Water-based transparent heat isolating coating, its preparation method and using method
A heat-insulating coating, water-based technology, applied in polyester coatings, radiation-absorbing coatings, coatings, etc., can solve the problem of limited infrared light shielding ability, low content of nanomaterials, difficulty in dispersing and modifying nanomaterials due to nano-agglomeration, etc. problem, achieve good visible light transmission and infrared shielding heat insulation effect, simple preparation process, and good heat insulation effect
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Embodiment 1
[0046] 1. Preparation of water-based nano-copper sulfide slurry, the preparation process includes the following steps:
[0047] a) Add 0.300g of CuCl 2 2H 2 O and 1.500 g of PVP were dissolved in deionized water (60 mL) to form a transparent blue solution under magnetic stirring at room temperature, and then 2.1 mL of (NH 4 ) 2 The S solution was quickly injected into the above-mentioned transparent blue solution, and after magnetic stirring for 30 min, it was transferred to two 45 mL hydrothermal autoclaves, sealed, and hydrothermally treated at 180 °C for 12 h; then the system was naturally cooled to room temperature,
[0048] b) After ultrasonically dispersing the PVP modified copper sulfide nanosheet suspension prepared by the hydrothermal method for 10 minutes, inject excess acetone into it, seal it with a plastic wrap and let it stand for 6 hours;
[0049]c) During the standing process, the PVP modified copper sulfide nanosheets have obviously settled. Pour the supern...
Embodiment 2
[0057] 1. Preparation of water-based nano-copper sulfide slurry, the preparation process includes the following steps:
[0058] a) Add 0.600g of CuCl 2 2H 2 O and 3.000 g of PVP were dissolved in deionized water (60 mL) to form a transparent blue solution under magnetic stirring at room temperature, and then 4.2 mL of (NH 4 ) 2 The S solution was quickly injected into the above-mentioned transparent blue solution, and after magnetic stirring for 30 minutes, it was transferred to two 45mL hydrothermal autoclaves, sealed, and hydrothermally treated at 180°C for 12 hours; then the system was naturally cooled to room temperature;
[0059] b) After ultrasonically dispersing the PVP modified copper sulfide nanosheet suspension prepared by the hydrothermal method for 10 minutes, inject excess acetone into it, seal it with a plastic wrap and let it stand for 6 hours;
[0060] c) During the standing process, the PVP modified copper sulfide nanosheets have obviously settled. Pour the...
Embodiment 3
[0068] 1. Preparation of water-based nano-copper sulfide slurry, the preparation process includes the following steps:
[0069] a) Add 0.600g of CuCl 2 2H 2 O and 3.000 g of PVP were dissolved in deionized water (60 mL) to form a transparent blue solution under magnetic stirring at room temperature, and then 4.2 mL of (NH 4 ) 2 The S solution was quickly injected into the above-mentioned transparent blue solution, and after magnetic stirring for 30 min, it was transferred to two 45 mL hydrothermal autoclaves, sealed, and hydrothermally treated at 180 °C for 12 h; then the system was naturally cooled to room temperature,
[0070] b) After ultrasonically dispersing the PVP modified copper sulfide nanosheet suspension prepared by the hydrothermal method for 10 minutes, inject excess acetone into it, seal it with a plastic wrap and let it stand for 6 hours;
[0071] c) During the standing process, the PVP modified copper sulfide nanosheets have obviously settled. Pour the super...
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