Polystyrene/polyethylene blended high-flame-resistance extruded sheet and production method thereof

A technology of polystyrene and polyethylene, which is applied in the field of high flame-retardant extruded plastic board and its preparation, can solve the problems that white pollution sources cannot be self-degraded, the flame-retardant effect cannot be achieved, and the product performance is poor, so as to improve hardness and improve Insulation effect, effect of improving product strength

Inactive Publication Date: 2016-08-31
南京欧格节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many polystyrene plastic products are discarded after use, and the amount of garbage formed is relatively large, resulting in serious white pollution problems, and these white pollution sources cannot be degraded by themselves. To solve the problem of white pollution, it is necessary to treat these Waste plastic for recycling
[0003] Recycled polystyrene waste plastics generally need to go t

Method used

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  • Polystyrene/polyethylene blended high-flame-resistance extruded sheet and production method thereof
  • Polystyrene/polyethylene blended high-flame-resistance extruded sheet and production method thereof
  • Polystyrene/polyethylene blended high-flame-resistance extruded sheet and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1: A polystyrene / polyethylene blended polystyrene / polyethylene blended high flame retardant extruded board includes the following components:

[0024]

[0025]

[0026] The carrier of the masterbatch is polyperfluoroethylene propylene.

[0027] The method for preparing the above-mentioned polystyrene / polyethylene blended high flame retardant extruded board includes the following steps:

[0028] (1) Add the decolorized polystyrene recycled material into the mixer, heat to 185°C under nitrogen, and add benzoyl peroxide and benzoyl peroxide, mix well and keep stirring Stop stirring after 3h and cool to 60℃;

[0029] (2) Add polystyrene virgin material, polyethylene, color masterbatch and polyethylene grafted zinc maleate to the system in step (1), and heat it to 230°C again under the condition of flowing nitrogen to mix evenly and Heat preservation and stirring for 1.5h, add decabromodiphenyl ether, silicon-based flame retardant, styrene-sodium acrylate and magnesium alum...

Example Embodiment

[0032] Example 2: Polystyrene / polyethylene blended polystyrene / polyethylene blended high flame retardant extruded board includes the following components:

[0033]

[0034] The carrier of the masterbatch is polyperfluoroethylene propylene.

[0035] The method for preparing the above-mentioned polystyrene / polyethylene blended high flame retardant extruded board includes the following steps:

[0036] (1) Add the decolorized polystyrene recycled material into the mixer, heat to 150°C under nitrogen, and add butyl peroxide and benzoyl peroxide, mix well and keep stirring Stop stirring after 2h and cool to 50℃;

[0037] (2) Add polystyrene virgin material, polyethylene, color masterbatch and polyethylene grafted zinc maleate to the system in step (1), and heat again to 180°C under nitrogen to mix uniformly and Keep the temperature and stir for 1 hour, add decabromodiphenyl ether, silicon-based flame retardant, styrene-sodium acrylate and magnesium aluminum hydrotalcite and continue to sti...

Example Embodiment

[0040] Example 3: Polystyrene / polyethylene blended polystyrene / polyethylene blended high flame retardant extruded board includes the following components:

[0041]

[0042]

[0043] The carrier of the masterbatch is polyperfluoroethylene propylene.

[0044] The method for preparing the above-mentioned polystyrene / polyethylene blended high flame retardant extruded board includes the following steps:

[0045] (1) Put the decolorized polystyrene recycled material into the mixer, heat to 200°C under nitrogen, and add benzoyl peroxide and benzoyl peroxide, mix well and keep stirring Stop stirring after 5h and cool to 80℃;

[0046] (2) Add polystyrene virgin material, polyethylene, masterbatch and polyethylene grafted zinc maleate to the system in step (1), and heat again to 250°C under nitrogen flow to mix evenly and Keep the temperature and stir for 2h, add decabromodiphenyl ether, silicon flame retardant, styrene-sodium acrylate and magnesium aluminum hydrotalcite and continue to stir f...

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Abstract

The invention discloses a polystyrene/polyethylene blended high-flame-resistance extruded sheet. The polystyrene/polyethylene blended high-flame-resistance extruded sheet comprises a fresh polystyrene material, a recycled polystyrene material, polyethylene, styrene-sodium acrylate, magnalium hydrotalcite, decabromodiphenyl ether, silicon-based fire retardant, color master batch, benzoyl peroxide butyl ester, benzoyl peroxide, polyethylene grafted zinc maleate and foaming agent. The invention provides a production method correspondingly to obtain the extruded sheet with good flame resistance performance. The polystyrene/polyethylene blended high-flame-resistance extruded sheet and the production method thereof have the advantages that the recycled polystyrene material and the fresh polystyrene material are used jointly for producing the high-strength extruded sheet, so that production cost is reduced greatly; by dealing with the chain scission problem of the recycled material, the recycled material has better performance than ordinary waste; through addition of the auxiliary material polyethylene, proper solubilizing agent and other additives, product tenacity is improved, and the problems of embrittlement and easiness in breakage are solved; through addition of the decabromodiphenyl ether and the silicon-based fire retardant according to a certain ratio and combination with other additives, good flame resistance is achieved, and the oxygen resistance index can reach 48.

Description

technical field [0001] The invention relates to an extruded plastic board, in particular to a high flame-retardant extruded plastic board blended with polystyrene / polyethylene and a preparation method thereof. Background technique [0002] Existing external wall insulation materials on the market mainly use modified benzene board, extruded board and polyurethane. Among them, benzene board is the cheapest, and its insulation effect is average, and it will absorb water and deform. Plastic panels are much better than benzene panels. The thermal conductivity is lower than that of benzene panels, and the price is slightly higher. Polyurethane is the best performance among existing insulation materials. Lower than benzene board and extruded board, basically half the thickness of the polyurethane insulation layer can achieve the insulation effect of the original thickness of benzene board and extruded board, but the price is much higher than that of benzene board and extruded board...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L23/06C08L51/06C08K13/02C08K5/14C08K5/06C08J9/04B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08J9/04C08J2325/06C08J2423/06C08L25/06C08L2201/02C08L2205/035C08L2207/20C08L23/06C08L51/06C08K13/02C08K5/14C08K5/06Y02P70/10
Inventor 唐国东
Owner 南京欧格节能环保科技有限公司
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