Method for sampling air permeability of electronic glass fiber cloth
A glass fiber cloth and air permeability technology, which is applied in the field of fiber manufacturing, can solve the problems of insufficient stability and accuracy of experimental data, and achieve the effect of avoiding errors, avoiding wrinkles, and being convenient to use.
Pending Publication Date: 2021-06-22
LINZHOU GUANGYUAN NEW MATERIAL TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method for sampling the air permeability of electronic glass fiber cloth to solve the problem that the experimental data of the air permeability of electronic glass fiber cloth is not stable enough and accurate in the prior art
Method used
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Embodiment 1
[0028] This embodiment provides an electronic fiberglass venting gas sample method, including the following steps:
[0029] Step one, collect the sample; figure 1 As shown, the glass fiber cloth in-to-produced is in the end of the end around a week, and then the length is 50-70 cm in the direction of the direction of the direction of the detection zone, labeled the weft, first fixed detection area. On the edge, then cut from the weft, the part cut off is used as a sample, standby;
[0030] Step II. Samples step two; put the sample selected from the selected step into the storage box, close the sample information after the storage box; the sample information contained in the sample information includes the production date, any of the production batch Or two combinations, but are not limited thereto;
[0031] Step three, send the sample; send step two to the sample to feed into the detection room to prevent external factors from disturbing, avoiding the influential performance of th...
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The invention provides a method for sampling the air permeability of electronic glass fiber cloth. The method comprises the steps of 1, collecting and sampling, and selecting a sample for standby application after glass fiber cloth in production is subjected to cropping; 2, sorting the sample, flatly placing the sample selected in the step 1 in a storage box, and pasting a sample information sheet after the storage box is closed; 3, sending a sample, feeding the sample sorted in the step 2 into a detection chamber; 4, conducting sample testing pretreatment, and putting the sample sent into the detection chamber in the step 3 into a constant-temperature and constant-humidity environment for treatment; 5, testing, specifically, testing after the test pretreatment of the sample in the step 4 is finished. According to the invention, the sample is flatly put into the detection chamber, so that errors caused by sample bending can be avoided; after the glass fiber cloth to be produced is subjected to cropping, the end part of the glass fiber cloth is surrounded by a circle and cut off, so that errors caused by wrinkles of the cloth tail and the cloth cover can be prevented; the edge of the detection area is firstly fixed, and cutting is conducted from the weft, so that the sample can be prevented from wrinkling in the cutting process.
Description
Technical field [0001] The present invention relates to the field of fiber manufacturing techniques, and more particularly to an electron fiberglass permeability sampling method. Background technique [0002] The electronic fiberglass is woven from the electronic grade E glass fiber yarn, since it has the characteristics of fire resistance, waterproof, aging, weather resistance, high strength, high modulus, etc., is widely used. Epoxy copper and electrical insulation products, printed circuit boards, fire boards, insulating panels, aerospace, military fields, etc. [0003] Electronic glass fiber cloth gas permeability determines the importance of substrate (CCL) and printed circuit board (PCB), so the stability, reliability and accuracy of electronic fiberglass ventilation performance experimental data is particularly important. [0004] However, the existing experimental data of the existing electronic fiber cloth gas permeability is not stable, accurate, affecting the important...
Claims
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IPC IPC(8): G01N15/08G01N1/04G01N1/28
CPCG01N15/08G01N1/04G01N1/286
Inventor 张文超陶应龙代义飞
Owner LINZHOU GUANGYUAN NEW MATERIAL TECH