- One of the requirements of film grade resin is the melt conductivity level. Specific mixtures of metals, phosphorous levels, and concentration of total ion impurities are the determining factors for melt conductivity.
- Masterset PES 1051 contains optimzed mixtures of elements which improves the melt conductivity without increasing crystallization rate. Increasing crystallization rate will increase the waste in the edges of the films.
- Increasing the phosphorous level in PET will decrease the melt conductivity whereas decreasing the phosphorous level will increase the melt conductivity. Therefore, free phosphorous level in PET should be well controlled.
- For specific melt resistivity Requirement of 7-15x10⁷ ohms.cm, % 1 dosing is recommended. For this level, for TPA based polymerization process, the phosphorous level should be at the level of 20 ppm max.
- One other factor affecting melt conductivity is the carboxylic acid number. Therefore, the CEG level should be controlled to keep constant melt conductivity.
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- UV Stabilizers for Fibers
- Halogen Free Flame Retardant Masterbatch
- Antimicrobial Additives for Fibers
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