Saturated polyester resin and preparation method thereof, orange grain powder coating containing same and preparation method thereof

A polyester resin and plastic technology, applied in the fields of orange grain powder coating and preparation, saturated polyester resin and preparation, can solve the problems of outdoor weather resistance, water resistance, UV resistance, scratch resistance, and limited dosage and application. and other problems, to achieve the effect of wide range of use, good water resistance and high hardness

Active Publication Date: 2020-02-18
江西杰克西新材料有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most of the waste polyester is colored, the produced polyester resin for powder coatings is also darker in color, which limits its amount and use.
Moreover, the existing polyester powder coatings produced by using waste polyester as raw materials are not ideal in terms of outdoor weather resistance, water resistance, ultraviolet resistance, and scratch resistance.

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
  • Saturated polyester resin and preparation method thereof, orange grain powder coating containing same and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]A preparation method for orange grain powder coating, comprising the following steps:

[0048] 1) Set the temperature of the far-infrared electric heating 2000L reactor equipped with stirring device, vertical condenser and horizontal condenser at 270°C, and start heating; put in 600kg of waste ethylene glycol residue crushed material, waste PEN plastic in turn Broken material 100kg, neopentyl glycol 150kg, diethylene glycol 50kg, ethylene glycol antimony 1.1kg; heat up to 160°C within two hours, start the stirring device at 20-30r / min, and control the top of the vertical condenser The temperature does not exceed 105°C, continue to heat up to 260-270°C for 3-5 hours, complete the transesterification chemical reaction and alcoholysis reaction until the plastic is melted and transparent; when the temperature drops to 180-190°C, add 100kg of trimellitic anhydride and 50kg of adipic acid , Monobutyltin oxide 0.5kg, AT168 antioxidant 3.5kg, AT10 antioxidant 1.5kg, then set the...

Embodiment 2

[0051] A preparation method for orange grain powder coating, comprising the following steps:

[0052] 1) Set the temperature of the far-infrared electric heating 2000L reactor equipped with stirring device, vertical condenser and horizontal condenser at 270°C, and start heating; put in 700kg of waste ethylene glycol residue crushed material, waste PEN plastic in turn Broken material 35kg, neopentyl glycol 50kg, diethylene glycol 100kg, ethylene glycol antimony 1kg; after two hours, heat up to 160°C, start the stirring device at 20-30r / min, and control the top of the vertical condenser The temperature does not exceed 105°C, continue to heat up to 260-270°C for 3-5 hours, complete the transesterification chemical reaction and alcoholysis reaction until the plastic is melted and transparent; when the temperature drops to 180-190°C, add 50 kg of trimellitic anhydride and 50 kg of adipic acid , 0.5kg of monobutyltin oxide, 3.5kg of AT168 antioxidant, 1.5kg of AT10 antioxidant, set ...

Embodiment 3

[0055] A preparation method for orange grain powder coating, comprising the following steps:

[0056] 1) Set the temperature of the far-infrared electric heating 2000L reactor equipped with stirring device, vertical condenser and horizontal condenser at 270°C, and start heating; put in 650kg of waste ethylene glycol residue crushed material, waste PEN plastic in turn Broken material 60kg, neopentyl glycol 50kg, diethylene glycol 150kg, zinc acetate 1.1kg; after two hours, heat up to 160°C, start the stirring device at 20-30r / min, and control the temperature at the top of the vertical condenser Do not exceed 105°C, continue to heat up to 260-270°C for 3-5 hours, complete the transesterification chemical reaction and alcoholysis reaction until the plastic is melted and transparent; when the temperature is lowered to 180°C-190, add 70 kg of trimellitic anhydride and 50 kg of adipic acid, mono Butyl tin oxide 0.5kg, AT168 antioxidant 3.5kg, AT10 antioxidant 1.5kg, set the temperat...

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
melting pointaaaaaaaaaa
softening pointaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses saturated polyester resin. The invention also discloses a preparation method of the saturated polyester resin, and the preparation method is characterized in that crushed waste glycol residues and crushed waste PEN plastics carry out transesterification chemical reaction and alcoholysis reaction through polyatomic alcohol, and then the saturated polyester resin is prepared by condensation of polyatomic acid. The invention also discloses orange-peel powdered paint containing the saturated polyester resin and a preparation method thereof, and the preparation method comprises the following steps: charging the saturated polyester resin, epoxy resin, a pigment, a filler and an auxiliary agent into a mixing machine, conducting melting and extrusion through an extruder, conducting cooling by a pelletizer and conducting pulverizing by a pulverizer. The orange-peel powdered paint disclosed by the invention has light color, high hardness and wide range of application, and can satisfy the requirements of painting of indoor metal external appearances of fine arts.

Description

technical field [0001] The invention relates to the field of powder coatings, in particular to a saturated polyester resin and a preparation method thereof, an orange pattern powder coating containing the resin and a preparation method thereof. Background technique [0002] In recent years, the domestic polyester chemical industry has developed rapidly, and more than 4% of waste products will be produced during the production of polyester. At the same time, the amount of ethylene glycol residues and PEN waste plastics discarded is also amazing, reaching tens of thousands of tons every year. The existence of these waste products not only has a significant impact on the environment, but also a huge waste of resources. How to effectively utilize these waste products has become an important issue. At present, the common domestic utilization method is to produce polyester hot-melt adhesive short fibers and polyester powder coatings from waste polyester. [0003] Powder coating ...

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): C08G63/672C08G63/78C09D167/02C09D163/00C09D133/04C09D127/18C09D5/03C09D5/28C09D7/61C09D7/65
CPCC08G63/672C08G63/78C08L2201/08C08L2205/035C09D5/033C09D5/18C09D5/28C09D167/02C08L63/00C08L33/04C08L27/18
Inventor 王红星
Owner 江西杰克西新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap