Fireproof expansion sealing strip and preparation method thereof

A technology of expanding sealing strips and raw materials, which is applied in the field of fireproof expanding sealing strips and its preparation, can solve the problems of increasing fire intensity, polluting the atmospheric environment, secondary disasters, etc., and achieve the effect of preventing early dense smoke and high ignition point

Inactive Publication Date: 2017-07-21
尹书祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned materials will reduce their own material properties under high temperature conditions, and release toxic substances, which will seriously pollute the atmospheric environment and affect human health; due to the large amount of sealing strips used in door and window sealing, PVC sealing strips will burn themselves in case of fire, causing a fire When it is used, it will not achieve the effect of isolation and fire protection, but will increase the fire and release thick smoke and toxic gases, and even cause secondary disasters, so it is restricted in use.

Method used

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  • Fireproof expansion sealing strip and preparation method thereof
  • Fireproof expansion sealing strip and preparation method thereof
  • Fireproof expansion sealing strip and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh the raw materials of the following weight proportions:

[0027]

[0028] Selection of flame-retardant PVC mixed material→crushing treatment→heating and extrusion→vacuum suction and floatation→water cooling and shaping→air drying;

[0029] Making the core filling: After granulating each raw material, weigh the raw materials by weight and stir them in a high-speed mixer, and then they will become powdery substances after stirring. Put the stirred powder into the extrusion granulator, extrude and granulate at 100-120°C; introduce the prepared granules into the outer tube for extrusion molding, water cooling, air drying, and cut to get the finished sealing strip

Embodiment 2

[0031] Weigh the raw materials of the following weight proportions:

[0032]

[0033]

[0034] Selection of flame-retardant PVC mixed material→crushing treatment→heating and extrusion→vacuum suction and floatation→water cooling and shaping→air drying;

[0035] Making the core filling: After granulating each raw material, weigh the raw materials by weight and stir them in a high-speed mixer, and then they will become powdery substances after stirring. Put the stirred powder into the extrusion granulator, extrude and granulate at 100-120°C; introduce the prepared granules into the outer tube for extrusion molding, water cooling, air drying, and cut to get the finished sealing strip

Embodiment 3

[0037] Weigh the raw materials of the following weight proportions:

[0038] Weigh the raw materials of the following weight proportions:

[0039]

[0040] Selection of flame-retardant PVC mixed material→crushing treatment→heating and extrusion→vacuum suction and floatation→water cooling and shaping→air drying;

[0041] Making the core filling: After granulating each raw material, weigh the raw materials by weight and stir them in a high-speed mixer, and then they will become powdery substances after stirring. Put the stirred powder into the extrusion granulator, extrude and granulate at 100-120°C; introduce the prepared granules into the outer tube for extrusion molding, water cooling, air drying, and cut to get the finished sealing strip.

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PUM

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Abstract

The invention discloses a fireproof expansion sealing strip which has the effects of shock absorption, fire protection, water resistance, sound insulation, thermal insulation, dust prevention and fixing. A sheath of the sealing strip adopts modified PVC; modified expanded graphite is formed inside the sealing strip; expanded graphite inside the fireproof sealing strip on the market can become loose and drop off after being burnt in a big fire, sealing effect is easy to lose, and black toxic smoke can be produced, so that the harm to human body in a fire scene can be improved. The fireproof sealing strip can be expanded but not become loose and drop off after being burnt in a big fire, can maintain integrity, reduce the extension of the fire, cannot generate black smoke, is good in expansibility, completeness and sealing property in case of a fire, and is good in ageing resistance at ordinary times.

Description

technical field [0001] The invention relates to the technical field of sealing strips, in particular to a fireproof expansion sealing strip and a preparation method thereof. Background technique [0002] With the development of the door and window sealing industry and the improvement of the quality of life requirements, people have higher and higher requirements for the sealing of doors and windows. Sealing strips play a role in sound insulation, dustproof, frostproof, heat preservation, waterproof and energy saving in plastic steel doors and windows, broken bridge aluminum doors and windows and wooden doors and windows. For example, the use of door and window sealing technology can save electricity by 20-30%, reduce noise by 50-80%, and increase the room temperature by 3-8°C. The addition of sealing strips can effectively prevent the deformation of doors and windows and prolong the service life. [0003] Sealing strips are generally extruded from PVC, modified PVC, EPDM, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L63/00C08L91/06C08L91/00C08K13/04C08K7/24C08K3/04C08K5/098C08K3/32C08K7/20
CPCC08L27/06C08K2003/329C08L63/00C08L2201/02C08L2201/06C08L2205/02C08L2205/035C08L91/06C08L91/00C08K13/04C08K7/24C08K3/04C08K5/098C08K3/32C08K7/20
Inventor 尹书祥
Owner 尹书祥
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