Material rubber sealing profiles

China air with special rubber sealing profiles used by the rubber material of nitrile rubber prior to the widespread use of silicone rubber, fluorosilicone rubber , rubber material functional direction.
Currently China Airlines with special rubber sealing profiles used in various types of sealing profiles to neoprene and nitrile rubber and the most widely used . And rubber , while having good strength and excellent oil resistance , but its impatience sunlight , machined rubber profiles in flight conditions often occur after a period of time cracking phenomenon , profiles the life and the use of safety are compromised .
Europe and other countries, new types of aircraft designed multi- use silicone rubber as its aviation special rubber coloured cable ties profiles of the main material . Silicone rubber temperature field performance, while also superior resistance to weather aging properties of nitrile rubber and other materials , but its strength is low , but do not have the fire-retardant requirements. Silicone rubber sealing profiles to improve strength and wear resistance , the use of the compound used more and fabric materials .
Most aircraft parts are resistant to burning requirements, silicone rubber material with the added need to make the processing of various types of flame retardant sealing profiles to achieve resistance to combustion requirements. Flame retardants are widely used in the past , aluminum hydroxide, decabromodiphenyl ether , aluminum hydroxide as an aftereffect flame retardant, requires a large amount of filler in order to achieve better flame-retardant effect , would seriously undermine the filling material mechanical properties. DecaBDE as halogen-containing flame retardant effect of the fine , but its release toxic gases when burned difficult to meet the environmental requirements of the aviation industry now .
In order to meet the requirements , the domestic enterprises to use composite materials to improve flame retardant silicone rubber profiles , through the use of new and efficient platinum -based flame retardant to achieve efficient and environmentally friendly flame retardant dual requirements . According to the literature reports, foreign countries have developed a new reactive flame retardant, can pass with minimal amount of combustion flame retardant chemical reactions to achieve results.
For aviation development, new aviation with special rubber tamper seal profiles even require electromagnetic shielding , high-temperature resistant , thermal conductivity , anti- erosion and other special requirements .