For many years, PC has been the national key to encourage the development of new polymer engineering plastics, but also the industry's large amount of engineering plastics variety. At the same time, due to reliable quality, reusable and easy to recycle, it also fully meets the requirements of the circular economy advocated by the state and the industry, and is a kind of engineering plastics with excellent sustainability.

polycarbonate in the 5G radome application introduction

According to the recollections of Zheng Kai, President of China Synthetic Resin Supply and Marketing Association and Chairman of the Polycarbonate Branch, in the 1980s, China had no polycarbonate production plant. It once imported 50,000 tons of polycarbonate from Teijin of Japan, which was the largest single import of polycarbonate in China at that time. After more than 30 years of rapid development, China has now become the world's largest producer of polycarbonate, with a total production capacity of 1.205 million tons in 2018. How should the industry develop in the future? Chinese society has gradually moved from industrial society to ecological society, no longer need to race against time, how to reflect the high-quality development of the industry? It is not the faster the better, but the healthier the better. When there are finished eggs under the nest, vicious competition is no good!"" Zhengkai appeals.

Source: Asiacchem Consulting ""China Polycarbonate Technology and Market Annual Report 2020""

China Synthetic Resin Supply and Marketing Association Polycarbonate Branch deputy Secretary General, Wanhua Chemical New materials Division Shanghai Center director Zhang Lei pointed out that Because the polycarbonate industry has the characteristics of high production concentration, high production technical barriers, high dependence on raw material supply, broad application fields, etc., the contradiction between supply and demand in the Chinese market has been prominent for many years, and the degree of external dependence is high. With the breakthrough of technology and the enhancement of the strength of Chinese enterprises, in recent years, the polycarbonate industry has ushered in new development opportunities, and China's new production capacity continues to increase. Although the current self-sufficiency rate of China's polycarbonate production capacity is only about 50%, but the industry is in the concentrated release period of production capacity, the average annual growth rate of production capacity will reach 30% in the next few years, is expected to rapidly develop into a situation of oversupply in 3 to 4 years.

What is more alarming is that during the same period all over the country there are more than several times the market demand of the proposed production capacity in the planning or will start construction one after another. In the next few years, the total capacity of existing, under construction and proposed to be built will exceed 7 million tons.

source: and the consultation ""China polycarbonate technology and market annual report 2020""

zhang lei pointed out that the capacity of the explosive growth brings multiple severe challenges, industry profitability. At present, the mainstream of polycarbonate market application is bisphenol A polycarbonate, and its cost effectiveness is directly reflected in the price difference between bisphenol A and polycarbonate two products. Although the various companies in the process technology, raw material sources and other aspects of the different, the cost is not the same, but it is usually believed that the difference between polycarbonate and bisphenol A reached 5000 ~ 6000 yuan (ton price, the same below) above, polycarbonate device can basically maintain a certain level of profit.

In the years before the first half of 2018, polycarbonate has maintained a certain profit level in most of the period, and even has a huge profit space in a certain period of time. However, after entering the second half of 2018, the price of polycarbonate fell sharply, and the difference between polycarbonate and bisphenol A narrowed rapidly, once even reaching 4000 yuan or less, and the industry suffered a general loss.

Unlike the price of bisphenol A is affected by the upstream raw material price and the relationship between supply and demand, the price of polycarbonate is more affected by the relationship between supply and demand. With the rapid release of China's polycarbonate production capacity in the next few years, the market as A whole will have a long-term oversupply situation, the plant operating rate will decline significantly, the difference between polycarbonate and bisphenol A or will remain low for a long time, the overall profitability of the industry is worrying.

Zhang Lei also pointed out that unlike general plastics, polycarbonate synthesis steps, long process, through the expansion of production capacity brought about by the comprehensive cost reduction is very limited.