Water-foamed, antibacterial and air-permeable microporous film masterbatch, film and preparation method thereof
A technology of microporous film and water foaming, which is applied in the fields of water foaming antibacterial and breathable microporous film masterbatch, plastic film and its preparation, which can solve the problem of long time for filler particles to dissolve out, open porosity affecting film strength, uncertain There are many factors to achieve the effect of excellent comprehensive mechanical properties, controllable micropore density, and small and uniform cell size
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Embodiment 1
[0030] A water-foaming antibacterial and breathable microporous film masterbatch, consisting of the following materials in parts by weight: 90 parts of polyethylene, 3 parts of EVA, 10 parts of sepiolite powder + calcium sulfate whiskers, tert-butyl peroxycarbonate-2-ethyl 0.04 part of hexyl ester, 0.08 part of acrylate, 1 part of silane coupling agent, 0.5 part of plastic antioxidant.
[0031] The preparation method of the water-foaming antibacterial and breathable microporous film containing the above-mentioned water-foaming antibacterial and breathable microporous film masterbatch comprises the following steps:
[0032] S1. Put the microporous water-absorbing inorganic foaming material into a high-speed mixer, add a surfactant and mix for 15 minutes, then put in polyethylene raw materials, modifiers, initiators, antioxidants, premix for 25 minutes, and then mix the premix Put into twin-screw extruder to granulate into water-foaming antibacterial and breathable microporous f...
Embodiment 2
[0037] A water-foaming antibacterial and breathable microporous film, made of the following materials in parts by weight: 80 parts of polypropylene, 5 parts of POE, 20 parts of ultrafine microporous calcium carbonate+zinc oxide whiskers, 0.03 parts of benzoyl peroxide, 0.15 parts of divinylbenzene, 2 parts of aluminum-titanium composite coupling agent, and 3 parts of plastic antioxidant.
[0038] The preparation method of the water-foaming antibacterial and breathable microporous film containing the above-mentioned water-foaming antibacterial and breathable microporous film masterbatch comprises the following steps:
[0039] S1. Put the water-absorbing microporous inorganic foaming material into the high-speed mixer, add the surfactant and mix for 20 minutes, then put in the raw materials, modifiers, initiators, antioxidants, pre-mix for 30 minutes, and then put the premix into the double Screw extruder granulation into water foaming to prepare antibacterial breathable micropo...
Embodiment 3
[0044]A water-foaming antibacterial and breathable microporous film, made of the following materials by weight: 70 parts of ethylene-vinyl acetate copolymer, 2 parts of polyvinyl alcohol, 30 parts of diatomaceous earth+calcium sulfate whiskers, benzoyl peroxide Acyl 0.02 parts, styrene 0.2 parts, surfactant 1.5 parts, plastic antioxidant 2 parts.
[0045] The preparation method of the water-foaming antibacterial and breathable microporous film containing the above-mentioned water-foaming antibacterial and breathable microporous film masterbatch comprises the following steps:
[0046] S1. Put the water-absorbing microporous inorganic foaming material into the high-speed mixer, add the surfactant and mix for 20 minutes, then put in the raw materials, modifiers, initiators, antioxidants, pre-mix for 25 minutes, and then put the premix into the double Screw extruder granulation into water foaming to prepare antibacterial breathable microporous film masterbatch;
[0047] S2. Put t...
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