PC products

Formula:(C15H16O2.CH2O3)x   Molecular Weight:2.8×10⁴ 

also known as PC plastic; is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic,aromatic, aliphatic-aromatic, etc. type. Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics.Only aromatic polycarbonate has been produced industrially. Due to the special structure of polycarbonate, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics.Polycarbonate is a strong thermoplastic resin that gets its name from its internal-O-C(=O)-O- group. It can be synthesized from bisphenol A and carbonyl chloride (COCl2).The method most used now is the melt transesterification method (bisphenol A and diphenyl carbonate are synthesized by transesterification and polycondensation reaction).

Bisphenol A and diphenyl carbonate reaction principle:

Packing: 25kg small package or 750kg ton bag.

Storage: no open fire is allowed in the storage area, the temperature should be avoided to reach 250 ° C or above. Keep in the shade.

The Main Advantage：

1. Mechanical properties: high strength and modulus of elasticity, high impact strength, good

fatigue resistance, good dimensional stability, small creep (very little change under high

temperature conditions), high transparency and free dyeability;

2. Heat aging resistance: the temperature range is wide, and the enhanced UL temperature

index reaches 120~140°C (the outdoor long-term aging resistance is also very good);

3. Solvent resistance: no stress cracking;
4. Stability to water: It is easy to decompose when it encounters water at high temperature

(use caution in high temperature and high humidity environment);

5. Insulation performance: excellent (it can maintain stable electrical properties even in

humidity and high temperature, it is an ideal material for manufacturing electronic and

electrical parts);

6. Dielectric coefficient: 3.0-3.2;
7. Arc resistance: 120s;
8. Molding processability: common equipment injection molding or extrusion molding.

 Application of Polycarbonate (PC)
In terms of optical lighting, it is used to manufacture large lampshades, protective glass, left and right eyepiece tubes of optical instruments, etc. It can also be widely used as transparent materials on aircraft.In terms of electronic appliances, it is used to manufacture insulating connectors, coil frames,tube holders,insulating sleeves, telephone casings and parts, battery casings for miner's lamps, etc.It can also be used to make parts with high dimensional accuracy, such as communication equipment such as CDs, telephones, electronic computers, video recorders, telephone switches, and signal relays. Polycarbonate film is also widely used as capacitors, insulating leather bags, audio tapes, color video tapes, etc.In terms of mechanical equipment, it is used to manufacture various gears, racks, worm gears,worms, bearings, cams, bolts, levers, crankshafts, ratchets, and can also be used as parts such as housings, covers, and frames of mechanical equipment.In terms of medical equipment, it can be used as cups, cylinders, bottles for medical purposes,dental instruments, drug containers and surgical instruments, and can even be used as artificial organs such as artificial kidneys and artificial lungs.In other respects, it is used as hollow-reinforced double-wall panels, greenhouse glass, etc. in construction; it is used as textile bobbins, textile machine bearing bushes, etc.in the textile industry; it is used as milk bottles, tableware, toys, models, LED lamp casings,and mobile phone casings for daily use. .