Thermoplastic PVDF fluorocarbon powder coated aluminum veneer

A technology of powder coating and aluminum veneer, which is applied in the field of building decoration materials, can solve the problems of high environmental protection pressure, lack of anti-ultraviolet ability of fluorocarbon paint, color difference of building appearance, etc., and achieve the effect of performance improvement

Inactive Publication Date: 2020-11-13
方大新材料(江西)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this patented technology, it suggests modifying polyvinylidine difluoro-P (PDVF) into special chemicals called polytetrafluorcryluidimethanesulfonate or abbreviated PMFS), which can improve its durability against abrasion damage from rainwater during use at extreme temperatures such as those found near sea water structures where steel reinforcement bars are used. These modifications enhance their ability to resist erosion caused by salt moisture while also being able to maintain good appearance when painted onto building surfaces under severe conditions like high temperature outdoor environmental exposures over long periods without losing any color quality.

Problems solved by technology

This patented describes an improvement over existing methods involving applying fluoroacrylic acid (FCA) or vinylidazole(VPZ)-containing polymeric material onto metal surfaces during the preparation of adhesive films containing various types of plasticizers like bisphenol A dimethoxytoluene monomers called BPA). These improvements improve durability without compromising their effectiveness at prevention against ultra violet light exposures while also reducing emissions from organisms responsible for causing yellow discolorations when painted indoor walls are covered with these finishes. Additionally, there can be no issue where pigments get mixed into the interior due to poor dispersibility caused by water evaporation after painting. Overall, the proposed solution provides better quality green design alternatives for buildings.

Method used

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  • Thermoplastic PVDF fluorocarbon powder coated aluminum veneer

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0015] Such as figure 1 As shown, a PVDF fluorocarbon-coated aluminum veneer for architectural decoration includes an aluminum alloy base plate 1, a passivation film 2 and a PVDF fluorocarbon powder layer 3, and the thickness of the aluminum alloy base layer 1 is 2.5 mm or 3.0 mm. It is 3003 series aluminum alloy, through the sheet metal processing technology to make it reach the required shape, and the surface to be sprayed is polished with 80 mesh sandpaper to deal with the scratches, pits, indentations and other defects on the surface of the plate to increase the roughness of the surface to be sprayed. Increase the adhesion of the paint film; the passivation film 2 is a dense silver-white protective film with a thickness of about 2-3 μm formed by spraying the aluminum alloy base plate with a passivation agent in the passivation process of the pre-t

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Abstract

The invention discloses a thermoplastic PVDF fluorocarbon powder coated aluminum veneer. The thermoplastic PVDF fluorocarbon powder coated aluminum veneer comprises an aluminum alloy base layer plate,a passive film and a PVDF fluorocarbon powder layer. The production process of the aluminum veneer comprises three parts, namely a sheet metal process, a pretreatment process and a spraying process,according to the aluminum veneer surface coating technology, a one-time-coating two-time-baking process is adopted, that is, after pretreatment is completed and the passive film is formed, baking is conducted for 8-10 minutes at the temperature of 60-100 DEG C to remove tap water and pure water remaining on the plate surface in the pretreatment process to make the aluminum plate reach a state suitable for spraying, and then PVDF fluorocarbon powder is sprayed, and then baking is conducted for 15 minutes at the temperature of 235 DEG C for curing to form the veneer. The new building decorationmaterial product in which the PVDF fluorocarbon powder coating is adopted as the surface coating layer of the aluminum veneer and which is developed through the one-time-coating two-time-baking production process has good wear resistance, corrosion resistance, weather resistance and other new properties and is suitable for being applied to coastal or offshore building exterior wall decoration withthe severe environment, and high corrosion and salt fog properties.

Description

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Claims

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Application Information

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Owner 方大新材料(江西)有限公司
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