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A novel compound and an application thereof as a flame retardant

A compound, magnesium hydroxide technology, applied in the field of new compounds, can solve problems such as a large amount of smoke, poor flame retardant effect, human health and environmental hazards, and achieve good mechanical properties and good smoke suppression effects

Active Publication Date: 2017-07-04
石家庄市友道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although phosphorus-based flame retardants have good flame-retardant effects, polymer materials using such flame retardants will produce a lot of smoke when burned, and will also cause harm to human health and the environment.
Aluminum-magnesium flame retardants have the characteristics of good smoke suppression, good thermal stability, non-volatility, no corrosive and toxic gases, etc., but the flame retardant effect is poor

Method used

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  • A novel compound and an application thereof as a flame retardant
  • A novel compound and an application thereof as a flame retardant
  • A novel compound and an application thereof as a flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The preparation of embodiment 1 new compound

[0054] Add successively the PDD of 14.85g (0.05mol), the magnesium hydroxide of 5.83g (0.1mol) and the anhydrous aluminum chloride of 0.300g in the there-necked flask, then add 59.40g of anhydrous acetonitrile, gradually water-bath heating to After 24 hours of constant temperature reaction at 85°C, the reaction solution was cooled to room temperature, filtered with suction, and the filter cake was washed twice with an appropriate amount of acetonitrile, then washed twice with acetone, and then the filtered product was dried at 60°C for two hours to obtain a white Solid 12.61 g, yield 74.2%.

[0055] During the reaction, use 1 L of sodium hydroxide solution with a concentration of 0.5 mol / L to collect the gas generated, and through titration analysis, it was found that the concentration of the sodium hydroxide solution after the reaction ended became 0.4 mol / L, and finally determined that the reaction produced 0.1 mol of hy...

Embodiment 2

[0057] The structural analysis of embodiment 2 new compounds

[0058] The inventor carried out infrared spectrum detection on the compound prepared according to the method described in Example 1, and the obtained spectrum is as attached figure 1 shown.

[0059] The inventor has carried out infrared spectrum detection respectively to two kinds of raw materials pentaerythritol diphosphate dichloride (PDD) and magnesium hydroxide used for synthesizing the compound described in the present invention, and the results are as attached figure 2 , attached image 3 shown.

[0060] After comparative analysis of the above-mentioned infrared spectrograms, the inventor believes that the infrared spectrum of the new compound is at 1465cm -1 、1230cm -1 、1126cm -1 、1022cm-1 、848cm -1 The same as the infrared spectrum absorption peak of PDD, indicating that the main structure of the bicyclic ring of PDD has not changed; the infrared spectrum of the new compound is at 3336cm -1 There i...

Embodiment 3

[0063] The application of embodiment 3 new compounds

[0064] The new compound prepared according to the method described in Example 1 is used for the flame retardancy of PE. When the dosage is 25% and the PE dosage is 75%, the oxygen index of PE reaches 28%, which meets the flame retardancy requirements of flame retardant materials. , and the amount of smoke is very small, and the material also has relatively good mechanical properties.

[0065] When using a halogenated flame retardant such as hexabromocyclododecane or hexabromobenzene, it must be used together with antimony trioxide, and the total amount of the two added is not less than 30%, so that the oxygen index of PE can reach 28%, but the material will release a lot of toxic and harmful smoke during the combustion process.

[0066] When phosphorus-based flame retardants such as coated red phosphorus are used, they must be used together with flame retardants such as magnesium hydroxide or aluminum hydroxide, and the t...

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Abstract

A novel compound and an application thereof as a flame retardant are disclosed. An infrared spectrum of the compound has characteristic absorption peaks at 3336 cm<-1>, 1640 cm<-1>, 1465 cm<-1>, 1230 cm<-1>, 1126 cm<-1>, 1022 cm<-1> and 848 cm<-1>. The compound is prepared by adopting pentaerythritol diphosphate dichloride and magnesium hydroxide as raw materials, adopting anhydrous acetonitrile as a solvent and adopting anhydrous aluminum trichloride as a catalyst. The compound can be used as a flame retardant of a polymer material, the using amount of the compound is low, the polymer material to which the compound is added is low in smoke generating amount and good in mechanical performance, and the compound is superior to flame retardants at present.

Description

technical field [0001] The invention relates to a new compound, and also provides a preparation method of the compound and an application of the compound as a flame retardant in polymer materials. Background technique [0002] With the wide application of synthetic polymer materials in modern life and various industries, people pay more and more attention to the fire hazard of polymer materials, and the requirements for the flame retardancy of polymer materials are also getting higher and higher. [0003] The improvement of flame retardant properties of polymer materials is often achieved by adding flame retardants. Commonly used flame retardants mainly include halogenated flame retardants such as chlorinated paraffin, hexabromocyclododecane, phosphorus-based flame retardants such as triphosphate Cresyl ester, red phosphorus, aluminum-magnesium flame retardants such as aluminum hydroxide, magnesium hydroxide. The use of flame retardants has played a major role in reducing t...

Claims

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Application Information

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IPC IPC(8): C07F9/6574C08K5/521C08L23/06
CPCC07F9/65744C08K5/521C08L2201/02C08L23/06
Inventor 崔文广高岩磊次立杰任蕾雷霓
Owner 石家庄市友道科技有限公司
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