CN111087815A

CN111087815A - Method for manufacturing filler for fireproof door

Info

Publication number: CN111087815A
Application number: CN201911004988.8A
Authority: CN
Inventors: 林载珍; 金英基
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-23
Filing date: 2019-10-22
Publication date: 2020-05-01
Also published as: KR101987597B1

Abstract

The invention provides a method for manufacturing a filler for a fireproof door, which comprises the following steps: a first mixing process of charging 80 wt% of a silicon base material formed by mixing a silicone resin and a silicone rubber into a reader, then charging 1 wt% of a silicone filler into the reader, then stirring at 120 ℃ for 1 hour, then charging 2 wt% of a physical property stabilizer into the reader, and then stirring at 120 ℃ for 1 hour; a second mixing process of charging 10 wt% of the flame retardant into the reader after the first mixing process; a third mixing step of adding 3 wt% of a hardening accelerator, 2 wt% of a physical property enhancer, and 2 wt% of a heat resistance enhancer to the reader after the second mixing step, thereby completing a raw material; and (3) an extrusion processing technology, namely, the raw material finished by the third mixing technology is matured at the temperature of-20 ℃ for 24 hours, and then is put into a die of the extrusion processing technology, so that the finished product of the filler is extruded and processed.

Description

Method for manufacturing filler for fireproof door

Technical Field

The present invention relates to a method for manufacturing a packing for a fire door, and more particularly, to a method for manufacturing a packing for a fire door, which can satisfy both water tightness and fire resistance using one packing.

Background

Generally, a door for a ship is installed in each of a cabin and a passage of a hull to open and close the entrance and exit, thereby not only sealing the room and the passage of the ship, but also cutting off inflow of seawater, rainwater, flame, cold air, and the like from the outside.

In particular, in order to cope with a situation of sinking or submergence caused by an accident while the ship is mainly sailing on the sea, each door needs to be waterproof and fireproof as a basic matter, and needs to have a structure stronger and more rigid than a door of a general ground structure.

A conventional door for a ship includes: a door frame integrally formed with the hull; the hinge door structure has one end hinged and rotated and stuffing set in the edge to connect the door frame for airtight.

Further, as a representative prior art relating to the above-mentioned filler, Korean patent office laid-open publication No. 10-2017-.

The prior art is characterized by comprising: a main body inserted into the receiving groove formed in the door frame in a recessed manner in a manner of facing the door leaf, and having a hollow shape; a mounting member including a plurality of fixing members respectively formed to protrude from both side surfaces of the body; and a sealing member having a tubular shape and coupled to a front surface of the mounting member, wherein the mounting member is formed of a flame-retardant synthetic rubber material, and the sealing member is formed of a non-combustible fiber material.

However, it is not clear whether the filler of the prior art can effectively cope with a fire by flame retardancy and incombustibility at the time of fire occurrence, but it has a disadvantage that it is not suitable as a sealing material for a marine fire door because water tightness is not considered.

In particular, in the marine fire door, each filler is doubly installed in the fire door in a state where the filler having fire resistance and the filler having water tightness are separately manufactured, but such an installation method has disadvantages in that an unnecessary space for installing the filler needs to be secured, and it is not economical because two types of fillers are used, and thus it is not practical.

Prior art documents

Patent document

(patent document 0001) document 1: korea patent office laid-open publication No. 10-2017-

Disclosure of Invention

Accordingly, an object of the present invention, which is made to solve the above-mentioned problems, is to provide a method for manufacturing a packing for a fire door, which can satisfy both functions of water tightness and fire resistance with one kind of packing.

The present invention for achieving the above object is characterized in that a method for manufacturing a packing for a fire door includes: a first mixing process of charging 80 wt% of a silicon base material formed by mixing a silicon resin and a silicon rubber into a reader, then stirring at a temperature of 120 ℃ for 1 hour at a rotation speed of 28 rpm/min, then charging 1 wt% of a silicon filler into the reader, then stirring at a temperature of 120 ℃ for 1 hour at a rotation speed of 30 rpm/min, then charging 2 wt% of a physical property stabilizer into the reader, and then stirring at a temperature of 120 ℃ for 1 hour at a rotation speed of 30 rpm/min; a second mixing step of charging 10 wt% of a flame retardant into a reader for stirring the silicon base material, the silicon filler and the physical property stabilizer together after the first mixing step, and stirring the mixture at a rotation speed of 30 rpm/min at a temperature of 180 ℃ for 2 hours; a third mixing step of adding 3 wt% of a hardening accelerator, 2 wt% of a physical property enhancer, and 2 wt% of a heat resistance enhancer to the reader, which is configured to stir the silicon base material, the silicon filler, the physical property stabilizer, and the flame retardant together after the second mixing step, and then stirring the mixture at a temperature of 120 ℃ and a rotation speed of 30 rpm/minute for 30 minutes, thereby completing a raw material; and (3) an extrusion processing technology, wherein the raw material finished by the third mixing technology is matured at the temperature of-20 ℃ for 24 hours, and then is put into a die of the extrusion processing technology, so that the finished product of the filler is extruded and processed.

In the present invention, the packing for cutting the gap between the fire door and the doorframe is manufactured in a form having both functions of water tightness and fire resistance, so that the water tightness and the fire resistance can be satisfied with only one kind of packing without separately providing the packing having the water tightness and the packing having the fire resistance to the fire door, thereby reducing the number of unnecessary parts and realizing a cost reduction effect.

Drawings

Fig. 1 is a view showing the structure of a packing for a fire door according to a preferred embodiment of the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the detailed description to be described later, in order to achieve the technical problem described above, a representative example of the present invention is proposed. In addition, the configuration of the present invention is explained instead of another embodiment that can be proposed as the present invention.

Figure 1 attached is a diagram showing a cross section of a fire rated door provided with padding according to a preferred embodiment of the present invention.

As shown in fig. 1, the fire door 100 of the present invention performs opening and closing operations by rotating, with one end hinge coupled to a door frame 200 constituting an outer frame, with the hinge as a base point.

An installation groove 102 is formed around the outer periphery of the fire door 100, and the packing 10 is inserted into the installation groove 102. The filler 10 is closely attached to a protrusion provided on the door frame 200, and cuts the gap between the fire door 100 and the door frame 200.

The filler 10 of the present invention is manufactured to have both water-tightness and fire-resistance, so that both water-tightness and fire-resistance can be achieved by providing only one type of filler 10 to the fire door 100.

Next, a method for producing the filler 10 for a fire door having both the water-tightness and the fire-resistance as described above will be described representatively.

The filler 10 of the present invention is generally formed by a raw material mixing process and an extrusion process.

The raw material mixing process is divided into first to third mixing processes.

The first mixing process is a process of mixing raw materials of the initial filler, and the silicon main material, the silicon filler and the physical property stabilizer are put into a 2-stage reader and read for 3 hours. Preferably, after the silicon base material is placed in the 2-stage reader, the mixture is stirred for one hour, then the silicon filler is placed in the 2-stage reader and stirred for one hour, and finally the physical property stabilizer is placed in the 2-stage reader and stirred for 1 hour. In this case, the silicon filler and the physical property stabilizer should be sufficiently mixed to stabilize physical properties, but when a chemical reaction occurs between silicon and the catalyst, if there are impurities or oxygen (O)₂) Since the stability of the physical properties is lowered, impurities and oxygen are removed by making nitrogen gas take charge.

The reason why the silicon base material, the silicon filler and the physical property stabilizer are put into a 2-stage reader and read for 3 hours is to completely perform the neutralization reaction of the silicon, the physical property stabilizer and the filler.

The silicon main material used in the first mixing process is a silicon resin or a silicon rubber, and includes at least one selected from the group consisting of methyldichlorosilane, trimethylchlorosilane, methyltrichlorosilane, dimethyldichlorosilane, vinylchlorosilane, phenylchlorosilane, trichlorosilane, and tetrachlorosilane.

The silicon filler used in the first mixing process is used to safely maintain elongation, tensile strength, breaking strength, heat resistance, cold resistance, light resistance, oil resistance, moisture resistance, abrasion resistance, and the like of silicon, and includes at least one selected from the group consisting of a silicone resin, an H polymer, a non-reactive polymer, an organic silane coupling agent, an OH polymer, a vinyl polymer, and a phenyl polymer.

The physical property stabilizer used in the first mixing process is added as a catalyst for complete chemical bonding of the silicon and the filler, and includes at least one selected from the group consisting of rare earth, titanium, manganese, iron, cobalt, and nickel compounds.

The second mixing process is as follows: after the first mixing step, which is the previous step, stirring of the silicon base material, the silicon filler and the physical property stabilizer is completed in the reader, the flame retardant is charged into the reader, and after the flame retardant is charged, the mixture is stirred at 30 rpm/min for 2 hours at a temperature of about 180 ℃, so that chemical bonding with different compounds can be satisfactorily achieved.

Preferably, the flame retardant is any one of a phosphorus flame retardant, a halogen flame retardant, an inorganic flame retardant and a flame retardant synergist.

It is known that the phosphorus-based flame retardant has good flame retardancy without departing from environmental regulations.

The halogen flame retardant is a product which has good flame retardancy and complies with environmental regulations, and comprises more than one selected from tribromophenoxyethane, TBBA, chlorinated paraffin, chlorinated polyethylene and aliphatic chloride.

The inorganic flame retardant is restricted in europe or developed countries because it has good flame retardancy but complies with environmental regulations, and includes at least one selected from ATH, antimony oxide, and magnesium hydroxide.

The flame retardant synergist has low flame retardancy, is expensive and uneconomical, and comprises more than one selected from Silicone based additives (Silicone based additives), P/Br compounds and zinc borate.

The third mixing process is as follows: after the second mixing step, which is the previous step, the hardening accelerator, the physical property enhancer, and the heat resistance enhancer are put into the reader, which is stirred with the flame retardant, and the mixture is stirred.

In this case, in the third mixing process, the physical properties are stabilized after the nitrogen gas is taken up, impurities such as an air layer inside the silicon or moisture, oxygen, and carbon dioxide generated during the reaction are discharged to the outside, and then the curing accelerator, the physical property enhancer, and the heat resistance enhancer are added and stirred for 30 minutes.

The hardening accelerator is used to accelerate the hardening of silicon, and in this case, if the amount of the hardening accelerator is small, the reaction does not occur, whereas if the amount is large, the reaction excessively occurs, and the use of silicon may become a cause of failure.

The hardening accelerator includes at least one selected from platinum catalyst, benzoyl peroxide, amines, organic acid anhydrous substances, phenolic resin, epoxy resin, dicyandiamide, polythiol, thiazole accelerator, guanidine accelerator, thiuram accelerator, thiourea accelerator, dithiocarbamate accelerator, natural accelerator, mixed accelerator, dithiocarbamate accelerator and natural vulcanized rubber accelerator.

The physical property enhancer is dosed as a catalyst for complete chemical bonding of the silicon and filler.

The physical property enhancer may be at least one selected from CNC, carbon black, calcium carbonate, magnesium carbonate, clay, kaolin, diatomaceous earth, white carbon black silica acidic filler, talc, recarburization calcareous mass, foreign white lead oxide, barium sulfate, asbestos powder, mica powder, graphite, alumina, and sulfur.

The heat resistance enhancer is used for increasing the continuous use temperature of silicon and for supplementing the heat stability, wear resistance and abrasion resistance.

The heat-resistant reinforcing agent includes at least one selected from the group consisting of polyetherimide, polysulfone, polyethersulfone, SiO2, polyphenylene sulfide, polyphthalamide, polyether ketone, polyetherimide, aluminum hydroxide, and magnesium hydroxide.

And (3) maturing the raw materials finished through the first to third mixing processes at the temperature of-20 ℃ for 24 hours, then stabilizing the chemical reaction of the raw materials, and then putting the raw materials into a die of an extrusion processing process, so as to extrude and process the raw materials into the finished filler.

Next, an example of the filler for a fire door used for manufacturing the present invention will be described.

First, 80% by weight of a silicon base material composed of a mixture of 80% silicone resin and 20% silicone rubber was charged into a reader, and then stirred at a rotation speed of 28 rpm/min at a temperature of 120 ℃ for 1 hour, then 1% by weight of a silicon filler was charged into the reader, and then stirred at a rotation speed of 30 rpm/min at a temperature of 120 ℃ for 1 hour, then 2% by weight of a physical property stabilizer was charged into the reader, and then stirred at a rotation speed of 30 rpm/min at a temperature of 120 ℃ for 1 hour.

Then, 10 wt% of the flame retardant was put into a reader in which the silicon base material, the silicon filler and the physical property stabilizer were stirred together, and then stirred at a temperature of 180 ℃ and a rotation speed of 30 rpm/min for 2 hours.

Next, 3 wt% of a curing accelerator, 2 wt% of a physical property enhancer, and 2 wt% of a heat resistance enhancer were put into the reader in which the silicon base material, the silicon filler, the physical property stabilizer, and the flame retardant were stirred together, and then stirred at a temperature of 120 ℃ for 30 minutes at a rotation speed of 30 rpm/minute.

Next, the raw material finished by the above mixing process is matured at a temperature of-20 ℃ for 24 hours, then the chemical reaction of the raw material is stabilized, and then the raw material is put into a die of an extrusion process, thereby extruding and processing the finished filler.

Claims

1. A method for manufacturing a packing for a fire door, which is inserted into an installation groove (102) formed in the outer peripheral surface of a fire door (100) and cuts off the gap between the fire door (100) and a door frame (200) to achieve both the water tightness and the fire resistance of the fire door (100), is characterized by comprising:

a first mixing process of charging 80% by weight of a silicon base material composed of a mixture of a silicon resin and a silicon rubber into a reader, stirring the mixture at a temperature of 120 ℃ at a rotation speed of 28rpm for 1 hour, charging 1% by weight of a silicon filler selected from a silicon resin, an H polymer, a non-reactive polymer, an organic silane coupling agent, an OH polymer, a vinyl polymer, and a phenyl polymer into the reader for safely maintaining elongation, tensile strength, breaking strength, heat resistance, cold resistance, light resistance, oil resistance, moisture resistance, abrasion resistance, etc. of silicon, stirring the mixture at a temperature of 120 ℃ at a rotation speed of 30rpm for 1 hour, and charging 2% by weight of a physical property stabilizer selected from a rare earth compound, titanium, manganese, iron, cobalt, and nickel compound into the reader as a catalyst for chemical bonding of silicon and the filler, then stirring at a rotation speed of 30 rpm/min for 1 hour at a temperature of 120 ℃;

a second mixing process of charging 10 wt% of any one flame retardant selected from a phosphorus flame retardant, a halogen flame retardant, an inorganic flame retardant, and a flame retardant synergist into a reader in which the silicon base material, the silicon filler, and the physical property stabilizer are stirred together after the first mixing process, and then stirring at a temperature of 180 ℃ and a rotation speed of 30 rpm/minute for 2 hours;

a third mixing step of adding 3 wt% of any one hardening accelerator selected from platinum catalysts, benzoyl peroxide, amines, organic acid anhydrous substances, phenol resins, epoxy resins, dicyandiamide, polythiols, thiazole accelerators, guanidine accelerators, thiuram accelerators, thiourea accelerators, dithiocarbamate accelerators, natural accelerators, mixing accelerators, dithiocarbamate accelerators and natural rubber vulcanization accelerators to the reader, which stirs the silicon master batch, the silicon filler, the physical property stabilizer and the flame retardant together after the second mixing step, and adding 2 wt% of any one hardening accelerator selected from CNC, carbon black, calcium carbonate, magnesium carbonate, clay, kaolin, diatomaceous earth, white carbon black silicon acid filler, clay, kaolin, and the like as a catalyst for chemical bonding of silicon and the filler, Any physical property reinforcing agent selected from talcum powder, recarburized lime, foreign white lead oxide, barium sulfate, asbestos powder, mica powder, graphite, alumina and sulfur, in order to supplement the thermal stability, wear resistance and friction resistance of silicon, 2 weight percent of any heat resistance reinforcing agent selected from polyetherimide, polysulfone, polyethersulfone, SiO2, polyphenylene sulfide, polyphthalamide, polyether ketone, polyetherimide, aluminum hydroxide and magnesium hydroxide is added, and then the mixture is stirred at the temperature of 120 ℃ and the rotating speed of 30 rpm/min for 30 min, thereby completing the raw material;

and (3) an extrusion processing technology, wherein the raw material finished by the third mixing technology is matured at the temperature of-20 ℃ for 24 hours, and then is put into a die of the extrusion processing technology, so that the finished product of the filler is obtained through extrusion processing.