Sealing strip for steel doors and windows

A technology for sealing strips and doors and windows, which is applied in the field of material preparation, can solve the problems of affecting heat insulation performance, poor sealing performance, reduced dust resistance and water resistance, etc., and achieves low price, good thermal stability, and flame retardant performance. good effect

Pending Publication Date: 2021-02-12
安徽博泰装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The seal between the sealing strip and the building energy-saving and heat-insulating aluminum profile is not very good. After a period of use, the dustproof and waterproof properties will be reduced, and dust and water will easily enter between the sealing strip and the steel doors and windows, affecting Thermal insulation performance

Method used

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  • Sealing strip for steel doors and windows
  • Sealing strip for steel doors and windows

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Concrete raw material is weighed by table 1, and step preparation step is as follows:

[0027] (1) Add chlorinated polyethylene, butyl rubber, carbon black, calcium carbonate, plasticizer, silicon nitride whiskers, basic magnesium sulfate whiskers, and potassium titanate whiskers into a high-speed mixer, and heat up to 90 ℃, mix for 30min;

[0028] (2) Add the remaining raw materials to the mixture in step (1), continue mixing for 30 minutes, and leave to age for 5 hours;

[0029] (3) The extrusion temperature of the twin-screw extruder is set to be 190° C., and the screw speed is 200 rpm, and the product obtained in step (2) is added to the twin-screw extruder, and granulated through melt blending extrusion, The above-mentioned mixed materials were pressed into the desired shape of the sealing strip by using a hot press at 130°C.

Embodiment 2

[0031] (1) Add chlorinated polyethylene, butyl rubber, carbon black, calcium carbonate, plasticizer, silicon nitride whiskers, basic magnesium sulfate whiskers, and potassium titanate whiskers into a high-speed mixer, and heat up to 100 ℃, mix for 20min;

[0032] (2) Add remaining raw materials to the mixture in step (1), continue mixing for 40 minutes, and leave to age for 6 hours;

[0033] (3) The extrusion temperature of the twin-screw extruder is set to be 220° C., and the screw speed is 250 rpm, and the product obtained in step (2) is added to the twin-screw extruder, and granulated through melt blending extrusion, The above-mentioned mixed materials were pressed into the desired shape of the sealing strip by using a hot press at 160°C.

Embodiment 3

[0035] (1) Add chlorinated polyethylene, butyl rubber, carbon black, calcium carbonate, plasticizer, silicon nitride whiskers, basic magnesium sulfate whiskers, and potassium titanate whiskers into a high-speed mixer, and heat up to 100 ℃, mix for 30min;

[0036] (2) Add the remaining raw materials to the mixture in step (1), continue mixing for 40 minutes, and leave to age for 5 hours;

[0037] (3) The extrusion temperature of the twin-screw extruder is set to be 200° C., and the screw speed is 250 rpm, and the product obtained in step (2) is added to the twin-screw extruder, and granulated through melt blending extrusion, The above-mentioned mixed materials were pressed into the desired shape of the sealing strip by using a hot press at 160°C.

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PUM

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Abstract

The invention relates to a sealing strip for steel doors and windows. The sealing strip is prepared from chlorinated polyethylene, butyl rubber, a calcium-zinc composite stabilizer, a titanate coupling agent, carbon black, stearic acid, calcium carbonate, paraffin, a plasticizer, silicon nitride whiskers, basic magnesium sulfate whiskers and potassium titanate whiskers. The sealing strip is good in thermal stability and good in flame retardant property; on one hand, the effect of blocking heat can be achieved; on the other hand, due to high temperature resistance, a fire source can be effectively blocked, and a fireproof effect is achieved; and the sealing strip provided by the invention has high tensile strength and elongation at break, is suitable for being used in a high-pressure environment, and is suitable for manufacturing sealing strips of steel doors and windows.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a sealing strip for steel doors and windows and a preparation method thereof. Background technique [0002] In the existing steel doors, windows and curtain wall structures, the sealing strip structure is used. The sealing strip is a non-metallic connecting piece connecting the inner and outer profiles in steel doors and windows. It is a structural part that plays a mechanical role in steel doors and windows, and is also a functional part that plays a role in heat transfer on steel door and window frames. At present, building energy-saving and heat-insulating aluminum profiles generally adopt heat-insulating cold bridge technology to achieve the purpose of heat insulation and energy saving. The sealing strip used as a heat-breaking cold bridge is connected in the middle of the inner and outer steel doors and windows. It must not only be an excellent heat insulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L23/22C08L91/06C08K13/04C08K3/04C08K5/09C08K3/26C08K7/10C08K7/08
CPCC08L23/286C08L2201/02C08L2201/08C08L2205/02C08L2205/03C08K2003/265C08L23/22C08L91/06C08K13/04C08K3/04C08K5/09C08K3/26C08K7/10C08K7/08
Inventor 陈文福
Owner 安徽博泰装饰材料有限公司
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