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Carbon nanotube bridged phenylphosphonic acid rare earth salt compound decabromodiphenylethane flame retardant polyethylene and preparation method thereof

A technology of decabromodiphenylethane and flame-retardant polyethylene, which is applied in the field of carbon nanotube bridged phenylphosphonic acid rare earth salt compounded decabromodiphenylethane flame-retardant polyethylene and its preparation, can solve the problem of deteriorating polymerization In order to achieve the effect of simple and easy processing method, improved flame retardant performance and good flame retardant effect

Active Publication Date: 2015-12-02
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon nanotubes can significantly reduce the heat release rate of polymers, but in many cases carbon nanotubes will actually worsen the performance of polymers in traditional flame resistance tests (such as UL-94)

Method used

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  • Carbon nanotube bridged phenylphosphonic acid rare earth salt compound decabromodiphenylethane flame retardant polyethylene and preparation method thereof
  • Carbon nanotube bridged phenylphosphonic acid rare earth salt compound decabromodiphenylethane flame retardant polyethylene and preparation method thereof
  • Carbon nanotube bridged phenylphosphonic acid rare earth salt compound decabromodiphenylethane flame retardant polyethylene and preparation method thereof

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Experimental program
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Embodiment

[0033] Embodiment formula is as follows:

[0034] In this example, the carbon nanotube-bridged phenylphosphonic acid cerium hybrid (Ce-MWNTs) was used for the test, and the hybrid preparation method used the above-mentioned preparation method of the carbon nanotube-bridged phenylphosphonic acid rare earth salt hybrid, specifically: :

[0035] (1) Disperse 2 mmol of phenylphosphonic acid and 0.5 g of aminated multi-walled carbon nanotubes in 50 ml of water, put the suspension into an ultrasonic instrument, and ultrasonicate at 60°C for 0.5 h with a power greater than or equal to 250 W;

[0036] (2) Dissolve 1 mmol of cerium nitrate in 50 ml of water, slowly add this solution dropwise to the solution obtained in step (1), and continue to sonicate at 60°C for 0.5 h.

[0037] (3) The resulting suspension was transferred to a hydrothermal reaction kettle, and then the reaction kettle was placed in an oven at 100°C for 24 hours, and the hydrothermal reaction stopped.

[0038] (4) ...

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Abstract

The invention discloses a kind of CNT(carbon nano tube)-bridged rare-earth phenylphosphonate compounded decabromodiphenylethane flame-retardant polyethylene and a preparation method thereof. The CNT-bridged rare-earth phenylphosphonate compounded decabromodiphenylethane flame-retardant polyethylene is characterized by being prepared from the following components in parts by weight: 60-100 parts of polyethylene, 5-15 parts of a bromine-series flame retardant, and 1-5 parts of CNT-bridged rare-earth phenylphosphonate. A CNT-bridged rare-earth phenylphosphonate hybrid prepared according to the invention simultaneously has lamellar and tubular structures, a CNT achieves an effect of connecting a rare-earth phenylphosphonate lamella, and the CNT and the rare-earth phenylphosphonate lamella are dispersed relatively uniformly and have no obvious clustering phenomenon; the flame retardant property of the material can be obviously improved just through adding a small amount of a bridging hybrid, and a complete and compact carbon layer is formed so as to inhibit a melt dripping phenomenon of polyethylene; the hybrid simultaneously has lamellar and tubular structures, and has a good flame retardant effect on polyethylene after being compounded with the bromine-series flame retardant.

Description

technical field [0001] The invention relates to the technical process of synthesis modification, preparation of polymer composite materials or batching, relates to organic-inorganic hybrid composite flame retardant polyethylene and its preparation, specifically carbon nanotube bridged phenyl phosphonic acid rare earth salt compound ten Brominated diphenylethane flame-retardant polyethylene and its preparation method. technical background [0002] Polyethylene has excellent mechanical properties, chemical resistance and easy processing, and is extremely versatile. However, the flammability of polyethylene greatly limits its application in some aspects. Brominated flame retardants are widely used in polyethylene due to their good gas phase flame retardant effect. [0003] Carbon nanotubes have properties such as high aspect ratio, large specific surface area, and affinity to polymers after polar treatment. The introduction of carbon nanotubes into materials will greatly impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K9/04C08K9/02C08K7/00C08K3/04C08K5/03C08K3/22
CPCC08K3/2279C08K5/03C08K7/24C08K9/02C08K9/04C08L2201/02C08L2207/062C08L23/06
Inventor 冉诗雅郭正虹方征平赵黎
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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