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EPS flame-retardant masterbatch and preparation method thereof

A technology of flame retardant masterbatch and masterbatch, which is applied in the field of flame retardant masterbatch production, which can solve problems such as difficulty in mixing evenly, polluting the surrounding environment, and easy to raise dust, etc., to achieve increased gloss and processing performance, good flame retardant effect, good compatibility

Pending Publication Date: 2019-04-09
山东东信新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the flame retardants currently used are powders, which are not easy to mix evenly when mixed with raw materials, and it is easy to raise dust when mixed, pollute the surrounding environment and affect health, so a flame retardant masterbatch is needed to replace Powder Flame Retardant

Method used

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  • EPS flame-retardant masterbatch and preparation method thereof
  • EPS flame-retardant masterbatch and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] An EPS flame retardant masterbatch, prepared from the following raw materials in parts by weight: 60 parts of polystyrene, 30 parts of brominated SBS, 20 parts of methyl octabromoether, 5 parts of graphite masterbatch, and 3 parts of barium stearate , 3 parts of aluminum dioxide, 2 parts of polyethylene wax, 3 parts of talcum powder, 10104 parts of antioxidant.

[0021] The graphite masterbatch is 600 mesh natural flake graphite.

[0022] The present invention also provides a preparation method of EPS flame retardant masterbatch, comprising steps:

[0023] (1) taking various raw materials according to the stated parts by weight;

[0024] (2) Add the various raw materials taken by weighing into the high-efficiency mixer and fully mix;

[0025] (3) Add the mixed material into a twin-screw extruder, and melt and extrude to obtain a flame-retardant masterbatch.

[0026] The melt extrusion temperature in the step (3) is 220° C., the screw speed of the twin-screw extruder ...

Embodiment 2

[0028] An EPS flame retardant masterbatch, prepared from the following raw materials in parts by weight: 80 parts of polystyrene, 40 parts of brominated SBS, 30 parts of methyl octabromoether, 10 parts of graphite masterbatch, and 5 parts of barium stearate , 8 parts of aluminum dioxide, 6 parts of polyethylene wax, 8 parts of talcum powder, and 10109 parts of antioxidant.

[0029] The graphite masterbatch is 700 mesh natural flake graphite.

[0030] The present invention also provides a preparation method of EPS flame retardant masterbatch, comprising steps:

[0031] (1) taking various raw materials according to the stated parts by weight;

[0032] (2) Add the various raw materials taken by weighing into the high-efficiency mixer and fully mix;

[0033] (3) Add the mixed material into a twin-screw extruder, and melt and extrude to obtain a flame-retardant masterbatch.

[0034] The melt extrusion temperature in the step (3) is 220° C., the screw speed of the twin-screw extr...

Embodiment 3

[0036] An EPS flame retardant masterbatch prepared from the following raw materials in parts by weight: 70 parts of polystyrene, 34 parts of brominated SBS, 26 parts of methyl octabromoether, 7.5 parts of graphite masterbatch, and 4 parts of barium stearate , 6 parts of aluminum dioxide, 4.2 parts of polyethylene wax, 5 parts of talcum powder, and 10106 parts of antioxidant.

[0037] The graphite masterbatch is 800 mesh natural flake graphite.

[0038] The present invention also provides a preparation method of EPS flame retardant masterbatch, comprising steps:

[0039] (1) taking various raw materials according to the stated parts by weight;

[0040] (2) Add the various raw materials taken by weighing into the high-efficiency mixer and fully mix;

[0041] (3) Add the mixed material into a twin-screw extruder, and melt and extrude to obtain a flame-retardant masterbatch.

[0042] The melt extrusion temperature in the step (3) is 220° C., the screw speed of the twin-screw ex...

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Abstract

The invention discloses EPS flame-retardant masterbatch and a preparation method thereof and belongs to the technical field of flame-retardant masterbatch production. The EPS flame-retardant masterbatch is prepared from the following raw materials in parts by weight: 60-80 parts of polystyrene, 30-40 parts of brominated SBS, 20-30 parts of methyl octabromo ether, 5-10 parts of graphite masterbatch, 3-5 parts of barium stearate, 3-8 parts of aluminium dioxide, 2-6 parts of polyethylene wax, 3-8 parts of talc powder and 4-9 parts of an antioxidant 1010. The flame retardance of the EPS flame-retardant is improved greatly as a result of synergistic effects of raw material components, and the EPS flame-retardant masterbatch is good in temperature resistance and small in adding amount. High performance flame retardance is achieved with a relatively low adding amount, and the production process is simplified and the cost is lowered.

Description

technical field [0001] The invention relates to the technical field of flame retardant masterbatch production, in particular to an EPS flame retardant masterbatch and a preparation method thereof. Background technique [0002] Polystyrene (PS) resin is one of the five general-purpose synthetic resins, and generally ranks fourth in terms of output after PE, PVC and PP. In the early stage of styrene-based resin development, only general-purpose polystyrene (GPPS) was produced, which was hard and brittle, with low mechanical strength, poor heat resistance and flammability. For this reason, people have done a lot of improvement work, forming high impact polystyrene (HIPS), expandable polystyrene (EPS), extrudable polystyrene (XPS) and so on. EPS is a foam material with closed-cell structure formed by foaming and molding with polystyrene resin as the main component. However, most organic polymer materials have different degrees of flammability in the air. In order to realize th...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L53/02C08L23/06C08K13/02C08K5/06C08K3/22C08K3/04C08K5/098C08K3/34C08J3/22
CPCC08J3/226C08J2325/06C08J2423/06C08J2425/06C08J2453/02C08K2003/2227
Inventor 郭安鹏李善录
Owner 山东东信新材料科技股份有限公司
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