PC/ABS resin, polycarbonate and acrylonitrile butadiene styrene copolymer and mixture, is a thermoplastic plastic made of polycarbonate and polyacrylonitrile alloy, combining the excellent characteristics of the two materials, The formability of ABS materials and the mechanical properties, impact strength, temperature resistance, UV resistance and other properties of PC can be widely used in automotive internal parts, business machines, communication equipment, household appliances and lighting equipment. Injection molding process drying: drying before processing is necessary. The humidity should be less than 0.04%, and the recommended drying condition is 90~110C, 2~4h. Melting temperature: 230~300C. Mold temperature: 50~100C. Injection pressure: depending on the plastic part. Injection speed: as high as possible. Chemical and physical characteristics: PC/ABS has the comprehensive characteristics of both PC and ABS. For example, ABS is easy to process and PC has excellent mechanical properties and thermal stability. The ratio of the two will affect the thermal stability of PC/ABS materials. The PC/ABS composite also shows excellent flow characteristics. The shrinkage rate is about 0.5%. PC/ABS characteristics PC/ABS plastic raw material is a modified engineering plastic synthesized by mixing. PC is polycarbonate, and ABS is the copolymer of acrylonitrile (A), butadiene (B) and styrene (S). This kind of modified plastic has better performance than pure PC and ABS, such as improved impact resistance, heat resistance, hardness and so on. ABS plastic features: 1. Good comprehensive performance, high impact strength, chemical stability and good electrical performance 2. It has good fusion with 372 plexiglass and can be made into two-color plastic parts, and can be chrome plated and painted on the surface 3. It has high impact resistance, high heat resistance, flame retardancy, reinforcement, transparency and other levels. 4. The fluidity is a little lower than HIPS, better than PMMA, PC, etc., and the flexibility is good. 5. Excellent balance of mechanical performance 6. High impact strength at low temperature 7. Indoor ultraviolet stability 8. High thermal deformation temperature (80~125 ℃) 9. Flame resistance (UL945VB) 10. Wide range of colors 11. Easy injection and extrusion, blow molding 12. Good electroplating 13. General density between 1.05-1.20
1. New method: Wipe with ethyl acetate, ABS will not silk, HIPS will silk, but only pure. 2. Common methods: There are many ways to identify ABS and PS. As far as ABS is concerned, its surface brightness is good and its toughness is better than that of PS. After burning, there will be dense holes on the surface, with a faint sweet taste; PS can be divided into GPPS, HIPS and EPS. There are more brittle and transparent products. HIPS has average brightness, but its toughness is less than ABS. After burning, its surface is bright and has the smell of styrene. The section of HIPS is white, but GPPS is not. EPS is mainly used for foam. As for TV shell materials, there are ABS and HIPS. Generally, they should be distinguished according to the surface characteristics and physical characteristics. ABS is generally the one with good surface brightness. ABS is better than HIPS when it is broken with pliers. It has higher hardness and needs more strength. Then it can be distinguished according to the flame and taste.