A kind of preparation method of durable fireproof polyurethane foam material

Abstract

The invention discloses a method for preparing a durable fireproof polyurethane foam material. The durable fireproof polyurethane foam material is prepared from the following raw materials in parts by weight: 30-40 parts of pentaerythritol polyether, 20-30 parts of glycerol polyether, and isocyanate 20-30 parts, 10-15 parts of polycarbonate diol, 8-14 parts of polyethylene, 5-11 parts of catalyst, 10-15 parts of foaming agent, 10-15 parts of flame retardant and 7-13 parts of water, Use a mixing tank to stir and mix the raw materials of the weight parts evenly to obtain a durable fireproof polyurethane foam; the mixing tank includes a first stirring mechanism, a second stirring mechanism and an auxiliary stirring mechanism, and the setting of multiple stirring mechanisms makes the The mixing tank has the advantages of convenient operation, safe working environment, and good mixing effect. By adding an appropriate amount of flame retardant to the raw materials, the polyurethane foam not only has good elasticity, light weight, fast pressure-sensitive fixing, convenient use, and free bending. It has the advantages of ultra-thin volume, and has the function of fire and flame retardancy, which is useful for people's life and production.

Description

technical field [0001] The invention belongs to the technical field of foam materials, and in particular relates to a preparation method of a durable fireproof polyurethane foam material. Background technique [0002] In industrial and civil buildings, due to the layout of internal pipelines and the needs of building construction, many pipeline perforations are usually formed on the fireproof partitions of buildings, and empty openings reserved for electrical appliances. , will become the diffusion channel of fire and toxic smoke, which not only expands the harm of fire, but also increases the difficulty of extinguishing fire. Although traditional polyurethane organic sealing materials have the advantages of light weight, low thermal conductivity, and good heat resistance, they generally have the disadvantage of not being able to balance heat preservation and fire prevention. The fire spread and easily caused casualties to trapped people and rescuers. Traditional inorganic...

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Problems solved by technology

Although traditional polyurethane organic sealing materials have the advantages of light weight, low thermal conductivity, and good heat resistance, they generally have the disadvantage of not being able to balance heat preservation and fire prevention. The fire spread and could easily cause casualties to trapped people and rescuers

Traditional inorganic materials such as rock wool and glass wool have the advantages of acid and alkali resistance, corrosion resistance, high stability, and aging resistance, but they have disadvantages such as brittle foam, easy pulverization, and low strength, as well as dust and fine particles. Fiber and other shortcomings, not only pollute the air but also easy to breed bacteria, has already become a hidden danger to people's health, and the thermal insulation performance is limited, the scope of application is limited

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