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Preparation method of environment-friendly flame retardant flame-retardant rubber

A technology of flame retardant rubber and intumescent flame retardant, which is applied in the field of preparation of flame retardants. It can solve the problems of poor dispersibility, large addition amount, and poor thermal stability of the charcoal layer, so as to improve poor dispersibility and enhance charcoal forming ability. , Improve the effect of grafting efficiency

Active Publication Date: 2015-09-02
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, in order to achieve the ideal flame retardant effect, a large amount of addition is usually required, which will cause a substantial decrease in the mechanical properties of the material
In addition, the intumescent flame retardant is easy to agglomerate in the rubber matrix, has poor dispersibility and poor compatibility with the rubber matrix, and the thermal stability of the formed carbon layer is poor
This will greatly affect the flame retardant performance of the material

Method used

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  • Preparation method of environment-friendly flame retardant flame-retardant rubber

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Embodiment

[0021] Add 40 g of phosphoric acid and 7 g of tea saponin into the reaction vessel in batches, and stir under reflux in a water bath at 50° C. for 4 hours. Vacuum filtration at 50°C to extract the water generated during the reaction. The obtained product, 10 g of melamine and 100 ml of absolute ethanol solution were stirred at room temperature for 3 hours. The tea saponin-based "trinity" intumescent flame retardant was prepared by reaction.

[0022] Ultrasonic disperse 0.16g graphene in 150ml distilled water, prepare 10mmol / 5mmol EDC / NHS aqueous solution and add it to the dispersed graphene, stir at room temperature for 0.5 hours, add tea saponin-based "Trinity" intumescent flame retardant and stir at room temperature After 4 hours, the tea saponin-based "trinity" intumescent flame retardant functionalized graphene was prepared.

[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 stearic acid;...

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Abstract

The invention discloses a preparation method of an environment-friendly flame retardant flame-retardant rubber and relates to a preparation method of flame-retardant rubber. A tea saponin-based trine intumescent flame retardant is prepared by using tea saponin, phosphoric acid and melamine through phosphatization and hydrogen bonding in a certain proportion and reaction with carbodiimide (EDC) / N-hydroxysuccinimide (HNS) is carried out to be grafted with graphene; the prepared tea saponin-based trine intumescent flame retardant functionalized graphene is ground by a ball mill to prepare a flame-retardant rubber composite product. The environment-friendly flame retardant disclosed by the invention can be used for effectively improving the problems that the flame retardant is poor in dispersibility, weak in surface transfer ability, poor in compatibility, non-ideal in flame retardant property and the like in a natural rubber base body. In addition, the trine intumescent flame retardant grafted with graphene can play a role of synergistic flame retardance and catalyzing carbonization in rubber, so that the flame retardant property and the carbon bed stability of the composite rubber are further improved.

Description

technical field [0001] The invention relates to a preparation method of a flame retardant, in particular to a preparation method of an environment-friendly flame retardant flame-retardant rubber. Background technique [0002] Rubber has a series of excellent physical and chemical properties, especially its excellent resilience, insulation, water resistance and plasticity, and, after proper treatment, it also has oil resistance, acid resistance, alkali resistance, heat resistance, cold resistance, and heat resistance. Therefore, rubber is widely used in daily life and production. However, most rubber products are combustible and flammable, and it is increasingly difficult to meet the requirements for their flame retardancy in production and life, which is a major defect in the application of rubber and its products. Improving the flame retardancy of rubber has become a hot spot in current research. [0003] Intumescent flame retardants are a type of environmentally friendly...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08K5/521C08K5/3492C08K3/04C08L7/00C08K13/06
Inventor 王娜徐刚张静
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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