KR20130075625A - Filling fire-resistant block - Google Patents

Abstract

PURPOSE: Fire-resistant filling block is provided to expand in case of fire and block the whole through hole by compressing a pipe which is softened with fire, thereby preventing fire from spreading to a side room. CONSTITUTION: Fire-resistant filling block comprises 14.5-38.5 weight % of NR rubber, 10-40 weight % of fire resistance filler, 5-30 weight % of A-2 oil as softener, 0.1-2 weight % of stearic acid (C 18H 36O 2) as fatty acid, 0.1-2 weight % of dispersing agent, 1.2-10.2 weight % of additive, 0.1-5 weight % of and cross-linking agent and 0.1-5 weight % of pigment are mixed and shaped into a pad shape. The additive comprises a mixture of 0.1-2 weight % of cumarone (C_8H_6O), 0.1-4.1 weight % of amine-based thermal ageing preventer, and 1-4.1 weight % of foaming agent. In the fire-resistant filling block is added 10-40 parts by weight of black carbon about 100 parts as by weight of the fire-resistant filling block as heat resistant strength assignment. [Reference numerals] (AA) Fire-resistant filling block; (BB) Pipe; (CC) Wall

Description

Fire-resistant block {Filling fire-resistant block}

The present invention relates to a refractory-filled structural block for preventing fire from spreading through a part of a structural material such as a pipe, an electric wire cable, and the like that penetrates a building structural member during a fire, and a gap between a joint, a curtain wall, and a floor. .

In the construction of factories and office buildings, through holes are drilled in fireproof partitions such as walls and floors that divide each living space, and flammable synthetic resin pipes such as polyvinyl chloride pipe and polyethylene pipe are inserted into the through holes. Water, sewage pipes, air conditioning pipes and various electric wire cables are inserted.

When a fire occurs in a living space, the through hole acts as a flame passage because the heat or flame causes the insulation of the water, sewage pipes, the foam insulation of the piping of the air conditioning system, or the coating of the electric wire cable to burn or melt. The flames and heat travel through the through hole to the next room.

For this reason, conventionally, a fire protection method is applied by inserting a so-called fire resistant double tube coated with an outer side of a resin pipe with a slate pipe into the through hole, and sealing the space between the fire resistant double tube and the through hole with mortar or rock wool. It is becoming.

However, such a fire-resistant double tube is a weight of a considerable weight, so there is a problem that the transportation is very difficult and poor construction. In addition, once a fire occurs, the resin pipe, which is an inner tube coated with a slate pipe, is baked in a sealed state and generates a harmful gas, thereby introducing harmful gas into the next room.

Due to this problem, in recent years, when a fire retardant pad is wound around an outer surface of a resin pipe or an air-conditioner pipe and heated by a fire, the fire retardant pad expands and compresses a pipe softened by the fire to block the entire through hole. The pad is used.

However, the fire retardant pad as described above is expanded due to the heat caused by the fire, but as time passes, it causes a mold collapse and collapses from the light through hole. .

In addition, the flame retardant pads for the fire and because it is very expensive, there was a problem that is difficult to apply to the field.

The present invention has been made in order to solve the above problems, it is wound on the outer surface of the resin pipe or the piping of the air conditioning equipment, etc. in the event of a fire, the refractory filling structure block is expanded to form a refractory block while crimping the softened pipe by the fire It is an object of the present invention to provide a fire-resistant filling structure block which can prevent the fire from spreading to the next room by closing the entire through hole.

In addition, it is an object of the present invention to provide a refractory-filled structural block which tightly closes through holes without mold collapse and collapse, even if a fire occurs over time.

In addition, it is an object of the present invention to provide a refractory filling structure block that can be installed at a low price by reducing the production cost.

In order to achieve the above object, the refractory filler structure block according to the present invention comprises NR rubber 14.5 to 38.5 wt%, 10 to 40 wt% fire resistant filler, 5 to 30 wt% A-2 oil as a softener, and stearic acid as fatty acid (C ₁₈ H ₃₆ O ₂ ) 0.1 to 2% by weight, 0.1 to 2% by weight of the dispersant, 1.2 to 10.2% by weight of the additive, 0.1 to 5% by weight of the crosslinking agent and 0.1 to 5% by weight of the pigment is mixed to form a pad.

At this time, the additive is characterized in that consisting of 0.1 to 2% by weight of Coumarone (C ₈ H ₆ O), 0.1 to 4.1% by weight of the amine-based anti-aging agent, 1 to 4.1% by weight of the blowing agent.

In addition, the refractory filling structure block is characterized in that the black carbon is further mixed with 10 to 40 parts by weight based on 100 parts by weight of the refractory filling structure block as a heat resistant strength imparting agent.

The refractory filling structure block of the present invention configured as described above is wound on the outer surface of the resin pipe or the piping of the air conditioning apparatus, and when the fire occurs, the refractory filling structure block expands and compresses the pipe softened by the fire to block the entire through hole. Can effectively prevent smearing into the next room.

In addition, even if a fire occurs and the time elapses, the resin blocking the through-holes can tightly close the through-holes without mold collapse or collapse.

In addition, it can be installed at a low price by reducing the production cost.

1 is a view showing a state of use of the inflatable fire-resistant structure block for compartment fire protection according to the present invention.

The fire-resistant filling structure block according to the present invention is formed by drilling through-holes in fire-proof partitions such as walls and floors in the construction of factories and office buildings, and winding the fire-resistant filling structure blocks of the present invention formed in the form of a band in the through-holes. By inserting a flammable synthetic resin pipe such as polyvinyl chloride pipe or polyethylene pipe and installing it, if a fire occurs and heats up, the fire-resistant filling structure block wound on the outer surface of the pipe expands and compresses the pipe softened by the fire, so that the entire through hole Occupies.

Refractory filled structure block according to the present invention is 14.5 to 38.5% by weight of NR rubber, 10 to 40% by weight of a refractory filler, 5 to 30% by weight of A-2 oil as a softener, stearic acid (C ₁₈ H ₃₆ O ₂ ) 0.1 ~ as fatty acid 2 weight%, 0.1-2 weight% of dispersing agents, 1.2-10.2 weight% of additives, 0.1-5 weight% of crosslinking agents, and 0.1-5 weight% of pigments are mixed, and it shape | mold in pad shape.

14.5-38.5 weight% of NR rubber is mixed in the fireproof filling structure block by this invention.

Since rubber does not melt and phase change into a liquid phase even when heated, when NR rubber is used as the base resin, the refractory-filled structural block is not lost from its construction position at the time of a fire, thereby completely obstructing the through-hole.

In addition, since NR rubber has good heat resistance, weather resistance and ozone resistance, and maintains proper flexibility even in long-term storage, workability is not deteriorated.

When NR rubber is mixed with 14.5 ~ 38.5% by weight, when the NR rubber is mixed with less than 14.5% by weight, the fire-resistant structure block may cause mold collapse by the flame. Since other physical properties, such as deterioration, NR rubber is preferably mixed 14.5 ~ 38.5% by weight.

In the refractory filling structure block according to the present invention, a filler (Filler) is mixed with 10 to 40% by weight.

The filler uses a commercially available brand name 'CH-15C' or 'KISUMA' manufactured by Kyowa, which is a white powder of magnesium hydroxide coated with an organic material, as a refractory filler.

The refractory filler is mixed with the refractory filling structure block of the present invention to prevent the refractory filling structure block from being burned even when a fire occurs and is heated so that the through hole can be continuously blocked.

When the filler is mixed with 10 to 40% by weight but less than 10% by weight, the fire resistance of the refractory filling structure block is lowered, and the fire may lose its original purpose, and when mixed with more than 45% by weight, NR rubber and The mixing amount of the other components may be reduced, and may be heated in the event of fire, causing mold collapse, or other physical properties such as expandability and heat resistance may be lowered, so that the filler is preferably mixed in an amount of 10 to 40% by weight.

And 5-30% by weight of the 'A-2' oil as the aromatic oil as a softener is mixed in the refractory packed structure block of the present invention.

The 'A-2' (brand name) oil is mixed with a refractory-filled structure block as an aromatic oil to soften rubber properties such as strength and elongation rate by softening, plasticizing, and swelling of the NR rubber. Keep it.

When the A-2 oil is mixed with 5 to 30% by weight, when the A-2 oil is mixed with less than 5% by weight, the properties of the NR rubber are lowered and workability is lowered. When the NR rubber is mixed with more than 30% by weight, Since the other physical properties of the filling structure block is degraded, it is preferable that 5 to 30% by weight of A-2 oil is mixed.

And stearic acid (C ₁₈ H ₃₆ O ₂ ) is mixed with 0.1 to 2% by weight of fatty acid in the refractory packed structure block of the present invention.

In addition, 0.1 to 2.0% by weight of the dispersant is mixed in the refractory packing structure block of the present invention so that various components are evenly mixed so that the refractory packing structure block maintains uniform properties as a whole.

The refractory filling structure block is a refractory filling structure block comprising 10 to 40 parts by weight of black carbon with respect to 100 parts by weight of the refractory filling structure block as a heat resistant strength imparting agent.

When the carbon is mixed with the refractory-filled structural block as a heat-resisting strength imparting agent, when the refractory-filled structural block is expanded by a fire and occludes the through-hole, the carbon is shaped and collapsed by giving a certain strength to the expanded refractory-filled structural block. It also serves as a swelling agent that is heated and expands in the event of a fire.

When the carbon is mixed at less than 10 parts by weight, the expandability and strength may be reduced, and the mold may be collapsed. When the carbon is more than 40 parts by weight, other physical properties of the refractory-filled structure block may be lowered, so it is preferably mixed at 40 parts by weight or less. .

And the refractory filling structure block of the present invention is mixed 1.2 ~ 10.2% by weight of the additive in order to give various physical properties.

The additive is coumarone (C ₈ H ₆ O) 0.1 to 2.0% by weight, 0.1 to 4.1% by weight of an amine-based anti-aging agent and 1.0 to 4.1% by weight of 'CELEX-A' of Kumyang Co., Ltd.

Coumarone, an additive, increases the binding strength between resins, and an anti-aging agent prevents oxidation of the refractory packed structure block by stopping the automatic oxidation chain reaction by oxygen of the resin of the present invention. (Gumyang Co., Ltd.) is a foaming accelerator, an organic foaming accelerator having a melting point of 120 to 130 ° C with improved hygroscopicity, and promotes foaming and expansion of a refractory-filled structural block in case of fire.

And 0.1-1.0 weight% of crosslinking agents, and 0.1-5.0 weight% of pigments are mixed and comprised by the fire-resistant filling structure block of this invention.

The following is a test result of the fire resistance performance of the refractory filling structure block of the present invention.

Pipe: P.V.C. pipe, outer diameter 100mm

-Fireproof board thickness: 100mm

-Diameter of penetration point of fireproof board: 150mm

-Heating method: Heat so that the time course of temperature under measurement by thermocouple in the furnace becomes the value expressed by the following formula (according to ISO 834).

T: Average furnace temperature (° C.)

t: elapsed time of the test (minutes)

If the heating pressure exceeds 20 Pa, the pressure is released.

The pipe of the refractory filling structure is wound to 25 mm in thickness and inserted into the penetration part of the fireproof plate, and then one side of the fireproof plate is heated by a heating furnace.

The refractory filling structure blocks used in the experiment were NR rubber 35wt%, refractory filler 25wt%, A-2 oil 23wt%, stearic acid 1wt%, dispersant 1wt%, coumarone 1.5wt%, amine-based anti-aging agent 2.5wt%, It is a refractory filling structure block formed by mixing 4 wt% of a blowing agent, 5 wt% of a crosslinking agent, and 2 wt% of a pigment.

Evaluation item result Condition Flame Spread Continues on Unheated Side Satisfying condition No lasting flame eruption in excess of 10 seconds on the unheated side. Continued outbreak on the unheated side Satisfying condition There should be no lasting outbreak of more than 10 seconds on the unheated side. Injury, gap, etc. Satisfying condition Do not cause any damage or gaps such as heat passing through the flame. Significant smoke and smoke on the unheated side Satisfying condition During heating, the flame should not come out of the non-heating side through the heat of return and the inside of the heating furnace should not be visualized. Temperature of unheated noodles is below 200 ℃ Satisfying condition The temperature measured at the non-heating section during heating should not exceed 200 ℃.

Experimental results As shown in Table 1, the refractory filling structure block according to the present invention satisfies all conditions.

Fire-resistant structure block of the present invention configured as described above is wound on the outer surface of the resin pipe or piping of the air conditioning equipment, etc. in the event of a fire, the fire-resistant filling structure block is expanded to compress the softened pipe by the fire to block the entire through-hole It can effectively prevent spreading to the next room.

In the above, the fireproof filling structure block which concerns on this invention was demonstrated.

It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, and the meanings of the claims and All changes or modifications derived from the scope and the equivalent concept shall be construed as being included in the scope of the present invention.

Claims (3)

NR rubber 14.5-38.5 weight%,
Fire retardant filler 10-40% by weight,
5 to 30% by weight of A-2 oil as a softener,
0.1-2% by weight of stearic acid (C ₁₈ H ₃₆ O ₂ ) as a fatty acid,
0.1-2% by weight of dispersant,
1.2-10.2 wt% of additives,
0.1-5% by weight of crosslinking agent and
0.1 to 5% by weight of the pigment is a refractory filling structure block, characterized in that molded into a pad shape.
The method of claim 1,
Preferably,
Coumarone (C ₈ H ₆ O) 0.1 to 2% by weight, amine-based heat-resistant anti-aging agent 0.1 to 4.1% by weight, 1 to 4.1% by weight of the blowing agent, characterized in that the refractory filling structure block.
The method of claim 1,
The refractory filling structure block is a refractory filling structure block, characterized in that 10 to 40 parts by weight of black carbon is further mixed with respect to 100 parts by weight of the refractory filling structure block as a heat resistant strength imparting agent.

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