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Labthink Instruments Co., Ltd.
Fine-Tuning Oxygen Blockade by Studying Film Thickness in Composite Packaging

Fine-Tuning Oxygen Blockade by Studying Film Thickness in Composite Packaging

Product catalog summary

Overview
The VAC-V2 is a sophisticated instrument designed for measuring the gas transmission rate, solubility coefficient, diffusion coefficient, and permeability coefficient of various materials such as plastic films, composite films, high barrier materials, sheeting, and aluminum foils. It utilizes the differential pressure method for these determinations.

Professional Technology

Simultaneous measurement of multiple coefficients in one operation.
Capability to test three distinct specimens independently.
Wide range and precise control of temperature and humidity.
Two test modes: proportional and standard.
Extended test range for high permeability materials.
Data fitting function for extreme conditions.
Customizable for testing poisonous, inflammable, and explosive gases.
Computer-controlled with automatic test processes.
Fast calibration with reference film.
RS232 port for data transfer and support for Lystem™ Lab Data Sharing System.

Test Principle
The specimen is mounted in a gas diffusion cell, creating a sealed barrier between two chambers. A pressure difference is established, and gas permeates through the specimen. The permeability and barrier properties are determined by monitoring pressure changes.

Standards
The instrument complies with ISO 15105-1, ISO 2556, GB/T 1038-2000, ASTM D1434, JIS K7126-1, YBB 00082003.

Applications

Basic Applications: Films, sheeting, including various types of plastic and composite films.
Extended Applications: Various gases, inflammable and explosive gases, biodegradable films, aerospace materials, paper and paper board, paint films, glass fiber cloth and paper, soft tube materials for cosmetics, rubber sheeting.

Technical Specifications

Film Test Range: 0.05 ~ 50,000 cm³/m²·24h·0.1MPa (standard volume).
Number of Specimens: 3 with independent results.
Vacuum Resolution: 0.1 Pa.
Temperature Range: 5°C ~ 95°C with ±0.1°C accuracy.
Humidity Range: 0%RH, 5%RH～95%RH with ±1%RH accuracy.
Specimen Size: Φ97 mm.
Test Area: 38.48 cm².
Test Gas: O2, N2, and CO2 (not supplied).
Test Pressure: -0.1MPa ~ +0.1MPa.
Gas Supply Pressure: 0.4 MPa ~ 0.6 MPa.
Instrument Size: 760 mm(L) x 575 mm(W) x 450 mm(H).
Power: AC 220V 50Hz.
Net Weight: 88 kg.

Configurations

Standard Configurations: Instrument, constant temperature control device, professional software, round sample cutter, vacuum grease, fast quantitative filter paper, and imported vacuum pump.
Optional Parts: Blades for sample cutter, vacuum grease, vacuum pump oil, fast quantitative filter paper.

Note: The gas supply port is Φ6 mm PU Tubing, and customers need to prepare for gas supply.

Catalog excerpts

Fine-Tuning Oxygen Blockade by Studying Film Thickness in Composite Packaging-1

PERME® VAC-V2 Gas Permeability Tester VAC-V2 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. Professional Technology ⚫ Gas transmission rate, solubility coefficient, diffusion coefficient and permeability coefficient of the specimen could be obtained at one operation 3 distinct or equivalent specimens could be tested individually with independent test results at one operation Wide range and high precision temperature and humidity control to meet various test conditions The instrument comes with two test modes: proportional mode and standard mode Test range could be extended based on user requirements to test the materials with high permeability Test results could be easily obtained even at extreme conditions by data fitting function, which could fit any temperature The instrument could be used to test poisonous, inflammable, and explosive gases (customization required) The instrument is controlled by a computer and test process is automatic Reference film for fast calibration to ensure accurate and universal test data Standard RS232 port for convenient data transfer Support Lystem™ Lab Data Sharing System for uniform management of test results and test reports Test Principle The pre-conditioned specimen is mounted in the gas diffusion cell as to form a sealed barrier between two chambers. The lower-pressure chamber is firstly evacuated, followed by the evacuation of the entire cell. A flow of gas is thereafter introduced into the evacuated higher-pressure chamber and a constant pressure difference is generated between two chambers. The gas permeates through the specimen from the higher pressure side into the lower side. The gas permeability and other barrier properties of the specimen can be obtained by monitoring the pressure changes in the lower chamber. This test instrument conforms to the following standards: ISO 15105-1, ISO 2556, GB/T 1038-2000, ASTM D1434, JIS K7126-1, YBB 00082003 Applications This test instrument is applicable to the determination of gas permeability of: Basic Applications Including plastic films, plastic composite films, paper-plastic composite films, geomembranes, coextruded fi

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Fine-Tuning Oxygen Blockade by Studying Film Thickness in Composite Packaging-2

aluminum foil, aluminum foil composite films, and many others Including engineering plastics, rubber, and building materials, e.g. PP, PVC, and PVDC Various Gases Inflammable, Explosive Gases Biodegradable Films Materials for Aerospace Usage Extended Applications Paper and Paper Board Test the permeability of various types of gases, e.g. O 2, CO2, N2, Air and Helium Test the permeability of various films to inflammable, explosive gases Test gas permeability of various sorts of biodegradable films, e.g. starch-based biodegradable bags This instrument can test the Helium permeability of airship...

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Fine-Tuning Oxygen Blockade by Studying Film Thickness in Composite Packaging-3

Port Size Instrument Size Configurations Standard Configurations Optional Parts Note Instrument, Constant Temperature Control Device, Professional Software, Round Sample Cutter, Vacuum Grease, Fast Quantitative Filter Paper and Vacuum Pump (Imported) Blades for Sample Cutter, Vacuum Grease, Vacuum Pump Oil, Fast Quantitative Filter Paper 1. The gas supply port of the instrument is Φ6 mm PU Tubing; 2. Customers will need to prepare for gas supply.

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