ABS plastic raw materials testing items and main uses
Click： Time：2023-12-08 11:52:10
A. ABS plastic raw material testing program
ABS plastic raw material mechanical properties: density, hardness, surface resistivity, dielectric properties, tensile properties, impact properties, tearing properties, compression properties, bond strength, abrasion resistance, low temperature performance, resilience;
ABS plastic raw materials aging properties: heat aging, ozone aging, ultraviolet aging, salt spray aging, xenon aging, carbon arc lamp aging, halogen lamp aging;
ABS plastic raw materials, liquid resistance: lubricants, gasoline, motor oil, acids, alkalis, organic solvents, water;
ABS plastic raw material combustion properties: vertical combustion, alcohol blowtorch combustion, alley propane combustion, smoke density, combustion rate, effective calorific value of combustion, total smoke release;
ABS plastic raw materials applicable performance: hydraulic resistance, pulse test, electrical conductivity, watertightness, airtightness;
ABS plastic raw material production parameters: melt index, viscosity, mold shrinkage, melt temperature, etc..
1.General Properties
ABS plastic raw material is non-toxic, odorless, the appearance of ivory translucent, or transparent particles or powder. Density is 1.05~1.18g/㎝3, shrinkage rate is 0.4%~0.9%, modulus of elasticity is 2Gpa, Poisson's ratio is 0.394, moisture absorption is <1%, melting temperature is 217~237℃, thermal decomposition temperature is >250℃.
2. Mechanical properties
ABS plastic raw materials have excellent mechanical properties, its impact strength is very good, can be used at very low temperatures; ABS plastic raw materials have excellent wear resistance, good dimensional stability, and oil resistance, can be used for medium load and low speed bearings.ABS plastic raw materials creep resistance than the PSF and PC, but smaller than PA and POM.
3. Thermal properties
ABS plastic raw materials heat distortion temperature of 93 ~ 118 ℃, products can also be increased after annealing treatment of about 10 ℃. ABS plastic raw materials in -40 ℃ can still show a certain degree of toughness, can be used in the temperature range of -40 ~ 100 ℃.
4. Electrical properties
ABS plastic raw materials of electrical insulation is good, and almost independent of temperature, humidity and frequency, can be used in most environments.
5. Environmental performance
ABS plastic raw materials are not affected by water, inorganic salts, alkalis 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.ABS plastic raw materials weathering is poor, in the role of ultraviolet light is prone to degradation; in the outdoors in half a year, the impact strength decreased by half.
II. Main uses
1.Alloy field
PC / ABS plastic material is an important engineering plastics alloy, widely used in automotive, electrical and electronic, office and communications equipment and other fields. Nowadays, in order to meet the special requirements of fire safety in the field of application (especially electronic and electrical products), the flame retardant technology of PC/ABS plastic raw material alloy has become a hotspot of people's research. However, with the progress of science and technology, the requirements of environmental friendliness of the material is more and more high, the traditional halogenated flame retardant brought about by the hazards of the increasingly obvious.
In the project, ABS plastic raw materials are widely used in engineering pipeline, in the municipal government on the material requirements of the project is relatively high, the bottom of the pool pipeline can generally be made of ABS plastic raw materials made of pipeline.
2.3D printing field
ABS plastic material is one of the main materials for 3D printing, the reason why it can become a 3D printing consumables, is the characteristics of the decision, ABS plastic material has heat resistance, impact resistance, low temperature resistance, chemical resistance and excellent electrical properties, product dimensional stability and other characteristics. At present, ABS plastic material is a stable material in 3D printing materials.
III. Preparation methods
ABS plastic raw materials production methods, can be divided into doping method, grafting method, coupling method with the use of a graft - doping method of four categories, about eleven kinds of preparation process. Today most of the emulsion method, the current promising emulsion grafting method, ABS plastic raw materials by changing the proportion of the three monomers and the use of different polymerization methods, can produce a variety of specifications of the product, the structure of the elastic main chain of graft copolymers and resin-based main chain of graft copolymers, the general range of the proportion of the three monomers roughly for the proportion of acrylonitrile 25% to 35%, butadiene 25% to 30%, and styrene 40% to 50%, and styrene 40% to 50%. and styrene 40%~50%.
