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One-bath and one-step gelation crystallization dyeing method for ultrahigh strength and high-modulus polyethylene fibers

A technology of polyethylene fiber and dyeing method, which is applied in the direction of dyeing method, textile and papermaking, etc.

Active Publication Date: 2014-11-26
JIANGSU JONNYMA NEW MATERIALS CO TLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the technical problems existing in the current ultra-high strength UHMWPE fiber dyeing technology, such as difficult coloring, low efficiency, decreased spinnability, environmental protection, and high production costs, the present invention provides a One-step gelation and crystallization dyeing method of ultra-high-strength and high-modulus polyethylene fiber in the same bath

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Add 100L of solvent oil to the mixing kettle Ⅰ at room temperature: 5# white oil; UHMWPE powder raw material: average particle size <100μm, add 12.5Kg based on 12.5% ​​solvent content, stabilizer aluminum ethylene distearate , according to the amount of UHMWPE 0.05% (add, stir and turn on the program temperature control device A to raise the temperature to 80°C, keep it for 20 min, then turn on the program temperature control device B (-30°C / min) to cool down to RT;

[0037] (2) Add 0.05% phase-transition aid, which consists of sorbitan trioleate, polyoxyethylene ether 100 stearic acid (trade name MYRJ59), diacetone alcohol DAA (1:1:0.5 ) according to compounding, stir at 1000rpm and turn on the program temperature control device A to raise the temperature to 80°C, keep it for 20min, then turn on the program temperature control device B to cool down (30°C / min) to 4°C;

[0038] (3) Add refined red dye in three batches in turn: chemical structure (see structural formu...

Embodiment 2

[0042] (1) Add solvent to the mixing kettle Ⅰ at room temperature: 100L of 5# white oil, UHMWPE powder with an average particle size of <100μm, add according to the amount of solvent 13.5%, stabilizer aluminum ethylene distearate, according to UHMWPE Add 0.06% of the meter, while stirring, turn on the program temperature control device A to raise the temperature to 80°C (1°C / min), keep it for 20 min, then turn on the program temperature control device B to cool down (-40°C / min) to RT;

[0043] (2) Add 0.07% phase inversion additive, which is composed of sorbitan trioleate, polyoxyethylene ether 100 stearic acid, diacetone alcohol DAA (1::1:0.5), at 1000rpm Stir at high speed and turn on program temperature control device A to raise the temperature to 80°C, then turn on program temperature control device B to cool down (-40°C / min) to 4°C;

[0044] (3) Add refined yellow dye in sequence: the chemical structural formula (see formula 3) is (3) Molecular formula C 5...

Embodiment 3

[0048] (1) Add solvent to the mixing kettle Ⅰ at room temperature: 5# white oil, UHMWPE powder with an average particle size of <100μm, add according to the amount of solvent 15.1%, stabilizer aluminum ethylene distearate, according to the amount of UHMWPE Add 0.05% in total, stir while turning on the temperature control device A to raise the temperature to 80°C, keep it for 40 minutes, then turn on the temperature control device B (-40°C / min) to cool down to RT;

[0049] (2) Add 0.06% phase-transition aid, which consists of glycerol monostearate (trade name GMS), polyoxyethylene ether 100 stearic acid (trade name MYRJ59), diacetone alcohol DAA press (1: 1:0.5), stir at 1000rpm and turn on the program temperature control device A to raise the temperature to 80°C, keep it for 40min, then turn on the program temperature control device B to cool down (-40°C / min) to 4°C;

[0050] (3) Add refined green dye in sequence: chemical formula (see structural formula 1) chemical molecular ...

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Abstract

The invention discloses one-bath and one-step gelation crystallization dyeing method for ultrahigh strength and high-modulus polyethylene fibers. The method directly selects and introduces a planar molecular structure dye with specific size into a gel original liquid. By adding a certain phase inversion agent and at the same time, applying a programmed temperature phase inversion, preparation of the original liquid is realized by combining and cooperating the dye and gelation in the one bath and one step, thereby reducing adverse influences brought by a lot of tedious processes and a lot of auxiliary agents in a conventional method. With the dyeing method provided by the invention, the utilization rate of the dye can be increased greatly. The mesomorphic dye planar molecular effects can promote formation and orientation stability of a PE chain condensed submicroscopic nano-micron fiber scale lamellar crystal phase, and can improve and increase gelation spinning performance of colored ultrahigh strength and high-modulus UHMWPE. The method is environment-friendly and can save energy.

Description

Technical field [0001] The present invention involves a synchronous dyeing method for the solution spinning process, especially in a super high -HO -high -modal polyethylene fiber -to -step method. Background technique [0002] Ultra High Molecular Weight Polyethylene (ULTRA High Molecular Weight Polyethylene) is currently the highest-strength fiber in the world. Its raw material molecular weight is 3 million to 6 million polyethylene.Fiber.Application products in the field of special materials in the fields of military, aerospace, marine, and mining, bulletproof, anti -splitting, and impact prevention are being developed in large quantities; the production process of UHMWPE fiber is so far mainly based on the "gel spinning under the condition of quasi -scarcity concentration.Silk method-, GL method "(see Literature 1, 2, 3) and developed. The GL method obtains production by making ultra-high molecular quantitative ethylene chains completely straighten to the crystal state.In exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/79D06P1/00D06P1/613D06P1/651
Inventor 沈文东朱清仁陈清清
Owner JIANGSU JONNYMA NEW MATERIALS CO TLD
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