D********g
发帖数: 533 | 1 http://science.solidot.org/article.pl?sid=07/10/06/0918215
"密歇根大学的工程师创造了一种新型可层层叠加的合成塑料，这种塑料与和钢铁一样
坚硬，但很轻而且是透明的。它的原理与珍珠母相同，强度也相似。它由纳米粘土(
clay nanosheets)和水溶性聚乙烯醇（PVA）制造而成，PVA是涂料和胶水的主要原料。
300层的纳米粘土和聚乙烯醇聚合物与常见的塑料包一样厚。这种塑料可用于设计轻便
坚硬的装甲，研究人员还认为这一材料可用于生物医学传感器和无人驾驶飞船。
原帖
http://www.ns.umich.edu/htdocs/releases/story.php?id=6084 | w********h
发帖数: 12367 | 2 这个翻译有问题,材料"strong"不是"硬",而是"强".
"硬"的话那是stiff.
U-M research: New plastic is strong as steel, transparent
ANN ARBOR, Mich.—By mimicking a brick-and-mortar molecular structure found
in seashells, University of Michigan researchers created a composite plastic
that's as strong as steel but lighter and transparent.
It's made of layers of clay nanosheets and a water-soluble polymer that
shares chemistry with white glue.
Engineering professor Nicholas Kotov almost dubbed it "plastic steel," but
the new m
【在 D********g 的大作中提到】
: http://science.solidot.org/article.pl?sid=07/10/06/0918215
: "密歇根大学的工程师创造了一种新型可层层叠加的合成塑料，这种塑料与和钢铁一样
: 坚硬，但很轻而且是透明的。它的原理与珍珠母相同，强度也相似。它由纳米粘土(
: clay nanosheets)和水溶性聚乙烯醇（PVA）制造而成，PVA是涂料和胶水的主要原料。
: 300层的纳米粘土和聚乙烯醇聚合物与常见的塑料包一样厚。这种塑料可用于设计轻便
: 坚硬的装甲，研究人员还认为这一材料可用于生物医学传感器和无人驾驶飞船。
: 原帖
: http://www.ns.umich.edu/htdocs/releases/story.php?id=6084
| a*i
发帖数: 1652 | 3 "硬"的话那是hardness (shore D)?
PVA is not very stable...the material may lose integrity with time.
found
plastic
Nevertheless
【在 w********h 的大作中提到】
: 这个翻译有问题,材料"strong"不是"硬",而是"强".
: "硬"的话那是stiff.
: U-M research: New plastic is strong as steel, transparent
: ANN ARBOR, Mich.—By mimicking a brick-and-mortar molecular structure found
: in seashells, University of Michigan researchers created a composite plastic
: that's as strong as steel but lighter and transparent.
: It's made of layers of clay nanosheets and a water-soluble polymer that
: shares chemistry with white glue.
: Engineering professor Nicholas Kotov almost dubbed it "plastic steel," but
: the new m
| w********h
发帖数: 12367 | 4 hardness是有特指的,必须有比较严格的测试条件下标定"硬度",
stiffness比较广泛一些,一般的indentation得到的surface modulus就可以表征.
【在 a*i 的大作中提到】
: "硬"的话那是hardness (shore D)?
: PVA is not very stable...the material may lose integrity with time.
:
: found
: plastic
: Nevertheless
|
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