▎ 摘　　要

NOVELTY - Thermal resistant geogrid comprises 1-2 pts. wt. scolecite, 3-4 pts. wt. oxidized polyethylene wax, 5-7 pts. wt. graphene oxide, 40-50 pts. wt. p-hydroxybenzoic acid, 10-17 pts. wt. acetic anhydride, 0.08-0.1 pts. wt. zinc acetate, 20-30 pts. wt. 2-hydroxy-6-naphthoic acid, 180-200 pts. wt. high density polyethylene, 0.1-0.3 pts. wt. polyoxyethylene castor oil, 2-4 pts. wt. monoaluminum phosphate, 3-5 pts. wt. polybutylene terephthalate, 0.7-1 pts. wt. ethylenedi(stearamide), 4-7 pts. wt. dioctyl sebacate and 0.6-1 pts. wt. 2-aminoethyl-heptadecenyl-imidazoline. USE - Used as thermal resistant geogrid (claimed). ADVANTAGE - The geogrid: has good stability; can be used in high-temperature areas; and cannot be easily damaged. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing thermal resistant geogrid comprising (i) taking 60-70% acetic anhydride and p-hydroxybenzoic acid, mixing, adding into an oil bath at 138- 140 degrees C, keep stirring for 10-15 minutes, adding 0.01-0.02% of the amount of sulfuric acid (96-98%) into the mixed material, preserving temperature and reacting for 3-5 hours, discharging, filtering, pouring into a mold, heating, pouring into 1.6-2 times the amount of ice water, allowing to stand for 3-5 minutes, drying by blowing air, placing into vacuum drying box and drying at 50-60 degrees C for 20-24 hours to obtain acetylated monomer A, (ii) taking 2-hydroxy-6-naphthoic acid and residual acetic anhydride, adding to oil bath, keeping temperature at 120-130 degrees C and reacting for 3-4 hours, discharging, pouring into the mold, heating, pouring into 1.6-2 times the amount of ice water, allowing to stand for 3-5 minutes, drying by blowing air, placing into the vacuum drying box and drying at 50-60 degrees C for 20-24 hours to obtain acetylated monomer B, (iii) taking scolecite and calcining at 700-800 degrees C for 1-2 hours, cooling to room temperature, adding 3-4 times the amount of deionized water, adding monoaluminum phosphate, raising the temperature to 80-90 degrees C, stirring under heating condition until the water is dried, mixing uniformly, ball milling with graphene oxide to obtain composite graphene oxide, (iv) taking composite graphene oxide, adding 100-120 times the amount of aqueous anhydrous ethanol, ultrasonically dispersing for 50-60 minutes, sequentially adding acetylated monomer A and acetylated monomer B, ultrasonically processing for 30-40 minutes, distilling the product under reduced pressure, vacuum drying at 60-70 degrees C for 20-25 hours to obtain monomer pre-processed graphene, (v) adding monomer pre-processed graphene and zinc acetate, mixing, adding into reaction kettle under nitrogen protection, raising the temperature to 240-250 degrees C, preserving the temperature and reacting for 3-4 hours, continuously raising the temperature to 270-280 degrees C, preserving temperature and reacting for 1-2 hours, continuously raising the temperature to 290-300 degrees C, preserving temperature and reacting for 30-40 minutes, discharging and cooling to obtain copolyester graphene composite material, (v) taking oxidized polyethylene wax, adding 10-15 times the amount of anhydrous ethanol, raising temperature to 70-80 degrees C, keeping the temperature for 10-15 minutes, adding polyoxyethylene castor oil, and uniformly stirring to obtain alcohol dispersion liquid, and (vii) mixing copolyester graphene composite material and alcohol dispersion liquid, adding 2-aminoethyl-heptadecenyl-imidazoline and polybutylene terephthalate under stirring condition, preheating at 90-95 degrees C for 10-16 minutes, adding remaining raw materials, uniformly stirring, adding into an extruder and carrying out melt extrusion, melt pressing into sheet, rolling using a three-roller machine, punching and stretching to obtain obtaining geogrid.