The answer lies in a clever combination of intermolecular forces and stuctural engineering.

答案是之间的作力与结构工程的巧妙结合。

Cohesion means the strength of intermolecular forces that hold the material together.

内聚力指把物质结合在一起的间作力强度。

They are used to help it grip to surfaces using intermolecular forces.

它们帮助壁虎抓住物体表面采间作力。

But polymers within the SPN are crosslinked by more transient intermolecular forces, such as hydrogen bonding.

但SPN内部的聚合物则更多是由瞬态间作力交联的，例如氢键。

Like a couple that ignores everyone except each other, carbon and fluorine interact so strongly, that the normal, intermolecular forces that help substances stick to each other don't stand a chance.

就像一对视他人的情侣，碳原和氟原强烈地相互作，造成普通帮助物质黏在一起的作于间的力根本不起作。

Water, however, is much less viscous as it is held together by weaker intermolecular forces, therefore it is easier to deform, making it so easy to pour it into a glass.

然而水的粘稠性却低得多，通过较弱的间作力结合在一起，因此水更容易变形，使其很容易倒入玻璃杯中。

There are basically 2 main types of intermolecular forces.

基本上有种主要的间作力。

And it has to do with more than just intermolecular forces.

这不仅与间力有关。

And then there are going to be properties based on these intermolecular forces, like surface tension, viscosity, and volume and mixing that we talk about with liquids that we don't have to talk about when we're talking about solids.

然后会有基于这些间力的特性, 比如表面张力、粘度、体积和混合, 我们谈论液体时, 不必谈论固体。

In this video, we're going to see how we figure out whether molecules are polar or nonpolar and also how to apply that polarity to what we call intermolecular forces.

在这段视频中，我们将看到如何判断是极性的还是非极性的，以及如何将这种极性应到我们所说的间作力上。

As the steam slows down, eventually, intermolecular bonds begin to form between gaseous water molecules, or in simpler terms, the steam turns from a gas into a liquid.

当蒸汽减速时， 最终，气态水之间开始形成间键，简单来说， 就是蒸汽从气体变成了液体。

And that's all based on intermolecular forces as well.

而这一切也都是基于间作力。

And the particles in a gas experience intermolecular forces, too, it's just that the forces are far weaker than in the condensed states, so they allow them to spread much further apart and interact very little.

气体中的粒也会经历间作力，只不过这种力量比在凝聚态下要弱得多，因此它们可以相隔很远并相互作很少。

And so the mnemonics that students use is FON. So if you remember FON as the electronegative atoms that can participate in hydrogen bonding, you should be able to remember this intermolecular force.

因此，学生们使的记忆法是FON。所以如果你记住FON代表可以参与氢键的电负性原，你就应该能记住这种间作力。

And so the force between this one molecule of hydrochloric acid and this one is going to be intermolecular.

因此, 这个盐酸和这个之间的力将是间的。

We've talked about intermolecular forces a ton and very much present in the next episode coming out.

我们已经多次讨论了间力，并且这一主题将在即将播出的下一集中继续深入探讨。

But, do not get me wrong, here. I'm not saying that intermolecular forces aren't important.

但是，别误会我。我并不是说间作力不重要。

If there's a molecule, there's intermolecular forces.

只要有存在，就存在间力。

And so this is just a quick summary of some of the intermolecular forces to show you the application of electronegativity and how important it is.

这只是一个快速总结，介绍一些间作力，展示电负性的应及其重要性。

In a physical process however what we're doing is simply pulling on those intermolecular forces that are holding the molecules together.

然而，在物理过程中，我们所做的只是拉动将结合在一起的间力。