CN112853770A - Fire-resistant flame-retardant heat-insulating material, fire-resistant flame-retardant heat-insulating explosion-proof cloth and preparation method - Google Patents
Fire-resistant flame-retardant heat-insulating material, fire-resistant flame-retardant heat-insulating explosion-proof cloth and preparation method Download PDFInfo
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Abstract
The invention provides a fire-resistant flame-retardant heat-insulating material, fire-resistant flame-retardant heat-insulating explosion-proof cloth and a preparation method thereof, wherein the fire-resistant flame-retardant heat-insulating material comprises the following substances in parts by mass: 10-50% of hydroxyl-terminated polybutadiene, 10-50% of expanded graphite, 1-5% of ferric acetylacetonate, 1-5% of dibutyltin dilaurate, 2-8% of diphenylmethane diisocyanate, 1-5% of a composite burning rate catalyst, 2-10% of glycerol, 1-5% of a silane coupling agent, 5-25% of diphenyl isodecyl phosphate, 6-24% of melamine polyphosphate, 1-8% of triphenyl phosphate, 8-20% of a silicon-magnesium composite flame retardant and 1-5% of an anti-aging agent, wherein the fire-resistant, flame-retardant and anti-explosion cloth comprises glass fiber cloth and two fire-resistant, flame-retardant and heat-insulating layers which are respectively adhered to two side faces of the glass fiber cloth.
Description
Technical Field
The invention belongs to the technical field of fire-resistant flame-retardant heat-insulating materials, and particularly relates to a fire-resistant flame-retardant heat-insulating material, fire-resistant flame-retardant heat-insulating explosion-proof cloth and a preparation method thereof.
Background
The protection of fire-resistant and flame-retardant cables widely used in the market at present mainly comprises the following methods:
1. the fire-resistant flame-retardant grade of the cable is improved from the past B2 grade to the present B1 grade, the halogen flame-retardant grade is improved to the halogen-free flame-retardant grade, and the cable can deform after being combusted and cannot be used. For example, far east cable limited of Jiangsu has fire ratings of B1, B2. There are halogen and halogen-free flame retardant cables.
2. The KSM-HTV high-temperature-resistant fireproof flame-retardant winding belt is formed by compounding silicon rubber and glass fiber cloth serving as base materials in a stretching and pressing manner; the material has the functions of inflaming retarding and fire resistance in a fire at the temperature of about 300 ℃, the material can be burnt on fire when the temperature exceeds 300 ℃, and the protected cable is not protected by the action of heat radiation, so that the fire can be blocked for a short time only in the initial stage of fire to slow down the spread and expansion of the fire.
3. G60-3 intumescent perchloroethylene fire-retardant coating. The paint uses polyvinyl chloride resin and chlorinated rubber as base materials, and fire retardant components, pigments, plasticizers and the like are added. The fire-proof honeycomb heat-insulating layer is characterized in that the honeycomb heat-insulating layer expands when meeting fire to form a uniform and compact honeycomb heat-insulating layer, has a heat-insulating and fire-proof effect, is suitable for protecting objects with high fire hazard risk such as cables and the like, but is only suitable for initial fire and slowing down the spread of the fire. And when the temperature in the middle and later period of the fire reaches more than 300 ℃, the effect is not achieved.
The fire-proof flame-retardant materials have the defects of low fire-proof flame-retardant temperature, no heat insulation effect and the like.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a fire-resistant, fire-retardant, heat-insulating material, a fire-resistant, fire-retardant, heat-insulating explosion-proof fabric, and a method for producing the same, which have good weather resistance, high temperature resistance, and good flame retardancy and heat insulation properties.
The invention provides a fire-resistant flame-retardant heat-insulating material which is characterized by comprising the following components: the fire-resistant flame-retardant heat-insulating material is characterized by comprising the following components:
hydroxyl-terminated polybutadiene, the mass fraction is 10% -50%;
10-50% of expanded graphite by mass;
1 to 5 percent of ferric acetylacetonate
1-5% of dibutyltin dilaurate in mass fraction;
2-8% of diphenylmethane diisocyanate;
the composite burning rate catalyst has the mass fraction of 1-5%;
2-10% of glycerol by mass;
1-5% of silane coupling agent by mass;
5-25% of diphenyl isodecyl phosphate;
melamine polyphosphate with the mass fraction of 6-24 percent;
triphenyl phosphate, the mass fraction is 1% -8%;
the silicon-magnesium composite flame retardant accounts for 8-20% of the mass fraction;
the anti-aging agent has the mass fraction of 1-5%.
Iron acetylacetonate Fe (AA)3And dibutyltin dilaurate (T-12) are both catalysts. Diphenylmethane diisocyanate (MDI) is used as a curing agent. The flame retardant system comprises four flame retardants, namely diphenyl isodecyl phosphate (DPDP), melamine polyphosphate (FR-NR), triphenyl phosphate (TPP) and silicon magnesium composite flame retardants.
Further, the fire-resistant flame-retardant heat-insulating material provided by the invention can also have the following characteristics: the silicon-magnesium composite flame retardant comprises magnesium hydroxide and a silicon flame retardant, wherein the ratio of the magnesium hydroxide to the silicon flame retardant is as follows: 3-5 parts by mass of magnesium hydroxide and 2-8 parts by mass of silicon flame retardant.
The invention also provides a fire-resistant flame-retardant heat-insulating explosion-proof cloth, which is characterized by comprising the following components: glass cloth, and two layers of fire-resistant flame-retardant heat-insulating layers respectively adhered to two sides of the glass cloth, wherein the fire-resistant flame-retardant heat-insulating layer is made of the fire-resistant flame-retardant heat-insulating material according to claim 1. The glass fiber cloth is used for explosion prevention.
The invention also provides a preparation method of the fire-resistant flame-retardant heat-insulating explosion-proof cloth, which is characterized by comprising the following steps of: step 1, respectively weighing hydroxyl-terminated polybutadiene, expanded graphite, ferric acetylacetonate, diphenylmethane diisocyanate, a composite burning rate catalyst, glycerol, dibutyltin dilaurate, a silane coupling agent, diphenyl isodecyl phosphate, melamine polyphosphate, triphenyl phosphate, a silicon-magnesium composite flame retardant and an anti-aging agent according to the proportion of claim 1, and uniformly stirring after mixing to obtain the fire-resistant, flame-retardant and heat-insulating material;
and 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method.
Further, the preparation method provided by the invention can also have the following characteristics: and 2, soaking and hanging the glass fiber cloth in the sizing material by adopting a gum dipping method, namely conveying the glass fiber cloth to a trough through a roller, soaking and hanging the glass fiber cloth in the trough, quantitatively extruding the glass fiber cloth by the roller, then curing the glass fiber cloth in a high-temperature tunnel, and rolling the glass fiber cloth.
Further, the preparation method provided by the invention can also have the following characteristics: in the step 3, the specific process of coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method is as follows: and (3) quantitatively conveying the rubberized glass cloth in the step (2) through a roller, then quantitatively extruding the refractory flame-retardant heat-insulating material prepared in the step (1) by a die to tape-cast the rubberized glass cloth, and finally, entering a high-temperature tunnel for curing and rolling.
The invention has the following advantages:
the base rubber of the fireproof flame-retardant heat-insulating material is hydroxyl-terminated polybutadiene (HTPB), and the HTPB has excellent fast inflammability, high heat value and no residue after crosslinking; four flame retardants, namely diphenyl isodecyl phosphate (DPDP), melamine polyphosphate (FR-NR), triphenyl phosphate (TPP) and a silicon-magnesium composite flame retardant, form a flame retardant system, so that the flame retardant temperature can reach 350 ℃, and the flame retardant system can respectively play a role from 200 ℃ to 350 ℃; when the temperature exceeds 350 ℃, the HTPB burns rapidly, and the expanded graphite (C-80) expands immediately to isolate heat; because the expanded process of expanded graphite is endothermic reaction, and HTPB burning is quick, therefore the heat of HTPB burning can be absorbed by expanded graphite, even the inside fire of cable also can not produce the injury to the cable, therefore the cable of cladding no matter is inside to fire or the outside conflagration emergence can not receive the injury. The fire-resistant flame-retardant heat-insulating material disclosed by the invention has the advantages of high temperature resistance, flame retardance, good heat insulation and good weather resistance.
The fire-resistant flame-retardant heat-insulating explosion-proof cloth provided by the invention has the advantages that the fire-resistant flame-retardant heat-insulating layer made of the fire-resistant flame-retardant heat-insulating material is adhered to both sides of the explosion-proof cloth, so that the fire-resistant flame-retardant heat-insulating explosion-proof cloth is good in weather resistance, high temperature resistance, flame retardance and heat insulation.
Drawings
FIG. 1 is a schematic structural diagram of a fire-resistant, fire-retardant, heat-insulating and explosion-proof fabric in an embodiment of the invention;
FIG. 2 is a flow chart of a simple apparatus for preparing a fire-resistant flame-retardant heat-insulating explosion-proof cloth according to an embodiment of the present invention.
In fig. 2, reference numeral 1 is a feeding cloth roll, 2 is a finished cloth roll, 3 is a trough, and 4 is a high-temperature tunnel.
Detailed Description
In order to make the technical means, creation features, achievement objects and effects of the present invention easy to understand, the following embodiments are specifically described with reference to the accompanying drawings.
< example one >
In this embodiment, the fire resistant, fire retardant and thermal insulating material comprises the following components: 20% of hydroxyl-terminated polybutadiene, 18% of expanded graphite, 3% of ferric acetylacetonate, 1% of dibutyltin dilaurate, 8% of diphenylmethane diisocyanate, 5% of composite burning rate catalyst, 5% of glycerol, 1% of silane coupling agent, 5% of diphenyl isodecyl phosphate, 12% of melamine polyphosphate, 1% of triphenyl phosphate, 20% of silicon-magnesium composite flame retardant and 1% of anti-aging agent. The silicon-magnesium composite flame retardant comprises 5 parts by mass of magnesium hydroxide and 2 parts by mass of silicon flame retardant, and is prepared by compounding 5 parts by mass of magnesium hydroxide and 2 parts by mass of silicon flame retardant. The components are mixed and stirred uniformly to obtain the fireproof flame-retardant heat-insulating material.
As shown in fig. 1, the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth comprises a glass cloth 10 and two layers of fire-resistant, flame-retardant and heat-insulating layers 20 respectively adhered to two sides of the glass cloth. The fire-resistant fire-retardant heat-insulating layer is made of the fire-resistant fire-retardant heat-insulating material.
The preparation method of the fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises the following steps:
And 2, soaking and hanging the glass fiber cloth in the glue material by adopting a glue dipping method. Specifically, as shown in fig. 2, in this step, the glass fiber cloth is a cloth to be rolled, and the glass fiber cloth after being glued is a finished cloth roll. The glass fiber cloth 1 is conveyed to a material groove 3 through a roller, the material groove 3 is soaked with the hanging glue, and the glass fiber cloth 2 after the glue is hung is obtained after the glass fiber cloth enters a high-temperature tunnel 4 for solidification and rolling after the glass fiber cloth is quantitatively extruded by the roller.
And 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method. Specifically, as shown in fig. 2, the glass fiber cloth coated with glue in this step is a feeding cloth roll, and the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth is a finished cloth roll. And (3) quantitatively conveying the rubberized glass cloth 1 in the step (2) through a roller, then quantitatively extruding the fireproof flame-retardant heat-insulating material prepared in the step (1) by a die to cast the rubberized glass cloth, and finally, entering a high-temperature tunnel 4 for curing and rolling to obtain the fireproof flame-retardant heat-insulating explosion-proof cloth 2.
< example two >
In this embodiment, the fire resistant, fire retardant and thermal insulating material comprises the following components: 20% of hydroxyl-terminated polybutadiene, 22% of expanded graphite, 5% of ferric acetylacetonate, 3% of dibutyltin dilaurate, 2% of diphenylmethane diisocyanate, 1% of composite burning rate catalyst, 2% of glycerol, 3% of silane coupling agent, 7% of diphenyl isodecyl phosphate, 24% of melamine polyphosphate, 1% of triphenyl phosphate, 8% of silicon-magnesium composite flame retardant and 2% of anti-aging agent. The silicon-magnesium composite flame retardant comprises 4 parts by mass of magnesium hydroxide and 5 parts by mass of silicon flame retardant, and is prepared by compounding 4 parts by mass of magnesium hydroxide and 5 parts by mass of silicon flame retardant. The components are mixed and stirred uniformly to obtain the fireproof flame-retardant heat-insulating material.
The fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises glass fiber cloth and two layers of fire-resistant flame-retardant heat-insulating layers adhered to two side surfaces of the glass fiber cloth. The fire-resistant fire-retardant heat-insulating layer is made of the fire-resistant fire-retardant heat-insulating material.
The preparation method of the fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises the following steps:
And 2, soaking and hanging the glass fiber cloth in the glue material by adopting a glue dipping method. Specifically, as shown in fig. 2, in this step, the glass fiber cloth is a cloth to be rolled, and the glass fiber cloth after being glued is a finished cloth roll. The glass fiber cloth 1 is conveyed to a material groove 3 through a roller, the material groove 3 is soaked with the hanging glue, and the glass fiber cloth 2 after the glue is hung is obtained after the glass fiber cloth enters a high-temperature tunnel 4 for solidification and rolling after the glass fiber cloth is quantitatively extruded by the roller.
And 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method. Specifically, as shown in fig. 2, the glass fiber cloth coated with glue in this step is a feeding cloth roll, and the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth is a finished cloth roll. And (3) quantitatively conveying the rubberized glass cloth 1 in the step (2) through a roller, then quantitatively extruding the fireproof flame-retardant heat-insulating material prepared in the step (1) by a die to cast the rubberized glass cloth, and finally, entering a high-temperature tunnel 4 for curing and rolling to obtain the fireproof flame-retardant heat-insulating explosion-proof cloth 2.
< example three >
In this embodiment, the fire resistant, fire retardant and thermal insulating material comprises the following components: 10% of hydroxyl-terminated polybutadiene, 50% of expanded graphite, 1% of ferric acetylacetonate, 1% of dibutyltin dilaurate, 2% of diphenylmethane diisocyanate, 1% of composite burning rate catalyst, 2% of glycerol, 5% of silane coupling agent, 5% of diphenyl isodecyl phosphate, 6% of melamine polyphosphate, 8% of triphenyl phosphate, 8% of silicon-magnesium composite flame retardant and 1% of anti-aging agent. The silicon-magnesium composite flame retardant comprises 3 parts by mass of magnesium hydroxide and 8 parts by mass of silicon flame retardant, and is prepared by compounding 3 parts by mass of magnesium hydroxide and 8 parts by mass of silicon flame retardant. The components are mixed and stirred uniformly to obtain the fireproof flame-retardant heat-insulating material.
The fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises glass fiber cloth and two layers of fire-resistant flame-retardant heat-insulating layers adhered to two side surfaces of the glass fiber cloth. The fire-resistant fire-retardant heat-insulating layer is made of the fire-resistant fire-retardant heat-insulating material.
The preparation method of the fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises the following steps:
And 2, soaking and hanging the glass fiber cloth in the glue material by adopting a glue dipping method. Specifically, as shown in fig. 2, in this step, the glass fiber cloth is a cloth to be rolled, and the glass fiber cloth after being glued is a finished cloth roll. The glass fiber cloth 1 is conveyed to a material groove 3 through a roller, the material groove 3 is soaked with the hanging glue, and the glass fiber cloth 2 after the glue is hung is obtained after the glass fiber cloth enters a high-temperature tunnel 4 for solidification and rolling after the glass fiber cloth is quantitatively extruded by the roller.
And 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method. Specifically, as shown in fig. 2, the glass fiber cloth coated with glue in this step is a feeding cloth roll, and the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth is a finished cloth roll. And (3) quantitatively conveying the rubberized glass cloth 1 in the step (2) through a roller, then quantitatively extruding the fireproof flame-retardant heat-insulating material prepared in the step (1) by a die to cast the rubberized glass cloth, and finally, entering a high-temperature tunnel 4 for curing and rolling to obtain the fireproof flame-retardant heat-insulating explosion-proof cloth 2.
< example four >
In this embodiment, the fire resistant, fire retardant and thermal insulating material comprises the following components: 20 percent of hydroxyl-terminated polybutadiene, 20 percent of expanded graphite, 1 percent of ferric acetylacetonate, 2 percent of dibutyltin dilaurate, 3 percent of diphenylmethane diisocyanate, 1 percent of composite burning rate catalyst, 10 percent of glycerol, 2 percent of silane coupling agent, 25 percent of diphenyl isodecyl phosphate, 6 percent of melamine polyphosphate, 1 percent of triphenyl phosphate, 8 percent of silicon-magnesium flame retardant and 1 percent of age resister. The silicon-magnesium composite flame retardant comprises 5 parts by mass of magnesium hydroxide and 8 parts by mass of silicon flame retardant, and is prepared by compounding 5 parts by mass of magnesium hydroxide and 8 parts by mass of silicon flame retardant. The components are mixed and stirred uniformly to obtain the fireproof flame-retardant heat-insulating material.
The fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises glass fiber cloth and two layers of fire-resistant flame-retardant heat-insulating layers adhered to two side surfaces of the glass fiber cloth. The fire-resistant fire-retardant heat-insulating layer is made of the fire-resistant fire-retardant heat-insulating material.
The preparation method of the fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises the following steps:
And 2, soaking and hanging the glass fiber cloth in the glue material by adopting a glue dipping method. Specifically, as shown in fig. 2, in this step, the glass fiber cloth is a cloth to be rolled, and the glass fiber cloth after being glued is a finished cloth roll. The glass fiber cloth 1 is conveyed to a material groove 3 through a roller, the material groove 3 is soaked with the hanging glue, and the glass fiber cloth enters a high-temperature tunnel 4 for solidification and rolling after being quantitatively extruded by the roller, so that a cloth roll 2 after the hanging glue is obtained.
And 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method. Specifically, as shown in fig. 2, the glass fiber cloth coated with glue in this step is a feeding cloth roll, and the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth is a finished cloth roll. And (3) quantitatively conveying the rubberized glass cloth 1 in the step (2) through a roller, then quantitatively extruding the fireproof flame-retardant heat-insulating material prepared in the step (1) by a die to cast the rubberized glass cloth, and finally, entering a high-temperature tunnel 4 for curing and rolling to obtain the fireproof flame-retardant heat-insulating explosion-proof cloth 2.
< example five >
In this embodiment, the fire resistant, fire retardant and thermal insulating material comprises the following components: the flame retardant comprises, by mass, 50% of hydroxyl-terminated polybutadiene, 10% of expanded graphite, 1% of ferric acetylacetonate, 5% of dibutyltin dilaurate, 2% of diphenylmethane diisocyanate, 1% of a composite burning rate catalyst, 2% of glycerol, 1% of a silane coupling agent, 5% of diphenyl isodecyl phosphate, 8% of melamine polyphosphate, 1% of triphenyl phosphate, 11% of a silicon-magnesium flame retardant and 3% of an anti-aging agent. The silicon-magnesium composite flame retardant comprises 4 parts by mass of magnesium hydroxide and 6 parts by mass of silicon flame retardant, and is prepared by compounding 4 parts by mass of magnesium hydroxide and 6 parts by mass of silicon flame retardant. The components are mixed and stirred uniformly to obtain the fireproof flame-retardant heat-insulating material.
The fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises glass fiber cloth and two layers of fire-resistant flame-retardant heat-insulating layers adhered to two side surfaces of the glass fiber cloth. The fire-resistant fire-retardant heat-insulating layer is made of the fire-resistant fire-retardant heat-insulating material.
The preparation method of the fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises the following steps:
And 2, soaking and hanging the glass fiber cloth in the glue material by adopting a glue dipping method. Specifically, as shown in fig. 2, in this step, the glass fiber cloth is a cloth to be rolled, and the glass fiber cloth after being glued is a finished cloth roll. The glass fiber cloth 1 is conveyed to a material groove 3 through a roller, the material groove 3 is soaked with the hanging glue, and the glass fiber cloth 2 after the glue is hung is obtained after the glass fiber cloth enters a high-temperature tunnel 4 for solidification and rolling after the glass fiber cloth is quantitatively extruded by the roller.
And 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method. Specifically, as shown in fig. 2, the glass fiber cloth coated with glue in this step is a feeding cloth roll, and the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth is a finished cloth roll. And (3) quantitatively conveying the rubberized glass cloth 1 in the step (2) through a roller, then quantitatively extruding the fireproof flame-retardant heat-insulating material prepared in the step (1) by a die to cast the rubberized glass cloth, and finally, entering a high-temperature tunnel 4 for curing and rolling to obtain the fireproof flame-retardant heat-insulating explosion-proof cloth 2.
< example six >
In this embodiment, the fire resistant, fire retardant and thermal insulating material comprises the following components: 27% of hydroxyl-terminated polybutadiene, 20% of expanded graphite, 1% of ferric acetylacetonate, 1% of dibutyltin dilaurate, 5% of diphenylmethane diisocyanate, 3% of composite burning rate catalyst, 2% of glycerol, 2% of silane coupling agent, 16% of diphenyl isodecyl phosphate, 6% of melamine polyphosphate, 4% of triphenyl phosphate, 8% of silicon-magnesium composite flame retardant and 5% of anti-aging agent. The silicon-magnesium composite flame retardant comprises 5 parts by mass of magnesium hydroxide and 2 parts by mass of silicon flame retardant, and is prepared by compounding 5 parts by mass of magnesium hydroxide and 2 parts by mass of silicon flame retardant. The components are mixed and stirred uniformly to obtain the fireproof flame-retardant heat-insulating material.
As shown in fig. 1, the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth comprises a glass cloth 10 and two layers of fire-resistant, flame-retardant and heat-insulating layers 20 respectively adhered to two sides of the glass cloth. The fire-resistant fire-retardant heat-insulating layer is made of the fire-resistant fire-retardant heat-insulating material.
The preparation method of the fire-resistant flame-retardant heat-insulating explosion-proof cloth comprises the following steps:
And 2, soaking and hanging the glass fiber cloth in the glue material by adopting a glue dipping method. Specifically, as shown in fig. 2, in this step, the glass fiber cloth is a cloth to be rolled, and the glass fiber cloth after being glued is a finished cloth roll. The glass fiber cloth 1 is conveyed to a material groove 3 through a roller, the material groove 3 is soaked with the hanging glue, and the glass fiber cloth 2 after the glue is hung is obtained after the glass fiber cloth enters a high-temperature tunnel 4 for solidification and rolling after the glass fiber cloth is quantitatively extruded by the roller.
And 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method. Specifically, as shown in fig. 2, the glass fiber cloth coated with glue in this step is a feeding cloth roll, and the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth is a finished cloth roll. And (3) quantitatively conveying the rubberized glass cloth 1 in the step (2) through a roller, then quantitatively extruding the fireproof flame-retardant heat-insulating material prepared in the step (1) by a die to cast the rubberized glass cloth, and finally, entering a high-temperature tunnel 4 for curing and rolling to obtain the fireproof flame-retardant heat-insulating explosion-proof cloth 2.
< Experimental example >
When the cable is used, the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth is cut according to the diameter of the cable to be protected, and the cut fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth completely covers the cable and is fixed by the binding belt.
The fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth prepared in the five embodiments is cut according to the diameter of a cable to be protected, the cut fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth completely covers the cable and is fixed by a binding belt, and then a combustion experiment is performed on the cable covered with the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth. The fire-resistant flame-retardant heat-insulating explosion-proof cloth prepared in the five examples is subjected to weather resistance experiments and aging experiments.
Experiments prove that the flame-retardant temperature of the flame-retardant cable can reach more than 350 ℃, and after the flame-retardant cable burns at the temperature of more than 350 ℃, the cable wrapped by the flame-retardant, heat-insulating and explosion-proof cloth is not damaged.
A large number of experiments prove that the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth can be used at the temperature of-40-80 ℃, which shows that the fire-resistant, flame-retardant, heat-insulating and explosion-proof cloth has good weather resistance.
Experiments prove that the fireproof flame-retardant heat-insulating explosion-proof cloth can be used for more than 15 years under outdoor conditions and can be used for more than 20 years under indoor or buried conditions.
The fire-resistant flame-retardant heat-insulating material, the fire-resistant flame-retardant heat-insulating explosion-proof cloth and the preparation method are not limited to the scope of the specific embodiments. The above description is only a basic description of the present invention, and any equivalent changes made according to the technical solution of the present invention should fall within the protection scope of the present invention.
Claims (6)
1. The fire-resistant flame-retardant heat-insulating material is characterized by comprising the following components:
hydroxyl-terminated polybutadiene, the mass fraction is 10% -50%;
10-50% of expanded graphite by mass;
1 to 5 percent of ferric acetylacetonate
1-5% of dibutyltin dilaurate in mass fraction;
2-8% of diphenylmethane diisocyanate;
the composite burning rate catalyst has the mass fraction of 1-5%;
2-10% of glycerol by mass;
1-5% of silane coupling agent by mass;
5-25% of diphenyl isodecyl phosphate;
melamine polyphosphate with the mass fraction of 6-24 percent;
triphenyl phosphate, the mass fraction is 1% -8%;
the silicon-magnesium composite flame retardant accounts for 8-20% of the mass fraction;
the anti-aging agent has the mass fraction of 1-5%.
2. The method of claim 1, wherein:
the silicon-magnesium composite flame retardant comprises magnesium hydroxide and a silicon flame retardant, wherein the ratio of the magnesium hydroxide to the silicon flame retardant is as follows: 3-5 parts by mass of magnesium hydroxide and 2-8 parts by mass of silicon flame retardant.
3. A fire-resistant flame-retardant heat-insulating explosion-proof cloth is characterized by comprising:
glass cloth, and two layers of fire-resistant flame-retardant heat-insulating layers respectively adhered to two sides of the glass cloth, wherein the fire-resistant flame-retardant heat-insulating layer is made of the fire-resistant flame-retardant heat-insulating material according to claim 1.
4. A method for preparing the fire-resistant flame-retardant heat-insulating explosion-proof cloth as claimed in claim 3, which is characterized by comprising the following steps:
step 1, respectively weighing hydroxyl-terminated polybutadiene, expanded graphite, ferric acetylacetonate, diphenylmethane diisocyanate, a composite burning rate catalyst, glycerol, dibutyltin dilaurate, a silane coupling agent, diphenyl isodecyl phosphate, melamine polyphosphate, triphenyl phosphate, a silicon-magnesium composite flame retardant and an anti-aging agent according to the proportion of claim 1, and uniformly stirring after mixing to obtain the fire-resistant, flame-retardant and heat-insulating material;
step 2, soaking and hanging the glass fiber cloth in the glue material by adopting a glue dipping method;
and 3, coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method.
5. The method of claim 4, wherein:
and 2, soaking and hanging the glass fiber cloth in the sizing material by adopting a gum dipping method, namely conveying the glass fiber cloth to a trough through a roller, soaking and hanging the glass fiber cloth in the trough, quantitatively extruding the glass fiber cloth by the roller, then curing the glass fiber cloth in a high-temperature tunnel, and rolling the glass fiber cloth.
6. The method of claim 4, wherein:
in the step 3, the specific process of coating the two sides of the rubberized glass fiber cloth in the step 2 with the fireproof flame-retardant heat-insulating material prepared in the step 1 by adopting an extrusion casting method is as follows: and (3) quantitatively conveying the rubberized glass cloth in the step (2) through a roller, then quantitatively extruding the refractory flame-retardant heat-insulating material prepared in the step (1) by a die to tape-cast the rubberized glass cloth, and finally, entering a high-temperature tunnel for curing and rolling.
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| CN202110022855.4A CN112853770A (en) | 2021-01-08 | 2021-01-08 | Fire-resistant flame-retardant heat-insulating material, fire-resistant flame-retardant heat-insulating explosion-proof cloth and preparation method |
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| CN114479431A (en) * | 2021-12-20 | 2022-05-13 | 上海航天化工应用研究所 | Meltable flame-retardant layer of solid rocket engine, preparation method and application thereof |
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