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Flame-retardant foamed plastic

A foamed plastic and flame retardant technology, which is applied in the field of flame-retardant foamed plastics, can solve the problems of brittleness, easy slag removal on the surface, low shear strength, etc., and achieves good flame-retardant function and is suitable for mass production.

Inactive Publication Date: 2016-06-15
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 foamed plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 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

[0017] 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

[0019] AGS-J type liquid crystal 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. .

[0020] Testing and Characterization

[0021] Oxygen index test: measure the limiting oxygen index (LOI) of flame-retardant composite materials according to GB / T2406-1993 standard, and the sample size is: 110mmx6.5mmx3mm.

[0022] Horizontal combustion test: According to GB / T2408-1996 standard, the horizontal combustion level of flame-retardant composite materials is determined, and the sample size is: 125mmx13.0mmx3.0mm.

[0023] 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.

[0024] The test result of the sample of embodiment 1-2 sees the...

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PUM

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Abstract

The invention relates to flame-retardant foamed plastic. The 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 crosslinking agent, 0.1-0.5 part of flame retardant, 1-5 parts of lubricating agent and 1-5 parts of stabilizer. The plastic has good flame retardance, the thermal deformation temperature, mechanical temperature, electric insulation property and other performance of a prepared product are not influenced, and the plastic has long-term flame retardance and is friendly to the environment and suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of plastics, in particular, the invention relates to a flame-retardant foamed plastic. 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 insulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/46C08F220/06C08F2/44C08K13/02C08K5/45C08K5/09C08K3/30C08L33/20C08J9/14
CPCC08F220/46C08F2/44C08J9/148C08J2203/144C08J2333/20C08K3/30C08K5/09C08K5/45C08K13/02C08K2003/3045C08L2201/02C08L2203/14C08F220/06C08L33/20
Inventor 不公告发明人
Owner WUXI ZHIGURUITUO TECH SERVICE CO LTD
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