Method for making little odor polypropylene material using odor agglomerate

A polypropylene material and polypropylene technology, which is applied in the field of preparing low-odor polypropylene materials by using odor masterbatch, can solve the problems of affecting material characteristics, large differences, uneven distribution of micropore pore size, etc., and achieve excellent physical and mechanical properties, low Effects of odor properties

Inactive Publication Date: 2006-02-08
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problems caused by this method are: First, because activated carbon itself is black in color, it can only be used in black materials
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
When mineral soil systems such as attapulgite are used as the odor removal system, the pore size distribution of the adsorbent is also uneven, and the difference is huge, which leads to the problem of adsorbing other medium molecular weight additives together.
And, when all above-mentioned adsorbent systems are applied in the resin material as the odor remover, there is a common defect, that is, when they absorb the odor or other volatile substances in the resin material, the moisture that exists around will inevitably be absorbed together. Adsorption, which will cause more serious problems in subsequent processing and molding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of masterbatch: Dry mix 60% polypropylene and 40% molecular sieve in a high-speed mixer for 3-5 minutes, then melt-extrude in a twin-screw extruder, and granulate. The process is: one zone 200-210°C, 210-220°C in the second zone, 210-220°C in the third zone, 205-215°C in the fourth zone; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

[0037] Basic formula: Dry mix 58.65% polypropylene, 40% talcum powder, 3% molecular sieve, 0.9% heat stabilizer DSTP, 0.3% heat stabilizer 3114, and 0.15% heat stabilizer 618 in a high-speed mixer for 3-5 minutes, After that, it is melted and extruded in a twin-screw extruder, 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, and the pressure is 12-18Mpa.

[0038] The masterbatch prepared above was vacuum-packed in an aluminum foil bag and placed for a week, then mixed un...

Embodiment 2

[0040] Preparation of masterbatch: Dry mix 60% polypropylene and 40% molecular sieve in a high-speed mixer for 3-5 minutes, then melt-extrude in a twin-screw extruder, and granulate. The process is: one zone 200-210°C, 210-220°C in the second zone, 210-220°C in the third zone, 205-215°C in the fourth zone; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

[0041] Basic formula: Dry mix 58.65% polypropylene, 40% talcum powder, 3% molecular sieve, 0.9% heat stabilizer DSTP, 0.3% heat stabilizer 3114, and 0.15% heat stabilizer 618 in a high-speed mixer for 3-5 minutes, After that, it is melted and extruded in a twin-screw extruder, 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, and the pressure is 12-18Mpa.

[0042] The masterbatch prepared above was vacuum-packed in an aluminum foil bag and placed for a week, then mixed un...

Embodiment 3

[0044] Preparation of masterbatch: Dry mix 60% polypropylene and 40% molecular sieve in a high-speed mixer for 3-5 minutes, then melt-extrude in a twin-screw extruder, and granulate. The process is: one zone 200-210°C, 210-220°C in the second zone, 210-220°C in the third zone, 205-215°C in the fourth zone; the residence time is 1-2 minutes, and the pressure is 12-18Mpa.

[0045] Basic formula: Dry mix 58.65% polypropylene, 40% talcum powder, 3% molecular sieve, 0.9% heat stabilizer DSTP, 0.3% heat stabilizer 3114, and 0.15% heat stabilizer 618 in a high-speed mixer for 3-5 minutes, After that, it is melted and extruded in a twin-screw extruder, 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, and the pressure is 12-18Mpa.

[0046] The masterbatch prepared above was vacuum-packed in an aluminum foil bag and placed for a week, then mixed un...

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PUM

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Abstract

The invention relates to a method for making little odor polypropylene material using odor agglomerate, wherein the content of the flavor agglomerate is 20-70 wt% of the matrix resin, the content of flavor depressant is 30-80%, the matrix resin has good compatibility with polypropene material, which includes polypropylene or the copolymer of ethylene-octene, the liquation flow speed (230 deg C X 2.16kg) of the polypropene is 5-50g / 10min, the density of the copolymer of ethylene-octene (POE) is 0.88-0.90g / cm3, the melting index is 1-50g / 10min, the flavour depressant is physical adsorption material comprising one of molecular screen material or pore silica gel material or their combination, the molecular sieve material is a alkali metal aluminosilicate powder with sodium type crystal structure.

Description

technical field [0001] The present invention relates to a method for preparing low-odor polypropylene material by using odor masterbatch, more specifically, it relates to making high-concentration odor masterbatch by using odor suppressor and matrix resin which can effectively suppress unpleasant odor in polypropylene composite material. The pellets are then sealed, and finally mixed with the polypropylene material for uniform molding when the polypropylene material is molded, so as to prepare a low-odor polypropylene 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 aspe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08K3/34
Inventor 翁永华张祥福周文
Owner SHANGHAI PRET COMPOSITES
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