Low-VOC (Volatile Organic Compound) polypropylene composite material for automotive interior parts and preparation method thereof

A composite material, polypropylene technology, applied in the field of polymers, can solve the problems of harming the health of drivers and passengers in the car, affecting the air quality in the car, and poor dimensional stability. The effect of improved appearance and low cost

Active Publication Date: 2014-02-19
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology improves upon existing materials by adding specific chemicals like charcoal powder (a type of filler) to make it more effective at absorbing harmful gases from exhaust gas emitted during manufacturing processes such as injection molds. Additionally, this new composition also includes certain types of plasticizers added to improve its flexibility without losing strength over time. Overall, these improvements enhance the properties of the resulting product while reducing environmental concerns associated therewith.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance characteristics of polyproplylenes that are commonly found at least partially because they have negative effects like being bad when exposed to strong chemical substances or having an unpleasant smell caused by volatile organic soluble components present therein.

Method used

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  • Low-VOC (Volatile Organic Compound) polypropylene composite material for automotive interior parts and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The low-VOC polypropylene composite material in this example is composed of the following raw materials by weight:

[0035] Copolymerized polypropylene 78.1 parts

[0036] Homopolypropylene 15 parts

[0037] High-density polyethylene resin (HDPE) 5 parts

[0038] Antioxidant 1076 0.3 parts

[0039] Antioxidant 168 0.2 parts

[0040] Activated carbon 1.0 parts

[0041] Ethylene bis stearamide 0.5 parts

[0042] CYASORB UV-3808 PP5 0.3 parts

[0043] Concrete preparation method comprises the following steps:

[0044] (1) Add the above-mentioned measured raw materials into the high-speed mixer and mix for 5 minutes;

[0045] (2) Put the mixed materials into a double-vacuum parallel twin-screw extruder for melting, extruding and granulating to obtain a modified polypropylene composite material; wherein the barrel temperature of the extruder is 220°C, and the screw speed is 450r / min, the melt pressure is 2.0MPa, and the vacuum degree is 0.05MPa.

[0046] (3) Pass t...

Embodiment 2

[0051] The low-VOC polypropylene composite material in this example is composed of the following raw materials by weight:

[0052] Copolymerized polypropylene 49.6 parts

[0053] High-density polyethylene resin (HDPE) 8.0 parts

[0054] Ethylene-octene copolymer 15 parts

[0055] Talc powder 15 parts

[0056] Antioxidant 168 0.2 parts

[0057] Porous silica 2.0 parts

[0058] Calcium stearate 0.8 parts

[0059] CYASORB UV-3808 PP5 0.2 parts

[0060] Concrete preparation method comprises the following steps:

[0061] (1) Add the above-mentioned measured raw materials into the high-speed mixer and mix for 8 minutes;

[0062] (2) Put the mixed material into a twin-vacuum parallel twin-screw extruder for melting, extruding and granulating to obtain a modified polypropylene composite material; wherein the barrel temperature of the extruder is 180°C, and the screw speed is 400r / min, melt pressure is 1.5MPa, vacuum is 0.01MPa

[0063] (3) The extruded and granulated particl...

Embodiment 3

[0066] The low-VOC polypropylene composite material in this example is composed of the following raw materials by weight:

[0067] Copolymerized polypropylene 40 parts

[0068] Copolymerized polypropylene 20 parts

[0069] High-density polyethylene resin (HDPE) 7 parts

[0070]EPDM rubber / propylene-alpha olefin copolymer 10 parts

[0071] Wollastonite 10 parts

[0072] mica 10 parts

[0073] Antioxidant 1076 0.3 parts

[0074] Antioxidant 168 0.2 parts

[0075] Porous molecular sieve 3.0 parts

[0076] Polyethylene wax 0.5 parts

[0077] CYASORB UV-V680 0.4 parts

[0078] Concrete preparation method comprises the following steps:

[0079] (1) Add the above-mentioned measured raw materials into the high-speed mixer and mix for 2 minutes at high speed;

[0080] (2) Put the mixed material into a twin-vacuum parallel twin-screw extruder for melting, extrusion and granulation to obtain a modified polypropylene composite material; wherein the temperature of the barrel of ...

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Abstract

The invention relates to a low-VOC (Volatile Organic Compound) polypropylene composite material for automotive interior parts and a preparation method thereof. The preparation method of the low-VOC polypropylene composite material comprises the following steps: mixing polypropylene, high density polyethylene resin, a filler, a toughening agent, an odor absorbent, an antioxidant, a lubricant and a light stabilizer in parts by weight, pelleting by using a double-vacuum parallel double-screw extruder, and finally drying pellets in a drying oven. The polypropylene composite material prepared by the method is low in VOC content, accords with in-vehicle air quality evaluation guide technical requirements and can be applied to the automotive interior parts; the application range of the polypropylene composite material is widened; the production cost of automobiles is reduced by using the polypropylene composite material; and the polypropylene composite material meets the lightweight requirements of automobiles.

Description

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Claims

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Application Information

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Owner ORINKO NEW MATERIAL CO LTD
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