China Plastics ›› 2021, Vol. 35 ›› Issue (1): 73-77.DOI: 10.19491/j.issn.1001-9278.2021.01.012

• Processing and Application • Previous Articles     Next Articles

Study on Oxygen Permeability of Plastic Pipes Through Manometric Method

NI Jia, DUAN Kaige(), ZHU Hui, HU Mingyuan, CHENG Zhi, YU Dongming   

  1. Polymer Lab,Menred Group Co,Ltd,Wenzhou 325000,China
  • Received:2020-06-02 Online:2021-01-26 Published:2021-01-22

Abstract:

In this work, we adopted a manometric method to test the oxygen gas transmission of plastics pipe. The test principle was introduced, and the oxygen permeability of the representative plastic tube, oxygen barrier tube, and new alloy oxygen barrier tube developed by our laboratory were measured. The influence of pipe structure on the test results was discussed. The obtained data were found to have a good regularity, high repeatability, and a short test period as short as only 2 days. This result is helpful to quickly and qualitatively judge the quality of the oxygen resistance of plastic pipes.

Key words: manometric method, plastic pipe, ethylene-vinyl alcohol copolymer, alloy oxygen barrier, oxygen permeability

CLC Number: