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About UsZHONGTAI HENGBANG Engineering Technology Co., Ltd. is located in the Academician Entrepreneurship Base of Tai'an National High-Tech Industrial Development Zone, Shandong Province. The company is a comprehensive service provider specializing in engineering consulting and design, materials R&D and manufacturing, as well as operations and maintenance. With strong technical expertise and robust R&D capabilities, its products are primarily applied in critical areas such as water conservancy infrastructure projects, transportation infrastructure initiatives, and environmental protection solutions for isolating and preventing leakage from urban waste and highly hazardous industrial solid waste.
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ProductsZHONGTAI HENGBANG Engineering Technology Co., Ltd. boasts production lines sourced from countries including Germany, Italy, Denmark, Belgium, and Switzerland, adhering to rigorous quality management systems and testing standards. We are equipped with advanced testing equipment capable of evaluating tensile strength, creep resistance, UV protection, water permeability, flame retardancy, antistatic properties, chemical corrosion resistance, and oxidation performance.
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Application CasesThe product is primarily used in hydraulic infrastructure projects, transportation infrastructure projects, and environmental protection applications—including the isolation and impermeability of municipal waste and highly hazardous industrial solid waste.
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BlogPrioritizing technological advancement and innovation, our company is committed to fulfilling user needs to the fullest extent possible.
How to test the aging resistance of Yunnan waterproof boards and what are the storage tips?
Release date:
2020-12-28
How to test Yunnan Chuxiong Waterproof Membrane The aging resistance performance ？
I. Heat Resistance Test – Hot Air Aging Oven
Heat is one of the primary factors accelerating the aging reactions of polymer materials used in Yunnan Chuxiong's waterproofing boards. Thermal exposure can cause chain scission in polymer molecules, leading to the formation of free radicals and triggering free-radical chain reactions. These reactions ultimately result in polymer degradation and crosslinking, severely impairing material performance. The oven aging test is a widely used method for evaluating thermal resistance: samples are placed in a heated oven under controlled conditions, and their appearance and properties are periodically inspected and tested over time, allowing researchers to assess the material's ability to withstand heat. This approach is commonly applied to plastics, rubbers, and even information storage media, making it a standard technique for thermal durability testing in these fields.
II. Weathering Tests – UV Accelerated Aging Test Chamber, Xenon Arc Lamp Weathering Test Chamber
Yunnan Chuxiong Waterproof Membrane Since exposure to sunlight occurs during use, conducting accelerated aging tests in the laboratory under simulated outdoor climate conditions is a crucial method for evaluating weather resistance. Typically, these weathering tests are performed using climate aging chambers, which replicate sunlight by emitting ultraviolet radiation via carbon arc lamps, xenon lamps, or UV fluorescent lamps. Additionally, the chambers periodically spray salt solutions onto the test samples to mimic the effects of rain and salt particles, creating a dynamic interplay of multiple environmental factors throughout the testing process.
III. Damp-Heat Testing — Damp-Heat Test Chamber
In an atmospheric environment, temperature (heat) and humidity (moisture) are objectively present factors. Some polymer materials are stored, transported, or used under conditions of high temperature and high humidity. Therefore, wet-heat aging tests are not only practically meaningful but also economically valuable. At elevated temperatures, water vapor exhibits significant permeability through polymer materials. Under the influence of heat, this enhanced permeability allows moisture to penetrate deep into the material structure, where it can accumulate and eventually form bubbles. These bubbles weaken the intermolecular interactions within the material, ultimately leading to performance degradation over time. Wet-heat aging tests are typically conducted using a humidity and temperature chamber, which provides a standardized, non-contaminated atmospheric environment (with test gases composed of N₂, O₂, CO₂, and water vapor). The chamber maintains temperatures ranging from 40°C to 60°C and relative humidity levels consistently above 90% RH.
4. Cold Resistance Test – Low-Temperature Test Chamber
The cold resistance of a polymer refers to its ability to withstand performance changes caused by low temperatures. However, when the ambient temperature drops below a certain threshold, the polymer becomes brittle. Low-temperature storage tests are used to evaluate a material's suitability for cold-storage conditions. Cold resistance is closely linked to the polymer’s chain mobility, intermolecular forces, and chain flexibility. For instance, saturated polymers with single bonds in their main chains exhibit excellent flexibility—and thus better cold resistance—because their molecular structures lack bulky substituents or steric hindrance. Conversely, polymers featuring rigid, bulky side groups or those that are heavily cross-linked tend to have poor cold resistance.
Store Yunnan Chuxiong Waterproof Membrane It has become one of the most important guarantees ensuring the continuous effectiveness and impeccable quality of our waterproofing sheets from Chuxiong, Yunnan. If the project timeline is extended, or for some reason… Yunnan Chuxiong Waterproof Membrane Exposed to sunlight for extended periods. When there is a wide variety of geosynthetic materials with different applications, they should also be stored separately, clearly labeled with their performance characteristics and intended uses.
Yunnan Chuxiong Waterproof Membrane The shelf life of the product must not exceed its expiration date. When storing, also take precautions against fire hazards. Storage personnel should enhance their knowledge in this area. When selecting Yunnan Chuxiong waterproof boards, we need to determine the appropriate type based on the specific conditions of the project.
Yunnan Chuxiong Waterproof Membrane When laying the material, the only tool required is a welding machine, and the appropriate frequency and power level should be determined based on the specific situation. The temperature control system uses automatic constant-temperature PI0 control, while the speed control mechanism employs pulse-width modulation.
Yunnan Chuxiong Waterproof Membrane Sealing width: 150 m; the width of each of the two weld seams must be at least 15 mm. The strength of the central cavity weld—measured as shear-direction tensile resistance—must reach **85% of the base material**. Welding must be performed without any skewing or bulging; instead, ensure smooth, even welding by working continuously from top to bottom in a circular motion. Finally, verify that the seam is completely tight and free of gaps.
ZHONGTAI HENGBANG Engineering Technology Co., Ltd. is a comprehensive service provider integrating engineering consulting and design, material R&D and manufacturing, as well as operations and maintenance. With robust technical expertise and strong R&D capabilities, our products are prominently applied in critical environmental protection fields such as hydraulic infrastructure projects, transportation infrastructure initiatives, and the isolation and impermeability solutions for urban waste and hazardous industrial solid waste management. The company boasts advanced production lines sourced from Germany, Italy, Denmark, Belgium, Switzerland, and other countries, adhering to stringent quality management systems and rigorous testing standards. We are equipped with state-of-the-art equipment capable of evaluating key properties—including tensile strength, creep resistance, UV resistance, water permeability, flame retardancy, anti-static performance, chemical corrosion resistance, and oxidation stability—ensuring superior product quality. Furthermore, ZHONGTAI HENGBANG has earned prestigious certifications such as CRCC, ISO 9001, ISO 14001, OHSAS 18000, and MA approvals, along with favorable test reports from China’s Ministry of Railways and Ministry of Water Resources, the EU CE certification, and additional industry-specific lab tests conducted in Russia, Australia, the U.S., and other regions. We are dedicated to delivering top-quality geosynthetic materials and unparalleled services for projects spanning areas like reinforced earth retaining walls, soft ground stabilization, land reclamation and dike construction/maintenance, hydraulic engineering, slope remediation and ecological restoration, road construction, and mining projects.
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