Properties and Applications of Nylon Material for Plastic Fuel Tanks

The fuel barrier PA6 material is developed for the fuel tanks of vehicles and equipment using small engines. Compared with traditional PA6, the fuel barrier performance and impact performance of the fuel barrier PA6 material have been significantly improved. The fuel tank made of fuel barrier PA6 material can meet the recently released and implemented<1.5g/m2 * d volatilization standard by the US Environmental Protection Agency (EPA) and California Air Resources Board (CARB), as well as domestic fuel tank emission standards. Compared with traditional fluorinated HDPE fuel tanks, fuel barrier PA6 fuel tanks do not cause environmental pollution and overcome the disadvantages of complex multi-layer fuel tank forming technology and high equipment investment. Its overall system cost is lower.

For a long time, the domestic market for fuel barrier PA6 materials was monopolized by foreign chemical companies, and there was no corresponding technology and materials available domestically, resulting in expensive prices, unstable supply, and a situation where foreign companies dominated the market.  

After years of research and verification, Chongqing Kejufu New Materials Co., Ltd. has obtained the preparation technology of fuel barrier PA6 material with independent intellectual property rights, breaking the foreign monopoly. The material has been applied in portable engine fuel tanks, and the fuel barrier performance of the fuel tank meets the standard requirements, thus changing the market competition pattern, reducing material prices, and enhancing the market competitiveness of domestic enterprises.

Table: Performance of main grades of fuel barrier PA6 products from Kejufu Company