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Preparation method of expanding flame-retardant plastic

An intumescent flame retardant and plastic technology, applied in the field of flame retardant plastic preparation, can solve problems such as hidden dangers of application safety

Inactive Publication Date: 2019-05-07
陆伯川
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

[0017] 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.

[0018] The preparation method is:

[0019] 1. Mix polypropylene and red phosphorus according to the ratio of 4:1. After fully mixing and evenly preparing, use a flat twin-screw extruder to extrude and granulate at 180°C and a pressure of 5 MPa. Base material A;

[0020] 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;

[0021] 3. Add carbon black and expanded graphite to base material A covered with ricinoleic acid and stir fully;

[0022] 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 ...

Embodiment 2

[0027] 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.

[0028] The preparation method is:

[0029] 1. Mix polypropylene and red phosphorus according to the ratio of 4:1. After fully mixing and evenly preparing, use a flat twin-screw extruder to extrude and granulate at 210°C and a pressure of 10 MPa. Base material A;

[0030] 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;

[0031] 3. Add carbon black and expanded graphite to base material A covered with ricinoleic acid and stir fully;

[0032] 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...

Embodiment 3

[0037] 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.

[0038] The preparation method is:

[0039] 1. Mix polypropylene and red phosphorus according to the ratio of 4:1. After fully mixing and evenly preparing, use a flat twin-screw extruder to extrude and granulate at 195°C and a pressure of 8 MPa. Base material A;

[0040] 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;

[0041] 3. Add carbon black and expanded graphite to base material A covered with ricinoleic acid and stir fully;

[0042] 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 ...

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PUM

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Abstract

The invention relates to a preparation method of expanding flame-retardant plastic. The expanding flame-retardant plastic comprises the following components: polypropylene, ricinoleic acid, carbon black, expanded graphite and red phosphorus, wherein the mass ratios of the components of the expanding flame-retardant plastic are as the follows in parts by mass: 40%-50% of the polypropylene, 10%-15%of the ricinoleic acid, 10%-15% of the carbon black, 20-30% of the expanded graphite and 10%-15% of the red phosphorus. According to the invention, self-burning is avoided, and combustion is further prevented, namely, the other substance oxygen of the combustion condition is considered. The expanding flame-retardant plastic disclosed by the invention is expanded quickly when encounters fire, flamepoints are wrapped in the expanded flame-retardant plastic, and surrounding air is isolated out, so that existence of the surrounding air is avoided, and occurrence of a fire disaster is prevented from physical significance.

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): C08L23/12C08K13/04C08K7/24C08K5/09C08K3/04C08K3/02
Inventor 陆伯川
Owner 陆伯川
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