Flame-retardant rubber

A flame retardant rubber and rubber technology, applied in the field of flame retardant rubber, can solve problems such as easy agglomeration, and achieve the effects of improving mechanical properties, increasing carbon formation rate, and reducing heat

Active Publication Date: 2015-09-16
SHENYANG RUBBER PLANT NO 4 LIAONING PROV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong interaction between graphene sheets, it is easy to agglomerate when preparing polymer nanocomposites.

Method used

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Examples

Experimental program
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Embodiment

[0021] Ultrasonic disperse 1g of graphene oxide in 300ml of aqueous solution, add 600mg of sodium borohydride, prepare 5% sodium carbonate solution to adjust the pH of the graphene aqueous solution to a pH of 9-10, and stand at 80°C for 1 hour. The product was obtained by centrifugation. Centrifuge the product into 100ml of aqueous solution, adjust the pH to 5-6 with 1mol / L hydrochloric acid solution, add 18mg of sodium nitrite and 46mg of benzoic acid, stir for 2 hours in an ice-water bath, and centrifuge to obtain functionalized graphene. .

[0022] 0.5 g of functionalized graphene was ultrasonically dispersed in 100 ml of aqueous solution, and AL-MOFs metal-organic framework was added at room temperature and stirred for 4 hours at room temperature to prepare a metal-organic framework grafted functionalized graphene synergistic flame retardant.

[0023] 100 parts of natural rubber; 1.2 parts of sulfur; 0.8 parts of accelerator CZ; 0.35 parts of accelerator TMTD;...

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PUM

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Abstract

The invention relates to a flame-retardant rubber preparation method, wherein the flame-retardant rubber is prepared by mixing the following components by mass fraction: 100 parts of natural rubber, 1.2-1.5 parts of a vulcanizing agent, 0.8-1.0 part of an accelerator CZ, 0.2-0.4 part of an accelerator CZ TMTD, 3.5-4.5 parts of stearic acid, 4.5-5 parts of zinc oxide, 1-2 parts of an an-aging agent 4010, 1-3 parts of liquid paraffin, 30-40 parts of carbon black, 1-5 parts of a flame-retardant synergist, 35-40 parts of ammonium polyphosphate, 10-20 parts of pentaerythrotol, and 10-20 parts of melamine, wherein the flame-retardant synergist is metal organic framework graft functionalized graphene, wherein graphene is functionalized with Benzoic Acid so as to achieve double coordination compounding of the graphene and the metal organic framework. With the flame-retardant rubber of the present invention, the flame-retardant performance of the rubber matrix is significantly improved.

Description

Technical field [0001] The invention involves a rubber, especially a flame retardant rubber. Background technique [0002] Because of its excellent physical and mechanical properties, rubber is widely used in industries such as automotive, aerospace, petroleum mining, petrochemical, wire and cable, tire tires, and other industries.However, its inherent high combustibleness still has some application restrictions on NR.Therefore, the importance of improving rubber flame retardant performance is obvious. [0003] The expansion flame retardant IFR is composed of ammonium phosphate, tetraol, and melamine, which has the advantages of low smoke volume and low toxicity.There are better flame retardant performances than other flame retardants in some materials.However, compared with traditional flame retardants, there are many limitations of themselves. The amount of self -added is too large, and the unstable of charcoal is unstable, which causes the decline in the flame retardant perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L91/06C08K13/06C08K9/04C08K9/02C08K5/09C08K3/22C08K3/04C08K3/32C08K5/3492C08K5/053
CPCC08L7/00C08L2201/02C08L2201/08C08L91/06C08K13/06C08K9/04C08K3/04C08K5/09C08K2003/2296C08K5/34922C08K5/053
Inventor 王娜胡立冬亢萍
Owner SHENYANG RUBBER PLANT NO 4 LIAONING PROV
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