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Low-odor and scratch-resistant continuous fiber reinforced polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, applied in the field of continuous fiber reinforced polypropylene composite material and its preparation, can solve the problems of poor paintability, fogging and high cost, and achieve easy control of glass fiber content and excellent low temperature impact performance. , Good impact toughness

Inactive Publication Date: 2017-08-01
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To improve the scratch resistance of polypropylene materials, the method of adding a single scratch-resistant agent is often used to improve the scratch-resistant effect of polypropylene materials, but the traditional scratch-resistant agents are mainly erucamides and high polysiloxanes Substances, one problem with adding erucamide alone is that when exposed to UV light, it forms a high concentration accumulation on the surface that will bring stickiness. In addition, erucamide will degrade under UV light, causing discoloration and stickiness There are two changes, and there are also problems such as poor weather resistance, poor paintability, and fogging when applied to the exterior of automobiles.
Although high-polysiloxane scratch-resistant agents have low volatility and are not easy to migrate to the surface of the workpiece to cause stickiness, their high cost limits their wide application

Method used

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  • Low-odor and scratch-resistant continuous fiber reinforced polypropylene composite material and preparation method thereof
  • Low-odor and scratch-resistant continuous fiber reinforced polypropylene composite material and preparation method thereof
  • Low-odor and scratch-resistant continuous fiber reinforced polypropylene composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 65 parts of homopolypropylene, 0.5 parts of silane coupling agent KH550 (γ-aminopropyltriethoxysilane), 0.02 parts of antioxidant 1010, 0.04 parts of antioxidant 168, 0.5 parts of ethylene bisstearamide , 0.5 parts of maleic anhydride grafted polypropylene, 3 parts of composite odor inhibitors (2.25 parts of silica porous silica gel powder and 0.75 parts of flavanol polyphenol adsorbent), 0.4 parts of composite anti-scratch agent (0.114 parts erucamide, 0.229 parts of siloxane polymer and 0.057 parts of zirconium diboride powder), sequentially added to the high mixer, the mixing temperature is controlled at 40 ° C, the mixing is stopped after 3 minutes, and then the mixed The polypropylene mixed resin is added to the hopper of the extruder for later use.

[0035]Preparation of polypropylene composite material: using continuous fiber-reinforced thermoplastic material impregnation equipment, adopting melt impregnation pultrusion process, adding the above mixture into the ...

Embodiment 2

[0037] 60 parts of copolymerized polypropylene, 1.5 parts of silane coupling agent KH550 (γ-aminopropyltriethoxysilane), 0.01 parts of antioxidant 1076, 0.01 parts of antioxidant 1098, 0.03 parts of antioxidant 168, 0.02 parts Antioxidant 618, 0.3 parts of calcium stearate, 0.3 parts of polyethylene wax, 1.5 parts of maleic anhydride grafted polypropylene, 3.5 parts of compound odor inhibitors (2.6 parts of silica porous silica powder and 0.9 parts of flavanol Polyphenol-like adsorbent), 0.45 parts of composite anti-scratch agent (0.128 parts of erucamide, 0.258 parts of siloxane polymer and 0.064 parts of zirconium diboride powder), sequentially added to the high mixer, the mixing temperature Control at 40°C, stop mixing after 3 minutes, then add the mixed polypropylene mixed resin into the hopper of the extruder for standby.

[0038] Preparation of polypropylene composite material: using continuous fiber-reinforced thermoplastic material impregnation equipment, adopting melt...

Embodiment 3

[0040] 25 parts of homopolypropylene, 30 parts of copolymerized polypropylene, 2.5 parts of γ-2,3 glycidoxy-propyltrimethoxysilane, 0.01 part of antioxidant 1010, 0.01 part of antioxidant 1098, 0.01 part of anti-oxidant Oxygen agent 1076, 0.03 part of antioxidant 168, 0.03 part of antioxidant 618, 0.3 part of ethylene bis stearamide, 0.2 part of calcium stearate, 0.2 part of pentaerythritol stearate, 2.5 parts of maleic anhydride grafted polymer Propylene, 4 parts of compound odor inhibitor (3 parts of silica porous silica gel powder and 1 part of flavanol polyphenol adsorbent), 0.5 part of compound anti-scratch agent (0.15 part of erucamide, 0.27 part of siloxane Polymer and 0.08 parts of zirconium diboride powder), sequentially added to the high mixer, the mixing temperature is controlled at 60 ° C, the mixing is stopped after 4 minutes, and then the mixed polypropylene mixed resin is added to the extruder Reserved in the hopper.

[0041] Preparation of polypropylene compos...

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Abstract

The invention belongs to the technical field of high polymer materials, and relates to a low-odor and scratch-resistant continuous fiber reinforced polypropylene composite material and a preparation method thereof. The composite material is prepared from the following ingredients in parts by weight: 40 to 65 parts of polypropylene, 30 to 50 parts of continuous glass fiber, 0.5 to 5 parts of coupling agent, 0.02 to 0.05 part of primary antioxidant, 0.04 to 0.1 part of auxiliary antioxidant, 0.5 to 1 part of lubricant, 0.5 to 5 parts of compatilizer, 3 to 5 parts of compound odor inhibitor and 0.4 to 1.2 parts of compound scratch-resistant agent. By means of adding the compound odor inhibitor and the compound scratch-resistant agent, an odor level of the continuous glass fiber reinforced polypropylene composite material provided by the invention can be 3-level or higher, and a scratch-resistant effect can reach a five-finger scratch color difference value delta L smaller than 1.0; furthermore, original excellent mechanical strength of the continuous glass fiber reinforced polypropylene composite material is not affected after the odor inhibitor and the scratch-resistant agent are added, and application of the continuous glass fiber reinforced polypropylene composite material in automotive upholstery, electric tool casings and parts of home appliance workpieces is widened.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a continuous fiber reinforced polypropylene composite material and a preparation method thereof. Background technique [0002] As a general-purpose engineering plastic, continuous fiber-reinforced polypropylene material has high strength, high stiffness, high impact strength, low density, low warpage creep, and excellent dynamic fatigue resistance. Because of its high cost performance, it is widely used Applied to structural parts such as automobiles and home appliances, and exterior parts such as electric tool casings. At present, it is not only used in external structural parts of automobiles, such as engine covers, front-end brackets, etc., but also because of its excellent mechanical properties and high cost performance. Widely used in automotive interior parts, such as inner guards, instrument panels, airbag shells and other components, replacing metal, short glass f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/06C08L51/06C08L83/04C08K13/04C08K7/14C08K5/544C08K5/134C08K5/526C08K5/20C08K7/26C08K3/38C08K5/098C08K5/5435C08K5/103
CPCC08L23/12C08L23/14C08L2205/02C08L2205/03C08L2205/035C08L51/06C08L83/04C08K13/04C08K7/14C08K5/544C08K5/1345C08K5/526C08K5/20C08K7/26C08K3/38C08L23/06C08K5/098C08K5/5435C08K5/103
Inventor 杨桂生蒋超杰姚晨光
Owner HEFEI GENIUS NEW MATERIALS
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