High-barrier thin film modified by nano rare earth nucleating agent
A high-barrier film and nano-rare-earth technology, which is applied in the field of biaxially stretched film and barrier film, can solve the problems of low strength, high haze, and high brittleness, and achieve the effect of improving elongation at break
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Embodiment 1
[0025] The high barrier film is prepared according to the following formula: the content of MXD6 in the surface layer 1 is 30%, the content of PA6 is 64.5%, the content of anti-sticking masterbatch is 2%, the content of maleic anhydride grafted MXD6 is 3%, oxidation The content of cerium is 0.5%; the content of MXD6 in the core layer is 99.5%, and the content of cerium oxide is 0.5%; the content of MXD6 in the surface layer 2 is 30%, the content of PA6 is 64.5%, and the content of the anti-sticking masterbatch is 2%, the content of maleic anhydride grafted MXD6 is 3%, and the content of cerium oxide is 0.5%.
[0026] The preparation process of the high barrier film is as follows: the raw materials mixed according to the above formula are respectively melted in three extruders, and the melt is cast from a T-die to a chill roll with a surface temperature of 20°C for quenching casting. The thickness of the cast piece is about 150μm; then the above-mentioned cast piece is sent to the...
Embodiment 2
[0028] The high barrier film is prepared according to the following formula: in the surface layer 1, the content of MXD6 is 30%, the content of PA6 is 55%, the content of anti-sticking masterbatch is 2%, the content of maleic anhydride grafted MXD6 is 8%, and lanthanum oxide The content of MXD6 is 5%; the content of MXD6 in the core layer is 95% and the content of lanthanum oxide is 5%; the content of MXD6 in the surface layer 2 is 30%, the content of PA6 is 55%, and the content of anti-sticking masterbatch is 2 %, the content of maleic anhydride grafted MXD6 is 8%, and the content of lanthanum oxide is 5%.
[0029] The preparation process of the high barrier film is the same as in Example 1.
Embodiment 3
[0031] The high barrier film is prepared according to the following formula: in the surface layer 1, the content of MXD6 is 30%, the content of PA6 is 60.5%, the content of anti-sticking masterbatch is 2%, the content of maleic anhydride grafted MXD6 is 5.5%, rubidium oxide The content of MXD6 is 2%; the content of MXD6 in the core layer is 98%, and the content of rubidium oxide is 2%; the content of MXD6 in the surface layer 2 is 30%, the content of PA6 is 60.5%, and the content of anti-sticking masterbatch is 2 %, the content of maleic anhydride grafted MXD6 is 5.5%, and the content of rubidium oxide is 2%.
[0032] The preparation process of the high barrier film is the same as in Example 1.
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