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Anti-ultraviolet-aging glass-fiber-reinforced polypropylene composite material and preparation method thereof

A technology for anti-ultraviolet aging and composite material, which is applied in the field of anti-ultraviolet aging glass fiber reinforced polypropylene composite material and its preparation, and achieves the effects of low energy consumption, low equipment cost and easy process realization.

Active Publication Date: 2013-01-09
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Chinese invention patent CN101735513A discloses alkali-free short fiber reinforced polypropylene composite material, which has excellent mechanical properties and can be improved by adding hindered amine light stabilizer Light stability, but because the antagonism between the acidity of the compatibilizer and the alkalinity of the light stabilizer has not been completely resolved, the anti-ultraviolet aging properties are limited

Method used

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  • Anti-ultraviolet-aging glass-fiber-reinforced polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]Weigh respectively dry copolymerized polypropylene 87.0%, alkali-free glass fiber 10.0%, compatibilizer PP-g-MAH is 2.5%, antioxidant 1010 is 0.3%, antioxidant 168 is 0.1%, light Stabilizer phenyl o-hydroxybenzoate is mixed at 0.1%, and the uniformly mixed material is added to a twin-screw extruder, melted and extruded, and then water-cooled, and cut into 1-5mm in length by a pelletizer particle. Among them, the processing temperature of the extruder is 180°C, 195°C, 210°C, 210°C, 220°C from the feeding port to the die port in sequence, the main engine speed is 60-80rpm, and the vacuum degree is 0.3MPa. Then, the composite material particles and ASA were added into a high-speed mixer in a mass ratio of 95:5 for mechanical mixing. The speed of the high-speed mixer was 1000 rpm, and the final product could be obtained after stirring for 3 minutes.

[0040]

Embodiment 2

[0042] Take by weighing 80.0% dry good copolymer polypropylene, alkali-free glass fiber 17.0%, compatibilizer PP-g-MAH is 1.2%, compatibilizer ASA-g-MAH is 1%, antioxidant 1010 is 0.3%, the antioxidant DSTDP is 0.1%, and the light stabilizer 2-hydroxyl-4-n-octyloxybenzophenone is 0.4% for mixing, and the uniformly mixed material is added to the twin-screw extruder, and melted Extruded, then water-cooled, cut into particles with a length of 1-5mm by a pelletizer. Among them, the processing temperature of the extruder is 180°C, 195°C, 210°C, 210°C, 220°C from the feeding port to the die port in sequence, the main engine speed is 60-80rpm, and the vacuum degree is 0.3MPa. Then add the particles and ASA into the high-speed mixer according to the mass ratio of 95:5 and mix mechanically. The speed of the high-speed mixer is 1000rpm, and it can be stirred for 3 minutes.

[0043]

Embodiment 3

[0045] Weigh 75.0% of dry copolymerized polypropylene by weight, 20.0% of alkali-free glass fiber, 2.3% of compatibilizer PP-g-MAH, 2.0% of EPDM-g-MAH, and 0.1% of antioxidant 1010 %, the light stabilizer 2,4-dihydroxybenzophenone is mixed at 0.6%, and the uniformly mixed material is added to a twin-screw extruder, melted and extruded, and then water-cooled, cut by a pelletizer Grow particles with a length of 1-5 mm. Among them, the processing temperature of the extruder is 180°C, 195°C, 210°C, 210°C, 220°C from the feeding port to the die port in sequence, the main engine speed is 60-80rpm, and the vacuum degree is 0.3MPa. Then add the particles and ASA into the high-speed mixer according to the mass ratio of 93:7 and mix mechanically. The speed of the high-speed mixer is 1000rpm, and stir for 3 minutes.

[0046]

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Abstract

The invention discloses an anti-ultraviolet-aging glass-fiber-reinforced polypropylene composite material and a preparation method thereof. The composite material is prepared from glass-fiber-reinforced polypropylene composite material granules and ASA (acrylonitrile-styrene-acrylate) in a mass ratio of 95:5-90:10. The glass-fiber-reinforced polypropylene composite material granules are composed of polypropylene, glass fibers, a compatilizer, an antioxidant and a photostabilizer. The material has the characteristic of strong ultraviolet-aging resistance, and also has high strength and high toughness in the ultraviolet-aging glass-fiber-reinforced polypropylene composite material. The preparation technique is simple, and has the advantages of low production cost and no secondary pollution.

Description

[0001] technical field [0002] The invention belongs to the technical field of polymer composite materials, and in particular relates to an anti-ultraviolet aging glass fiber reinforced polypropylene composite material and a preparation method thereof. [0003] technical background [0004] Glass fiber reinforced plastic is a light-weight and high-strength engineering structural material. Because the fiber has good mechanical properties, when there is an external force, the load is transmitted through the fiber, so the tensile, bending, impact strength and resistance of glass fiber reinforced plastic Creep and fatigue resistance are far better than non-reinforced plastics, and have excellent rigidity, toughness, and warpage resistance, and their prices are much lower than engineering plastics. Glass fiber reinforced plastics are widely used, and about 50% of glass fiber reinforced plastics are used in the automotive industry in Western Europe. The performance of glass f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L51/06C08K13/06C08K9/06C08K9/04C08K7/14C08K5/134C08K5/3475C08K5/132C08L51/00
Inventor 杨桂生汪海孙利明
Owner HEFEI GENIUS NEW MATERIALS
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