The invention discloses a
urea packing bag inner film and a
processing method thereof and relates to the technical field of plastic films. The
urea packing bag inner film is prepared from, by weight, 30-40 parts of
low density polyethylene, 10-15 parts of
polypropylene, 8-12 parts of disproportionated
rosin, 6-10 parts of
terpene resin, 6-10 parts of hydroxypropyl
methyl cellulose, 5-8 parts of filling mineral
powder, 5-8 parts of
microcrystalline wax, 4-6 parts of
guar gum, 3-5 parts of glyceryl monoleate, 3-5 parts of trioctyl citrate, 2-3 parts of
natural rubber, 1-2 parts of
sorbitan monopalmitate, 1-2 parts of chlorinated paraffin and 0.5-1 part of
sodium hexametaphosphate. The inner film has excellent sealing performance, permeability resistance,
aging resistance and stability, the situation that
urea absorbs water in the air and cakes can be effectively prevented, the situation that urea permeates into the inner film and consequently the service life of the inner film is shortened can be prevented, and the situation that urea reacts with inner film ingredients and consequently the purity of urea is affected can be prevented.