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A method for preparing colored special-shaped elastic multifilament fibers by polyether ester/ptt composite spinning

A multifilament fiber, polyetherester technology, applied in the direction of conjugated synthetic polymer rayon, melt spinning, fiber processing, etc., can solve problems such as color toxicity, achieve simple manufacturing process, uniform fiber thickness, improve phase capacitive effect

Active Publication Date: 2016-03-02
ZHEJIANG JINXIA NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention patent CN1035021C discloses a copolyether ester with high thermal stability. This patent uses a hindered phenol antioxidant and phosphoric acid, phosphorous acid or its esters to increase divalent metal cobalt compounds to form a compound with synergistic effect. Stabilizer can improve the dyeing rate and thermal stability of the fiber prepared under the premise of not lowering the melting point of the slice, but this patent uses heavy metal catalyst compounds, which brings problems in color and toxicity; Chinese invention patent CN101358020B mainly uses modified polymer Films prepared by melt casting of ether esters, used in the manufacture of roof or wall films in the construction industry
However, there are no similar reports on how to improve the compatibility of this type of polymer with PTT and use it for fiber preparation.

Method used

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  • A method for preparing colored special-shaped elastic multifilament fibers by polyether ester/ptt composite spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a 20-liter stirred vessel equipped with a column and a series condenser, 4.9 mol of terephthalic acid, 5.1 mol of butanediol, 0.7 mol of polyethylene oxide glycol solution with a molecular weight of 1200 and 0.6 mol of Polypropylene oxide diol with a molecular weight of 2000, 2g of PbSO 4 , 8ml weight percent is the aqueous solution of 25% tetramethylammonium hydroxide. After the nitrogen pressurization / purging cycle, and the heater temperature was adjusted so that the initial charge temperature was 190°C, the condensation valve was set at 115°C. The reaction mass was heated to 250° C., 25 g of polyisobutylene adipate with a molecular weight of 5000 was added, and the pressure valve was adjusted to reduce the pressure to 0.5 mmHg within 30 minutes. After 2 hours, the melt was extruded through a die under nitrogen pressure to obtain strands. The modified polyether ester blended with the amphiphilic high polymer can be obtained by pulling the wire through the water t...

Embodiment 2

[0024] In a 20-liter stirred vessel equipped with a column and a series condenser, 5.4 mol of terephthalic acid, 5.2 mol of butanediol, 0.7 mol of polyethylene oxide glycol solution with a molecular weight of 1000 and 0.6 mol of Polypropylene oxide diol with a molecular weight of 1500, 1.5 g of PbSO 4 , 5ml weight percent is the aqueous solution of 25% tetramethylammonium hydroxide. After the nitrogen pressurization / purging cycle, and the heater temperature was adjusted so that the initial charge temperature was 180°C, the condensation valve was set at 110°C. The reaction material was heated to 240° C., 20 g of polyisobutylene adipate with a molecular weight of 8000 was added, and the pressure valve was adjusted to reduce the pressure to 0.5 mmHg within 30 minutes. After 2 hours, the melt was extruded through a die under nitrogen pressure to obtain strands. The modified polyether ester blended with the amphiphilic high polymer can be obtained by pulling the wire through the ...

Embodiment 3

[0026] Use spinning chip to be by 80 parts of poly(trimethylene terephthalate) (PTT) spinning chip, 5 parts of color masterbatch and 14.5 parts of TPEE in embodiment one and amphiphilic polymer blending chip and 0.5 part of antioxidant, After screw blending, cut off the preparation, put the slices prepared by blending in the VC358 rotary pot, first evacuate to within 30 Pa, then heat to 120°C for 8 hours for drying and dehydration, keep the water content below 35PPM for 8 hours; color Masterbatch (Wuxi Changhong Chemical Plastic Color Granules Co., Ltd. fiber special masterbatch), gradually heated to 120°C for drying and dehydration in 8 hours, and kept warm for 8 hours. The mass ratio of color masterbatch and pigment is 30%, containing The water content is below 35PPM, and the drying process is a well-known technology in the industry.

[0027] Using VC406 spinning machine, polyester chips and color masterbatch are extruded, blended and melted by a screw machine to form a melt...

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Abstract

The invention relates to a method for preparation of a colored special-shaped elastic multifilament fiber by polyether ester / PTT (polytrimethylene terephthalate) composite spinning. The colored special-shaped elastic multifilament fiber is prepared by subjecting 80-95% of PTT, 5-20% of polyether ester, 2-5% of an interface modified amphiphilic polymer, 5-10% of masterbatches, and 0.5-1% of an antioxidant to blending, melt extrusion and stretching. The filament number is 1-5detx, the multifilament breaking strength 1-5cN / dtex, and the elongation at break is 10-40%. The preparation of the multifilament fiber provided by the invention can be finished on conventional spinning equipment, tow tops are dry and even, and after weaving, the color distribution is uniform. The colored special-shaped elastic multifilament fiber provided by the invention can be widely used in the clothing field and the decoration field, and the obtained fabric has soft handfeel and very good elastic resilience.

Description

【Technical field】 [0001] The invention relates to the technical field of functional fibers, in particular to a method for preparing colored special-shaped elastic multifilament fibers by polyether ester / PTT composite spinning. 【Background technique】 [0002] Polybutylene terephthalate / polyethylene oxide / polypropylene oxide thermoplastic elastomers are made from dimethyl terephthalate, butylene glycol, polyethylene oxide glycol and / or polypropylene oxide A block copolymer (TPEE for short) obtained by co-condensation of diols, with easily crystallized polybutylene terephthalate as the hard segment, and a soft, amorphous polyethylene oxide with a low glass transition temperature / Polypropylene oxide polyether is used as the soft segment, and the mass percentage of polyether is 20-50%. Polyester hard segments are dispersed in amorphous polyether soft segments as physical cross-linking points, and the soft and hard segments are connected by chemical bonds. This heterogeneous pha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/14D01F1/10D01D5/253D01D5/30D01D5/08
Inventor 张志明
Owner ZHEJIANG JINXIA NEW MATERIAL TECH CO LTD
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