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Low-VOC (volatile organic compound) polypropylene material for vehicles and preparation method of polypropylene material

A polypropylene material and polypropylene technology, applied in the field of low-VOC automotive polypropylene material and its preparation, can solve the problems of increasing reaction activity, aggravating the degradation of polypropylene resin, and rusting of extruders, so as to increase the concentration of reactants, The effect of reducing the dosage and improving the degradation activity

Inactive Publication Date: 2019-05-17
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme will cause a large amount of water vapor to exist in the screw barrel, which will increase the reactivity of each component under high temperature conditions, aggravate the degradation of polypropylene resin, and also cause corrosion to the extruder

Method used

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  • Low-VOC (volatile organic compound) polypropylene material for vehicles and preparation method of polypropylene material
  • Low-VOC (volatile organic compound) polypropylene material for vehicles and preparation method of polypropylene material
  • Low-VOC (volatile organic compound) polypropylene material for vehicles and preparation method of polypropylene material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare hot catalyst:

[0033] Mix 500g of zeolite molecular sieve with 5000ml of distilled water and stir for 1h; add 514ml of 0.05mol / L chloroplatinic acid aqueous solution, stir at room temperature for 2h, place in a muffle furnace, dry at 105°C, and grind finely; then It was calcined in air at 400°C for 2h, and then in H 2 Reduction at 300°C for 3 hours in the air stream to obtain a hot catalyst with a Pt loading of 1%; take 500g of the loaded hot catalyst and add it to a high mixer, mix it at 110°C for 5 minutes at 1200r / min, add 4g of aluminate Combined agent, continue to mix at high speed for 5 minutes.

[0034] Preparation of low-VOC automotive polypropylene materials:

[0035] Take by weighing 68 parts of copolymerized polypropylene, 20 parts of talcum powder, 4 parts of thermal catalysts, 7 parts of ethylene-octene copolymers, 0.4 parts of ethylene bis stearamide, 0.3 parts of antioxidant 1010 and 0.3 parts by weight The light stabilizer is added to the mix...

Embodiment 2

[0037] Prepare hot catalyst:

[0038] Mix 500g of porous aluminum hydroxide with 5000ml of distilled water and stir for 1 hour; add 770ml of aqueous solution of chloroplatinic acid with a concentration of 0.01mol / L, stir at room temperature for 3 hours, place in a muffle furnace, dry at 105°C, and grind finely; It was then calcined in air at 400°C for 3 h, and then heated in H 2 Reduction at 300°C for 2h in the air stream to obtain a hot catalyst with a Pt loading of 0.3%; take 500g of the loaded hot catalyst and add it to a high mixer, and mix it at 1400r / min for 5min at 80°C; then add 5g of rare earth coupling agent, and continue to mix at high speed for 8 minutes.

[0039] Preparation of low-VOC automotive polypropylene materials:

[0040]Weigh 75 parts of homopolypropylene, 13 parts of mica, 6 parts of thermal catalyst, 4 parts of ethylene-propylene copolymer, 1 part of pentaerythritol stearate, 0.5 part of antioxidant 1076 and 0.5 part of light stable Add the agent int...

Embodiment 3

[0042] Prepare hot catalyst:

[0043] Mix 500g of medical stone with 5000ml of distilled water and stir for 1h; add 770ml of 0.1mol / L chloroplatinic acid aqueous solution, stir at room temperature for 1h, place in a muffle furnace, dry at 105°C, and grind finely; then It was calcined in air at 400°C for 4 h, and then heated in H 2 Reduction at 300°C for 4 hours in the air stream to obtain a hot catalyst with a Pt loading of 3%; take 500g of the loaded hot catalyst and add it to a high mixer, and mix it at 120°C for 7 minutes at 1000r / min; then add 7.5g of titanic acid The ester coupling agent continued to mix at high speed for 6 minutes.

[0044] Preparation of low-VOC automotive polypropylene materials:

[0045] Weigh 50 parts of copolymerized polypropylene, 40 parts of homopolypropylene, 5 parts of wollastonite, 2 parts of thermal catalyst, 2 parts of propylene-alpha olefin copolymer, 0.5 part of zinc stearate, 0.3 part of antioxidant by weight 168 and 0.2 parts of light ...

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Abstract

The invention discloses a low-VOC (volatile organic compound) polypropylene material for vehicles and a preparation method of the polypropylene material. The material is prepared from components in parts by weight as follows: 50-90 parts of polypropylene, 5-30 parts of a filling agent, 2-8 parts of a thermal catalyst, 2-8 parts of a flexibilizer, 0.2-2 parts of a lubricant, 0.2-1 part of an antioxidant and 0.2-1 part of a light stabilizer. The preparation method of the material comprises steps as follows: the preparation raw materials are sufficiently mixed, then the mixture is added to a parallel twin-screw extruder for melting, extrusion, granulation and drying are performed, and the low-VOC polypropylene material for the vehicles is prepared. The thermal catalyst can realize functions of adsorption and catalytic degradation simultaneously by supporting a Pt catalyst on the surface of an adsorbent. The VOC catalytic degradation by the thermal catalyst is realized by the aid of heat supplied in extrusion and drying processes, and therefore, the problem about smell of the polypropylene material can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a low-VOC automotive polypropylene material and a preparation method thereof. Background technique [0002] In recent years, under the development trend of lightweight automobiles, polypropylene materials are widely used in automobile dashboards, door panels, spoilers, and bumpers due to their low density, excellent heat resistance, and easy molding. In the interior and exterior decorations. However, when polypropylene material is used in automotive interior parts, it will continuously release volatile organic compounds (volatioe organic compounds), that is, VOC, which will cause the deterioration of the environment inside the car and endanger human health. Therefore, we urgently need to research and develop environmentally friendly polypropylene materials with low VOC content. [0003] At present, there have been a large number of research reports on low-VOC automoti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L23/08C08K13/06C08K3/34C08K9/12C08K9/04C08K3/24C08K7/26C08L23/16C08K7/24C08K3/30
Inventor 吴仲涛王刚方超周海康兴宾李荣群
Owner ORINKO NEW MATERIAL CO LTD
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