Preparation method of intumescent flame retardant plastic

A technology of intumescent flame retardant and plastics, which is applied in the field of flame retardant plastic preparation, and can solve the problems that construction and decoration materials cannot meet the needs of the society and hidden dangers in application safety

Inactive Publication Date: 2016-07-13
王欣欣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On July 1, 2008, the national standard "Flame Retardant Products and Components Combustion Performance Requirements and Labels in Public Places" was implemented. Today's ordinary construction and decoration materials are far from being able to meet the needs of society.
Plastic products are flammable, which brings many hidden dangers to the application safety of their products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] According to the proportion: polypropylene 40%-50%, ricinoleic acid 10%-15%, carbon black 10%-15%, expanded graphite 20%-30% and red phosphorus 10%-15%, take out each component, the total The weight is 100kg, spare.

[0017] The preparation method is:

[0018] 1. Mix polypropylene and red phosphorus according to the ratio of 4:1. After fully mixing, use a flat twin-screw extruder to extrude and granulate at 180°C and a pressure of 5 MPa. Base material A;

[0019] 2. Add ricinoleic acid to the base material A according to the ratio of 5:1, stir well, so that the base material A is evenly covered with ricinoleic acid;

[0020] 3. Add carbon black and expanded graphite to base material A covered with ricinoleic acid and stir fully;

[0021] Ricinoleic acid is used in the preparation of surfactants, plasticizers, lubricating oil additives, and also in the preparation of sebacic acid, heptanoic acid, etc. Therefore, the effect of ricinoleic acid can make carbon black and...

Embodiment 2

[0026] According to the proportion: polypropylene 40%-50%, ricinoleic acid 10%-15%, carbon black 10%-15%, expanded graphite 20%-30% and red phosphorus 10%-15%, take out each component, the total The weight is 100kg, spare.

[0027] The preparation method is:

[0028] 1. Mix polypropylene and red phosphorus according to the ratio of 4:1. After fully mixing, use a flat twin-screw extruder to extrude and granulate at 210°C and a pressure of 10 MPa. Base material A;

[0029] 2. Add ricinoleic acid to the base material A according to the ratio of 5:1, stir well, so that the base material A is evenly covered with ricinoleic acid;

[0030] 3. Add carbon black and expanded graphite to base material A covered with ricinoleic acid and stir fully;

[0031] Ricinoleic acid is used in the preparation of surfactants, plasticizers, lubricating oil additives, and also in the preparation of sebacic acid, heptanoic acid, etc. Therefore, the effect of ricinoleic acid can make carbon black an...

Embodiment 3

[0036] According to the proportion: polypropylene 40%-50%, ricinoleic acid 10%-15%, carbon black 10%-15%, expanded graphite 20%-30% and red phosphorus 10%-15%, take out each component, the total The weight is 100kg, spare.

[0037] The preparation method is:

[0038] 1. Mix polypropylene and red phosphorus according to the ratio of 4:1. After fully mixing, use a flat twin-screw extruder to extrude and granulate at 195°C and a pressure of 8 MPa. Base material A;

[0039] 2. Add ricinoleic acid to the base material A according to the ratio of 5:1, stir well, so that the base material A is evenly covered with ricinoleic acid;

[0040] 3. Add carbon black and expanded graphite to base material A covered with ricinoleic acid and stir fully;

[0041] Ricinoleic acid is used in the preparation of surfactants, plasticizers, lubricating oil additives, and also in the preparation of sebacic acid, heptanoic acid, etc. Therefore, the effect of ricinoleic acid can make carbon black and...

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PUM

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Abstract

The invention relates to a preparation method of intumescent flame retardant plastic. The intumescent flame retardant plastic comprises the following components: polypropylene, ricinoleic acid, carbon black, expandable graphite and red phosphorus; the intumescent flame retardant plastic comprises the following components in percentages by mass: 40-50% of polypropylene, 10-15% of ricinoleic acid, 10-15% of carbon black, 20-30% of expandable graphite, and 10-15% of red phosphorus. The plastic itself does not combust and can prevent combustion, that is the other substance oxygen of combustion conditions is considered; when the plastic meets fire, the plastic rapidly expands, a flame point is enveloped in the plastic, and peripheral air is discharged to the outside, so that peripheral air does not exist, and generation of fire hazard is prevented by a physical method.

Description

technical field [0001] The invention relates to a method for preparing flame-retardant plastics, in particular to a method for preparing expanded flame-retardant plastics. Background technique [0002] The United States is one of the countries with relatively sound flame retardant technical regulations in the world. It has made flame retardant regulations on public entertainment and all aspects of daily life. For example, the United States has made regulations on the flame retardant performance of children's pajamas and general clothing. . Canada, Australia, and the United Kingdom have also formulated relevant technical regulations, such as requirements for the flame retardant performance of children's evening wear, and the United Kingdom also has regulations on the flame retardant performance of adult evening wear, and stipulates test methods. However, our country is still blank in this regard, and has only formulated mandatory national standards for flame-retardant clothi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/02C08K3/04C08K3/02C08K5/09
Inventor 王欣欣
Owner 王欣欣
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