Process for preparing automobile heat-isolation glass
A technology of insulating glass and preparation process, applied in coatings, epoxy resin coatings, etc., can solve the problems of low hardness, poor acid and alkali resistance, poor aging resistance, light transmission, and poor heat insulation performance, and achieve smooth surface. , Excellent thermal insulation performance, the effect of maintaining temperature
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Embodiment 1
[0018] (1) Preparation of nano-antimony-doped tin dioxide slurry: Mix nano-antimony-doped tin dioxide with an appropriate amount of acetone, add BYK series unsaturated polycarboxylic acid polymer and polysiloxane copolymer dispersant, and disperse and grind Grinding in the machine at 5000 r / min for 3 hours, set aside;
[0019] (2) Preparation of component A: First, dissolve epoxy resin E-44 in an appropriate amount of acetone, add the nano-antimony-doped tin dioxide slurry prepared in step (1), and stir evenly at a low speed to obtain A Components, wherein, the mass ratio of raw materials for component A is: epoxy resin E-44 100, acetone 15, nano antimony-doped tin dioxide 12, BYK series unsaturated polycarboxylic acid polymer and polysiloxane copolymer Dispersant 0.2, standby;
[0020] (3) Preparation of component B: first dissolve polyamide 650 in acetone, then add a small amount of acrylic resin leveling agent and silicone defoamer to the system, stir evenly at low speed t...
Embodiment 2
[0023] Example 2: The rest are the same as in Example 1, except that in the step (2), the mass ratio of raw materials for component A is: epoxy resin E-44 100, acetone 18, nanometer antimony-doped tin dioxide 14, BYK series Unsaturated polycarboxylic acid polymer and polysiloxane copolymer dispersant 0.3; in the step (3), control the mass ratio of raw materials of component B: polyamide 650 70, acetone 19, acrylic resin leveling agent 0.3 , silicone defoamer 0.4; in the step (4), the aging time is controlled to 4h; in the step (5), the thickness of the coating film is controlled at 79 μm, and it is maintained for 4 days.
Embodiment 3
[0024] Example 3: The rest are the same as in Example 1, except that in the step (2), the mass ratio of raw materials for component A is: Epoxy resin E-44 100, acetone 21, nano antimony-doped tin dioxide 18, BYK series Unsaturated polycarboxylic acid polymer and polysiloxane copolymer dispersant 0.4; in the step (3), control the mass ratio of raw materials of component B: polyamide 650 78, acetone 22, acrylic resin leveling agent 0.4 , silicone defoamer 0.5; in the step (4), the aging time is controlled to 5h; in the step (5), the thickness of the coating film is controlled at 82 μm, and it is maintained for 5 days.
[0025] After the above process steps, the insulating glass sample is taken out to be tested:
[0026] serial number Coating Appearance Acid resistance (5% ) Alkali resistance Transmittance / % Insulation temperature difference / ℃ Example 1 normal 48h no abnormality 48h no abnormality 80 10 Example 2 normal 48h no ab...
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