Is the transparency of the plastic candle cup good?
As transparent PC plastic candle cup, the first to ensure high transparency, followed by strength, impact resistance, wear resistance, heat resistance, chemical resistance is good, water absorption to small.Only in this way can the transparency requirements be met in use. For the selection of transparent plastic, PC plastic is the ideal choice.However, due to its high price and difficult injection molding process, PMMA is often used, while PPE is mostly used in packaging and containers because it needs to be stretched to obtain good mechanical properties.PC plastic viscosity, high melting temperature, poor liquidity, must be injection molding at a higher temperature (between 270~320℃), relatively narrow range of material temperature regulation, technology than PMMA.
The advantages of "PC plastic candle cup" material are: 1.2. High transparency and free dyeing;3. Low shrinkage of forming and good dimensional stability;4. Good fatigue resistance;5. Good weather resistance;6. Excellent electrical characteristics;7. Odourless and odorless are harmless to human health and safety.
A. Mechanical properties: high strength, fatigue resistance, stable size and small creep (there is little change under high temperature);B. Heat-resistant aging property: the enhanced UL temperature index reaches 120~140℃ (outdoor long-term aging property is also good);C. Solvent resistance: no stress cracking;D. Water stability: it is easy to decompose when exposed to water at high temperature (it should be used with caution under high temperature and high humidity);E, electrical performance: 1, insulation performance: good (humidity, high temperature can also maintain electrical performance stability, is the ideal material for manufacturing electronic, electrical parts);2. Dielectric coefficient: 3.0-3.2;3. Arc resistance: 120s;F, forming machinability: general equipment injection or extrusion.Is the plastic candle cup PC material performance.
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