Anti-adhesive flame-retardant waterproof membrane and preparation method thereof

Abstract

The present invention relates to the field of waterproof coiled material, which is an anti-adhesive and flame-retardant waterproof coiled material, which comprises a flame-retardant polymer substrate layer, a flame-retardant pressure-sensitive adhesive layer and a flame-retardant and anti-adhesive coating which are sequentially stacked; wherein, the flame-retardant The pressure-sensitive adhesive layer includes the following components by mass: 15-45 parts of styrene thermoplastic elastomer, 30-60 parts of tackifier, 20-40 parts of softener, 20-50 parts of flame retardant, antioxidant 0.3-0.6 parts and 0.3-1.2 parts of coupling agent; the flame-retardant anti-stick coating includes the following components by mass: 30-60 parts of acrylic emulsion, 30-50 parts of flame-retardant powder, 0.1-1 part of dispersant, 0.3-1 part of defoaming agent, 0.2-2 parts of coupling auxiliary agent, 4-8 parts of film-forming auxiliary agent and 2-8 parts of silicon dioxide. This anti-adhesive and flame-retardant waterproof membrane has flame-retardant modification on the polymer substrate layer and the adhesive layer to achieve the overall flame-retardant design, and adds a flame-retardant and anti-adhesive coating. The synergistic effect of these two different flame retardant systems of powder makes the waterproof membrane have excellent flame retardant function.

Description

technical field [0001] The invention relates to the field of waterproof coiled materials, in particular to an anti-adhesive and flame-retardant waterproof coiled material and a preparation method thereof. Background technique [0002] Waterproof membranes currently on the market are generally formed by coating an adhesive layer on a polymer substrate layer. As a material with high molecular polymer as the main body, it must have the disadvantage of being extremely flammable. Moreover, high molecular polymers produced with oil and natural gas as basic raw materials can produce gas, smoke and dust particles in case of accidental fire during storage, transportation and construction, which can damage the respiratory system in the slightest and be fatal in severe cases. [0003] In order to solve the above problems, people try to achieve flame retardancy by flame-retardant modification of the polymer substrate layer, but the flame-retardant effect is not satisfactory only by fla...

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Problems solved by technology

[0003]In order to solve the above problems, people try to achieve flame retardant through flame retardant modification of the polymer substrate layer, but only the flame retardant modification of the Burning effect is not ideal

This is because a large amount of softening oil is added to the viscose layer, which is a flammable building material. When a fire occurs accidentally during storage, transportation and construction, the viscose layer is very easy to catch fire and continues to burn, generating a lot of heat, which will instead Ignite the flame-retardant modified polymer substrate layer, and the viscose burning droplets are easy to ignite the combustibles below, further aggravating the fire

[0004] Moreover, the existing adhesive layer cannot penetrate into the cement mortar, and the bonding with the concrete is not tight enough. When the waterproof membrane is damaged or pierced by foreign objects, water easily enters between the adhesive layer and the concrete, so that The problem of water channeling after partial water leakage of the waterproof membrane leads to complete failure of waterproofing

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