Abstract
The casting polypropylene (cpp) heat sealing film was prepared by adding the homemade smooth masterbatch, in the storage period of 30 days measured the surface tension is greater than 38 mN/m, the non-corona surface friction coefficient between 0.1 ∼ 0.2, corona surface is 0.5, the longitudinal tensile strength reached 60 MPa, transverse tensile strength reached 27 MPa, the films have high surface tension, low friction coefficient, high mechanical strength properties. Measured at the same time its initial heat sealing temperature, heat sealing strength and optical properties are better than the national standard, to maintain film comprehensive properties are stable during the storage period.
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