Expansion flame-proof organosilicon fluid sealant and method of producing the same

A technology of intumescent flame retardant and intumescent flame retardant, which is applied in the field of flame retardant materials, can solve problems such as ship sinking and threat to ship safety, and achieve the effects of ensuring personnel and property safety, good fire resistance and convenient construction.

Inactive Publication Date: 2009-02-18
陈栋梁 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "fuse effect" formed by cable laying, once an accident occurs, the consequences will be

Method used

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  • Expansion flame-proof organosilicon fluid sealant and method of producing the same

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

[0036] Combine 90 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 100,000mPa·s, 10 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 500mPa·s, and 30 parts of colloidal calcium carbonate , 40 parts of aluminum hydroxide, 20 parts of basic zinc carbonate, 15 parts of amine polyphosphate into the vacuum planetary mixer at a temperature of 80 ℃, vacuum degree -0.06 ~ -0.095MPa, dehydration and blending for 1 hour; cooling to room temperature, 8 parts of methyl trimethoxy silane, 1 part of γ-aminopropyl triethoxy silane, 0.2 parts of dibutyl tin dilaurate, 10 parts of dimethicone, α, ω-dimethoxy polydimethyl Add 10 parts of base siloxane and 5 parts of inorganic pigment iron oxide red into the vacuum planetary mixer, the vacuum degree is -0.06~-0.095MPa, and blend for 1.5 hours to obtain intumescent flame-retardant silicone sealant. The performance of the product in different states The test structure is shown in Table 1.

Example Embodiment

[0037] Example 2

[0038] Combine 100 parts of α,ω-dihydroxy polydiethylsiloxane with a viscosity of 50,000 mPa·s, 10 parts of fumed white carbon black, 20 parts of kaolin, 80 parts of magnesium hydroxide, 20 parts of zinc borate, and 20 parts of expanded graphite. Add parts to a vacuum planetary mixer at a temperature of 100°C, a vacuum degree of -0.06~-0.095MPa, dehydration and blend for 1 hour; cool to room temperature, add 14 parts of methyltriethoxysilane, γ-aminopropyltrimethoxy Add 2 parts of silane, 0.6 parts of butyl titanate, 10 parts of branched silicone oil, and 0.5 parts of inorganic pigment carbon black into the vacuum planetary mixer, the vacuum degree is -0.06~-0.095MPa, and blend for 2 hours to obtain the intumescent flame retardant organic For silicon sealant, the performance test structure of the product in different states is shown in Table 1.

Example Embodiment

[0039] Example 3

[0040] Combine 60 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 50,000mPa·s, 40 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 2000mPa·s, and 40 parts of colloidal calcium carbonate. Part, 20 parts of quartz powder, 80 parts of magnesium hydroxide, 20 parts of basic zinc carbonate, 25 parts of expanded graphite are put into a vacuum planetary mixer at a temperature of 120°C, a vacuum degree of -0.06~-0.095MPa, dehydration and blending for 1.5 hours; Cool to room temperature, add 18 parts of methyl ketoxime silane, 2 parts of γ-aminopropyl trimethoxysilane, 0.5 parts of isobutyl titanate, 8 parts of dimethyl silicone oil, and 3 parts of inorganic pigment iron oxide blue. In the vacuum planetary mixer, the vacuum degree is -0.06~-0.095MPa, and the blending is 1.5 hours to obtain the intumescent flame-retardant silicone sealant. The performance test structure of the product in different states is shown in Table 1.

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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 [0001] The invention relates to an intumescent flame-retardant fireproof sealant and a manufacturing method thereof, belonging to the technical field of flame-retardant materials. Background technique [0002] When the cable runs through the bulkhead and deck of the ship, its original protective integrity, such as watertightness and fire resistance, is destroyed. The "fuse effect" formed by cable laying, once an accident occurs, the consequences will be very serious, directly threatening the safety of the ship, and even leading to the sinking of the ship. [0003] Silicone sealants have excellent resistance to weather, heat, ultraviolet rays and ozone aging, and can be used for flame-retardant sealing and fixing after cables penetrate ship bulkheads and decks, and penetrate building walls and floors. Chinese patents CN1438289A, CN1688287A, and CN1865383A disclose flame-retardant silicone sealants used in construction, electronics, and the like. The flame-re...

Claims

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Application Information

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IPC IPC(8): C09J183/06C09J9/00C09K3/10
Inventor 陈栋梁洪玲
Owner 陈栋梁
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