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

答案是分之间的作用力与结构工程的巧妙结。

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

内聚力指把质结在一起的分间作用力强度。

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

帮助壁虎抓住体表面采用分间作用力。

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

但SPN内部的聚更多是由瞬态分间作用力交联的，例如氢键。

The other main type of intermolecular forces are " dipole-dipole forces."

另一种主要类型的分间力是“偶极-偶极力” 。

The only intermolecular force that's holding two methane molecules together would be London dispersion forces.

唯一将两个甲烷分结在一起的分间力是伦敦色散力。

It's very weak, which is why London dispersion forces are the weakest intermolecular forces.

非常弱，这就是为什么伦敦色散力是最弱的分间力。

We're talking about an intermolecular force.

我谈论的是分间作用力。

But it is the strongest intermolecular force.

但是最强的分间作用力。

It's happening because of what we call " intermolecular forces."

的发生是因为我称之为“分间作用力” 。

Here's your hydrogen showing intermolecular force here.

这是你的氢在这里显示分间力。

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

但是，不要误会我的意思，在这里。我并不是说分间作用力不重要。

There are basically 2 main types of intermolecular forces.

基本上有两种主要类型的分间作用力。

So these are the weakest intermolecular forces, and they have to do with the electrons that are always moving around in orbitals.

所以这些是最弱的分间力，与总是在轨道上移动的电有关。

Let's look at another intermolecular force.

让我看看另一种分间作用力。

And an intermolecular force would be the force that are between molecules.

分间力就是分之间的力。

And so let's look at the first intermolecular force.

那么让我看看第一个分间力。

The strength of that surface tension depends on the intermolecular forces that pull molecules of a liquid together.

表面张力的强度取决于将液体分拉到一起的分间作用力。

And it has to do with the intermolecular force of dipole-dipole interactions holding those molecules together.

与将这些分结在一起的偶极-偶极相互作用的分间作用力有关。

And the intermolecular force, in turn, depends on the electronegativity.

而分间力又取决于电负性。