surface active agent

简明释义

表面活性剂

英英释义

例句

1.In the production of detergents, a key component is the surface active agent which helps to break down grease and dirt.

在洗涤剂的生产中，一个关键成分是表面活性剂，它有助于分解油脂和污垢。

2.The surface active agent in this shampoo allows it to lather effectively, providing a better cleaning experience.

这款洗发水中的表面活性剂使其能够有效起泡，从而提供更好的清洁体验。

3.A good surface active agent can reduce the surface tension of water, making it easier for the liquid to spread.

一个好的表面活性剂可以降低水的表面张力，使液体更容易扩散。

4.Manufacturers often test the effectiveness of a surface active agent before launching a new cleaning product.

制造商通常会在推出新清洁产品之前测试表面活性剂的有效性。

5.In cosmetics, the surface active agent helps to emulsify oils and water, creating a smooth texture.

在化妆品中，表面活性剂有助于乳化油和水，创造出光滑的质地。

作文

In the realm of chemistry and materials science, the term surface active agent refers to a substance that significantly alters the properties of a surface. These agents are commonly known as surfactants, and they play a crucial role in various applications, including detergents, emulsifiers, and foaming agents. Understanding the function and importance of surface active agents can enhance our knowledge of everyday products and their effectiveness.Surfactants are compounds that lower the surface tension between two substances, such as oil and water. This property allows them to facilitate the mixing of these otherwise immiscible liquids. For instance, when we use soap or detergent, the surface active agents present in these products help to break down grease and dirt, allowing them to be washed away easily. The hydrophilic (water-attracting) and hydrophobic (water-repelling) parts of the surfactant molecule work together to encapsulate dirt particles, making them soluble in water.Moreover, surface active agents are essential in the formulation of many cosmetic products. They help to stabilize emulsions, which are mixtures of oil and water. Creams and lotions often contain these agents to ensure a smooth and consistent texture. Without surfactants, these products would separate, rendering them ineffective. The ability of surface active agents to stabilize emulsions is not only vital for cosmetics but also for food products, pharmaceuticals, and even paints.In industrial applications, surface active agents are utilized in processes such as oil recovery, where they help to extract oil from reservoirs by reducing the interfacial tension between oil and water. This application highlights the importance of surfactants in enhancing resource extraction efficiency. Additionally, in the agricultural sector, surfactants are used in pesticides and herbicides to improve their spreadability and adherence to plant surfaces, ensuring better coverage and effectiveness.Despite their numerous advantages, the use of surface active agents also raises environmental concerns. Many traditional surfactants are derived from petrochemicals and can be harmful to aquatic life when they enter water systems. As a result, there has been a growing trend towards the development of biodegradable and environmentally friendly surfactants. Researchers are exploring natural sources, such as plant oils and sugars, to create sustainable alternatives that maintain the effectiveness of traditional surfactants while minimizing ecological impact.In conclusion, surface active agents are indispensable components in a wide array of products and processes, from household cleaners to industrial applications. Their ability to modify surface properties makes them vital for achieving desired outcomes in various fields. However, it is essential to balance their use with environmental considerations. As we continue to innovate and seek sustainable solutions, the role of surface active agents will undoubtedly evolve, leading to safer and more effective products for consumers and industries alike.

在化学和材料科学领域，短语表面活性剂指的是一种显著改变表面性质的物质。这些剂通常被称为表面活性剂，它们在各种应用中发挥着至关重要的作用，包括清洁剂、乳化剂和起泡剂。理解表面活性剂的功能和重要性可以增强我们对日常产品及其有效性的认识。表面活性剂是降低两种物质之间表面张力的化合物，例如油和水。这一特性使它们能够促进这些本来不相溶的液体的混合。例如，当我们使用肥皂或清洁剂时，这些产品中存在的表面活性剂帮助分解油脂和污垢，使其能够轻松洗去。表面活性剂分子的亲水（吸水）部分和疏水（排水）部分共同作用，包裹污垢颗粒，使其溶解于水中。此外，表面活性剂在许多化妆品的配方中是必不可少的。它们帮助稳定乳液，即油和水的混合物。乳霜和乳液通常含有这些剂，以确保平滑和一致的质地。如果没有表面活性剂，这些产品将会分离，从而使其失效。表面活性剂稳定乳液的能力不仅对化妆品至关重要，也对食品产品、药品甚至涂料至关重要。在工业应用中，表面活性剂用于油气回收等过程，通过减少油和水之间的界面张力来帮助从油藏中提取石油。这一应用突显了表面活性剂在提高资源提取效率方面的重要性。此外，在农业部门，表面活性剂用于杀虫剂和除草剂，以改善其在植物表面的扩散和附着，确保更好的覆盖和有效性。尽管有许多优点，但使用表面活性剂也引发了环境问题。许多传统的表面活性剂是来源于石化产品，并且当它们进入水系统时可能对水生生物造成危害。因此，开发可生物降解和环保的表面活性剂的趋势日益增长。研究人员正在探索天然来源，如植物油和糖，以创造可持续的替代品，这些替代品在保持传统表面活性剂的有效性的同时，尽量减少生态影响。总之，表面活性剂是广泛产品和过程中的不可或缺的组成部分，从家用清洁剂到工业应用。它们修改表面性质的能力使它们在各个领域实现预期结果至关重要。然而，平衡其使用与环境考虑是至关重要的。随着我们继续创新并寻求可持续解决方案，表面活性剂的角色无疑会演变，从而为消费者和各行业提供更安全、更有效的产品。