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Polystyrene/polypropylene blended heat preservation extruded sheet and preparation method thereof

A technology of polystyrene and polystyrene particles, which is applied in the field of extruded plastic boards, can solve the problems that the flame retardant performance cannot meet the standard and the oxygen index of the board cannot meet the requirements, and achieve the effects of improving the thermal insulation effect, increasing the hardness and increasing the density.

Inactive Publication Date: 2016-08-17
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

[0004] The current production of extruded board thick boards needs to add polystyrene materials with high fat melting, but the polystyrene materials currently on the market with high fat melting are generally inferior recycled materials, and inferior recycled materials will be mixed with some such as Substances such as mineral grease, which make the oxygen index of the produced sheet cannot meet the requirements, and the flame retardancy cannot meet the standard

Method used

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  • Polystyrene/polypropylene blended heat preservation extruded sheet and preparation method thereof
  • Polystyrene/polypropylene blended heat preservation extruded sheet and preparation method thereof
  • Polystyrene/polypropylene blended heat preservation extruded sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: a polystyrene / polypropylene blended thermal insulation extruded board, comprising the following components:

[0028]

[0029]

[0030] Each component is measured in parts by weight, wherein polystyrene particles are composed of polystyrene virgin material and polystyrene recycled material, and the mixing ratio is 3:1, and the carrier of the color masterbatch is polyperfluoroethylene propylene.

[0031] The preparation method of the polystyrene / polypropylene blended insulation extruded board in this embodiment comprises the following steps:

[0032] (1) Re-granulate recycled polystyrene materials, mix them with new polystyrene materials and add them to the mixer, add high-fat-soluble polypropylene, styrene-sodium acrylate, and benzoyl peroxide into the mixer Butyl ester and benzoyl peroxide, start the mixer to mix the materials, and heat the mixed materials to 130°C, keep stirring for 2 hours, then stop and cool;

[0033] (2) Add alkenyl succinate, a...

Embodiment 2

[0035] Embodiment 2: a polystyrene / polypropylene blended insulation extruded board, comprising the following components:

[0036]

[0037]

[0038] Each component is measured in parts by weight, wherein polystyrene particles are composed of polystyrene virgin material and polystyrene recycled material, and the mixing ratio is 3:1, and the carrier of the color masterbatch is polyperfluoroethylene propylene.

[0039] The preparation method of the polystyrene / polypropylene blended insulation extruded board in this embodiment comprises the following steps:

[0040] (1) Re-granulate recycled polystyrene materials, mix them with new polystyrene materials and add them to the mixer, add high-fat-soluble polypropylene, styrene-sodium acrylate, and benzoyl peroxide into the mixer Butyl ester and benzoyl peroxide, start the mixer to mix the materials, and heat the mixed materials to 150°C, keep stirring for 4 hours, then stop and cool;

[0041] (2) Add alkenyl succinate, ammonium ...

Embodiment 3

[0043]Embodiment 3: a polystyrene / polypropylene blended insulation extruded board, including the following components:

[0044]

[0045] Each component is measured in parts by weight, wherein polystyrene particles are composed of polystyrene virgin material and polystyrene recycled material, and the mixing ratio is 3:1, and the carrier of the color masterbatch is polyperfluoroethylene propylene.

[0046] The preparation method of the polystyrene / polypropylene blended insulation extruded board in this embodiment comprises the following steps:

[0047] (1) Re-granulate recycled polystyrene materials, mix them with new polystyrene materials and add them to the mixer, add high-fat-soluble polypropylene, styrene-sodium acrylate, and benzoyl peroxide into the mixer Butyl ester and benzoyl peroxide, start the mixer to mix the materials, and heat the mixed materials to 140°C, keep stirring for 3 hours, then stop and cool;

[0048] (2) Add alkenyl succinate, ammonium benzoate, zinc...

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Abstract

The invention discloses a polystyrene / polypropylene blended heat preservation extruded sheet. The polystyrene / polypropylene blended heat preservation extruded sheet is prepared from, by weight, 350-450 parts of polystyrene granules, 50-150 parts of high fat soluble polypropylene, 7-10 parts of styrene-sodium acrylate, 3-8 parts of benzoyl peroxide butyl ester, 1-5 parts of benzoyl peroxide, 4-6 parts of a nucleating agent, 2-2.4 parts of alkenyl succinic acid ester, 0.8-1.2 parts of zinc dialkyl dithiophosphate, 2-6 parts of ammonium benzoate, 2-5 parts of modified loess powder, 20-28 parts of fire retardant, 6-10 parts of color master batches and 8-12 parts of a foaming agent. In the formula, high fat soluble polypropylene and other materials are mixed with polystyrene raw materials, a small number of leftover materials are added, and the sheet with the thickness being 10 cm or above can be produced; the sheet can reach national B1-level fire rating by adding a small quantity of the fire retardant, and the physical performance of the sheet is not affected.

Description

technical field [0001] The invention relates to an extruded plastic board, in particular to a polystyrene / polypropylene blended thermal insulation extruded board. Background technique [0002] Existing external wall insulation materials on the market mainly use benzene modified board (EPS), polyurethane board and extruded board (XPS). Among them, benzene board is the cheapest, and the insulation effect is average, and it will absorb water and deform. After the insulation layer is completed, it needs to be Waterproof and other measures. Polyurethane is the best performance among existing insulation materials. Polyurethane is used as insulation material in refrigerators and cold storage. The thermal conductivity is far lower than that of benzene board and extruded board. Basically, half the thickness of polyurethane insulation layer can reach The insulation effect of the original thickness of benzene board and extruded board, but the price is much higher than that of benzene ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L23/12C08L47/00C08K13/06C08K3/34C08K5/14C08K5/098C08K5/5398B29C47/92B29C48/92
CPCC08L25/06B29C48/92B29C2948/9259B29C2948/92704C08K2201/014C08L2201/02C08L2203/14C08L2205/025C08L2205/035C08L2207/20C08L23/12C08L47/00C08K13/06C08K3/346C08K5/14C08K5/098C08K5/5398
Inventor 唐国东
Owner 南京欧格节能环保科技有限公司
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