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A Prediction Method of Air Permeability of Filter Paper

A prediction method and air permeability technology, which is applied in the fields of measuring devices, permeability/surface area analysis, suspension and porous material analysis, etc., and can solve the problems of early prediction of air permeability of difficult filter paper products, etc.

Active Publication Date: 2021-09-14
SHANDONG RENFENG SPECIAL MATERIALS
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for predicting the air permeability of filter paper aimed at the technical defects of the prior art, so as to solve the technical problem in the prior art that it is difficult to predict the air permeability of the finished filter paper product in advance according to the properties of the slurry

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  • A Prediction Method of Air Permeability of Filter Paper
  • A Prediction Method of Air Permeability of Filter Paper
  • A Prediction Method of Air Permeability of Filter Paper

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Embodiment Construction

[0032] Specific embodiments of the present invention will be described in detail below. In order to avoid too many unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. Approximate language used in the following examples is for quantitative representations, indicating that certain variations in quantities are permissible without altering essential function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0033] A method for predicting air permeability of filter paper, comprising:

[0034] 1) Calculate the air permeability of the product to be predicted as a quantitatively by formula 1:

[0035] x a =W 1 f 1 +W 2 f 2 +…+W n f n

[0036] Formula 1

[0037] In formula 1,

[0038] x a : air permeability of the product to be predicted with quantitative ...

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Abstract

The invention provides a method for predicting the air permeability of filter paper. The technical solution will be used to prepare each slurry of the product to be predicted, separately prepare filter paper, and detect its air permeability; The predicted value under a specific quantitative value; and then corrected according to the multiplying relationship between the quantitative values ​​to obtain the final predicted value. The invention can preliminarily calculate the required product ratio through a small amount of tests, and then optimize it through small-scale tests, which greatly reduces the workload of product research and development; when the invention is applied to the production transformation stage, it can pass the preliminary detection. Quantitative and air permeability evaluation of the air permeability of the product after the target quantification is achieved, so that it can be predicted in advance whether the fine grinding needs to be adjusted, which shortens the time for production modification and reduces production waste.

Description

technical field [0001] The invention relates to the technical field of filter paper performance evaluation, in particular to a method for predicting the air permeability of filter paper. Background technique [0002] Filter paper is a kind of functional paper, which plays the role of filter material through the micropores formed by its internal fibers, and is widely used in various biochemical experiments and industrial production. The performance of filter paper has a direct impact on its filtration effect. Its performance is mainly divided into two aspects, one is the filtration characteristics of filter paper, and the other is physical characteristics; filtration characteristics include air permeability, maximum pore size, and average pore size. Physical properties include quantitative , thickness, stiffness, burst resistance, resin content, etc. [0003] Air permeability refers to the amount of air passing through the filter paper per unit time under a certain area and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
CPCG01N15/08
Inventor 吕建莉宋佃凤
Owner SHANDONG RENFENG SPECIAL MATERIALS
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