CN104759148A - High-efficient composite filter material prepared by blending melt-blown polypropylene with carbon nano-tube and used for sewage treatment and preparation method thereof - Google Patents

Abstract

The invention relates to a filter material used for sewage treatment and particularly relates to a high-efficient composite filter material prepared by blending melt-blown polypropylene with carbon nano-tube and used for sewage treatment and a preparation method thereof. The filter material is prepared from following raw materials, by weight: 0.2-0.3 parts of sponge iron micro powder in 200-300 meshes, 30-35 parts of polypropylene, 1-2 parts of a titanate coupling agent, 1-2 parts of sodium humate, 2-3 parts of polyether-modified silicone oil, 1-2 parts of multiwalled carbon nano-tube, 28-32 parts of kieselguhr fine powder in 200-300 meshes, 5-8 parts of nano-titanium sol, 0.8-1 part of lauryl sodium sulfate and 30-40 parts of water. In the invention, the modified kieselguhr filter material micro powder is supported onto the modified polypropylene master batch melt-blown filaments to prepare the filter material having a stereoscopic network structure. The filter material is excellent and high-efficient in water-purifying effect, is good in mechanical performances, is changeable in shape, is not liable to damage and is high in repeating utilization rate.

Description

High efficiency composition filtrate of a kind of sewage disposal fusion-jetting polypropylene carbon-doped nanotube and preparation method thereof

Technical field

The present invention relates to a kind of sewage disposal filtrate, be specifically related to high efficiency composition filtrate of a kind of sewage disposal fusion-jetting polypropylene carbon-doped nanotube and preparation method thereof.

Background technology

Along with socioeconomic development, water pollutions increases the weight of day by day, pollutant component and content are difficult to control more, more and more higher to the requirement of water technology, original conventional treatment material obviously can not meet needed for production, improve the efficiency of water treatment, need to increase water quality from source treatment effect, and the serviceability improving filtrate the most efficient the most direct beyond doubt method, current use comparatively widely filtrate mainly contains quartz sand filter media, ANTHRACITE FILTER MEDIA, volcanic rock filtrate and string class filtrate etc., these filtrates in use each tool are good and bad, on the whole, improve the service efficiency of these filtrates, reduce production cost and be still the problem needing to solve.

Polypropylene melt-blown material is a kind of novel filtering material, mutually tangle between its fiber, structural void is little, spatially network structure, and product flexibility is strong, can make various shape as required, have that filtration resistance is low, filter effect is high, output is high, cost is low, the not advantage such as cracky, existing research shows that it is well worth doing at sewage treatment area, however the shaping filtrate intensity of simple polypropylene melt-blown and durability poor, the adsorption capacity of dirt is had much room for improvement.

Summary of the invention

The object of the invention is to, for the deficiency of current material, organic and inorganic to polypropylene melt blown filter materials and tradition filtrate is combined, maximize favourable factors and minimize unfavourable ones, there is provided a kind of using fusion-jetting polypropylene as carrier, load has the NEW TYPE OF COMPOSITE filtrate of the organic and inorganic filtrate of high efficiency of additive capability, and this filtrate production cost is low, absorption cuts dirty effective, highly efficient durable, does not produce secondary pollution.

To achieve these goals, the technical solution used in the present invention is as follows:

A high efficiency composition filtrate for sewage disposal fusion-jetting polypropylene carbon-doped nanotube, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: 200-300 order sponge iron micro mist 0.2-0.3, polypropylene 30-35, titanate coupling agent 1-2, sodium humate 1-2, polyether modified silicon oil 2-3, multi-walled carbon nano-tubes 1-2,200-300 order diatomite fine powder 28-32, nano-titanium colloidal sol 5-8, lauryl sodium sulfate 0.8-1, water 30-40;

The preparation method of the high efficiency composition filtrate of described a kind of sewage disposal fusion-jetting polypropylene carbon-doped nanotube, comprises following steps:

(1) first lauryl sodium sulfate, sodium humate are dropped in water, be stirred to after it dissolves completely, diatomite fine powder is dropped in solution, after soaking 100-120min, high-speed stirred mixes 40-50min, add multi-walled carbon nano-tubes, nano-titanium colloidal sol subsequently again, continue to be uniformly mixed 30-40min, finally by gained mixed material heated-air drying, remove moisture completely, be broken into 300-400 order micro mist for subsequent use;

(2) polypropylene is mixed with sponge iron micro mist, polyether modified silicon oil, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other leftover materials, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 200-220 DEG C through temperature, wherein orifice diameter is 50-100 μm, ejection filament stretch under the high velocity, hot air stream effect of 230-250 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.

Beneficial effect of the present invention:

The present invention utilizes by sodium humate, the aqueous solution of surfactant mixed preparing carries out immersion modification to kieselguhr micropowder, improve powder surface adsorption capacity, wherein the nano-titanium colloidal sol of blending and multi-walled carbon nano-tubes improve the interception capacity of powder to organic dirt greatly, the fiber filaments that this composite filtering material micro mist is carried on the melt-blown preparation of modified polypropylene agglomerate is collected to obtain after being shaped having complicated, the material of multichannel dimensional network structure, the material purifying water effect of this structure is efficiently excellent, and have excellent mechanical property concurrently, not cracky, recycling rate of waterused is high, in addition its form is flexible, according to environment for use and the product preparing variform and size can be required.

Detailed description of the invention

Embodiment

Below with reference to embodiment, the present invention will be further described.

A high efficiency composition filtrate for sewage disposal fusion-jetting polypropylene carbon-doped nanotube, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: 300 order sponge iron micro mists 0.2, polypropylene 34, titanate coupling agent 1.8, sodium humate 1.3, polyether modified silicon oil 2.5, multi-walled carbon nano-tubes 1.2,300 order diatomite fine powder 28, nano-titanium colloidal sol 5, lauryl sodium sulfate 0.8, water 32;

The preparation method of above-mentioned composite filtering material comprises following steps:

(1) first lauryl sodium sulfate, sodium humate are dropped in water, be stirred to after it dissolves completely, diatomite fine powder is dropped in solution, after soaking 120min, high-speed stirred mixes 45min, add multi-walled carbon nano-tubes, nano-titanium colloidal sol subsequently again, continue to be uniformly mixed 35min, finally by gained mixed material heated-air drying, remove moisture completely, be broken into 300 order micro mists for subsequent use;

(2) polypropylene is mixed with sponge iron micro mist, polyether modified silicon oil, stir in rear input double screw extruder and melt extrude granulation at 180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other leftover materials, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 205 DEG C through temperature, wherein orifice diameter is 80 μm, ejection filament stretch under the high velocity, hot air stream effect of 235 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.

The composite filtering material grammes per square metre prepared is 204.2g/m ²porosity is 74.5%, elongation at break is 308%, and fracture strength is 24.5MPa, and bending modulus is 27.2MPa, wear rate≤0.5%, product reaches 95%, COD removal rate to ammonia nitrogen in sewage removal rate and reaches 95%, and heavy metal removal rate reaches 90%, turbidity removal rate reaches 92%, and filter cycle, comparatively conventional material on average improved 62.5%.

Claims (2)

1. a sewage disposal high efficiency composition filtrate for fusion-jetting polypropylene carbon-doped nanotube, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: 200-300 order sponge iron micro mist 0.2-0.3, polypropylene 30-35, titanate coupling agent 1-2, sodium humate 1-2, polyether modified silicon oil 2-3, multi-walled carbon nano-tubes 1-2,200-300 order diatomite fine powder 28-32, nano-titanium colloidal sol 5-8, lauryl sodium sulfate 0.8-1, water 30-40.

2. the preparation method of the high efficiency composition filtrate of a kind of sewage disposal fusion-jetting polypropylene carbon-doped nanotube as claimed in claim 1, is characterized in that, comprise following steps:

(1) first lauryl sodium sulfate, sodium humate are dropped in water, be stirred to after it dissolves completely, diatomite fine powder is dropped in solution, after soaking 100-120min, high-speed stirred mixes 40-50min, add multi-walled carbon nano-tubes, nano-titanium colloidal sol subsequently again, continue to be uniformly mixed 30-40min, finally by gained mixed material heated-air drying, remove moisture completely, be broken into 300-400 order micro mist for subsequent use;

(2) polypropylene is mixed with sponge iron micro mist, polyether modified silicon oil, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other leftover materials, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 200-220 DEG C through temperature, wherein orifice diameter is 50-100 μm, ejection filament stretch under the high velocity, hot air stream effect of 230-250 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.