JSZK Electronic Materials Technology Group's "600-ton-per-year high-performance PI film / polyimide film project" was formally trial-produced, and the first batch of products will be supplied to the market in the third quarter of this year.
The company announced on February 27, 2018 that the company would invest 857 million in the construction of a high-performance PI (polyimide) film R & D center and production line.
The company stated that the project will be constructed in two phases, the first phase of the construction period is 26 months, and the second phase of the construction period is 18 months. After all construction is completed, a high-performance polyimide (PI) film series with an annual output of 600 tons will be formed. Product capacity.
The product produced by this project is a high-performance polyimide film, which is an excellent insulating film. It can maintain the excellent mechanical and electrical properties while controlling the coefficient of thermal expansion below 20ppm / ℃ and the thermal shrinkage rate below 0.02. %, Can be firmly adhered to copper foil. And in order to match the new technology development requirements of narrow line width and narrow pitch in the flexible line substrate industry, the company has also developed thin PI films with a thickness of less than 10 μm by upgrading and transforming the film-making process technology.
The company stated that they have introduced two internationally advanced chemical imidization PI film production lines, independently developed resin formulations, mainly producing microelectronic PI films and PI films for high-frequency and high-speed transmission.
At the same time, the company hired 973 national scientists in the field of polyimide as consultants for new product development and senior experts from foreign counterparts as industrial engineering technical consultants. It has successfully developed high-end PI films for flexible circuit boards and PI films for 5G high-frequency and high-speed communications. , Flexible display CPI film and other high-performance PI film formula and industrial production process.
As early as 2016, JSZT Electronic Materials established a high-performance polyimide film R & D center in Beijing to conduct basic formula technology research on various products such as electrical insulation films, electronic cover films, and electronic packaging substrate films. Has applied for 10 invention patents.
According to statistics from China Electronic Materials Industry Association, as of 2016, there were more than 30 PI film manufacturers of varying sizes in China, with a total production capacity of more than 8,000 tons. More than 80% of the products are electrical grade polyimide films, and the rest are electronics industries With cover films, reinforced films, etc., high-performance electronic grade PI films and high-end electrical grade PI films have not formed large-scale production capabilities.
The production of electronic-grade PI films has filled the gap in domestic high-performance electronic-grade PI films.
At present, only a few foreign companies such as DuPont in the United States, Ube in Japan, Zhongyuan Chemical in Japan, and SKC in South Korea have the ability to produce high-performance PI films on a large scale. China's high-performance PI film market has long been monopolized by the United States, Japan, and South Korea.
Ube Kosan
Japan's Ube Industrial Co., Ltd. successfully developed a new type of linear polyimide in the early 1980s, including UpilexR, UpilexS and UpilexC series films.
Ube Industries' independently developed PI film, UpilexR, with a capacity of 1 million square meters per year (80 tons / year) was put into production in 1983, and a model UpilexS was added in 1985.
Compared with Kapton, UpilexS has high heat resistance, better dimensional stability and low moisture absorption.
KANEKA CORPORATION
As early as 1980, Kaneka Chemical began researching polyimide films in the laboratory and successfully developed a new type of "homobenzene" type PI film, with the trade name "Apical". It was established in Shiga, Japan in 1984. APICAL polyimide film production line, and began mass production in 1985, the products are mainly used in FPCS.
On May 8th, according to Japanese media reports, Japan's Zhongyuan Chemical Co., Ltd. developed a transparent polyimide (PI) film suitable for the use of the cover window of flexible OLED displays. It is understood that this new product combines the Japanese molecular technology of PI molecular design and optical thin film formation technology, with repeated bending, transparency, surface hardness, surface smoothness and other characteristics, which can be applied to OLED displays.
SKC
SKC started the research and development of polyimide film in 2001; participated in the government's polyimide research and development project with KRICT (Korea Research Chemical Technology Institute) in 2002; installed and commissioned PI film 0 # production line in 2004 and successfully mass-produced, Became the first manufacturer of imine film in Korean history.
Dupont
The company began research on high-temperature polymers in the United States from 1950. In 1962, aromatic polyimide began trial production in Buffalo, named "H" film. In 1965, a large-scale production was started in Sekelvini, Ohio, and registered as Kapton.
Through technical improvements, DuPont introduced three improved Kapton films in 1984, namely HN, FN, and VN.