Difference:
1, the role of different
abs is the salient point of the surface can be plating, vacuum coating, printing, painting and painting,
pc is the best impact plastic varieties, the disadvantage is that the products are easy to crack, fatigue strength is low
2, the material is different
PC belongs to the engineering plastics, the price is high, but with the Transparent high impact high temperature resistance and high dimensional accuracy, but also has molding difficulties and internal stress weaknesses. Mainly used in home appliances and lighting industry.
ABS belongs to the general plastic, with easy molding and post-processing characteristics. Mainly used for shell products.
3, the advantages of different
PC transparency, it has excellent overall performance, high mechanical strength, good toughness, good heat and weather resistance, high dimensional stability, easy coloring, low water absorption.
ABS has high mechanical strength and good "tough, tough, steel" comprehensive performance.ABS is easy to absorb moisture, low shrinkage (0.60%), dimensional stability, easy to mold processing, widely used.
Expanded Information:
ABC plastic properties specific details. p>ABC plastic performance specific details:
1, material properties
Good overall performance, high impact strength, chemical stability, good electrical properties;
Good fusion bonding with 372 plexiglass, made of two-color plastic parts, and the surface can be chrome-plated, paint spraying treatment;
have a high-impact, high-heat-resistant, flame-retardant, reinforced, transparent levels;
Highly impact, high heat-resistant, flame retardant, reinforced, transparent levels;
Transparency and other levels;
Transparency and other levels.
Mobility than HIPS is a little worse than PMMA, PC, etc., good flexibility;
Suitable for the production of general mechanical parts, wear parts, transmission parts and telecommunications parts.
2, molding properties
Amorphous material, medium mobility, moisture absorption, must be fully dry, the surface requires glossy plastic parts shall be a long time to preheat and dry 80-90 degrees, 3 hours;
It is desirable to take a high material temperature, high mold temperature, but the material is easy to decomposition of the material temperature is too high (decomposition temperature of >270 ℃). For higher precision plastic parts, mold temperature should be taken 50-60 ℃, for high gloss, heat-resistant plastic parts, mold temperature should be taken 60-80 ℃;
If you need to solve the pinch water lines, you need to improve the fluidity of the material, to take a high material temperature, high mold temperature, or to change the water level and other methods;
If the molding of heat-resistant or flame retardant materials, the surface of the mold will be residual plastic decomposition of the mold surface after the production of 3-7 days, resulting in the mold surface shiny, you need to adjust the mold surface. The surface of the mold is shiny, the mold needs to be cleaned in time, and at the same time the surface of the mold needs to increase the exhaust position.
References:
Baidu Encyclopedia - Polycarbonate