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Sunshine polyvinyl butyral nanocomposite for blocking the sun's radiation and method for preparing the same

A technology of polyvinyl butyral and nanocomposite materials, applied in the field of blocking solar heat rays, achieving the effects of high near-infrared ray blocking rate and visible light transmittance, low production cost, and good processing performance

Inactive Publication Date: 2011-03-09
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no documented how to combine ZAO and PVB to obtain a composite transparent material that is widely used to block solar heat rays.

Method used

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  • Sunshine polyvinyl butyral nanocomposite for blocking the sun's radiation and method for preparing the same
  • Sunshine polyvinyl butyral nanocomposite for blocking the sun's radiation and method for preparing the same
  • Sunshine polyvinyl butyral nanocomposite for blocking the sun's radiation and method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of aluminum-doped nano-zinc oxide: Weigh 2.2 grams (0.01 mole) of zinc acetate dihydrate and dissolve it in ethylene glycol methyl ether to form solution A of 0.01 molar concentration; add 0.61 grams (0.01 mole) of Ethanolamine, stirred evenly to form a colorless and transparent solution B; the solution B was placed in a 250 ml three-necked flask equipped with a mechanical stirring device, and stirred and reacted in a water bath at 75°C for 4 hours. The reaction solution was cooled to room temperature, and an ethanol solution containing 0.2 g (0.0005 mol) of aluminum nitrate was added, stirred evenly, and allowed to stand for 24 hours to form a transparent sol. The sol was dried in a vacuum oven at 80°C to form a viscous transparent gel. The gel was put into a muffle furnace and pre-fired at 350°C for 1 hour. After grinding, the powder was calcined at 650°C for 2 hours to prepare ZnO powder (AZO) with a molar ratio of 5% Al doped.

[0025] (2) Modificat...

Embodiment 2

[0029] Prepare the PVB / AZO nanocomposite membrane material according to the same method as Example 1, the difference is that the last mixed solution in Example 1 is 10MPa with a pressure plate vulcanizer, the preheating time is 5 minutes, and the holding time For 3 minutes, the size of the mold frame is 10cm×10cm, and the thickness of the mold frame is 1mm to press, and the PVB / AZO composite diaphragm with a size of 10cm×10cm and a thickness of 1mm is obtained.

Embodiment 3

[0031] Prepare the PVB / AZO nanocomposite membrane material according to the same method as Example 1, the difference is that the final mixed solution in Example 1 is cast after mixing and extruding with a Haake rheometer, and PVB / AZO is prepared. AZO composite diaphragm.

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PUM

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Abstract

The invention discloses a sunshine polyvinyl butyral nanocomposite for blocking the sun's radiation and method for preparing the same. Modified Al-doped nanometer zinc oxide, polyvinyl butyral, plasticizer and anti-oxidant are dispersed in the dispersant and poured into the mold to be compounded into the nanocomposite, wherein the weight ratio of Al-doped nanometer zinc oxide to polyvinyl butyral is (0.01-10):50. The nanocomposite compounded of AZO and PVB effectively has the advantages of good processing property, high ultraviolet and near-infrared rejection and visible light transmission, low cost, friendly environment and non toxicity, thus is widely applied in the fields of buildings, automobiles and aviation.

Description

technical field [0001] The invention belongs to the technology of blocking sunlight and heat rays, and in particular relates to a polyvinyl butyral nanocomposite material and a preparation method thereof. Background technique [0002] Polymer-based nanocomposites have been widely used due to their many unique properties. Polyvinyl butyral (PVB) has strong adhesion to inorganic glass, and has the characteristics of heat resistance, cold resistance, moisture resistance, transparency, and high mechanical strength. It is the best adhesive material for manufacturing safety laminated glass in the world today. . Aluminum-doped zinc oxide (ZAO) is a new type of n-type semiconductor with a band gap of 3.3eV, high transmittance in the visible light range, intrinsic absorption of ultraviolet rays, and high reflection of near-infrared rays. It is widely used in solar cells. board, gas sensor, flat panel display, etc. To make the ZAO semiconductor material have good light transmission...

Claims

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Application Information

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IPC IPC(8): C08L29/14C08K13/06C08K9/06C08K9/04C08K3/22C08K3/08
Inventor 张刚申蒋涛李伟博王国成肖汉文董兵海周威任小明
Owner HUBEI UNIV
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