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

A filter and modified liquid technology, applied in the field of modified liquid, can solve problems such as short service life, filter paper modification treatment, local cloud spots, etc., to improve filtration performance and service life, improve product quality, and use equipment. less effect

Inactive Publication Date: 2006-09-13
BENGBU HAOYE FILTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] After adding 78.9 grams of water to 20 grams of styrene-acrylic emulsion for dilution, add 4 grams of melamine and stir evenly (continuous stirring for 3 minutes), then add 35 grams of polytetrafluoroethylene emulsion and stir uniformly (continuous stirring 3min), and finally, add 10 grams of 10nm titanium dioxide particles and 2 grams of nonylphenol ethoxylate-13, and stir evenly (continuous stirring for 3min), to obtain the filter paper modified liquid of the present invention.

[0041] The filter paper modified liquid prepared by the above method will not deteriorate after sealed storage for one year, and the dynamic viscosity is about 260mPa·s, which is convenient for modifying the filter paper by spraying and dipping.

Embodiment 2

[0043] After adding 51 grams of ethanol to 12 grams of styrene-acrylic emulsion for dilution, add 2 grams of melamine and stir well (continuous stirring for 3 min), then add 25 grams of polytetrafluoroethylene emulsion and stir uniformly (continuous stirring 3min), and finally, add 5 grams of 18nm titanium dioxide particles and 1 gram of nonylphenol ethoxylate-13, and stir evenly (continuous stirring for 3min), to obtain the filter paper modified liquid of the present invention.

[0044] The filter paper modified liquid prepared by the above method will not deteriorate after sealed storage for one year, and its dynamic viscosity is about 280mPa·s. It is convenient to modify the filter paper by two traditional methods of spraying and dipping.

Embodiment 3

[0046] After adding 24 grams of isopropanol to 4 grams of silicone acrylic emulsion for dilution, add 1 gram of melamine and stir evenly (continuous stirring for 3 minutes), then add 15 grams of polytetrafluoroethylene emulsion and stir evenly (continuous stirring for 3 minutes), finally, add 1 gram of 1 μm titanium dioxide particles, 0.1 gram of nonylphenol polyoxyethylene ether-13, and stir evenly (continuous stirring for 3 minutes), the filter paper modified liquid of the present invention can be obtained .

[0047] The filter paper modified liquid prepared by the above method will not deteriorate after sealed storage for one year, and its dynamic viscosity is about 300mPa·s. It is convenient to modify the filter paper by two traditional methods of spraying and dipping.

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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...

Claims

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Application Information

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IPC IPC(8): D21H21/14D21H17/03D21H17/07D21H17/13D21H17/05D21H17/69D21H27/28
Inventor 邹宜哲方雯
Owner BENGBU HAOYE FILTER
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