科学家们创造塑料面料使人们感到凉爽

 

 

Scientists create plastic fabric that keeps people cool

Scientists have successfully invented the new nanoporous polyethylene (nanoPE) fabric that can keep people cool during summers. The fabric made of the material used in plastic wraps can block sun’s rays and allow sweat to evaporate through it. It is a more efficient option than fabrics like cotton, and effective for personal thermal management.

The nanoPE fabric is invented by a team of scientists led by Stanford researcher Yi Cui. In their paper published in Science journal, the scientists said that they processed the material to develop a textile that promotes effective cooling while having sufficient air permeability, water wicking rate and mechanical strength for wearability.

Polyethylene’s opaque form that is capable of venting infrared radiations was treated to make it permeable for facilitating sweat evaporation. The scientists then sandwiched cotton mesh between two layers of PDA-nanoPE to perform several tests for common textile properties. They found that the nanoPE sample has a water vapour transmission rate that is higher than cotton, making it easy for body sweat to evaporate through it.

A device imitating human skin was developed by them to stimulate skin temperature. It was found that when the device was covered with nanoPE cloth it raised its temperature by 0.8°C, while cotton stimulated it by 3.5°C.

This new fabric can help reduce energy demands in the future by keeping people cool, thus decreasing their dependence on air conditioners.

译文如下：

科学家们创造塑料面料使人们感到凉爽

科学家们已经成功地发明了新的纳米多孔聚乙烯(nanoPE)面料,它可以使人在夏天降温。面料使用的塑料包装材料可以阻止阳光,让汗水蒸发。相比棉等面料，这是一个更有效的选择,为个人的温度管理是很有效的。

nanoPE面料是由斯坦福大学研究员崔屹领导的一组科学家发明的。在他们发表在科学杂志上的论文中,科学家们表示,他们加工材料来开发一种纺织品,促进有效的冷却,同时拥有足够的透气性,吸水性和机械强度的耐磨性。

聚乙烯不透明的形式能够排放红外辐射,使其渗透促进汗液蒸发。科学家们在PDA-nanoPE的两层之间夹了棉网来执行常见纺织属性多个测试。他们发现nanoPE样本的水蒸气传递速率高于棉花的,使身体更容易出汗蒸发。

设备模仿人体皮肤是由他们来刺激皮肤温度。发现当设备覆盖nanoPE面料，它将温度上调0.8°C,而棉花则刺激了3.5°C。

这个新面料在未来可以帮助减少能源需求,让人们感觉凉爽,因此减少对空调的依赖。