CN112552671A - Fireproof plugging module and preparation method thereof - Google Patents
Fireproof plugging module and preparation method thereof Download PDFInfo
- Publication number
- CN112552671A CN112552671A CN202011461473.3A CN202011461473A CN112552671A CN 112552671 A CN112552671 A CN 112552671A CN 202011461473 A CN202011461473 A CN 202011461473A CN 112552671 A CN112552671 A CN 112552671A
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- CN
- China
- Prior art keywords
- module
- fireproof
- plugging module
- polyether polyol
- fireproof plugging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
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Abstract
The application provides a fireproof blocking module and a preparation method thereof. The fireproof blocking module comprises 30-45 parts of compound polyether polyol, 5-15 parts of flame retardant, 5-15 parts of low-temperature expanded graphite, 3-5 parts of moisture-proof agent, 0.2-0.4 part of catalyst, 15-25 parts of curing agent, 0.1-0.3 part of plasticizer and 0.2-0.5 part of deionized water. The fireproof plugging module is good in weather resistance, capable of expanding at low temperature, easy to cut and free of slag falling during cutting.
Description
Technical Field
The invention relates to the technical field of fireproof plugging materials, in particular to a fireproof plugging module and a preparation method thereof.
Background
The fireproof plugging material is mainly used for plugging various penetrations, such as various openings formed when cables, air pipes, oil pipes, air pipes and the like penetrate through walls and floors and fireproof separation of cable bridges, so that fire can be prevented from spreading through the openings and gaps, the fireproof plugging material has an excellent fireproof function and is convenient to replace.
At present, the fireproof material is widely applied to various power generation, supply and distribution equipment systems in important places such as power plants, power transmission and transformation, smelting industry, industrial and mining enterprises, subways, hospitals, high-rise buildings, communication, ships, nuclear power stations and the like, and sealing materials of ventilation air pipes, oil pipes, fireproof wall boards and doors and windows, and has the obvious function of preventing fire and smoke from spreading. The fireproof plug is also used for the hole fireproof plugging of electric wires and cable communication optical cables, so that the electric wires, cables and optical cables are prevented from spreading to adjacent rooms from the holes due to fire, and the fire loss is reduced.
However, the existing fireproof blocking module is poor in weather resistance, a product is prone to failure after being wetted by wind, sunlight and the like, the performance stability cannot be guaranteed in a normal state, and then the fireproof effect is difficult to achieve when a fire disaster occurs. And the existing fireproof plugging module is not easy to cut and easy to drop slag during cutting.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a fireproof plugging module which is good in weather resistance, expands at low temperature, is easy to cut and does not drop slag after cutting and a preparation method thereof.
The purpose of the invention is realized by the following technical scheme:
a fireproof plugging module comprises the following components in parts by mass:
in one embodiment, the built polyether polyol includes a difunctional polyether polyol and a trifunctional polyether polyol.
In one embodiment, the flame retardant is at least one of ammonium polyphosphate, melamine, aluminum hydroxide, magnesium hydroxide, pentaerythritol, and zinc borate.
In one embodiment, the moisture barrier is a silicone based.
In one embodiment, the catalyst is at least one of dimethylcyclohexylamine, pentamethyldiethylenetriamine, triethylenediamine, dibutyltin dilaurate, and dibutyltin diacetate.
In one embodiment, the curing agent is at least one of aminoethylpiperazine, m-phenylenediamine, diaminodiphenylmethane, and triethylenetetramine.
In one embodiment, the fireproof blocking module further comprises the following components in parts by mass:
0.3 to 0.5 portion of smoke suppressant.
In one embodiment, the smoke suppressant is at least one of ferrocene, fumaric acid, molybdenum oxide, and ammonium octamolybdate.
In one embodiment, the fireproof blocking module further comprises the following components in parts by mass:
0.5 to 1 portion of pigment and filler.
A preparation method of a fireproof plugging module comprises the following steps:
providing compound polyether polyol, a flame retardant, low-temperature expanded graphite, a moisture-proof agent, a catalyst, a curing agent, a plasticizer and deionized water, wherein the mass ratio of the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water is (30-45): (5-15): (5-15): (3-5): (0.2-0.4): (15-25): (0.1-0.3): (0.2 to 0.5);
mixing and stirring the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst and the deionized water, and then continuously stirring and adding the curing agent and the plasticizer to perform foaming and curing operation to obtain a foaming and curing mixture;
carrying out extrusion molding operation on the foamed cured mixture to obtain a plugging module to be cut;
and cutting the plugging module to be cut to obtain the fireproof plugging module.
Compared with the prior art, the invention has at least the following advantages:
1. the fireproof plugging module is prepared by taking the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent and the plasticizer as main raw materials, and the compound polyether polyol is matched with other components for synergism, so that the fireproof plugging module has better impact resistance, and better water resistance, oil resistance and low-temperature resistance. Meanwhile, the moisture-proof performance of the fireproof plugging module can be effectively improved by adding the moisture-proof agent, and the problem that the fireproof performance of the fireproof plugging module is unstable or the performance of the fireproof plugging module fails after being damped by wind, sunlight and the like is solved, so that the fireproof plugging module has good weather resistance. In addition, the fireproof plugging module adopts low-toxicity or non-toxic components, so that the environment-friendly performance is better.
2. The fireproof plugging module disclosed by the invention has the advantages that the low-temperature expanded graphite is compatible with other components to increase the effect, and a tough carbon layer is formed on the surface of polyether polyol, so that the fireproof protection effect of the fireproof plugging module is enhanced. Meanwhile, due to the addition of the low-temperature expanded graphite, the initial expansion temperature of the fireproof plugging module is greatly reduced, so that the fireproof plugging module can be quickly cured and expanded at low temperature, the fireproof protection effect can be achieved at the initial stage of a fire disaster, and the life and property safety is protected to the maximum extent.
3. According to the invention, polyether polyols with different functionalities are crosslinked and connected in a compounding manner, so that a stable three-dimensional network structure is formed, and the structure of the fireproof plugging module has high stability. Simultaneously, because the synergism of curing agent, plasticizer and dampproof agent, can further strengthen the stability of fire prevention shutoff module, make fire prevention shutoff module easily cut, can be applicable to the hole of various specifications, moreover because the promotion of fire prevention shutoff module structural stability makes fire prevention shutoff module can not fall the sediment when the cutting to be favorable to improving the cutting efficiency of fire prevention shutoff module and the fire behavior after the cutting.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flowchart of a method for manufacturing a fire blocking module in an embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The application provides a fire prevention shutoff module. The fireproof blocking module comprises 30-45 parts of compound polyether polyol, 5-15 parts of flame retardant, 5-15 parts of low-temperature expanded graphite, 3-5 parts of moisture-proof agent, 0.2-0.4 part of catalyst, 15-25 parts of curing agent, 0.1-0.3 part of plasticizer and 0.2-0.5 part of deionized water.
The fireproof plugging module is prepared by taking the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent and the plasticizer as main raw materials, and the compound polyether polyol is matched with other components for synergism, so that the fireproof plugging module has better impact resistance, and better water resistance, oil resistance and low-temperature resistance. Meanwhile, the moisture-proof performance of the fireproof plugging module can be effectively improved by adding the moisture-proof agent, and the problem that the fireproof performance of the fireproof plugging module is unstable or the performance of the fireproof plugging module fails after being damped by wind, sunlight and the like is solved, so that the fireproof plugging module has good weather resistance. In addition, the fireproof plugging module adopts low-toxicity or non-toxic components, so that the environment-friendly performance is better. Furthermore, the low-temperature expanded graphite is matched with other components to increase the efficiency, and a tough carbon layer is formed on the surface of the polyether polyol, so that the fireproof protection effect of the fireproof plugging module is enhanced. Meanwhile, due to the addition of the low-temperature expanded graphite, the initial expansion temperature of the fireproof plugging module is greatly reduced, so that the fireproof plugging module can be quickly cured and expanded at low temperature, the fireproof protection effect can be achieved at the initial stage of a fire disaster, and the life and property safety is protected to the maximum extent. In addition, polyether polyol in the fireproof plugging module is subjected to cross-linking connection with polyether polyol with different functionalities in a compounding manner, so that a stable three-dimensional network structure is formed, and the structure of the fireproof plugging module has high stability. Simultaneously, because the synergism of curing agent, plasticizer and dampproof agent, can further strengthen the stability of fire prevention shutoff module, make fire prevention shutoff module easily cut, can be applicable to the hole of various specifications, moreover because the promotion of fire prevention shutoff module structural stability makes fire prevention shutoff module can not fall the sediment when the cutting to be favorable to improving the cutting efficiency of fire prevention shutoff module and the fire behavior after the cutting.
For better understanding of the fire-blocking module of the present invention, the fire-blocking module of the present invention is further explained below, and an embodiment of the fire-blocking module includes 30 to 45 parts of a compounded polyether polyol, 5 to 15 parts of a flame retardant, 5 to 15 parts of low-temperature expanded graphite, 3 to 5 parts of a moisture-proof agent, 0.2 to 0.4 part of a catalyst, 15 to 25 parts of a curing agent, 0.1 to 0.3 part of a plasticizer, and 0.2 to 0.5 part of deionized water.
It is understood that polyether polyol is an organic polymer obtained by addition polymerization of a starter, i.e., an active hydrogen group-containing compound, with ethylene oxide, propylene oxide, butylene oxide, etc., in the presence of a catalyst, and is commonly used for the production of polyurethane foams, adhesives, elastomers, etc. Polyether polyols have low toxicity, water, oil and wear resistance and also have good impact resistance. General polyether polyols have a low functionality, long chain structure. In the embodiment, the compound polyether polyol is obtained by compounding polyether polyols with different functionalities, so that a chain structure of the polyether polyol can be extended and is in cross-linking connection with each other to form a stable three-dimensional net structure. The flame retardant is a functional auxiliary agent for endowing the inflammable polymer with flame retardancy, and the flame retardant is added into the fireproof plugging module, so that the fireproof plugging module has flame retardancy, and can effectively prevent, delay or stop the propagation of flame when being attacked by an external fire source, thereby achieving the effects of fire prevention and flame retardation. The low-temperature expanded graphite has good expansibility, is high-temperature resistant, radiation-proof, heat-insulating, lubricating, plastic and chemically stable, can form a tough carbon layer on the surface of polyether polyol, and simultaneously can absorb a large amount of heat in the expansion process to reduce the temperature of a system, so that the fireproof plugging module has good flame-retardant and heat-conducting effects. It should be noted that, compared with the common graphite, the low-temperature expanded graphite has a greatly reduced initial expansion temperature, so that the fireproof plugging module can be rapidly cured and expanded at a low temperature, the fireproof protection effect can be achieved at the initial stage of a fire, and the life and property safety is protected to the maximum extent. The performance of the fireproof plugging module is easy to damage in a humid environment, and therefore the fireproof effect is difficult to play when a fire disaster occurs. The moisture-proof agent is an auxiliary agent capable of improving the moisture resistance of the fireproof plugging module and obviously improving the water resistance of the fireproof plugging module. The catalyst is a substance which can change the reaction rate but does not change the total standard Gibbs free energy of the reaction, and the catalyst is added into the fireproof plugging material, so that the curing speed of the fireproof plugging material can be obviously improved, and the industrialization efficiency is greatly improved. The curing agent is also called a hardening agent, a curing agent or a setting agent, and is a substance or a mixture for promoting or controlling a curing reaction, and the curing agent is added into the fireproof plugging module to enable the fireproof plugging module to be rapidly cured and formed and also to enable the fireproof plugging module to be rapidly cured. The plasticizer can reduce the glass transition temperature of the polymer, increase the plasticity and make the fireproof plugging module easier to process and shape. It should be noted that, because the synergistic effect of each component in the fireproof plugging module can show the weatherability that improves the fireproof plugging module, further strengthens the stability of fireproof plugging module, makes the fireproof plugging module easily cut, can be applicable to the hole of various specifications, moreover because the promotion of fireproof plugging module structural stability makes the fireproof plugging module can not fall the sediment when the cutting to be favorable to improving the cutting efficiency of fireproof plugging module and the fire behavior after the cutting. The proper proportion of the multiple fireproof components is very important for continuously playing the fireproof protection role, increasing the flame retardant effect of the fireproof plugging module and prolonging the effective time of the fireproof plugging module, and is also an important principle of formula design.
In order to make the fireproof plugging module easier to cut and prevent slag from falling off during cutting, thereby being beneficial to improving the cutting efficiency of the fireproof plugging module and the fireproof performance after cutting, in one embodiment, the compound polyether polyol comprises difunctional polyether polyol and trifunctional polyether polyol. It will be appreciated that the polyether polyols used in the flexible foams are generally long chain, low functionality polyethers. The difunctional polyether polyol can play a role in increasing the softness of the polyurethane and increasing the tensile elongation because the dihydroxy polyether reacts with the diisocyanate to generate linear polyurethane. The tri-functionality polyether polyol prepared by mixing and polymerizing glycerol, propylene oxide and a small amount of ethylene oxide, namely 10-15% of ethylene oxide has improved activity and water solubility, and increases the tolerance of the catalyst, thereby stably improving the success rate of foaming. However, the fireproof plugging module prepared from the bifunctional polyether polyol or the trifunctional polyether polyol is not easy to cut, and the problem of slag falling easily occurs during cutting. In this embodiment, the compounded polyether polyol includes a bifunctional polyether polyol and a trifunctional polyether polyol, and the bifunctional polyether polyol and the trifunctional polyether polyol are cross-linked, so that a linear chain of the bifunctional polyether polyol is extended, and is cross-linked with a network structure of the trifunctional polyether polyol, thereby forming a stable three-dimensional network structure, and the structure of the fire blocking module has high stability. Compared with polyether polyol with chain and net structures, the stability of the compounded polyether polyol with the three-dimensional net structure is higher, so that the fireproof plugging module is easier to cut, and the slag can not fall off during cutting, thereby being beneficial to improving the cutting efficiency of the fireproof plugging module and the fireproof performance after cutting.
In order to improve the fire-retardant performance of the fire-blocking module and improve the environmental protection performance of the fire-blocking module, in one embodiment, the fire retardant is at least one of ammonium polyphosphate, melamine, aluminum hydroxide, magnesium hydroxide, pentaerythritol and zinc borate. For example, the flame retardant is ammonium polyphosphate, and it can be understood that ammonium polyphosphate belongs to inorganic phosphorus flame retardants and is a non-halogen flame retardant with excellent performance, and the molecule of the ammonium polyphosphate simultaneously contains phosphorus and nitrogen elements, and in the flame retardant process, the phosphorus and the nitrogen have a synergistic flame retardant effect, so that the flame retardant effect is better than that of a flame retardant containing monophosphorus or a flame retardant containing nitrogen. The ammonium polyphosphate has the characteristics of high phosphorus content, high nitrogen content, good thermal stability, good dispersibility, no toxicity, no odor and no generation of corrosive gas, so that the flame-retardant and fireproof performance of the fireproof plugging module can be greatly improved by adopting the ammonium polyphosphate as the fireproof plugging module, and meanwhile, the ammonium polyphosphate has good thermal stability, no toxicity, no odor, better safety performance in the using process and better environmental protection property; it should be noted that ammonium polyphosphate is also used as a dehydration catalyst in the fireproof plugging module, specifically, in a high-temperature environment, ammonium polyphosphate is decomposed by heat energy to generate phosphoric acid with a dehydration function, so that the thermal decomposition process of the fireproof plugging module can be promoted and improved, ammonia gas is generated by decomposition, and is bubbled in the fireproof plugging module, so that the ammonium polyphosphate can generate a non-flammable three-dimensional cellular carbon layer structure through expansion, and thus, the ammonium polyphosphate can generate a strong esterification reaction with other components in the fireproof plugging module and dehydrate to initiate an expansion process to form cells. In addition, when a fire disaster occurs, the surface of the fireproof plugging module can form water drops due to dehydration, so that the flammability of the surface of the fireproof plugging module is reduced, the fire disaster is prevented from spreading rapidly, the fireproof plugging module is protected, gaps of fireproof channels can be plugged after the fireproof plugging module expands, the diffusion of flame and smoke is further prevented, and the fireproof effect of the fireproof plugging module is enhanced. Further, in the embodiment, the ammonium polyphosphate is a high-polymerization long-chain ammonium polyphosphate, the polymerization height of the ammonium polyphosphate reaches more than 50, the water solubility of the ammonium polyphosphate is lower than 2g/100ml, the phosphorus and nitrogen contents are high, the flame retardant effect is good, the pH value is close to neutral, the environmental protection performance is good, the thermal stability is good, the production and the use are very safe, and the ammonium polyphosphate is particularly suitable for flame retardant treatment of the fireproof plugging module under a humid condition. For another example, the flame retardant is melamine, and it can be understood that melamine is a trimer of cyanamide, and that melamine releases a large amount of non-flammable nitrogen when being heated and decomposed, so as to isolate oxygen from contacting the fireproof plugging module, thereby improving the flame retardancy of the fireproof plugging module. Meanwhile, it should be noted that, because of releasing the non-flammable gas, melamine also plays a role of a foaming agent in preparing the weather-resistant fireproof plugging module, and can enable the fireproof plugging module to foam and expand to form a spongy carbonization layer under the condition of reaching the softening point, so that the fireproof plugging module can be further sealed, gas diffusion is prevented, external oxygen is prevented from diffusing to the surface of the fireproof plugging module, and the purpose of fireproof and heat insulation is further achieved. For another example, the flame retardant is pentaerythritol, it can be understood that the carbonizing agent can be esterified and dehydrated into carbon under the action of the dehydration catalyst, the carbide can also form a closed three-dimensional honeycomb-shaped carbonizing layer under the action of the inert gas decomposed by the foaming agent, the carbonizing layer can close the fireproof plugging module to prevent gas diffusion, and external oxygen is prevented from diffusing to the surface of the fireproof plugging module to achieve the purpose of fireproof and heat insulation. So, pentaerythritol is as the high polyol of a thermal stability, under the effect of this dehydration catalyst of ammonium polyphosphate, can esterify the dehydration and form the carbide bed to can play the sealing effect to fire prevention shutoff module, at the conflagration in-process, can prevent outside oxygen diffusion to the surface of fire prevention shutoff module, and then played the thermal-insulated effect of fire prevention, in addition, pentaerythritol's price is comparatively cheap, so, can practice thrift the cost of preparation fire prevention shutoff module. Certainly, the fire prevention shutoff module can also include dipentaerythritol, tripentaerythritol, dipentaerythritol, so, is coating the fire prevention shutoff module surface of fire prevention shutoff module can form better inflation carbonization zone when being heated to play better fire prevention heat-proof effect.
Furthermore, the flame retardant is a mixture of ammonium polyphosphate, melamine, aluminum hydroxide, magnesium hydroxide, pentaerythritol and zinc borate, wherein the mass ratio of the ammonium polyphosphate to the melamine to the aluminum hydroxide to the magnesium hydroxide to the pentaerythritol to the zinc borate is 1:3:2:1:1:2, and thus, the flame retardance of the fireproof plugging module can be better due to the adoption of the compounded flame retardant.
In order to improve the water resistance of the fireproof blocking module and prevent the fireproof blocking module from being affected by moisture, in one embodiment, the moisture-proof agent is silicone. It can be understood that the fireproof blocking module is easy to lose efficacy after being affected with damp, and further, the stable fireproof performance cannot be guaranteed. The moisture-proof agent is an auxiliary agent capable of improving the moisture resistance of the fireproof plugging module and obviously improving the water resistance of the fireproof plugging module. In this embodiment, the moisture-proof agent is a silicone, and further, the moisture-proof agent is silicone oil, so that the moisture-proof agent has high water resistance, and the fire-proof plugging module can be effectively prevented from weakening or losing the fire-proof performance due to moisture. Meanwhile, the silicone oil also has the functions of emulsification, foam stabilization and nucleation, namely the polyether polyol, the catalyst and the foaming agent can be more effectively mixed through the silicone oil, so that the compatibility of the foaming agent is improved; the foam is stabilized, namely, the foaming system has proper surface tension through the silicone oil, and a good bubble network structure is generated; nucleation, i.e., the size and fineness of the cells can be controlled by the silicone oil. Furthermore, the moisture-proof agent is dimethyl silicone oil, and 3-5 parts by mass of dimethyl silicone oil is added into the fireproof plugging module, so that the water resistance of the fireproof plugging module can be remarkably improved. It is understood that in other embodiments, the moisture resistant agent is not limited to silicone oil, but may also be at least one of aluminum stearate, calcium stearate, zinc stearate, or an amine salt. Aluminum stearate, calcium stearate, zinc stearate or amine salt can improve the water resistance of the fireproof plugging module, and further prevent the fireproof plugging module from affecting the fireproof performance due to damp.
In order to increase the curing speed of the fireproof blocking module, in one embodiment, the catalyst is at least one of dimethylcyclohexylamine, pentamethyldiethylenetriamine, triethylenediamine, dibutyltin dilaurate and dibutyltin diacetate. It can be understood that dimethylcyclohexylamine is a low viscosity medium activity amine catalyst, which has catalytic action on both gel and foam, and is a strong initial catalyst for foam reaction, and can be used as a single catalyst or used together with other catalysts. The pentamethyl diethylenetriamine is a high-efficiency catalyst for the polyurethane flexible foam, is mainly used in the formula of flexible foam products, has high catalytic activity and high foaming speed, and has high toughness and high bearing capacity. Triethylene diamine is a tertiary amine compound with a double heterocyclic structure, is mainly used as a gel catalyst of polyurethane foam plastics, has high activity and small dosage, has stronger catalytic action on gel reaction and foaming reaction, and particularly has stronger selectivity on the catalytic action of polyurethane and hydroxyl. Triethylene diamine has a unique chemical structure, is a cage-shaped compound, and is connected with three ethylene groups on two nitrogen atoms. The structure of this bicyclic molecule is very dense and symmetric. As can be seen from the structure, the N atom has no substituent group with great steric hindrance, and a pair of vacant electrons of the N atom is easy to access. In the foaming system, isocyanate firstly reacts with the isocyanate to form an active complex, the property of the complex is unstable, once a urethane bond is formed, the complex is liberated, and further catalysis is facilitated, and due to the reason, the triethylene diamine has extremely high catalytic activity for the reaction of an isocyanate group and an active hydrogen compound although the triethylene diamine is not a strong base. Dibutyl tin dilaurate is a catalyst with strong gelling properties that can be used with amine catalysts, such as dimethyl cyclohexylamine, for high speed production of high density structural foams. Dibutyltin dilaurate is also a heat stabilizer, which is beneficial for improving the thermal stability of the fireproof plugging module. Dibutyl tin diacetate is a gel catalyst, particularly suitable for deacetylated organosilicon products, and has the characteristic of higher catalytic speed than dibutyl tin dilaurate. In this embodiment, the catalyst is at least one of dimethylcyclohexylamine, pentamethyldiethylenetriamine, triethylenediamine, dibutyltin dilaurate and dibutyltin diacetate, and the curing speed of the fireproof plugging module can be remarkably increased and the industrialization efficiency can be greatly improved through the compatibility and synergy of the catalyst.
In one embodiment, the curing agent is at least one of aminoethylpiperazine, m-phenylenediamine, diaminodiphenylmethane, and triethylenetetramine. It is understood that a curing agent, also known as a hardener, curing agent or setting agent, is a substance or mixture that promotes or controls the curing reaction, and that the addition of a curing agent to the flameproof blocking module enables the flameproof blocking module to cure rapidlyAnd the fireproof plugging module can be quickly cured. The variety of the curing agent has great influence on the mechanical property, heat resistance, water resistance and corrosion resistance of the cured product. The aminoethyl piperazine can be cured at low temperature under a humid condition, and the aminoethyl piperazine has good color stability, good adhesive property, good chemical corrosion resistance and good film performance, namely excellent surface gloss, and can prevent the phenomena of amine blooming and water spots. Aminoethylpiperazine has better high temperature performance when used in thermal curing. The m-phenylenediamine is mainly used as a curing agent of epoxy resin, can be used for quickly curing and forming the fireproof plugging module, and has good heat resistance. The diaminodiphenylmethane has good heat resistance, chemical resistance and electrical property, high mechanical strength, and bending strength of 1190kg/cm2Compressive strength of 710kg/cm2Tensile strength of 550kg/cm2. The triethylene tetramine has low toxicity and good alkali resistance, and the product obtained by reacting the triethylene tetramine with polyisocyanate can be used as an epoxy resin curing agent to endow cured products with toughness. In this embodiment, the curing agent is at least one of aminoethylpiperazine, m-phenylenediamine, diaminodiphenylmethane, and triethylenetetramine. So, can make fire prevention shutoff module rapid prototyping, and can cure more fast, and then play better fire prevention shutoff effect when the high temperature inflation.
In order to improve the smoke suppression effect of the fireproof plugging module, in one embodiment, the fireproof plugging module further comprises the following components in parts by mass: 0.3 to 0.5 portion of smoke suppressant. It is understood that the smoke and toxic gases generated by the burning of plastics are the main culprits of death, and are one of the most dangerous and threatening harmful factors in fire. In addition, smoke greatly reduces the visibility of the fire scene even in places far away from the fire scene, and delays the time for extinguishing the fire and rescuing lives and properties. In this embodiment, the fireproof plugging module further comprises 0.3-0.5 part by weight of a smoke suppressant, and the smoke suppressant is added by a chemical method, so that the smoke amount of the plastic can be reduced, the smoke amount and toxic gas generated during plastic combustion can be reduced, the fireproof plugging module is prevented from generating a large amount of smoke and toxic gas during fire, and the smoke suppression effect of the fireproof plugging module is improved.
Further, the smoke suppressant is at least one of ferrocene, fumaric acid, molybdenum oxide and ammonium octamolybdate. It is understood that ferrocene is an iron compound and has a good smoke suppression effect, and the smoke suppression effect of ferrocene occurs mainly in a condensed phase for halogen-containing high polymers and mainly in a gas phase for non-halogen high polymers. Fumaric acid, also known as fumaric acid, corynic acid or lichenic acid, is a colorless, flammable crystal of carboxylic acids derived from butene. The fumaric acid as the smoke suppressant can change the cracking mode of the PU foam plastic, thereby achieving the effect of suppressing the generation of smoke. Molybdenum of the molybdenum trioxide and ammonium octamolybdate is hexavalent, and the oxidation state and coordination number of the molybdenum trioxide and ammonium octamolybdate are easy to change, so that the molybdenum trioxide and the ammonium octamolybdate can be used as a smoke suppressant. The molybdenum trioxide and the ammonium octamolybdate are both molybdenum compounds which are used as smoke suppressants, the molybdenum compounds act in a solid phase rather than a gas phase, the generation of a carbon layer is promoted and the smoke amount is reduced through a Lewis acid or a reduction coupling mechanism, and the molybdenum compounds have strong smoke suppression and carbon formation effects. Through experimental detection, when the content of the smoke suppressant is within the range of 0.5-50 parts per 100 parts of PVC, the smoke generation amount is reduced by 30-80%, and the oxygen index is improved by 10-20%. In the embodiment, the smoke suppressant is at least one of fumaric acid, molybdenum trioxide and ammonium octamolybdate, so that the fireproof blocking module has a better smoke suppression effect, and the smoke generation amount and the generation of toxic gases can be effectively reduced.
In order to improve the fireproof performance of the fireproof plugging module, in one embodiment, the fireproof plugging module further comprises the following components in parts by mass: 0.5 to 1 portion of pigment and filler. It is understood that in the production of fire-retardant coating, the pigment and filler is one of the main raw materials, which can develop color in the fire-retardant material to give hiding power to the coating film, and the addition of the pigment and filler can improve many physical and chemical properties of the fire-retardant material, such as improving fire-retardant property, mechanical strength, adhesion, permeability and weather resistance of the fire-retardant material. The intumescent fire-retardant coating contains less or even no inorganic pigment and filler, but a small amount of pigment and filler can enable the fire-retardant plugging module to continuously play a role in the middle and later stages of fire, so that a low-expansion-rate high-strength carbonized layer is formed, the foam layer is more compact and has better strength, and the fire-retardant performance of the intumescent fire-retardant coating is improved. In this embodiment, the fireproof blocking module further includes the following components in parts by mass: 0.5 to 1 portion of pigment and filler. Furthermore, the pigment filler is red iron oxide, so that the fireproof plugging module can form a low-expansion-rate high-strength carbonization layer, so that the foam layer is more compact and has better strength, the fireproof performance of the fireproof plugging module is improved, the service life of the fireproof plugging module is prolonged, and the frequent replacement is avoided.
In order to increase the plasticity of the fireproof blocking module, make the fireproof blocking module easier to process and form, and improve the environmental protection of the fireproof blocking module, in one embodiment, the plasticizer is at least one of ethylene glycol, ethylene glycol tetramethoxy phosphate and dioctyl phthalate. It is understood that ethylene glycol, due to its low molecular weight and active nature, can undergo esterification, etherification, alcoholization, oxidation, acetalization and dehydration reactions. The ethylene glycol can reduce the glass transition temperature of the polymer and has better plasticity. Meanwhile, the ethylene glycol can also be used as an antifreezing agent, so that the performance of the fireproof plugging module can be guaranteed under a low-temperature condition, and the weather resistance of the fireproof plugging module is further improved. The ethylene glycol tetramethoxy phosphate has double functions of flame retardance and plasticization. The ethylene glycol tetramethoxy phosphate can make the fire retardant realize non-halogenation, and the organic phosphorus system is mostly liquid substance at room temperature, which can increase the fluidity of the high polymer and reduce the softening temperature of the high polymer material. The plasticizing function can inhibit residues after combustion, and toxic gas and corrosive gas are less than halogen flame retardants, so that the fireproof plugging module has better environmental protection. The ethylene glycol tetramethoxyphosphate flame retardant has high efficiency, is suitable for transparent plastics, has little influence on light stability or light stabilizer action, has little corrosivity, can prevent the re-combustion of the flame-retardant material and does not increase or hardly increases the quality of the flame-retardant material. The dioctyl phthalate can enhance the plasticizing effect of the fireproof material, enhance the flexibility of the fireproof material and facilitate the processing. In the embodiment, the plasticizer is at least one of ethylene glycol, ethylene glycol tetramethoxy phosphate and dioctyl phthalate, so that the glass transition temperature of the polymer can be reduced, the plasticity is increased, the fireproof plugging module is easier to process and form, and the environmental protection performance of the fireproof plugging module is better.
In order to better understand the fireproof plugging module, the application also provides a preparation method of the fireproof plugging module, which comprises the following steps: providing compound polyether polyol, a flame retardant, low-temperature expanded graphite, a moisture-proof agent, a catalyst, a curing agent, a plasticizer and deionized water, wherein the mass ratio of the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water is (30-45): (5-15): (5-15): (3-5): (0.2-0.4): (15-25): (0.1-0.3): (0.2 to 0.5); mixing and stirring the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst and the deionized water, and then continuously stirring and adding the curing agent and the plasticizer to perform foaming and curing operation to obtain a foaming and curing mixture; carrying out extrusion molding operation on the foamed cured mixture to obtain a plugging module to be cut; and cutting the plugging module to be cut to obtain the fireproof plugging module.
The preparation method of the fireproof plugging module is simple, easy to operate, mild in preparation conditions and good in environmental protection, and the prepared fireproof plugging module is good in weather resistance, low-temperature expansion, easy to cut and free of slag falling during cutting.
In order to better understand the method for manufacturing the fire-blocking module according to the present invention, the method for manufacturing the fire-blocking module according to the present invention is further explained below, and the method for manufacturing the fire-blocking module according to an embodiment includes the following steps:
s100, providing compound polyether polyol, a flame retardant, low-temperature expanded graphite, a moisture-proof agent, a catalyst, a curing agent, a plasticizer and deionized water, wherein the mass ratio of the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water is (30-45): (5-15): (5-15): (3-5): (0.2-0.4): (15-25): (0.1-0.3): (0.2-0.5).
It can be understood that in the process of preparing the low-temperature quick curing fireproof plugging block, the selection of raw materials is crucial, and the fireproof plugging module which has good weather resistance and stability, is easy to cut, does not drop slag during cutting and can be quickly cured and expanded under the low-temperature condition can be prepared by providing the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water as the raw materials for preparing the low-temperature quick curing fireproof plugging block and then performing subsequent operations such as mixing and stirring.
In order to prepare the fireproof plugging module which has a better fireproof plugging effect, is easier to cut and does not drop slag during cutting, the mass ratio of the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water is (30-45): (5-15): (5-15): (3-5): (0.2-0.4): (15-25): (0.1-0.3): (0.2-0.5). The fireproof plugging module which has good weather resistance, expands at low temperature, is easy to cut and does not drop slag after being cut can be prepared by adopting the compatibility and synergism of the compounded polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water in the mass ratio.
S200, mixing and stirring the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst and the deionized water, and then adding the curing agent and the plasticizer while continuing stirring to perform foaming and curing operation to obtain a foaming and curing mixture.
It can be understood that the compounded polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst and the deionized water can be sufficiently and uniformly mixed by the mixing and stirring operation. In the foaming curing operation process, the curing agent and the plasticizer are added while stirring, so that a better curing and plasticizing effect can be achieved, the fireproof plugging module can be processed and molded more conveniently, and a foaming curing mixture can be obtained.
S300, carrying out extrusion forming operation on the foamed cured mixture to obtain the plugging module to be cut.
It will be appreciated that the plugging module to be cut can be obtained by placing the foamed matured mixture in an extruder and performing an extrusion operation.
S400, cutting the plugging module to be cut to obtain the fireproof plugging module.
It can be understood that, because most of the existing plugging materials on the market are standard sizes, in the installation process of products, the purpose of plugging can be achieved only by combining a plurality of products, if cutting is performed in the construction process, but flying floc or dust is easily generated in the cutting process, which affects the sanitation of the construction environment, and also may affect the health of constructors to a certain extent, in order to improve the construction efficiency and reduce the construction cost, and especially to achieve a good fireproof plugging effect, for example, in the step S140, the cutting mode is a pre-cutting mode, when the plugging block to be cut is cut, the block to be cut is not completely cut, is close to one side of the cutting bed, the plugging block to be cut is still bonded into a whole to form a bottom plate, and a plurality of pre-cut fireproof plugging blocks which have been cut are bonded on the same side of the bottom plate, every adjacent two be provided with the cutting clearance between the pre-cut fire prevention shutoff block, a plurality of position channels of keeping away have been seted up on the bottom plate, each keep away position channel one-to-one with each the cutting clearance intercommunication, further, each the width in cutting clearance equals, and is further, the bottom plate thickness is less than the thickness of pre-cut fire prevention shutoff block, so, the cutting obtains the quick curing fire prevention shutoff block of low temperature and can be the module of various sizes and specification, can easily make up or separate, can realize the hole of quick sealed various specifications through product self, has improved the efficiency of construction greatly, has reduced construction cost, especially can play good fire prevention shutoff effect.
In order to mix the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water more uniformly, in one embodiment, the mixing speed of the mixing operation is 450 to 550 revolutions per minute. Further, the stirring time of the mixing and stirring operation is 20 to 25 minutes.
In one embodiment, the foaming and curing operation is performed for 25 to 35 minutes. It can be understood that through foaming curing for 25-35 minutes, more cells are formed inside the fireproof plugging module, so that the fireproof plugging module is softer and more elastic, and can be attached to the holes more tightly when the holes are plugged, and a better fireproof plugging effect is achieved.
Example 1
Providing 3kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.5kg of low-temperature expanded graphite, 0.3kg of dimethyl silicone oil, 0.02kg of dimethylcyclohexylamine, 0.03kg of ferrocene and 0.05kg of iron oxide red, adding 3kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.5kg of low-temperature expanded graphite, 0.3kg of dimethyl silicone oil, 0.02kg of dimethylcyclohexylamine, 0.03kg of ferrocene and 0.05kg of iron oxide red into a reaction kettle, mixing and stirring for 20 minutes at a stirring speed of 450 revolutions per minute, adding 1.5kg of aminoethyl piperazine and 0.01kg of ethylene glycol while continuously stirring, and carrying out foaming and curing for 25 minutes to obtain a foaming and curing mixture. And then placing the foamed cured mixture into a cold extrusion molding machine for extrusion molding operation to obtain the plugging module to be cut. And cutting the to-be-cut plugging module in a pre-cutting mode to obtain the fireproof plugging module.
Example 2
Providing 4.5kg of compound polyether polyol, 1.5kg of ammonium polyphosphate, 1.5kg of low-temperature expanded graphite, 0.5kg of simethicone, 0.04kg of dimethylcyclohexylamine, 0.05kg of ferrocene and 0.1kg of iron oxide red, adding 4.5kg of compound polyether polyol, 1.5kg of ammonium polyphosphate, 1.5kg of low-temperature expanded graphite, 0.5kg of simethicone, 0.04kg of dimethylcyclohexylamine, 0.05kg of ferrocene and 0.1kg of iron oxide red into a reaction kettle, mixing and stirring at a stirring speed of 550 revolutions per minute for 25 minutes, and adding 2.5kg of aminoethyl piperazine and 0.03kg of ethylene glycol while stirring continuously for foaming and curing for 35 minutes to obtain a foaming and curing mixture. And then placing the foamed cured mixture into a cold extrusion molding machine for extrusion molding operation to obtain the plugging module to be cut. And cutting the to-be-cut plugging module in a pre-cutting mode to obtain the fireproof plugging module.
Example 3
Providing 4kg of compound polyether polyol, 1kg of ammonium polyphosphate, 1kg of low-temperature expanded graphite, 0.4kg of dimethyl silicone oil, 0.03kg of dimethyl cyclohexylamine, 0.04kg of ferrocene and 0.07kg of iron oxide red, adding 4kg of compound polyether polyol, 1kg of ammonium polyphosphate, 1kg of low-temperature expanded graphite, 0.4kg of dimethyl silicone oil, 0.03kg of dimethyl cyclohexylamine, 0.04kg of ferrocene and 0.07kg of iron oxide red into a reaction kettle, mixing and stirring for 22 minutes at a stirring speed of 500 revolutions per minute, adding 2.5kg of aminoethyl piperazine and 0.03kg of ethylene glycol while continuously stirring, and carrying out foaming and curing for 30 minutes to obtain a foaming and curing mixture. And then placing the foamed cured mixture into a cold extrusion molding machine for extrusion molding operation to obtain the plugging module to be cut. And cutting the to-be-cut plugging module in a pre-cutting mode to obtain the fireproof plugging module.
Example 4
Providing 4kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.5kg of melamine, 1kg of low-temperature expanded graphite, 0.4kg of dimethyl silicone oil, 0.03kg of dimethyl cyclohexylamine, 0.01kg of pentamethyl diethylenetriamine, 0.04kg of ferrocene and 0.07kg of iron oxide red, adding 4kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.5kg of melamine, 1kg of low-temperature expanded graphite, 0.4kg of dimethyl silicone oil, 0.03kg of dimethyl cyclohexylamine, 0.01kg of pentamethyl diethylenetriamine, 0.04kg of ferrocene and 0.07kg of iron oxide red into a reaction kettle, mixing and stirring at a stirring speed of 500 revolutions per minute for 22 minutes, and adding 2.5kg of aminoethyl piperazine and 0.03kg of ethylene glycol while continuously stirring for foaming and curing for 30 minutes to obtain a foaming and curing mixture. And then placing the foamed cured mixture into a cold extrusion molding machine for extrusion molding operation to obtain the plugging module to be cut. And cutting the to-be-cut plugging module in a pre-cutting mode to obtain the fireproof plugging module.
Example 5
Providing 3kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.5kg of melamine, 0.5kg of low-temperature expanded graphite, 0.3kg of dimethyl silicone oil, 0.02kg of dimethyl cyclohexylamine, 0.01kg of dibutyl tin dilaurate, 0.03kg of ferrocene and 0.05kg of iron oxide red, adding 3kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.5kg of melamine, 0.5kg of low-temperature expanded graphite, 0.3kg of dimethyl silicone oil, 0.02kg of dimethyl cyclohexylamine, 0.01kg of dibutyl tin dilaurate, 0.03kg of ferrocene and 0.05kg of iron oxide red into a reaction kettle, carrying out mixing and stirring operation for 21 minutes at a stirring speed of 450 revolutions per minute, and adding 1.5kg of aminoethyl piperazine and 0.01kg of ethylene glycol while continuously stirring for foaming and curing operation for 26 minutes to obtain a foaming and curing mixture. And then placing the foamed cured mixture into a cold extrusion molding machine for extrusion molding operation to obtain the plugging module to be cut. And cutting the to-be-cut plugging module in a pre-cutting mode to obtain the fireproof plugging module.
Example 6
Providing 3.2kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.1kg of pentaerythritol, 0.1kg of zinc borate, 0.5kg of low-temperature expandable graphite, 0.3kg of dimethyl silicone oil, 0.02kg of dimethylcyclohexylamine, 0.01kg of pentamethyldiethylenetriamine, 0.03kg of molybdenum oxide, 0.01kg of ammonium octamolybdate and 0.05kg of iron oxide red, adding 3.2kg of compound polyether polyol, 0.5kg of ammonium polyphosphate, 0.1kg of pentaerythritol, 0.1kg of zinc borate, 0.5kg of low-temperature expandable graphite, 0.3kg of dimethyl silicone oil, 0.02kg of dimethylcyclohexylamine, 0.01kg of pentamethyldiethylenetriamine, 0.03kg of molybdenum oxide, 0.01kg of octamolybdatonium and 0.05kg of iron oxide red into a reaction kettle, carrying out a mixing and stirring operation at a stirring speed of 450 rpm for 20 minutes, adding 1.0kg of ammonia diamine, 0.5kg of m-phenylenediamine and 0.01kg of tetramethylethylene glycol phosphate while continuing stirring, carrying out a curing for 25 minutes, a foamed cured mixture is obtained. And then placing the foamed cured mixture into a cold extrusion molding machine for extrusion molding operation to obtain the plugging module to be cut. And cutting the to-be-cut plugging module in a pre-cutting mode to obtain the fireproof plugging module.
The fireproof plugging module provided by the invention is tested according to the performance test standard of GB 23864-2009, and the performance test results of the fireproof plugging module of each embodiment are shown in Table 1.
TABLE 1
According to the test results in table 1, the fireproof plugging modules of examples 1 to 6 have high elasticity and softness, good apparent density, good fire-resistant integrity and fire-resistant heat-insulating property, and good water resistance, alkali resistance, acid resistance, humidity resistance, freezing cycle resistance and expansion property, especially the fire-resistant heat-insulating property, humidity resistance and expansion property are far higher than the national standard, and can rapidly expand to closely adhere to the plugged holes in the fireproof plugging process, thereby playing a good role in plugging. Moreover, the excellent fire-resistant and heat-insulating properties make the fire-resistant and flame-retardant performances of the fire-resistant plugging modules of examples 1 to 6 far superior to those of the existing fire-resistant plugging modules. In addition, the excellent moisture and heat resistance enables the fireproof plugging modules of examples 1 to 6 to have better weather resistance, and can effectively prevent the fireproof plugging modules from being affected with damp due to wind, sunshine and the like to cause unstable or invalid product performance. It should be noted that the fire-proof blocking module of example 6 has the most excellent physical and chemical properties, because the components and mass ratio adopted in example 6 are more comprehensive and reasonable than those of other examples. In addition, the fireproof plugging modules of embodiments 1 to 6 are easier to cut, and the slag falling condition does not occur during cutting, which indicates that the structure of the fireproof plugging module is more stable.
Compared with the prior art, the invention has at least the following advantages:
1. the fireproof plugging module is prepared by taking the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent and the plasticizer as main raw materials, and the compound polyether polyol is matched with other components for synergism, so that the fireproof plugging module has better impact resistance, and better water resistance, oil resistance and low-temperature resistance. Meanwhile, the moisture-proof performance of the fireproof plugging module can be effectively improved by adding the moisture-proof agent, and the problem that the fireproof performance of the fireproof plugging module is unstable or the performance of the fireproof plugging module fails after being damped by wind, sunlight and the like is solved, so that the fireproof plugging module has good weather resistance. In addition, the fireproof plugging module adopts low-toxicity or non-toxic components, so that the environment-friendly performance is better.
2. The fireproof plugging module disclosed by the invention has the advantages that the low-temperature expanded graphite is compatible with other components to increase the effect, and a tough carbon layer is formed on the surface of polyether polyol, so that the fireproof protection effect of the fireproof plugging module is enhanced. Meanwhile, due to the addition of the low-temperature expanded graphite, the initial expansion temperature of the fireproof plugging module is greatly reduced, so that the fireproof plugging module can be quickly cured and expanded at low temperature, the fireproof protection effect can be achieved at the initial stage of a fire disaster, and the life and property safety is protected to the maximum extent.
3. According to the invention, polyether polyols with different functionalities are crosslinked and connected in a compounding manner, so that a stable three-dimensional network structure is formed, and the structure of the fireproof plugging module has high stability. Simultaneously, because the synergism of curing agent, plasticizer and dampproof agent, can further strengthen the stability of fire prevention shutoff module, make fire prevention shutoff module easily cut, can be applicable to the hole of various specifications, moreover because the promotion of fire prevention shutoff module structural stability makes fire prevention shutoff module can not fall the sediment when the cutting to be favorable to improving the cutting efficiency of fire prevention shutoff module and the fire behavior after the cutting.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The fireproof blocking module is characterized by comprising the following components in parts by mass:
2. the fire blocking module of claim 1, wherein the formulated polyether polyol comprises a di-functional polyether polyol and a tri-functional polyether polyol.
3. The fire blocking module of claim 1, wherein the flame retardant is at least one of ammonium polyphosphate, melamine, aluminum hydroxide, magnesium hydroxide, pentaerythritol, and zinc borate.
4. The flameproof plugging module of claim 1, wherein the moisture barrier is a silicone based.
5. The fire blocking module of claim 1, wherein the catalyst is at least one of dimethylcyclohexylamine, pentamethyldiethylenetriamine, triethylenediamine, dibutyltin dilaurate, and dibutyltin diacetate.
6. The fire blocking module of claim 1, wherein the curing agent is at least one of aminoethylpiperazine, m-phenylenediamine, diaminodiphenylmethane, and triethylenetetramine.
7. The fireproof plugging module of claim 1, further comprising the following components in parts by mass:
0.3 to 0.5 portion of smoke suppressant.
8. The flameproof plugging module of claim 7, wherein the smoke suppressant is at least one of ferrocene, fumaric acid, molybdenum oxide, and ammonium octamolybdate.
9. The fireproof plugging module of claim 1, further comprising the following components in parts by mass:
0.5 to 1 portion of pigment and filler.
10. A preparation method of a fireproof plugging module is characterized by comprising the following steps:
providing compound polyether polyol, a flame retardant, low-temperature expanded graphite, a moisture-proof agent, a catalyst, a curing agent, a plasticizer and deionized water, wherein the mass ratio of the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst, the curing agent, the plasticizer and the deionized water is (30-45): (5-15): (5-15): (3-5): (0.2-0.4): (15-25): (0.1-0.3): (0.2 to 0.5);
mixing and stirring the compound polyether polyol, the flame retardant, the low-temperature expanded graphite, the moisture-proof agent, the catalyst and the deionized water, and then continuously stirring and adding the curing agent and the plasticizer to perform foaming and curing operation to obtain a foaming and curing mixture;
carrying out extrusion molding operation on the foamed cured mixture to obtain a plugging module to be cut;
and cutting the plugging module to be cut to obtain the fireproof plugging module.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108774388A (en) * | 2018-06-27 | 2018-11-09 | 广东黑卫防火技术有限公司 | Low temperature rapid aging fireproof blocking block and preparation method thereof |
| CN109867948A (en) * | 2019-02-01 | 2019-06-11 | 杭州晶索建材有限公司 | A kind of spring high-efficient fire-proof plugging sheet material and preparation method thereof |
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2020
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Application publication date: 20210326 |