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Weather-resistant steel plate

A weather resistance, steel plate technology, used in coatings, layered products, polyester coatings, etc., can solve the problems of difficult large-area construction, poor metal adhesion, high production costs, and achieve excellent adhesion and processability. The effect of better thermal properties and thermal hardness, excellent solvent resistance

Active Publication Date: 2015-03-11
GUANGDONG ARMSTRONG METAL CEILING PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the advancement of technology, it is found that silicone resin also has better heat resistance. The basic skeleton of silicone resin is the main chain of Si-O, which has higher bond energy than the C-C bond of ordinary polymers. Heat resistance and anti-oxidation are also strong. Normally, the heat resistance temperature of silicone resin is 300°C. It has been proved by practice that in addition to heat resistance, silicone resin also shows excellent weather resistance and stain resistance. , water removal, cold resistance and chemical corrosion resistance, etc., but in actual use, there are still the following problems, such as: need high temperature curing (above 250 ℃) and long curing time, difficult large-scale construction, adhesion to metal Poor, poor solvent resistance and high production cost, for this reason, we must find a high-performance material that can replace silicone resin for the coating treatment of steel plates. Polyester resin or epoxy resin for higher heat resistance

Method used

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  • Weather-resistant steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The weather-resistant steel sheet involved in this embodiment is prepared by coating and baking the pre-coated steel sheet with a base coating and a surface coating in sequence, wherein the base coating is applied to the surface of the pre-coated steel sheet to form a base coating , Calculated by weight percentage, the base coating contains the following components:

[0029] Silicone modified polyester resin: 30%; filler: 20%;

[0030] Silicone coupling agent: 1%; Phthalate: 0.5%;

[0031] Xylene solvent: 48.5%.

[0032] The surface coating is applied to the surface of the base coating film to form a surface coating. The surface coating includes the following components in terms of weight percentage:

[0033] Silicone modified polyester resin: 40%; pigment: 10%;

[0034] Polyamide curing agent: 5%; filler: 10%;

[0035] Silicone coupling agent: 1.2%; xylene solvent: 33.8%.

[0036] The following is a further description of the composition of the above components:

[0037] Silicone m...

Embodiment 2

[0041] The weather-resistant steel sheet involved in this embodiment is prepared by coating and baking the pre-coated steel sheet with a base coating and a surface coating in sequence, wherein the base coating is applied to the surface of the pre-coated steel sheet to form a base coating , Calculated by weight percentage, the base coating contains the following components:

[0042] Silicone modified polyester resin: 50%; filler: 46%;

[0043] Silicone coupling agent: 2%; Phthalate: 1%;

[0044] Xylene solvent: 1%.

[0045] The surface coating is applied to the surface of the base coating film to form a surface coating. The surface coating includes the following components in terms of weight percentage:

[0046] Silicone modified polyester resin: 60%; Pigment: 15%;

[0047] Polyamide curing agent: 7%; filler: 15%;

[0048] Silicone coupling agent: 1.8%; xylene solvent: 1.2%.

[0049] The following is a further description of the composition of the above components:

[0050] Silicone modifie...

Embodiment 3

[0054] The weather-resistant steel sheet involved in this embodiment is prepared by coating and baking the pre-coated steel sheet with a base coating and a surface coating in sequence, wherein the base coating is applied to the surface of the pre-coated steel sheet to form a base coating , Calculated by weight percentage, the base coating contains the following components:

[0055] Silicone modified polyester resin: 45%; filler: 46%;

[0056] Silicone coupling agent: 1.5%; Phthalate: 0.5%;

[0057] Xylene solvent: 7%.

[0058] The surface coating is applied to the surface of the base coating film to form a surface coating. The surface coating includes the following components in terms of weight percentage:

[0059] Silicone modified polyester resin: 55%; Pigment: 12%;

[0060] Polyamide curing agent: 6%; filler: 14%;

[0061] Silicone coupling agent: 1.5%; xylene solvent: 11.5%.

[0062] The following is a further description of the composition of the above components:

[0063] Silicone ...

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Abstract

The invention discloses a weather-resistant steel plate which is prepared from a pre-coated steel plate coated and roasted by a basic coating and a surface coating sequentially. The basic coating and the surface coating used by the invention are prepared from organosilicone modified polyester resin as a base material and other auxiliaries. According to the weather-resistant steel plate disclosed by the invention, due to excellent heat resisting temperature, excellent adhesiveness and processibility on metal materials, excellent solvent resistance, good high-heat hardness and the like, the organosilicone modified polyester resin can be used for being sprayed on metal surfaces of iron materials, aluminum products or stainless steel and the like and can be widely applied to heat-resisting materials, such as a petroleum refining furnace, an aluminum refining furnace, an engine exhaust system and an engine silencer, which are in a high-temperature working condition for a long time.

Description

Technical field [0001] The invention belongs to the field of metal materials, and specifically, is a weather-resistant steel plate. Background technique [0002] The steel plate is made by coating and drying the pre-coated steel plate before processing and forming. Since the coating film is also subjected to forming processing after the film is formed, not only the pre-coated steel plate is required to meet the high requirements of hardness and forming The coating material used in its coating also needs processing resistance. In the field of metal materials, the coating on the metal can not only protect and beautify the appearance of the metal, such as rust prevention and coloring, etc., sometimes, the coating can also be used to achieve some special functions, such as improving lubrication and deep drawing Performance etc. In the actual application process, the effect of the coating is closely related to the coating. Take heat-resistant paint as an example. Heat-resistant pai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D7/12B32B33/00
CPCC08K3/08C08K3/22C08K3/34C08K3/346C08K3/36C08K3/40C08K13/02C08K2003/0812C08K2003/2241C08K2003/2251C08K2201/014C08L2201/08C09D7/20C09D7/61C09D7/63C09D167/00
Inventor 张一帆
Owner GUANGDONG ARMSTRONG METAL CEILING PRODS
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