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A kind of high-efficiency environment-friendly flame retardant for coating flame retardant and preparation method thereof

An intumescent flame retardant and coating technology, applied in the field of flame retardant coatings and new environmentally friendly flame retardants, can solve the problems of water resistance, low humidity and heat resistance, and achieve good flame retardant effect and good synergistic flame retardant effect. , the effect of cost reduction

Inactive Publication Date: 2011-12-14
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, P-C-N series products in intumescent flame retardant coatings are the most widely used at home and abroad, but this type of intumescent flame retardant coatings mainly have problems such as water resistance, heat and humidity resistance and low flame retardancy.
In addition, the flame retardant coating may also produce the danger of highly toxic hydrogen cyanide during combustion.

Method used

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  • A kind of high-efficiency environment-friendly flame retardant for coating flame retardant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 (comparative example)

[0023] Add 1.5 g of silane coupling agent grade 2.0 g of organically modified bentonite to 100 g of alkyd resin under mechanical stirring, and mix evenly at a high shear rate to obtain an alkyd resin coating.

Embodiment 2

[0024] Embodiment 2 (melamine comparative example)

[0025] Compound 42g of ammonium polyphosphate, 25g of pentaerythritol, and 5g of melamine to form a new flame retardant. After grinding for 1-2 hours, mix well, add to 100g of alkyd varnish, stir for 0.5-1h, add 2.1g of silane coupling agent grade 2.8 g Organically modified bentonite, mixed evenly at a high shear rate, can obtain intumescent flame-retardant coatings.

Embodiment 3

[0027] Compound 27g of ammonium polyphosphate, 12g of pentaerythritol, and 9g of tea saponin to form a new flame retardant, grind for 1-2 hours, mix well, add to 100g of alkyd varnish, stir for 0.5-1h, add 2.1g of silane coupling agent Grade 2.8g organically modified bentonite, mixed evenly at high shear rate, can get a new type of intumescent flame retardant coating.

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Abstract

The invention relates to a flame retardant of an environment-friendly expansion type flame retardant coating and a preparation method thereof. In the present invention, tea saponin is used as gas source, acid source and carbon source to form a new type of flame retardant in a certain proportion. Alkyd resin varnish is used as base material, and auxiliary agents such as coupling agent and dispersant are added to form a high-efficiency flame retardant. burn paint. In terms of the weight percentage of the solid content of the coating, its important components are: alkyd resin varnish 40-60%; ammonium polyphosphate 25-35%; pentaerythritol 12-18%; tea saponin 2-5%; silane coupling agent 1 -3%; organic bentonite 1-3%. The preparation method is as follows: mix tea saponin, ammonium polyphosphate and pentaerythritol in proportion, grind them sufficiently to obtain superfine powder, then add them to alkyd resin varnish in a certain proportion, stir and mix well, add silane coupling The joint agent and organic bentonite are fully stirred and dispersed in a high-speed shear mixer to obtain a finished product. The invention does not contain a halogen flame retardant, has the advantages of low volatility, excellent flame retardancy, good coating film performance, high efficiency and environmental protection, and the like.

Description

technical field [0001] The invention relates to a new type of environmentally friendly flame retardant that can be used for flame retardancy of coatings, specifically, a new type of flame retardant prepared by compounding tea saponin as a gas source to replace melamine in traditional intumescent flame retardants, and an acid source and a carbon source An environmentally friendly flame retardant that can be used in flame-retardant coatings can obtain flame-retardant coatings with good flame-retardant effects and environmental friendliness. technical background [0002] Flame-retardant coatings are the most widely used, most applicable, and most convenient construction materials in modern engineering, and they have played a huge role in ensuring the safety of buildings. With the improvement of people's living taste, people are more fond of building materials such as wooden structures and steel structures. On the one hand, the flame-retardant coating has a beautiful effect on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D5/00C09D167/08
Inventor 李湘洲吴志平钱伟
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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