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Anti-ultraviolet antibacterial polypropylene filament yarn and preparation method thereof

An anti-ultraviolet and filament technology, applied in the field of polypropylene filament, can solve the problems of limited fiber, easy oxidation degradation of methyl side chain, poor heat resistance, etc.

Active Publication Date: 2021-03-19
HUNAN INSTITUTE OF ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The scientific name of polypropylene filament is polypropylene fiber, which has the advantages of light weight, wear resistance and corrosion resistance, and high strength, but its anti-ultraviolet and antibacterial properties are poor, poor heat resistance, and easy to be brittle at low temperatures. The methyl side chain is prone to oxidative degradation, which greatly limits the application of fibers

Method used

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  • Anti-ultraviolet antibacterial polypropylene filament yarn and preparation method thereof
  • Anti-ultraviolet antibacterial polypropylene filament yarn and preparation method thereof
  • Anti-ultraviolet antibacterial polypropylene filament yarn and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] (1) Preliminary material preparation

[0026] Graphene modification: absolute ethanol (mass fraction is 95%) and water are made into aqueous ethanol solution A containing 90% ethanol; take 40g of the above-mentioned A solution and 10gKH560 and make it into a hydrolyzate containing 20wt% of KH560, stir and hydrolyze for 30min Disperse 10g of graphene in a certain amount of aqueous solution and ultrasonically disperse for 30min; add the above-mentioned 50gKH560 dehydrated alcohol hydrolyzate dropwise into the dispersion of graphene, mix and stir, and ultrasonically treat for 30min; The water in the water dispersion of graphene / KH560 evaporates, and the ethanol volatilizes; then dry and then obtain KH560 modified graphene, and then grind it for later use;

[0027] TiO 2 Modification: Add the silane coupling agent KH570 dropwise into absolute ethanol with a mass fraction of 95% for hydrolysis to obtain an ethanol solution containing a silane coupling agent, and then add 5%...

Embodiment 2

[0039] Compared with Example 1, this embodiment is only different in raw material proportioning:

[0040] Polypropylene 96.4%

[0041] Modified graphene 0.5%

[0042] Modified TiO 2 1%

[0043] Maleic anhydride grafted polypropylene 2%

[0044] Dispersant (a mixture of sodium cellulose sulfonate and sodium lignosulfonate with a mass ratio of 50:50) 0.1%

Embodiment 3

[0046] Compared with example 1, this example is only different in the ratio of raw materials:

[0047] Polypropylene 95.9%

[0048] Modified graphene 0.5

[0049] Modified TiO 2 1.5

[0050] Maleic anhydride grafted polypropylene 2%

[0051] Dispersant (a mixture of sodium cellulose sulfonate and sodium lignosulfonate with a mass ratio of 50:50) 0.1%

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Abstract

The invention discloses an anti-ultraviolet antibacterial polypropylene filament yarn and a preparation method thereof. The anti-ultraviolet antibacterial polypropylene filament yarn is prepared fromthe following raw materials in percentage by mass: 0.5%-1% of a modified graphene material, 0.5%-1.5% of modified TiO2, 2% of maleic anhydride grafted polypropylene, 0.1% of a dispersing agent, and the balance of polypropylene, namely PP; and the dispersing agent is a mixture of cellulose sulfonate and lignosulfonate in a mass ratio of 40-60:60-40. The preparation method of the anti-ultraviolet antibacterial polypropylene filament yarn includes the steps of early-stage material preparation, composite granulation, spinning and the like. A product obtained by the preparation method of the anti-ultraviolet antibacterial polypropylene filament yarn has excellent ultraviolet resistance and antibacterial property.

Description

technical field [0001] The invention relates to polypropylene filaments, in particular to an anti-ultraviolet and antibacterial polypropylene filaments and a preparation method thereof. Background technique [0002] The scientific name of polypropylene filament is polypropylene fiber, which has the advantages of light weight, wear resistance and corrosion resistance, and high strength, but its anti-ultraviolet and antibacterial performance is poor, its heat resistance is poor, and it is easy to be brittle at low temperature. The methyl side chains of the fibers are prone to oxidative degradation, which greatly limits the application of fibers. Nano-titanium dioxide is an important ultraviolet shielding agent and semiconductor photocatalyst. It has good photocatalytic activity, chemical stability and thermal stability, as well as the advantages of non-toxicity, non-migration and direct contact with food. It is widely used in High polymer anti-ultraviolet modifier. In compos...

Claims

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Application Information

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IPC IPC(8): D01F6/46D01F1/10D01D5/08D01D5/088D01D5/12
CPCD01F6/46D01F1/103D01F1/106D01D5/08D01D5/088D01D5/12
Inventor 周衡书周忠成叶君健周蓉解开放罗凤香
Owner HUNAN INSTITUTE OF ENGINEERING
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