▎ 摘　　要

NOVELTY - Modified thermoplastic elastomer data line sheathing material comprises 100-104 pts. wt. styrene ethylene butylene styrene (SEBS), 65-68 pts. wt. stearic acid, 29-31 pts. wt. polypropylene, 21-23 pts. wt. polypropylene grafted maleic anhydride, 3-4 pts. wt. antioxidant B215, 81-83 pts. wt. magnesium hydroxide, 4.3-5 pts. wt. graphene, 1.6-1.7 pts. wt. silane coupling agent A-171, 8-9 pts. wt. anhydrous ethanol, 8-9.5 pts. wt. EVA Resins, 4-5 pts. wt. chlorinated polyethylene, 3-5 pts. wt. vulcanized rubber, 5-6 pts. wt. wollastonite powder, water, and 1-1.5 pts. wt. polyvinyl alcohol. USE - Modified thermoplastic elastomer data line sheathing material. ADVANTAGE - The modified thermoplastic elastomer data line sheathing material has increased electrical conductivity, improves mechanical properties and processing performance, has smooth appearance without bubbling and is durable. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing modified thermoplastic elastomer data line sheathing material, which involves: (A) drying magnesium hydroxide in a blast oven at 110 degrees C for 4 hours; (B) adding silane coupling agent A-171 to anhydrous ethanol, stirring at 500 revolutions per minute (rpm) for 30 minutes, and then spraying onto dry magnesium hydroxide; (C) adding into the high-speed mixer, adding graphene and mixing at 2000 rpm; (D) stirring at room temperature for 30 minutes and raising temperature to 60 degrees C, and stirring for 30 minutes; (E) drying at 110 degrees C for 3 hours to obtain a flame retardant; (F) placing SEBS, polypropylene, polypropylene grafted maleic anhydride in a blast oven and drying at 80 degrees C for 4 hours; (G) mixing dried SEBS with stearic acid and placing in a high-speed mixer; (H) stirring at 1000 rpm for 20 minutes, removing and standing for 12 hours, until SEBS is fully swollen in stearic acid to obtain oily SEBS; (I) adding polypropylene, polypropylene grafted maleic anhydride into the two-roll at 170 degrees C in the open-type plastic mill and after 10 minutes of plastic mixing, adding oil SEBS, antioxidant B215; (J) mixing for 20 minutes; (K) crushing into a blast oven and drying for 2 hours to obtain a mixed base; (L) crushing bamboo charcoal and passing over 800 mesh sieve, and adding wollastonite powder, polyvinyl alcohol mixed into the ball mill; (M) adding appropriate amount of water to form a slurry, milling for 2 hours, filtering and drying to obtain a ground mixed powder; (N) mixing mixed powder with chlorinated polyethylene and then adding to a twin-screw extruder; (O) heating at 140 degrees C and stirring at 100 revolutions per minute for 20 minutes; (P) extruding and drying mixture to obtain a mixed material; (Q) mixing complex flame retardant, mixed base, mixed materials and the remaining components into the high-speed mixer at 170 degrees C at 500 rpm for 20 minutes and adding material into the flat vulcanizing machine; (R) heating at 180 degrees C and cooling at room temperature; (S) crushing film into particles; and (T) adding particles into the twin-screw extruder for extrusion and granulation and drying at 80 degrees C for 4 hours to obtain product.