Overall, a higher content of PVDF and better weather resistance, less adhesive strength. The panel selects ALUSIGN® scientific arrangement in pairs or groups for coating PVDF. The percentage of PVDF in raw paint is low, but the adhesive strength is good for the premium paint to adhere well to the base material. Strictly speaking, creates a coating layer of thermoplastic PVDF, which has excellent endurance performance Mek.

Tab titleProtective FilmMain materials

Today, the decorative layer to the metal substrate mainly includes all kinds of coating, film, surface processing, etc.

1.Coating Types

Tipos: Acryloyl chloride (AC)
SDPE
Silicone – modified polyester (SMPE)
Epoxide
Polyester (PET)
Urethane (PV)
Polyester Amide (PA)
PVDF

Alusign Aluminum Composite Panel Material

Why the PVDF coating has such excellent performance?

The combined structure link short carbon-fluorine hydrogen bond is the most stable and firm among all types of chemical structure currently structure. As criteria for judging the stability and adjustment of the structure, the electronegative index reaches 105 kJ / mol. For normal coating, only 83.2 kilojoules is / mol for the energy of normal combination of carbon and carbon.
There are an inorganic material whose constituent is SiO2. It is created by chemical method and is composed of pure inorganic resin. As the energy of the composition of silicon and oxides is 101 kJ / mol, such attachment can not be destroyed by the ultraviolación to sunlight.
Furthermore, the performance of this coating, such as contamination resistance, incombustibility and environmental protection are very excellent.

The coating curtain wall panel outer composite ALUSIGN®

Overall, a higher content of PVDF and better weather resistance, less adhesive strength. The panel selects ALUSIGN® scientific arrangement in pairs or groups for coating PVDF. The percentage of PVDF in raw paint is low, but the adhesive strength is good for the premium paint to adhere well to the base material. Strictly speaking, creates a coating layer of thermoplastic PVDF, which has excellent endurance performance Mek.

Alusign Aluminum Composite Panel Material

Alusign Aluminum Composite Panel MaterialThe PVDF coating acp thickness can be measured by the enlarged cross-sectional diagram, the left drawing is a photograph magnified 4000 times. It can be calculated coating thickness measuring tape: PVDF Prime 5 ~ 7 micron PVDF paint varnish 20 ~ 23 microns. Such an arrangement PVDF coating is very reasonable, but to reduce cost, some lower panels are manufactured by increasing the thickness and the main thickness reduction PVDF.

 


2. Adhesive film

Alusign Aluminum Composite Panel MaterialA decorative film layer (such as PVC, PE film) adheres to the surface of the base material. Some types of movies fall into disuse due to poor weather resistance. PET film, a type of polyester film high performance, is a very thin coating layer of polyester on the surface of the base material, and then adheres to the coating polyester by a continuous method of applying thermal layers. There are many types of styles and can imitate all kinds of materials, such as marble and natural wood, etc. PET is increasingly popular because of their excellent weather resistance, compared to the normal processing organic surface coating.


3. Transform the coating

A type anticorrosion coating transformation in the metal surface by chemical method is created. Its performance is increasingly excellent time along with improved technology. Especially for a type of porcelain oxidation, there is a layer of compact oxidation A1203 aluminum surface.
The hardness of the surface is very strong, with excellent wear resistance and abrasion resistance, and can be used to decorate homes and has excellent performance of weather resistance. The market potential is very large.
Hongtai Group can supply the materials for curtain walls with several previous decorative coatings.

The protective film protects the panel from mechanical damage and pollution to cut, move, creasing and folding. After installation is complete, the protective film will peel off.
The ALUSIGN® panels adopt the protective film first grade quality provided by France and Germany.

● Basic film material: Double PE
performance delay is good; the weather resistance is better than PVC.

● Type of Structure: Interior in black, exterior in white
High cost, excellent weathering resistance, stable bond performance. The glue rarely remains on the panel surface.

● Glue type: Rubber
White exterior, black interior, black and white ultraviolación prevents ultraviolación reflects the performance of delay and protecting the adhesive film is excellent.


Alusign Aluminum Composite Panel Material Distinguish the quality of the protective film:
Film thickness> 0.08 mm, black interior and white exterior milky● According to the graph, the degree of transparency of the protective film must be very low.● The voice is generally low when the film with the rubber layer is torn, the cord is long and white, the brightness of the rubber layer is low.● The voice is generally high when the film with a layer of acryloyl breaks, the rope is very short and brightness of the rubber layer is high.● What mentioned above is only for reference. It may not be the final judgment, since it must be tested by an advanced instrument.

Adhesion’s principle of high molecular adhesive film
(Crylic acid polar branch can combine With polar metal surface to create hydrogen bond)
EAA * (ethylene-crylic acid copolymer)

Alusign Aluminum Composite Panel Material


Adhesion’s principle of high molecular adhesive film
(Crylic acid polar branch can combine With polar metal surface to create hydrogen bond)
EAA * (ethylene-crylic acid copolymer)

Alusign Aluminum Composite Panel Material
According to the test, the adhesive strength reflects the proportion of copolymer unit críclico acid in an adhesive film of high molecular weight to a film thickness of 0.5 mm aluminum as the following table.
Alusign Aluminum Composite Panel Material

Methods of production of adhesive film high molecular weight glue spray, spreading glue, radioactive combination, and coextrusion blow mold of two layers, etc.
The aluminum composite panel ALUSIGN® Rubber Nano Fire-Resistance and aluminum composite panel adopt a molecular adhesive film two layers, one side is opaque and the other side is slippery, the polar branch crílica acid dull side is akin to metal and the polished face has affinity with the core material.

Peeling Strength of ALUSIGN® products (GB / T2790)

Alusign Aluminum Composite Panel Material

There are mainly two kinds of core materials for the composite panel ALUSIGN®: polyethylene core for aluminum composite panel, rubber-plastic core nano flammable composite panel fire resistant aluminum.

1) Main materials of aluminum composite panel ALUSIGN®

The aluminum composite panel adopts ALUSIGN® core material mixing polyethylene extrusion grade quality, LDPE and L-LDPE. It has excellent properties such as easy processing, chemical resistance and mechanical performance, and avoids weakness (shrinkage ratio too soft and too high longitudinal). Therefore, the ALUSIGN® panels are maintained even when exposed to tropical heat or cold from the icy snowstorm.

2) Core Material composite panel fire resistant aluminum ALUSIGN®

It is a core material of a new type, which is developed by our company independently. It is the result alloy nano inorganic material and many kindly of high molecular weight material; the oxygen index is very high. It has excellent weather resistance and mechanical performance. Not only breaks the technical problem that the standard aluminum composite panel is not fireproof, but also greatly improves the dynamic performance of the folding position, which is the weakness of standard aluminum composite panel. It can be applied in more fields and enable use in higher buildings due to improved dynamics strength, fatigue property and corrosion resistance of folding position.