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Light aging resistant polypropylene composition and preparation method thereof

A technology of polypropylene composition and aging performance, which is applied in the field of polypropylene composition, can solve the problems of not being suitable for wide application, etc., and achieve the effects of good long-term light aging resistance, low production cost, and not easy to precipitate

Active Publication Date: 2013-01-16
CHONGQNG PRET NEW MATERIAL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the molecular structure of this light stabilizer is quite special, and it is still in the stage of laboratory synthesis, so it is not suitable for wide application in actual production at present.

Method used

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  • Light aging resistant polypropylene composition and preparation method thereof

Examples

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Embodiment Construction

[0031] Below in conjunction with embodiment, the present invention is described in further detail:

[0032] In the composition formulations of Examples and Comparative Examples, the polypropylene is a block copolymer polypropylene with a melt flow rate of 8 g / 10 min (test condition: 230° C.×2.16 kg) produced by Shanghai Petrochemical, and its trade name is M700R. The inorganic filler used is talcum powder with a particle size range of 10 microns. The toughening agent POE used is a linear ethylene-octene copolymer produced by DuPont Company, the brand name is Engage 8180, and its melt index is 0.5g / 10min (test condition: 190°C×2.16kg). Described light stabilizer is the large molecular weight hindered amine light stabilizer that Italy 3V company produces, and its chemical name is: poly{[(N, N'-1,2-dimethylene)amino]-1, 3,5-Triazine-N-butyl-[(2,2,6,6-tetramethyl-4-piperidinyl)imino]}, density 0.45g / cc, softening temperature 120-150 °C, the molecular weight is 3000, and the trad...

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Abstract

The invention discloses a light aging resistant polypropylene composition. The light aging resistant polypropylene composition is prepared from the following raw materials in percentage by weight: polypropylene 55-99, inorganic filler 0-42, flexibilizer POE 0-20, light stabilizer 0.1-0.5, antioxidant 0.1-1 and other assistants 0-5. The invention has the advantages that: 1, a macro-molecular-weight hindered-amine light stabilizer is added in the polypropylene composition, so the polypropylene composite material prepared has high long-term light aging resistance; 2, the prepared polypropylene composition can ensure the light aging resistance of a material and prevent the physical mechanical properties of the material from being influenced; and 3, the method for improving the light aging resistance of the polypropylene composition, which is provided by the invention, has an extremely simple preparation process and low production cost.

Description

technical field [0001] The invention relates to a polypropylene composition with light aging resistance and a preparation method of the composition, in particular to improving the polypropylene composition system by adding a large molecular weight light stabilizer to the polypropylene composition system. The long-term photoaging resistance performance belongs to the field of polymer modification and processing. Background technique [0002] Polypropylene is one of the five general-purpose resins. There are many types of modified polypropylene. It has excellent processing performance, high toughness, good resistance to gasoline and chemicals, and is light in weight and cheap. It is widely used in interior and exterior decoration of automobiles. Components, housings of electronics and household electrical appliances, etc. However, the poor light aging resistance of polypropylene composites also affects its application fields. [0003] At present, the light aging resistance o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/10C08L79/02C08K5/00C08K13/02B29B9/00B29C47/92B29C48/40B29C48/92
CPCB29C48/04B29C48/40
Inventor 蔡青张鹰张祥福周文
Owner CHONGQNG PRET NEW MATERIAL
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