erosion will gradually The occurrence of stress cracking phenomenon occurs