Study on modification of nanosilica by polydimethylsiloxane used to increase the mechanical and environmental strength of electromagnetic transparent coating

  • Xuân Thạo Phạm Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Đức Hà Ninh Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Minh Trí Lê Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Như Hoàn Phạm Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Trần Thiêm Đặng Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Minh Tuấn Phạm Institute of Chemistry and Materials, Academy of Military Science and Technology
Keywords: Transparent electromagnetic; Polydimethylsiloxane; Anti-corrosion; Nanosilica.

Abstract

Electromagnetic transparent coating is used to protect radars, and electromagnetic wave transceivers, coating has both a protective effect, and good environmental resistance, and also allows electromagnetic waves to pass through the coating and ensures the protection of electromagnetic waves. stable working of the radar. Enhancing the weather protection and environmental resistance of radars and electromagnetic wave transceivers, especially in marine and island climates, requires a transparent electromagnetic coating to meet durability. By modifying nano-silica with PDMS by sol-gel method and adding it to an electromagnetic transparent paint system, it was found that with a content of 2% compared to the mass of the film-forming agent, the mechanical and mechanical strength of the paint film was increased up to 200 kG.cm and environmental durability up to 60 salt-blind cycles, while the electromagnetic transparency of the paint film remains unchanged, reaching an average of over 99%.

điểm /   đánh giá
Published
2023-06-25
Issue
Vol. 88 (2023)
Section
Overview