Preparation of Super Weather-resistant 3D Bronze Wood Grain Products

Abstract:
this paper introduces the preparation of an ultra-weather-resistant 3D copper wood grain product.
1 foreword
This article introduces an ultra-weather-resistant powder coating combination of 3D bronze wood grain, can replace the traditional brushed bronze crafts bronze antique effect, increase decorative performance, while enhancing water resistance, scratch resistance, UV protection and so on Performance, products with realistic bronze effect, at the same time can be based on the desired gloss, color free design combination, good visual three-dimensional feeling, beautiful and durable, widely used in villa doors, stair handrails and fences and other high-end places, the use of products in the market has been highly recognized by the market.
2 Experimental part
2.1 Main raw materials
thermocorotic end terpene polyester resin (Allnex, Synthomer, Kinte), acrylic resin (medium), isocyanuric acid triglycerides (TGIC), a general-purpose additive for powder coatings (leveling agent, anti-phosphate, antioxidants, pure teflon wax), pigments (Bayer, Olyroon, Clariant), metal pigments (Eckart) and other
China
).
2.2 Experimental Instrument
Mixing Equipment (GHJ-500): Shandong St. Star; Twin Screw Extruder (SLJ-30A): Yantai Donghui; Binding Machine; Electrostational Spraying Equipment (PG-I-B2): Golden Horse Coating High temperature oven: Huabin equipment; 3D texture molding equipment; Cone Bending Tester (QTZ): BYK; Gloss meter (4442): BYK; Impact Performance Meter (5512): BYK; Xenon Aging Instrument (QUV/spary): Q-LAB, etc.
2.3 Ultra-weather-resistant 3D wood-print powder coating preparation and formulation design
2.3.1 According to the table below,
is called to take resins, curing agents, various additives and pigments for premixing, melt extrusion, cooling crushing, crushing, binding process, solidified base powder and bronze flour samples.
2.3.2 3D weather-resistant wood grain process:
(1) coating base powder: take 2 pieces of wall thickness 2mm aluminum plate, first with a spray gun coating Al/A2 base powder, placed in the oven initially cured into film;
(2) coated with copper flour: apply the A1/A2 material of the base powder to step (1) and then apply the flour with a spray gun.
(3) particle molding: the material A1/A2 from step (2) is molded by the particle equipment texture.
(4) baking curing: the product after the step (3) is molded in the oven to bake, so that the copper flour solidified into a film.
temperature of the oil is 200 degrees C x 15min. Cooling to obtain bronze-effect wood grain products.
3 Results and Discussion
3.1 Acrylic base powder reference formula: (recipe based on 1kg)
3.2 two-component base powder reference formula: (recipe based on 1kg)
3.3 Ultra weather-resistant flour reference formula: (formula based on 1kg)

3.4 Finished effect map
3.5 paint film performance test
on the comprehensive experimental data, the use of acrylic formula and two-component formula prepared by the base powder and flour compatible and mechanical properties are excellent, the coating indicates that the luster according to the substrate and bronze flour different systems for reasonable design and matching.
4 Conclusion
Ultra-weather-resistant 3D copper wood coating, can produce a perfect art product comparable to the effect of bronze, compared with the traditional paint brush bronze effect: zero organic solvent volatilization, prevent air pollution; The development of ultra-weather-resistant 3D bronze wood coating provides people's life with high-quality healthy, environmentally friendly home life support, can perfectly replace the traditional paint brushing bronze process effect, can better bronze wood 3D visual effects in the living environment for a long time to be presented.
Wen/Wang Wenjun, Zheng Zhengwei, Li Huatao, Liu Wu
Guangdong Smart Environmental Technology Co.,