Modified liquid for filter paper of filter and its preparation method and use

Abstract

The invention relates to a filter paper modified liquid for a filter and the preparing method and use thereof, comprising phenylpropyl latex or organic silicone acrylic acid 4-20 weight shares, melamine 1-4 weight shares, and solvent 24-78.9 weight shares, where the solvent is any one of the water, deionized water, alcohol and isopropanol; also comprising Teflon latex 15-35 weight shares; further able to comprise micrometer or nanometer titanium dioxide particles 1-10 weight shares, and NP-13 0.1-2 weight shares; and able to the filtering performance and service life of the filter paper of the filter. And the making method is the traditional mixing method. and the use: adopting traditional methods spraying and dipping to form a film layer on each side of the filter paper, then keeping temperature at 110-130DEG C for 1.5-2min, thus able to obtain two layers of modified films on the filter paper, which can help improve filtering efficiency and service life of the filter.

Description

technical field [0001] The present invention relates to a modified liquid, more specifically, the present invention relates to a filter paper modified liquid, and at the same time, the present invention also relates to a preparation method and application of the filter paper modified liquid. technical background [0002] Filters (including air filters, diesel filters, and oil filters) are important parts of the engine. Both are referred to as particles) to reduce the wear of engine cylinder liner piston rings, crankshaft connecting rod kinematic pair and high-pressure oil pump plunger couple, optimize the combustion process of the engine, and reduce the emission of carbon monoxide, nitrogen oxides, hydrocarbons and other pollutants . With the implementation of engine emission regulations (Euro II, Euro III), the engine puts forward higher supporting requirements for the filter efficiency and other indicators of the filter. [0003] Generally, the filter-type trapping princ...

AI Technical Summary

Problems solved by technology

[0007] Due to the disordered arrangement of filter paper fibers during the manufacturing process of filter paper, some large and irregular holes appear between the filter paper fibers, making it easy for particles with larger particle sizes to pass through. Compared with foreign filter paper manufacturers in terms of equipment, production process, and finishing and curing materials, there are obvious gaps. Therefore, domestic filter paper has low filtration performance, short service life, and the quality of each batch of filter paper is not stable enough. There are obvious problems such as local cloud spots (that is, local uneven thickness), which largely restricts the improvement of filter filtration efficiency, and even affects the improvement of engine performance, which cannot meet the increasing requirements of the engine. Require

[0008] In addition, as far as the applicant knows, there is currently no product in China that can modify filter paper to improve its filtration performance and service life.

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