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A kind of PBS/PP two-component melt-blown fiber filter material and its manufacturing method

A technology of filter material and melt-blown fiber, applied in the field of PBS/PP bi-component melt-blown fiber filter material and its manufacturing, can solve the problems of poor structural endurance, uneven size of gap, low filtration efficiency, etc., and achieve increased stretching Strength and elongation at break, effect of increasing impact strength and elastic modulus, increasing filter area and dirt holding capacity

Active Publication Date: 2022-03-22
QINGDAO ZHONGYA ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the main two-component melt-blown fiber nonwoven fabric on the market is PLA fiber and PP fiber bonded into a mesh cloth. There are problems such as poor distribution uniformity between fibers, resulting in uneven gap size and poor structural endurance. They exist in sewage treatment, etc. In terms of application, there are many shortcomings such as low filtration efficiency. When using the existing two-component melt-blown fiber non-woven fabric as the filter material, it is easy to cause filter layer hardening and partial current short circuit, resulting in the failure of the filter equipment to work normally. The filter material needs to be replaced. It is cumbersome and expensive; the filter material is often not rinsed thoroughly in the filter equipment, resulting in unqualified water produced by the filter equipment, which affects the stable operation of the subsequent system, and because the filter material in the filter equipment is not easy to rinse, this makes the filter material in the process The waste water is time-consuming when stirring and backwashing, and the backwashing water accounts for 3%-5% of the produced water ratio, which consumes a lot of water and seriously wastes water resources

Method used

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  • A kind of PBS/PP two-component melt-blown fiber filter material and its manufacturing method
  • A kind of PBS/PP two-component melt-blown fiber filter material and its manufacturing method
  • A kind of PBS/PP two-component melt-blown fiber filter material and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the process of manufacturing the PBS / PP two-component meltblown fiber filter material is:

[0026] PBS melt: The PBS raw material was dried at 100 ° C for 2 hours, and then the PBS feedstock and the PBS aid were mixed according to the mass percentage of 96.8: 3.2, and then input to the corresponding set of screw extruders, at 190 ° C The lower melt was melted to obtain a PBS melt, and the PBS melt was filtered through a melt filter corresponding to its correspondingly set, and then metered again;

[0027] Preparation of PP melt: Mix the PP feedstock to the PP auxiliary by mass of 99.2: 0.8, and then input to a correspondingly set screw extruder, melt in 270 ° C to obtain a PP melt, and the PP melt has passed The corresponding melt filter is filtered, and then measuring it by the corresponding metering pump;

[0028] The PBS melt and the PP melt obtained above were mixed according to the mass percentage of PBS: PP of 30:70, and then input to the ...

Embodiment 2

[0031] Such as figure 1 As shown, the process of manufacturing the PBS / PP two-component meltblown fiber filter material is:

[0032]PBS melt: The PBS feedstock was dried at 80 ° C for 3 hours, and then the PBS feedstock and the PBS aid were mixed according to the mass percentage of 96: 4, and then input to the corresponding set of screw extruders, at 220 ° C The lower melt was melted to obtain a PBS melt, and the PBS melt was filtered through a melt filter corresponding to its correspondingly set, and then metered again;

[0033] Preparation of PP melt: Mix the PP feedstock to the PP additive in accordance with the mass percentage of 99: 1, and then enter the corresponding set of screw extruders, melting at 250 ° C to obtain a PP melt, and the PP melt has passed The corresponding melt filter is filtered, and then measuring it by the corresponding metering pump;

[0034] The above-mentioned PBS melt and the PP melt were mixed according to the mass percentage of the PBS: PP of 50:...

Embodiment 3

[0037] Such as figure 1 As shown, the process of manufacturing the PBS / PP two-component meltblown fiber filter material is:

[0038] PBS melt: The PBS raw material was dried at 85 ° C for 3 hours, and then the PBS feedstock and the PBS aid were mixed according to the mass percentage of 96.5: 3.5, and then input to a correspondingly set screw extruder, at 200 ° C. The lower melt was melted to obtain a PBS melt, and the PBS melt was filtered through a melt filter corresponding to its correspondingly set, and then metered again;

[0039] Preparation of PP melt: Mix the PP feedstock to the PP additive in accordance with the mass percentage of 99: 1, and then enter the corresponding set of screw extruders, melting at 250 ° C to obtain a PP melt, and the PP melt has passed The corresponding melt filter is filtered, and then measuring it by the corresponding metering pump;

[0040] The above-mentioned PBS melt and PP melt were mixed according to the mass percentage of the PBS: PP of 40...

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Abstract

The invention discloses a PBS / PP two-component melt-blown fiber filter material and a manufacturing method thereof. The fineness range of the filter material is 0.8-10 μm, and the average fineness is 4-6 μm; the thickness of the filter material is 100±2mm, and the Die-cut block filter material with multiple square holes, the filter material has a pore diameter of 5-70μm, a porosity of 90-95%, and a specific surface area of ​​8000m 2 / m 3 , dirt rate (9‑11) Kg‑SS / m 3 , the manufacturing method of filter material makes filter material through multiple steps; The invention provides a kind of PBS / PP two-component melt-blown fiber filter material and its manufacturing method, and this manufacturing method has technological process short, and preparation process is controllable, The advantage of energy saving; the obtained filter material has three-dimensional pores inside, which can intercept, absorb and filter impurities of different sizes, which not only increases its filtration area and dirt holding capacity, but also has high strength, ensuring filtration The material has the advantages of strong filterability, good filtration effect, durability, good hydrophilicity and water drainage, easy reverse flushing, water saving and high efficiency.

Description

Technical field [0001] The present invention relates to a filter material and method, and more particularly to a PBS / PP two-component meltblown fiber filter material and a method of producing thereof. Background technique [0002] The meltblown non-woven fabric is to melt the high polymer slice through the screw extruder, and eject it into a fibrous shape through the spinneutum hole, and the spray blowing of the high-speed hot air flow is strongly stretched to form a pole Fine fibers, these fibers are directly incomed with a messy net. The meltblown fiber has a large specific surface area and a small void is large, and it is an excellent thermal insulation and filtration material. [0003] In the field of filter materials, all of the meltblow filter materials currently used are PP single-component fibers. After the residential treatment, the filtration efficiency can reach 99.99%, but the power is low, the filter resistance is not efficient. The requirements of filtering materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/16D04H1/56D04H1/4382D01D5/098
CPCB01D39/1623D04H1/56D04H1/4382D01D5/0985B01D2239/10B01D2239/0622B01D2239/1208B01D2239/1225B01D2239/1291
Inventor 苏效忠朱珍杰
Owner QINGDAO ZHONGYA ENVIRONMENTAL ENG
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