Core Viewpoint - Lightweight materials can achieve product weight reduction, providing both economic and environmental benefits. Currently, mainstream lightweight materials with growth potential include aluminum alloys, magnesium alloys, glass fibers, and carbon fibers [2]. Group 1: Lightweight Materials Overview - Lightweight materials are essential for promoting sustainability across various fields, with applications expanding horizontally [8][10]. - The main categories of lightweight materials include lightweight metals, engineering plastics, and composite materials [16][18]. Group 2: Aluminum Alloys - Aluminum alloys are widely used lightweight materials, with applications in construction, automotive, machinery, and electronics. The transportation sector accounts for over half of the market share [21]. - In 2023, China's total aluminum consumption reached 47.86 million tons, a historical high, increasing by 7.6% from 2022 [28]. - The automotive industry is a key driver of aluminum alloy demand growth, with electric vehicles requiring more aluminum due to added battery weight [21][33]. Group 3: Magnesium Alloys - Magnesium prices have been declining, which may lead to broader applications in the automotive industry. Magnesium alloys are 15%-20% lighter than aluminum alloys and possess superior mechanical properties [2]. Group 4: Glass Fibers - The increasing proportion of high-value wind power and electronic fibers may boost the demand structure upgrade in the glass fiber industry. The growth rates for glass fibers in wind power and electronics are estimated at 18.2% and 7.14%, respectively, both exceeding the industry average [3]. Group 5: Carbon Fibers - Carbon fibers are expected to benefit from demand growth in emerging fields such as wind energy, photovoltaic thermal fields, and hydrogen storage. The demand for carbon fibers in wind energy is projected to grow at a compound annual growth rate of about 25% from 2021 to 2025 [3].
轻量化材料深度:铝合金、镁合金、玻璃纤维和碳纤维(附94页PPT)
材料汇·2025-09-10 15:29