surface active agent

简明释义

表面活性剂

英英释义

例句

1.Researchers are studying new surface active agents for more effective drug delivery systems.

研究人员正在研究新的表面活性剂以实现更有效的药物递送系统。

2.The cleaning product's effectiveness is due to its surface active agent that reduces surface tension.

该清洁产品的有效性归功于其降低表面张力的表面活性剂。

3.An emulsifier is a type of surface active agent that helps mix oil and water.

乳化剂是一种类型的表面活性剂，可以帮助混合油和水。

4.In cosmetics, a surface active agent is often used to improve the texture of creams.

在化妆品中，表面活性剂通常用于改善乳霜的质地。

5.The detergent contains a surface active agent that helps to break down grease.

这种洗涤剂含有一种表面活性剂，可以帮助分解油脂。

作文

In the realm of chemistry and industrial applications, the term surface active agent refers to substances that significantly modify the surface properties of liquids. These agents, commonly known as surfactants, play an essential role in various processes, including cleaning, emulsifying, and foaming. The ability of a surface active agent to reduce surface tension is crucial for its effectiveness in these applications. For instance, when added to water, a surface active agent can lower the surface tension, allowing the liquid to spread more easily over surfaces, which enhances cleaning efficiency.Surfactants can be classified into four main categories: anionic, cationic, nonionic, and zwitterionic. Each type has distinct properties and applications. Anionic surfactants, for example, carry a negative charge and are commonly found in laundry detergents and shampoos due to their excellent cleaning capabilities. On the other hand, cationic surfactants possess a positive charge and are often used in fabric softeners and hair conditioners because they can neutralize static electricity and provide a smooth feel.Nonionic surfactants, which have no charge, are particularly useful in applications where foaming is undesirable, such as in certain industrial processes. Zwitterionic surfactants contain both positive and negative charges and are known for their mildness, making them suitable for personal care products.The versatility of surface active agents is evident in their widespread use across different industries. In the food industry, they are utilized as emulsifiers to stabilize mixtures of oil and water, ensuring that products like mayonnaise and salad dressings maintain a consistent texture. In pharmaceuticals, surface active agents help improve the solubility of drugs, facilitating better absorption in the body.Moreover, in the field of environmental science, surface active agents are employed in bioremediation efforts to enhance the breakdown of pollutants. By altering the surface properties of contaminants, these agents can increase the bioavailability of hazardous substances, allowing microorganisms to degrade them more effectively.Despite their numerous benefits, the use of surface active agents raises concerns regarding their environmental impact. Some surfactants can be toxic to aquatic life and may persist in the environment, leading to potential ecological harm. As a result, there is a growing emphasis on developing biodegradable and environmentally friendly surface active agents that minimize adverse effects while maintaining performance.In conclusion, surface active agents are vital components in many everyday products and industrial processes. Their unique ability to alter surface properties makes them indispensable in cleaning, emulsifying, and stabilizing various formulations. However, it is crucial to balance their benefits with environmental considerations, prompting ongoing research into safer alternatives. Understanding the role and function of surface active agents is essential for anyone involved in chemistry, engineering, or environmental sciences, as they continue to shape the way we interact with materials and products in our daily lives.

在化学和工业应用领域，短语表面活性剂指的是显著改变液体表面特性的物质。这些物质通常被称为表面活性剂，在清洁、乳化和发泡等各种过程中发挥着重要作用。表面活性剂降低表面张力的能力对于其在这些应用中的有效性至关重要。例如，当添加到水中时，表面活性剂可以降低表面张力，使液体更容易在表面上扩散，从而增强清洁效率。表面活性剂可以分为四大类：阴离子、阳离子、非离子和两性离子。每种类型都有不同的特性和应用。例如，阴离子表面活性剂带有负电荷，常见于洗衣粉和洗发水中，因为它们具有优异的清洁能力。另一方面，阳离子表面活性剂则带有正电荷，通常用于织物柔顺剂和护发素中，因为它们能够中和静电并提供顺滑的手感。非离子表面活性剂没有电荷，特别适用于泡沫不希望出现的应用，如某些工业过程。两性离子表面活性剂同时含有正负电荷，以其温和性而闻名，适合用于个人护理产品。表面活性剂的多功能性在其在各个行业的广泛应用中得到了体现。在食品工业中，它们被用作乳化剂，以稳定油和水的混合物，确保如美乃滋和沙拉酱等产品保持一致的质地。在制药领域，表面活性剂帮助提高药物的溶解度，促进在体内的更好吸收。此外，在环境科学领域，表面活性剂被用于生物修复工作，以增强污染物的降解。通过改变污染物的表面特性，这些剂量可以提高有害物质的生物可利用性，使微生物能够更有效地降解它们。尽管有诸多好处，表面活性剂的使用也引发了对其环境影响的担忧。一些表面活性剂对水生生物可能具有毒性，并且可能在环境中持续存在，导致潜在的生态危害。因此，越来越强调开发可生物降解和环保的表面活性剂，以在保持性能的同时最小化不良影响。总之，表面活性剂是许多日常产品和工业过程中的重要组成部分。它们独特的改变表面特性的能力使它们在清洁、乳化和稳定各种配方中不可或缺。然而，平衡其益处与环境考虑是至关重要的，这促使对更安全替代品的持续研究。理解表面活性剂的角色和功能对任何参与化学、工程或环境科学的人来说都是必不可少的，因为它们继续塑造我们与日常生活中材料和产品的互动方式。