Flame-retardant brominated butyl rubber material and preparation method thereof

Abstract

The invention discloses a flame-retardant brominated butyl rubber material, relating to the technical field of rubber materials. The flame-retardant brominated butyl rubber material comprises the following chemical components: 85-95 parts of brominated butyl rubber, 8-12 parts of chlorinated polyethylene, 1-4 parts of stearic acid, 2-5 parts of zinc chloride, 1-2 parts of magnesium chloride, 1-3 parts of anti-aging agent, 1-3 parts of paraffin, 68-80 parts of flame retardant HT, 25-35 parts of complexed antimony, 1-3 parts of sulfur and 1-4 parts of accelerator. The invention also discloses a preparation method of the flame-retardant brominated butyl rubber material, which comprises the following steps: compounding the rubber matrix, mixing, batching off, stopping, and vulcanizing. The rubber material prepared by the method has the advantages of favorable flame retardancy, fire retardancy, high strength, excellent mechanical properties and favorable wear resistance, and can adapt to long-time friction without being damaged. By adding the environment-friendly flame retardant in the mixing process, the flame retardancy is further enhanced. The preparation technique is simple and easy to master.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a flame-retardant brominated butyl rubber material, and also to a preparation method of the flame-retardant brominated butyl rubber material. Background technique [0002] Due to the light weight, water resistance, moisture resistance, excellent electrical insulation properties and excellent molding processability of polymer materials such as rubber, they are widely used in aviation, transportation, construction and household appliance industries. However, because most of the polymer materials are hydrocarbons, they are flammable, and fires are often caused by overheating and short circuits. Therefore influenced to a certain extent the further popularization of macromolecular materials such as rubber in the electrical industry. Therefore, solving the flame retardant problem of polymer materials such as rubber has become an important issue in the development of the curre...

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Problems solved by technology

Among the numerous flame retardant products, brominated flame retardants rank first among all kinds of flame retardants in terms of market size and application fields for a long time, and its excellent cost performance is unmatched by other flame retardants. The application number is CN201210007204. 9 discloses a preparation method of a halogen-free flame-retardant rubber composite material, the steps are: A, forming Al(OH)3 nanoparticles; B, placing the nano-aluminum hydroxide particles obtained in step A in a blast drying box , drying; the drying is to dry the mixture of aluminum hydroxide nanoparticles and silane coupling agent solution at 150°C for 50min; C, EPDM rubber after mastication / banburying ( In EPDM), add the aluminum hydroxide nano-particle of step B, also add rubber oil, promotor, vulcanizing agent, repeatedly knead to uniform on the roller, thin pass next sheet, obtain EPDM rubber compound rubber; D, Put the kneaded EPDM flame retardant rubber into the mold, cold press and fill the mold for the first vulcanization, and then put it in the blast drying oven on the glass cloth for secondary vulcanization to obtain the finished halogen-free flame retardant rubber composite material. This kind of flame-retardant rubber material has poor corrosion resistance, ozone resistance and ultraviolet resistance, and has relatively low mechanical properties and poor wear resistance.

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