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美国发明家用云胶制造成的窗玻璃能随着温度的变化而自动从透明变为半透明到不透明。云胶是一种含油成分聚合物和水的混合物,为胶状半流体。其透明度随温度的变化反应相当灵敏。在温度低时,云胶内的油质成分把水分子冷冻成一层外壳,包围在像面条似的聚合物四周,就像一根电线外面包着绝缘外套一样。这时的云胶是透明的,能通过90%的阳光。当温度升高时,水冻状态的水分
The window glass made by U.S. invented household cloud glue can automatically change from transparent to translucent to opaque as the temperature changes. Gel gum is a mixture of an oil-containing component polymer and water and is a gel-like semi-fluid. Its transparency is very sensitive to changes in temperature. When the temperature is low, the oil components in the cloud gel freeze the water molecules into a shell and surround the noodle like polymer, just like a wire covered with an insulating jacket. The cloud glue at this time is transparent and can pass 90% of sunlight. When the temperature rises, the moisture in the frozen state