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New "whitest paint" can reflect light
American colorists have created a white paint that can reflect light. The novelty is proposed to be used for exterior decoration, which will affect the cooling of houses from hot countries.
The main pigment was replaced with barium sulfate, which absorbs ultraviolet rays. Colorists also made the pigment particles of different sizes. This effectively diffuses light falling on white surfaces.
During the experiment, two surfaces painted with white paint were used. In the first case, it was a paint with barium sulfate. In the second - the usual enamel. It was noted that when exposed to sunlight, both surfaces were heated. But in the first case, the surface heating was several degrees below the ambient temperature.
Typically, white paint reflects about 80-90% of sunlight and absorbs ultraviolet light. But the breakthrough of American scientists is trampling on long-standing experiments with white enamel and its properties.
If you cover a roof with an area of about 100 sq. m of new white paint, this will help create a cooling capacity of 11.7 kW. This figure is higher than the capabilities of the average air conditioner used today.
According to scientists, the created beauty also reflects infrared waves that are not absorbed by the atmosphere. This has a beneficial effect on the environment. The paint can "make" a feasible contribution to the fight against global climate change.
Scientists are preparing to patent a newly developed paint. Therefore, it will soon be on sale. Perhaps in a year or two.
Recently OXO wrote about a project of architects from Taiwan.
The main pigment was replaced with barium sulfate, which absorbs ultraviolet rays. Colorists also made the pigment particles of different sizes. This effectively diffuses light falling on white surfaces.
During the experiment, two surfaces painted with white paint were used. In the first case, it was a paint with barium sulfate. In the second - the usual enamel. It was noted that when exposed to sunlight, both surfaces were heated. But in the first case, the surface heating was several degrees below the ambient temperature.
Typically, white paint reflects about 80-90% of sunlight and absorbs ultraviolet light. But the breakthrough of American scientists is trampling on long-standing experiments with white enamel and its properties.
If you cover a roof with an area of about 100 sq. m of new white paint, this will help create a cooling capacity of 11.7 kW. This figure is higher than the capabilities of the average air conditioner used today.
According to scientists, the created beauty also reflects infrared waves that are not absorbed by the atmosphere. This has a beneficial effect on the environment. The paint can "make" a feasible contribution to the fight against global climate change.
Scientists are preparing to patent a newly developed paint. Therefore, it will soon be on sale. Perhaps in a year or two.
Recently OXO wrote about a project of architects from Taiwan.