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Halogen-free smoke inhibition fire retardant

A flame retardant, sodium bicarbonate technology, applied in the field of halogen-free smoke suppression flame retardant, to achieve the effect of reducing cost, increasing fluidity, and high smoke and combustion suppression

Active Publication Date: 2012-07-25
金湖县农副产品营销协会
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a halogen-free smoke suppression flame retardant for the problems existing in the prior art to solve the burning problem of polystyrene and polyurethane foam materials, and to eliminate the influence of flame retardants on the foaming ability of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of flame retardant: mix graphite oxide, palygorskite clay, and sodium bicarbonate at a mass ratio of 1:6:2.

[0024] Preparation of flame retardant polymer material: mix flame retardant, polystyrene and additives, fully stir and knead in a high-speed mixer, extrude, granulate and foam through a twin-screw extruder to obtain the product. The addition amount of the flame retardant is 15 parts by weight per 100 parts by weight of the matrix, and the addition amount of the auxiliary agent is in a conventional ratio. The additives are antioxidants and lubricants commonly used in the preparation of polystyrene composite materials.

[0025] Performance test: the flame retardant index is 36, the smoke density is 72, the average burning time is less than 30 s, and the average burning length is less than 250 mm, fully meeting the national building materials B 1 standard.

Embodiment 2

[0027] Preparation of flame retardant: mix graphite oxide, palygorskite clay, and sodium bicarbonate at a mass ratio of 1:2:2.5.

[0028] Preparation of flame retardant polymer material: mix flame retardant, polystyrene and additives, fully stir and knead in a high-speed mixer, extrude, granulate and foam through a twin-screw extruder to obtain the product. The addition amount of the flame retardant is 45 parts by weight per 100 parts by weight of the matrix, and the addition amount of the auxiliary agent is in a conventional proportion. The additives are antioxidants and lubricants commonly used in the preparation of polystyrene composite materials.

[0029] Performance test: the flame retardant index is 32, the smoke density is 75, the average burning time is less than 30 s, and the average burning length is less than 250 mm, fully meeting the national building materials B 1 standard.

Embodiment 3

[0031] Preparation of flame retardant: mix graphite oxide, palygorskite clay, and sodium bicarbonate at a mass ratio of 1:1:0.5.

[0032] Preparation of flame retardant polymer material: mix flame retardant, polystyrene and additives, fully stir and knead in a high-speed mixer, extrude, granulate and foam through a twin-screw extruder to obtain the product. The addition amount of the flame retardant is 55 parts by weight per 100 parts by weight of the matrix, and the addition amount of the auxiliary agent is in a conventional proportion. The additives are antioxidants and lubricants commonly used in the preparation of polystyrene composite materials.

[0033] Performance test: the flame retardant index is 34, the smoke density is 70, the average burning time is less than 30 s, and the average burning length is less than 250 mm, fully meeting the national building materials B 1 standard.

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PUM

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Abstract

The invention provides a halogen-free smoke inhibition fire retardant, which is obtained by mixing graphite oxide, palygorskite clay (attapulgite) and sodium bicarbonate at the mass ratio of 1:1:0.5-1:10:5. Mass experiments prove that the oxygen index of the fire retardant is 32-38, smoke density is less than 75, average burning time is shorter than 30s and average burning length is less than 250mm when 15-55 parts of fire retardant are added into every 100 parts of high-polymer substrate. The halogen-free smoke inhibition fire retardant has good smoke inhibition and fire retarding performance and completely satisfies the requirement of the national building material B1 standard. The halogen-free smoke inhibition fire retardant is especially suitable to use in the polystyrene and the polyurethane substrate and is also suitable to use in polyethylene, polypropylene, ethylene-vinyl acetate, styrene-acrylonitrile-butadiene copolymer, nylon, polycarbonate, thermoplastic elastomer and various types of rubber.

Description

technical field [0001] The invention relates to a flame retardant for polymer materials, in particular to a halogen-free smoke-suppressing flame retardant for polymer materials, which is mainly used for flame retardant treatment of building materials such as polystyrene foam boards and polyurethane foam boards , can also be used in polyethylene, polypropylene, ethylene-vinyl acetate, styrene-acrylonitrile-butadiene copolymer, nylon, polycarbonate, thermoplastic elastomers, and various types of rubber. Background technique [0002] With the improvement of the living environment of human beings, people have more stringent requirements on the suitable temperature of the living room and the quiet rest environment. In addition, in order to solve the contradiction of energy demand and create a low-carbon environment, the Chinese government has designated building energy conservation as one of the basic national policies for energy conservation, and formulated corresponding plans a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/06C08K9/00C08K3/04C08K7/10C08K3/26C08L25/06C08L75/04C08L23/06C08L23/12C08L23/08C08L31/04C08L55/02C08L77/00C08L69/00
Inventor 雷自强张哲许剑武战翠沈智马国富王荣方
Owner 金湖县农副产品营销协会
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