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A kind of phosphorus nitrogen zinc two-dimensional supramolecular coated molybdenum disulfide hybrid flame retardant and its application

A molybdenum disulfide and supramolecular technology is applied to the chemical characteristics of fibers, the manufacture of fire-resistant and flame-retardant filaments, and the production of single-component synthetic polymer rayon. It can solve the problems of large addition amount and low flame-retardant efficiency, and achieve reduction The effect of adding amount, improving flame retardant efficiency and good application prospect

Active Publication Date: 2020-03-06
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently reported methods add a large amount of molybdenum disulfide flame retardants, and the flame retardant efficiency is low. Therefore, it is very meaningful to develop a flame retardant with a small amount and high efficiency.

Method used

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  • A kind of phosphorus nitrogen zinc two-dimensional supramolecular coated molybdenum disulfide hybrid flame retardant and its application
  • A kind of phosphorus nitrogen zinc two-dimensional supramolecular coated molybdenum disulfide hybrid flame retardant and its application
  • A kind of phosphorus nitrogen zinc two-dimensional supramolecular coated molybdenum disulfide hybrid flame retardant and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of flame retardant: Dissolve 0.5g of melamine and 0.1g of zinc acetate in 200mL of deionized water, then add 0.1g of molybdenum disulfide nanosheets to the solution and ultrasonically disperse for 2 hours. Add 0.5g phytic acid and stir at 30°C for 4h. Finally, after centrifugal cleaning with deionized water and vacuum drying at 60° C., a phosphorus-nitrogen-zinc two-dimensional supramolecular-coated molybdenum disulfide hybrid material is obtained.

[0028] After SEM and TEM tests, respectively, as figure 1 and 2 As shown, the surface of the obtained hybrid material is rough, and there are massive loads on the surface of the molybdenum disulfide nanosheets, showing an obvious sandwich structure, and the surface sheet-like two-dimensional supramolecules are successfully coated with the molybdenum disulfide nanosheets.

[0029] Preparation of flame retardant polyacrylonitrile fiber: Weigh 0.06g of phosphorus nitrogen zinc two-dimensional supramolecular coate...

Embodiment 2

[0032] Preparation of flame retardant: Dissolve 0.8g of melamine and 0.15g of zinc acetate in 200mL of deionized water, then add 0.2g of molybdenum disulfide nanosheets to the solution and ultrasonically disperse for 2 hours. Add 1g of phytic acid and stir at 30°C for 4h. Finally, after centrifugal cleaning with deionized water and vacuum drying at 60° C., a phosphorus-nitrogen-zinc two-dimensional supramolecular-coated molybdenum disulfide hybrid material is obtained.

[0033] Preparation of flame-retardant polyacrylonitrile fibers: Referring to Example 1, flame-retardant polyacrylonitrile fibers were prepared. The specific performance parameters are shown in Table 1.

Embodiment 3

[0035] Preparation of flame retardant: Dissolve 0.5g of melamine and 0.1g of zinc acetate in 200mL of deionized water, then add 0.1g of molybdenum disulfide nanosheets to the solution and ultrasonically disperse for 2 hours. Add 0.5g phytic acid and stir at 60°C for 4h. Finally, after centrifugal cleaning with deionized water and vacuum drying at 60° C., a phosphorus-nitrogen-zinc two-dimensional supramolecular-coated molybdenum disulfide hybrid material is obtained.

[0036] Preparation of flame-retardant polyacrylonitrile fibers: Referring to Example 1, flame-retardant polyacrylonitrile fibers were prepared. The specific performance parameters are shown in Table 1.

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Abstract

The invention discloses a phosphorus, nitrogen and zinc two-dimensional supramolecular-coated molybdenum disulfide hybrid flame retardant and an application thereof, belonging to the technical field of halogen-free flame retardancy. The components of the phosphorus, nitrogen and zinc two-dimensional supramolecular-coated molybdenum disulfide hybrid material are proportioned according to parts by weight, including: 1 to 2 parts of molybdenum disulfide, 1 to 1.5 parts of zinc salt, and 5 to 8 parts of nitrogen-containing Compounds, 5-10 phosphorus-containing compounds. As a flame retardant, the hybrid material of the present invention effectively exerts the organic-inorganic synergistic flame retardant effect, improves the flame retardant efficiency of molybdenum disulfide, reduces the amount of flame retardant added to the matrix, and can improve the mechanical properties of the matrix at the same time. It has very good application prospect.

Description

technical field [0001] The invention specifically relates to a phosphorus-nitrogen-zinc two-dimensional supramolecular-coated molybdenum disulfide hybrid flame retardant and an application thereof, belonging to the technical field of halogen-free flame retardancy. Background technique [0002] In recent years, the application fields of various civil, decorative and industrial fibers have rapidly expanded and become an indispensable part of daily life and industrial production. However, most fibers are highly flammable and are easily ignited by external heat sources, and release a large amount of heat, smoke and toxic gases during the combustion process, which seriously endangers the safety of life and property. According to statistics, the average annual large and small fires in my country will Cause the loss of more than 500 million yuan to the society, and the serious fire that causes by the flammability of fiber product just accounts for more than half. The development of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K3/30D01F1/07D01F6/54
CPCC08K3/30D01F1/07C09K21/04C09K21/12C09K21/10C09K21/14D01F6/18C08K9/04C08K2003/3009D01F6/54
Inventor 付少海王冬彭虹云李敏张丽平田安丽刘明明
Owner JIANGNAN UNIV
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