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Fire-proof sheet

A technology of sheet and mass parts, applied in the direction of layered products, chemical instruments and methods, glass/slag layered products, etc., can solve the problems of poor flexibility and achieve the effect of full flame retardant performance

Inactive Publication Date: 2008-07-16
FURUKAWA TECHNO MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, there is a concern that the physical properties of the tape and sheet, especially the flexibility, will deteriorate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8 and comparative example 1～5

[0056] Use a kneader to mix the base polymers and ingredients (materials) shown in Tables 1 to 2 to make a mixture. After cutting the material with a roll, dissolve it with a solvent in a mixer, and apply it to a thickness of Both sides of a 0.28 mm glass cloth ("H340F" (trade name), manufactured by Unischka Fiberglass) were dried to obtain a fireproof sheet having a thickness of 0.4 mm.

Embodiment 1

[0096] Example 1 is an example in which the mixing amount of aluminum hydroxide and borate in the acrylic rubber base is small. Due to the small amount of filler, the flexibility is good and the winding property of the cable is good. Flame retardancy A flame disappears in 0-5 seconds, flame retardancy B flame disappears in 5-10 seconds, and the combustion residue will not disintegrate. Oil resistance Also good.

Embodiment 2

[0097] Example 2 is an example in which a moderate amount of aluminum hydroxide and borate is added to the acrylic rubber base material, and ethers and esters are added as softeners. The flame disappears in 0 seconds, and the flame retardancy B flame disappears in 0 to 5 seconds, and the combustion residue does not disintegrate, and the oil resistance is also good.

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Abstract

The present invention provides a fireproof sheet which does not generate halogen gas such as chlorine or bromine when burned, has excellent flame retardancy and fire resistance, and has moderate strength, flexibility, and adhesiveness at the same time . The sheet for fire prevention forms a layer having a rubber composition on at least one side of the glass cloth, and the rubber composition contains acrylonitrile-butadiene rubber and / or acrylic rubber in 100 parts by mass of the base polymer containing 100-500 parts by mass of metal hydrate and 20-200 parts by mass of borate compound.

Description

technical field [0001] The present invention relates to a fireproof sheet which does not contain a halogen-based flame retardant such as chlorine or bromine, and has excellent fireproof properties. technical background [0002] Various types of electric wires and cables are installed in buildings, tunnels, etc. However, there are cases where great disasters occur in the event of a fire, and therefore there is a strong demand for cable disaster prevention. [0003] As a function of fireproof tape or fireproof sheet for cable disaster protection, in addition to the usual flame retardancy, it is also hoped that the fireproof layer formed in the form of a tape or sheet will not collapse due to burning, and it will be bonded and cured to the cable coating Protect the interior. [0004] In addition, in the case of OF cables (oil-impregnated paper insulated cables), it is assumed that oil resistance in normal times is also required in manholes. [0005] The inventors of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K21/14B32B17/04B32B25/10
Inventor 宫原利雄清田英久
Owner FURUKAWA TECHNO MATERIAL
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