5G related required membrane materials: electromagnetic shielding film, LCP film, pifilm, PEN film

Beijing time 2019-07-29 news, China Touch Screen Network News, 5G commercial, which membrane materials will drive the rise? As we all know, in 2019, as the 5G commercial year, its fifth generation wireless network and technology, compared with the fourth generation (4G) network in terms of data transmission speed, capacity and data transmission delay, etc, there is a big leap. The realization of the 5G era can not leave the upgrade of the internal materials of the mobile phone and the upgrading of various materials and parts.
The lower mask chain will introduce 5G related membrane materials.
◤ Electromagnetic shielding film
With the arrival of the next 5G era, signal crosstalk will become the core of communication to be solved, and the market's demand for electromagnetic shielding will also increase significantly, the market size of electromagnetic shielding film located in upstream raw materials will also continue to expand. Usually, manufacturers will press the covering film and electromagnetic shielding film on the FPC in turn, which has also become an important solution to the electromagnetic shielding problem.
It is understood that the electromagnetic shielding film is an electromagnetic shielding material, which is mainly used in FPC (flexible printed circuit board) and related components and is an important raw material for FPC, it has broad application space in the field of electromagnetic shielding and wave absorption. The electromagnetic shielding film needs to have the characteristics of high shielding efficiency, thin thickness, light weight, bending resistance, high peeling strength and low grounding resistance.
At present, there are Fang Bang electronics and Le Kai new materials producing electromagnetic shielding films in China, while foreign companies such as tuosuda and Dongyang Kemei.
Lekai Xincai announced on May 24 that its subsidiary won the right to use state-owned construction land and agreed to invest in the construction of Lekai Xincai electronic materials research and development and industrial base project in Chengmei Petrochemical Park, the project content is to build a research and development and production base for electromagnetic wave shielding film and other products. The total investment of the project plan is 0.5 billion yuan, and the construction period is 36 months. After the project is built, the output value is expected to be 0.4 billion yuan/year.
On June 20, Fangbang electronic science and technology innovation board prospectus was reviewed and approved. According to the prospectus, the raised funds were 1.084 billion yuan. Among them, 0.15 billion yuan is used for the construction of shielding film production base. The company's global market share in the field of electromagnetic shielding film in 2018 was about 19.60%.
◤ LCP film
In the 5G era, the requirements for materials have become higher, the higher electromagnetic wave transmission speed and the smaller signal transmission loss, which means that the permittivity and permittivity loss of the application materials should be as small as possible, LCP is the material that meets these demanding requirements.
In the 5G mobile phone FPC antenna material supply chain, the high-frequency IPTV material in the terminal device antenna is a Pre-5G transition technology, which cannot completely replace LCP. The LCP soft board will be the future trend of 5g mw high-frequency materials.
However, the technical threshold of LCP-FPC is very high, the industrial chain is highly concentrated, and the most difficult is the upstream LCP membrane material and film making process. At present, enterprises that can make LCP films in batches include Kelele, Murata, Denka and KGK.
On October 15 last year, there were media reports that coreley plans to achieve large-scale mass production of liquid crystal polymer (LCP) film production lines for flexible printed circuit boards (FPC) for high-speed transmission in 2020. Coreley's LCP film Vecsta has low transmission loss characteristics and can be used as the main basic material for wireless terminals and communication equipment in the 5G era when high-speed transmission becomes full-scale.
Big Tree split line
In addition, domestic enterprises have also tried to break through the technical bottleneck and produce LCP films.
It is understood that at the end of 2017, Ningbo Jujia new materials began to aim at the research and development of 5G mobile phone antenna LCP substrate.
At present, Jujia has successfully prepared LCP film samples, and is negotiating with foreign well-known two-way stretch film equipment suppliers to build a million square meters of LCP film production line. The company said that after completing the installation of the Test line this year, the scale of the annual output of millions of square meters of LCP film will be formed next year, and the product promotion will begin. By 2021, the production capacity will double again.
◤ Pi mo
With the advent of the 5G era, the PI soft board has been unable to meet the needs of consumers, and at this time Dawn has entered everyone's line of sight.
Although IPTV is not like LCP in terms of transmission loss, dimensional stability and bending, its efficiency can also be improved by improving the fluoride formula, and its cost is only 70% of LCP.
A few days ago, it was also revealed that the LCP soft board originally planned to be used by the new Apple iPhone will be replaced by gOS.
At present, DuPont, Da Mai, Kaneka, SKC Konlon, ruihuatai and Taihong are the manufacturers involved in the production of films in China.
It is understood that in March this year, Taihong now produces heterogeneous PI (OMI) and LCP (liquid crystal material) in the field of high-frequency soft boards and high-frequency materials, of which Dawn has completed the amount of prenatal preparation, however, it has yet to pass the US client authentication.
In addition, Dongli Co., Ltd. released a message on May 30 saying that they have developed a PI (polyimides) material suitable for 5G communication, which can be widely used for high-speed stable communication technology that delivers a large amount of data, as well as the milliwave radar electronic components for automatic operation. This material combines the heat resistance, mechanical properties and adhesion characteristics of PI and the low-loss properties required for high-speed communication to better improve the performance of high-frequency components used for these construction.
◤ PEN film
PEN film is mainly used for insulating film, seat sensor, etc. In recent years, its application in flexible printed circuit board (FPC) of lithium battery has also made progress, and since PEN does not carbonize even if it burns, it can also prevent secondary damage by short circuit.
It is understood that the emperor replaced the polyimides (PI) film with PEN film in 5g fpc applications, and they will continue to develop its application in chemical resistance and gas resistance, and expand the scope of application of strategic material PEN.