▎ 摘　　要

NOVELTY - Plastic film composite material comprises 34-42 pts. wt. starch, 23-31 pts. wt. polyvinyl alcohol, 0.1-0.4 pts. wt. urea, 1-3 pts. wt. glycerol, 2-5 pts. wt. l-proline, 1-3 pts. wt. sodium hydroxide, 3-6 pts. wt. nano-titanium dioxide, 2-4 pts. wt. manganese stearate, 3-7 pts. wt. kaolin, 3-6 pts. wt. chitosan, 2-4 pts. wt. sodium carboxymethylcellulose and 7-11 pts. wt. attapulgite soil. USE - Plastic film composite material. ADVANTAGE - The plastic film composite material improves the barrier properties of the composite film and reduces oxygen permeability, has high-conductivity and degradability. DETAILED DESCRIPTION - Plastic film composite material comprises 34-42 pts. wt. starch, 23-31 pts. wt. polyvinyl alcohol, 0.1-0.4 pts. wt. urea, 1-3 pts. wt. glycerol, 2-5 pts. wt. l-proline, 1-3 pts. wt. sodium hydroxide, 3-6 pts. wt. nano-titanium dioxide, 2-4 pts. wt. manganese stearate, 3-7 pts. wt. kaolin, 3-6 pts. wt. chitosan, 2-4 pts. wt. sodium carboxymethylcellulose, 7-11 pts. wt. attapulgite soil, 3-6 pts. wt. graphene oxide, 2-3 pts. wt. polyethylene imine, 5-8 pts. wt. vinyl acetate, 3-6 pts. wt. multi-walled carbon nanotubes, 2-5 pts. wt. silver acetate, acetic acid, deionized water, ammonia and concentrated nitric acid amount. An INDEPENDENT CLAIM is included for a method for preparing plastic film composite material, which involves: (A) dissolving the L-proline in deionized water in mass ratio of 1:30-40; (B) adding sodium hydroxide and stirring for 1-2 hours to obtain solution A; (C) dispersing the 21-25 pts. wt. nano-titanium dioxide in de-ionized water and subjecting to ultrasonic treatment for 1-2 hours to obtain solution B; (D) dropping the A liquid in to B liquid under magnetic stirring at speed of 70-80 degrees C per minute at 90-100 degrees C for 1-2 hours; (E) heating to 90-100 degrees C and putting in the oven at 100-110 degrees C; (F) drying for 3-5 hours and grinding in to powder; (G) adding manganese stearate and uniformly mixing with kaolin; (H) extruding and granulating by double screw extruder to obtain degradable grains; (I) adding chitosan and acetic acid in mass ratio of 1:3-6 and stirring for 20-40 minutes; (J) adding sodium carboxymethyl cellulose and de-ionized water in mass ratio of 1:10-15; (K) stirring and adding attapulgite; (L) subjecting to ultrasonic treating for 1-2 hours; (M) adding starch and water in mass ratio of 1:15-20 and stirring uniformly; (N) adjusting pH to 7-8; (O) heating to 80-90 degrees C for 1-2 hours and adding vinyl acetate at 50-60 degrees C; (P) stirring for 1-2 hours to obtain solution A; (Q) adding graphene oxide and water in mass ratio of 1:5-10; (R) subjecting to ultrasonically vibrating and dispersing for 1-2 hours; (S) adding polyethyleneimine and solution A and mixing uniformly; (T) adding multi-wall carbon nano-tube and concentrated nitric acid in mass ratio of 1:2-3; (U) heating to 80-90 degrees C under water bath and stirring for 3-5 hours; (V) cooling and filtering; (W) washing in to neutrality by water; (X) adding silver acetate, deionized water and ammonia water in mass ratio of 1:3-5; (Y) subjecting to ultrasonically dispersing for 1-2 hours and centrifugally separating; (Z) heating at 280-320 degrees C for 2-3 hours under protection of nitrogen; (() adding polyvinyl alcohol in to deionized water in mass ratio of 1:10-20; (\) stirring for 30-50 minutes and adding glycerine, urea and a, b, c, d material; ()) stirring continuously and reacting for 1-2 hours to obtain coating solution; (^) filtering while hot and pouring in the crystallization vessel; and (_) subjecting to casting forming and drying naturally to obtain desired product.