Antibiotic powdery paint for aluminium profile and preparation method thereof
An antibacterial powder and aluminum profile technology, applied in powder coatings, polyester coatings, antifouling/underwater coatings, etc., can solve the problem of affecting the decorative effect of powder coatings, poor compatibility, and short duration of antibacterial and antifungal effects. and other problems, to achieve the effect of low production cost, simple formula and good antibacterial effect
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Embodiment 1
[0026] Premix 610g carboxyl-terminated saturated polyester resin, 46g triglycidyl isocyanurate (TGIC), 250g titanium dioxide, 70g precipitated barium sulfate, 1g antibacterial and antifungal agent, 10g brightener, 10g leveling agent and 3g benzoin; Then, the pre-mixed raw materials are melt-extruded. Melt-extrusion refers to the use of a twin-screw extruder to melt, knead, and evenly disperse the pre-mixed raw materials. The temperature in zone I of the extruder is 115-125°C , the temperature in the II zone of the extruder is 105-115°C; then, the extruded material is crushed and finely crushed after being cooled by a tableting roller. ; Finally, sieve the fine powder coating with a standard sieve.
Embodiment 2
[0028] 570g carboxyl-terminated saturated polyester resin, 43g triglycidyl isocyanurate (TGIC), 250g titanium dioxide, 110g precipitated barium sulfate, 1g antibacterial and antifungal agent, 11g brightener, 12g leveling agent and 3g benzoin are premixed; Then, the pre-mixed raw materials are melt-extruded. Melt-extrusion refers to the use of a twin-screw extruder to melt, knead, and evenly disperse the pre-mixed raw materials. The temperature in zone I of the extruder is 115-125°C , the temperature in the II zone of the extruder is 105-115°C; then, the extruded material is crushed and finely crushed after being cooled by a tableting roller. ; Finally, sieve the fine powder coating with a standard sieve.
Embodiment 3
[0030] 530g carboxyl-terminated saturated polyester resin, 40g triglycidyl isocyanurate (TGIC), 250g titanium dioxide, 146g precipitated barium sulfate, 6g antibacterial and antifungal agent, 12g brightener, 12g leveling agent and 4g benzoin are premixed; Then, the pre-mixed raw materials are melt-extruded. Melt-extrusion refers to the use of a twin-screw extruder to melt, knead, and evenly disperse the pre-mixed raw materials. The temperature in zone I of the extruder is 115-125°C , the temperature in the II zone of the extruder is 105-115°C; then, the extruded material is crushed and finely crushed after being cooled by a tableting roller. ; Finally, sieve the fine powder coating with a standard sieve.
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