In our daily life and in many industrial fields, the contact between materials and ozone is inevitable. Ozone, as a strong oxidizing agent, has corrosive and destructive effects on many materials.
The ozone test equipment simulates and strengthens the ozone conditions in the atmosphere, and obtains test results similar to those actually used or reproduced in a short time to study the effect of ozone on polymer materials and their products (rubber). Rapid identification and evaluation of anti-ozone aging properties of rubber and anti-ozone agent protective effectiveness of the method, and then take effective anti-aging measures to improve the service life of rubber products.
The core of the ozone test equipmentis its ability to accurately simulate and control the ozone environment. Typically, ozone is produced by an ozone generator that converts oxygen into ozone using methods such as electrical discharge or ultraviolet irradiation. Inside the equipment, through a series of sensors and control systems, key parameters such as temperature, humidity and ozone concentration can be precisely adjusted to create specific test conditions for the sample.
The sample is placed on a specific bracket or fixture in the test equipment to ensure adequate exposure to the ozone environment. During the test, ozone reacts chemically with the surface of the sample, triggering changes in the properties of the material that will be evaluated through subsequent testing and analysis.
Static ozone test equipmentis a more common type. In this test equipment, the sample is at rest and the ozone gas is evenly distributed in the equipment. Its working mode is relatively simple, and it is suitable for testing the ozone resistance of some small and simple shaped samples.
The advantages of static ozone test equipmentare relatively simple structure, convenient operation and relatively low cost. However, it also has certain limitations, such as for some complex shapes or samples requiring dynamic forces, it may not be able to accurately simulate the situation in actual use.
The dynamic ozone test equipmentcan better simulate the complex conditions in practical applications. In this equipment, the sample can be stretched, compressed, bent and other movements while being exposed to ozone. Sample holder can be 360° rotated, rotate speed is 20-25mm/s Clamps tensile stretch 5%-35%.
The operating principle of dynamic ozone test equipmentis complicated, which requires precise mechanical transmission and control system to realize sample movement. Its application scenarios mainly include the evaluation of ozone resistance of rubber seals and conveyor belts under dynamic use conditions. Compared with the static test equipment, the dynamic test equipment can provide test results closer to the actual use situation, but the equipment cost and operation difficulty are relatively high.
Ozone concentration is one of the most important parameters in ozone test equipment. Accurate ozone concentration measurement and control is essential to ensure the accuracy of test results. At present, the commonly used measurement methods of ozone concentration include iodometry, colorimetry and electrochemical method. The advanced ozone test equipmentcan control the ozone concentration within a very small error range to ensure the repeatability and reliability of the test.
In addition to ozone concentration, temperature and humidity are also important factors affecting the ozone resistance of materials. The test equipment should have a wide temperature and humidity adjustment range to meet the requirements of different materials and test standards. At the same time, maintaining the stability of temperature and humidity is also the key to ensuring accurate test results.
ISO 1431-1:2004 "Rubber - ageing tests for ozone resistance - Part 1: static tests"
This standard specifies the requirements and test procedures for the use of static test methods to evaluate the weatherability of rubber materials in ozone environments.
ASTM D1149-07 "Standard Test Methods for Rubber Deterioration—Cracking in an Ozone Controlled Environment"
This standard is applicable to the ozone aging test of rubber materials, including the requirements and test procedures for ozone concentration, temperature and humidity under different test conditions.
GB/T 7762-2003 "Test method for ozone aging resistance of rubber and plastics"
This standard is applicable to the ozone aging test of rubber and plastic materials, including the requirements of test conditions, test equipment and test procedures.
In the rubber and plastic products industry, ozone test equipmentis widely used in tires, rubber seals, plastic pipes and other products ozone resistance test. Through these tests, the ability of the product to resist ozone aging during long-term use can be evaluated, and the basis for product improvement and quality control can be provided.
For example, tires are constantly in contact with ozone in the air during use, which is prone to cracking and aging. By testing the tire rubber in the ozone test equipment, potential problems can be found in advance, and corresponding improvement measures can be taken to extend the service life of the tire.
The insulation materials of wire and cable may have the problem of decreasing insulation performance when exposed to ozone for a long time. The use of ozone test equipmentto test insulation materials can ensure that wire and cable can maintain good electrical performance and safety under complex environmental conditions.
In the aerospace sector, aircraft components such as seals and rubber hoses need to have extremely high reliability and weather resistance. The ozone test equipmentcan simulate the ozone conditions in the high-altitude environment, and carry out strict tests on these parts to ensure the flight safety of the aircraft.
Through continuous technological improvement and application expansion, the ozone test equipmentwill provide more accurate and reliable test results for various industries and help the sustainable development of related industries. Whether in the traditional rubber, plastics, wire and cable industries, or in the emerging aerospace, new energy and other fields, the ozone test equipmentwill continue to play a key role in the development and application of materials escort.
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