Halogen-flame retardant and application thereof

Abstract

The invention belongs to the field of flame retardant technology and provides a halogen-frame retardant. The halogen-flame retardant comprises a first component and a second component. The first component is composed of a main flame retardant and an auxiliary flame retardant. The main flame retardant is selected from a brominated flame retardant and a chlorinated flame retardant; and the auxiliaryflame retardant is a fluorine compound. The second component is a flame-retardant synergistic compound, selected from metal oxides of the group IIIA, IVA, VA metals in the periodic table of the elements or salt thereof, transition metal oxide, a silicon-based flame retardant, a phosphorus-based flame retardant and a nitrogen-based flame retardant. The invention also provides a resin composite material, an elastomer composite material and a relative formed body containing the halogen-frame retardant, a coating medium and related part or structural body, and an impregnated material. The invention has the following beneficial effects: the technical bias that fluoride cannot effectively perform the flame-retardant effectiveness and then cannot be used or is hard to be used as a flame retardant is corrected; the actual usage of the brominated flame retardant and / or the chlorinated flame retardant is reduced, and then the production difficulty of the flame retardant and the environmental pollution are reduced, and the color matching and cost control difficulty is reduced.

Description

Technical field

[0001] The invention belongs to the technical field of flame retardancy and relates to a halogen flame retardant. Background technique

[0002] We know that when materials are thermally cracked, substances are produced that can react with oxygen in the atmosphere to form H 2 -O 2 system and can propagate combustion through chain branching reactions.

[0003] H·+O2→·OH+·O

[0004] O·+H2→·OH+·H

[0005] Weakening or terminating combustion is achieved by preventing the above-mentioned chain branching reaction.

[0006] As a halogen flame retardant, halogen atoms X· and hydrogen halide HX can be obtained by thermal decomposition. HX can capture highly active H· and ·OH to generate less active HX, thereby forming an effective flame retardant.

[0007] MX→M·+X·

[0008] MX→HX+M’

[0009] RH+X·→HX+R·

[0010] H·+HX→H 2 +X·

[0011] OH·+HX→H 2 O+X·

[0012] Moreover, the key is that the reaction speed of H· and HX is twice that of the reaction speed of O...

Examples

Embodiment Construction

[0054] For further explanation, the present invention provides the following examples so that those skilled in the art can clearly understand the gist of the present invention. However, it should be noted that the following embodiments are not limitations to the technical solution of the present invention. Those skilled in the art may make a series of deformations and modifications to the technical solution provided by the present invention in combination with existing knowledge while analyzing and understanding the various embodiments. Equivalent replacement, the new technical solution obtained by the deformation and equivalent replacement is also included in the present invention.

[0055] Since the embodiments of the present invention cannot be exhaustive, some preferred technical features and preferred technical solutions can be reasonably replaced or combined with each other, and the resulting new technical solutions are also included in the present invention.

[0056] In...

Technical field

[0001] The invention belongs to the technical field of flame retardancy and relates to a halogen flame retardant. Background technique

[0002] We know that when materials are thermally cracked, substances are produced that can react with oxygen in the atmosphere to form H 2 -O 2 system and can propagate combustion through chain branching reactions.

[0003] H·+O2→·OH+·O

[0004] O·+H2→·OH+·H

[0005] Weakening or terminating combustion is achieved by preventing the above-mentioned chain branching reaction.

[0006] As a halogen flame retardant, halogen atoms X· and hydrogen halide HX can be obtained by thermal decomposition. HX can capture highly active H· and ·OH to generate less active HX, thereby forming an effective flame retardant.

[0007] MX→M·+X·

[0008] MX→HX+M’

[0009] RH+X·→HX+R·

[0010] H·+HX→H 2 +X·

[0011] OH·+HX→H 2 O+X·

[0012] Moreover, the key is that the reaction speed of H· and HX is twice that of the reaction speed of O...

Examples

Embodiment Construction

[0054] For further explanation, the present invention provides the following examples so that those skilled in the art can clearly understand the gist of the present invention. However, it should be noted that the following embodiments are not limitations to the technical solution of the present invention. Those skilled in the art may make a series of deformations and modifications to the technical solution provided by the present invention in combination with existing knowledge while analyzing and understanding the various embodiments. Equivalent replacement, the new technical solution obtained by the deformation and equivalent replacement is also included in the present invention.

[0055] Since the embodiments of the present invention cannot be exhaustive, some preferred technical features and preferred technical solutions can be reasonably replaced or combined with each other, and the resulting new technical solutions are also included in the present invention.

[0056] In...

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