Introduction to the characteristics and basic knowledge of ABS plastic
Introduction to the characteristics and basic knowledge of ABS plastic
ABS plastic
Chemical name: acrylonitrile-butadiene - styrene copolymer
Acrylonitrile Butadiene Styrene
Weight: 1.05 gram/cubic centimeter forming shrinkage: 0.4-0.7%
Mold temperature: 200-240 ℃ drying conditions: 80-90 ℃ for 2 hours
Features:
1. Good comprehensive performance, high impact strength, chemical stability, good electrical performance.
2. The welding property of organic glass with 372 is good, and it is made into two color plastic parts, and can be coated with chromium and spray paint.
3. High resistance, high heat resistance, flame retardant, enhanced, transparent, etc.
4. More liquid than HIPS, better than PMMA, PC, etc., flexible and flexible.
USES: suitable for making general mechanical parts, wear abrasion resistant parts, transmission parts and telecom parts.
Molding characteristics:
1. Amorphous material, medium of fluidity, moisture absorption, must be fully dry, the surface of the plastic parts that require luster to be long preheating dry 80-90 degrees, 3 hours.
2. YiQu high temperature, temperature anti-embrittlement, but the temperature is too high to decomposition temperature (> 270 degree) of high precision plastic parts, die temperature YiQu 50 to 60 degrees, the high gloss. Heat resistant plastic parts, die temperature YiQu 60-80 degrees.
3. If you need to solve the clamping of water, you need to improve the fluidity of the material, high temperature, high mold temperature, or change into water level.
Levels 4, such as forming heat or flame retardant material, the production of 3 to 7 days after the mold surface residual plastic decomposition, cause mould surface bright, clear in a timely manner to die, and die surface to increase exhaust location.
ABS resin is the largest and most widely used polymer. It combines the various properties of PS, SAN and BS organically. It has the excellent mechanical properties of toughness, hard and just phase equilibria. ABS is the ternary copolymer of acrylonitrile, butadiene and styrene, A stands for acrylonitrile, B represents butadiene, and S stands for styrene.
ABS engineering plastics is not transparent, the pale ivory color appearance, non-toxic, tasteless, the characteristics of both tough, hard, just slow combustion, flame yellow, have black smoke, plastic softening after burning, burning, issued a special cinnamon smell, but no molten dripping phenomenon.
ABS engineering plastics with excellent comprehensive performance, has excellent impact strength, good dimensional stability, chemical resistance, excellent electrical performance, wear resistance, dyeing, processing and machining is better. ABS resin is resistant to water, inorganic salts, alkali and acids, insoluble in most alcohols and hydrocarbon solvents, and readily soluble in aldehydes, ketones, esters and certain chlorinated hydrocarbons.
The disadvantages of ABS engineering plastics: the thermal deformation temperature is low, combustible, and the weatherability is poor.
