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Novel low odor polypropylene composite material and preparation thereof

A technology of composite materials and polypropylene, which is applied in the preparation of polypropylene composite materials, polypropylene composite materials, and hydrophobic odor-absorbing masterbatches. It can solve problems such as complex molding and processing techniques, and achieve low preparation costs and simple processes.

Active Publication Date: 2009-07-01
CHONGQNG PRET NEW MATERIAL +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can prevent the odor inhibitor from absorbing moisture during the blending and extrusion process, it also makes the subsequent molding process of the material more complicated

Method used

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  • Novel low odor polypropylene composite material and preparation thereof
  • Novel low odor polypropylene composite material and preparation thereof

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Embodiment Construction

[0059] Below in conjunction with embodiment, the present invention is described in further detail:

[0060] In the composite material formulations of the examples and comparative examples, the polypropylene is high crystalline homopolypropylene and block copolymerized polypropylene with different fluidities, and the dosage is 50-95%. Among them, the comonomer of block copolymerized polypropylene is usually ethylene, and its content is in the range of 4-10mol%. The melt flow rate of polypropylene (230°C×2.16kg) is 5-50g / 10min, and the more commonly used is 5. -30g / 10min, the crystallinity of high crystalline polypropylene is more than 70%, and the isotacticity is greater than 99%; the particle size range of the talcum powder is 1-10 microns; the toughening agent POE is a kind of ethylene- A copolymer of octene with a density of 0.88-0.90g / cm3 and a melt index of 1-50g / 10min; the attapulgite is produced by Jiangsu Xuyi Attapulgite Clay Company with a purity of 80% and a fineness...

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Abstract

The invention relates to novel low odor polypropylene composite material and a preparation method thereof. The low odor polypropylene composite material comprises the following components by weight percentage: 50 to 95 percent of polypropylene, 0 to 45 percent of inorganic filler, 0 to 20 percent of flexibilizer POE, 1.0 to 5.0 percent of hydrophobic type odor agglomerate, and 0.1 to 5.0 percent of other additives. The preparation method comprises the following steps: firstly mixing 20 to 70 percent basal body resin and 30 to 80 percent attapulgite which is modified by a quaternary ammonium salt surfactant, and carrying out extrusion and granulation to form the high concentration hydrophobic type odor agglomerate; and then mixing the high concentration hydrophobic type odor agglomerate with the polypropylene, the inorganic filler, the flexibilizer POE and the other additives, placing the mixture in a double screw extruder, and obtaining the low odor polypropylene composite material after melted extrusion and granulation. The method is characterized in that the method can make the forming and processing of the composite material be free of any impact, and make the composite material have excellent comprehensive physical and chemical properties and a good odor characteristic.

Description

technical field [0001] The present invention relates to the preparation of a low-odor polypropylene composite material, and more specifically relates to the preparation of a low-odor, low-emission polypropylene composite material by adding a new type of hydrophobic odor-absorbing masterbatch that does not affect the molding process of the material . It can be used for automotive parts and home appliance parts that have higher requirements on odor and total carbon emission performance, and belongs to the technical field of polymer materials. Background technique [0002] Polypropylene has been widely used because of its good processing performance and physical, mechanical and chemical properties. It is currently the fastest growing general-purpose thermoplastic. In recent years, it has become one of the main application fields to use polypropylene composite materials obtained after filling, strengthening, and blending modification as raw materials to make industrial supporti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08K3/34B29B9/12B29C47/40C08L101/12B29C48/40
CPCB29C48/40
Inventor 张鹰张祥福周文
Owner CHONGQNG PRET NEW MATERIAL
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