The invention discloses a preparation method of a high-strength heat-resistant optical cable. The exterior of the optical cable is a corrosion-resistant sheath layer. The preparation steps of the sheath layer material are as follows: preparing composite powder; preparing modified powder; preparing matrix pellets; uniformly mixing the matrix pellets, the modified powder, calcium stearate and antioxidant 1010 at a mass ratio of matrix pellets : modified powder : calcium stearate : antioxidant 1010 = 100 : 6–8 : 0.7–0.8 : 0.7–0.8; adding the mixture into an internal mixer for internal mixing at 165℃ for 10 minutes, then transferring it to a twin-screw extruder and extruding at 220℃ to obtain the sheath layer material. The sheath layer material prepared by the method of the invention has excellent mechanical strength and heat resistance, and provides excellent protection for the optical cable, extending its service life in high-temperature and high-stress application scenarios and reducing maintenance costs.
Country Code: CN
Application Number: CN202411028087.3
