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These repel each other
这些会相互排斥
And their repulsion causes the polymer which starts out wound together
它们的排斥会让最开始缠绕在一起的聚合物
to unwind, swell, and stretch
解开缠绕，膨胀拉伸
The crosslinks which connect the polymer chains together
将聚合物链连在一起的交联
prevent them from breaking apart in the water
会阻止它们在水中断开
And the fake snow that's created is the same snow they use in Hollywood movie sets
好莱坞电影中用到的也正是这些人造雪
Now let's watch Dr. Dolhun and Arielle
下面再看Dolhun博士和Arielle
turn this same polymer into something totally different another
将这种聚合物转变为完全不同的东西
OK, so I've got another beaker she's holding
这里她拿着另外一个烧杯
I'm gonna pour some water in it
我将把水倒进去
and observe
看好了
Turn it over, Arielle
把它倒过来 Arielle
You don't have to hold your hand under the whole
杯口不需要用手堵着
That's the same polymer
这是相同的聚合物
Only this time
只不过这次
the polymer is not as crosslinked as the first one
聚合物没有像第一种那样交联在一起
It's more of the straight chain polymer
它更多的是一种直链聚合物
and it can absorb many more times its weight in water
它能吸收比自己重量大很多的水分
You'll recognize this. This is the diaper polymer
这个你们应该知道，尿布中用的就是这种聚合物
You know now, right?
你们现在知道了，对吧
So Dr. Dolhun uses the same polymer
Dolhun博士使用了相同聚合物
with a different amount of crosslinking
唯一不同的是交联数量
The sodium polyacrylate that makes diaper gel has fewer crosslinks
用于制造尿布的聚丙烯酸钠，交联较少
and therefore can absorb more water
因此能够比
than the sodium polyacrylate that turned into snow
造雪用的聚丙烯酸钠吸收更多水
Overall, this polymer can absorb up to 800 times its own weight in distilled water
这种聚合物能够吸收多达800倍自身重量的蒸馏水
and about 30 times its own weight in urine
以及大约30倍自身重量的尿液
It's the main ingredient in baby diapers
它是婴儿尿布的主要成分
used to keep the baby dry
用于帮婴儿保持干爽
Hope you enjoyed the video and I'll see you next time
但愿大家喜欢这个视频，下次再见
