Test Background
The static ozone cracking resistance test of coated fabrics refers to a method for measuring the relative ozone cracking resistance of rubber or plastic coated fabrics when exposed to ozone-containing air without direct sunlight under static strain.
Zhongke Testing Environmental Reliability Experiment Center has the ability to conduct environmental testing and reliability performance testing of various rubber or plastic coated fabric materials and products, and provides professional static ozone crack resistance testing services for coated fabrics.
Test Principle
Expose the sample to ozone under specified conditions, and evaluate the effect of ozone on rubber or plastic-coated fabrics by measuring the time for the first crack to appear, or by measuring the exposure time without cracks.
Test method
Adjust the specified ozone concentration, flow rate and test temperature. The stretched and conditioned specimen is then placed into the test chamber and the test conditions are kept stable.
Use a 7x magnifying glass to regularly check the cracks of the sample, and use an appropriate light source to illuminate the sample to inspect the sample.
The magnifying glass can be installed on the window of the box wall, or the sample can be taken out of the test box for short-term inspection. Do not touch or bump the specimen during inspection.
Test standard:
HG/T 2716-2008 Determination of static ozone cracking resistance of rubber or plastic coated fabrics
GB/T 7762—2003 Vulcanized rubber or thermoplastic rubber Ozone cracking resistance Static tensile test
HG/T 3050.1 Rubber or plastic coated fabrics - Determination of characteristics of whole rolls - Part 1: Determination methods for length, width and net mass
