Tianjin Petrochemical develops three modified polycarbonate products

The 260,000-ton/year polycarbonate plant of Zhongsha (Tianjin) will be put into operation this year. In order to increase the added value of the plant’s products and enhance competitiveness after two years of unremitting research, Tianjin Petrochemical has successfully developed polycarbonate/ Three mainstream modified series products of acrylonitrile butadiene styrene alloy, halogen-free flame-retardant polycarbonate, and glass fiber reinforced polycarbonate are accumulating efforts to actively build a high-end new material technology research and development base for Sinopec.

Polycarbonate has excellent comprehensive properties. It is a rigid and tough engineering plastic with a light transmittance of up to 90%. It is known as a transparent metal. It is often used to replace copper or other non-ferrous metals. It is widely used in electronics, Automobile industry, machinery, optics, medicine and other fields. Polycarbonate has excellent comprehensive properties, but has defects such as poor processing performance, easy stress cracking, high notch sensitivity, and poor wear resistance. It is necessary to modify polycarbonate in different directions to broaden its application fields.

At present, the domestic polycarbonate market is in a saturated state. The 260,000 tons/year polycarbonate plant of Zhongsha (Tianjin) will be put into operation in 2021. If it wants to stand out in the market, it must be deployed in advance to carry out polycarbonate modification research and extend the industry. Chain to improve the core competitiveness of the device. To this end, Tianjin Petrochemical quickly formed a research and development team from scratch, and the research and development work of polycarbonate modification was undertaken by the materials room of the research institute.

The R&D team has actively promoted the research on polycarbonate modification according to market demand against well-known companies such as SABIC. They quickly rebuilt the polycarbonate modification laboratory, installed three extrusion lines, and opened up the procurement process of polycarbonate raw materials and related additives.

In the research and development process, they strengthened cooperation with Sichuan University, Beijing Institute of Technology and Shanghai Institute, from the selection of additives, the continuous improvement of processing technology, to the balance of main performance, especially to achieve high flow and high toughness in one grade. Two contradictory performance indicators, the R&D team has adjusted the formula countless times and devoted a lot of effort. After professional and authoritative testing by manufacturers, the three most-selling modified materials in the market have finally been completed-high-flow and high-toughness polycarbonate/ Formulation experiment and processing technology research of acrylonitrile butadiene styrene alloy, halogen-free flame-retardant polycarbonate, glass fiber reinforced polycarbonate, and successfully produced small-scale trial products, which initially formed Tianjin Petrochemical’s own polycarbonate modification technology.

The modified polycarbonate series products developed by Tianjin Petrochemical have the characteristics of green and high-end, which are favored by the market. The device has not been put into production, and many downstream companies have expressed their expectation for cooperation.

The newly developed polycarbonate/acrylonitrile butadiene styrene alloy can improve the processability and notch sensitivity of polycarbonate, and has both excellent processing fluidity and high toughness. It is mainly used in auto parts, communications, home appliances, etc. field.

The flame retardant level of unmodified polycarbonate is UL94 V2, which can no longer meet the flame retardant requirements of the communications, electronic appliances, and automotive industries, and flame retardant modification is required. With the improvement of national environmental protection standards, the addition of halogen-containing flame retardants in the modification process is gradually restricted. The halogen-free flame-retardant polycarbonate developed by Tianjin Petrochemical not only does not add halogen, but its flame-retardant level has reached UL94 V0.

The glass fiber reinforced polycarbonate, through the addition of glass fiber to improve the strength, rigidity, wear resistance, thermal stability, etc., can be used as high-quality raw materials for electronic and electrical parts, auto parts, power tool housings, sports equipment and other supplies.

At the same time, Tianjin Petrochemical is stepping up research and development of polycarbonate/polybutylene terephthalate alloy. As the automotive lightweight requirements and the electronic and electrical industry have stricter and stricter material grade requirements, the market demand for this alloy will increase. exuberant.