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A kind of polyester resin powder coating

A powder coating, polyester resin technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problem that the impact resistance of the coating is not significantly improved, affects the appearance of the coating, and affects the graphene coating. performance and other issues, to avoid shape effects, improve impact performance, and improve stability

Active Publication Date: 2022-04-12
宁波格林斯粉末涂装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of graphene that is easy to agglomerate, graphene in powder coatings is not easy to disperse, resulting in uneven distribution of graphene in the coating coated on the surface of the workpiece, which affects the improvement of graphene to coating performance, making the coating The improvement of impact resistance is not obvious. In addition, because the graphene in the coating is easily distributed unevenly, in the area where the graphene distribution is less in the coating, the surface strength of the coating is low, and it is easy to appear under external force. Scratches or damage that affect the aesthetics of the coating

Method used

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  • A kind of polyester resin powder coating
  • A kind of polyester resin powder coating
  • A kind of polyester resin powder coating

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preparation example Construction

[0032] The preparation method of described powder coating comprises the following steps:

[0033] S1: Select metal materials and prepare continuous metal fibers by cluster drawing method, and then cut the metal fibers to obtain chopped metal wires;

[0034] S2: After uniformly mixing polyester resin, epoxy resin, modifier, benzoin, and leveling agent according to a given ratio, put the mixture into a stirring tank, and fully stir the raw materials in the stirring tank;

[0035] S3: On the basis of the step S2, add a coupling agent and a curing agent to the stirred tank, and fully stir and mix to obtain a premix;

[0036] S4: On the basis of step S3, put the premixed material into the twin-screw extruder, and the extruded material is compressed and cooled to obtain a sheet material;

[0037] S5: Put the flake material into the pulverizer and pulverize it to obtain granules, and fully mix the chopped wire with the pulverized granules to obtain the finished powder coating;

[0...

Embodiment approach

[0043] As an embodiment of the present invention, after the metal wire is re-stretched under heating, the metal wire presents a wave shape;

[0044] When working, after the metal wire is restored to its original shape, the metal wire presents a wavy shape, which can improve the bonding force between the metal wire and the coating, and prevent the coating from cracking and crack gaps when the coating is impacted by external forces. There is slippage along the length direction of the metal wire, which causes the cracks in the coating to expand, which increases the damage of the coating, affects the normal use of the coating, and affects the protection effect of the coating on the workpiece.

[0045] As an embodiment of the present invention, after the metal wire is surface-treated, the metal wire is crimped into a ball; the surface treatment of the metal wire is gas-phase low-temperature plasma treatment, and the treatment time is 10-12 minutes;

[0046] When working, before the...

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Abstract

The invention belongs to the technical field of polyester resin powder coatings, specifically a polyester resin powder coating. The polyester resin powder coating of the invention comprises the following components in parts by weight: polyester resin 40-45% , filler 15-20%, modifier 8-10%, benzoin 2-3%, coupling agent 1-1.2%, leveling agent 0.8-1%, curing agent 0.5-0.7%, and the balance is epoxy resin ; The modifying agent is a mixture of nano-titanium dioxide and nano-silicon dioxide, and the ratio between the two is 1:1; the filler is a wire, and the length of the wire is 15-25um; the wire The diameter of the coating is 2-3um; the preparation method of the coating of the present invention is simple, the production cost is low, the performance of the coating is excellent, and it has good use and promotion value.

Description

technical field [0001] The invention belongs to the technical field of polyester resin powder coatings, in particular to a polyester resin powder coating. Background technique [0002] Powder coating is a solid powder synthetic resin coating composed of solid resin and pigments, fillers and additives. Different from ordinary solvent-based paints and water-based paints, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film formation, and low energy consumption. There are two types of powder coatings: thermoplastic and thermosetting. Thermoplastic powder coatings have poor film appearance (gloss and leveling) and poor adhesion to metals; thermosetting powder coatings use thermosetting synthetic resins as film-forming substances. During the drying process, the resin melts first, and then solidifies into a flat and hard coating film after chemical crosslinking. The polyester powder coatings currently on the marke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D163/00C09D5/03C09D7/61C09D7/62C09D5/46
CPCC09D167/00C09D5/033C08K2201/011C08K2003/2241C08L63/00C08K9/00C08K9/04C08K7/06C08K3/22C08K3/36
Inventor 张大朋王亮亮刘汉杰
Owner 宁波格林斯粉末涂装有限公司
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