▎ 摘　　要

NOVELTY - Antibacterial PTFE composite material comprises silver zeolite, PTFE, carbon fiber, antibacterial agent VK-T08, steel fiber, fluorine rubber powder, polyamide fiber, graphene oxide, silicon dioxide (SiO2), silane coupling agent KH550, 95% ethanol, acetic acid, polyisocyanate JQ-1, dimethylformamide (DMF), 4-dimethylaminopyridine (DMAP), dicyclohexylcarbodiimide (DCC) and water. The median length of carbon fiber is 75-150 mu m. The median length of steel fiber is 50-150 mu m. The particle size of fluorine rubber powder is 80-200 mesh. USE - Antibacterial PTFE composite material. ADVANTAGE - The antibacterial PTFE composite material has improved tensile strength and bonding strength and antibacterial and mildew-proof function provided by silver zeolite. DETAILED DESCRIPTION - Antibacterial PTFE composite material comprises 5-10 pts. wt. silver zeolite, 80-90 pts. wt. PTFE, 10-15 pts. wt. carbon fiber, 1-3 pts. wt. antibacterial agent VK-T08, 5-10 pts. wt. steel fiber, 20-25 pts. wt. fluorine rubber powder, 1-2 pts. wt. polyamide fiber, 1-3 pts. wt. graphene oxide, 5-10 pts. wt. SiO2, 15-20 pts. wt. silane coupling agent KH550, 30-40 pts. wt. 95% ethanol, acetic acid, 5-10 pts. wt. polyisocyanate JQ-1, 15-20 pts. wt. DMF, 10-15 pts. wt. DMAP, 15-20 pts. wt. DCC and 90-100 pts. wt. water. The median length of carbon fiber is 75-150 mu m. The median length of steel fiber is 50-150 mu m. The particle size of fluorine rubber powder is 80-200 mesh. An INDEPENDENT CLAIM is included for preparation of antibacterial PTFE composite material comprising adding carbon fiber in 20-25 pts. wt. 95% ethanol solvent, ultrasonically dispersing uniformly, adding acetic acid to adjust the pH at 4-5, adding 8-12 pts. wt. silane coupling agent KH550, stirring for 8-15 hours, washing with deionized water, vacuum drying, obtaining material A, adding the rest of 95% ethanol solvent in graphene oxide, oxidizing by glow discharge plasma method to obtain graphene peroxide, adding graphene peroxide in DMF, ultrasonically treating for 2-3 hours, stirring, sequentially adding DMAP, DCC and material A, reacting at normal temperature for 18-36 hours, washing with deionized water, vacuum drying to obtain material B, adding fluorine rubber powder in polyisocyanate JQ-1, mechanically stirring, adding the dried steel fiber, silver zeolite, antibacterial agent VK-T08 and polyamide fiber, continuously mechanically stirring for 1-3 hours, water washing and drying to obtain material C, adding material C, material B, 70-75 pts. wt. PTFE in high-speed mixer, uniformly mixing, cold pressing, forming, sintering in air atmosphere at 360-390 degrees C, molding, obtaining plate having diameter of 150-250 mm and thickness of 3-4 mm, dipping in coating liquid, taking out after 4-8 minutes, oven drying at 80-100 degrees C, sintering for 10-30 minutes at 120-200 degrees C in muffle furnace, and taking out, where coating liquid is prepared by grinding SiO2, adding the rest PTFE and silane coupling agent KH550 dispersed in water, and ultrasonically dispersing uniformly to obtain the coating liquid.