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Flame-retardant polypropylene plastic composition and preparation method thereof

A technology for polypropylene plastics and compositions, which is applied in the field of preparing polypropylene plastic compositions, can solve the problems of poor flame retardant effect of flame retardant polypropylene, poor environmental protection, toxic gas generation, etc. Conducive to environmental protection and improved flame retardancy

Inactive Publication Date: 2011-11-09
GUANGDONG RONGTAI IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flame-retardant polypropylene plastic composition and its preparation method, which can solve the problem that the traditional flame-retardant polypropylene uses bromine-containing flame retardants and antimony-containing compounds, which produces toxic gas during combustion and is not environmentally friendly. , while the flame retardant polypropylene of hydroxide has poor flame retardant effect, poor performance, and high cost.

Method used

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  • Flame-retardant polypropylene plastic composition and preparation method thereof
  • Flame-retardant polypropylene plastic composition and preparation method thereof
  • Flame-retardant polypropylene plastic composition and preparation method thereof

Examples

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preparation example Construction

[0034] The preparation method of the above-mentioned flame-retardant polypropylene plastic composition specifically comprises the following steps:

[0035] Get each raw material that prepares flame-retardant type polypropylene plastic composition according to above-mentioned prescription;

[0036] Add the waste melamine plastic powder into the high-speed mixer, add the ethanol solution of the coupling agent (that is, add the coupling agent to ethanol to form the ethanol solution of the coupling agent), and mix at a stirring speed of 750-1500 for at least 1 minute Finally, place it for 5-10 minutes, then mix it at a stirring speed of 750-150 for 1 minute, then place it for 5-10 minutes;

[0037] Then add other components into the high-speed mixer, mix at a stirring speed of 750-1500 for 1-2 minutes, and then discharge, and the obtained mixture is a flame-retardant polypropylene plastic composition.

[0038] The above method may also include the following steps:

[0039] After...

Embodiment 1

[0055] This embodiment provides a kind of flame-retardant polypropylene plastic composition, and each raw material is taken according to the following formula:

[0056]

[0057] The preparation method of the above-mentioned flame-retardant polypropylene plastic composition is as follows: first, the waste melamine plastic powder obtained by crushing the waste melamine plastic tableware is weighed into a high-speed mixer according to the formula ratio, and the coupling agent ethanol solution is added, After mixing for 1 minute, place it for 5-10 minutes, then mix it at high speed for 1 minute, and leave it for 5-10 minutes; then add other components into the high-speed mixer, mix it at high speed for 1-2 minutes, and then discharge, the obtained mixture is The flame-retardant polypropylene plastic composition; the discharged mixture can be added to a parallel co-rotating screw extruder (screw diameter: Φ32mm, screw aspect ratio 32:1, screw combination mode is medium and low sh...

Embodiment 2

[0061] This embodiment provides a kind of flame-retardant polypropylene plastic composition, and each raw material is taken according to the following formula:

[0062]

[0063] The preparation method of the flame-retardant polypropylene plastic composition in this example is basically the same as that in Example 1, and reference can be made to Example 1, which will not be repeated here.

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Abstract

The invention discloses a flame-retardant polypropylene plastic composition and a preparation method thereof, and belongs to the field of polypropylene plastic preparation. The composition comprises the following components in part by mass: 1,400 to 1,900 parts of polypropylene, 100 to 600 parts of waste melamine plastic powder, 0.5 to 6 parts of coupling agent, 6 to 14 parts of silicon oil, 1 to 3 parts of antioxidant and 1 to 100 parts of toughening agent. The waste melamine plastic powder, the coupling agent, the silicon oil, and the antioxidant are added into the polypropylene, and the flame-retardant polypropylene plastic composition is formed; the waste melamine plastic powder modifies the polypropylene, so that the bending strength, bending modulus and distortion temperature of the composition are greatly improved, the forming shrinkage is obviously reduced and the flame retardancy is obviously improved; and the flame-retardant polypropylene plastic composition is prepared at low cost, and waste plastics are recycled, so that the environment is protected.

Description

technical field [0001] The invention relates to the field of preparation of polypropylene plastic compositions, in particular to a flame-retardant polypropylene plastic composition and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a general-purpose plastic with large output and consumption at present, and has been widely used in various fields of national economy. However, since polypropylene is a flammable substance, many applications require its flame retardancy. The traditional flame-retardant polypropylene uses bromine-containing flame retardants and antimony-containing compounds. However, bromide will produce toxic gases during combustion, and antimony trioxide powder is toxic, which has a negative impact on human health and the environment. Therefore, both the EU RoHS directive and the WEEE directive require that bromide and antimonide should not be contained in home appliances, electronic information and other products. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L61/28C08L23/00C08L53/02C08L23/16C08L83/04
Inventor 杨明山李林楷罗海平羽信全秦忠
Owner GUANGDONG RONGTAI IND
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