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 导语： 作为工程塑料中的"贵族"，尼龙66（PA66）曾因核心原料己二腈被国外长期垄断而"高不可攀"。然而，随着 国产技术的突 破和百万吨级产能 的规划，这道坚固的护城河正在消融。2024年，尼龙66行业走到了一个关键的转折点。 第一部分：行业概要——工程塑料的"皇冠明珠" 1.1 尼龙66的定义与微观视界 聚酰胺66（Polyamide 66，简称PA66），俗称尼龙66，是一种由己二酸（Adipic acid）和己二胺（Hexamethylene diamine）通过缩聚反应生成的半结晶型热塑性树脂。 从分子结构上看， PA66之所以被称为" 工程塑料之王" ，源于其对称的分子链结构。每一个重复单元中含有6个碳原子，这 种高度对称性赋予了它极高的结晶度。分子链间形成的致密 氢键网络 ，就像是一把把微观层面的"锁"，锁住了材料的物理 性能，使其在高温、摩擦和受力环境下依然能保持极佳的形状稳定性。 1.2 跨越世纪的华章：PA66的发展历程 尼龙66的历史不仅是化工史的缩影，更是人类合成材料科技进步的里程 ...

在引领产业高端迈进方面，中国石化先进乙烯技术突破和产业化，使我国打破国外乙烯技术的垄断，并 率先在世界上全面掌握轻质原料、重质原料及高含烯烃原料裂解技术。己内酰胺法高品质己二胺关键技 术开发与产业化拓展了乙内酰胺产品应用新途径，着力提升了产业链自主可控能力和供应链安全水平。 维生素D3系列产品绿色合成技术填补了化学法生产25-羟基维生素D3的国际空白，并拥有了完整的维生 素D3产业链。 在推动绿色低碳发展方面，多酶协同催化体系及生物基产品绿色制造技术创新与产业化实现了大宗化学 品低成本、规模化、清洁化生产工艺开发。大型多相反应过程微纳传质强化新技术在百万吨级加氢、数 十万吨级羰基化和空气氧化等生产装置上得到规模化应用，在多个产品领域打破国际巨头的垄断。 在提升装备自主化水平方面，长寿命大型乙烯裂解反应器设计制造与维护技术为国家百万吨级乙烯重大 工程建设和乙烯裂解装置安全稳定运行作出了重要贡献。面向搅拌式硫酸烷基化的绿色分离方法及成套 装备革新了传统的碱洗、水洗工艺，实现了绿色低碳变革。 中化新网讯在12月24日召开的2025全国石油和化工科技创新大会上，中国石油和化学工业联合会党委书 记、会长李云鹏总结了"十 ...

1.1 尼龙66的定义与微观视界 聚酰胺66（Polyamide 66，简称PA66），俗称尼龙66，是一种由己二酸（Adipic acid）和己二胺（Hexamethylene diamine）通过缩聚反应生成的半结晶型热塑性树脂。 从分子结构上看， PA66之所以被称为" 工程塑料之王" ，源于其对称的分子链结构。每一个重复单元中含有6个碳原子，这 种高度对称性赋予了它极高的结晶度。分子链间形成的致密 氢键网络 ，就像是一把把微观层面的"锁"，锁住了材料的物理 性能，使其在高温、摩擦和受力环境下依然能保持极佳的形状稳定性。 1.2 跨越世纪的华章：PA66的发展历程 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 导语： 作为工程塑料中的"贵族"，尼龙66（PA66）曾因核心原料己二腈被国外长期垄断而"高不可攀"。然而，随着 国产技术的突 破和百万吨级产能 的规划，这道坚固的护城河正在消融。2024年，尼龙66行业走到了一个关键的转折点。 第一部分：行业概要——工程塑料的"皇冠明珠" 尼龙66的历史不仅是化工史的缩影，更是人类合成材料科技进步的里程 ...

Group 1 - The core viewpoint of the article is that Ascend Performance Materials has successfully received approval for its Chapter 11 restructuring plan, which is a significant milestone in reducing its debt and strengthening its capital structure for future development [1] - The restructuring process is expected to be completed by the end of the year, allowing the company to enhance its risk resilience and market competitiveness [1] - Ascend Performance Materials filed for Chapter 11 on April 22, 2025, to lower its leverage while continuing to serve approximately 1,650 global customers [1] Group 2 - On June 17, Ascend announced the orderly closure of its hexamethylenediamine production facility in Lianyungang, China, which was its largest investment outside the U.S. with a total investment of approximately 4.2 billion yuan [2] - The Lianyungang facility, which had only been operational for 8 months, was deemed not viable in the changing market dynamics and regulatory environment [2] - Ascend operates 12 production bases globally, employing nearly 3,000 people, and has significant nylon production capacities, including 700,000 tons/year of nylon 66 polymerization and 490,000 tons/year of adiponitrile [2]

Core Viewpoint - The company is implementing a strategic initiative called "East Introduction, West Advancement, and Overseas Expansion" to optimize its industrial layout and enhance competitiveness in various markets [1][5][8]. Group 1: East Introduction - The company focuses on enhancing innovation capabilities by leveraging high-quality resources from eastern regions, driving traditional industries towards high-end, green, and intelligent transformation [2]. - Collaborations with leading enterprises, such as a joint venture with a global leader in nylon66 fiber, aim to improve the competitiveness of the industrial chain [3]. Group 2: West Advancement - The company is integrating regional resources in western areas, particularly in Xinjiang, Ningxia, and Inner Mongolia, to develop coal, electricity, and nylon integrated projects, thereby addressing challenges related to resource depletion and cost pressures [5][6]. - Significant projects in Xinjiang, including coal mining and power generation, are expected to generate substantial revenue and create thousands of jobs [7]. Group 3: Overseas Expansion - The company is shifting its strategy from merely exporting products to exporting capacity and brand, focusing on overseas markets such as Tajikistan and Thailand [8][9]. - In Tajikistan, the company is enhancing coal production capacity significantly, while in Thailand, it is establishing a facility to cater to the growing industrial market in Southeast Asia [8][9].

Group 1 - The core viewpoint of the article highlights the restructuring plan of Ascend Performance Materials, which has been approved by the U.S. Bankruptcy Court for the Southern District of Texas, aiming for a healthier capital structure by the fourth quarter of 2025 [2][3] - Ascend is set to receive over $500 million in new capital from investors, which will significantly reduce its debt leverage and support long-term stable growth [2] - The company announced its entry into bankruptcy reorganization in April 2023 to cut debt and optimize its capital structure, and it has decided to orderly close its largest investment outside the U.S. in Lianyungang, China [2][3] Group 2 - As one of the top three nylon 66 producers globally, Ascend has significant technological accumulation in high-performance materials, focusing on providing solutions for automotive, energy, and medical sectors [3] - The closure of the factory and the bankruptcy restructuring may represent a strategic choice for the company to "cut off limbs to survive" and operate with a leaner structure [3]

Group 1 - The core project involves the construction of a coal-based high-end new materials project by Ningxia Carbon Composite New Materials Co., Ltd., located in the Ningdong Energy and Chemical Base, covering an area of 2870 acres with a total investment of 1,520 million yuan, including 159.75 million yuan for environmental protection [2] - The main production capacity of the project includes 600,000 tons/year of caprolactam, 500,000 tons/year of hexamethylenediamine, 300,000 tons/year of nylon 66 chips, and 36,000 tons/year of hydrogen [2] - Ningxia Carbon Composite New Materials Co., Ltd. was established on March 5, 2025, and is located in the Ningdong Energy and Chemical Base, focusing on the production of chemical products and the sale of coal and its products [2] Group 2 - Ningxia Baoting New Materials Technology Co., Ltd. was established on January 6, 2016, with a registered capital of 510 million yuan, specializing in the field of chemical new materials, focusing on the recycling of coal tar and low-carbon alkanes [3] - The company produces high-purity hydrogen and aromatic products such as benzene, toluene, and xylene [3]

Core Viewpoint - The launch of a nylon new materials project by Xinhecheng in Tianjin, with a total investment of approximately 10 billion yuan, is seen as a significant move to reshape the competitive landscape in the high-value new materials sector in China [2][3]. Investment Project Details - The project utilizes proprietary technology to establish an integrated industrial chain of "adiponitrile - hexamethylenediamine - nylon 66" [2][3]. - The total investment is around 10 billion yuan, covering an area of approximately 380,000 square meters, and will be implemented in two phases [3]. - Phase one involves an investment of about 3 billion yuan to build a 100,000 tons/year "adiponitrile - hexamethylenediamine" project, while phase two will invest around 7 billion yuan to construct a 400,000 tons/year nylon 66 project [3]. Market Impact - The project is expected to reduce the domestic reliance on imports for key materials, with projections indicating that the self-sufficiency rate for nylon 66 could increase from 40% to 70% post-project [7]. - The price of adiponitrile has significantly decreased from a peak of 80,000 yuan/ton in 2017 to around 20,000 yuan/ton currently, representing a 75% decline [5][6]. - The domestic adiponitrile market size is projected to grow from 3.737 billion yuan in 2023 to 4.415 billion yuan by 2025 [6]. Competitive Landscape - The project is anticipated to enhance Xinhecheng's market position and competitiveness in the new materials sector, which currently has a relatively small revenue contribution from this business line [6]. - The entry of domestic companies into the adiponitrile market is expected to disrupt the current oligopoly held by a few international chemical companies, providing more options in the global market [6]. - The industry is likely to see a shift from competing for import quotas to competing on integrated profit margins, leading to a higher concentration of market power among leading firms [7].

Group 1 - The core project of Tianjin Xinhengcheng Material Technology Co., Ltd. has officially started pile foundation construction, with a total investment of approximately 10 billion yuan and covering an area of about 380,000 square meters [2] - The first phase of the project plans to invest about 3 billion yuan to build a 100,000 tons/year caprolactam-caprolactam project using self-developed technology [2] - The second phase of the project is expected to invest about 7 billion yuan, planning to build a 400,000 tons/year caprolactam-caprolactam project and a 400,000 tons/year nylon 66 project [2] Group 2 - Xinhengcheng has established several projects in the nylon field, including a 200,000 tons/year PA66 project and a 100,000 tons/year caprolactam project in Shandong [3] - The company reported a revenue of 11.1 billion yuan for the first half of 2025, a year-on-year increase of 12.8%, with a net profit of 3.6 billion yuan, up 63.5% [3] - The new materials business generated revenue of 1.038 billion yuan, accounting for 9.35% of total revenue, with a year-on-year increase of 43.75% [3]

Core Viewpoint - The SynBioCon 2025 conference aims to facilitate the transformation of scientific achievements into industrial applications, focusing on synthetic biology and green manufacturing [2][17]. Group 1: Conference Overview - The fourth Synthetic Biology and Green Manufacturing Conference (SynBioCon 2025) will be held from August 20-22 in Ningbo, Zhejiang [2][17]. - The event is organized by DT New Materials and supported by various academic and industrial organizations, emphasizing the development of industry ecosystems and technology transfer [2][17]. - The conference will feature over 100 innovative synthetic biology manufacturing achievements, promoting efficient technology transfer within the industry [2]. Group 2: Featured Projects - A project from Chongqing University focuses on a bio-manufacturing platform for bio-based materials, addressing the shortage of key monomers like hexamethylenediamine, succinic acid, and butanediol in China [7][8]. - The project utilizes advanced metabolic engineering to create a bacterial cell factory capable of producing 1,4-succinic acid with a yield of approximately 145.9 g/L and a sugar-to-acid conversion rate of 0.97 g/g, showcasing world-leading production efficiency [8][9]. Group 3: Technical Advantages - The 1,4-succinic acid production process benefits from optimized bacterial strains, shorter reaction times, lower temperatures, and cost-effective technical routes, leading to higher yields and lower costs [9]. - The 1,4-butanediol production process leverages Pichia pastoris, which is genetically stable and efficient in expressing foreign proteins, with a cost-effective acidic fermentation process [10]. Group 4: Intellectual Property and Collaboration - The project holds patents for the recombinant plasmids and engineered strains used in the production of succinic acid and hexamethylenediamine, indicating a strong intellectual property position [11]. - Collaboration with companies such as Yantai Wanhua Chemical and Guangdong Kingfa Technology is established, inviting further partnerships for technology transfer [13].