| 摘要 |
A water pipe having a triple-wall structure comprises an outer layer, an inner layer, and a middle layer. The outer layer and the inner layer comprise, with respect to 100 wt% of a PVC resin whose degree of polymerization is 800 to 1200, a resin composite composed of 0.1-8.0 wt% of POK, 0.1-10 wt% of a filler, 0.1-5.0 wt% of titanium dioxide (white pigment), 0.1-8.0 wt% of an impact reinforcing agent, 0.01-10 wt% of a lubricant, 0.1-5.0 wt% of a processing aid material, 2-5.0 wt% of a compound stabilizing agent, and 0.01-0.05 wt% of an antibacterial agent. And the middle layer comprises, with respect to 100 wt% of the PVC resin whose degree of polymerization is 800 to 1200, a resin composite composed of 0.1-8.0 wt% of POK, 0.1-3 wt% of a carbon nanotube, 0.1-2 wt% of a polycaprolactone-polyamine copolymer, 0.1-10 wt% of a filler, 0.1-5.0 wt% of titanium dioxide (white pigment), 0.1-8.0 wt% of an impact reinforcing agent, 0.01-10 wt% of a lubricant, 0.1-5.0 wt% of a processing aid material, and 2-5.0 wt% of a compound stabilizing agent. Impact strength, tensile strength, flexure strength, chemical resistance, wear resistance, and dimensional stability are improved. Also, a PVC resin content is relatively reduced to reduce a weight of a PVC pipe. |
