Novel processing method for sealing strip with characteristics of fire resistance, smoke resistance and sound isolation

A technology of sound insulation sealing and processing method is applied in the production field of fireproof, smokeproof, soundproof and soundproof sealing strips, and achieves the effects of good and stable product quality, reduced labor cost, and improved smoke and sound insulation effect.

Inactive Publication Date: 2015-08-12
上海加尔福防火密封材料有限公司
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AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the traditional processing method, the present invention provides a new processing method that rationally optimizes the formula of the two parts of the material and adopts a complex mold structure and one production line to automatically mechanize the production of fireproof, smokeproof, soundproof and soundproof sealing strips

Method used

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Embodiment Construction

[0021] The novel processing method of the fireproof, smokeproof and soundproof sealing strip described in the embodiment of the present invention mainly consists of the following steps:

[0022] (1) First, prepare the granules of the raw materials used in the two parts, namely the hard base plate and the soft wing material: the hard base plate uses 100 phr of PVC powder, the DOP plasticizer is less than or equal to 4 phr, and the CPE toughening agent is 8 phr. Calcium powder CaCO3 is less than or equal to 20 phr, mixed in sequence with a high-speed mixer, when it reaches 115°C, put the mixture into a low-speed cooling mixer for mixing, and release it when it is cooled to 50°C to form Mixture I;

[0023] Among them, the soft wing uses 100phr of PVC powder, DOP plasticizer greater than or equal to 90phr, NBR of 12phr, calcium powder CaCO3 of less than or equal to 10phr, and flame retardant of 4phr; use a high-speed mixer to mix in sequence, when it reaches 120 At ℃, put the mixt...

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Abstract

The present invention relates to a novel processing method for a sealing strip with characteristics of fire resistance, smoke resistance and sound isolation. The method comprises: preparing raw material particles used for two parts, and forming a mixing material I and a mixing material II, wherein the two parts are a hard bottom plate and a soft wing; cooling by using conical twin screw granulation equipment, and processing into particles respectively at a temperature of 150 DEG C and under 20 Mpa; and preparing two single screw extrusion equipment, respectively adding the particles of the two parts, connecting the mold, and preparing the finished product through the mold. The method of the present invention has the following beneficial effects that: the firm adhesion of the bottom and the soft wing can be ensured, the efficiency is high, the product quality is good, the structure of the produced product is stable, and the new shape structure which can not be produced by the traditional process method can be produced.

Description

technical field [0001] The invention relates to the production technology of fireproof, smokeproof and soundproof sealing strips, in particular to a novel processing method of fireproof, smokeproof and soundproof sealing strips. Background technique [0002] With the development of the sealing industry and the improvement of the requirements for fireproof doors and windows, fireproof and smokeproof sealing strips play an increasingly important role in fireproof doors and windows such as fireproof sealing, smokeproof, sound insulation, dustproof, heat preservation and energy saving. The general sealing strip is formed by extrusion of PVC, modified PVC, EPDM, elastomer sealing strip (TPV, TPE, TPR), silica gel and other materials. However, the above-mentioned materials cannot play a role in fireproof doors and windows, and even in the event of a fire, they cannot achieve the fireproof effect of isolating smoke and expanding and sealing gaps. Instead, they will increase the int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L9/02C08K5/12C08K3/26B29B9/06
CPCC08L27/06B29B9/06C08L2201/02C08L2201/14C08L23/286C08K5/12C08K2003/265C08L9/02
Inventor 周本浩
Owner 上海加尔福防火密封材料有限公司
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