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Testing Gas Barrier Properties of Complex Films

Testing Gas Barrier Properties of Complex Films

Testing Gas Barrier Properties of Complex Films

Product catalog summary
Introduction
Complex films, composed of multi-layer structures, are essential in modern packaging due to their ability to impede gas transmission, which is crucial for maintaining product freshness and shelf life. Testing these films for gas barrier properties is challenging due to their layered construction.

Challenges in Testing
The primary challenges in testing complex films include the influence of multi-layer structures on gas flow patterns and potential edge leakage. Unsealed edges can lead to inaccurate test results by allowing gas to bypass the intended measurement path. To ensure reliable results, strict edge sealing is necessary.

Testing Methods
Various methods are employed to measure gas transmission rates through film samples:
  • Differential Pressure Method: Measures the pressure difference across the film as gas permeates through it. The Labthink VAC-V2 Gas Permeability Tester uses this method to determine gas transmission rate, solubility coefficient, diffusion coefficient, and permeability coefficient.
  • Electrochemical Detection: Utilizes sensors to detect specific gas molecules passing through the film. The C203H Oxygen Transmission Rate Test System uses a Coulometric oxygen analysis sensor and conforms to ASTM D 3985 standards for high-precision oxygen permeability tests.
  • Gravimetric Method: Measures minute weight changes in the film specimen caused by gas permeation. The C360M Water Vapor Transmission Rate Test System is based on this method and conforms to ASTM E96 requirements.

Conclusion
Accurate testing of gas barrier properties in complex films is vital for optimizing packaging design and material selection. Proper edge sealing and reliable testing instruments ensure that complex films provide the desired protection, improving product quality and shelf life while contributing to sustainable packaging by minimizing material waste.

Industry Collaboration
As the demand for functional packaging materials grows, testing methods continue to evolve. Labthink encourages collaboration with packaging industry companies for quality control. More information is available at www.labthink.com.
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Catalog excerpts

Testing Gas Barrier Properties of Complex Films-1

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Testing Gas Barrier Properties of Complex Films Keywords: Complex Film, multi-layer film, gas Barrier Property, Gas permeability test, gas transmission rate test, Edge Sealing, Accuracy Complex films, multi-layer structures made from various materials, play a vital role in modern packaging. Their ability to impede gas transmission is crucial for maintaining product freshness and shelf life. However, accurately testing the gas barrier properties of these films presents unique challenges due to their layered construction. Testing complex films is challenging. Firstly, the influence of Multi-layer. The layered structure of complex films can influence gas flow patterns within the material. This differs from single-layer films where gas transmission is more straightforward. Package edge leakage is another possible challenge. Unsealed edges on complex film specimens can become leakage points during testing. This compromises the accuracy of the test results by allowing gas to bypass the intended measurement path. To overcome these challenges and ensure reliable test results, strict edge sealing of complex film specimens is paramount. This minimizes edge leakage and guarantees gas transmission occurs solely through the film itself. Gas barrier property testers typically employ various methods to measure gas transmission rates through the film sample. Common methods include: 1

 Open the catalog to page 1
Testing Gas Barrier Properties of Complex Films-2

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Differential Pressure Method: Measures the pressure difference across the film specimen as gas permeates through it. Labthink VAC-V2 Gas Permeability Tester is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, composite films, high barrier materials, sheeting and aluminum foils. Electrochemical Detection: Utilizes sensors that detect specific gas molecules...

 Open the catalog to page 2
Testing Gas Barrier Properties of Complex Films-3

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 C203H Oxygen Transmission Rate Test System is based on Coulometric oxygen analysis sensor and equal pressure test method, and is conforming to ASTM D 3985 and other standards. It provides high-precision and high-efficiency oxygen permeability tests for high gas barrier materials. During a test, Oxygen molecules are carried to the sensor. Through the analysis of the oxygen concentration measured by the sensor, the oxygen transmittance is calculated. Gravimetric Method: Measures minute weight changes in the film specimen caused by...

 Open the catalog to page 3
Testing Gas Barrier Properties of Complex Films-4

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 C360M Water Vapor Transmission Rate Test System, is designed and manufactured based on the gravimetric determination method and conforms to the requirements of ASTM E96. This instrument can be used to measure the water vapor transmission rate of barrier materials. In conclusion, accurate gas barrier property testing of complex films is essential for optimizing packaging design and material selection. By employing proper edge sealing techniques and utilizing reliable testing instruments, manufacturers can ensure their complex films...

 Open the catalog to page 4
Testing Gas Barrier Properties of Complex Films-5

Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 As the demand for functional packaging materials grows, testing methods are evolving to ensure a more comprehensive evaluation of packaging films. Labthink encourages collaboration with packaging industry companies for quality control! Visit the website www.labthink.com to learn more!

 Open the catalog to page 5

All Labthink Instruments Co., Ltd. catalogs and technical brochures

  1. C610M

    3  Pages

  2. C690H

    4  Pages

  3. C130H

    4  Pages

  4. COF-P01

    2  Pages

  5. VAC-V2

    3  Pages

  6. C230H (2025)

    4  Pages

  7. C610H

    3  Pages

  8. C206H

    4  Pages

  9. C406H

    5  Pages

  10. C403H

    5  Pages

  11. C 681M

    1  Page

  12. C660B (2025)

    3  Pages

  13. C632M

    3  Pages

  14. C630H

    3  Pages

  15. C620H

    3  Pages

  16. C 640

    4  Pages

  17. C 660M

    3  Pages

  18. C306H (2025)

    4  Pages

  19. C203H

    4  Pages

  20. BTY-B3P

    2  Pages

  21. C360M

    4  Pages

  22. C632B

    3  Pages

  23. C190H

    3  Pages

  24. C390H

    4  Pages

  25. C360H

    4  Pages

  26. C660M

    3  Pages

  27. C303H

    4  Pages

  28. C106H

    5  Pages

  29. C640

    4  Pages

  30. MXD-02

    2  Pages

  31. CHY-C2A

    2  Pages

  32. C611B

    2  Pages

  33. CH130

    4  Pages

  34. C 631 H

    2  Pages

  35. C660 B

    3  Pages

  36. VAC-VBS

    3  Pages

  37. XYD-15K

    2  Pages

  38. C360

    4  Pages

  39. C631 H

    2  Pages

  40. FST-02

    2  Pages

  41. C681 M

    2  Pages

  42. C230

    4  Pages

  43. C631H

    2  Pages

  44. C612M

    3  Pages

  45. SLY-SI

    2  Pages

  46. C360 M

    4  Pages

  47. C611M

    2  Pages

  48. C330H

    4  Pages

  49. Leak Tester

    3  Pages

  50. Tensile Testers

    19  Pages

  51. FDI-01

    5  Pages

  52. DIN 75201

    2  Pages

  53. Abrasion Test

    2  Pages

  54. Torque Meter

    2  Pages

  55. Leak Detector

    2  Pages

  56. Torque tester

    2  Pages

  57. Impact tester

    2  Pages

  58. Gas Analyzer

    2  Pages

  59. TOQUE TESTER

    1  Page

Archived catalogs

  1. C611M

    2  Pages

  2. C306H

    3  Pages

  3. C230H

    4  Pages

  4. Leak Tester

    2  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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