A kind of modified nano barium sulfate reinforced polypropylene membrane and preparation method thereof
A nano barium sulfate and polypropylene film technology, applied in the field of functional packaging materials, can solve the problems of high surface energy, unstable thermodynamics, large specific surface area, etc., and achieve the effects of good mechanical properties and barrier properties, beautiful appearance and high transparency
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Embodiment 1
[0030] Modified nano-barium sulfate reinforced polypropylene film, in parts by weight: 15 parts of nano-barium sulfate, 3.5 parts of maleic anhydride grafted polyethylene, 68 parts of polypropylene resin, 3.2 parts of organic montmorillonite, 0.3 parts of coupling agent, Enhancer 10 parts.
[0031] The dimensions of the nano barium sulfate feature are 1-100nm. The coupling agent is a phthalate coupling agent. The reinforcing agent is nano kaolin. The compatibilizer is organic montmorillonite.
[0032] The specific steps are:
[0033] (1) Preparation of modified nano barium sulfate:
[0034] a. Take nano-barium sulfate, add 250 parts of absolute ethanol, then add 0.5 parts of sodium chloride, heat and reflux and stir, and control the temperature at 55-60°C, so that the nano-barium sulfate is completely dispersed to form a suspension;
[0035] b. Take nano-barium sulfate suspension and add it to a beaker, heat it in a constant temperature water bath to 70°C, and keep it at ...
Embodiment 2
[0041] Modified nano-barium sulfate reinforced polypropylene film, in parts by weight: 20 parts of nano-barium sulfate, 3.2 parts of maleic anhydride grafted polyethylene, 65 parts of polypropylene resin, 3 parts of organic montmorillonite, 0.8 parts of coupling agent, Enhancer 8 parts.
[0042] The dimensions of the nano barium sulfate feature are 1-100nm. The coupling agent is or aluminate coupling agent. The reinforcing agent is nano kaolin and microcrystalline muscovite. The compatibilizer is maleic anhydride grafted polyethylene and maleic anhydride grafted polypropylene.
[0043] The specific steps are:
[0044] (1) Preparation of modified nano barium sulfate:
[0045] a. Take nano-barium sulfate, add 280 parts of absolute ethanol, then add 2 parts of sodium chloride, heat and reflux and stir, and control the temperature at 60-70°C, so that the nano-barium sulfate is completely dispersed to form a suspension;
[0046] b. Take the nano-barium sulfate suspension and a...
Embodiment 3
[0052] Modified nano-barium sulfate reinforced polypropylene film, in parts by weight: 25 parts of nano-barium sulfate, 3 parts of maleic anhydride grafted polyethylene, 60 parts of polypropylene resin, 3 parts of organic montmorillonite, 1 part of coupling agent, Enhancer 8 parts.
[0053] The dimensions of the nano barium sulfate feature are 1-100nm. The coupling agent is a phthalate coupling agent and or an aluminate coupling agent. The reinforcing agent is microcrystalline muscovite. The compatibilizer is maleic anhydride grafted polypropylene.
[0054] The specific steps are:
[0055] (1) Preparation of modified nano barium sulfate:
[0056] a. Take nano-barium sulfate, add 265 parts of absolute ethanol, then add 1.2 parts of sodium chloride, heat and reflux and stir, and control the temperature at 60°C, so that the nano-barium sulfate is completely dispersed to form a suspension;
[0057] b. Take the nano-barium sulfate suspension and add it to the beaker, heat it i...
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