Is the plastic in the plastic tea light candle cup made of polycarbonate
Is the plastic in the plastic tea light candle cup made of polycarbonate
Polycarbonate (PC) is a kind of high molecular polymer with carbonate group in the molecular chain, which can be divided into aliphatic group, aromatic group, aliphatic group and aromatic group according to the structure of ester group.The low mechanical properties of aliphatic and aliphatic - aromatic polycarbonate limit their application in engineering plastics.Only aromatic polycarbonate has been industrially produced so far.Due to the particularity of polycarbonate structure, it has become the general engineering plastics with fast growth rate among the five engineering plastics.
As transparent PC plastic, want to ensure high transparency above all, next strength, impact resistance, abrasion resistance, heat resistance, chemical resistance is close friends, bibulous rate wants small, only so ability is in use the requirement that satisfies transparency.Material selection of transparent plastic, PC plastic is a more ideal choice, but its price is high, injection molding process is difficult, so often choose PMMA, and PPE because to get good mechanical performance through stretching, so more in packaging and containers used.
PC "plastic candle cup" material advantages are :
1, with high strength and elasticity coefficient, high impact strength, wide range of use temperature;
2. High transparency and free dyeing;
3. Low forming shrinkage rate, good dimensional stability, etc.
