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a flame retardant rubber

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

Active Publication Date: 2016-10-26
SHENYANG RUBBER PLANT NO 4 LIAONING PROV
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  • Summary
  • 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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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; 4 parts of ...

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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 present invention relates to a kind of rubber, especially relates to a kind of flame-retardant rubber. Background technique [0002] Due to its excellent physical and mechanical properties, rubber is widely used in industries such as automobiles, aerospace, oil exploration, petrochemicals, wire and cable, and tire treads. However, its inherent high flammability still imposes some application limitations on NR. Therefore, the importance of improving the flame retardant properties of rubber is obvious. [0003] Intumescent flame retardant IFR is composed of ammonium polyphosphate, pentaerythritol, and melamine, and has the advantages of low smoke and low toxicity. In some materials, it has more excellent flame retardant performance than other flame retardants. However, compared with traditional flame retardants, there are many limitations of their own, such as too much added amount, unstable char formation, etc., which lead to the decline of flame...

Claims

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Application Information

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Patent Type & Authority Patents(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