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Nano zirconium phosphate-modified triazine macromolecular charring agent, and preparation method and application thereof

A nano-zirconium phosphate and macromolecular technology is applied in the field of nano-zirconium phosphate-modified triazine macromolecular carbon-forming agent and its preparation, which can solve the problems of difficult dispersion of nano-materials, difficulty in obtaining composite materials, etc., and achieve excellent compactness and thermal stability. The effect of high performance, high yield and excellent carbon-forming properties

Active Publication Date: 2015-11-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dispersion of nanomaterials in polymers has always been a problem, especially in the case of low additions, and it is difficult to obtain uniform composites

Method used

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  • Nano zirconium phosphate-modified triazine macromolecular charring agent, and preparation method and application thereof
  • Nano zirconium phosphate-modified triazine macromolecular charring agent, and preparation method and application thereof
  • Nano zirconium phosphate-modified triazine macromolecular charring agent, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1) Silane coupling agent intercalation nano-zirconium phosphate: Add 450mL acetone and 5g (0.018mol) zirconium phosphate (diameter of the sheet is about 100nm) into a 1L four-necked flask at 0-5°C, and stir ultrasonically for 30min; Dissolve 11.95g (0.054mol) of 3‐aminopropyltriethoxysilane in 50mL of acetone, add it dropwise to the flask within 0.5h, continue ultrasonic stirring for 1.5h, then stop ultrasonic and continue stirring for 6h; The mixed solution was concentrated to 200 mL by rotary evaporation for the next reaction.

[0047] 2) Synthesis of intermediate products: at 0-5°C, add 100mL of acetone and 10.14g (0.055mol) of cyanuric chloride into a 500mL four-necked flask, and stir evenly; Add it dropwise in the four-necked flask, and slowly add an aqueous sodium hydroxide solution with a concentration of 20wt% at the same time, and react for 3 hours after the drop; the temperature is raised to 55°C, and 1.66g (0.028mol) of 1,2‐ethylenediamine Dissolve 2.2g (0.0...

Embodiment 2

[0053] The difference between this example and Example 1 is that the amount of zirconium phosphate in step 1) is changed to 7.65 g (0.027 mol), and the amount of acetone is changed to 700 mL. The flame retardant performance test and thermogravimetric analysis results are shown in Table 1.

Embodiment 3

[0055] The difference between this example and Example 1 is that the amount of zirconium phosphate in step 1) is changed to 3.82 g (0.014 mol), and the amount of acetone is changed to 350 mL. The flame retardant performance test and thermogravimetric analysis results are shown in Table 1.

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Abstract

The invention discloses a nano zirconium phosphate-modified triazine macromolecular charring agent, and a preparation method and application thereof. The preparation method comprises the following steps: using a silane coupling agent to modify nano zirconium phosphate in an intercalation manner, and preparing an intermediate product through an organic solvent, cyanuric chloride, the silane coupling agent-modified nano zirconium phosphate through intercalation, a diamine monomer and an acid-binding agent; performing in-situ polymerization reaction on the organic solvent, the intermediate product, the diamine monomer and the acid-binding agent to prepare the nano zirconium phosphate-modified triazine macromolecular charring agent. Compared with the prior art, the macromolecular charring agent prepared by the invention is excellent in thermal stability and charring property, has a good synergistic flame-retardant effect with ammonium polyphosphate, and can effectively improve the thermal stability and the compactness of an expandable carbon layer under the high temperature condition, so that the flame-retardant efficiency of an intumescent flame retardant is remarkably improved. A prepared flame-retardant polypropylene material can be widely used in fields of automotive exteriors, furniture, appliances, wires, cables, construction materials and the like.

Description

technical field [0001] The invention relates to the field of preparation and application of halogen-free flame retardants, in particular to a nanometer zirconium phosphate-modified triazine macromolecule char-forming agent and its preparation method and application. Background technique [0002] Intumescent flame retardants (IFR) are considered to be one of the most promising green flame retardants in the field of polymer flame retardants because of their advantages such as halogen-free environmental protection, low smoke and low toxicity, and droplet suppression. It mainly forms an intumescent barrier carbon layer on the surface of the polymer through the interaction between the three components of carbon source, acid source and gas source to play a flame retardant role. Therefore, the quality of the intumescent carbon layer is the most critical factor affecting the flame retardant efficiency of IFR. one of the factors. However, the char layer formed by the existing IFR sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06C08K9/06C08K3/32C08L23/12C08L79/04
Inventor 赖学军谢华理曾幸荣李红强刘晓奇
Owner SOUTH CHINA UNIV OF TECH
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