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Graphene modified flame retardant polystyrene particle and extrusion and pelletizing method thereof

A polystyrene particle and graphene modification technology, which is applied in the field of extrusion and pelletization of graphene-modified flame-retardant polystyrene particles, can solve the problem of expensive graphene, imperfect polystyrene particle technology, and restrictions on graphite Solve the problems of industrialized production of ethylene flame-retardant polystyrene particles, and achieve the effects of high production efficiency, space saving and resource saving

Inactive Publication Date: 2018-12-18
南京法宁格节能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is well known that graphene is expensive, and the process of adding graphene materials to make polystyrene particles is not perfect, so it restricts the industrial production of graphene flame-retardant polystyrene particles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of graphene modified flame-retardant polystyrene particle of the present invention is prepared by mixing the following raw materials by weight:

[0030] Polystyrene: 98 parts, 1 part of graphene, 2 parts of plasticizer, 1 part of antioxidant, 80 parts of polystyrene resin, 3 parts of flame retardant, 6 parts of foaming agent, and 1 part of dispersant.

[0031] The melting index scope of described polystyrene is 6g / 10min, and described graphene is 10000 order graphene powder.

[0032] The polystyrene resin can be recycled polystyrene resin; the flame retardant is a novel non-HBCD polymer flame retardant; the blowing agent is a mixture of n-pentane and isopentane, and n-pentane and isopentane The volume ratio of pentane is 1:1.

[0033] The above-mentioned extrusion pelletizing method of a graphene modified flame-retardant polystyrene particle is carried out in the following steps:

[0034] The first step, material preparation: prepare each raw material by weight...

Embodiment 2

[0044] A kind of graphene modified flame-retardant polystyrene particle of the present invention is prepared by mixing the following raw materials by weight:

[0045] Polystyrene: 80 parts, 2 parts of graphene, 4 parts of plasticizer, 2 parts of antioxidant, 70 parts of polystyrene resin, 2 parts of flame retardant, 3 parts of blowing agent, 2 parts of dispersant.

[0046] The melt index of described polystyrene is 3g / 10min, and described graphene is 10000 order graphene powder.

[0047] The polystyrene resin can be recycled polystyrene resin; the flame retardant is a novel non-HBCD polymer flame retardant; the blowing agent is a mixture of n-pentane and isopentane, and n-pentane and isopentane The volume ratio of pentane is 1:1.

[0048] The above-mentioned extruding pelletizing method of graphene-modified flame-retardant polystyrene particles is the same as in Example 1, wherein the temperature of the screen changer in the third step can be set to 160°C, and the temperature o...

Embodiment 3

[0050] A kind of graphene modified flame-retardant polystyrene particle of the present invention is prepared by mixing the following raw materials by weight:

[0051] Polystyrene: 120 parts, 3 parts of graphene, 6 parts of plasticizer, 3 parts of antioxidant, 90 parts of polystyrene resin, 5 parts of flame retardant, 10 parts of blowing agent, 3 parts of dispersant.

[0052] The melt index of described polystyrene is 10g / 10min, and described graphene is 10000 order graphene powder.

[0053] The polystyrene resin can be recycled polystyrene resin; the flame retardant is a novel non-HBCD polymer flame retardant; the blowing agent is a mixture of n-pentane and isopentane, and n-pentane and isopentane The volume ratio of pentane is 1:1.

[0054] The above-mentioned extruding pelletizing method of graphene-modified flame-retardant polystyrene particles is the same as in Example 1, wherein the temperature of the screen changer in the third step can be set to 180°C, and the temperat...

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Abstract

The invention relates to a graphene modified flame retardant polystyrene particle and an extrusion and pelletizing method thereof, and belongs to the technical field of industrial production method ofgraphene modified flame retardant polystyrene particles. The technical problem to be solved by the present invention is to improve the production efficiency and achieve the industrial production of graphene modified flame retardant polystyrene particles. The technical scheme is that the graphene modified flame retardant polystyrene particle is prepared by mixing the following raw materials: polystyrene, graphene, a plasticizer, an antioxidant, a polystyrene resin, a flame retardant, a foaming agent and dispersing agent. The extrusion and pelletizing method comprises: 1, preparing materials, wherein various raw materials are prepared according to a certain weight part ratio; 2, preparing graphene masterbatch; and 3, preparing the graphene modified flame retardant polystyrene particles by using a twin-screw extruder and an underwater pelletizing system. According to the present invention, the method is used for preparing graphene modified flame retardant polystyrene particles, and further has characteristics of high production efficiency, environmental protection and resource saving.

Description

technical field [0001] The invention belongs to the technical field of industrial production methods of graphene-modified flame-retardant polystyrene particles, and in particular relates to a method for extruding and pelletizing graphene-modified flame-retardant polystyrene particles. Background technique [0002] Expandable polystyrene products have long-lasting thermal insulation, cushioning, shock resistance, corrosion resistance, anti-aging and certain fire performance. It was first displayed at the German Plastics Trade Fair and has a development history of more than 60 years. Expandable polystyrene materials are developing in the direction of low energy consumption and high performance. The new generation of high-performance expandable polystyrene material currently on the market was first invented by Pasteur of Germany, who added graphite to expandable polystyrene. Graphite itself is a good heat conductor, but due to the good infrared reflection ability of graphite, ...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08K13/02C08K3/04C08J9/14B29C47/92B29C48/92
CPCC08J9/141C08J2203/14C08J2203/182C08J2325/06C08J2425/06C08K2201/003C08L25/06C08L2201/02C08L2203/14C08L2205/025C08L2207/20C08K13/02C08K3/04
Inventor 郭鑫齐许鹏
Owner 南京法宁格节能科技股份有限公司
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