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Composite material of polypropylene in low smell and preparation method

A composite material, polypropylene technology, applied in the preparation of the composite material, low-odor polypropylene composite material field, can solve the problems affecting material properties, large differences, uneven distribution of micropore size, etc., to achieve simple preparation process, Excellent physical and mechanical properties and low cost

Inactive Publication Date: 2006-02-01
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, we found that after the material was added with activated carbon as an adsorbent, due to the uneven distribution of micropore size in the activated carbon, the difference was huge, and the largest pore size was as large as about 1000 angstroms, so other medium molecular weight additives added at the same time were often added together. Adsorption, which in turn affects other properties of the material, such as thermo-oxidative stability, etc.
Therefore, this method has little practical value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Dry-mix polypropylene 53.65%, talcum powder 40%, molecular sieve 5%, heat stabilizer DSTP 0.9%, heat stabilizer 3114 0.3%, heat stabilizer 618 0.15% in a high-speed mixer for 3-5 minutes, and then In the twin-screw extruder, it is melt-extruded and granulated. The process is: 200-210°C in the first zone, 210-220°C in the second zone, 210-220°C in the third zone, and 205-215°C in the fourth zone; the residence time is 1-2 minutes, the pressure is 12-18Mpa.

Embodiment 2

[0046] Dry-mix polypropylene 55.65%, talcum powder 40%, molecular sieve 3%, heat stabilizer DSTP 0.9%, heat stabilizer 3114 0.3%, heat stabilizer 618 0.15% in a high-speed mixer for 3-5 minutes, and then In the twin-screw extruder, it is melt-extruded and granulated. The process is: 200-210°C in the first zone, 210-220°C in the second zone, 210-220°C in the third zone, and 205-215°C in the fourth zone; the residence time is 1-2 minutes, the pressure is 12-18Mpa.

Embodiment 3

[0048] Dry mix polypropylene 56.65%, talcum powder 40%, molecular sieve 2%, heat stabilizer DSTP 0.9%, heat stabilizer 3114 0.3%, heat stabilizer 618 0.15% in a high-speed mixer for 3-5 minutes, and then In the twin-screw extruder, it is melt-extruded and granulated. The process is: 200-210°C in the first zone, 210-220°C in the second zone, 210-220°C in the third zone, and 205-215°C in the fourth zone; the residence time is 1-2 minutes, the pressure is 12-18Mpa.

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Abstract

A polypropene composition with low odor is proportionally prepared from polypropene, talc powder, molecular sieve (powdered silicoaluminate of alkali-metal), toughening agent poe, and thermal stabilizer.

Description

technical field [0001] The invention relates to a low-odor polypropylene composite material, and more particularly relates to preparing a low-odor polypropylene composite material by adding an odor inhibitor that can effectively suppress the unpleasant smell in the polypropylene composite material. The invention also relates to a method for preparing the composite material. Background technique [0002] In recent years, due to the rapid development of engineering modification technology of polypropylene materials, its application in the automotive field has become more and more extensive. However, as an important part of engineered polypropylene materials in the automotive field, various automotive interior parts made of engineered polypropylene materials, although they can meet the corresponding requirements in all aspects of performance, However, due to the fact that these materials emit certain unpleasant odors to varying degrees, they have been increasingly questioned b...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K5/524B29B9/12B29C47/40
Inventor 翁永华张祥福周文
Owner SHANGHAI PRET COMPOSITES
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