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Colored polypropylene fiber and preparation method thereof

A technology of polypropylene fiber and colored polypropylene, which is applied in the field of colored polypropylene fiber and its preparation, can solve the problems of weakening the effect of antioxidants, affecting the distribution of antioxidants, and poor oxidation resistance, and achieves excellent oxidation resistance and cracking Low heat generation, wide application effect

Inactive Publication Date: 2017-01-11
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unlike transparent polypropylene, colored polypropylene has poorer oxidation resistance. At the same time, colorants such as carbon black in colored polypropylene have an adsorption effect on antioxidants, which will affect the distribution of antioxidants in polypropylene and weaken the antioxidant properties. The role of oxygen

Method used

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  • Colored polypropylene fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Cut polypropylene slices, fraction a (1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4 , 6-(1H,3H,5H)-triketone), component b (poly(dipropylene glycol) phenyl phosphite), component c (poly{[6-[(1,1,3,3- Tetramethylbutyl)amino]]-1,3,5-triazine-2,4-[(2,2,6,6,-tetramethyl-piperidinyl)imino]-1,6- Hexadiene[(2,2,6,6-tetramethyl-4-piperidinyl)imino]}) and colorant masterbatch are added to the mixer for mixing and extruding to granulate, in which component a Accounting for 1100ppm of the polypropylene mixture, the weight ratio of component b to component a is 0.8:1, and component c accounting for 50000ppm of the polypropylene mixture; finally the pellets are melt-spun to make colored polypropylene fibers.

Embodiment 2

[0037] Slice polypropylene, component a (tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester), component b (3,9-dioctadecyloxy -2,4,8,10-tetraoxo-3,9-diphosphospiro[5.5]undecane) and component c (NI, NII, NIII, NIV-tetrakis(2,4-bis(N- 1,2,2,6,6-Pentamethyl-4-piperidinyl)imino-n)))-butylamino)-1,3,5-triazin-6-yl)-4,7 -diazodecane-1,10-diamine) was added into the mixer for mixing and extruding to granulate, wherein component a accounted for 15000ppm of the polypropylene mixture, and the weight ratio of component b to component a was 6: 1. Component c accounts for 8000ppm of the polypropylene mixture; finally, the pellets are mixed with the colorant and then melt-spun to make colored polypropylene fibers.

Embodiment 3

[0039] Slice polypropylene, component a (1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene), component b (three (2,4-di-tert-butylphenyl) phenyl phosphite) and coloring agent are added to the mixer for mixing and extruding to granulate, wherein component a accounts for 1100ppm of the polypropylene mixture, component b and component The weight ratio of sub-a is 3:1; finally, the pellets are melt-spun to make colored polypropylene fibers.

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Abstract

The invention discloses a colored polypropylene fiber. The fiber contains a component a hindered phenolic antioxidant, a component b phosphite antioxidant and / or a component c hindered amine antioxidant, wherein the component a accounts for 1100-15000ppm of the colored polypropylene fiber, the weight ratio of the component b to the component a is 0.8-6:1, and the component c accounts for 5000-50000ppm of the colored polypropylene fiber. The colored polypropylene fiber has excellent oxidation resistance, little cracking heat and wide application.

Description

technical field [0001] The invention relates to a colored polypropylene fiber with good oxidation resistance and a preparation method thereof. Background technique [0002] Polypropylene fiber is widely used due to its advantages of light weight and quick drying. However, polypropylene will undergo oxidative decomposition under the action of light and heat to generate alkyl radicals, and this reaction will continue continuously. Through this chain reaction called auto-oxidation cycle, polypropylene itself is oxidatively cracked, and the cracking reaction is an exothermic reaction. Under the action of self-heating, polypropylene will melt, smoke or even burn. [0003] In order to reduce the problem of oxidative heating of polypropylene, the main measure in the prior art is to add antioxidants. For example, patent CN02112743.3 discloses a transparent polypropylene composition, in which phenols, phosphonites or sulfuric acid antioxidants are added in order to improve the oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10
CPCC08K5/00D01F1/10
Inventor 陈彬彬成娟范志恒望月克彦
Owner TORAY FIBER RES INST(CHINA) CO LTD