CN207051159U - A kind of reusable gas permeation rate reference membrane - Google Patents
A kind of reusable gas permeation rate reference membrane Download PDFInfo
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- CN207051159U CN207051159U CN201721046038.8U CN201721046038U CN207051159U CN 207051159 U CN207051159 U CN 207051159U CN 201721046038 U CN201721046038 U CN 201721046038U CN 207051159 U CN207051159 U CN 207051159U
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- aluminium foil
- gas permeation
- permeation rate
- reference membrane
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Abstract
A kind of reusable gas permeation rate reference membrane is the utility model is related to, belongs to Measuring and Testing Technologies and Instruments field.Reference membrane includes aluminium foil and film.Described aluminium foil is provided with manhole, and side is aluminium foil surface, and side is viscose face, and film is brought into close contact between two layers of aluminium foil by viscose face with aluminium foil.The utility model is by designing the gas permeation rate reference membrane with different perforated areas, the Quality Control measurement of the gas permeation rate tester such as OTR oxygen transmission rate and moisture-vapor transmission can be realized, and the reference membrane may be reused, be advantageous to the reproduction of measurement result, and reduce the measurement error brought by material homogeneity.With it is simple in construction, easy to operate, applied widely the advantages of.
Description
Technical field
A kind of reusable gas permeation rate reference membrane is the utility model is related to, belongs to Measuring and Testing Technologies and Instruments
Field.
Background technology
Gas permeation rate refers under steady temperature and unit pressure difference, in stable pass through, through examination in the unit interval
The volume of the gas of sample unit area, it is the barrier for evaluating the packaging materials such as plastic sheeting or thin slice to penetrants such as gases
The important parameter of performance.Most common gas permeation rate is OTR oxygen transmission rate and moisture-vapor transmission.By to plastic sheeting or
Test of the materials such as thin slice to oxygen and water vapo(u)r transmission energy, solve to produce due to sensitive to oxygen or vapor so as to analyze
An important factor for raw oxidation deterioration and the problems such as going mouldy of making moist are evaluation shelf life quality, and analysis determine shelf
The important evidence of phase.To realize transmission measurement of the packaging material to gases such as oxygen and vapor, it is necessary to using oxygen and
The gas permeation rate tester such as vapor.Gas permeation rate tester is widely used in food and medicine manufacturing enterprise, food and medicine
Packaging material fabricates enterprise, and major medicine inspecting institute, pack institute and medicine equipment inspection institute.
Ensure measurement result that gas permeation rate tester provides accurately and reliably, it is necessary to enter using reference membrane to instrument
The regular Quality Control of row.Quality control in industry to the gas permeation rate tester such as OTR oxygen transmission rate and moisture-vapor transmission at present is all
It is to be carried out by the reference membrane of producer oneself offer, and most of reference membranes are naked film, have plenty of individual naked film, have
Be then naked film coiled material.Because reference membrane uses the structure type of naked film, can be influenceed between film and film by material homogeneity,
It is lack of consistency.The reference membrane of naked form membrane simultaneously, due to ensure the sealing of test chamber in measurement process, naked film surrounding will
Seal grease is contacted, can only be disposable, it can not reuse, cause Quality Control result not reappear, be surveyed to gas permeation rate
The quality control band for trying instrument carrys out many uncertain factors.
Utility model content
The problem of the purpose of this utility model can not be reused to solve reference membrane, and measurement result can not reappear,
A kind of reusable gas permeation rate reference membrane is provided.
A kind of reusable gas permeation rate reference membrane, including：Aluminium foil and film；Aluminium foil is provided with manhole, thin
Film is brought into close contact between two layers of aluminium foil by viscose face with aluminium foil；
Described film, only expose at manhole；The gross area that film exposes is the Validity Test face of reference membrane
Product, it should ensure that Validity Test area is no more than the Validity Test area of gas permeation rate tester test chamber；
Described aluminium foil, its profile are 15cm*15cm square, and side is aluminium foil surface, and opposite side is viscose face, viscose
Protected with self-adhesive paper in face；Viscose face is used to paste film, aluminum foil thickness scope 0.1mm~0.3mm；It is provided with aluminium foil circular logical
Hole, by the number and area that change manhole on aluminium foil, thus it is possible to vary the Validity Test area of reference membrane, with suitable for not
With the gas permeation rate tester of measurement range；Aluminium foil corner is respectively designed with circular locating openings, it is convenient with reference to film production and
The Set and Positioning of reference membrane in measurement process；
Described reference membrane, its profile are 15cm*15cm square, and both sides are aluminium foil surface, only at manhole
Expose film, and the manhole position of both sides aluminium foil surface will overlap consistent with position of positioning hole, not misplace；
Described reference membrane, in the test chamber by positioning hole clamping to gas permeation rate tester, the sealing of test chamber
Grease only contacts with the aluminium foil surface of reference membrane；Measurement finishes, and takes out reference membrane from test chamber, the sealing on reference membrane aluminium foil surface
Grease can be with wiped clean；
Described reference membrane may be reused；
Described film is usually plastic sheeting or thin slice, usually polymeric material, should be smooth, should not there is fold, gas
The visual defects such as hole, spot.
Beneficial effect
1st, a kind of reusable gas permeation rate reference membrane of the present utility model, pasted by using in film both sides
There is the design method of aluminium foil, ensure only to expose film in aluminium foil through hole, realizing the repeatable of gas permeation rate reference membrane makes
With being advantageous to the reproduction of measurement result, and reduce the measurement error brought by material homogeneity.
2nd, a kind of reusable gas permeation rate reference membrane of the present utility model, by manhole on aluminium foil
The different designs of number and area, thus it is possible to vary the Validity Test area of reference membrane, so as to meet the gas of different measurement ranges
The Quality Control measurement of transmission measurement instrument, and by accurately measuring the perforated area of manhole, ensure gas permeation rate tester
Accurate calibration.
Brief description of the drawings
Fig. 1 is the schematic diagram of reference membrane of the present utility model；
Fig. 2 is the schematic diagram of thin-film material of the present utility model；
Fig. 3 is the schematic diagram of aluminum foil material of the present utility model；
Fig. 4 is the schematic diagram that reference membrane of the present utility model designs and produces.
Wherein, 1- reference membranes, 2- aluminium foils, 3- films, 4- manholes, 5- positioning holes, 6- viscoses face, 7- aluminium foil surfaces, 8-
Self-adhesive paper.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
A kind of reusable gas permeation rate reference membrane of the present utility model, including aluminium foil 2 and film 3, aluminium foil 2 are opened
There is manhole 4, film 3 is brought into close contact between two layers of aluminium foil 2 by viscose face 6 and aluminium foil 2.It is saturating to be mainly used in gas
The quality control of rate tester is crossed, and solves existing reference membrane not reusing, the problem of measurement result can not reappear.
Described reference membrane is as shown in figure 1, including aluminium foil 2 and film 3, and film 3 is between two layers of aluminium foil 2, only in aluminium
Expose at the manhole 4 of paper tinsel 2.For aluminium foil 2 as shown in figure 3, side is aluminium foil surface 7, opposite side is viscose face 6, and viscose face 6 is posted not
Drygum paper 8, to protect the viscose face 6 of aluminium foil 2.It is the aluminium foil 2 in the range of 0.1mm~0.3mm to select thickness, and being cut into profile is
15cm*15cm square.The center of aluminium foil 2 is provided with manhole 4, as shown in figure 1, should ensure that the smooth of the edge of manhole 4, nothing
Burr.Meanwhile the corner of the square of aluminium foil 4 is provided with a diameter of 6mm circular locating openings 5, to facilitate the making of reference membrane and make
Positioning and clamping during., should be by two layers of aluminium foil 2 by the direction and position for pasting film 3 when carrying out through hole to aluminium foil 2
It is stacked together and carries out through hole, to ensure that the manhole 4 of two layers of aluminium foil 2 is consistent with the position coincidence of positioning hole 5, without mistake
Position.
Film 3 is cut into 12cm*12cm square.As shown in Figure 2.
The making of reference membrane is determined as shown in figure 4, an aluminium foil 2 for being provided with manhole 4 is placed on by positioning hole 5
On bit platform, down, viscose face 6 upward, tears self-adhesive paper 8 to aluminium foil surface 7, exposes viscose face 6, the film that then will be cut
3 entirely paste on the viscose face 6 of aluminium foil 2；Another aluminium foil 2 of paired making is further taken out, tears self-adhesive paper 8,
Expose viscose face 6, viscose face 6 passes down through positioning hole 5 and entirely pasted on film 3；Counterweight is finally used on locating platform
Block presses, and ensures that the viscose face 6 of film 3 and upper and lower aluminium foil 2 is brought into close contact, especially the surrounding of manhole 4.
The gross area that wherein described film 3 exposes is the Validity Test area of reference membrane 1, be should ensure that no more than gas
The Validity Test area of transmission measurement instrument test chamber.By changing the number and area of manhole 4 on aluminium foil 2, Ke Yigai
Become the Validity Test area of reference membrane, with the measurement demand of the gas permeation rate tester suitable for different measurement ranges.
Wherein described reference membrane, it is the test by reference membrane clamping to gas permeation rate tester in actual use
In chamber, the aluminium foil surface 7 of the seal grease of test chamber surrounding only with reference membrane is brought into close contact, to ensure effective sealing of test chamber,
Meanwhile film 3 is not polluted by seal grease.Measurement finishes, and takes out reference membrane from test chamber, close on reference membrane aluminium foil surface 7
Oil sealing fat can use chopped fiber lens paper or absorbent cotton wiped clean.
Wherein described reference membrane may be reused.
Wherein described film 3 is plastic sheeting or thin slice, usually polymeric material, should be smooth, it is impossible to have fold, gas
The visual defects such as hole, spot.
Gas permeation rate tester typically all has certain measurement range, to realize gas permeation rate tester gamut
The quality control of scope is, it is necessary to design high, medium and low a variety of reference membranes with gas with various transmitance, to meet gas permeation
Quality Control demand of the rate tester in whole range ability.A kind of reusable gas permeation rate that the utility model is related to
Reference membrane, can by changing the perforated area of manhole 4 on aluminium foil 2, or by changing the perforate number of manhole 4
To reach the purpose for the Validity Test area for changing reference membrane, so as to change the gas permeation rate of reference membrane.Measured with pressure differential method
Exemplified by thin-film material OTR oxygen transmission rate, the functional relation between gas permeation rate and Area of Sample is as follows：
In formula：Represent OTR oxygen transmission rate, unit cm3/(m2·24h·Pa)；Δ p/ Δs t represented in stable pass through,
The arithmetic average of low-pressure chamber gas pressure change in unit interval, unit Pa/h；V represents low pressure building volume, unit cm3；S tables
Show Area of Sample, unit m2；T represents test temperature, unit K；(p1-p2) represent the pressure differences of sample both sides, unit Pa；T0、p0Table
Show temperature (273.15K) and the pressure (1.0133 × 10 under standard state5Pa)。
, can be by changing the Validity Test face of the i.e. reference membrane of sample as can be seen that when not changing thin-film material species
Product, and perforated area is accurately measured by precision instruments such as projecting apparatus, you can reach the purpose for changing gas permeation rate, method
Simplicity, cost are low.
The present embodiment utilizes two layers of clamping film 3 of aluminium foil 2 by using the design structure of the formula of aluminium foil 2- film 3- aluminium foils 2
Form, a kind of reusable gas permeation rate tester reference membrane is devised, for carrying out gas permeation rate tester
Quality control, have it is simple in construction, easy to operate the advantages of, meanwhile, realize the reusable of reference membrane, realize matter
Control the reproducibility of result.By the gas permeation rate film reference material from reliable in quality, and utilize the equipment such as projecting apparatus
The Validity Test area of accurate measurement reference membrane, the quality control that gas permeation rate tester can be effectively ensured are accurate, reliable.
Specific embodiment of the present utility model is described above in association with accompanying drawing, but these explanations can not be understood to
The scope of the utility model is limited, the scope of protection of the utility model is limited by appended claims, any in right
Change on the basis of it is required that is all the scope of protection of the utility model.
Claims (8)
- A kind of 1. reusable gas permeation rate reference membrane, it is characterised in that：It is made up of aluminium foil (2) and film (3), aluminium foil (2) manhole (4) is provided with, film (3) is closely pasted between two layers of aluminium foil (2) by viscose face (6) and aluminium foil (2) Close；The film (3) is only exposed at manhole (4) place.
- A kind of 2. reusable gas permeation rate reference membrane as claimed in claim 1, it is characterised in that：The film (3) gross area exposed is the Validity Test area of reference membrane, should ensure that Validity Test area is surveyed no more than gas permeation rate Try the Validity Test area of instrument test chamber.
- A kind of 3. reusable gas permeation rate reference membrane as claimed in claim 1, it is characterised in that：The aluminium foil (2), side is aluminium foil surface (7), and opposite side is viscose face (6), and viscose face (6) are protected with self-adhesive paper (8).
- A kind of 4. reusable gas permeation rate reference membrane as described in claim 1 or 3, it is characterised in that：The aluminium Paper tinsel (2) be 15cm*15cm square, aluminium foil (2) thickness range 0.1mm~0.3mm.
- A kind of 5. reusable gas permeation rate reference membrane as described in claim 1 or 2 or 3, it is characterised in that：Pass through Change the number and area of the through hole on aluminium foil (2), the Validity Test area of reference membrane can be changed, with suitable for different surveys Measure the gas permeation rate tester of scope.
- A kind of 6. reusable gas permeation rate reference membrane as claimed in claim 1, it is characterised in that：The aluminium foil (2) corner is respectively designed with circular locating openings (5).
- A kind of 7. reusable gas permeation rate reference membrane as claimed in claim 1, it is characterised in that：Described film (3) it is polymeric material.
- A kind of 8. reusable gas permeation rate reference membrane as described in claim 1 or 7, it is characterised in that：Described Film (3) is plastic sheeting or thin slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721046038.8U CN207051159U (en) | 2017-08-21 | 2017-08-21 | A kind of reusable gas permeation rate reference membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721046038.8U CN207051159U (en) | 2017-08-21 | 2017-08-21 | A kind of reusable gas permeation rate reference membrane |
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| CN207051159U true CN207051159U (en) | 2018-02-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020248301A1 (en) * | 2019-06-13 | 2020-12-17 | 广州西唐机电科技有限公司 | Reference substance for detecting permeation and leakage amount of steam and gas and preparation method therefor |
-
2017
- 2017-08-21 CN CN201721046038.8U patent/CN207051159U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020248301A1 (en) * | 2019-06-13 | 2020-12-17 | 广州西唐机电科技有限公司 | Reference substance for detecting permeation and leakage amount of steam and gas and preparation method therefor |
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