The invention discloses a
pipe for
irrigation,
water delivery and drainage in farmland water conservancy. The
pipe is characterized by being composed of the following raw materials in parts by weight: 90-97 parts of high-density
polyethylene, 0.7-1 part of dodecyl trimethyl
ammonium chloride, 1-2 parts of
zinc oxide, 2-3 parts of dimethacrylic acid glycol ester, 0.6-1 part of
pyromellitic dianhydride, 2-3 parts of glycerin, 2-3 parts of
maleic anhydride grafted
polypropylene, 1-2 parts of zirconia, 1-2 parts of
sodium antimonite, 2-3 parts of
sillimanite, 0.1-0.4 part of butylmercaptooxo-
stannane, 0.6-1 part of
antioxidant 1010 and 8-14 parts of composite filler. The corrugated
pipe disclosed by the invention is good in circulation, smooth in inner wall, small in
frictional resistance and favorable in deposition and blockage preventing capability.