polyurethanes

简明释义

英[ˌpɒl.jʊəˈrɛθ.eɪnz]美[ˌpɑl.jʊˈrɛθ.eɪnz]

n. [高分子]聚氨酯；聚亚安酯（polyurethane 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Dip coating method was used to prepare the polyether polyurethanes coating on coronary stents.

利用浸涂方法在不锈钢冠脉支架表面制备出聚醚聚氨酯涂层。

2.The influence of some raw materials such as polyester, the uniformity, vesicant foams and catalysts to the preparation of rigid polyurethanes foam is also discussed.

探讨了聚酯多元醇、泡沫稳定剂、发泡剂及催化剂等原料对硬质聚氨酯泡沫塑料制备的影响。

3.The results indicated that the microphase separation degree of polyether-type waterborne polyurethanes was higher than that of polyester-type waterborne polyurethanes.

实验结果表明：聚醚型水性聚氨酯的微相分离程度高于聚酯型水性聚氨酯。

4.A few of auxiliaries such as polyurethanes coating agents, detergents are influenced by certain inherent aromatic amide.

某些印染助剂也受到个别致癌芳香胺的影响，如聚氨酯涂层剂、净洗剂等。

5.Polyurethanes are popularly used in cardiovascular and other biomedical fields due to their good biocompatibility as well as mechanical properties.

聚氨酯因有良好的生物相容性和机械性能，而被广泛用于生物医学领域。

6.Emphasis will be primarily on reactive, moisture curing polyurethanes that are applied as one-component liquids, hot melts and binders for wood composition board.

重点讨论单组分液体型、热熔型和木材复合板粘接用反应型、湿气固化聚氨酯胶粘剂。

7.The automotive industry utilizes polyurethanes in seat manufacturing for comfort and durability.

汽车行业在座椅制造中利用聚氨酯以提高舒适性和耐用性。

8.Coatings made from polyurethanes provide a protective layer against scratches and UV damage.

由聚氨酯制成的涂层提供了防刮擦和紫外线损伤的保护层。

9.The furniture industry often uses polyurethanes to create durable and comfortable cushions.

家具行业经常使用聚氨酯来制造耐用且舒适的垫子。

10.In construction, polyurethanes are used as insulation materials to improve energy efficiency.

在建筑中，聚氨酯被用作绝缘材料，以提高能源效率。

11.Many athletic shoes are made with polyurethanes for better flexibility and support.

许多运动鞋使用聚氨酯以提供更好的灵活性和支撑。

作文

Polyurethanes are a versatile class of polymers that have become increasingly important in various industries due to their unique properties. These materials, known for their durability, flexibility, and resistance to abrasion, are used in a wide range of applications, from furniture cushions to automotive parts. The term polyurethanes (聚氨酯) refers to a group of synthetic materials formed by the reaction of polyols and isocyanates. This chemical process results in a material that can be tailored to meet specific performance requirements, making polyurethanes (聚氨酯) an ideal choice for many products.One of the primary advantages of polyurethanes (聚氨酯) is their ability to be produced in various forms, including foams, elastomers, and coatings. Flexible foams are commonly used in mattresses and upholstery, providing comfort and support. Rigid foams, on the other hand, are utilized in insulation materials, helping to improve energy efficiency in buildings. The adaptability of polyurethanes (聚氨酯) allows manufacturers to create products that meet diverse consumer needs while maintaining high performance standards.In addition to their versatility, polyurethanes (聚氨酯) are also known for their excellent mechanical properties. They exhibit high tensile strength, tear resistance, and resilience, making them suitable for demanding applications such as automotive seating and industrial components. Furthermore, polyurethanes (聚氨酯) can be engineered to withstand harsh environmental conditions, including exposure to chemicals, UV radiation, and extreme temperatures.The environmental impact of polyurethanes (聚氨酯) has been a topic of discussion in recent years. While traditional polyurethanes (聚氨酯) are derived from petrochemical sources, advances in technology have led to the development of bio-based alternatives. These sustainable options utilize renewable resources, such as plant oils, to create polyurethanes (聚氨酯), reducing the reliance on fossil fuels and lowering carbon footprints. As consumers become more environmentally conscious, the demand for eco-friendly polyurethanes (聚氨酯) continues to grow.Moreover, the recycling of polyurethanes (聚氨酯) is gaining attention as a means to mitigate waste. Innovative methods are being explored to reclaim and repurpose polyurethanes (聚氨酯) at the end of their lifecycle, contributing to a circular economy. By finding ways to recycle these materials effectively, industries can minimize their environmental impact and promote sustainability.In conclusion, polyurethanes (聚氨酯) represent a remarkable category of materials with a wide array of applications across multiple sectors. Their unique properties, including flexibility, durability, and adaptability, make them an essential component in modern manufacturing. As the industry evolves, the focus on sustainability and recycling will shape the future of polyurethanes (聚氨酯), ensuring they remain a viable option for consumers and manufacturers alike. Understanding the significance of polyurethanes (聚氨酯) is crucial for anyone interested in materials science, engineering, or environmental studies, as they play a pivotal role in both current technologies and future innovations.

聚氨酯是一类多功能的聚合物，由于其独特的性能，越来越在各个行业中变得重要。这些材料以其耐用性、灵活性和耐磨损性而闻名，广泛应用于从家具垫到汽车零件的各种产品中。术语聚氨酯（polyurethanes）指的是通过聚醇和异氰酸酯反应形成的一组合成材料。这一化学过程产生的材料可以根据具体的性能要求进行定制，使得聚氨酯（polyurethanes）成为许多产品的理想选择。聚氨酯（polyurethanes）的主要优势之一是它们可以以多种形式生产，包括泡沫、弹性体和涂层。柔性泡沫通常用于床垫和家具，为用户提供舒适和支持。另一方面，刚性泡沫用于绝缘材料，帮助提高建筑的能效。聚氨酯（polyurethanes）的适应性使制造商能够创造出满足不同消费者需求的产品，同时保持高性能标准。除了多功能性，聚氨酯（polyurethanes）还以其优良的机械性能而著称。它们表现出高拉伸强度、撕裂阻力和弹性，使其适合于如汽车座椅和工业组件等要求严格的应用。此外，聚氨酯（polyurethanes）可以被设计为能够承受恶劣的环境条件，包括接触化学品、紫外线辐射和极端温度。近年来，聚氨酯（polyurethanes）的环境影响成为讨论的热点。虽然传统的聚氨酯（polyurethanes）源自石油化工，但技术的进步导致了生物基替代品的发展。这些可持续选项利用可再生资源，如植物油，来生产聚氨酯（polyurethanes），减少对化石燃料的依赖，并降低碳足迹。随着消费者环保意识的增强，对生态友好型聚氨酯（polyurethanes）的需求不断增长。此外，聚氨酯（polyurethanes）的回收也日益受到关注，作为减轻废物的一种手段。正在探索创新的方法，以有效回收和再利用使用寿命结束的聚氨酯（polyurethanes），为循环经济做贡献。通过找到有效回收这些材料的方法，行业能够减少其环境影响，促进可持续发展。总之，聚氨酯（polyurethanes）代表了一类卓越的材料，在多个领域具有广泛的应用。其独特的性能，包括灵活性、耐用性和适应性，使其成为现代制造中的重要组成部分。随着行业的发展，对可持续性和回收利用的关注将塑造聚氨酯（polyurethanes）的未来，确保它们仍然是消费者和制造商的可行选择。理解聚氨酯（polyurethanes）的重要性对于任何对材料科学、工程或环境研究感兴趣的人来说都是至关重要的，因为它们在当前技术和未来创新中发挥着关键作用。