CN109596458B - Rapid detection system and detection method for low permeability of permeable membrane - Google Patents
Rapid detection system and detection method for low permeability of permeable membrane Download PDFInfo
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- CN109596458B CN109596458B CN201910080127.1A CN201910080127A CN109596458B CN 109596458 B CN109596458 B CN 109596458B CN 201910080127 A CN201910080127 A CN 201910080127A CN 109596458 B CN109596458 B CN 109596458B
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- air
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- timer
- test cup
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 230000035699 permeability Effects 0.000 title claims abstract description 10
- 239000012528 membrane Substances 0.000 title description 5
- 238000003860 storage Methods 0.000 claims abstract description 53
- 238000009423 ventilation Methods 0.000 claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 35
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012031 short term test Methods 0.000 claims description 2
- 238000005056 compaction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 238000010227 cup method (microbiological evaluation) Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Dispersion Chemistry (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to a low-permeability film ventilation quantity rapid detection system and a detection method, wherein the system comprises an air compressor, an electromagnetic valve, a gas storage bottle, a digital pressure controller, a timer and a test cup, wherein the digital pressure controller is arranged on the gas storage bottle, the gas storage bottle is respectively communicated with the air compressor and the test cup through a gas pipe and controlled by the electromagnetic valve, the timer is respectively connected with the digital pressure controller and the electromagnetic valve through wires, and a piece of ventilation film is taken at a ventilation film production site and put between an upper cover and a lower cover of the test cup for compaction; starting an air compressor and opening an electromagnetic valve to charge air into the air storage bottle so that the pressure of the air storage bottle reaches two atmospheric pressures of preset pressure; stopping inflating, then starting to release pressure to the test cup by the gas storage bottle, starting to count by the timer at the same time, stopping releasing the gas when the pressure of the gas storage bottle is released to a preset atmospheric pressure, and automatically recording the pressure release delay time by the timer; and (3) according to the test time, finding out the corresponding air permeability value in the comparison table to obtain the air permeability of the sample.
Description
Technical Field
The invention relates to the technical field of ventilation capacity detection equipment of a ventilation film, in particular to a rapid detection system and a detection method for ventilation capacity of a low-permeability film.
Background
Breathable films are a breathable plastic film material that is breathable and impermeable to water, and sanitary materials that are often used in people's lives such as: diaper, diaper's inside lining, operating gown etc., the low ventilative function of this kind of material is constantly applied to the warm baby trade in recent years, and different warm babies need adopt the ventilated membrane of different ventilation capacities, and current ventilated membrane ventilation capacity's detection mode has two kinds: one is to check the air permeability of the film or composite film material with good barrier property, such as an oxygen permeable instrument and a moisture permeable instrument, and the detection range is very small; one is for a large ventilation detector, such as: the detection range of the detector for the ventilation amount of the ventilation materials such as non-woven fabrics is more than 3000 g/square meter 24h, the detection range of the detector is not suitable for the detection of the ventilation film with low ventilation amount, the detection of the ventilation film with the ventilation amount within the range of 50-1500 g/square meter 24h is performed by the GB/T-12704.2 standard of the moisture-permeable cup method in the prior art, but the detection time of the method is long, and the on-line detection of industrial production cannot be performed.
Disclosure of Invention
In order to solve the above problems, the present invention provides a rapid detection system and detection method for low permeability of a film
The specific contents are as follows: the utility model provides a low ventilative volume short-term test system of penetrating film, this system includes air compressor, solenoid valve, gas bomb, digital pressure control appearance, time-recorder and test cup, its characterized in that: the air compressor is communicated with the air storage bottle through an air pipe, an electromagnetic valve A is communicated on the air pipe between the air compressor and the air storage bottle, the air storage bottle is communicated with the test cup through the air pipe, an electromagnetic valve B is communicated on the air pipe between the air storage bottle and the test cup, the digital pressure controller is arranged on the bottle opening of the air storage bottle, the electromagnetic valve A and the electromagnetic valve B are respectively connected with the digital pressure controller through wires, and the timer is respectively connected with the electromagnetic valve A, the electromagnetic valve B and the digital pressure controller through wires.
Preferably, the air compressor and the timer are both connected with a power supply.
Preferably, a control switch K1 is arranged on a wire between the electromagnetic valve A and the digital pressure controller, and a control switch K2 is arranged on a wire between the electromagnetic valve B and the digital pressure controller.
Preferably, the test cup comprises a cup body with an opening at the upper end and an annular pressing upper cover.
The detection method using the low-permeability film ventilation quantity rapid detection system comprises the following specific steps:
① A piece of breathable film to be detected is taken, the breathable film is flatly paved and covered on the cup opening of the test cup, and is compressed by a compression upper cover;
② The timer and the air compressor are powered on, the air compressor is started, the control switch K1 is closed, the electromagnetic valve A is opened at the moment, the air pipe between the air compressor and the air storage bottle is connected, and the air compressor charges air into the air storage bottle;
③ When the air pressure in the air storage bottle is monitored through the digital pressure controller and reaches the preset two atmospheres, the electromagnetic valve A is closed, the timer is started, the control switch K2 is closed, and the electromagnetic valve B is opened to connect the air pipe between the air storage bottle and the test cup;
④ The air in the air storage bottle starts to discharge air into the test cup for pressure relief, and the timer starts to count time, and the discharged air passes through the test cup and is discharged through the breathable film to be detected;
⑤ When the air pressure in the air storage bottle is monitored to be released to a preset atmospheric pressure through the digital pressure controller, the timer stops timing and closes the electromagnetic valve B, and the timer records the time delay required by the air storage bottle when the air pressure is released from two atmospheres to one atmosphere;
⑥ And recording and displaying the delay time according to the timer, and searching out the ventilation quantity value corresponding to the delay time by comparing with the standard table, namely the ventilation quantity of the ventilation film to be detected.
The beneficial technical effects of the invention
The invention relates to a rapid detection system and a detection method for low ventilation film ventilation quantity, wherein the system comprises an air compressor, an electromagnetic valve, a gas storage bottle, a digital pressure controller, a timer and a test cup, wherein the digital pressure controller is arranged on the gas storage bottle, the gas storage bottle is respectively communicated with the air compressor and the test cup through a gas pipe and controlled by the electromagnetic valve, the timer is respectively connected with the digital pressure controller and the electromagnetic valve through wires, and a ventilation film is taken at a ventilation film production site and put between an upper cover and a lower cover of the test cup for compaction; starting an air compressor and opening an electromagnetic valve to charge air into the air storage bottle so that the pressure of the air storage bottle reaches two atmospheric pressures of preset pressure; stopping inflating, then starting to release pressure to the test cup by the gas storage bottle, starting to count by the timer at the same time, stopping releasing the pressure when the pressure of the gas storage bottle is released to the preset atmospheric pressure, and automatically recording the pressure release delay time by the timer; the corresponding ventilation quantity value is found in the comparison table according to the test time to obtain the ventilation quantity of the sample.
Drawings
FIG. 1 is a system diagram of a low permeance membrane ventilation rapid detection system;
FIG. 2 is a table of standard comparison of partial delay times;
In the figure: 1. air compressor, timer 3, digital pressure controller, 4, gas cylinder, 5, cup of test cup, 6, pressing upper cover, 7, solenoid valve B, 8, solenoid valve A, 9, air pipe, 10, control switch K2, 11, control switch K1, 12, wire, 13, ventilation film to be detected.
Detailed Description
In the first embodiment, for the breathable films with the breathable amount within the range of 50-1500 g/square meter.24h, the accurate breathable values of the breathable films with different breathable amounts are detected according to the standard of the moisture permeable cup method GB/T-12704.2, and then according to the breathable films with known accurate breathable amounts, the time delay required for pressure release from two atmospheres to one atmosphere in the detection system is detected, wherein the time delay corresponds to the breathable films with the corresponding breathable amounts, and the time delay of the breathable films with different accurate breathable amounts are respectively detected to form a standard comparison table.
Referring to fig. 1-2, a quick detecting system for low permeability film and air permeability comprises an air compressor, an electromagnetic valve, an air storage bottle, a digital pressure controller, a timer and a test cup, wherein the air compressor is communicated with the air storage bottle through an air pipe, the air compressor is used as an air source of the air storage bottle, the air pipe between the air compressor and the air storage bottle is communicated with the electromagnetic valve A, the air storage bottle is communicated with the test cup through the air pipe, the air pipe between the air storage bottle and the test cup is communicated with the electromagnetic valve B, the digital pressure controller is arranged on a bottle opening of the air storage bottle, the electromagnetic valve A and the electromagnetic valve B are respectively connected with the digital pressure controller through wires, the digital pressure controller monitors the air pressure of the air storage bottle and simultaneously controls the electromagnetic valve A and the electromagnetic valve B, and the timer is respectively connected with the electromagnetic valve A, the electromagnetic valve B and the digital pressure controller through wires.
The air compressor and the timer are connected with a power supply, and the timer supplies power to the digital pressure controller, the electromagnetic valve A and the electromagnetic valve B.
The lead between the electromagnetic valve A and the digital pressure controller is provided with a control switch K1, and the lead between the electromagnetic valve B and the digital pressure controller is provided with a control switch K2.
The test cup comprises a cup body with an opening at the upper end and an annular compression upper cover, and the ventilation film to be detected is compressed through the compression upper cover.
Referring to fig. 1-2, a detection method of the low permeability film ventilation rapid detection system according to the first embodiment comprises the following specific steps:
① A piece of breathable film to be detected is taken, the breathable film is flatly paved and covered on the cup opening of the test cup, and is compressed by a compression upper cover;
② The timer and the air compressor are powered on, the air compressor is started, the control switch K1 is closed, the electromagnetic valve A is opened at the moment, the air pipe between the air compressor and the air storage bottle is connected, and the air compressor charges air into the air storage bottle;
③ When the air pressure in the air storage bottle is monitored through the digital pressure controller and reaches the preset two atmospheres, the electromagnetic valve A is closed, the timer is started, the control switch K2 is closed, and the electromagnetic valve B is opened to connect the air pipe between the air storage bottle and the test cup;
④ The air in the air storage bottle starts to discharge air into the test cup for pressure relief, and the timer starts to count time, and the discharged air passes through the test cup and is discharged through the breathable film to be detected;
⑤ When the air pressure in the air storage bottle is monitored to be released to a preset atmospheric pressure through the digital pressure controller, the timer stops timing and closes the electromagnetic valve B, and the timer records the time delay required by the air storage bottle when the air pressure is released from two atmospheres to one atmosphere;
⑥ And recording and displaying the delay time according to the timer, and searching out the ventilation quantity value corresponding to the delay time by comparing with the standard table, namely the ventilation quantity of the ventilation film to be detected.
Claims (2)
1. The utility model provides a low ventilative volume short-term test system of penetrating film, this system includes air compressor, solenoid valve, gas bomb, digital pressure control appearance, time-recorder and test cup, its characterized in that: the air compressor is communicated with the air storage bottle through an air pipe, an electromagnetic valve A is communicated with the air pipe between the air compressor and the air storage bottle, the air storage bottle is communicated with the test cup through the air pipe, an electromagnetic valve B is communicated with the air pipe between the air storage bottle and the test cup, the digital pressure controller is arranged on the bottle mouth of the air storage bottle, the electromagnetic valve A and the electromagnetic valve B are respectively connected with the digital pressure controller through wires, and the timer is respectively connected with the electromagnetic valve A, the electromagnetic valve B and the digital pressure controller through wires;
the air compressor and the timer are connected with a power supply;
A control switch K1 is arranged on a wire between the electromagnetic valve A and the digital pressure controller, and a control switch K2 is arranged on a wire between the electromagnetic valve B and the digital pressure controller;
the test cup comprises a cup body with an opening at the upper end and an annular pressing upper cover.
2. A detection method using the low permeability film ventilation rapid detection system of claim 1, comprising the following specific steps:
① A piece of breathable film to be detected is taken, the breathable film is flatly paved and covered on the cup opening of the test cup, and is compressed by a compression upper cover;
② The timer and the air compressor are powered on, the air compressor is started, the control switch K1 is closed, the electromagnetic valve A is opened at the moment, the air pipe between the air compressor and the air storage bottle is connected, and the air compressor charges air into the air storage bottle;
③ When the air pressure in the air storage bottle is monitored through the digital pressure controller and reaches the preset two atmospheres, the electromagnetic valve A is closed, the timer is started, the control switch K2 is closed, and the electromagnetic valve B is opened to connect the air pipe between the air storage bottle and the test cup;
④ The air in the air storage bottle starts to discharge air into the test cup for pressure relief, and the timer starts to count time, and the discharged air passes through the test cup and is discharged through the breathable film to be detected;
⑤ When the air pressure in the air storage bottle is monitored to be released to a preset atmospheric pressure through the digital pressure controller, the timer stops timing and closes the electromagnetic valve B, and the timer records the time delay required by the air storage bottle when the air pressure is released from two atmospheres to one atmosphere;
⑥ And recording and displaying the delay time according to the timer, and searching out the ventilation quantity value corresponding to the delay time by comparing with the standard table, namely the ventilation quantity of the ventilation film to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910080127.1A CN109596458B (en) | 2019-01-28 | 2019-01-28 | Rapid detection system and detection method for low permeability of permeable membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910080127.1A CN109596458B (en) | 2019-01-28 | 2019-01-28 | Rapid detection system and detection method for low permeability of permeable membrane |
Publications (2)
| Publication Number | Publication Date |
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| CN109596458A CN109596458A (en) | 2019-04-09 |
| CN109596458B true CN109596458B (en) | 2024-04-30 |
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| CN201910080127.1A Active CN109596458B (en) | 2019-01-28 | 2019-01-28 | Rapid detection system and detection method for low permeability of permeable membrane |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110068519B (en) * | 2019-05-25 | 2024-04-26 | 沧州高大宏业塑料制品有限公司 | Pressure tester for inner plug of ventilation rubber tube |
| CN111398123B (en) * | 2020-04-08 | 2021-06-11 | 佛山市奥启薄膜科技有限公司 | Device for detecting microporous breathable material |
| CN113155705A (en) * | 2021-04-29 | 2021-07-23 | 上海紫华薄膜科技有限公司 | Film air permeability testing device and testing method |
| JP2023089696A (en) * | 2021-12-16 | 2023-06-28 | キオクシア株式会社 | Measurement method and measurement device |
| CN114281120B (en) * | 2021-12-27 | 2024-03-26 | 北京北方华创微电子装备有限公司 | Semiconductor process equipment and chamber pressure control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1519186A1 (en) * | 2003-09-27 | 2005-03-30 | Bayerische Motoren Werke Aktiengesellschaft | Test method and apparatus for air-permeable materials |
| CN102445312A (en) * | 2011-10-09 | 2012-05-09 | 北京化工大学 | Testing apparatus for plastic airtightness and method thereof |
| CN102628785A (en) * | 2012-03-27 | 2012-08-08 | 济南兰光机电技术有限公司 | Gas permeability test device |
| CN102798586A (en) * | 2012-08-30 | 2012-11-28 | 源达日化(天津)有限公司 | Novel testing system for testing air permeability of micro air-permeable film |
| CN105717022A (en) * | 2016-01-29 | 2016-06-29 | 广州标际包装设备有限公司 | Differential-pressure-method gas transmittance tester |
| CN106769777A (en) * | 2017-01-19 | 2017-05-31 | 智能（厦门）传感器有限公司 | The ventilative amount detecting device and detection method of a kind of ventilated membrane |
| CN207280916U (en) * | 2017-10-15 | 2018-04-27 | 湖北普爱药业有限公司 | A kind of patche air permeability detector |
| CN209673588U (en) * | 2019-01-28 | 2019-11-22 | 河南核信恒达实业有限公司 | A kind of low permeable membrane Air permenbility rapid detection system |
-
2019
- 2019-01-28 CN CN201910080127.1A patent/CN109596458B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1519186A1 (en) * | 2003-09-27 | 2005-03-30 | Bayerische Motoren Werke Aktiengesellschaft | Test method and apparatus for air-permeable materials |
| CN102445312A (en) * | 2011-10-09 | 2012-05-09 | 北京化工大学 | Testing apparatus for plastic airtightness and method thereof |
| CN102628785A (en) * | 2012-03-27 | 2012-08-08 | 济南兰光机电技术有限公司 | Gas permeability test device |
| CN102798586A (en) * | 2012-08-30 | 2012-11-28 | 源达日化(天津)有限公司 | Novel testing system for testing air permeability of micro air-permeable film |
| CN105717022A (en) * | 2016-01-29 | 2016-06-29 | 广州标际包装设备有限公司 | Differential-pressure-method gas transmittance tester |
| CN106769777A (en) * | 2017-01-19 | 2017-05-31 | 智能（厦门）传感器有限公司 | The ventilative amount detecting device and detection method of a kind of ventilated membrane |
| CN207280916U (en) * | 2017-10-15 | 2018-04-27 | 湖北普爱药业有限公司 | A kind of patche air permeability detector |
| CN209673588U (en) * | 2019-01-28 | 2019-11-22 | 河南核信恒达实业有限公司 | A kind of low permeable membrane Air permenbility rapid detection system |
Non-Patent Citations (1)
| Title |
|---|
| 高分子选择性透气膜的透气性测定方法的比较;李路平;甘肃工业大学学报(第02期);全文 * |
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Inventor after: Yao Rui Inventor after: Wang Hexi Inventor after: Wang Cunliang Inventor after: Sun Yanlong Inventor after: Zhang Lili Inventor before: Yao Rui Inventor before: Wang Hexi Inventor before: Wang Chunliang Inventor before: Sun Yanlong Inventor before: Zhang Lili |
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