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 ...

WILMINGTON, Del., Aug. 21, 2025 /PRNewswire/ -- DuPont (NYSE: DD) today announced that it has won three 2025 R&D 100 Awards in the Mechanical/Materials category. The R&D 100 Awards, sponsored by R&D World Magazine, recognizes the 100 most innovative technologies of the previous year. DuPont™, the DuPont Oval Logo, and all trademarks and service marks denoted with ™, SM or ® are owned by affiliates of DuPont de Nemours, Inc. unless otherwise noted. SOURCE DuPont "We're honored that three of our innovative te ...

Group 1: Market Overview - A new wave in the technology sector is emerging, focusing on the necessity of building new infrastructure to support increased electricity demand from data centers and AI capabilities [1][2] - The onshoring of artificial intelligence in the U.S. is driving the need for enhanced energy infrastructure to meet the demands of cloud computing and AI model training [2] Group 2: Company Insights - DuPont de Nemours Inc. is highlighted as a key player in the construction of data centers, with its products being essential for industrial applications in infrastructure projects [3][5] - DuPont's stock is currently trading at 78% of its 52-week high, presenting a significant opportunity for recovery as it approaches historically proven valuation levels [4] - Vanguard Group increased its holdings in DuPont by 1.6%, bringing their total position to $3.3 billion, indicating strong investor confidence [6] - Analysts have a consensus Moderate Buy rating for DuPont, with a price target of $88.3 per share, while some analysts project a higher valuation of $94 per share, suggesting a potential rally of about 35% [7][8] Group 3: Caterpillar Insights - Caterpillar Inc. is positioned as a critical player in new infrastructure buildouts, with a current stock price that reflects bullish sentiment [9][10] - The consensus rating for Caterpillar is also Moderate Buy, with a fair value estimate of $444 per share, while some analysts project a valuation exceeding $500 per share, indicating a potential upside of approximately 27% [11] - Short interest in Caterpillar has declined by 8.3% over the past month, signaling a shift in market sentiment regarding the demand for data center construction [12] Group 4: Martin Marietta Insights - Martin Marietta Materials is essential for commercial construction, trading at 95% of its 52-week high, reflecting its role in the early stages of infrastructure projects [14][16] - Analysts currently rate Martin Marietta as a Moderate Buy with a fair value of $620.8 per share, while some see it valued at $700 per share, suggesting a potential upside of 16.6% [16][17] - Geode Capital recently built a position worth $831.3 million in Martin Marietta, indicating strong institutional interest [17]

点击 最 下方 关注《材料汇》 ， 点击"❤"和" "并分享 添加 小编微信 ，寻 志同道合 的你 正文 高性能纤维产业发展的背景需求及战略意义 高性能纤维是指对外界的物理和化学作用具有特殊耐受能力的一类特种纤维，是近年来化学纤维工 业的主要发展方向之一，按照化学组成可分为有机高性能纤维和无机高性能纤维。高性能纤维不但 是发展航空航天和国防工业迫切需要的重要战略物资，而且在推进各类战略性新兴产业和低碳经 济、节能减排中起着不可替代的作用，是体现一个国家综合实力和技术创新的标志之一。日本、美 国和欧洲发达国家高度重视并长期垄断着全球高性能纤维的研发、 生产和市场。2 0 0 6年以来，在 国家政策和财政的重点支持下，我国高性能纤维产业发展迅速， 建立了较为完整的国产高性能纤 维制备技术研发、工程实践和产业体系，大幅缩短了与发达国家的差距，有效缓解了国民经济和国 防建设对高性能纤维的迫切需求。以下对常见高性能纤维进行介绍。 对位芳纶具有轻质、高强、高韧、耐高温、透波、抗冲击和耐磨等优异的性能，在光缆增强、防弹装 甲、石棉替代、个体防护等领域有着广泛的应用。 全球对位芳纶市场属于典型的寡头垄断局面，北美 和欧洲属于 ...

Group 1 - DuPont de Nemours, Inc. (NYSE: DD) stock increased by over 3% following the release of its second quarter earnings, which exceeded expectations in revenue and earnings [1] - The company reported stronger margins compared to previous periods and raised its guidance for future performance [1] - Overall, the earnings release checked all the boxes, indicating a positive outlook for the company [1]

Core Viewpoint - DuPont has reported significant growth in its latest financial results, contrasting with the declining profits of other major companies in the industry, following the suspension of an antitrust investigation by the State Administration for Market Regulation on July 22 [2][3]. Financial Performance - DuPont's Q2 2025 financial report shows net sales of $3.3 billion, a year-on-year increase of approximately 3.1%. The income from continuing operations under US GAAP is $238 million, up 35% year-on-year, and operating EBITDA is $859 million, reflecting an 8% growth [3]. - The electronics segment experienced a 6% growth in net sales and organic sales, with an EBITDA margin of 31.9%. The semiconductor technology business benefited from AI applications and a recovery in the semiconductor market, achieving low double-digit organic growth, particularly driven by demand for advanced node chip materials and significant contributions from the Chinese market [3]. - The healthcare and water treatment markets also showed recovery, leading to low single-digit organic growth, with net sales and organic sales increasing by 1% and an EBITDA margin of 24.4% [3]. Strategic Adjustments - DuPont is progressing with the spin-off of its electronics business, now named Qnity, with plans for formal separation on November 1, 2025. This move, along with potential divestitures of low-growth businesses, aims to unlock approximately $9 billion in potential value and strengthen the parent company's focus on core areas such as water treatment and healthcare [4]. Market Context and Challenges - DuPont's impressive performance is attributed to its strategic focus on high-value new industries while reducing reliance on traditional energy sectors, which are currently facing challenges in Europe. The company is also actively managing costs through strategic adjustments [5]. - However, like other major companies, DuPont faces several global challenges, including weak demand in industrial sectors such as construction and automotive, particularly in North America, as well as fluctuations in energy and raw material costs, supply chain uncertainties, and global trade tensions [5]. Regulatory Issues - Recently, DuPont, along with Chemours and Corteva, reached a significant environmental settlement, agreeing to pay $875 million to New Jersey to resolve PFAS contamination issues. DuPont's share of this settlement amounts to approximately $177 million [6]. - PFAS compounds, known for their harmful effects on human health, have been widely used in various applications due to their unique properties. However, there is a global push towards "defluorination," with strict regulations being implemented to control PFAS pollution [9][11]. Future Outlook - Despite the challenges, the demand for PFAS in semiconductor manufacturing and the new energy battery industry is expected to grow, particularly in China, as the country aims to develop strategic emerging industries [11]. - The transition away from PFAS in the additives industry is recognized as necessary, although it faces significant short-term challenges due to established dependencies on these compounds [11].

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number: 001-38196 DUPONT DE NEMOURS, INC. (Exact name of registrant as specified in its charter) State or other jurisdiction of incorporation or organization (I.R.S. Employer Identifica ...

Financial Data and Key Metrics Changes - Second quarter sales reached $3.3 billion, growing 2% on an organic basis [8] - Operating EBITDA increased by 8% year over year to $859 million, resulting in an operating EBITDA margin of 26.4%, up 120 basis points from the prior year [8][19] - Adjusted EPS rose 15% year over year to $1.12 [8][20] Business Line Data and Key Metrics Changes - Electronics Co. net sales were $1.2 billion, up 6% year over year, driven by an 8% increase in volume [21] - Industrials Co. net sales were $2.1 billion, up 1% year over year, with 2% volume growth partially offset by a 1% decline in price [22] - Healthcare and Water Technologies saw high single-digit organic sales growth, while diversified industrial sales were down low single digits due to construction market softness [23] Market Data and Key Metrics Changes - Asia Pacific delivered 4% organic sales growth year over year, while Europe and North America saw organic sales growth of 2% and 1%, respectively [18] - The electronics segment's growth was primarily driven by AI technology demand in interconnect solutions and semiconductors [9] Company Strategy and Development Direction - The company is focused on the upcoming spin-off of Qunity Electronics, scheduled for November 1, and aims to position both companies for growth [10][12] - The new DuPont will emphasize high-growth healthcare and water markets, with plans for M&A to bolster these segments [13][71] - The company is committed to maintaining strong customer relationships and innovation to drive growth [13] Management's Comments on Operating Environment and Future Outlook - Management expressed optimism about continued strength in electronics driven by AI demand, while acknowledging ongoing weakness in the construction sector [9] - The company raised its full-year earnings guidance due to strong second-quarter performance, despite anticipated headwinds from tariffs [24] Other Important Information - A settlement with the State of New Jersey regarding environmental claims was announced, with DuPont's portion amounting to $177 million on an NPV basis [10] - The company is preparing for an Investor Day on September 18 to discuss strategies for both DuPont and Qunity [12] Q&A Session Summary Question: Insights on industrials and pricing impacts - Management clarified that the 1% price decline in industrials was primarily due to price adjustments following inflationary periods, not tied to healthcare or construction [30][31] Question: Comments on the environmental settlement - Management noted that the AFFF component of the settlement was only 1%, aligning with previous estimates and indicating a manageable future liability [39][40] Question: Growth in healthcare and water sectors - Both healthcare and water sectors experienced high single-digit growth, with management optimistic about continued growth driven by megatrends [46][68] Question: Electronics market trends - Management indicated a mixed environment in electronics, with growth primarily from AI applications, while consumer markets remain weak [53][54] Question: Future M&A plans - The focus remains on completing the spin-off, but management is actively scouting for M&A opportunities in healthcare and water sectors [71][72] Question: Tariff impacts and mitigation strategies - Over 90% of tariff impacts are being mitigated through supply chain adjustments, with some surcharges also implemented [131]

Financial Data and Key Metrics Changes - Second quarter sales reached $3.3 billion, growing 2% on an organic basis [6][15] - Operating EBITDA was $859 million, an increase of 8% year over year, resulting in an operating EBITDA margin of 26.4%, up 120 basis points from the prior year [6][17] - Adjusted EPS for the quarter was $1.12, up 15% year over year [6][19] Business Line Data and Key Metrics Changes - Electronics Co. net sales were $1.2 billion, up 6% year over year, driven by an 8% increase in volume [20] - Industrials Co. second quarter net sales were $2.1 billion, up 1% year over year, with 2% volume growth partially offset by a 1% decline in price [21][22] - Healthcare and Water Technologies saw high single-digit organic sales growth, while diversified industrial sales were down low single digits due to construction market softness [22][46] Market Data and Key Metrics Changes - Asia Pacific delivered 4% organic sales growth year over year, with Europe up 2% and North America up 1% [16] - The electronics market remains mixed, with growth primarily driven by AI applications, while consumer markets are still relatively weak [56][57] Company Strategy and Development Direction - The company is focused on the upcoming spin-off of Qunity Electronics, scheduled for November 1, aiming to position both entities for growth [8][10] - The new DuPont will emphasize high-growth healthcare and water markets, with plans for potential acquisitions to bolster these segments [12][71] - The company is committed to maintaining a strong cash flow and operational efficiency while navigating the separation process [8][24] Management's Comments on Operating Environment and Future Outlook - Management expressed optimism about continued strength in electronics driven by AI technology demand, while acknowledging ongoing weakness in the construction sector [7][24] - The company raised its full-year earnings guidance based on strong second-quarter performance, despite anticipated tariff impacts [23][24] - Management highlighted the importance of customer relationships and market positioning in driving future growth [71] Other Important Information - A settlement with the State of New Jersey regarding environmental claims was announced, with the company's portion amounting to $177 million on an NPV basis [8][41] - The company is actively pursuing M&A opportunities to enhance its healthcare and water portfolios [72] Q&A Session Summary Question: Insights on industrials and pricing impacts - Management clarified that the 1% price decline was primarily due to price adjustments following inflationary pressures, not specific to the healthcare or tieback sectors [30][31] Question: Comments on the recent settlement - Management expressed satisfaction with the settlement, noting that AFFF claims represented only 1% of the total settlement amount, aligning with previous estimates [39][41] Question: Growth in healthcare and water sectors - Both healthcare and water sectors experienced high single-digit growth, with expectations for continued outsized growth in the back half of the year [46][47] Question: Electronics market trends - Management noted that growth is primarily driven by AI applications, with expectations for gradual recovery in the broader electronics market [56][57] Question: Future M&A strategies - The focus remains on completing the spin-off of Qunity, while actively scouting for M&A opportunities in the healthcare and water sectors [72][73] Question: Tariff impacts and mitigation strategies - Over 90% of the tariff impact mitigation is attributed to supply chain movements, with some surcharges implemented to offset costs [132][133]

2Q 2025 Financial Results August 5, 2025 Overview On January 15, 2025, DuPont de Nemours, Inc. ("DuPont", or after the completion of the Intended Electronics Separation, "New DuPont") announced it is targeting November 1, 2025 to complete the intended separation of its Electronics business (the "Intended Electronics Separation") by way of a spin-off transaction, thereby creating a new independent, publicly traded electronics company ("Qnity Electronics, Inc."). The Intended Electronics Separation will not r ...