造纸术，是我国引以为傲的古代四大发明之一。 然而，我国却曾因"一张纸"，被西方国家卡过脖子。 这张纸就是芳纶纸。 芳纶纸不是普通的纸，而是一种高分子聚合材料。 虽然看上去跟纸张区别不大，却是世界三大高性能纤维材料之一，全称为"聚芳酰胺纤维纸"。 芳纶纸 制造芳纶纸，需要先得到芳纶高分子纤维。 根据分子结构的不同，最常见的有两种：芳纶1313（PPTA）和芳纶1414（PMTA）。 前者也被称作间位芳纶，后者被称作对位芳纶。 两者结构相似，但性质和用途不同。 两种芳纶纤维的化学结构 比较成熟的工艺是低温聚合法。 这种方法消耗的有机溶剂少，反应需要的设备比较易得，操作步骤简单，生产效率较高，使用范围广泛。 比较新的方法是界面聚合法。这种工艺比较复杂，控制比较难，对设备要求高，所以投资比较大。 美国杜邦公司采用的是低温聚合法，日本帝人公司则采用界面聚合法。 此外还有乳液聚合法和气相聚合法等，但相对少见。 从芳纶纤维到芳纶纸的制作流程 芳纶纸实际上是一种无纺布。 把芳纶纤维混合分散，用湿法成型后，再通过热压工艺就可以制成芳纶纸了。 芳纶纤维在自然界中不存在，只能靠人工合成来得到这种线性纤维，不同类型的芳纶纤维，制作方 ...

Group 1: Financial Performance - The company achieved a revenue of 360 million CNY in Q1 2025, with a net profit attributable to shareholders of approximately 37.3 million CNY, reflecting a year-on-year growth of 12.84% [6] - The total equity attributable to shareholders reached approximately 2.797 billion CNY, marking a year-on-year increase of 27.39% [6] - The gross margin for ultra-high molecular weight polyethylene fiber business improved from 11% to 28% [6] Group 2: Export Business Impact - In 2024, the company's overall export business accounted for 25.49% of total revenue, with a minimal contribution from exports to the U.S. [7] - The company plans to enhance R&D investment in core products to improve market competitiveness and adapt to external policy changes [7] Group 3: New Materials Business Growth - The new materials segment is becoming a core growth driver, with significant production of ultra-high molecular weight polyethylene fibers and increased orders in deep-sea economic sectors [8] - The company is set to launch an 80,000-ton high-performance nylon filament project in November 2024, which is expected to boost production capacity [8] Group 4: Product Development and Applications - Ultra-high molecular weight polyethylene fibers are being developed for various applications, including robotics, marine ropes, and protective gear, with significant advancements in product performance [10] - The company has made breakthroughs in key technologies for nylon fibers, targeting applications in both civilian and industrial sectors [10] Group 5: Competitive Advantages - The ultra-high molecular weight polyethylene fibers are positioned as high-end products, competing with international leaders in terms of quality and specifications [12] - The company has patented methods to control creep in fiber usage, enhancing the performance of materials used in robotic tendons [12]