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Halogen-free flame-retardant polypropylene composite material and preparation method thereof

A flame retardant polypropylene and composite material technology, applied in the field of polymer material modification, can solve human and environmental hidden dangers, toxicity, suffocation and other problems, achieve excellent mesoporous properties, reduce smoke density, and large specific surface area.

Pending Publication Date: 2021-11-19
滁州格美特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional halogenated flame retardants have high flame retardant efficiency, but they will release a large amount of toxic and corrosive gases when burned, which poses great hidden dangers to humans and the environment
Halogen-free flame retardant materials will not release toxic and corrosive gases during combustion, but the substrate will still degrade during combustion and produce a lot of smoke. When the human body absorbs a large amount of smoke, it is easy to cause suffocation and death

Method used

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  • Halogen-free flame-retardant polypropylene composite material and preparation method thereof
  • Halogen-free flame-retardant polypropylene composite material and preparation method thereof
  • Halogen-free flame-retardant polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 75.4 parts of the copolymer polypropylene PP K7227H (Wuhan ethylene), 20 parts of halogen-free flame WR02B (Suzhou An Hongtai), 4 parts of parts made of hollow double shell mesoporous SiO 2 Material, 0.3 parts of a thermal stabilizer 1010 and 0.3 parts of calcium stearate processing aid is added in the aspect ratio of the mixed high-speed mixer is 36: 1 twin screw extruder melt mixing dispersion, extrusion granulation, to obtain a new free flame retardant polypropylene composite material. Wherein the twin screw extruder from the feeding zone to the head temperature were 170 ℃, 170 ℃, 180 ℃, 180 ℃, 180 ℃, 190 ℃, 190 ℃, 195 ℃, 195 ℃, 195 ℃.

[0031] Double hollow mesoporous SiO 2 Preparation method:

[0032] Preparation of emulsion dispersion of a styrene:

[0033] (1) take 15mL of styrene, respectively, after concentration of 10% NaOH solution and washed three times with distilled water reserve;

[0034] (2) are respectively connected to the three-necked flask with a mechani...

Embodiment 2

[0047] 76.4 parts of the homopolymer polypropylene PP T30S (Petrochemical), 18 parts of halogen-free flame WR02B (Suzhou An Hongtai), 5 parts of parts made of hollow double shell mesoporous SiO 2Material, 0.3 parts of a heat stabilizer 168 and 0.3 parts of erucamide processing aid are mixed in a high speed mixer uniformly added an aspect ratio of 40: 1 twin screw extruder melt mixing dispersion, extrusion granulation, to give halogen flame retardant polypropylene composite material. Wherein the twin screw extruder from the feeding zone to the head temperature were 170 ℃, 170 ℃, 180 ℃, 180 ℃, 180 ℃, 190 ℃, 190 ℃, 200 ℃, 200 ℃, 200 ℃.

[0048] Double hollow mesoporous SiO 2 Preparation method:

[0049] Preparation of emulsion dispersion of a styrene:

[0050] (1) take 15mL of styrene, respectively, after concentration of 9% NaOH solution and washed three times with distilled water reserve;

[0051] (2) are respectively connected to the three-necked flask with a mechanical stirrer, c...

Embodiment 3

[0064] 74.2 parts of the copolymer polypropylene PP EA5075 (Basel), 21 parts of halogen-free flame WR02B (Suzhou An Hongtai), 4 parts of parts made of hollow double shell mesoporous SiO 2 Material, 0.2 parts of a heat stabilizer and 1010 parts of a heat stabilizer 0.2 DSTDP, 0.4 parts of zinc stearate processing aid is added after the high speed mixer mixed aspect ratio of 38: 1 twin screw extruder melt mixing dispersion , extrusion granulation, halogen-free flame retardant polypropylene composite material. Wherein the twin screw extruder from the feeding zone to the head temperature were 180 ℃, 180 ℃, 185 ℃, 185 ℃, 190 ℃, 190 ℃, 190 ℃, 200 ℃, 200 ℃, 195 ℃.

[0065] Double hollow mesoporous SiO 2 Preparation method:

[0066] Preparation of emulsion dispersion of a styrene:

[0067] (1) take 15mL of styrene, respectively, after concentration of 9% NaOH solution and washed three times with distilled water reserve;

[0068] (2) are respectively connected to the three-necked flask wit...

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PUM

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Abstract

The invention discloses a halogen-free flame-retardant polypropylene composite material and a preparation method thereof. The composite material is prepared from, by weight, 71-80.6 parts of polypropylene, 16-22 parts of a halogen-free flame retardant, 3-6 parts of double-layer hollow mesoporous SiO2, 0.2-0.5 part of a heat stabilizer and 0.2-0.5 part of a processing aid. The double-layer hollow mesoporous SiO2 is dispersed in the matrix, and the mesoporous structure forms a 'maze effect' to hinder the transfer of volatile gas and surface combustion heat. The double-layer hollow mesoporous SiO2 can improve the dispersion effect of the halogen-free flame retardant, and can improve the flame retardant effect of the material. The surface polarity of the mesoporous SiO2 material is large, the adhesion is good, and the melt strength of the material in the combustion process can be improved.

Description

Technical field [0001] The present invention belongs to the technical field of polymer-modified material, particularly to a halogen free flame retardant polypropylene composite material and its preparation method. Background technique [0002] Because of its light weight polypropylene advantages, excellent mechanical properties, good chemical resistance, weather resistance, etc., are widely used in industry, agriculture, automotive, home appliances, electrical and electronic fields, particularly in home appliances, electrical and electronic fields application, the material will have the required flame retardant properties. Conventional halogen flame retardant has high flame retardant efficiency, but when burned release substantial amounts of toxic and corrosive gases, humans and the environment there is a great risk. And halogen-free flame retardant material, in the combustion process, although not release toxic or corrosive gases, but the combustion process still degrade matrix ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08K7/26C08K3/04
CPCC08K7/26C08K3/04C08L23/14C08L2201/02C08L2201/22C08L23/12
Inventor 徐光钰杨桂生计娉婷张明志龚国欢王登攀商红彬
Owner 滁州格美特科技有限公司
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