What is the common name of polycarbonate? What is polycarbonate?

PolycarbonateIt is a colorless and transparent amorphous thermoplastic material, which is a strong and tough materialThermoplastic resins

The application and development of polycarbonate is to develop in the direction of high composite, high function, specialization and serialization, and has launched a variety of products such as optical discs, automobiles, office equipment, boxes, packaging, medicine, lighting, films and other special grades.

Polycarbonate sheet.

It has good light transmittance, impact resistance, ultraviolet radiation resistance and the dimensional stability and good molding processing performance of its products, which makes it have obvious technical performance advantages over the inorganic glass traditionally used in the construction industry.

Polycarbonate considerations

1. To increase the fluidity of the melt, it is not by increasing the injection pressure but by increasing the injection temperature.

2. The flow channel and gate of the mold are required to be short and thick to reduce the pressure loss of the fluid, and at the same time, the injection pressure should be high.

3. The resin needs to be fully dried before molding and processing to make it contain water.

Control at the following.

4. In addition, thermal insulation measures should be taken for the resin during processing to prevent re-moisture absorption.

5. Not only do you need a reasonable product design, but you should also correctly master the molding process, such as increasing the mold temperature and post-processing the product, which can reduce or eliminate the internal stress.

Adjust the process parameters in time according to the different conditions of the product.

PolycarbonateIt is a common colorless and transparent amorphous thermoplastic material.

The name polycarbonate is due to the CO3 group inside the polycarbonate. This is a new type of thermoplastic engineering plastics that has only appeared in the past 20 years, and there are many varieties, and the current output is bisphenol A-type polycarbonate, which has a structural formula.

For: The molecule was 30,000 70 years in West Germany began industrial production, abbreviated as PC.

Features of polycarbonate1. The transparency is very good, and the light transmittance of the film.

Up to 89%, second only to plexiglass, and can also be colored.

2. The oil resistance is very good, and the sample is soaked in gasoline for three months, and the weight basically does not change.

3. The water absorption is very small, and the relative humidity.

At 50%, the maximum moisture absorption is 23 degrees Celsius.

If you don't soak in water for a week, the water absorption rate is, and if you soak it in boiling water for a week, the water absorption rate is.

The above content reference: Encyclopedia - polycarbonate.

1. Polycarbonate is a polymer containing carbonate base in the molecular chain, which can be divided into aliphatic, aromatic, aliphatic and aromatic according to the structure of the ester group;

2. Polycarbonate is a strong thermoplastic resin, whose name is the CO3 group inside it, which can be synthesized from bisphenol A and carbon oxychloride;

3. Polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant grade Bi, and has good mechanical properties in the use temperature of Xiaotong;

4. Polycarbonate is an almost colorless glass glass state of indefinite Hu shaped polymer, with good optical properties, and polycarbonate high molecular weight resin has high toughness.

Polycarbonate is a strong and tough rubber hole thermoplastic resin, which is named after the CO3 group inside it. It can be synthesized from bisphenol A and carbon oxychloride (CoCl2). At present, the most commonly used method is melt transesterification method (bisphenol A and diphenyl carbonate are synthesized by transesterification and polycondensation reaction).

Polycarbonate is a linear carbonated Biga polyester in which carbonic acid groups are alternately arranged with other groups in the molecule, which can be aromatic, aliphatic, or both. Bisphenol A type PC is the most important industrial product.

Polycarbonate high molecular weight resins have high toughness, cantilever notched impact strength of 600 900 J m, and the heat deflection temperature of unfilled grades is about 130 °C, which can be increased by 10 °C after glass fiber reinforcement. Below 100°C, the creep rate under load is low. PC has poor hydrolysis resistance and cannot be used in products that have been subjected to high-pressure steam repeatedly.

Polycarbonate is an amorphous polymer that becomes transparent glassy after melting and cooling, with excellent optical and mechanical properties. It has a high melting point, low temperature resistance, low water absorption, good impact resistance, insulation and aging resistance, and can also withstand inorganic and organic dilute acids.

According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic aromatic and other types. Among them, aliphatic and aliphatic aromatic polycarbonates have low mechanical properties, which limit their application in engineering plastics.

Only aromatic polycarbonate is industrially produced. Due to the particularity of polycarbonate structure, it has become the fastest growing general engineering plastic among the five major engineering plastics.