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Ternary borate hydrotalcite flame retardant, preparation method and application thereof

A borate and hydrotalcite technology, applied in the directions of borates, chemical instruments and methods, boron compounds, etc., can solve the problems of complex process, high cost, and the effect of intercalation modification is not obvious, and achieves simple operation and operation. Simple and effective to improve overall performance

Active Publication Date: 2019-12-31
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In summary, the existing preparation methods of intercalated hydrotalcites (LDEs) are complicated in process, high in cost, and the effect of intercalation modification is not obvious. It is necessary to study a ternary borate hydrotalcite flame retardant and its The preparation method, and the application of the ternary borate hydrotalcite flame retardant in the technical field of plastic flame retardant material preparation

Method used

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  • Ternary borate hydrotalcite flame retardant, preparation method and application thereof
  • Ternary borate hydrotalcite flame retardant, preparation method and application thereof
  • Ternary borate hydrotalcite flame retardant, preparation method and application thereof

Examples

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Embodiment 1

[0042] A preparation method of a ternary borate hydrotalcite flame retardant, comprising the steps of:

[0043] (1) Mg(NO 3 ) 2 ·6H 2 O, Al(NO 3 ) 3 9H 2 O, Zn(NO 3 ) 2 ·6H 2 O three kinds of salts are dissolved in distilled water, obtain mixed salt solution after fully dissolving, described mixed salt solution is packed in the clean separatory funnel stand-by; Described distilled water is through the treatment of getting rid of carbon dioxide;

[0044] (2) H 3 BO 3 and NaOH were dissolved in distilled water to form an alkaline solution, and the alkaline solution was put into a clean separatory funnel for use; Mg 2+ 、Al 3+ , Zn 2+ 、H 3 BO 3 , NaOH molar ratio is 3:2:3:4:4;

[0045] (3) Put distilled water equal to the volume of the mixed salt solution in the container, heat it in a water bath environment at 75° C., pass nitrogen into the distilled water as a protective gas, and mix the mixed salt solution at 1 drop / s The dripping speed is dropped into the conta...

Embodiment 2

[0048] A preparation method of a ternary borate hydrotalcite flame retardant, comprising the steps of:

[0049] (1) MgCl 2 、Al 3 Cl, ZnCl 2 Three kinds of salts are dissolved in distilled water, and after fully dissolving, a mixed salt solution is obtained, and the mixed salt solution is put into a clean separatory funnel for use; the distilled water is treated to remove carbon dioxide;

[0050] (2) H 3 BO 3 and NaOH were dissolved in distilled water to form an alkaline solution, and the alkaline solution was put into a clean separatory funnel for use; Mg 2+ 、Al 3+ , Zn 2+ 、H 3 BO 3 , NaOH molar ratio is 5:3:5:6:6;

[0051] (3) Put distilled water equal to the volume of the mixed salt solution in the container, place it in a water bath environment at 80° C. The dripping speed of s is dripped in the container that distilled water is housed, and at the same time, the alkaline solution is dripped to keep the pH in the container at 9, and the alkaline solution is dripped...

Embodiment 3

[0054] A preparation method of a ternary borate hydrotalcite flame retardant, comprising the steps of:

[0055] (1) Mg(NO 3 ) 2 ·6H 2 O, Al(NO 3 ) 3 9H 2 O, Zn(NO 3 ) 2 ·6H 2 O three kinds of salts are dissolved in distilled water, obtain mixed salt solution after fully dissolving, described mixed salt solution is packed in the clean separatory funnel stand-by; Described distilled water is through the treatment of getting rid of carbon dioxide;

[0056] (2) H 3 BO 3 and NaOH were dissolved in distilled water to form an alkaline solution, and the alkaline solution was put into a clean separatory funnel for use; Mg 2+ 、Al 3+ , Zn 2+ 、H 3 BO 3 , NaOH molar ratio is 4:2.5:4:5:5;

[0057] (3) Put distilled water equal to the volume of the mixed salt solution in the container, heat it in a water bath environment at 76° C., and pass helium into the distilled water as a protective gas. The dripping speed of s is dripped in the container that distilled water is housed, ...

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Abstract

Belonging to the technical field of plastic flame retardant material preparation, the invention discloses a ternary borate hydrotalcite flame retardant, a preparation method and application thereof. Specifically, the three salts Mg<2+>, Al<3+> and Zn<2+> are adopted as the lamellar main body, in the interlayer of nitrate radicals employing anions, a double-drop coprecipitation method is adopted toreplace nitrate ions with borate ions, thus obtaining the ternary borate hydrotalcite flame retardant, i.e. MgAlZn-BO3-LDHs. According to the preparation method and application method of the flame retardant provided by the invention, the obtained flame retardant is uniform in structure, has mild operation conditions, is energy saving and environment-friendly, and has great development prospects in the aspect of material preparation. The obtained ternary borate hydrotalcite flame retardant has good flame retardant effect, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of preparation of plastic flame retardant materials, in particular to a ternary borate hydrotalcite flame retardant and its preparation method and application. Background technique [0002] Polypropylene is a widely used engineering plastic, and its quality is also very good. Although PP has various excellent properties, it also has the same feature as other polymer materials, which is its flammability. Its application in production and life is subject to many restrictions. When PP is ignited, the burning speed during the combustion process is very fast, and there will be obvious dripping phenomenon. The flame-bearing dripping produced by the combustion is easy to drip and wrap on the surface of the object, causing the lower layer of the object to be ignited by the afterflame. Combustible and cause serious corrosion and other disasters to objects. This is a particularly serious hidden danger in terms of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B35/12C01G9/00C08K3/38C08L23/12
CPCC01B35/128C01G9/006C01P2002/22C08K3/38C08K2003/387C08L2201/02C08L23/12
Inventor 童张法刘玮王涛韦藤幼戴新许严严宋叶叶
Owner GUANGXI UNIV
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