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

A polyether ester, colored technology, applied in the direction of conjugated synthetic polymer rayon, melt spinning, rayon manufacturing, etc., can solve the problems of color toxicity, etc., achieve simple manufacturing process, uniform fiber thickness, and improve compatibility sexual effect

Active Publication Date: 2016-05-04
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 prepared fibers without lowering the melting point of the slices, but this patent uses heavy metal catalyst compounds, which brings problems in color and toxicity; the invention patent CN101358020B mainly uses modified polyether Films prepared by melt casting process, 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 monofilament by polyether ester/ptt composite spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 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 The molecular weight is 2000 m-oxide propylene glycol, 2gPbSO 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 tank and...

Embodiment 2

[0030] 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 MW 1500 propylene oxide diol, 1.5g 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 water tank and entering the cutt...

Embodiment 3

[0032] Use spinning chip to be by 80 parts of poly(trimethylene terephthalate) (PTT) spinning chip, 3 parts of color masterbatch and 16.7 parts of TPEE in embodiment one and amphiphilic polymer blending chip and 0.3 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 Plastic Color Granules Co., Ltd. special color masterbatch for polyester fiber), gradually heated to 120°C at a constant speed for 8 hours for drying and dehydration, kept for 8 hours, and the mass ratio of color masterbatch and pigment was 30%. The water content is below 35PPM, and the drying process is a well-known technology in the industry.

[0033] Using VC406 spinning machine, polyester chips and color masterbatch are extruded, blended and melted by a screw machi...

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Abstract

The invention relates to a method for preparation of a colored special-shaped elastic monofilament by polyether ester / PTT (polytrimethylene terephthalate) composite spinning. The colored special-shaped elastic monofilament is formed by subjecting 70%-90% of PTT, 5%-30% of polyether ester, 2%-5% of an interface modified amphiphilic polymer, 2%-4% of masterbatches, and 0.2-0.5% of an antioxidant to blending, melt extrusion and stretching. The monofilament number is 10-150detx, the breaking strength is 2-8cN / dtex, and the elongation at break is 15-45%. The preparation of the monofilament 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 monofilament provided by the invention can be widely used in the clothing field, the decoration field and the industrial field, the obtained fabric is smooth, and the luster is soft.

Description

【Technical field】 [0001] The technical field that the present invention relates to, specifically, is a kind of polyether fat / PTT composite spinning method for preparing colored special-shaped elastic monofilament. 【Background technique】 [0002] Polybutylene terephthalate-polyethylene oxide-polypropylene oxide thermoplastic elastomer is composed of 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 A polypropylene oxide polyether is used as the soft segment, and the mass percentage of the 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 phase struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/14D01F8/16D01F1/10D01D5/253D01D5/30D01D5/08
Inventor 张志明
Owner ZHEJIANG JINXIA NEW MATERIAL TECH CO LTD
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