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Phosphorus-nitrogen-zinc two-dimensional supermolecule-coated molybdenum disulfide hybridized flame retardant and application thereof

A molybdenum disulfide, supramolecular technology, applied in the chemical characteristics of fibers, the manufacture of fire-retardant and flame-retardant filaments, and the single-component synthetic polymer rayon, etc. The effect of flame retardant efficiency, reducing the amount of addition, and good application prospects

Active Publication Date: 2019-06-28
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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  • Phosphorus-nitrogen-zinc two-dimensional supermolecule-coated molybdenum disulfide hybridized flame retardant and application thereof
  • Phosphorus-nitrogen-zinc two-dimensional supermolecule-coated molybdenum disulfide hybridized flame retardant and application thereof
  • Phosphorus-nitrogen-zinc two-dimensional supermolecule-coated molybdenum disulfide hybridized flame retardant and application thereof

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 2h, and then slowly drop into the above dispersion after the tape is evenly dispersed Add 0.5g phytic acid and stir at 30°C for 4h. Finally, centrifugal cleaning with deionized water and vacuum drying at 60°C are used to obtain a phosphorus, nitrogen, zinc, and zinc two-dimensional supramolecular coated MoS2 hybrid material.

[0028] After SEM and TEM test, respectively, as figure 1 with 2 It is shown that the surface of the obtained hybrid material is rough, the surface of the molybdenum disulfide nanosheets has a block-like load, which is an obvious sandwich structure, and the surface sheet-like two-dimensional supramolecules successfully coat the molybdenum disulfide nanosheets.

[0029] Preparation of flame-retardant polyacrylonitrile fiber: Weigh out 0.06g of the t...

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 2h, then slowly drop into the above dispersion after the tape is evenly dispersed Add 1g of phytic acid and stir at 30°C for 4h. Finally, centrifugal cleaning with deionized water and vacuum drying at 60°C are used to obtain a phosphorus, nitrogen, zinc, and zinc two-dimensional supramolecular coated MoS2 hybrid material.

[0033] Preparation of flame-retardant polyacrylonitrile fiber: referring to Example 1, a flame-retardant polyacrylonitrile fiber was 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 2h, and then slowly drop into the above dispersion after the tape is evenly dispersed Add 0.5g phytic acid and stir at 60°C for 4h. Finally, centrifugal cleaning with deionized water and vacuum drying at 60°C are used to obtain a phosphorus, nitrogen, zinc, and zinc two-dimensional supramolecular coated MoS2 hybrid material.

[0036] Preparation of flame-retardant polyacrylonitrile fiber: referring to Example 1, a flame-retardant polyacrylonitrile fiber was prepared. The specific performance parameters are shown in Table 1.

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Abstract

The invention discloses a phosphorus-nitrogen-zinc two-dimensional supermolecule-coated molybdenum disulfide hybridized flame retardant and application thereof, belonging to the technical field of halogen-free flame retarding. The phosphorus-nitrogen-zinc two-dimensional supermolecule-coated molybdenum disulfide hybridized flame retardant contains the following components in parts by weight: 1-2 parts of molybdenum disulfide, 1-1.5 parts of zinc salt, 5-8 parts of a nitrogen-containing compound and 5-10 parts of a phosphorous-containing compound. By utilizing a hybridized material as a flame retardant, the organic and inorganic synergistic flame retardant effect is effectively realized, the flame-retardant efficiency of molybdenum disulfide is improved, the addition amount of the flame retardant in a matrix is reduced, and meanwhile, the mechanical properties of the matrix can be improved, so that the hybridized flame retardant has very good application prospects.

Description

Technical field [0001] The invention specifically relates to a phosphorus-nitrogen-zinc two-dimensional supramolecular coated molybdenum disulfide hybrid flame retardant and its application, and belongs to the technical field of halogen-free flame retardant. Background technique [0002] In recent years, the application fields of various civil, decorative and industrial fibers have expanded rapidly and have become an indispensable part of daily life and industrial production. However, most fibers are highly flammable, easily ignited by external heat sources, and release a large amount of heat, smoke and toxic gases during the combustion process, which seriously endanger the safety of life and property. According to statistics, my country’s average annual fires will be Caused more than 500 million yuan of losses to the society, and serious fires caused by the flammability of fiber products accounted for more than half. The development of high-performance, low-consumption flame ret...

Claims

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Application Information

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IPC IPC(8): C08K9/10C08K3/30D01F1/07D01F6/54
CPCC08K3/30C08K9/04C08K2003/3009C09K21/04C09K21/10C09K21/12C09K21/14D01F1/07D01F6/18D01F6/54
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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