Plastics are widely used in the automotive industry. Currently, a single automobile consists of approximately 30,000 parts, one-third of which are made of plastics. In total, about 39 different types of basic plastics and polymers are used in automobile manufacturing.

Thermal analysis technology covers a wide range of fields, with the chemical field taking the lead. It has been widely applied in physics, geoscience, biochemistry, pharmacy, and other domains. This article mainly introduces the influencing factors in the process of Differential Scanning Calorimetry (DSC) as well as application examples.

The S-N curve, also known as the Wöhler curve, is a fundamental tool for describing the fatigue performance of materials in the field of materials science and engineering. It graphically illustrates the number of cycles (N) that a material can withstand under cyclic stress (S). As a core basis, it is widely used in structural fatigue life prediction, reliability design, and material selection.

Low-Pressure Test Chambers are mainly used in the aerospace, aviation, information technology, electronics, and other fields. They are designed to conduct environmental adaptability and reliability tests on instruments, electrical products, materials, components, and equipment under the single or combined effects of low pressure, high temperature, and low temperature. Additionally, they can measure the electrical performance parameters of test specimens while energizing them. Adopting an integrated combined structure, a low-pressure test chamber consists of three main parts: a thermal insulation cabinet (pressure-bearing structure) located at the front, a refrigeration and vacuum unit at the rear, and an electrical control system mounted on the main door of the test chamber.

Plastics, as materials for friction components, boast excellent advantages such as superior friction reduction and wear resistance, chemical corrosion resistance, tolerance to foreign objects, sound and vibration absorption, and self-lubrication. Therefore, plastics are increasingly widely used in friction systems across machinery manufacturing, transportation, chemical engineering, and instrumentation industries. They can replace a large amount of precious non-ferrous metals, simplify processing procedures, reduce costs, improve labor productivity, and extend the service life of machinery. Friction performance mainly refers to the friction coefficient of the material, while wear performance primarily refers to the continuous loss of the material's surface during the friction process.

Stuck on formulations? Troubled by abnormal performance? Confused by updated standards? Unable to respond to customers' doubts? ... In the world of polymer materials, is there always some "roadblock" problem in every step of R&D, production, quality control, and procurement that makes you rack your brains and lose sleep? You search hard in the ocean of information, but can't find the authoritative answer that "just hits the spot"?

On August 1, 2025, the State Administration for Market Regulation (National Administration of Standardization) officially approved and released the mandatory national standard "Requirements for Restriction of the Use of Hazardous Substances in Electrical and Electronic Products" (GB 26572-2025), which will be formally implemented on August 1, 2027.

To actively respond to the global trend of climate change, China has vigorously promoted the dual-carbon strategy. Against this backdrop, a special fund for energy conservation and carbon reduction was specifically established under the central budgetary investment in 2025. This policy tool aims to enable energy conservation and carbon reduction projects to obtain national financial support, improve the efficiency of the use of central funds, and play a role in leveraging investment in the dual-carbon field where market resource allocation is limited. At the same time, it comprehensively helps enterprises reduce energy consumption and carbon emissions, and builds a new pattern of green and low-carbon development in society.

The Poisson's ratio of plastics is a key parameter in the mechanical properties of materials. It describes the relationship between transverse strain and longitudinal strain when a material is subjected to uniaxial tension or compression. The value range of Poisson's ratio (usually denoted by the symbol ν) is generally between 0 and 0.5, and for most plastic materials, their Poisson's ratio is typically between 0.3 and 0.4.

In the research and development, production, and quality control of polymer materials, mechanical property testing is a key link in evaluating material performance. Indicators such as tensile strength, elongation at break, and notched impact strength can directly reflect the mechanical properties of materials, and these data directly affect product design, process optimization, and quality judgment. However, many laboratories often face a common problem in actual testing: poor repeatability of test results. For the same material and the same test item, the data from multiple tests vary significantly. Such fluctuations not only delay the research and development progress but also may lead to misjudgment of quality. The reasons for this, in addition to obvious factors such as equipment accuracy, environmental temperature and humidity, and personnel operation, the hidden impacts of the material's own characteristics and the sample preparation process are often underestimated.

Ultraviolet-visible spectrophotometry, also known as ultraviolet and visible absorption spectroscopy, is a method that uses a continuous spectrum of electromagnetic waves in the ultraviolet-visible region (usually 200-800 nm) as the light source to irradiate samples, aiming to study the relative intensity of light absorption by substance molecules. Molecules or groups in a substance absorb the energy of incident ultraviolet-visible light, and the electronic transition between energy levels produces a characteristic ultraviolet-visible spectrum, which can be used to determine the structure of compounds and characterize their properties. Ultraviolet-visible absorption spectroscopy is widely applied in fields such as chemistry, materials science, biology, medicine, food science, and environmental science

Compared to traditional internal combustion engine vehicles, coolant may be utilized in all three major thermal management systems of new energy battery electric vehicles (BEVs) - the air conditioning system, electric drive system, and battery system. As the cooling medium for the vehicle's thermal management system, the performance of the coolant directly impacts the efficiency and effectiveness of the entire thermal management system. Consequently, the selection and application of coolants have become increasingly critical and are receiving growing attention from BEV manufacturers