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

In the exploration of the microscopic world, the Scanning Electron Microscope (SEM) has long been an indispensable tool for scientists to investigate material surfaces and internal structures. With technological advancements, the Field Emission Scanning Electron Microscope (FESEM) has emerged as a standout member of the SEM family, renowned for its exceptional performance.

Which one is the molecular weight result? Why are there so many molecular weights? Why are GPC results so complex and diverse.

Modal simulation analysis and testing were conducted on the oil pan using a multi-scale joint simulation method. The trend of the experimental results is consistent with the simulation results, and the obtained results can provide reference for the vibration analysis of composite material components.

The rotational rheometer is the most widely used rheological measuring instrument in the field of materials, which can study the flow and deformation characteristics of samples ranging from low viscosity fluids to high-strength solids.

Based on the PLA/PHA blend system as the core, combined with multidimensional tests such as accelerated aging and formulation compatibility, the performance evolution law of the material during its lifecycle is revealed.

Establishing a scientifically comprehensive reliability evaluation system and predicting its performance degradation under complex working conditions in advance has become a key prerequisite for ensuring the long-term stable operation of new energy and electronic equipment.

CFC (Multifunctional Polyolefin Analysis and Characterization Instrument) is a combined full-automatic analyzer using temperature rise leaching classification technology and gel permeation chromatography technology, which can realize the measurement of bivariate distribution.