WO-2026091345-A1 - INSULATING FLAME-RETARDANT AUTOMATICALLY FIRE-EXTINGUISHING PATCH AND PREPARATION METHOD THEREFOR

Abstract

The present invention relates to an insulating flame-retardant automatically fire-extinguishing patch and a preparation method therefor. The insulating flame-retardant fire-extinguishing patch comprises a bottom film, an adhesive layer and an insulating flame-retardant layer, wherein the insulating flame-retardant layer comprises: 20-60 parts of perfluoro-2-methyl-3-pentanone microcapsules, 20-30 parts of polydimethylsiloxane, 0.1-5 parts of magnesium hydroxide, 0.1-5 parts of triphenyl phosphate, 0.5-5 parts of tributyl phosphate, 0.1-5 parts of tris(2-ethylhexyl)phosphate, 0.2-5 parts of tris(2,3-dichloropropyl)phosphate, 0.2-5 parts of a tetrabromobisphenol A epoxy resin, 0.5-3 parts of antimony trioxide, 0.1-5 parts of a borate, 0.1-5 parts of dibromochloromethane, and 0.1-5 parts of trichlorobromomethane. The insulating flame-retardant fire-extinguishing patch of the present invention is easy to install, does not require maintenance, actively extinguishes a fire in the incipient stage, can achieve the effect of repeated fire extinguishing and effectively prevent reignition and fire expansion, and is safe, green and environmentally friendly.

Inventors

• YAN, Jiulian
• XU, Ganjiao

Assignees

• 东莞市裕协实业有限公司

Dates

Publication Date

20260507

Application Date

20250227

Priority Date

20241028

Claims (5)

1. An insulating, flame-retardant, automatic fire extinguishing material, characterized in that it comprises, by weight: 20-60 parts of perfluoro2-methyl-3-pentanone microcapsules 20-30 parts of polydimethylsiloxane Magnesium hydroxide 0.1-5 parts, Triphenyl phosphate 0.1-5 parts, Tributyl phosphate 0.5-5 parts, Tris(2-ethylhexyl) phosphate 0.1-5 parts, 0.2-5 parts of tris(2,3-dichloropropyl) phosphate, 0.2-5 parts of tetrabromobisphenol A epoxy resin, 0.5-3 parts of antimony trioxide 0.1-5 parts of borate, 0.1-5 parts of dichlorobromomethane, 0.1-5 parts of trichlorobromomethane.
2. The insulating flame-retardant fire extinguishing material according to claim 1, characterized in that it comprises, by weight: 50 portions of perfluoro2-methyl-3-pentanone microcapsules 25 parts of polydimethylsiloxane 3 parts magnesium hydroxide Two parts of triphenyl phosphate, 3 parts of tributyl phosphate Two parts of tri(2-ethylhexyl) phosphate, 1.5 parts of tris(2,3-dichloropropyl) phosphate, 2.5 parts of tetrabromobisphenol A epoxy resin, 1 part antimony trioxide 2 parts of borate, 2.5 parts of dichlorobromomethane Two parts of trichlorobromomethane.
3. A method for preparing an insulating flame-retardant fire extinguishing material, characterized in that it includes mixing the components according to a formula.
4. An insulating flame-retardant fire extinguishing patch, characterized in that it comprises a base film, an adhesive layer, and an insulating flame-retardant layer connected in sequence; the insulating flame-retardant layer is made of the insulating flame-retardant fire extinguishing material as described in claim 1 or 2.
5. The method for preparing the insulating flame-retardant fire extinguishing patch according to claim 4 is characterized in that it includes: The components of the insulating and flame-retardant fire extinguishing material are mixed according to the formula to form an insulating and flame-retardant layer. Apply adhesive to one side of the insulating and flame-retardant layer to form an adhesive layer; A release film is attached to the adhesive layer as a base film.

Description

Insulating flame-retardant automatic fire extinguishing patch and its preparation method Technical Field This invention relates to the field of chemical fire extinguishing technology, specifically to an insulating and flame-retardant automatic fire extinguishing patch and its preparation method. Background Technology Most existing traditional fire extinguishing products rely on manual operation, especially during a fire, requiring human intervention to activate the extinguishing system. However, when a fire occurs in a confined or narrow space, these areas often lack effective monitoring equipment, making it difficult for people to detect the fire in the first instance. This leads to the rapid spread of the fire, resulting in irreparable economic losses and safety hazards. In recent years, microencapsulated fire extinguishing agents have been gradually introduced into the fire protection field. This technology encapsulates the extinguishing agent within microcapsules, which automatically release the agent upon contact with high temperatures or flames, rapidly suppressing fires in their early stages without requiring manual intervention. Therefore, it demonstrates significant advantages in improving fire extinguishing efficiency and reducing extinguishing agent waste, making it particularly suitable for automatic fire suppression systems. However, despite the great potential of microencapsulated fire extinguishing technology, existing products still require further optimization. Summary of the Invention This invention provides an insulating, flame-retardant, automatic fire extinguishing patch and its preparation method. This invention first provides an insulating and flame-retardant fire extinguishing material, comprising, by weight: 20-60 parts of perfluoro2-methyl-3-pentanone microcapsules Polydimethylsiloxane (PDMS) 20-30 parts, Magnesium hydroxide 0.1-5 parts, Triphenyl phosphate (TPP) 0.1-5 parts, Tributyl phosphate (TBP) 0.5-5 parts, Tri(2-ethylhexyl) phosphate (TEHP) 0.1-5 parts, Tris(2,3-dichloropropyl)phosphate (TDCPP) 0.2-5 parts, Tetrabromobisphenol A epoxy resin (TBBPA-EP) 0.2-5 parts, 0.5-3 parts of antimony trioxide 0.1-5 parts of borate, 0.1-5 parts of dichlorobromomethane, 0.1-5 parts of trichlorobromomethane. Preferably, the insulating flame-retardant fire extinguishing material comprises, by weight: 50 portions of perfluoro2-methyl-3-pentanone microcapsules 25 parts of polydimethylsiloxane 3 parts magnesium hydroxide Two parts of triphenyl phosphate, 3 parts of tributyl phosphate Two parts of tri(2-ethylhexyl) phosphate, 1.5 parts of tris(2,3-dichloropropyl) phosphate, 2.5 parts of tetrabromobisphenol A epoxy resin, 1 part antimony trioxide 2 parts of borate, 2.5 parts of dichlorobromomethane Two parts of trichlorobromomethane. Existing perfluoro-2-methyl-3-pentanone microcapsules (also known as perfluorohexanone microcapsules) rupture upon contact with a fire source, releasing perfluorohexanone and rapidly extinguishing the flames. However, the inventors discovered that perfluoro-2-methyl-3-pentanone microcapsules, or fire extinguishing patches made from this material, fail to effectively extinguish their own flames, sometimes even resulting in accidental fires. Furthermore, these fire extinguishing patches are prone to gas leakage in high-humidity environments (such as during the rainy season), leading to product failure. To address this issue, the inventors discovered that adding polydimethylsiloxane effectively improves its flame-retardant properties. While other types of silicone oils can mitigate the aforementioned "ignition" problem to some extent, they cannot bind well with perfluoro-2-methyl-3-pentanone microcapsules and may damage the microcapsule's outer shell structure, thus limiting their applications. Polydimethylsiloxane, while improving flame-retardant properties, also maintains the structural integrity of the microcapsules, thereby better meeting practical application requirements. Other components of the insulating flame-retardant fire extinguishing material of the present invention are mainly used as flame retardants or flame retardant additives to further improve the flame retardant performance of the insulating flame-retardant fire extinguishing material. In this invention, perfluoro-2-methyl-3-pentanone microcapsules are a novel, safe, and environmentally friendly fire extinguishing material. They encapsulate perfluorohexanone fire extinguishing agent within a flame-retardant polymer shell, forming a highly efficient fire extinguishing system. They can be prepared using existing methods, and this invention does not impose any particular limitations. In the formulation of this invention, in addition to the above-mentioned functions, polydimethylsiloxane can also provide good flexibility, resistance to high and low temperatures, hydrophobicity and electrical insulation. Magnesium hydroxide is mainly used as an inorganic flame retardant. It can decompose and release water