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Flame retardant for flame-retardant foamed plastic

A technology of flame retardant and application, applied in the field of flame retardant for flame retardant foam plastics, can solve the problems of easy slag drop on the surface, brittleness, low shear strength, etc., and achieves a product suitable for mass production and good flame retardant function. Effect

Inactive Publication Date: 2016-08-17
WUXI ZHIGURUITUO TECH SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phenolic foam PF, although low-toxic and flame-retardant, has low shear strength, is brittle, and the surface is prone to slag, so a lot of improvement work needs to be done

Method used

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  • Flame retardant for flame-retardant foamed plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Weigh 80 kg of acrylonitrile, 40 kg of methacrylic acid, 3 kg of trichlorofluoromethane, 1 kg of phthaloyl peroxide, N-((2,6-dimethyl-4-oxo-1,4- Dihydropyridin-3-yl)methyl)-5-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-4-methylthiophene-3-carboxamide 0.1 kg, stearic acid 2 1 kg and 2 kg of tribasic lead sulfate, mix the above-mentioned substances, and stir for 5 hours with a high-speed mixer until the mixture becomes wine red, inject it into the cavity of a glass mold and seal it, and place it in a circulating water tank at 50°C for 72 hours, then place In the foaming tooling, put it together with the foaming tooling in an electric constant temperature blast drying oven for foaming. The foaming temperature is controlled at 150 ° C, and the foaming time is 25 minutes, and then heat treatment is carried out at 160 ° C and 180 ° C respectively. hours, to obtain the flame retardant foam plastics.

Embodiment 2

[0012] Prepare flame retardant foam plastics in the same manner as in Example 1, except that no flame retardant N-((2,6-dimethyl-4-oxo-1,4-dihydropyridine-3- base)methyl)-5-(ethyl(tetrahydro-2H-pyran-4-yl)amino)-4-methylthiophene-3-carboxamide.

experiment example

[0014] AGS-J type liquid crystal screen display electronic tensile testing machine, High-speed Railway Testing Instrument Co., Ltd.; oxygen index measuring instrument, HC-2CZ, Nanjing Fangshan Analytical Instrument Equipment Factory; horizontal and vertical combustion tester, AG5100, Zhuhai Safety Testing Co., Ltd. .

[0015] Testing and Characterization

[0016] Oxygen index test: measure the limiting oxygen index (LOI) of flame-retardant composite materials according to GB / T 2406-1993 standard, and the sample size is: 110mm x6.5mm x3mm.

[0017] Horizontal combustion test: According to the GB / T 2408-1996 standard, the horizontal combustion level of the flame-retardant composite material is determined, and the sample size is: 125mm x 13.0mm x3.0mm.

[0018] Mechanical properties test: According to GB / T7594-1987, GB / T5013-2008, GB / T2951-2008 standards, the mechanical properties of flame retardant composite materials were measured.

[0019] The test result of the sample of em...

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PUM

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Abstract

The invention relates to flame-retardant foamed plastic. The flame-retardant foamed plastic is prepared from, by weight, 50-100 parts of acrylonitrile, 30-60 parts of methacrylic acid, 1-5 parts of foaming agent, 0.5-1.5 parts of cross-linking agent, 0.1-0.5 part of flame retardant, 1-5 parts of lubricant and 1-5 parts of stabilizer. The flame-retardant foamed plastic has a good flame retarding function, the thermal deformation temperature, mechanical temperature, electric insulation properties and other properties of the prepared product are not affected, and the plastic has long-term flame retardation, and is environmentally friendly and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of plastics, in particular to a flame retardant for flame-retardant foamed plastics. Background technique [0002] In order to alleviate the pressure of energy shortage, the promotion of energy-saving buildings is one of the energy-saving measures that are valued by countries all over the world. In buildings, the peripheral structure is in direct contact with nature, and is most affected by the outside world, and its energy loss is also the most obvious. Therefore, thermal insulation of building peripheral structures has become the most commonly used and most effective method in building energy conservation. [0003] At present, the materials used for building exterior wall insulation in my country mainly include organic materials such as polystyrene (PS), polyurethane (PU) and phenolic foam (PF), as well as inorganic materials such as rock wool and glass wool. Inorganic insulation materials (such as fiber insulation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/45
CPCC08K5/45
Inventor 不公告发明人
Owner WUXI ZHIGURUITUO TECH SERVICE CO LTD
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