Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of low temperature curing powder coating and its preparation method and application

A powder coating, low-temperature technology, applied in powder coatings, polyester coatings, anti-corrosion coatings, etc., can solve the problems of long baking time and high baking temperature, and achieve excellent anti-corrosion performance, good coating leveling, and high mechanical strength. Performance and Effects of Corrosion Protection

Active Publication Date: 2022-05-17
北京碧海云智新材料技术有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For conventional powder coatings, the curing temperature is generally 180-200°C, and there are disadvantages of high baking temperature and long baking time.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of low temperature curing powder coating and its preparation method and application
  • A kind of low temperature curing powder coating and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0043] The present invention also provides a method for preparing the low-temperature curing powder coating described in the above technical solution, comprising the following steps:

[0044] mixing epoxy resin, curing agent, pigment and filler, leveling agent, degassing agent, anti-sedimentation agent and catalyst and then melt extruding to obtain the base powder;

[0045] The flour is obtained by mixing polyester resin, TGIC curing agent, catalyst, pigment and filler, leveling agent, degassing agent and anti-ultraviolet absorbing agent, and then melting and extruding.

[0046] In the invention, epoxy resin, curing agent, pigment and filler, leveling agent, degassing agent, anti-sedimentation agent and catalyst are mixed and then melted and extruded to obtain the base powder. In the present invention, the temperature of the melt extrusion is preferably 70-100°C. In the present invention, the melt extrusion is preferably performed in an extruder.

[0047] After the melt extr...

Embodiment 1

[0064] A low-temperature curing powder coating (base powder), comprising the following components by weight:

[0065] 100 parts of epoxy resin NPES904, 3.0 parts of low-temperature curing agent Epikure P-101, 0.5 parts of catalyst methylimidazole, 0.5 parts of carbon black, 5.0 parts of rutile titanium dioxide, 15 parts of 400 mesh sericite, 15 parts of 1250 mesh wollastonite, Degassing agent benzoin 0.3 parts, leveling agent Resiflow PV88 2 parts and anti-settling agent M-5 0.5 parts.

[0066] A low-temperature curing powder coating (flour), comprising the following components by weight:

[0067] 100 parts of polyester resin Uralac P3291, 6.7 parts of TGIC curing agent Araldite PT810, 0.5 parts of catalyst methylimidazole, 5 parts of rutile titanium dioxide, 10 parts of iron oxide yellow, 0.1 part of iron oxide red, 0.5 parts of degassing agent benzoin, leveling Agent Moda-flow powder 2000 2 parts and anti-ultraviolet absorbing agent AS801 1.0 parts.

[0068] The preparatio...

Embodiment 2

[0082] A low-temperature curing powder coating (base powder), comprising the following components by weight:

[0083] 100 parts of epoxy resin NPES904, 3.0 parts of low-temperature curing agent Epikure P-101, 0.3 parts of catalyst methylimidazole, 0.5 parts of carbon black, 5.0 parts of rutile titanium dioxide, 10 parts of 400 mesh sericite, 20 parts of 1250 mesh wollastonite, 0.3 part of benzoin, 1 part of leveling agent BYK-368P and 0.3 part of anti-settling agent M-5.

[0084] A low-temperature curing powder coating (flour), comprising the following components by weight:

[0085] 100 parts of polyester resin Uralac P3291, 6.1 parts of TGIC curing agent Araldite PT810, 0.5 parts of choline chloride catalyst, 5 parts of rutile titanium dioxide, 10 parts of iron oxide yellow, 0.1 part of iron oxide red, 0.5 parts of degassing agent benzoin, Leveling agent BYK-368P 2 parts and anti-ultraviolet absorbing agent Tinuvin 1441.0 parts.

[0086] The preparation method is the same a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a low-temperature curing powder coating and its preparation method and application, belonging to the field of coatings. Including independently packaged base powder and flour, base powder includes epoxy resin, curing agent, pigment filler, leveling agent, degassing agent, anti-settling agent and catalyst; flour includes polyester resin, TGIC curing agent, catalyst, pigment Filler, leveling agent, degassing agent and anti-ultraviolet absorbing agent, epoxy resin with low softening point, polyester resin and low-temperature curing agent (amine curing agent and TGIC curing agent), TGIC curing agent are selected for the base powder and flour respectively During the low-temperature curing process, the melt viscosity of the coating is relatively high. The reactivity of the system and the surface state of the coating are controlled by adjusting the weight of the catalyst and leveling agent in the flour and base powder. The coating can be cured at a low temperature of 120-160 °C.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a low-temperature curing powder coating and its preparation method and application. Background technique [0002] Due to the high requirements on the appearance of construction machinery coatings, epoxy paints, epoxy intermediate paints, polyurethane topcoats, acrylic topcoats, etc. are often used as the main coatings. The use of solvent-based coatings is accompanied by VOC emissions, which pollute the environment. As people's awareness of environmental protection is increasing, national laws and regulations have stricter environmental protection requirements for coatings. The traditional solvent-based coating process with low utilization rate and high environmental pollution is no longer suitable for the development of the new era. Powder coating has the characteristics of zero VOC and high coating efficiency. Compared with traditional solvent-based coatings, it is more economi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/03C09D5/08C09D167/00C09D7/61
CPCC09D163/00C09D5/033C09D5/08C09D167/00C08K2003/2241C08K2003/2272C08L2201/08C08K3/04C08K3/22C08K3/34Y02A50/20
Inventor 盛庆南谢静邸泰深霍振友
Owner 北京碧海云智新材料技术有限公司