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Ferrocene /carbon dioxide releasing system

A technology of ferrocene and ferrocene derivatives, applied in the direction of thin material processing, coating, fire protection equipment, etc., can solve problems such as interference with coating ability, rheology, color, and increased manufacturing costs

Inactive Publication Date: 2014-03-19
EMPIRE TECH DEV LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ferrocene interferes with polymer properties such as coatability, rheology, color, etc.; and the cost of synthesizing ferrocene polymer conjugates increases the manufacturing cost of such polymers

Method used

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  • Ferrocene /carbon dioxide releasing system
  • Ferrocene /carbon dioxide releasing system
  • Ferrocene /carbon dioxide releasing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Stabilized Calcium Carbonate in Silica

[0033] 100g CaCO 3 Microparticles or nanoparticles (such as obtained by ball milling) are added to the 2L flask. 500mL of 1M Na 2 SiO 3 The solution was added to the flask, and the slurry was homogenized by sonication for 30 minutes. 1M HCl solution was dropped into the vessel while stirring at room temperature, and the pH of the solution was titrated to pH=8. The suspension was heated to 80°C and kept under vigorous stirring for 2 hours. The encapsulated carbonate was filtered and washed with water and acetone, then dried and stored until use.

Embodiment 2

[0034] Example 2: Ferrocene Encapsulated in Silica

[0035] 100 g of ferrocene powder was ball milled to reduce the particle size, and then filled into a 2 L flask. 500mL of 1M Na 2 SiO 3 The solution was added to the flask, and the slurry was homogenized by sonication for 30 minutes. 1M HCl solution was dropped into the vessel while stirring at room temperature, and the pH of the solution was titrated to pH=8. The suspension was heated to 80°C and kept under vigorous stirring for 2 hours. The encapsulated ferrocene was filtered and washed with water, acetone and hexane, then dried and stored until use.

Embodiment 3

[0036] Example 3: Ferrocene and Calcium Carbonate Encapsulated in Silica

[0037]100 g of ball-milled ferrocene powder and 100 g of stabilized calcium carbonate were charged into a 2L flask. 500mL1M Na 2 SiO 3 The solution was added to the flask, and the slurry was homogenized by sonication for 30 minutes. 1M HCl solution was dropped into the vessel while stirring at room temperature, and the pH of the solution was titrated to pH=8. The suspension was heated to 80°C and kept under vigorous stirring for 2 hours. The encapsulated ferrocene / carbonate was filtered and washed with water, acetone and hexane, then dried and stored until use.

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Abstract

Microparticles that encapsulate a fire extinguishing agent or combination of fire extinguishing agents, methods for preparing these microcapsules, methods for using such microcapsules, and articles of manufacture including at least one of such microparticles either in a coating or in a matrix that makes up a structural component of the article of manufacture are disclosed.

Description

Background technique [0001] Ferrocene (Fe(C 5 h 5 ) 2 ) in combination with carbon dioxide has shown excellent flame retardancy. In this combination, ferrocene probably destroys the free radicals that allow the flame to spread by decomposing into bare iron atoms, while CO 2 Such inert gases enhance this effect by preventing atomic iron from being trapped by oxygen, prolonging the efficacy of the composition. [0002] Free ferrocene is generally not used alone as a refractory agent because of its low melting point of 174°C and boiling point of 249°C; even before melting, ferrocene can sublime into the gas phase. Thus, many attempts have been made to conjugate ferrocenes to polymer backbones to impart fire resistance to polymers. However, ferrocene interferes with polymer properties such as coatability, rheology, color, etc.; and the cost of synthesizing ferrocene polymer conjugates increases the manufacturing cost of such polymers. Furthermore, even with slight heating, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K21/00C09D7/62
CPCC08K9/02C09D5/185C09D7/1291C08K3/0058A62D1/06C09K21/06C09D7/70C08K3/016Y10T428/25Y10T428/2984C09D7/62
Inventor 李光烈S·A·米勒
Owner EMPIRE TECH DEV LLC