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Molecule assembly nano medicine-carrying antibiosis composite dope

A nano-drug-loading and composite coating technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problem of not being suitable for heat-sensitive substrates, avoid the reduction of drug efficacy, improve compatibility, and improve Antibacterial effect

Inactive Publication Date: 2008-03-26
HUNAN ZHICHENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, powder coatings based on epoxy resins and polyester resins generally need to be cured by heating in the temperature range of 180-200°C, and are not suitable for heat-sensitive substrates, such as paper, plastic, medium-density wood-based panels and wood, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Using negatively charged silver iodide colloidal particles as the core, composite nano-TiO was synthesized by molecular self-assembly method 2 microspheres, nanocomposite TiO 2 After compounding with modified epoxy resin, it is combined with modified polyester resin, epoxy-siloxane resin, photoinitiator, curing agent, curing accelerator, leveling agent and other components through a twin-screw extruder. Extrude at elevated temperature, cool down and pulverize to prepare antibacterial and fresh air nano-composite multifunctional powder coatings. The obtained powder coatings are electrostatically sprayed on heat-sensitive substrates, melted and leveled at 100-120°C, and then cured by ultraviolet light. Polymer coating with antibacterial and air freshening properties.

[0032] At room temperature, 1050 ml of 0.10M silver nitrate aqueous solution was reacted with 1000 ml of 0.10M potassium iodide solution to prepare silver iodide sol. Due to the excess of silver nitrate, ...

Embodiment 2

[0047] The components are uniformly premixed according to the following formula, then extruded and granulated by a twin-screw extruder, and finally pulverized to obtain an ultraviolet light low-temperature curing powder coating with a particle size of 10-50 microns.

[0048] Nano composite modified epoxy resin 25kg

[0049] Modified polyester resin 15kg

[0050] Epoxy-silicone resin 10kg

[0051] Curing agent 6kg

[0052] Curing Accelerator 4kg

[0053] Photoinitiator 0.5kg

[0054] Leveling agent 0.5kg

[0055] Degasser 0.5kg

[0056] Brightener 0.4kg

[0057] Titanium dioxide 25kg

[0058] Pigment 1kg

[0059] The rest are the same as Embodiment 1.

Embodiment 3

[0061] The components are uniformly premixed according to the following formula, then extruded and granulated by a twin-screw extruder, and finally pulverized to obtain an ultraviolet light low-temperature curing powder coating with a particle size of 10-50 microns.

[0062] Nano composite modified epoxy resin 35kg

[0063] Modified polyester resin 20kg

[0064] Epoxy-siloxane resin 15kg

[0065] Curing agent 10kg

[0066] Curing Accelerator 6kg

[0067] Photoinitiator 1kg

[0068] Leveling agent 0.8kg

[0069] Degasser 1kg

[0070] Brightening agent 0.8kg

[0071] Titanium dioxide 35kg

[0072] Pigment 2kg

[0073] The rest are the same as Embodiment 1.

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PUM

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Abstract

The present invention relates to one kind of molecule assembled nanometer composite antiseptic paint. Through molecule self-assembling to synthesize nanometer composite TiO2 microsphere; compounding nanometer composite TiO2 microsphere with modified epoxy resin; mixing with modified polyester resin, epoxy-siloxane resin, photoinitiator, curing agent, curing promoter, leveling agent and other components; sectionally heating and extruding in a double screw extruder; cooling and crushing, the nanometer composite multifunctional paint powder with antisepsis and air freshening functions is prepared. The paint of the present invention is suitable for coating to paper, plastic, medium density at least board, timber and other base materials.

Description

technical field [0001] The invention relates to a molecularly assembled nanometer drug-carrying antibacterial agent and its ultraviolet low-temperature curing nanocomposite multifunctional powder coating and its preparation, which is suitable for coating heat-sensitive substrates such as paper, plastic, medium-density wood-based panels, and wood. Background technique [0002] Powder coating is a coating with 100% solid content. It has the characteristics of no solvent, no pollution, energy and resource saving, labor intensity reduction and high mechanical strength of the coating film. It has become a green industry in the coating industry. As a zero-volatile organic compound (VOC) product, powder coatings are very easy to recover after spraying, and are usually easier to apply than liquid coatings, and the durability of the formed coating film is better. However, powder coatings based on epoxy resins and polyester resins generally need to be cured by heating in the temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/14C09D5/03C09D7/12C09D167/00C09D183/06
Inventor 李朝晖赵延良冯伟云李晶
Owner HUNAN ZHICHENG NEW MATERIAL
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