Dehydrated pulp was impregnated with acrylate resin because the refraction index of acrylate resin is 1.52-1.60, which is close to the refraction index of cellulose (1.57). Materials other than acrylate resin can be used as long as their refraction indexes are close to that of cellulose, Yano said.
In general, the refraction indexes of resins change depending on temperature. But the light transmission of the new paper does not change much even at a temperature of 90°C because the pulp prevents the thermal expansion of the resin, Yano said.In November 2011, Yano announced that he developed a technology to make a transparent sheet by using a material made by making a crab shell transparent.
At Monday's city council meeting, council members authorized the mayor to sign a contract with local contractor, Paulson Electric Inc to complete LED lighting upgrade project in Missoula's City Hall. The project is being paid for by a grant from the Department of Energy given to the city as part of the Clean Air Act.
It means the company will now install almost $150,000 in new LED lighting and lighting controls in the basements, stairwells, and hallways of City Hall.
没有评论:
发表评论