CN101368080A - Expansion flame-proof organosilicon fluid sealant and method of producing the same - Google Patents
Expansion flame-proof organosilicon fluid sealant and method of producing the same Download PDFInfo
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- CN101368080A CN101368080A CNA2008102003263A CN200810200326A CN101368080A CN 101368080 A CN101368080 A CN 101368080A CN A2008102003263 A CNA2008102003263 A CN A2008102003263A CN 200810200326 A CN200810200326 A CN 200810200326A CN 101368080 A CN101368080 A CN 101368080A
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Abstract
The invention relates to an expansion flame retardant organosilicon sealant and a manufacturing method thereof. The sealant comprises the following components by weight portion: 100 portions of Alpha, Omega-dihydroxyl polysiloxane; 5 to 30 portions of plasticizer; 20 to 100 portions of filler; 50 to 150 portions of inorganic flame retardant; 5 to 30 portions of expansion fire retardant; 1 to 30 portions of cross-linking agent; 0.1 to 1 portion of catalyzer; 1 to 5 portions of viscosity increaser and 0.1 to 5 portions of inorganic pigment. The manufacturing method comprises the following steps: the Alpha, Omega-dihydroxyl polysiloxane, the filler, the inorganic flame retardant and the expansion fire retardant are dehydrated at 80 to 150 DEG C in a vacuum triple motion agitator, and are mixed for 0.5 to 2 hours before the mixture is cooled to the room temperature; the silane cross-linking agent, the viscosity increaser, the catalyzer and the plasticizer are added and mixed for 0.5 to 2 hours. The expansion flame retardant organosilicon sealant has excellent mechanical property, fire retardancy, adhesion and storage stability, which is primarily used as a sealant in devices that cables are threaded through on watercrafts as well as used for closing off various openings formed in the way that cables, air conduits, oil tubes and so on pass through walls, bulkheads, floor slabs, decks and so on in buildings or power supply systems.
Description
Technical field
The present invention relates to a kind of expandable flame retardant fireproof seal gum and manufacture method thereof, belong to the fire retardant material technical field.
Background technology
Cable has destroyed its original protection integrity, as watertightness, fire line when running through boats and ships bulkhead, deck." the safety fuse effect " that cable laying constituted, in case have an accident, consequence will be very serious, directly threatens the safety of boats and ships, even cause the sinking of boats and ships.
Silicone sealant has excellent weather, warm, ultraviolet ray and ozone ageing performance thereof, can be used for cable penetration boats and ships bulkhead, deck, runs through the fire-retardant sealing and fixing behind building wall, the floor.Chinese patent CN1438289A, CN1688287A, CN1865383A disclose the flame-proof silicone sealant of aspects such as being respectively applied for building, electronics.The shipboard cable flame retardant sealant not only will make whole sealing device reach A peculiar to vessel-60 fire resistance rating, also must have watertight, air-tightness, and the fireproof seal gum that only has expansion character could reach these requirements simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of expansion flame-proof organosilicon fluid sealant.
Another object of the present invention provides a kind of preparation method of expansion flame-proof organosilicon fluid sealant.
The objective of the invention is to be achieved through the following technical solutions.
A kind of expansion flame-proof organosilicon fluid sealant, the recipe ingredient of sealing glue is counted by weight:
α, 100 parts of alpha, omega-dihydroxy polysiloxane
5～30 parts in softening agent
20～100 parts of fillers
50～150 parts of inorganic combustion inhibitors
5～35 parts of expanding fire retardants
1～30 part of linking agent
0.1～1 part of catalyzer
1～5 part of tackifier
0.1～5 part of mineral dye
Described α, alpha, omega-dihydroxy polysiloxane are α, alpha, omega-dihydroxy polydimethyl siloxane, α, and alpha, omega-dihydroxy gathers di-ethyl siloxane, α, at least a in the poly-diphenyl siloxane of alpha, omega-dihydroxy.
Described linking agent is methyltrimethoxy silane, Union carbide A-162, methyl tributanoximo silane, at least a in the vinyl tributanoximo silane.
Described catalyzer is at least a in dibutyl tin dilaurate, di-n-octyl two lauric acid tin, butyl (tetra) titanate and the iso-butyl titanate.
Described tackifier are at least a in γ-An Bingjisanyiyangjiguiwan, γ-An Bingjisanjiayangjiguiwan, the N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan.
Described softening agent is branched chain type type silicone oil, α, at least a in ω-dimethoxy polydimethylsiloxane, the dimethyl silicone oil.
Described filler is at least a in thermal silica, calcene, silica powder, silicon powder, the kaolin.
Described inorganic combustion inhibitor is an aluminium hydroxide, magnesium hydroxide, zinc subcarbonate, at least a in the zinc borate.Described expanding fire retardant is at least a in polyphosphoric acid amine, the expanded graphite.
Described α, alpha, omega-dihydroxy polysiloxane viscosity in the time of 25 ℃ is 500～100,000mPas; Described expansion flame-proof organosilicon fluid sealant has high volumetric expansion, and when meeting fire, its volume can be expanded to 3～10 times of original volume; Described expansion flame-proof organosilicon fluid sealant has high flame retardant resistance, presses the evaluation of GB/T2048-1996 method, and flame retardant resistance reaches the V-0 level.
A kind of manufacture method that is used for expansion flame-proof organosilicon fluid sealant, this method has following technological process: with α, 100 parts of alpha, omega-dihydroxy polysiloxane, 20～100 parts of fillers, 50～150 parts of inorganic combustion inhibitors and expanding fire retardant add in the vacuum planetary mixer for 5～30 parts, in 80～150 ℃ of temperature, vacuum tightness is-0.06～-0.095MPa, dehydration blend 0.5～2 hour, be cooled to room temperature, with 1～30 part of linking agent, 1～5 part of tackifier, 0.1～1 part of catalyzer, 5～30 parts in softening agent and mineral dye add in the vacuum planetary mixer for 0.1～5 part, vacuum tightness is-0.06～-0.095MPa, blend 0.5～2 hour promptly gets expansion flame-proof organosilicon fluid sealant.
Mineral dye of the present invention is a certain class material such as carbon black, lead-chrome yellow, barba hispanica, iron oxide red, red lead etc., and these all do not have influence on the performance to glue of the present invention, but can improve the apparent of glue, add different mineral dyes, and the color of glue is also different.
The main performance index of expansion flame-proof organosilicon fluid sealant of the present invention: sag is zero by the GB/T13477 test, extrudability is 2.3～2.8 by the GB/16776 test, flame retardant resistance is pressed GB/I2048-1966 test and is the FV-0 level, all reaches and surpasses state specified standards.
Characteristics of the present invention are to adopt α, and the alpha, omega-dihydroxy polysiloxane is base-material, introduces inorganic anti-flaming material and expansion flame-retardant material, makes the silicone fireproof seal gum of and fire protection flame retarding pollution-free to base material.
The present invention has following advantage:
1, adopt inorganic and expanding fire retardant is used, when fire takes place, can expand more than 3 times, form fine and close heat insulation carbide, all holes of tight seal perforated holes, stop the diffusion of flame, dense smoke and toxic gas fully, effectively support personnel and property safety.The product fire resistance is good, and its fire retardant performance reaches the FV-0 level of GB/T2408-1996.
2, adopt neutral curing system,, base material is had good cohesive force base material non-corrosivenesss such as concrete, glass, stone material and metals.
3, product easy construction, weather, aging resistance brilliance.
Expansion flame-proof organosilicon fluid sealant of the present invention is mainly used in the cable penetration device on the boats and ships and makes sealing material, can be used for also that shutoff is various in buildings or the power supply system runs through, pass the various openings that wall, bulkhead, floor, deck etc. form as cable, airduct, oil pipe etc.
Embodiment
Below by embodiment the present invention is carried out concrete description, be necessary to be pointed out that at this following examples only are used for the present invention is further specified, can not be interpreted as limiting the scope of the invention.
Embodiment 1
With viscosity 100, the α of 000mPas, the α of 90 parts of alpha, omega-dihydroxy polydimethyl siloxanes, viscosity 500mPas, 15 parts of 10 parts of alpha, omega-dihydroxy polydimethyl siloxanes, 30 parts of calcenes, 40 parts in aluminium hydroxide, 20 parts of zinc subcarbonates, polyphosphoric acid amine add in the vacuum planetary mixer in 80 ℃ of temperature, and vacuum tightness be-0.06～-0.095MPa, the blend 1 hour of dewatering; Be cooled to room temperature, with 8 parts of methyltrimethoxy silanes, 1 part of γ-An Bingjisanyiyangjiguiwan, 0.2 part of dibutyl tin dilaurate, 10 parts of dimethyl silicone oils, α, ω-10 parts of dimethoxy polydimethylsiloxanes, mineral dye red iron oxide add in the vacuum planetary mixer for 5 parts, vacuum tightness is-0.06～-0.095MPa, blend 1.5 hours, obtain expansion flame-proof organosilicon fluid sealant, product is known clearly in the performance test structure of different states and is shown in Table 1.
Embodiment 2
With viscosity is 50, the α of 000mPas, 20 parts of 100 parts of the poly-di-ethyl siloxane of alpha, omega-dihydroxy, 10 parts of thermal silicas, 20 parts of kaolin, 80 parts of magnesium hydroxides, 20 parts of zinc borates, expanded graphite add in the vacuum planetary mixer in 100 ℃ of temperature, and vacuum tightness be-0.06～-0.095MPa, the blend 1 hour of dewatering; Be cooled to room temperature, 14 parts of Union carbide A-162s, 2 parts of γ-An Bingjisanjiayangjiguiwans, 0.6 part of butyl (tetra) titanate, 10 parts of branched chain type silicone oil, mineral dye carbon black are added in the vacuum planetary mixer for 0.5 part, vacuum tightness is-0.06～-0.095MPa, blend 2 hours, obtain expansion flame-proof organosilicon fluid sealant, product is known clearly in the performance test structure of different states and is shown in Table 1.
Embodiment 3
With viscosity is 50, the α of 000mPas, the α of 60 parts of the poly-di-ethyl siloxane of alpha, omega-dihydroxy, viscosity 2000mPas, 25 parts of 40 parts of alpha, omega-dihydroxy polydimethyl siloxanes, 40 parts of calcenes, 20 parts of silica powders, 80 parts of magnesium hydroxides, 20 parts of zinc subcarbonates, expanded graphite add in the vacuum planetary mixer in 120 ℃ of temperature, and vacuum tightness be-0.06～-0.095MPa, the blend 1.5 hours of dewatering; Be cooled to room temperature, with 18 parts in methyl three Diacetylmonoxime silane, 2 parts of γ-An Bingjisanjiayangjiguiwans, 0.5 part of iso-butyl titanate, 8 parts of dimethyl silicone oils, mineral dye iron oxide blue add in the vacuum planetary mixer for 3 parts, vacuum tightness is-0.06～-0.095MPa, blend 1.5 hours, obtain expansion flame-proof organosilicon fluid sealant, product is known clearly in the performance test structure of different states and is shown in Table 1.
Embodiment 4
With viscosity is 20, the α of 000mPas, the α of 80 parts of alpha, omega-dihydroxy polydimethyl siloxanes, viscosity 3000mPas, 30 parts of 20 parts of alpha, omega-dihydroxy polydimethyl siloxanes, 80 parts of calcenes, 100 parts in aluminium hydroxide, 20 parts of zinc subcarbonates, expanded graphite add in the vacuum planetary mixer in 120 ℃ of temperature, and vacuum tightness be-0.06～-0.095MPa, the blend 1 hour of dewatering; Be cooled to room temperature, 15 parts in methyl three Diacetylmonoxime silane, 5 parts of vinyl tributanoximo silanes, N-β-aminoethyl-3 parts of γ-An Bingjisanjiayangjiguiwans, 0.3 part of dibutyl tin dilaurate, 5 parts of dimethyl silicone oils, mineral dye carbon black are added in the vacuum planetary mixer for 0.5 part, vacuum tightness is-0.06～-0.095MPa, blend 1.5 hours, acquisition expansion flame-proof organosilicon fluid sealant and product are known clearly in the performance test structure of different states and are shown in Table 1.
Embodiment 5
With viscosity is 10, the α of 000mPas, 5 parts of 100 parts of alpha, omega-dihydroxy polydimethyl siloxanes, 60 parts of calcenes, 20 parts of silicon powders, 140 parts in aluminium hydroxide, 25 parts of expanded graphites, polyphosphoric acid amine add in the vacuum planetary mixer in 120 ℃ of temperature, and vacuum tightness be-0.06～-0.095MPa, the blend 1 hour of dewatering; Be cooled to room temperature, 18 parts in methyl three Diacetylmonoxime silane, 5 parts of vinyl tributanoximo silanes, N-β-aminoethyl-3 parts of γ-An Bingjisanjiayangjiguiwans, 0.5 part in di-n-octyl two lauric acid tin, 5 parts of dimethyl silicone oils, mineral dye lead-chrome yellow are added in the vacuum planetary mixer for 2 parts, vacuum tightness is-0.06～-0.095MPa, blend 1 hour, obtain expansion flame-proof organosilicon fluid sealant, product is known clearly in the performance test structure of different states and is shown in Table 1.
Table 1 product performance test result of the present invention
Claims (10)
1. expansion flame-proof organosilicon fluid sealant is characterized in that the recipe ingredient of sealing glue is counted by weight:
α, 100 parts of alpha, omega-dihydroxy polysiloxane
5～30 parts in softening agent
20～100 parts of fillers
50～150 parts of inorganic combustion inhibitors
5～30 parts of expanding fire retardants
1～30 part of linking agent
0.1～1 part of catalyzer
1～5 part of tackifier
0.1～5 part of mineral dye
2. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described α, the alpha, omega-dihydroxy polysiloxane is α, alpha, omega-dihydroxy polydimethyl siloxane, α, alpha, omega-dihydroxy gathers di-ethyl siloxane, α, at least a in the poly-diphenyl siloxane of alpha, omega-dihydroxy.
3. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described linking agent is methyltrimethoxy silane, Union carbide A-162, methyl tributanoximo silane, at least a in the vinyl tributanoximo silane.
4. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described catalyzer is at least a in dibutyl tin dilaurate, di-n-octyl two lauric acid tin, butyl (tetra) titanate and the iso-butyl titanate.
5. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described tackifier are at least a in γ-An Bingjisanyiyangjiguiwan, γ-An Bingjisanjiayangjiguiwan, the N-β-aminoethyl-γ-An Bingjisanjiayangjiguiwan.
6. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described softening agent is branched chain type silicone oil, α, at least a in ω-dimethoxy polydimethylsiloxane, the dimethyl silicone oil.
7. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described filler is at least a in thermal silica, calcene, silica powder, silicon powder, the kaolin.
8. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described inorganic combustion inhibitor is an aluminium hydroxide, magnesium hydroxide, zinc subcarbonate, at least a in the zinc borate; Described expanding fire retardant is at least a in polyphosphoric acid amine, the expanded graphite.
9. by the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that described α, alpha, omega-dihydroxy polysiloxane viscosity in the time of 25 ℃ is 500～100,000mPas; Described expansion flame-proof organosilicon fluid sealant has high volumetric expansion, and when meeting fire, its volume can be expanded to 3～10 times of original volume; Described expansion flame-proof organosilicon fluid sealant has high flame retardant resistance, presses the evaluation of GB/T2048-1996 method, and flame retardant resistance reaches the V-0 level.
10. manufacture method that is used for the described expansion flame-proof organosilicon fluid sealant of claim 1, it is characterized in that this method has following technological process: with α, 100 parts of alpha, omega-dihydroxy polysiloxane, 20～100 parts of fillers, 50～150 parts of inorganic combustion inhibitors and expanding fire retardant add in the vacuum planetary mixer for 5～30 parts, in 80～150 ℃ of temperature, vacuum tightness is-0.06～-0.095MPa, dehydration blend 0.5～2 hour, be cooled to room temperature, with 1～30 part of linking agent, 1～5 part of tackifier, 0.1～1 part of catalyzer, 5～30 parts in softening agent and mineral dye add in the vacuum planetary mixer for 0.1～5 part, vacuum tightness is-0.06～-0.095MPa, blend 0.5～2 hour promptly gets expansion flame-proof organosilicon fluid sealant.
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Application publication date: 20090218 |