Preparation method for novel high temperature resisting organic fire prevention heat insulating material

A heat-insulating material and high-temperature-resistant technology, which is applied in the field of preparation of new high-temperature-resistant organic fire-proof and heat-insulating materials, can solve the problems of no high-temperature-resistant organic fire-proof and heat-insulating materials, and achieve the effects of stable size, easy decoration, and long fire-resistant time

Inactive Publication Date: 2009-09-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The novelty search results of domestic and foreign patents and literature show that there is no research report on the preparation of high-temperature-resistant organic fire-proof and heat-insulating materials by compounding organic silicon resin and alumina micropowder.

Method used

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  • Preparation method for novel high temperature resisting organic fire prevention heat insulating material
  • Preparation method for novel high temperature resisting organic fire prevention heat insulating material
  • Preparation method for novel high temperature resisting organic fire prevention heat insulating material

Examples

Experimental program
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specific example 1

[0041] 1. Polymethyl silicone resin SAR-9 (produced by Shanghai Resin Factory, colorless uniform transparent liquid, solvent is toluene, solid content 51%, viscosity is 13-50mPa·s) and alumina micropowder according to 33; 67 After the mass ratio (the ratio after desolventizing toluene) is mixed, they are placed in a constant temperature oven at 120° C. and kept warm for 10 hours.

[0042] 2. Put the pre-pressed coated powder into a specific heating mold while it is hot, and set the heating and pressure-holding molding process system as follows: raise the temperature to 120°C and keep it for 0.5 hours, and no axial pressure is applied during this process; Heat at 150°C for 1.5 hours while applying an axial pressure of 25 MPa, which is the molding pressure; keep the molding pressure constant, raise the temperature to 180°C and hold for 1 hour, and finally raise the temperature to 200°C for 0.5 hours.

[0043] 3. After releasing the pressure and demoulding, put the molded materia...

specific example 2

[0046] 1. After the silicone resin (Dow Corning Silicone Resin SR249 in the United States) and the alumina micropowder are mixed according to the mass ratio of 26:74, an appropriate amount of toluene is added to mix the two evenly, and then placed in a constant temperature oven at 120°C and kept for 5 hours.

[0047] 2. Put the pre-pressed coated powder into a specific heating mold while it is hot, and set the heating and pressure-holding molding process system as follows: raise the temperature to 120°C and keep it for 0.5 hours, and no axial pressure is applied during this process; Heat to 150°C, hold for 1.5 hours, and apply 30MPa axial pressure at the same time, the pressure is the molding pressure; keep the molding pressure constant, raise the temperature to 180°C and hold for 1 hour, and finally rise to 200°C for 0.5 hours.

[0048] 3. After releasing the pressure and demoulding, put the molded material into a constant temperature oven at 250°C and treat it for 6 hours to ...

specific example 3

[0051] 1. Polymethyl silicone resin SAR-9 (produced by Shanghai Resin Factory, colorless uniform transparent liquid, solvent is toluene, solid content 51%, viscosity is 13-50mPa s) and alumina micropowder according to 35; 65 After the mass ratio (the ratio after desolventizing toluene) is mixed, they are placed in a constant temperature oven at 120° C. and kept warm for 10 hours.

[0052] 2. Put the pre-pressed coated powder into a specific heating mold while it is hot, and set the heating and pressure-holding molding process system as follows: raise the temperature to 120°C and keep it for 0.5 hours, and no axial pressure is applied during this process; Heat at 150°C for 1.5 hours while applying an axial pressure of 25 MPa, which is the molding pressure; keep the molding pressure constant, raise the temperature to 180°C and hold for 1 hour, and finally raise the temperature to 200°C for 0.5 hours.

[0053] 3. After releasing the pressure and demoulding, put the molded materia...

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Abstract

The invention provides a preparation method for novel high temperature resisting organic fire prevention heat insulating material. The preparation method comprises the following steps: mixing an organic silicon resin and alumina micropowder according to the mass ratio of 25-35:75-65, adding an organic solvent so as to make the raw materials be evenly mixed, adding the mixture into a 110 to 130 DEG C constant temperature oven and performing heating preservation for 3 to 12 hours so as to remove the solvent, transferring the mixture into a heating die while the mixture is still hot, carrying out the forming according to a staged temperature rise die stamping process system, and adding the material into a constant temperature oven at 200 to 250 DEG C after decompression and die ejection and carrying out the treatment for 5 to 10 hours. The prepared organic fire prevention heat insulating material has the advantages of conventional inorganic and organic fire prevention materials. The material shows the characteristics of resin material and has enough mechanical strength at a room temperature; and the material is converted into ceramic material at a high temperature, still meets the requirement of enough mechanical strength, and has stable external dimensions without deformation in the heating process. The material has a simple preparation process, and can be used for making covers and protecting cases meeting various requirements on the shape through die stamping. The method is suitable for the industrialized production.

Description

technical field [0001] The invention relates to the field of high-temperature-resistant organic fire-proof and heat-insulating materials that require stable appearance, such as various openings formed when wires and cables, air pipes, oil pipes, air pipes, etc. pass through walls (warehouses) and building (a) boards, and Fireproof partition boards for cable trays, fireproof protective tubes for wires and cables, fireproof slot cover sets, fireproof sockets, fireproof circuit boards, wiring boards, etc. The field of organic fireproof and heat insulation materials with arbitrary shape and requiring good precision processability. Background technique [0002] With the construction of high-rise buildings and facilities in cities, there are more and more penetrating objects, such as wires and cables, air pipes, oil pipes, air pipes, etc., but almost all of these facilities are flammable. It is easy to spread combustion along the longitudinal direction, resulting in the expansion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/00C04B26/32
CPCC04B2111/28C04B26/32C04B2111/00431
Inventor 沈强熊远禄郑劲陈斐王传彬张联盟
Owner WUHAN UNIV OF TECH
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