Near-infrared reflective film and near-infrared reflector provided with near-infrared reflective film
一种近红外、反射膜的技术,应用在合成树脂层状产品、光学、仪器等方向,能够解决柔软性不足、生产效率变差、断裂等问题,达到柔软性优异、制造成本性能优异、可见光透射率高的效果
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Embodiment 1
[0107] "Fabrication of near-infrared reflective film"
[0108] [Preparation of sample 1]
[0109] (Formation of High Refractive Index Layer 1)
[0110] Disperse 100 parts of zirconia sol (Nanoyouth ZR30-AR manufactured by Nissan Chemical) as a metal oxide in a solution obtained by dissolving 5 parts of guar gum and 5 parts of polyvinyl alcohol (PVA203 manufactured by Kuraray) in 100 parts of water , to prepare high refractive index layer coating solution 1.
[0111] Next, using the high-refractive-index layer coating solution 1, the high-refractive-index layer 1 was coated on a polyethylene terephthalate film with a thickness of 50 μm using a wire bar under the condition that the dry film thickness was 135 nm. Drying is performed to form the high refractive index layer 1 .
[0112] (Formation of Low Refractive Index Layer 1)
[0113] 100 parts of colloidal silica (Snowtex OS manufactured by Nissan Chemical) as a metal oxide is dispersed in a solution of 12 parts of polyvinyl...
Embodiment 2
[0201] [Production of near-infrared reflector 1]
[0202] The near-infrared reflector 1 was produced using the near-infrared reflective film of sample 8 produced in Example 1. The near-infrared reflective film of sample 8 was bonded to a transparent acrylic resin plate with a thickness of 5 mm and 20 cm×20 cm with an acrylic adhesive to produce a near-infrared reflector 1 .
[0203] [Production of near-infrared reflector 2]
[0204] The near-infrared reflector 2 was produced using the near-infrared reflective film of sample 8 described in Example 1. Two sheets of plate glass with a thickness of 2 mm and 20 cm x 20 cm were prepared, and a laminate in which polyvinyl butyral with a thickness of 0.5 mm was arranged on both sides of the near-infrared reflective film of Sample 8 was sandwiched between the two sheets of glass and Pressurization and heat treatment were performed to manufacture the near-infrared reflector 2 as laminated glass.
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