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High-performance polypropylene nano composite material and preparation method thereof

A technology of nanocomposite materials and polypropylene, which is applied in the field of high-performance polypropylene nanocomposites, preparation of composite materials, and polypropylene nanocomposites. Molding performance, improvement of material properties, and improvement of dispersion effect

Active Publication Date: 2012-07-11
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although adding a small amount of nanoparticles alone can obtain considerable performance improvement, it often fails to meet the end-use performance index and cost requirements of the product.

Method used

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  • High-performance polypropylene nano composite material and preparation method thereof
  • High-performance polypropylene nano composite material and preparation method thereof
  • High-performance polypropylene nano composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Weigh 30% of polypropylene by weight, 50% of organoclay Nanocor I.44P, 20% of maleic anhydride grafted polypropylene, 0.2% of Irganox 1010, 0.2% of Igrafos 168, and 0.4% of Negonox DSTP. Dry-mix in the mixer for 5 minutes, then add to the twin-screw extruder to melt and extrude to granulate. The head temperature is 200°C, the speed of the twin-screw extruder is 600 rpm, and the clay masterbatch M50 is prepared.

Embodiment 2

[0044] Take by weight 97.5% of polypropylene, the clay masterbatch M50 that embodiment 1 makes is 2%, Irganox 1010 is 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, dry mixes 5 in high-speed mixer Minutes, then add to the twin-screw extruder to melt and extrude to granulate, wherein the temperature in the screw barrel is: 180°C in the first zone, 190°C in the second zone, 190°C in the third zone, 190°C in the fourth zone, 200°C in the head, twin-screw The extruder rotational speed was 500 rpm. After the particles are dried, they are injection molded on an injection molding machine to prepare samples.

Embodiment 3

[0046] Take by weight percentage polypropylene 75.5%, the clay masterbatch M50 that embodiment 1 makes is 14%, talcum powder 10%, Irganox 1010 is 0.1%, Igrafos 168 is 0.1%, Negonox DSTP is 0.3%, in high-speed mixing Dry mix in the container for 5 minutes, then add to the twin-screw extruder to melt and extrude to granulate. 200°C, the rotational speed of the twin-screw extruder is 500 rpm. After the particles are dried, they are injection molded on an injection molding machine to prepare samples.

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Abstract

The invention discloses a high-performance polypropylene nano composite material and a preparation method thereof, and belongs to the field of polymer modification and processing. The high-performance polypropylene nano composite material comprises the components in percent by weight: 39 to 98% of polypropylene, 1 to 15% organic clay, 0 to 30% of inorganic filling material, 0.1 to 6% of compatilizer, 0 to 20% of flexibilizer, 0.2 to 2% of stabilizer, and 0 to 4% of other additive. Through the cooperative modification of nanoscale organic clay and micron-sized talcum powder to polypropylene, a nano composite material with higher rigidity, higher tenacity and other performance is obtained at a lower material density.

Description

technical field [0001] The invention relates to a polypropylene nanocomposite material, specifically a high-performance polypropylene nanocomposite material and a preparation method of the composite material, belonging to the field of polymer modification and processing. Background technique [0002] Nanocomposite materials are a new field that develops very rapidly in material science in recent years. In general, it refers to composites with at least one dimension of the dispersed phase smaller than 100 nm. The special functions of nanocomposites mainly come from the small size effect of particles and numerous interfacial recombination effects. As long as a small amount of nanoparticles are added to the polymer by melt mixing or in-situ polymerization, the polymer can be greatly improved. Excellent mechanical properties, barrier properties and flame retardant properties, and can obtain much higher heat resistance, dimensional stability and electrical conductivity than conv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/00C08L51/06C08L23/08C08K13/06C08K9/04C08K3/34C08K3/26C08K3/30C08J3/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04
Inventor 张锴张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
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