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Gap filler with waterproof and flame retardant functions and preparation method thereof

A kind of caulking, functional technology, applied in chemical instruments and methods, other chemical processes, building components, etc., can solve the problem that building materials cannot have both waterproof and fire-resistant functions.

Inactive Publication Date: 2007-01-31
JINGTAN ALBERT BEIJING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the defect that the above-mentioned building materials cannot have both waterproof and fire-retardant functions, and designs a caulking adhesive that can not only expand when encountering water, but also expand and flame-retardant when encountering fire. The invention also relates to the preparation method of the caulking adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: The present embodiment is a preferred embodiment: after the commercially available water-absorbing swellable resin of 3 kilograms and 7 kilograms of commercially available EPDM (ethylene propylene diene) rubbers of 7 kilograms are fully mixed in the reactor at normal temperature, add 10 kilograms Intumescent flame retardant, and fully mixed to obtain a relatively high viscosity mud-like (glue-like) gap filler, and then extruded or injected into a piece on a common extruder, and treated with back glue, and finally divided into strips to obtain Strips of caulk that can be posted. The strip-shaped caulking glue is easy to cut, and can be pasted on various doors and windows, and various seams, and has the effect of expanding and flame retardant when exposed to water and fire, so as to prevent water leakage and fire spread. The above-mentioned intumescent flame retardant is a commercially available intumescent flame retardant, preferably a composite carbon fibe...

Embodiment 2

[0012] Example 2: After fully mixing 2 kg of commercially available water-absorbing swellable resin with 8 kg of commercially available EPDM rubber at room temperature in a reactor, add 3-4 kg of intumescent flame retardant and fully mix to obtain a viscous It is a relatively low-strength gel-like caulk, and then filled into a squeezable container. In a small gap, it can be squeezed out to fill the gap or the edge of the gap. It can also be filled into a large container, filled into a squeeze gun when in use, and applied to the crevices. The intumescent flame retardant of this embodiment is the same as that of Embodiment 1.

[0013] The caulking glue in this embodiment also has the effect of expanding and flame retardant when exposed to water and fire, thereby preventing water leakage and fire from spreading.

Embodiment 3

[0014] Example 3: After fully mixing 4 kg of commercially available water-absorbing swellable resin with 6 kg of commercially available EPDM rubber at room temperature in a reactor, 6 kg of intumescent flame retardant was added and fully mixed to obtain medium viscosity The gel-like gap filler is then filled into a squeezable container, which can be squeezed out to fill the gap or the edge of the gap. It is also possible to carry out the glue preparation process on the muddy joint glue under the formula of this example, that is, to extrude or inject the sheet on an ordinary extruder, and through the back glue treatment, and finally divided into strips to obtain strips of various required shapes that can be pasted caulk. The intumescent flame retardant of this embodiment is the same as that of Embodiment 1. The gap filler of this embodiment has the same effect of expansion and flame retardancy when exposed to water and fire as in Embodiment 1, thereby preventing water leakage ...

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Abstract

The invention relates to a building material, especially building gap-filling glue having a function of both water resistance and back-fire relief and the method for preparation. The gap-filling glue is prepared by mixing bulging water-proof colloid with bulging fire retardant and stirring, the weight ratio of said bulging water-proof colloid being 50-75%, and said bulging fire retardant being 25-50%. The prepared gap-filling glue having a function of both water-proof and back-fire relief expands the function of present only water-proof building gap-filling glue, having a function of back-fire relief.

Description

Technical field: [0001] The invention relates to a building material, in particular to a building gap filler with waterproof and fire-blocking functions and a preparation method thereof. Background technique: [0002] Building waterproof filler is closely related to people's daily life, so it has been continuously developed. Existing waterproof materials, especially waterproof glue, are gradually developing in the direction of water absorption and swelling. Swellable rubber and a preparation method thereof. The water-swellable rubber prepared by the method has excellent water-swellability, has no precipitates when it meets water, and can effectively prevent water seepage and water leakage in filled gaps. However, these waterproof materials do not have the function of fire resistance. Because these waterproof materials have air permeability, when a fire occurs, hot smoke will pass through the air-permeable micropores of the waterproof materials in the gaps to the adjacent are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/68C09K3/10
Inventor 贾纬民
Owner JINGTAN ALBERT BEIJING TECH
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