Manufacturing technology of PBT used for loose tube of optical cable
A production process and technology of loose tubes, applied in the field of PBT production process for optical cable loose tubes, can solve the problems that cannot meet the production requirements of large loose tubes, and achieve the effects of increasing flexibility, facilitating cable formation, and accelerating crystallization speed
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Embodiment 1
[0013] The present invention processes according to the following steps:
[0014] 1) Preliminary treatment: take PBT for thickening;
[0015] 2) Stirring once: put the thickened PBT into a high-speed mixer, and add 5# white oil, the mass ratio of the white oil to the PBT is 1‰:1, and the stirring time is 10 minutes;
[0016] 3) Secondary stirring: put the polypropylene nucleating agent NA-11 into a high-speed mixer, the mass ratio of the polypropylene nucleating agent to the PBT is 1‰:1, and the stirring time is 15 minutes;
[0017] 4) Dust removal: Put the materials after secondary stirring into the vibrating screen for dust removal; complete.
Embodiment 2
[0019] The present invention processes according to the following steps:
[0020] 1) Preliminary treatment: take PBT for thickening;
[0021] 2) Stirring once: put the thickened PBT into a high-speed mixer, and add 5# white oil, the mass ratio of the white oil to the PBT is 3‰:1, and the stirring time is 5 minutes;
[0022] 3) Secondary stirring: put the polypropylene nucleating agent NA-11 into a high-speed mixer, the mass ratio of the polypropylene nucleating agent to the PBT is 11.5‰:1, and the stirring time is 8 minutes;
[0023] 4) Dust removal: Put the materials after secondary stirring into the vibrating screen for dust removal; complete.
Embodiment 3
[0025] The present invention processes according to the following steps:
[0026] 1) Preliminary treatment: take PBT for thickening;
[0027] 2) Stirring once: put the thickened PBT into a high-speed mixer, and add 5# white oil, the mass ratio of the white oil to the PBT is 2‰:1, and the stirring time is 8 minutes;
[0028] 3) Secondary stirring: put the polypropylene nucleating agent NA-11 into a high-speed mixer, the mass ratio of the polypropylene nucleating agent to the PBT is 1.25‰:1, and the stirring time is 12 minutes;
[0029] 4) Dust removal: Put the materials after secondary stirring into the vibrating screen for dust removal; complete.
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