Effect Of Pbt Color Masterbatch On Shrinkage Of Loose Tube

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The stability performance of Anmei PBT low-shrinkage masterbatch in over-length shrinkage and post-shrinkage of large-wall thickness casing proved by tests
In the operation and maintenance of optical cables, splicing (fusion) is usually performed by identifying the color of optical cables. Different optical cables, different casings, and different optical fibers can be distinguished by color. Polybutylene terephthalate (PBT) is the main material for fiber optic sleeves. In the production process of the secondary sleeve, the PBT is formed into a loose tube by extrusion molding, which provides protection for the optical fiber in the sleeve. The excess length of the optical fiber or the optical fiber ribbon in the sleeve is the most important parameter in the secondary sheathing process, which largely determines the main performance of the optical fiber loss, cable stretching, and temperature characteristics.