High-inflaming-retarding organosilicone sponge material and preparation method thereof

A technology of silicon sponge and bulk material, applied in the field of high flame retardant silicone sponge material and its preparation, can solve the problems of no flame retardant properties, environmental and human harm, poor foam strength, etc., and achieve excellent flame retardant properties Effect, good electrical insulation, high foaming rate effect

Inactive Publication Date: 2016-11-09
SHANDONG SHIP TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the foaming materials used in the field of wall hole sealing are polyurethane foam and silicone foam. Polyurethane foam has the problem of poor flame retardancy, while existing silicone foam has problems Poor foam strength, poor tear resistance, easy to crush, and s

Method used

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  • High-inflaming-retarding organosilicone sponge material and preparation method thereof
  • High-inflaming-retarding organosilicone sponge material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In this example, component A and component B are calculated based on 100 parts by mass.

[0063] Preparation of component A: 21 parts of double-ended hydroxyl polydimethylsiloxane with a viscosity of 5000 mPa·s, 35 parts of double-ended vinyl polydimethylsiloxane with a viscosity of 3500 mPa·s, 15 parts of methyl Phenyl silicone resin, 2.5 parts of fumed silica, 17 parts of quartz powder, 3 parts of single-layer graphene, and 0.45 parts of carbon black are pre-mixed, and put into a three-roller mill for 10-20 minutes of shear mixing and dispersion at room temperature. Put it into a planetary mixer, and then put 6 parts of hydrogen-containing silicone oil with a hydrogen content of 1.2% and 0.05 parts of tetramethyltetravinylcyclotetrasiloxane into it, and slowly raise the temperature to 70~80°C while stirring, and continue Stir and mix for 60-90 minutes, vacuumize to devolatilize and eliminate air bubbles, and then A component can be obtained.

[0064]Preparation of co...

Embodiment 2

[0066] In this example, component A and component B are calculated based on 100 parts by mass.

[0067] Preparation of component A: 21 parts of double-ended hydroxyl polydimethylsiloxane with a viscosity of 5000 mPa·s, 35 parts of double-ended vinyl polydimethylsiloxane with a viscosity of 3500 mPa·s, 15 parts of vinyl Methyl silicone resin, 13.5 parts of light calcium carbonate, 3 parts of precipitated silica, 6 parts of single-layer graphene, and 0.45 parts of carbon black are pre-mixed, and put into a three-roller mill at room temperature for shear mixing and dispersion for 10-20 Minutes, transfer it to a planetary mixer, then put 6 parts of hydrogen-containing silicone oil with a hydrogen content of 1.5% and 0.05 parts of tetramethyltetravinylcyclotetrasiloxane into it, and slowly heat up to 70~80°C under stirring ,Continue to stir and mix for 60~90 minutes, vacuumize to devolatilize and eliminate air bubbles, and you can get A component.

[0068] Preparation of component...

Embodiment 3

[0071] In this example, component A and component B are calculated based on 100 parts by mass.

[0072] Preparation of component A: 28 parts of double-ended hydroxyl polydimethylsiloxane with a viscosity of 8000 mPa·s, 20 parts of double-ended vinyl polydimethylsiloxane with a viscosity of 4500 mPa·s, 18 parts of methyl silicone Resin, 4 parts of mica powder, 15.5 parts of quartz powder, 8 parts of double-layer graphene, and 0.45 parts of carbon black are pre-mixed, put into a three-roller mill, shear, mix and disperse for 10 to 20 minutes at room temperature, and transfer it to planetary stirring Put 6 parts of hydrogen-containing silicone oil with a hydrogen content of 1.2% and 0.05 parts of tetramethyltetravinyl cyclotetrasiloxane into the container, and slowly heat up to 70~80°C under stirring, and continue to stir and mix for 60~90 minutes , Vacuumize the volatilization and eliminate the air bubbles to get the A component.

[0073] Preparation of component B: 30 parts of...

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Abstract

The invention discloses a high-inflaming-retarding organosilicone sponge material and a preparation method thereof. The high-inflaming-retarding organosilicone sponge material is composed of a component A and a component B, the component A comprises double-end hydroxyl polysiloxane, double-end vinyl-containing polysiloxane, hydrosilicone oil, silicon resin, reinforcing filler, a crosslinking inhibitor, graphene and carbon black, and the component B comprises double-end hydroxyl polysiloxane, double-end vinyl-containing polysiloxane, hydroxyl silicone oil, graphene, silicon resin, reinforcing filler, zinc oxide and a catalyst. The component A and the component B are mixed according to the mass ratio being 1:1, curing is carried out for 2-10 minutes at the temperature of 13 DEG C to 35 DEG C, a sponge with a certain foaming ratio can be generated, the high-inflaming-retarding organosilicone sponge material is high in compression strength and excellent in permanent compression deformation resistance and inflaming retarding performance and is extinguished once the material is separated from a fire, no harmful gas is generated during combustion, and the material is widely applied to the fields of building hole plugging, car seats, sofas, mattresses and the like.

Description

technical field [0001] The invention relates to a highly flame-retardant organosilicon sponge material and a preparation method thereof, belonging to the technical field of flame-retardant polymer materials. Background technique [0002] The high flame retardant silicone sponge material is prepared by the condensation reaction of silicon-hydrogen bonds and silicon hydroxyl groups to generate hydrogen foaming, and at the same time, the addition reaction of silicon-hydrogen bonds and vinyl groups increases the strength of the material, and the two participate in the cross-linking reaction together. . The prepared organosilicon sponge has excellent flame-retardant properties, is extinguished immediately after leaving the fire, has good resistance to permanent compression deformation, high foaming rate, good thermal stability, and does not generate toxic gas when burned. At present, most of the foaming materials used in the field of wall hole sealing are polyurethane foam and s...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/06C08L83/05C08L83/04C08K13/02C08K3/04C08K3/36C08K3/22C08J9/00
CPCC08L83/04C08J9/00C08J2383/04C08J2383/06C08J2483/04C08J2483/06C08K2201/014C08L83/06C08L2201/02C08L2203/14C08L2205/02C08L2205/025C08L2205/035C08L2205/05C08L2312/08C08K13/02C08K3/04C08K3/36C08K2003/2296
Inventor 刘增杰汤飞曾庆铭王新波李涛
Owner SHANDONG SHIP TECH RES INST
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