Halogen-free flame-retardance anti-static polypropylene composite material and preparation methods thereof

A flame retardant, antistatic and composite material technology, applied in the field of material chemistry, can solve the problems of large amount of antistatic agent, non-environmental protection of flame retardant, high toxicity of smoke, etc., and achieve excellent antistatic performance, reduce impact, and reduce price low effect

Inactive Publication Date: 2014-11-12
应急管理部四川消防研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the current flame retardant antistatic polypropylene materials, which are not environmentally friendly, the smoke is highly toxic, the antistatic agent is added in a large amount, and it is not durable, the present invention provides a non-halogen flame retardant technology with permanent antistatic Halogen-free flame retardant and antistatic polypropylene composites with electrostatic capacity, excellent mechanical properties and processability

Method used

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  • Halogen-free flame-retardance anti-static polypropylene composite material and preparation methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0037] Weigh 70g of copolymerized polypropylene; 7g of conductive carbon black, with an average particle size of 60nm and a specific surface area of ​​200m 2 / g; conduction promoter 30g, melt index 15g / 10min, test conditions 2.16kg, 190°C, including 20g high-density polyethylene, 5g medium-density polyethylene, 5g low-density polyethylene; silane-coated ammonium polyphosphate 42.05 g, 21g of dipentaerythritol, the purity of dipentaerythritol is 85wt%, and 1.95g of molecular sieves to obtain 65g of halogen-free intumescent flame retardant.

[0038] A high-speed mixer was used to mix the raw materials for 3 minutes, and then a screw extruder was used to melt, mix and extrude to obtain 172 g of a halogen-free flame-retardant and antistatic polypropylene composite material.

[0039]The screw speed of the extruder is 100rpm, the temperature of the feed section of the extruder is 165°C, the temperature of the compression section is 165°C, the temperature of the plasticizing section ...

Embodiment 3

[0042] Weigh 15g of copolymerized polypropylene, 60g of homopolypropylene; 5g of carbon nanotubes, 10-20nm in diameter, 30μm in length; 25g of high-density polyethylene, with a melt index of 10g / 10min, and the test conditions are 2.16kg, 190°C; melamine Coated ammonium polyphosphate 37.1g, dipentaerythritol 12.4g, dipentaerythritol purity 90wt%, molecular sieve 3g, zinc oxide 2.5g, obtained 55g halogen-free intumescent flame retardant; antioxidant 0.8g.

[0043] A high-speed mixer was used to mix the raw materials for 5 minutes, and then a screw extruder was used to melt, mix and extrude to obtain 160.8 g of a halogen-free flame-retardant antistatic polypropylene composite material.

[0044] The screw speed of the extruder is 300rpm, the temperature of the feed section of the extruder is 155°C, the temperature of the compression section is 175°C, the temperature of the plasticizing section is 175°C, the temperature of the homogenization section is 185°C, and the die temperature...

Embodiment 4

[0047] Weigh 85g of homopolypropylene; 4g of conductive carbon fiber, diameter 7μm, length 3mm; medium density polyethylene 15g, melt index 25g / 10min, test condition is 2.16kg, 190°C; epoxy resin coated ammonium polyphosphate 10g, silane 20.55g of coated ammonium polyphosphate, 12.2g of dipentaerythritol with a purity of 90wt%, 0.5g of kaolin, 1g of sepiolite, and 0.75g of zinc borate were mixed to form 45g of halogen-free intumescent flame retardant; 0.5g of light stabilizer.

[0048] First, use a high-speed mixer to mix the homopolypropylene and the halogen-free intumescent flame retardant for 3 minutes, then use a screw extruder to melt and mix and extrude to obtain a flame retardant composition A; the screw speed of the extruder is 300rpm, extruded The temperature of the feed section of the machine is 155°C, the temperature of the compression section is 165°C, the temperature of the plasticizing section is 185°C, the temperature of the homogenization section is 185°C, and t...

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Abstract

The invention provides a halogen-flame-retardance anti-static polypropylene composite material, belonging to the field of material chemistry. The composite material is prepared from the following raw materials in parts by mass: 70-90 parts of polypropylene, 3-7 parts of inorganic conductive filler, 10-30 parts of conductive promoter and 35-65 parts of halogen-free inrumescent flame retardant. The invention further provides two methods for preparing the composite material. Compared with a traditional flame-retardant anti-static polypropylene composite material, the material is prepared by a halogen-free flame-retardant technology and has permanent anti-static capability, excellent mechanical performance and excellent processing performance.

Description

technical field [0001] The invention relates to a polypropylene composite material, in particular to a halogen-free flame-retardant and antistatic polypropylene composite material and a preparation method thereof, belonging to the field of material chemistry. Background technique [0002] Polypropylene is one of the resins with the largest output. It has the advantages of good comprehensive performance, strong processability, and light specific gravity. It is widely used in many fields such as construction, industrial production, transportation, electronics, packaging, etc. Its products include pipes, plates, etc. , film, injection products, woven products, fibers, etc. The limiting oxygen index of polypropylene is only 18, which is a flammable material with a high fire hazard; at the same time, polypropylene is an insulating material with a surface resistivity as high as 10. 16 Ω, the surface is prone to static electricity accumulation, which may cause adverse phenomena su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L23/08C08K13/06C08K3/04C08K9/06C08K9/10C08K3/32C08K7/00C08K7/06C08K3/34C08K3/38C08K5/06B29C47/92B29C48/92
CPCC08L23/14B29C48/92B29C2948/92704C08K2201/001C08K2201/003C08K2201/006C08K2201/011C08L23/12C08L2201/02C08L2201/04C08L2201/22C08L2205/025C08L2205/03C08L2205/035C08L2207/062C08L2207/066C08L23/06C08K13/06C08K3/04C08K9/10C08K2003/323C08K5/06C08K3/34C08K7/24C08K2003/2296C08K7/06C08K3/346C08K3/38
Inventor 尹朝露李风张翔葛欣国张帆李平立
Owner 应急管理部四川消防研究所
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