Heat-resistant flexible composite filter material prepared by blending melt-blown polypropylene with modified caustic-burned magnesium powder and used for sewage treatment and preparation method thereof
The technology of melt-blown polypropylene and light-burned magnesium powder is applied in the field of toughness composite filter material of melt-blown polypropylene mixed with modified slag for sewage treatment and its preparation field, which can solve the problem that the composition and content of pollutants are difficult to control, and the filter material is difficult to control. Poor strength and durability, small structural voids, etc., to achieve the effect of prolonged adsorption treatment time, improved surface properties, and flexible shape
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[0014] The present invention will be further described below in conjunction with embodiment.
[0015] A heat-resistant and tough composite filter material of melt-blown polypropylene mixed with modified light-burned magnesium powder for sewage treatment, characterized in that: the composite filter material is made of the following raw materials in parts by weight: soft silica gel 6, nano-clay 1. Nano-hydroxyapatite 2.5, 400 mesh carbonized crop straw powder 14, polypropylene 35, 200 mesh lightly burned magnesium powder 18, sodium citrate 0.3, sodium carbonate 0.6, rosin 2.5, silane coupling agent KH-550 1.5;
[0016] The preparation method of above-mentioned composite filter material comprises the following steps:
[0017] (1) First put sodium citrate and sodium carbonate into water, stir until they are completely dissolved, then put in lightly burned magnesium powder, soak for 2.5 hours and stir evenly, then add nano-clay, nano-hydroxyapatite, carbonized crop straw powder, S...
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