Abstract: With the growing global demand for high-performance materials, carbon fiber materials have been widely used in aerospace, automotive manufacturing, sports equipment and defense technology due to their unique lightweight, high strength and high stiffness characteristics. However, the rapid development of the carbon fiber industry has also brought a series of environmental, social and governance challenges that pose potential threats to the long-term sustainable development of the industry. In the environmental dimension, the production process of carbon fiber involves high energy consumption and high emission, which affects the environmental sustainability. Although carbon fiber products help to reduce energy consumption and greenhouse gas emissions during their life cycle, the ecological footprint in their production process cannot be ignored. In addition, the recycling and recycling technology of carbon fiber waste is not yet mature, which puts forward a new topic for the development of environmental protection and circular economy. In terms of social dimension, the rapid development of carbon fiber industry has put forward new requirements for the labor market, but also has an impact on the health and safety of workers, the quality of life of the community and the social fairness. The public is paying more and more attention to the environmental and social impact of carbon fiber products, which requires the industry to pursue economic benefits as well as assume corresponding social responsibilities. In the governance dimension, as global investors and consumers attach great importance to CSR and sustainable development, the ESG performance of enterprises has gradually become an important indicator to measure their long-term value. Carbon fiber enterprises need to establish a sound governance structure, improve operational transparency, strengthen risk management, and actively fulfill their social responsibilities on the basis of complying with laws and regulations, so as to improve their sustainable development ability. In view of this, this paper aims to deeply analyze the sustainable development status and challenges of the carbon fiber industry from the perspective of environment, society and governance (ESG), and discuss the future development direction of the industry. Through a comprehensive evaluation of the ESG performance of the carbon fiber industry, this paper will put forward strategic suggestions to promote the sustainable development of the industry, in order to provide reference for policy makers, business managers and investors.

Abstract: Polypropylene (PP) composites are often enhanced with fillers to meet industry demands and reduce costs, improving both mechanical properties and cost-effectiveness. This study explores a PP composite with a negative ion releasing agent, prepared in varying amounts. Tests revealed that increased agent content improved Young’s modulus and yield strength but decreased elongation at break and impact toughness. Thermal stability was also significantly enhanced. The composite offers strong mechanical properties, improved conductivity, antioxidant capacity, and thermal stability, making it suitable for electronics, medical devices, and other industrial applications. These advantages highlight its potential for further development in high-performance PP composites.

Abstract: This study explores the development and application of gallium based liquid metal silicon composite materials in battery packs, addressing their mechanical, electrical, and electromagnetic shielding properties. The rapid development of electric vehicles and renewable energy technologies requires improving the performance and safety of battery systems. Gallium based liquid metals are renowned for their excellent conductivity and thermal properties, but they face challenges such as oxidation and flow control. To alleviate these issues, we studied a composite material of gallium and silicon, which is a polymer known for its insulation and heat resistance. The preparation process involves mixing gallium with silica gel and carbon black, followed by a systematic mold creation and curing process. Characterization techniques such as scanning electron microscopy (SEM), electrical signal analysis, and mechanical testing are used to evaluate the microstructure and properties of composite materials. The results showed that the integration of gallium significantly improved the tensile strength and elongation at break, with the best performance observed at the Ga6 mass fraction. In addition, composite materials exhibit responsive electrical behavior under pressure and strain, indicating their potential for real-time monitoring applications in battery systems. Electromagnetic shielding assessment reveals strong protection against electromagnetic interference over a wide frequency range, highlighting the multifunctionality of composite materials in different operating environments. Overall, gallium based liquid metal silicon composite materials are expected to improve the safety, reliability, and performance of battery packs, paving the way for future research on optimizing the material composition of advanced energy storage solutions.