A bopet for ttr resin base
A resin-based, base material technology, applied in the field of BOPET (biaxially oriented polyester film, can solve the problems of inability to meet thermal stability, peeling crystallinity, coating solvent surface adaptability, etc., to meet performance requirements, surface adaptability, etc. Sexual improvement effect
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Embodiment 1
[0014] Prepare by base material and organosilicon masterbatch=3.5:6.5 mass ratio, described base material is PET, i.e. polyethylene terephthalate; Described organosilicon masterbatch is dimethyl dichlorosilane ( CH 3 ) 2 SiCl 2 Mixture with polyethylene terephthalate, in which the content of dimethyldichlorosilane is 7000ppm.
[0015] After the prepared raw materials are mixed and dried, they enter the extruder to melt the raw materials at a temperature of 280 ° C. First, the melted raw materials are filtered through a 5 μm high-precision filter, extruded through a T-shaped die, and cooled on a quenching roller. , after preheating with MDO at 55°C~76°C, 3.65 times longitudinal drawing and 4.1 times TDO transverse drawing are carried out, cooling and crystallization treatment is carried out at the end of TDO transverse drawing, and then semi-finished products are harvested through trimming, winding and other processes , and finally after cutting and packaging, it becomes a 4...
Embodiment 2
[0020] The preparation method is the same as in Example 1, only the base material and the silicone masterbatch are prepared in a mass ratio of 4:6, the base material is PET, that is, polyethylene terephthalate; the silicone masterbatch Dimethyldichlorosilane (CH 3 ) 2 SiCl 2 Mixture with polyethylene terephthalate, in which the content of dimethyldichlorosilane is 7000ppm.
[0021] Slitting the BOPET finished product prepared in this example, the excellent-grade rate of the finished product can reach 91%, and the rate of coated A-grade product can reach 83%.
[0022] The main physical and chemical indicators of the TTR resin-based high-speed coating special-purpose 4.2 micron BOPET finished product measured in this embodiment are shown in the following table:
[0023]
Embodiment 3
[0025] The preparation method is the same as that in Example 1, only the base material and the silicone masterbatch are prepared at a mass ratio of 4.5:5.5, the base material is PET, namely polyethylene terephthalate; the silicone masterbatch Dimethyldichlorosilane (CH 3 ) 2 SiCl 2 Mixture with polyethylene terephthalate, in which the content of dimethyldichlorosilane is 7000ppm.
[0026] Slitting the BOPET finished product prepared in this example, the rate of high-grade finished product can reach 90%, and the rate of coated A-grade product can reach 87%.
[0027] The main physical and chemical indicators of the TTR resin-based high-speed coating special-purpose 4.2 micron BOPET finished product measured in this embodiment are shown in the following table:
[0028]
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