CC-TQ645 Fully Automatic Air Permeability Tester adopts the latest technology and the most universal testing methods, widely applicable for air permeability testing of battery separators, proton exchange membranes, cigarette paper, base paper, and tipping paper. This instrument is a fully automated, single-operation device controlled by a single-chip microcomputer. Its testing methods meet the requirements of various standards such as Schopper, Bendtsen, and Gurley, making it a universal instrument for air permeability testing in the domestic cigarette and separator industries. Its performance meets or exceeds international standards. The instrument complies with the standard: GB/T 36363-2018 Polyolefin Separator for Lithium-Ion Batteries.

Product Features

·? Equipped with an industrial-grade color resistive touchscreen computer, menu-style interface for easy operation, allowing users to control and view real-time data and curves conveniently;

·? Equipped with imported high-precision, high-speed sampling chips and sensors, ensuring accurate test results, good repeatability, and high precision;

·? Patented extreme zero point and sealed pipeline system, utilizing baseline technology to eliminate system errors and achieve more precise test results;

·? Unique anti-side-leakage sample structure design, ensuring more stable and reliable sample installation and sealing;

·? Features precise pressure control capability and pressure-holding function;

·? The instrument has data recording and processing functions, with print output for quick printing of test results;

·? Comprehensive test data analysis, providing average, maximum, minimum, pressure difference, coefficient of variation, and other data in a single test;

·? Supports multiple unit conversions (s/100mL, mL/min, μm/(Pa·s), CU);

·? The instrument can set the corresponding pressure difference based on the actual condition of the sample, enabling easy and accurate determination of results;

·? Pneumatic sample clamping saves time and effort, ensures consistent clamping force and better sealing, and includes an anti-pinch design for safer operation;

·? User-friendly and highly automated, the testing process is automatic and fast, ensuring the accuracy of test results;

·? The pressure difference on both sides of the sample can be automatically adjusted via a high-precision electric cylinder according to set values, enabling rapid automatic testing;

·? The gas permeation volume of the sample can be set for automatic flow collection, with imported high-precision micro-flow sensors from the USA accurately collecting the permeated gas volume;

·? The instrument can be upgraded with computer software control, enabling dual-control operation between the standalone device and computer;

Testing Principle

Designed based on the principle of the pressure difference method, the pre-treated sample is placed between the upper and lower measuring surfaces, creating a constant pressure difference on both sides of the sample. Under this pressure difference, gas flows from the high-pressure side through the sample to the low-pressure side. The relevant parameters of the sample's air permeability are calculated based on the time required for 100ml of gas to pass through a 6.45cm2 area under a 1.21kPa pressure difference.

Reference Standards

GB/T 36363-2018 Polyolefin Separator for Lithium-Ion Batteries, GBT458, ISO5636-2, ISO5636-3, ISO5636-5, QBT1667, GBT22819, GBT23227, ISO2965, YCT172, GBT12655, GBT 20042.7, etc.

Technical Specifications

Product Configuration

Standard Configuration: Main unit, micro printer, Ф6mm polyurethane tube

Note: The instrument's air source inlet is a Ф6mm polyurethane tube; the test air source must be provided by the user.