科学家研发透明木材
文章来源:未知 文章作者:enread 发布时间:2020-10-12 03:59 字体: [ ]  进入论坛
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Scientists have designed 'transparent1 wood' that could replace conventional glass in windows.
 
科学家研发出了可以替代传统窗玻璃的“透明木材”。
 
 
The innovation was developed using wood from the balsa tree, which is native to South and Central America, and claims to be five times more thermally3 efficient than glass.
 
The team treated balsa wood in an oxidizing bath that bleaches4 it of nearly all visibility and then penetrated5 it with a synthetic6 polymer called polyvinyl alcohol (PVA) - creating a product that is virtually transparent.
 
Unlike traditional glass, the transparent wood can withstand much stronger impacts and will bend or splinter when damaged, instead of shattering.
 
The transparent wood was created by teams at the University of Maryland and University of Colorado, which set out to find a greener alternative to conventional glass – a production that creates 25,000 tons in emissions7 each year.
 
Along with contributing to greenhouse gases, glass contributes to a loss of energy.
 
'Residential8 building windows in particular account for 10–25% of the heat loss due to their poor thermal2 management capability,' the team wrote in the study.
 
'Exploring energy efficient window materials is thus highly desirable to address heating costs, energy shortages, and the global impact of climate change associated with increased carbon emissions.'
 
The team notes that the bonding between PVA and cellulose in the wood, creates a tightly packed structure that allows for more thermal protection and makes it more durable9 and lighter10 than glass.
 
'Switching to transparent wood could prove to be cost efficient as well,' researchers shared in a statement.
 
'It is approximately five times more thermally efficient than glass, cutting energy costs.'
 
'It is made from a sustainable, renewable resource with low carbon emissions. It's also compatible with existing industrial processing equipment, making the transition into manufacturing an easy prospect11.'


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1 transparent Smhwx     
adj.明显的,无疑的;透明的
参考例句:
  • The water is so transparent that we can see the fishes swimming.水清澈透明,可以看到鱼儿游来游去。
  • The window glass is transparent.窗玻璃是透明的。
2 thermal 8Guyc     
adj.热的,由热造成的;保暖的
参考例句:
  • They will build another thermal power station.他们要另外建一座热能发电站。
  • Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。
3 thermally 4503c689965bc42ad92334e583f5d8c3     
热地
参考例句:
  • The magnetizing field is then removed while the body is thermally isolated. 在该物体热绝缘时把磁场撤去。
  • They could thermally desorb these ions by heating the foil to red heat. 他们通过加热金属箔至红热以解吸这些离子。
4 bleaches 76025bf362f26c2a6120c5d9adbd6701     
使(颜色)变淡,变白,漂白( bleach的第三人称单数 )
参考例句:
  • Oxidation of soils by bleaches can break down large molecules into smaller segments with polar sites. 关于漂白对污垢的氧化作用,使其大分子裂解为带极性基因的短链段。
  • Clean up spilled medicines, bleaches and gasoline and other flammable liquids. 清除溢出的药品,漂白剂、汽油和其他易燃易爆液体。
5 penetrated 61c8e5905df30b8828694a7dc4c3a3e0     
adj. 击穿的,鞭辟入里的 动词penetrate的过去式和过去分词形式
参考例句:
  • The knife had penetrated his chest. 刀子刺入了他的胸膛。
  • They penetrated into territory where no man had ever gone before. 他们已进入先前没人去过的地区。
6 synthetic zHtzY     
adj.合成的,人工的;综合的;n.人工制品
参考例句:
  • We felt the salesman's synthetic friendliness.我们感觉到那位销售员的虚情假意。
  • It's a synthetic diamond.这是人造钻石。
7 emissions 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 ); 散发物(尤指气体)
参考例句:
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
8 residential kkrzY3     
adj.提供住宿的;居住的;住宅的
参考例句:
  • The mayor inspected the residential section of the city.市长视察了该市的住宅区。
  • The residential blocks were integrated with the rest of the college.住宿区与学院其他部分结合在了一起。
9 durable frox4     
adj.持久的,耐久的
参考例句:
  • This raincoat is made of very durable material.这件雨衣是用非常耐用的料子做的。
  • They frequently require more major durable purchases.他们经常需要购买耐用消费品。
10 lighter 5pPzPR     
n.打火机,点火器;驳船;v.用驳船运送;light的比较级
参考例句:
  • The portrait was touched up so as to make it lighter.这张画经过润色,色调明朗了一些。
  • The lighter works off the car battery.引燃器利用汽车蓄电池打火。
11 prospect P01zn     
n.前景,前途;景色,视野
参考例句:
  • This state of things holds out a cheerful prospect.事态呈现出可喜的前景。
  • The prospect became more evident.前景变得更加明朗了。
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