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Preparation method of powder coating used for surface of plastic-wood board

A technology for powder coatings and plates, applied in the field of coating technology, can solve the problems of difficult storage, poor leveling effect, easy agglomeration, etc., and achieves beautiful surface coating on plastic wood plates, saving manpower and material resources, and simple preparation method. Effect

Inactive Publication Date: 2018-09-07
FOSHAN SHANGLIFENG DECORATION MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the characteristics of no solvent, no pollution, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film, so the application of powder coatings on the surface of plastic wood materials has emerged as the times require. However, the existing preparation methods Powder coatings are not easy to store during transportation, that is, they are easy to agglomerate; when applied to plastic-wood panels, the leveling effect is not good, and the aesthetic effect cannot be achieved, and the preparation process is complicated and the production cost is low

Method used

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  • Preparation method of powder coating used for surface of plastic-wood board
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  • Preparation method of powder coating used for surface of plastic-wood board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Powder coatings used on the surface of plastic wood panels, powder coatings include by mass components:

[0032]

[0033]

[0034] The powder coating preparation method is:

[0035] Weighing: Weigh the components of polyneopentyl isophthalate, epoxy resin, polyethylene wax, polydimethylsiloxane, benzoin, titanium dioxide and kaolin;

[0036] Pulverization of polyneopentyl isophthalate: place polyneopentyl isophthalate in a pulverizer, and pulverize polyneopentyl isophthalate to 50 μm;

[0037] Mixing: Add polyneopentyl isophthalate powder, epoxy resin, polyethylene wax, polydimethylsiloxane, benzoin, titanium dioxide and kaolin to a high-speed mixer and mix for 18 minutes , to obtain a powder mixture;

[0038] Extrusion: Add the powder mixture to the twin-screw extruder, the screw speed is 200r / min, the head temperature is 260°C, add the extruded mixture to the inlet, repeat extrusion 4 times, cool, Obtain extruded block mixture;

[0039] Mixing and crushing: ...

Embodiment 2

[0043] Powder coatings used on the surface of plastic wood panels, powder coatings include by mass components:

[0044]

[0045] The powder coating preparation method is:

[0046] Weighing: Weigh the components of saturated polyester resin, epoxy resin, high melting point wax, polyether polyester modified organosiloxane, benzoin, titanium dioxide and talcum powder;

[0047] Saturated polyester resin pulverization: the saturated polyester resin is placed in a pulverizer, and the saturated polyester resin is pulverized to 60 μm;

[0048] Mixing: Add saturated polyester resin powder, epoxy resin, high melting point wax, polyether polyester modified organosiloxane, benzoin, titanium dioxide and talcum powder into a high-speed mixer and mix for 16 minutes. Obtain powder mixture;

[0049] Extrusion: Add the powder mixture to the twin-screw extruder, the screw speed is 230r / min, the head temperature is 245°C, add the extruded mixture to the inlet, repeat extrusion 4 times, cool,...

Embodiment 3

[0054] Powder coatings used on the surface of plastic wood panels, powder coatings include by mass components:

[0055]

[0056] The powder coating preparation method is:

[0057] Weighing: Weigh the components of unsaturated polyester resin, epoxy resin, high melting point wax, alkyl modified organosiloxane, benzoin, titanium dioxide and precipitated barium;

[0058] Unsaturated polyester resin crushing: put the unsaturated polyester resin in a pulverizer, and pulverize the unsaturated polyester resin to 100 μm;

[0059] Mixing: Add unsaturated polyester resin powder, epoxy resin, high melting point wax, alkyl modified organosiloxane, benzoin, titanium dioxide and precipitated barium into a high-speed mixer and mix for 12 minutes to obtain powder mix;

[0060] Extrusion: Add the powder compound to the twin-screw extruder, the screw speed is 300r / min, the head temperature is 220°C, add the extruded compound to the inlet, and repeat the extrusion 3-4 times. Cooling to obtai...

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PUM

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Abstract

The invention discloses a preparation method of a powder coating used for the surface of a plastic-wood board. The powder coating comprises the following components in parts by mass: 160-175 parts ofpolyester resin, 165-180 parts of epoxy resin, 5-9 parts of a brightener, 4-8 parts of a levelling agent, 2-4 parts of benzoin, 110-125 parts of titanium dioxide, and 130-138 parts of a filler. The powder coating used for the surface of the plastic-wood board disclosed by the invention can be stored for a long time, and can be stored at higher temperature without agglomeration; and when the powdercoating is applied to the surface of the plastic-wood board, the levelling effect is obvious, and the surface, coated by the powder coating, of the plastic-wood board is beautiful.

Description

technical field [0001] The invention relates to the field of paint technology, in particular to a preparation method of powder paint used on the surface of plastic-wood boards. Background technique [0002] Plastic wood is a new type of composite material that has been booming at home and abroad in recent years. It refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc., instead of the usual resin adhesive, and mixed with waste plant fibers such as wood powder, rice husk, straw, etc. to form a new composite material. Wooden materials are processed by extrusion, molding, injection molding and other plastic processing techniques to produce panels or profiles. [0003] When the wood-plastic material is made into a specific item, the surface needs to be treated to achieve the effect of protecting the wood-plastic or aesthetically pleasing. Many existing paints are used for surface coating, but paints generally contain toxic substances such as benzene or to...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D167/02C09D167/00C09D167/06C09D5/03C09D7/61C09D7/63
CPCC09D163/00C08K2003/2241C08K2003/3045C08L2205/03C08L2205/035C09D5/033C08L67/02C08L83/04C08K3/22C08K3/346C08L67/00C08K3/34C08L67/06C08K13/02C08K5/5415C08K3/30
Inventor 冯志坚
Owner FOSHAN SHANGLIFENG DECORATION MATERIALS CO LTD