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高景气难逆转 维生素行情还在飞

文章出处: 网责任编辑: 人气: 发表时候:2018-10-19 14:51:31 关键字:

凯茵化工讯 不用黏合剂,就能把断成两半的玻璃接合在一起,听起来是不可能完成的任务。日本东京大学研究人员发现,如果制作玻璃的材料是聚醚硫脲,做这件事就不费吹灰之力。

杜邦钛白粉 R-104

日本新闻网站“火箭新闻”16日报道,研究人员原计划开发新的黏合剂,却偶然发现聚醚硫脲这种化合物具有自愈性能。

研究人员说,聚醚硫脲制成的玻璃如果断裂,只要在室温下合拢断裂部分,稍加压力数十秒,玻璃就能自我修复裂缝,而且坚固依旧。东京大学提供的视频显示,一块长20毫米、宽10毫米、厚2毫米的聚醚硫脲半透明玻璃,一裂为二,研究人员分别用镊子夹住两部分,紧密贴合一会儿,两部分玻璃就连在一起,随后还能借助夹子勾起300克重的砝码。

研究结果刊载于好新一期《科学》杂志。

Tokyo University polyether thiourea developed from the glass

Kailin Chem News can join two halves of glass together without adhesives, sounding an impossible task. Researchers at Tokyo University in Japan found that if the material used to make the glass is polythiourea, it would be easy to do it.

Japanese news site "Rockets News" reported on the 16th, the researchers originally planned to develop new adhesives, but occasionally found that polyether thiourea compounds with self-healing properties.

Researchers say that if a glass made of polythiourethiourea breaks down, the glass will self-repair the cracks as long as the broken part is closed at room temperature and a little pressure is applied for a while, and the firmness remains the same. The video provided by the University of Tokyo showed that a piece of polythiourea semitransparent glass, 20 mm long, 10 mm wide and 2 mm thick, was split into two pieces. The researchers tweened the two parts with tweezers and held them in close contact for a while. The two parts The glass is joined together, followed by a 300g weight with a clip.

The findings are published in the latest issue of Science.