Nylon film
A technology of nylon membrane and nylon resin, applied in the field of nylon membrane, which can solve the problems of low yield and no nylon membrane, and achieve the effect of excellent depth characteristics
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Embodiment 1
[0090] Nylon 6 (Kolon Industries Inc.) having a relative viscosity of 3.6 was mixed with 8 wt% of silica having an average particle diameter of 3 μm based on the entire masterbatch, thereby preparing a mixed masterbatch in a twin-screw extruder at 245°C.
[0091] Thereafter, the mixed masterbatch was mixed with nylon 6 resin (relative viscosity: 3.6, Kolon Industries Inc.) so that the content of silica particles in the mixture was 2400 ppm, and extruded in an annular die at 260° C. by tube method Simultaneously biaxially stretched 2.95 times in the longitudinal and transverse directions, respectively, and then heat-treated at 200° C., thereby preparing a nylon film having a thickness of 25 μm.
[0092] The longitudinal and transverse moduli of the prepared nylon films and their modulus ratios were measured, and the results are shown in Table 3 below.
[0093] In addition, a bag was prepared using the nylon film prepared as described above, and the depth of the bag when the bag...
Embodiment 2 to 8
[0095] A film was prepared in the same manner as in Example 1 except for adjusting the draw ratio and heat treatment temperature as shown in Table 1 below.
[0096] The longitudinal and transverse moduli of the prepared nylon films and their modulus ratios were measured, and the results are shown in Table 3 below.
[0097] In addition, a bag was prepared using the nylon film prepared as described above, and the depth of the bag when the bag was broken was measured. The results are shown in Table 3 below.
Embodiment 9
[0099] Nylon 6 (Kolon Industries Inc.) with a relative viscosity of 3.3 was mixed with 8 wt % of silica particles having an average particle diameter of 3 μm based on the total masterbatch, thereby preparing a mixed masterbatch in a twin-screw extruder at 245° C. .
[0100] Thereafter, the mixed masterbatch was mixed with nylon 6 resin (relative viscosity: 3.3, Kolon Industries Inc.) so that the content of silica particles in the mixture was 2400 ppm, and extruded in an annular die at 260° C. by tube method Simultaneously biaxially stretched 2.85 times in the longitudinal and transverse directions, respectively, and then heat-treated at 200° C., thereby preparing a nylon film having a thickness of 25 μm.
[0101] The longitudinal and transverse moduli of the prepared nylon films and their modulus ratios were measured, and the results are shown in Table 3 below.
[0102] In addition, a bag was prepared using the nylon film prepared as described above, and the depth of the bag ...
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