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Anti-aging polypropylene material based on fiber reinforcement and preparation method thereof

A polypropylene material and fiber-reinforced technology, applied in the field of polypropylene, can solve the problems of short service life, poor aging resistance and anti-ultraviolet performance of polypropylene materials, and affect compatibility, so as to ensure service life and improve anti-aging Performance, the effect of improving dispersion

Inactive Publication Date: 2020-12-08
卞培培
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, in order to improve the strength of polypropylene materials, fillers such as wood fiber and carbon fiber are generally added to the matrix material. The addition of fillers will affect the compatibility of various components in the composite material system, and the prepared polypropylene material has a Poor aging performance and UV protection performance, short service life

Method used

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  • Anti-aging polypropylene material based on fiber reinforcement and preparation method thereof
  • Anti-aging polypropylene material based on fiber reinforcement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] S1: Prepare materials;

[0048] S2: Preparation of modified zinc oxide:

[0049] Take zinc acetate, sodium hydroxide, and deionized water to dissolve, stir for 10 minutes, add glycerol, continue stirring for 10 minutes, heat up to 180°C in a closed environment, react for 24 hours, cool, wash and dry, and obtain nano-zinc oxide;

[0050] Take nanometer zinc oxide, dissolve it in ethanol, stir for 5 minutes, add tetraethyl orthosilicate at 25°C, ultrasonically disperse for 20 minutes, stir for 6 hours, add n-hexane after stirring, centrifuge, wash with ethanol, and dry at 60°C to obtain modified zinc oxide ;

[0051] S3: Preparation of anti-aging agent:

[0052] Take 1 / 2 amount of wood fiber, soak it in silane coupling agent, mix and stir for 10min, dry for 10h to get wood fiber A; take 1 / 2 amount of wood fiber, soak it in sodium hydroxide solution for 24h, wash with deionized water When the pH is 7, wood fiber B is obtained; carbon fiber is placed in acetone solution,...

Embodiment 2

[0062] S1: Prepare materials;

[0063] S2: Preparation of modified zinc oxide:

[0064] Take zinc acetate, sodium hydroxide, and deionized water to dissolve, stir for 12 minutes, add glycerol, continue stirring for 11 minutes, heat up to 182°C in a closed environment, react for 26 hours, cool, wash and dry, and obtain nano-zinc oxide;

[0065] Take nano-zinc oxide, dissolve it in ethanol, stir for 8 minutes, add tetraethyl orthosilicate at 27°C, ultrasonically disperse for 23 minutes, stir for 6.5 hours, add n-hexane after stirring, centrifuge, wash with ethanol, and dry at 60°C to obtain modified oxide Zinc;

[0066] S3: Preparation of anti-aging agent:

[0067] Take 1 / 2 of the wood fiber, soak it in the silane coupling agent, mix and stir for 12 minutes, and dry it for 11 hours to obtain wood fiber A; take 1 / 2 of the wood fiber, soak it in sodium hydroxide solution for 25 hours, wash it with deionized water When the pH was 7, wood fiber B was obtained; carbon fiber was pl...

Embodiment 3

[0077] S1: Prepare materials;

[0078] S2: Preparation of modified zinc oxide:

[0079] Take zinc acetate, sodium hydroxide, and deionized water to dissolve, stir for 15 minutes, add glycerol, continue stirring for 12 minutes, heat up to 185°C in a closed environment, react for 28 hours, cool, wash and dry, and obtain nano-zinc oxide;

[0080] Take nanometer zinc oxide, dissolve it in ethanol, stir for 10 minutes, add tetraethyl orthosilicate at 28°C, ultrasonically disperse for 25 minutes, stir for 7 hours, add n-hexane after stirring, centrifuge, wash with ethanol, and dry at 60°C to obtain modified zinc oxide ;

[0081] S3: Preparation of anti-aging agent:

[0082] Take 1 / 2 amount of wood fiber, soak it in silane coupling agent, mix and stir for 15 minutes, dry for 12 hours to obtain wood fiber A; take 1 / 2 amount of wood fiber, soak it in sodium hydroxide solution for 26 hours, wash with deionized water When the pH is 7, wood fiber B is obtained; carbon fiber is taken, p...

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Abstract

The invention discloses an anti-aging polypropylene material based on fiber reinforcement and a preparation method of the anti-aging polypropylene material. The anti-aging polypropylene material comprises the following components: polypropylene, polyethylene, ethylene propylene diene monomer, an anti-aging agent, an auxiliary agent, a light stabilizer and the like. The anti-aging agent comprises wood fibers, carbon fibers, carbon nanotubes, dopamine, modified zinc oxide and other components; when the modified zinc oxide is prepared, zinc oxide is synthesized by a solvothermal method, components such as zinc acetate, sodium hydroxide, glycerol and the like are used for reaction, and the synthesized zinc oxide is petal-shaped or rod-shaped; the invention discloses the anti-aging polypropylene material based on fiber reinforcement and the preparation method thereof, the process design is reasonable, the component proportion is proper, the prepared polypropylene material not only has excellent mechanical properties and tensile strength, but also has further improved ultraviolet aging resistance, the service life is greatly prolonged, and high practicability is achieved.

Description

technical field [0001] The invention relates to the technical field of polypropylene, in particular to a fiber-reinforced anti-aging polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene, referred to as PP, is a thermoplastic synthetic resin with excellent performance. It is a colorless and translucent thermoplastic light-weight general-purpose plastic. High wear-resistant processing performance, etc., can be widely used in many fields such as machinery, automobiles, electronic appliances, construction, textiles, packaging, agriculture, forestry, fishery and food industry. [0003] Nowadays, in order to improve the strength of polypropylene materials, fillers such as wood fiber and carbon fiber are generally added to the matrix material. The addition of fillers will affect the compatibility of various components in the composite material system, and the prepared polypropylene material has a The aging performance and anti-ultrav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/16C08L97/02C08L79/02C08K13/06C08K9/10C08K7/00C08K3/22C08K7/06C08K3/04C08K3/26C08J5/06
CPCC08J5/06C08J2323/12C08J2423/06C08J2423/16C08J2479/02C08J2497/02C08K3/26C08K7/00C08K7/06C08K9/10C08K13/06C08K2003/2213C08K2003/2241C08K2003/2296C08K2201/011C08K3/041
Inventor 卞培培
Owner 卞培培
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