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Help CenterFood Grade PC 2856(Covestro）
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PC material is actually one of the engineering plastics we refer to. As a widely used material worldwide, PC has its own characteristics and advantages and disadvantages. PC is an amorphous thermoplastic resin with excellent comprehensive performance, including excellent electrical insulation, elongation, dimensional stability, chemical corrosion resistance, high strength, heat resistance, and cold resistance; It also has the advantages of self extinguishing, flame retardant, non-toxic, and colorable. You can see the shadow of PC plastic in every corner of your life. The characteristics of large-scale industrial production and easy processing also make its price extremely low.
Performance characteristics of PC:
1. Good transparency, with a light transmittance of 90%, making it a transparent material with better heat resistance than PMMA (140 ° C);
2. Good low temperature resistance, can be used for a long time at -100 ° C-140 ° C;
3. Outstanding impact resistance, creep resistance, and dimensional stability; Outstanding impact resistance, creep resistance, and dimensional stability;
4. Good electrical insulation at a wide temperature range (-100-140 ° C) and a wide frequency range (60-10106Hz); Good electrical insulation at a wide temperature range (100~℃) and a wide frequency range (Hz); Good electrical insulation;
5. Good processability (injection, extrusion, blowing, salivation, compression, etc.).
The water absorption rate of PC plastic raw materials is relatively high, so it must be preheated and dried before processing. Pure PC is dried at 120 ℃, while modified PC is generally dried at 110 ℃ for more than 4 hours. The drying time cannot exceed 10 hours. Generally, the air extrusion method can be used to determine whether the drying is sufficient. The proportion of recycled materials can reach 20%. In some cases, 100% recycled materials can be used, and the actual amount depends on the quality requirements of the product. Recycled materials cannot be mixed with different color masterbatch at the same time, otherwise it will seriously damage the properties of the finished product.
Food grade PC is favored by producers and buyers of food storage inventory due to its clarity and toughness. When compared to silica glass, polycarbonate fiber is as lightweight and highly resistant to breakage. Polycarbonate fibers are commonly used in disposable plastic water bottles and reusable plastic water bottles. PC bottles (containers) are transparent, lightweight, and have good impact resistance. They can withstand certain high temperatures and corrosive solution washing, and are used as recyclable bottles (containers) dishes.
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