degree of crosslinking

简明释义

交联度

英英释义

例句

1.A higher degree of crosslinking generally leads to a more rigid structure.

更高的交联度通常会导致结构更加刚性。

2.The mechanical properties of the polymer are significantly influenced by the degree of crosslinking.

聚合物的机械性能受到交联度的显著影响。

3.The degree of crosslinking affects the solubility of the resin in solvents.

交联度影响树脂在溶剂中的溶解性。

4.Increasing the degree of crosslinking can enhance the thermal stability of the material.

增加交联度可以提高材料的热稳定性。

5.In this study, we measured the degree of crosslinking using infrared spectroscopy.

在这项研究中，我们使用红外光谱法测量了交联度。

作文

In the field of materials science, the term degree of crosslinking refers to the extent to which polymer chains are interconnected through chemical bonds. This concept is crucial because it significantly influences the physical and chemical properties of polymers, such as their strength, elasticity, and resistance to solvents. Understanding the degree of crosslinking is essential for engineers and scientists who aim to design materials with specific characteristics tailored to various applications.To illustrate the importance of the degree of crosslinking, consider the production of rubber. Natural rubber, which has a low degree of crosslinking, is highly elastic and can stretch significantly. However, when rubber undergoes vulcanization—a process that increases its degree of crosslinking—it becomes much stronger and more durable. This transformation allows the rubber to maintain its shape and resist wear and tear in applications like tires and seals. Therefore, manipulating the degree of crosslinking during the manufacturing process enables the creation of materials that meet specific performance criteria.Moreover, the degree of crosslinking affects how materials respond to temperature changes. For instance, polymers with a high degree of crosslinking tend to have higher thermal stability, making them suitable for high-temperature applications. Conversely, materials with a low degree of crosslinking may become soft and lose their structural integrity at elevated temperatures. This property is particularly important in industries such as aerospace and automotive, where materials must withstand extreme conditions without failing.In addition to mechanical properties, the degree of crosslinking also plays a significant role in the chemical resistance of polymers. Highly crosslinked materials are generally less permeable to solvents and chemicals, making them ideal for use in environments where exposure to aggressive substances is a concern. For example, coatings and sealants designed for chemical resistance often rely on a high degree of crosslinking to provide long-lasting protection against corrosion and degradation.Furthermore, the degree of crosslinking can influence the biodegradability of materials. Polymers with a high crosslink density are often more resistant to microbial attack, making them less likely to decompose in natural environments. This characteristic poses challenges for waste management and environmental sustainability, as these materials can persist in landfills for extended periods. Researchers are actively exploring ways to balance the degree of crosslinking with biodegradability to develop more eco-friendly materials that do not compromise performance.In conclusion, the degree of crosslinking is a fundamental parameter in the study of polymers that impacts a wide range of material properties. By understanding and controlling this aspect, engineers can create innovative materials that meet the demands of modern applications. Whether it is enhancing the strength of rubber or improving the chemical resistance of coatings, the degree of crosslinking remains a critical factor in materials science. As research progresses, we can expect to see continued advancements in how we manipulate the degree of crosslinking to achieve desired material characteristics while addressing environmental concerns.

在材料科学领域，术语交联度指的是聚合物链通过化学键相互连接的程度。这个概念至关重要，因为它显著影响聚合物的物理和化学性质，如强度、弹性和对溶剂的抵抗力。理解交联度对于工程师和科学家来说是必不可少的，他们旨在设计具有特定特性的材料，以适应各种应用。为了说明交联度的重要性，我们可以考虑橡胶的生产。天然橡胶的交联度较低，具有很高的弹性，可以显著拉伸。然而，当橡胶经过硫化处理——这一过程增加了其交联度——它变得更强大且更耐用。这种转变使得橡胶能够保持形状，并在轮胎和密封件等应用中抵抗磨损。因此，在制造过程中操纵交联度使得能够创建符合特定性能标准的材料。此外，交联度影响材料对温度变化的响应。例如，具有高交联度的聚合物通常具有更高的热稳定性，适合用于高温应用。相反，具有低交联度的材料在高温下可能变软并失去结构完整性。这一特性在航空航天和汽车等行业尤为重要，因为这些行业的材料必须在极端条件下承受而不发生故障。除了机械性能外，交联度在聚合物的化学抗性中也起着重要作用。高度交联的材料通常对溶剂和化学品的渗透性较低，使其在暴露于侵蚀性物质的环境中成为理想选择。例如，设计用于化学抵抗的涂层和密封剂通常依赖于高交联度来提供持久的防腐蚀和降解保护。此外，交联度还会影响材料的生物降解性。具有高交联密度的聚合物通常对微生物攻击更具抵抗力，使其在自然环境中不易分解。这一特性给废物管理和环境可持续性带来了挑战，因为这些材料可能在填埋场中持续很长时间。研究人员正在积极探索如何平衡交联度与生物降解性，以开发更环保的材料，而不影响性能。总之，交联度是聚合物研究中的一个基本参数，影响着广泛的材料属性。通过理解和控制这一方面，工程师可以创造出满足现代应用需求的创新材料。无论是增强橡胶的强度还是改善涂层的化学抗性，交联度始终是材料科学中的一个关键因素。随着研究的进展，我们可以期待在如何操纵交联度以实现所需材料特性方面的持续进步，同时解决环境问题。