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Halogen-free flame-retardant polypropylene compound and preparation method thereof

A polypropylene and composite technology, applied in the field of flame retardant materials, can solve the problems of environmental pollution and high cost

Inactive Publication Date: 2017-04-12
FUJIAN QUANZHOU CHAOWEN SHOES IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of environmental pollution and high cost in the prior art, the present invention provides a novel halogen-free flame-retardant polypropylene compound, and the present invention also provides a preparation method of the polypropylene compound

Method used

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  • Halogen-free flame-retardant polypropylene compound and preparation method thereof
  • Halogen-free flame-retardant polypropylene compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 200g PP to the double-roller heating machine with a roll temperature of 175°C to 180°C. After melting the rolls, add 44g APP and 30gZnO and knead for 8 minutes to fully disperse the flame retardant and additives in PP. Press hot on a flat vulcanizing machine for 3 minutes, then cool and shape in a 15MPa cold flat vulcanizing machine for 5 minutes. The oxygen index of the thermoplastic produced in this example is 34, and the tensile strength, flexural strength and impact strength are respectively 21.27MPa, 52.25MPa, and 4.83KJ / m 2 .

Embodiment 2

[0017] First add 100g PP to the double-roller heating machine with a roll temperature of 175°C to 180°C. After melting the rolls, add 20g APP, 2gPER, 10g starch and 2gMEL, and knead for 9 minutes to fully disperse the flame retardant and additives in PP. , hot-pressed in a 15MPa 180°C flat vulcanizer for 3min, and then cooled and shaped in a 15MPa cold flat vulcanizer for 5min. The oxygen index of the thermoplastic produced in this example is 33.4, and the tensile strength, flexural strength and impact strength are respectively 21.56MPa, 52.87MPa, and 4.99KJ / m 2 .

Embodiment 3～10

[0019] Each raw material and proportioning are shown in Table 1, and the mixing time from embodiment 3 to 10 is respectively 8,10,9,9,15,11,13,9min, and hot pressing time is respectively 2,3,3,3, 5, 4, 3, 5 min, other steps and conditions are the same as in Example 2.

[0020] Table 1 Embodiment 3~10

[0021]

[0022] Table 2 The flame retardancy and mechanical properties of the materials of Examples 3 to 10

[0023]

[0024] It can be seen from the above table that the polypropylene composite material obtained in the present invention has good flame retardancy and mechanical properties.

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Abstract

The invention relates to thermoplastics with flame retardation performance, specifically to a halogen-free flame-retardant polypropylene compound. According to a technical scheme in the invention, the halogen-free flame-retardant polypropylene compound comprises polypropylene, a fire retardant and an additive, wherein the weight of the fire retardant accounts for 20 to 24% of the weight of polypropylene and the weight of the additive accounts for 10 to 18% of the weight of polypropylene. The invention also provides a preparation method for the halogen-free flame-retardant polypropylene compound. The halogen-free flame-retardant polypropylene compound has good flame retardation effect and mechanical properties.

Description

technical field [0001] The invention relates to flame-retardant materials, in particular to a halogen-free flame-retardant polypropylene compound and a preparation method thereof. Background technique [0002] At present, the mainstream flame retardant materials in my country are brominated flame retardant materials. However, as the requirements for environmental protection are getting higher and higher, this kind of brominated flame retardant material is facing the fate of being eliminated because of its easy pollution. Therefore, according to the new environmental protection requirements, more and more people have begun to study halogen-free flame-retardant materials, but domestic halogen-free flame-retardant materials are expensive, and the preparation process is complicated, which cannot be used in large-scale industries. [0003] The European Patent Office EP0735119A1 publication discloses a phosphorus-nitrogen flame retardant for polyethylene. The addition of the phos...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L3/02C08K3/32C08K3/22C08K5/053C08K5/3492
CPCC08L23/12C08K3/22C08K3/32C08K2003/2296C08K2003/323C08L2201/02C08L2201/22C08L3/02C08K5/053C08K5/34922
Inventor 苏文招
Owner FUJIAN QUANZHOU CHAOWEN SHOES IND CO LTD
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