CN104759267A - High-efficient deoiling composite filter material prepared by blending melt-blown polypropylene with modified sepiolite and used for sewage treatment and preparation method thereof - Google Patents

Abstract

The invention relates to a filter material used in sewage treatment and particularly relates to a high-efficient deoiling composite filter material prepared by blending melt-blown polypropylene with modified sepiolite and used for sewage treatment and a preparation method thereof. The filter material is prepared from following raw materials, by weight: 20-25 parts of the sepiolite in 200-300 meshes, 6-8 parts of carbonized crop straw powder in 300-400 meshes, 30-35 parts of polypropylene, 0.1-0.2 parts of nano anion powder, 3-6 parts of polyamide wax micro powder, 2-3 parts of rosin, 1-2 parts of silane coupling agent KH-550, 0.2-0.3 parts of nano molybdenum disulfide, 5-8 parts of polystyrene, 0.2-0.4 parts of potassium tartrate, 1-2 parts of nano microcrystal cellulose, 0.6-0.8 parts of cetyl trimethyl ammonium bromide and 30-40 parts of water. In the invention, the modified composite filter material is supported onto the modified polypropylene master batch melt-blown fiber thin filaments to prepare the filter material having a stereoscopic network structure. The filter material is free of adhesion of oil dirt, is high in adsorption efficiency, is not liable to damage and is high in repeat utilization rate.

Description

Efficient degreasing composite filtering material of a kind of sewage disposal fusion-jetting polypropylene mixing modification sepiolite and preparation method thereof

Technical field

The present invention relates to a kind of sewage disposal filtrate, be specifically related to efficient degreasing composite filtering material of a kind of sewage disposal fusion-jetting polypropylene mixing modification sepiolite 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 kind of efficient degreasing composite filtering material of sewage disposal fusion-jetting polypropylene mixing modification sepiolite, it is characterized in that: described composite filtering material is made up of the raw material of following weight portion: 200-300 order sepiolite 20-25, 300-400 order charing crop powder of straw 6-8, polypropylene 30-35, nanometer anion powder 0.1-0.2, polyamide wax micropowder 3-6, rosin 2-3, silane resin acceptor kh-550 1-2, nano molybdenum disulfide 0.2-0.3, polystyrene 5-8, potassium tartrate 0.2-0.4, nano micro crystal cellulose 1-2, softex kw 0.6-0.8, water 30-40,

The preparation method of the efficient degreasing composite filtering material of described a kind of sewage disposal fusion-jetting polypropylene mixing modification sepiolite, comprises following steps:

(1) first potassium tartrate, softex kw and nanometer anion powder are dropped in water, be stirred to after dissolving dispersion completely, sepiolite powder is dropped in solution, soak 1-2h, add nano micro crystal cellulose, charing crop powder of straw subsequently again, high-speed stirred mixing 40-50min, subsequently by gained mixed material heated-air drying, remove moisture completely, be broken into 400-600 order micro mist for subsequent use;

(2) polypropylene is mixed with polyamide wax micropowder, rosin, polystyrene, nano molybdenum disulfide, stir in rear input double screw extruder and melt extrude granulation at 180-190 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 utilize after negative ion powder activation containing potassium tartrate, the aqueous solution of the compositions such as surfactant is to sepiolite, traditional filtrates such as charing crop powder of straw carry out modification, filtrate complex surfaces activity after process is high, high adsorption capacity, this species complex is carried in the fiber filaments of the melt-blown preparation of modified polypropylene agglomerate of dopen Nano molybdenum bisuphide, be prepared into have complicated, the material of multichannel dimensional network structure, this structure of material lengthened the adsorption treatment time of dirt, higher to the removal rate of dirt, surface does not adhere to greasy dirt, especially be applicable to the higher sewage disposal of oil content to use, in addition this material is morphologically more flexible, according to environment for use and the product preparing variform and size can be required, and mechanical property is more excellent, not cracky, stable performance, recycling rate of waterused is high.

Detailed description of the invention

Embodiment

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

An efficient degreasing composite filtering material for sewage disposal fusion-jetting polypropylene mixing modification sepiolite, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: 300 order sepiolite 23,400 order charing crop powder of straw 6, polypropylene 32, nanometer anion powder 0.1, polyamide wax micropowder 4, rosin 2, silane resin acceptor kh-550 1.5, nano molybdenum disulfide 0.2, polystyrene 6, potassium tartrate 0.3, nano micro crystal cellulose 1.5, softex kw 0.6, water 33;

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

(1) first potassium tartrate, softex kw and nanometer anion powder are dropped in water, be stirred to after dissolving dispersion completely, sepiolite powder is dropped in solution, soak 1.5h, add nano micro crystal cellulose, charing crop powder of straw subsequently again, high-speed stirred mixing 45min, subsequently by gained mixed material heated-air drying, remove moisture completely, be broken into 500 order micro mists for subsequent use;

(2) polypropylene is mixed with polyamide wax micropowder, rosin, polystyrene, nano molybdenum disulfide, 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 210 DEG C through temperature, wherein orifice diameter is 50 μm, ejection filament stretch under the high velocity, hot air stream effect of 240 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 209g/m ²porosity is 78%, and elongation at break is 294%, and fracture strength is 14.5MPa, bending modulus is 26.2MPa, wear rate≤0.5%, oily contact angle is 150 ° ± 3 °, and product reaches 95% to ammonia nitrogen in sewage removal rate, COD removal rate reaches 90%, heavy metal removal rate reaches 90%, and turbidity removal rate reaches 90%, and filter cycle, comparatively conventional material on average improved 70%.

Claims (2)

1. the sewage disposal efficient degreasing composite filtering material of fusion-jetting polypropylene mixing modification sepiolite, it is characterized in that: described composite filtering material is made up of the raw material of following weight portion: 200-300 order sepiolite 20-25, 300-400 order charing crop powder of straw 6-8, polypropylene 30-35, nanometer anion powder 0.1-0.2, polyamide wax micropowder 3-6, rosin 2-3, silane resin acceptor kh-550 1-2, nano molybdenum disulfide 0.2-0.3, polystyrene 5-8, potassium tartrate 0.2-0.4, nano micro crystal cellulose 1-2, softex kw 0.6-0.8, water 30-40.

2. the preparation method of the efficient degreasing composite filtering material of a kind of sewage disposal fusion-jetting polypropylene mixing modification sepiolite as claimed in claim 1, is characterized in that, comprise following steps:

(1) first potassium tartrate, softex kw and nanometer anion powder are dropped in water, be stirred to after dissolving dispersion completely, sepiolite powder is dropped in solution, soak 1-2h, add nano micro crystal cellulose, charing crop powder of straw subsequently again, high-speed stirred mixing 40-50min, subsequently by gained mixed material heated-air drying, remove moisture completely, be broken into 400-600 order micro mist for subsequent use;

(2) polypropylene is mixed with polyamide wax micropowder, rosin, polystyrene, nano molybdenum disulfide, stir in rear input double screw extruder and melt extrude granulation at 180-190 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.