Toray launches transparent polyphenylene sulfide film for 5G antennas

Toray Industries has developed a new film that can be used for 5G communications
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According to reports, the film has very good transparency, heat resistance, flame retardancy and dielectric properties
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It can be used in transparent 5G antennas, transparent flexible printed circuit boards, transparent heater substrate materials and other electronic components
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In addition, they will include construction materials that benefit from film clarity and flame retardancy, as well as process release films that require chemical and thermal resistance to ensure inspection and positioning visibility
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The company has begun to provide samples to user companies, and will continue to advance research and development to accelerate commercialization
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5G technology provides ultra-fast communication for broadband cellular networks, but because it uses high-frequency radio waves over short distances, it requires a large number of antennas—various types of transparent antennas that can be installed in different locations, easy to spot, and of great design
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Existing transparent circuit boards usually use polyethylene terephthalate film and transparent polyimide film, and circuit boards made of these materials are light in weight and less fragile
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However, their dielectric loss tangents are high, resulting in large signal losses in 5G communications
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Developed by Toray for 5G circuit boards, Torelina has heat resistance, flame retardancy, electrical insulation, and low dielectric loss tangent that is consistently low under different temperature and humidity conditions
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Torelina is a unique biaxially oriented polyphenylene sulfide film
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The film was opaque with a typical heat resistant polymer yellow tint
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This is because tiny voids inside the film scatter light and cause low transparency
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Therefore, Toray has combined its polymer design and proprietary particle dispersion technology to eliminate these voids
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It reduces yellow tint and increases film clarity without compromising performance benefits
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The haze of this highly transparent polyphenylene sulfide film is comparable to polyethylene terephthalate film
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Toray's new film for transparent 5G antennas helps stabilize 5G communications by reducing signal loss under varying temperature and humidity conditions, and improving visibility and design
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