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Fire-resistant expansible rubber composition

A rubber composition and an intumescent technology, applied in the field of fire-resistant intumescent rubber compositions, can solve the problems of intumescent layer structure, poor formability of the fire-resistant intumescent composition, and poor fire-cutting effect, etc., and achieve excellent flexibility. sexual effect

Inactive Publication Date: 2003-11-05
INT CARBIDE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] These conventional fireproof intumescent compositions are very useful when a fire occurs, but these fireproof intumescent compositions have poor moldability, insufficient expansion ratio, weak expansion layer structure, and are easily loosened by fire blowing, so that the airtight fireproof The effect of smoke and fire cutting is not good, but it cannot effectively achieve the effect of fire prevention and isolation of dense smoke

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 5

[0019] The rubber, expandable graphite, phenolic resin, and borate are uniformly mixed with a kneader according to the weight ratio of the ingredients in Table 1 to prepare several fireproof expandable rubber compositions with different compositions. These rubber compositions were kept in a fire at 350° C. for 30 minutes, and then the volumetric expansion ratio was measured and calculated. The calculation method of expansion ratio is volume after expansion / initial volume. In addition to comparing the volume expansion rate, it was also observed whether the graphite would scatter and the appearance of the expansion body. The test results are shown in Table 1.

[0020] Example

[0021] It can be seen from Table 1 that the fireproof intumescent rubber composition composed of each embodiment has a complete and solid appearance after testing, and the graphite will not scatter, and the expansion ratio is more than 10 times. These characteristics show that the fireproof intu...

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PUM

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Abstract

An intumescent rubber composition for fire prevention, comprising rubber, expandable graphite, phenolic resin and borate; the intumescent rubber composition for fire prevention has flexibility and formability, and can be made into various shapes, such as Strips, rings, etc.; when heated, it will expand ten times to fill the gap space where it is located, so this composition can be effectively applied to smoke-proof strips for fire doors, or compartment wall-through structures It has a very excellent effect on preventing the flame from spreading from the fire site to adjacent rooms, or preventing the smoke or toxic gas generated by the flame from spreading to other compartments.

Description

technical field [0001] The present invention relates to a fireproof intumescent rubber composition, in particular to a fireproof intumescent rubber composition which is suitable for building compartment gaps or fireproof doors and the like. Background technique [0002] If the partitions in the building are made of non-combustible materials, in theory, when a fire occurs in one room, it will not spread to the adjacent room. However, there are still through holes in the walls of the partitions between rooms in the building to accommodate cables, network lines, telephone lines, etc. connecting the rooms. Most of these through holes are made of PVC or PE round pipes. When a fire occurs, the material of these through holes will be melted by heat, resulting in bad openings, which become diffusion channels for flames, thick smoke or toxic gases. In addition, there must be gaps between compartments or fire doors and windows, so that the flame and smoke cannot be completely isolate...

Claims

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Application Information

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IPC IPC(8): C08K3/04C08K3/38C08L21/00C08L61/06C08L83/00
Inventor 黄俊杰陶弘辉
Owner INT CARBIDE TECH
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