A silica fume modified intumescent flame retardant wood composite coating

A composite coating and intumescent technology, which is applied in polyester coatings, fire-resistant coatings, coatings, etc., can solve the problems of less research on the modification of flame-retardant wood coatings, and achieve strong self-extinguishing properties, high flame-retardant performance, and thermal stability sex high effect

Active Publication Date: 2019-11-26
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the use of industrial solid waste silica fume to prepare intumescent flame-retardant materials has not been reported as a functional filler for flame-retardant coatings after chemical treatment and modification, especially silica fume is based on polyester resin film-forming materials. Fewer studies on modification of flame retardant wood coatings

Method used

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  • A silica fume modified intumescent flame retardant wood composite coating
  • A silica fume modified intumescent flame retardant wood composite coating
  • A silica fume modified intumescent flame retardant wood composite coating

Examples

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Effect test

Embodiment 1

[0024] This embodiment provides a method for preparing a silica fume modified intumescent flame-retardant wood composite coating, which includes the following raw materials:

[0025]

[0026] Its preparation includes the following steps:

[0027] First, prefabricate silica fume-based sol: Dissolve the formulated amount of activator into quantitative water and place it in a magnetic heating stirrer at 60°C for 30 minutes at a stirring speed of 300 r / min. At the same time, add the formulated amount of silica fume to obtain silica fume-based sol; At the same time, fully stir the formula ammonium polyphosphate, pentaerythritol, urea, and polyester resin to form a uniform jelly; then pour the prefabricated silica fume-based sol into the jelly, and add it in about 3 to 5 minutes, at 1000 to 1500r / min Stirring for 10-15min, standing still to get the composite coating.

[0028] The composite coating is coated on the surface of the plywood sample, and its limiting oxygen index (LO...

Embodiment 2

[0031] This embodiment provides a preparation method of silica fume modified intumescent flame-retardant wood composite coating, including the following raw materials:

[0032]

[0033] The preparation steps are the same as in Example 1, and the test results are shown in Table 1.

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Abstract

The present invention proposes a silica fume modified expansive flame-retardant wood composite coating, which uses the following raw materials and proportions: 14-15% ammonium polyphosphate, 10%-12% pentaerythritol, 10%-12% urea, and 20% polyester resin ~24%, the dosage of silica fume is 0.5%~2%, and the activator is sodium silicate solution (C Na + =6~7mol*L ‑1 ). The innovation of the present invention lies in opening up a new way of preparing organic expansive flame-retardant coatings with silica fume, ammonium polyphosphate, pentaerythritol, urea and polyester resin, and improving its flame-retardant performance.

Description

technical field [0001] The invention belongs to the technical field of chemical building materials and fire safety, and in particular relates to a silica fume-modified expansive flame-retardant wood composite coating. Background technique [0002] Chemical intumescent flame retardants meet the characteristics of low toxicity, low environmental load, anti-melt droplet, and high-efficiency flame retardancy, but there are still the following problems to be solved urgently: (1) poor water resistance and easy deliquescence; (2) compatibility with flame retardant bases (3) The thermal stability is not high; (4) The anti-aging performance is low. [0003] The flame-retardant coatings compounded and modified by organic compounds not only maintain the rigidity and high temperature stability of inorganic coatings, but also have the flexibility and brushability of organic coatings, and at the same time avoid or reduce the aging, pollution resistance and resistance of organic materials....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D5/18
CPCC08K3/34C08K5/053C08K5/21C08K13/02C08K2003/323C08K2201/014C09D5/185C09D167/00
Inventor 赵江平王亚超吴丹崔晓红李华陈敬龙韩煜久孟晓静钟兴润
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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