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Expansion seal composition and products thereof

A technology of expansion sealing and composition, applied in the direction of adhesive types, adhesive additives, hydrocarbon copolymer adhesives, etc., to achieve good weather resistance

Inactive Publication Date: 2017-06-23
马来西亚挤压膨胀系统科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are some problems in the prior art and traditional expansion that have not been effectively solved, therefore, there is still a need for an improved expansion sealing composition

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: the mixture is too liquefied, it is difficult to coat the required thickness;

Embodiment 2

[0039] Example 2: The mixture is easy to coat on the carrier film and the required thickness can be adjusted;

Embodiment 3

[0040] Example 3: The mixture was too thick and was difficult to coat on the carrier film.

[0041] The sample made after coating and drying of Examples 1-3 was placed in a furnace and heated to 550°C to make its volume expand, and the expansion rate was measured and observed. The results are as follows:

[0042] Embodiment 1: The volume of the sample is expanded to about 8 times of the original volume;

[0043] Embodiment 2: The volume of the sample is expanded to about 25 times of the original volume;

[0044] Example 3: The volume of the sample expands to about 30 times the original volume.

[0045] It was observed that, for the above samples, the coating was easily torn off the carrier film.

[0046] Several corona-treated thermoplastic film materials were coated with different expansion sealing compositions, and it can be found that there is a strong bonding force between the coating and the carrier. The combination ratio of thermoplastic film materials and expansion se...

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Abstract

The invention discloses an improved expansion seal composition and products thereof, and the expansion seal composition preferably comprises 10-60wt% expansion agent and 20-80% binder. The expansion agent and the binder are mixed evenly first and then coated on a carrier film to form a coating with a certain thickness; a flame retardant can be added in the composition. The expansion seal composition and the products thereof have a good weatherability, and won't be influenced b environment factors like air humidity.

Description

[0001] 【Technical field】 [0002] The present invention relates to an intumescent sealing composition, and more particularly to an improved intumescent sealing composition and articles thereof which, when subjected to heating or burning, expand many times in volume, foam to form foamed char, prevent further combustion, and Seal gaps to prevent passage of smoke and flames. [0003] 【Background technique】 [0004] Intumescent seals are widely used in heat sealing and fire sealing, aiming at providing a fire sealing between fire doors and fire compartment gaps, for penetration filling gaps, and for dissipating heat in a fire. [0005] There are many kinds of well-known expansion materials, some of which are affected by the environment such as humidity over time, making their effects weakened or invalid; some materials will generate halogens after heating or burning; Degradation limits applications. [0006] The most traditional expansion is produced in the environment of a heati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J129/04C09J133/00C09J123/22C09J125/04C09J11/04
CPCC08K3/04C08K3/32C08K7/24C08K2003/323C09J7/243C09J7/245C09J11/04C09J123/22C09J125/14C09J129/04C09J133/00C09J2301/122C09J2301/408C09J2423/00C09J2423/046C09J2423/106C09J2425/00C09J2429/00C09J2433/00
Inventor 宋朝明
Owner 马来西亚挤压膨胀系统科技有限公司
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