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Preparation process of fireproof rubber strip

A preparation process and technology of fireproof adhesive strips, which are used in fireproof doors, special equipment for doors/windows, door/window applications, etc., which can solve the problem that the fireproof inner core and the PVC shell are not tightly combined, and the fireproof inner core and the PVC shell are easily degummed. , Affect fireproof strips and other problems, achieve the effect of low production difficulty, high production efficiency and good product quality

Active Publication Date: 2020-10-13
广东平治防火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing preparation process of fireproof rubber strips, the fireproof inner core is directly inserted into the PVC shell. This preparation process has at least the following problems: 1. The combination between the fireproof inner core and the PVC shell is not tight, which affects the function of the fireproof rubber strip; 2. 1. It is easy to degumming between the fireproof inner core and the PVC shell, which causes the two to peel off; 3. When the humidity is high, the fireproof inner core is prone to flow; 4. The preparation efficiency is low

Method used

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  • Preparation process of fireproof rubber strip
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  • Preparation process of fireproof rubber strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation process for a fireproof rubber strip, comprising the following steps:

[0040] (1) The raw material of the PVC shell is granulated and extruded to obtain the PVC shell, and the double-sided adhesive tape and protective film are pasted simultaneously; when granulating, the temperature is controlled at 175°C, and during extrusion molding, the molding temperature is controlled at 170±5°C;

[0041] (2) Bind the PVC shell in the frame of 200×200, first inject the adsorption material, and then use the compression pump to inject the reaction-cured fireproof liquid, and control the injection pressure to 0.5MPa; the above-mentioned adsorption material is a water-based siloxane additive, using Tego 410 (TEGO Glide 410);

[0042] (3) After passing the first test, use a constant temperature oven for constant temperature reaction and drying. The constant temperature is 70°C and the time is 48 hours. Then the product is tested for the second time. After passing the test...

Embodiment 2

[0051] A preparation process for a fireproof rubber strip, comprising the following steps:

[0052] (1) The raw material of the PVC shell is granulated and extruded to obtain the PVC shell, and the double-sided adhesive tape and protective film are pasted simultaneously; when granulating, the temperature is controlled at 180°C, and during extrusion molding, the molding temperature is controlled at 170±5°C;

[0053] (2) Bind the PVC shell in the frame of 200×200, first inject the adsorption material, and then use the compression pump to inject the reaction-cured fireproof liquid, and control the injection pressure to 0.5MPa; the above-mentioned adsorption material is a water-based siloxane additive, using Tego 410 (TEGO Glide 410);

[0054] (3) After passing the first test, use a constant temperature oven for constant temperature reaction and drying. The constant temperature is 70°C and the time is 48 hours. Then the product is tested for the second time. After passing the test...

Embodiment 3

[0063] A preparation process for a fireproof rubber strip, comprising the following steps:

[0064] (1) The raw material of the PVC shell is granulated and extruded to obtain the PVC shell, and the double-sided adhesive tape and protective film are pasted simultaneously; when granulating, the temperature is controlled at 180°C, and during extrusion molding, the molding temperature is controlled at 170±5°C;

[0065] (2) Bind the PVC shell in the frame of 200×200, first inject the adsorption material, and then use the compression pump to inject the reaction-cured fireproof liquid, and control the injection pressure to 0.5MPa; the above-mentioned adsorption material is a water-based siloxane additive, using Tego 410 (TEGO Glide 410);

[0066] (3) After passing the first test, use a constant temperature oven for constant temperature reaction and drying. The constant temperature is 70°C and the time is 48 hours. Then the product is tested for the second time. After passing the test...

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Abstract

The invention discloses a preparation process of a fireproof rubber strip. The preparation process comprises the following steps of (1) granulating a PVC shell raw material, and then carrying out extrusion molding to obtain a PVC shell; and (2) injecting reaction curing type fireproofing liquid into the PVC shell, and then performing heating and drying to obtain the fireproof rubber strip. According to the preparation process, a adsorption material is firstly injected into the PVC shell, the PVC shell is completely filled with the fireproofing liquid obtained after reaction curing and drying by regulating and controlling fireproofing liquid formula, injection conditions and heating and drying conditions, no gap exists between a fireproof inner core and the PVC shell, the fireproof inner core and the PVC shell are tightly connected, the fireproof inner core cannot be stripped from the PVC shell, the phenomena of powder falling and pulp flowing of the fireproof inner core cannot occur, and the action effect of the fireproof rubber strip is better.

Description

technical field [0001] The invention belongs to the field of fireproof materials, and in particular relates to a preparation process of a fireproof sealing material for doors and windows. Background technique [0002] The fireproof rubber strip is mainly used between the door leaf and the door frame, between the door leaf and the door leaf. When a fire occurs, the fireproof rubber strip will automatically expand to seal the gap between the door and the air circulation between the two spaces inside and outside the door, effectively preventing the fire from concentrating in the early stage. Smoke, toxic gas and hot gas are harmful to the human body, and can control the spread of fire. [0003] The fireproof rubber strip usually includes a PVC shell and an inner core. The preparation process of the fireproof rubber strip in the prior art usually includes the following steps: (1) extruding the PVC shell; (2) preparing the fireproof inner core; (3) making the fireproof inner core...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/92E06B7/23E06B5/16C04B28/26C04B111/28
CPCB29C48/92C04B28/26E06B7/2314E06B5/164B29C2948/92704C04B2111/28C04B2103/0068C04B2103/50C04B2103/63C04B2103/48
Inventor 朱杰明尹书祥
Owner 广东平治防火材料有限公司