angle of contact

简明释义

接触角

英英释义

例句

1.A smaller angle of contact 接触角 indicates better adhesion of the paint on the surface.

较小的接触角 angle of contact 表示涂料在表面上的附着力更好。

2.In the experiment, we measured the angle of contact 接触角 to evaluate the hydrophobic properties of the material.

在实验中，我们测量了接触角 angle of contact 来评估材料的疏水性。

3.The angle of contact 接触角 plays a crucial role in determining the behavior of liquids on solid surfaces.

在决定液体在固体表面行为方面，接触角 angle of contact 起着至关重要的作用。

4.To improve the performance of the coating, we need to reduce the angle of contact 接触角 with water.

为了提高涂层的性能，我们需要降低与水的接触角 angle of contact 。

5.The angle of contact 接触角 between the water droplet and the leaf surface determines how well the water spreads.

水滴与叶面之间的接触角 angle of contact 决定了水的扩散程度。

作文

The phenomenon of wetting is a crucial aspect in understanding various physical and chemical processes. One important parameter that characterizes wetting is the angle of contact, which is defined as the angle formed between a liquid interface and a solid surface at the point of contact. This angle plays a significant role in determining how well a liquid spreads on a solid surface. A smaller angle of contact indicates better wetting, while a larger angle suggests poor wetting. In many applications, such as painting, coating, and adhesive bonding, the angle of contact is a key factor that affects the performance and durability of the materials involved. For instance, in the case of paint, a low angle of contact ensures that the paint adheres well to the surface, providing a smooth and uniform finish. On the other hand, if the angle of contact is high, the paint may bead up and not spread evenly, leading to an unsatisfactory appearance and potentially requiring additional coats.In addition to practical applications, the angle of contact also has significant implications in scientific research. In fields such as material science and nanotechnology, understanding the angle of contact helps researchers design surfaces with specific wettability properties. For example, superhydrophobic surfaces, which exhibit extremely high angle of contact values, can repel water effectively. These surfaces have potential applications in self-cleaning technologies, where dirt and contaminants are easily washed away by rain or water. Furthermore, the angle of contact is influenced by various factors, including surface roughness, chemical composition, and temperature. For instance, increasing the roughness of a surface can lead to a decrease in the angle of contact, enhancing wetting properties. This phenomenon is often referred to as the Cassie-Baxter state, where air pockets trapped in the surface texture contribute to improved wetting behavior.Moreover, the angle of contact is essential in biological systems as well. For example, the way water interacts with plant leaves is a critical factor for their health and survival. Many plants have evolved to have a low angle of contact with water, allowing them to efficiently collect and utilize rainwater. Understanding these natural adaptations can inspire innovative designs in biomimicry, where human-made materials mimic the properties of natural surfaces.In conclusion, the angle of contact is a fundamental concept that bridges various disciplines, from engineering to biology. Its implications are vast, affecting everything from industrial processes to ecological interactions. By studying and manipulating the angle of contact, scientists and engineers can develop new materials and technologies that enhance performance and sustainability. As our understanding of this concept deepens, we unlock new possibilities for innovation and improvement across multiple fields of study.

润湿现象是理解各种物理和化学过程的关键方面。一个重要的参数是接触角，它被定义为液体界面与固体表面在接触点形成的角度。这个角度在决定液体在固体表面上如何扩展方面发挥着重要作用。较小的接触角表示更好的润湿，而较大的角度则表明润湿不良。在许多应用中，如涂漆、涂层和粘合剂粘合，接触角是影响材料性能和耐用性的关键因素。例如，在油漆的情况下，低接触角确保油漆很好地附着在表面上，提供光滑均匀的表面。另一方面，如果接触角较高，油漆可能会珠状并且无法均匀扩展，从而导致外观不令人满意，可能需要额外的涂层。除了实际应用，接触角在科学研究中也具有重要意义。在材料科学和纳米技术等领域，理解接触角帮助研究人员设计具有特定润湿性特性的表面。例如，超疏水表面表现出极高的接触角值，可以有效地排斥水。这些表面在自清洁技术中具有潜在应用，其中污垢和污染物可以通过雨水或水轻松冲洗掉。此外，接触角受到多种因素的影响，包括表面粗糙度、化学成分和温度。例如，增加表面的粗糙度可以导致接触角减小，从而增强润湿特性。这种现象通常被称为Cassie-Baxter状态，其中表面纹理中捕获的空气口袋有助于改善润湿行为。此外，接触角在生物系统中也至关重要。例如，水与植物叶子的相互作用方式是其健康和生存的关键因素。许多植物已经进化出与水的接触角较低，使它们能够有效收集和利用雨水。理解这些自然适应可以激发生物仿生学中的创新设计，即人造材料模仿自然表面的特性。总之，接触角是一个基本概念，连接了多个学科，从工程到生物学。它的影响广泛，影响从工业过程到生态相互作用的一切。通过研究和操纵接触角，科学家和工程师可以开发新材料和技术，提高性能和可持续性。随着我们对这一概念理解的加深，我们解锁了跨多个研究领域创新和改进的新可能性。