A low temperature process for the application of three-layer polyethylene coatings

作者：Qi, Shao Huai^*; Bin, Zhang Qi; Li, Han Wen; Bei, Xie Bei; Ping, Xu Zhong; Bai, Huang Gui

来源：ANTI-CORROSION METHODS AND MATERIALS, 2011, 58(6): 312-314.

DOI：10.1108/00035591111178864

• Plastics
• Coating processes
• Steels
• Corrosion three-layer polyethylene
• Low application temperature
• Epoxy powder coating
• X80 longitudinally welded pipe

Purpose The purpose of this paper is to report the investigation of a low temperature application process for three-layer polyethylene coating (3LPE) at 185-195 degrees C to meet the requirement of the coating temperature for X80 longitudinally welded pipe.
Design/methodology/approach - Plant coating and laboratory tests were performed to determine the properties of 3LPE coating coated at 185-195 degrees C.
Findings The properties of the 3LPE coating, which was applied by using a suitable low temperature cured epoxy powder at temperature of 185-195 degrees C, were nearly the same as those of a 3LPE coating that had been applied at the normal coating temperature (200-230 degrees C).
Originality/value Recommended acceptance criteria for 3LPE coatings applied at 185-195 degrees C are proposed. The research results met the requirements for external anti-corrosion properties for X80 longitudinally welded pipe.

• 出版日期2011
• 单位天津科技大学