ABS plastic due to a better overall performance, impact performance and very prominent, and therefore is used in large quantities instead of metal materials, widely used in home appliances, electronic appliances, office equipment, automobiles, machinery and other fields.
In the use of polymer materials, due to heat, oxygen, water, light, microorganisms, chemical media and other environmental factors, the chemical composition and structure of polymer materials will undergo a series of changes. So it can only be maintained for about 10 years.
Physical properties will also deteriorate accordingly, such as hardening, sticking, brittleness, discoloration, loss of strength, etc. These changes and phenomena are known as aging, and the essence of polymer material aging is the change of its physical or chemical structure.
1, home appliances Household appliances are the largest and most promising application areas for ABS plastics, including the shells and internal components of televisions, recorders, washing machines, refrigerators, telephones, air-conditioners and so on.
2, automotive ABS plastics used in the manufacture of automotive interior components are instrument panels, instrument housings, door liners, controller boxes, regulator handles, switch knobs, conduits and so on. The main use of ABS impact resistance, strength, rigidity and molding characteristics. Exterior parts include fenders, armrests, ventilation covers, brackets, buffer expansion plates, etc.
3, mechanical ABS plastic can be used to manufacture mechanical equipment shell and general mechanical parts. Such as water tank shells, instrument boxes, motor shells, battery tanks, gear bearings, pump impeller mold model, bolts, covers and fasteners.
4, office equipment ABS has excellent impact resistance, good rigidity. Dimensional stability and molding, used to manufacture a variety of office equipment shell economical and practical. Such as fax machines, copiers, typewriters and computer monitors. Office equipment for fire protection requirements are high, so usually are selected flame retardant ABS grade manufacturing.
5, mold model Due to the superior machining performance of ABS plastic, light weight, low price, in recent years has been widely used to produce electronic home appliance industry, automotive, machinery and equipment, testing equipment mold model.
The world's most advanced rapid prototyping machine Dimension uses ABS as a standard raw material to manufacture three-dimensional prototypes, so you can test the appearance of new products as you wish the shape of the degree of appropriateness and the relevant functions. It offers the best price/performance ratio in its class.
Plastic ABS performance testing should be noted
(1) general performance:
ABS appearance for the opaque ivory-colored granules, non-toxic, odorless, low water absorption rate of its products can be painted into a variety of colors, and has a high gloss of 90%.
ABS and other materials with a good combination of easy surface printing, coating and plating, ABS oxygen index of 18.2, is a flammable polymer, the flame was yellow, there is black smoke, burning but not dripping, and issued a special cinnamon flavor.
ABS is a comprehensive performance is very good resin, in a relatively wide range of temperatures with high impact strength and surface hardness, heat distortion temperature is higher than PA, PVC, good dimensional stability.
The fluidity of ABS melt is better than that of PVC and PC, but worse than that of PE, PA and PS, and similar to that of POM and HIPS.
The flow characteristics of ABS are non-Newtonian fluid, and the viscosity of its melt is related to the processing temperature and the shear rate, but it is more sensitive to the shear rate.
(2) mechanical properties
ABS has excellent mechanical properties, its impact strength is good, can be used at very low temperatures. Even if the ABS products are destroyed, it can only be tensile damage and not impact damage.ABS has excellent abrasion resistance, good dimensional stability, and oil resistance, can be used for medium load and speed of the bearing.
ABS creep than PSF and PC, but smaller than PA and POM.ABS bending strength and compression strength of the poorer plastics.ABS mechanical properties are affected by temperature.
(3) thermal properties
ABS belongs to the amorphous polymer, no obvious melting point; melt viscosity is high, poor fluidity, poor weather resistance, ultraviolet rays can make the discoloration; heat distortion temperature of 70-107 ° C (85 or so), the products can be annealed to increase the annealing treatment of about 10 ° C. The temperature, shear rate are relatively high. Temperature, shear rate are more sensitive; ABS in -40 ℃ can still show some toughness, can be in -40 ℃ to 85 ℃ temperature range for long-term use.
(4) Electrical Properties
ABS has good electrical insulation, and is almost independent of temperature, humidity and frequency, can be used in most environments.
(5) environmental performance
ABS is not affected by water, inorganic salts, alkali alcohols and hydrocarbon solvents and a variety of acids, but can be dissolved in ketones, aldehydes and chlorinated hydrocarbons, by glacial acetic acid, vegetable oils and other erosion will produce stress cracking.
Performance testing is the simulation of a variety of normal, peak, and abnormal load conditions through automated testing tools to test the various performance indicators of the system.
Reference: Sohu.com - What is ABS plastic and are toys made of ABS safe?
Reference: Baidu Encyclopedia - Epoxy Resin
Reference: Baidu Encyclopedia - ABS Plastic