Title:
PREPARATION METHOD FOR HIGH-FLUX PP MELT BLOWN NANOPOROUS FOLDED LIQUID FILTERING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/216809
Kind Code:
A1
Abstract:
A preparation method for a high-flux PP melt blown nanoporous folded liquid filtering material, belonging to the technical field of liquid filtering materials. The preparation method comprises: preparing a mixture, jetting filaments, carrying out hot air blowing, forming a mesh, carrying out surface treatment, and carrying out calendaring. When preparing the mixture, polypropylene resin, high-surface-energy particles and inductive nanoparticles are uniformly mixed to obtain the mixture, the mass ratio of the polypropylene resin to the high-surface-energy particles to the inductive nanoparticles being 100-110:5-8:3-5. The preparation method can improve the fold-forming stability, dirt-holding capacity and service life of the liquid filtering material, and also can increase the filtering efficiency of 1-2 μm particles.
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Inventors:
HUANG WENSHENG (CN)
LIU YUJIA (CN)
XIE GUODONG (CN)
ZHANG WEIDONG (CN)
SUN SONG (CN)
LI KAI (CN)
SUN WEIFENG (CN)
FAN XIAOJIE (CN)
LIU YUJIA (CN)
XIE GUODONG (CN)
ZHANG WEIDONG (CN)
SUN SONG (CN)
LI KAI (CN)
SUN WEIFENG (CN)
FAN XIAOJIE (CN)
Application Number:
PCT/CN2023/088577
Publication Date:
November 16, 2023
Filing Date:
April 17, 2023
Export Citation:
Assignee:
DONGYING JOFO FILTRATION TECHNOLOCY CO LTD (CN)
International Classes:
D04H1/544; B01D39/08; D01F1/10; D01F6/46; D04H1/56; D06C15/00; D06M10/00
Domestic Patent References:
| WO2016078366A1 | 2016-05-26 |
Foreign References:
| CN113842707A | 2021-12-28 | |||
| CN114934355A | 2022-08-23 | |||
| CN114086323A | 2022-02-25 | |||
| CN111068404A | 2020-04-28 | |||
| US20210187428A1 | 2021-06-24 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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