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Two-dimensional nano-filler synergistic flame retardant as well as preparation method and application thereof

A synergistic flame retardant and two-dimensional nanotechnology, applied in the field of polymer flame retardants, can solve the problems of polymer mechanics, aging and other performance degradation, poor compatibility with polymer matrix, uneven dispersion, etc., and achieve raw materials The ratio is scientific and reasonable, the dispersion is good, and the preparation process is simple.

Active Publication Date: 2018-06-22
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional flame retardants include halogen-based flame retardants, phosphorus-based flame retardants, intumescent flame retardants, silicon-based flame retardants and inorganic flame retardants, but since most flame retardants are polar, resulting in It has poor compatibility with the polymer matrix, and problems such as uneven dispersion and surface migration will occur during use; moreover, if most flame retardants want to exert an effective flame retardant effect, the filling amount is often large, resulting in polymerization The mechanical and aging properties of the material are seriously degraded

Method used

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  • Two-dimensional nano-filler synergistic flame retardant as well as preparation method and application thereof
  • Two-dimensional nano-filler synergistic flame retardant as well as preparation method and application thereof
  • Two-dimensional nano-filler synergistic flame retardant as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The composition of the two-dimensional nano-filler synergistic flame retardant described in this example is 100 parts by mass of ammonium polyphosphate (intumescent flame retardant, Shandong Changsheng, CS FR APP 232), graphene oxide (1-5 layers, Pioneer Nanometer, XF224) 10 mass parts, tannic acid (hydrolyzed tannin, Chinese medicine) 20 mass parts, ferric chloride (Chinese medicine) 10 mass parts, this synergistic flame retardant adopts following steps to prepare:

[0025] (1) Disperse 100 parts by mass of ammonium polyphosphate in an alkaline aqueous solution of pH=10, add 10 parts by mass of tannic acid and 2.5 parts by mass of ferric chloride, stir and react for 10 minutes, wash with water until neutral, and obtain coated ammonium polyphosphate, figure 1 For the color comparison of ammonium polyphosphate before and after coating, the color of ammonium polyphosphate after coating changes from white to dark brown, which visually proves that the coating reaction is su...

Embodiment 2

[0032] The composition of the two-dimensional nano-filler synergistic flame retardant described in this embodiment is 100 parts by mass of red phosphorus (inorganic flame retardant, Chuanlin Chemical Industry), 100 parts by mass of organoclay (1-10 layers, NANOCOR, I.31PS) 100 parts by mass of tea tannin (condensed tannin, Fengtai Biology), 50 parts by mass of cobalt sulfate (Aladdin), the synergistic flame retardant is prepared in the following steps:

[0033] (1) Disperse 100 parts by mass of red phosphorus in an alkaline aqueous solution of pH=8, add 50 parts by mass of tea tannin and 12.5 parts by mass of cobalt sulfate, stir and react for 30 minutes, wash with water until neutral, and obtain the coated red phosphorus;

[0034] (2) Disperse 100 parts by mass of organoclay in an aqueous solution of 50 parts by mass of tea tannins, add 12.5 parts by mass of cobalt sulfate, adjust the pH to 8, stir for 30 minutes, wash with water until neutral, and obtain the coated organic ...

Embodiment 3

[0040] The composition of the two-dimensional nano-filler synergistic flame retardant described in this example is 100 parts by mass of decabromodiphenyl ether (halogenated flame retardant, Zhengzhou Zhiyi), black phosphorus nanosheets (1-10 layers, Pioneer Nano, XF207) 2 mass parts, Quercus angustifolia tannin (complex polyphenols, Qingdao Tailian) 5 mass parts, zirconium chloride (Aladdin) 1 mass part, the synergistic flame retardant is prepared by the following steps:

[0041] (1) Disperse 100 parts by mass of decabromodiphenyl ether in an alkaline aqueous solution of pH = 12, add 2.5 parts by mass of Quercus angustifolia tannin and 0.25 parts by mass of zirconium chloride, stir and react for 1 min, wash with water until medium properties, to obtain coated decabromodiphenyl ether;

[0042] (2) Disperse 2 parts by mass of black phosphorus nanosheets in an aqueous solution of 2.5 parts by mass of Quercus angustifolia tannins, add 0.25 parts by mass of zirconium chloride, adju...

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Abstract

The invention belongs to the technical field of polymer flame retardants and in particular relates to a two-dimensional nano-filler synergistic flame retardant as well as a preparation method and application thereof. The synergistic flame retardant is prepared from the following components in parts by mass: 100 parts of flame retardant, 2 to 500 parts of two-dimensional nano-filler, 5 to 500 partsof plant polyphenol and 1 to 100 parts of polyvalent metal salt. The preparation method of the synergistic flame retardant comprises the following steps: firstly, carrying out multi-coordination complexing reaction on the plant polyphenol and polyvalent metal ions to clad the flame retardant and the two-dimensional nano-filler respectively; then, loading the flame retardant to the surface of thetwo-dimensional nano-filler by utilizing the complexing reaction. According to the two-dimensional nano-filler synergistic flame retardant, the raw materials have a scientific and reasonable ratio anda preparation technology is simple, the raw materials are convenient to operate and low in cost; the prepared synergistic flame retardant has good dispersity and high flame-retarding efficiency; thesynergistic flame retardant is added into a polymer matrix through a solution blending, emulsion blending or melt-blending method; a high-performance flame-retarding polymer composite material with excellent flame-retarding performance, mechanical performance and the like can be prepared and is widely applied.

Description

Technical field: [0001] The invention belongs to the technical field of polymer flame retardants, and in particular relates to a two-dimensional nano-filler synergistic flame retardant and its preparation method and application. Background technique: [0002] The flammability of polymers has brought serious safety hazards to human production and life. Therefore, the development of flame-retardant polymer materials has important practical significance and urgency. The flame retardancy mechanism of polymers includes gas phase flame retardancy, condensed phase flame retardancy and synergistic flame retardancy. The gas phase flame retardancy mechanism is mainly by capturing the free radicals required for the chain branching reaction of combustion or generating non-flammable gases to dilute combustible gases The most important mechanism of condensed phase flame retardant is the mechanism of charring flame retardant, that is, the exchange of heat and substances between the gas pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K9/10C08K3/32C08K3/02C08K3/34C08K3/04C08K7/00C08K13/06C08K5/06C08K5/521C08K3/38C08K5/136C08K3/30C08K3/40C08L7/02C08L25/06C08L23/06C08L63/00C08L9/08
CPCC08K3/02C08K3/04C08K3/30C08K3/32C08K3/346C08K3/38C08K3/40C08K5/06C08K5/136C08K5/521C08K7/00C08K9/10C08K9/12C08K13/06C08L7/02C08L2201/02C08K2003/026C08K2003/3009C08K2003/323C08K2003/385C08L2207/066C08L91/06C08L25/06C08L23/06C08L63/00C08L9/08
Inventor 李琳赵帅孙佩佩赵正
Owner QINGDAO UNIV OF SCI & TECH
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