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ABOUT US


About ChinaDigital

Yantai Metastar Special Paper Co., LTD. (referred to as "Metastar") was established in 2009, specializing in the R&D, production and sales of aramid paper and its derivative products. In April 2023, it was listed on the Beijing Stock Exchange, with the stock code "833394".

The company has deeply cultivated In the field of aramid paper for more than ten years, mastered the core technology of aramid paper preparation, established a R&D and production system with independent intellectual property rights. The company is a national manufacturing individual champion enterprise, a national specialized and special "little giant" enterprise, and a national high-tech enterprise.The "metastar" products produced by the company have the four characteristics of "safe, reliable, green and friendly", and are widely used in the important fields such as electric power, aerospace, railway, new energy, electronic communication and so on.

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Metastar
2009

The company was founded in

Metastar
3000 tons

Annual output of aramid paper

metastar YT592/YT593/YT594 type aramid cardboard

YT592/YT593/YT594 aramid paperboard is a type of low,medium,and high-density aramid paperboard,which is made of 100%aramid fiber and has excellent heat resistance,chemical stability,electrical and mechanical strength,as well as good saturation.It has a certain degree of rigidity and processing adaptability,and has good performance in both air and oil.Typical applications include molded parts such as V-rings,corner rings,as well as external insulation of transformers,gap gaskets,and rolled sleeves.

metastar YT518/YT568 aramid mica paper

The YT518 and YT568 products are calendered aramid paper containing 50%mica particles.It has excellent thermal stability and electrical strength,which can prevent premature failure under harsh working conditions such as partial discharge,extreme high temperature,and electrical stress,including medium and high voltage designs.It can help improve voltage resistance and fire resistance performance.YT518 aramid mica paper can be used alone,and YT568 aramid mica paper can be composited with thin films.

Aramid crepe paper , Aramid crepe paper tubes

Metastar aramid crepe paper includes various sizes and thicknesses, which can be used for wrapping wire or for processing Crepe paper tubes.

Metastar YT836 Para aramid paper

The heat resistance and thermal stability of the Para aramid paper YT836 are better than meta aramid paper, and its mechanical strength is higher. It can be used in certain fields with special requirements, such as the substrate of high-frequency circuit boards, lithium battery separators, etc. The honeycomb made of para aramid paper has better specific strength and specific stiffness.Therefore, it can be used for large rigid and secondary load-bearing structural components of aircraft, trains, ships, etc.

Metastar YT822 Meta aramid paper

Industrial grade honeycomb material is made of meta aramid paper YT822 ,which has high mechanical strength, good heat resistance, good stiffness, and is easy to combine with resin. After being made into honeycomb, it can be widely used in the rail transit fields, such as structural components and interior materials of trains and ships. such as platforms, flat roof panels, wall panels, floors, luggage racks and ceilings.

Metastar YT822A Meta Aramid Paper

The paper of YT822A for aviation grade honeycomb application has excellent mechanical properties,higher tensile strength and tear resistance,and low deformation.The honeycomb made by the paper has a light unit weight(50%lighter than aluminum honeycomb),high specific strength and stiffness(about 9 times that of steel),and can significantly reduce the weight of structural components while ensuring sufficient strength;It has good flame retardancy,does not produce molten droplets,and does not release toxic smoke;It has excellent temperature resistance and can maintain good dimensional stability within the temperature range of-80℃to 200℃,without causing internal tension damage caused by strong thermal expansion and contraction of metal materials,and has strong structural safety guarantee ability;The performance of resistanceɑ、βand X-ray radiation is excellent,During flights and in space environments with strong radiation,its radiation stability is more suitable for making honeycomb materials for aviation and aerospace.The dielectric constant is small,the loss factor is low,and the honeycomb made has high transmittance.It has good adhesion with resin and is conducive to make adjustment during the impregnation process,to produce honeycomb materials with different densities;

Metastar YT511 meta aramid paper

Uncalendered meta aramid paper YT511 has low density, strong impregnation and saturation ability, and good resin curing effect. It is suitable for turn and layer insulation of epoxy casting, and is used in places requiring high thickness and adaptability such as motor phase insulation and transformer coil end insulation. It can also be used as auxiliary insulation such as paper insulation and terminal strip insulation on the side of small transformers, and insulation of outgoing lines of dry-type transformers.

Metastar YT56 Meta aramid paper

The semi-calendered meta aramid paper YT56 has the density of 0.65-0.74g/cc, and its performance indicators are between the two models YT510 and YT511. Therefore, using YT56 aramid paper in situations where mechanical and electrical strength requirements are not very high can effectively reduce costs. YT56 aramid paper is used for interlayer insulation of transformers, Phase insulation of hand wound motors, and electrical insulation and thermal barriers of some electrical equipment and instruments.

Company news

Always adhere to the principle of quality for development and quality for survival, and continuously improve products and services

Industry news

Sincerely welcome colleagues and friends from all walks of life to visit and guide

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Blog

Disclosure of environmental impact assessment information on composite materials for motors of new energy vehicles with an annual output of 1,500 tons

In accordance with the “Environmental Impact Assessment Law of the People's Republic of China”

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Aramid paper was selected as an urgently needed material for advanced rail transit

In order to accelerate the development of the new materials industry, the three ministries and commissions of the National Development and Reform Commission, the Ministry of Finance, and the Ministry of Industry and Information Technology recently jointly issued the "Implementation Plan for the Upgrading and Upgrading of Key Materials".

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Blog

Minshida was awarded a carbon fiber paper invention patent

Recently, the invention technology of Yantai Minshida Special Paper Co., Ltd. “An electric heating high temperature resistant carbon fiber paper and its preparation method” was authorized by the Patent Office of the State Intellectual Property Office (Patent number: ZL201310428212.5).This patent right is very innovative and practical, and will become another important core technology of the company.


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