Metal oxide dispersion and molded article
A technology of oxides and dispersions, applied in the field of formed bodies, can solve the problems of infrared shielding effect and poor stability given to difficult-to-form bodies, and achieve the effect of providing sunshine shielding effect and temperature reduction effect, good processability and high transparency.
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Embodiment
[0111] Hereinafter, the present invention will be specifically described based on examples. However, the present invention is not limited to these Examples.
[0112] The measurement of the average primary particle diameter of a metal oxide is performed by the following method.
[0113]
[0114] The average primary particle size of the metal oxide (A) was observed with a scanning electron microscope, and the primary particle size was directly obtained from the image. Specifically, a very small amount of the metal oxide (A) was placed on a glass plate in a powder state, and observed with a scanning electron microscope. Then, look for a field of view that can observe the metal oxide (A) grain by grain as independently as possible. Next, a straight line oriented in an arbitrary predetermined direction is determined in the field of view, and the longest length that crosses the particles existing on the straight line is defined as the size of the particle. In this way, the size...
Embodiment 2～15、 comparative example 1～6
[0155] A powdery high-concentration metal oxide dispersion (E) was produced in the same manner as in Example 1, except that the composition and compounding ratio (% by weight) of Example 1 were changed as described in Tables 4 to 6. Next, a particulate metal oxide dispersion was prepared in the same manner as in Example 1, except that the composition and the compounding ratio (% by weight) of Example 1 were changed as described in Tables 7 to 9.
[0156] To the obtained granular metal oxide dispersion, the thermoplastic resin (D) was added and mixed so that the concentration of the metal oxide after molding was 0.3% by weight or 1.0% by weight. The thermoplastic resin (D) is the same as the resin used for producing the particulate metal oxide dispersion. Next, the obtained mixture was formed into a film-shaped formed body in the same manner as in Example 1.
Embodiment 16
[0158] [Production of Metal Oxide Dispersion]
[0159] The metal oxide (A-1) was charged into a super mixer (manufactured by Kawada Corporation) so that the metal oxide (A-1) was 50% by weight and the organosilane compound (B-1) was 10% by weight. After stirring these under the conditions of a temperature of 120°C and a time of 10 minutes, it was cooled until the temperature became 20°C. Then, the wax (C-1) was 10 wt % and the thermoplastic resin (D-1) was 30 wt %, and were further put into a super mixer (manufactured by Kawada Corporation), respectively, at a temperature of 20° C. and a time of 5 minutes. under stirring conditions. Next, these were melt-kneaded using an experimental plastic molder (manufactured by Toyo Seiki Co., Ltd.) whose temperature was set to 100°C. The obtained kneaded product was pulverized using a pulverizer (manufactured by Horai) to obtain a powdery high-concentration metal oxide dispersion (E-14).
[0160] Next, the obtained powdery high-concent...
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Abstract
Description
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