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Preparation method for high-strength activated form polyester industrial yarns

An activated and industrial yarn technology, applied in the direction of single-component polyester rayon, fiber type, melt spinning method, etc., can solve the problems of oligomer affecting fiber quality, fiber uneven spinneret, etc., and achieve effective Good for fiber quality, improved performance, and easy diffusion

Active Publication Date: 2018-04-13
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the problem that the oil agent in the prior art volatilizes quickly and is easy to bond on the surface of the fiber, which causes uneven fiber and too many residual oligomers in the spinneret affect the quality of the fiber, and provides a spinning Preparation method of high-strength activated polyester industrial yarn that is uniform, produces less oligomers, and can significantly improve the quality of industrial yarn

Method used

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  • Preparation method for high-strength activated form polyester industrial yarns
  • Preparation method for high-strength activated form polyester industrial yarns
  • Preparation method for high-strength activated form polyester industrial yarns

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A preparation method of high-strength activated polyester industrial yarn, the steps are as follows:

[0064] (1) Preparation of oiling agent for oiling;

[0065]Mix 2-hydroxymethyl-12-crown-4 with potassium dodecyl phosphate, trimethylolpropane laurate and sodium dodecylsulfonate at room temperature and add to 9# mineral oil and uniformly stirred at 40°C for 1 hour to obtain an oil agent. The addition amount of each component is as follows in parts by weight: 2 parts of 9# mineral oil; 10 parts of trimethylolpropane laurate; 2-methylolpropane laurate Base-12-crown-4 is 90 parts; Potassium dodecyl phosphate is 8 parts; Sodium dodecyl sulfonate is 3 parts; The content of crown ether in the prepared oil is 79.6wt%. The high temperature resistance of the agent is excellent, and the thermal weight loss after heat treatment at 200°C for 2 hours is 14.5wt%; the viscosity of the oil agent is low, and the kinematic viscosity is 29.6mm at (50±0.01)°C 2 / s, the kinematic viscos...

Embodiment 2

[0070] A preparation method of high-strength activated polyester industrial yarn, the steps are as follows:

[0071] (1) Preparation of oiling agent for oiling;

[0072] Mix 15-crown ether-5 with potassium tridecyl alcohol polyoxyethylene ether phosphate, trimethylolpropane laurate and sodium pentadecylsulfonate at room temperature and add to 10# mineral oil and uniformly stirred at 43°C for 1.5h to obtain an oil agent. The addition amount of each component is as follows in parts by weight: 2 parts for 10# mineral oil; 15 parts for trimethylolpropane laurate; 15 parts for 15-crown Ether-5 is 70 parts; isomeric tridecanol polyoxyethylene ether phosphate potassium salt is 10 parts; sodium pentadecylsulfonate is 7 parts; the content of crown ether in the prepared oil agent is 67.30wt%, The oil agent has excellent high temperature resistance, and the thermal weight loss is 13wt% after heat treatment at 200°C for 2 hours; the viscosity of the oil agent is low, and the kinematic vi...

Embodiment 3

[0077] A preparation method of high-strength activated polyester industrial yarn, the steps are as follows:

[0078] (1) Preparation of oiling agent for oiling;

[0079] Mix 2-hydroxymethyl-15-crown-5 with tetradecyl alcohol phosphate potassium salt, trimethylolpropane laurate and sodium pentadecylsulfonate at room temperature and add to 11# mineral in oil and uniformly stirred at 48°C for 3 hours to obtain an oil agent. The addition amount of each component is as follows in parts by weight: 8 parts for 11# mineral oil; 10 parts for trimethylolpropane laurate; 10 parts for 2-hydroxy 85 parts of methyl-15-crown-5; 11 parts of potassium tetradecyl alcohol phosphate; 5 parts of sodium pentadecylsulfonate; the content of crown ether in the prepared oil is 70.83wt% , the high temperature resistance of the oil is excellent, the thermal weight loss is 11wt% after heat treatment at 200°C for 2 hours; the viscosity of the oil is low, at (50±0.01)°C, the kinematic viscosity is 30.1mm ...

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Abstract

The invention relates to a preparation method for high-strength activated form polyester industrial yarns. Polyester is subjected to solid phase polycondensation tackifying, melting, measurement, extrusion, cooling, oil application, stretching, thermoforming, activating oil application, coiling and pre-activation processing to obtain the high-strength activated form polyester industrial yarns. During cooling, longitudinal height is kept constant, the cross-sectional area of a slow cooling cavity is enhanced, meanwhile, the slow cooling cavity adopts a heat preservation way to keep the plate surface temperature of a spinneret plate; oil agent used for oil application contains crown ether, and the content of the crown ether is 67.30-85.58wt%; when the oil agent is used, the oil agent is prepared into emulsified liquid of which the concentration is 14-18wt%. The preparation method is reasonable and simple, the breaking strength of the prepared high-strength activated form polyester industrial yarns is greater than or equal to 8.1cN / dtex, wicking height is less than or equal to 5mm, and an application prospect is considerable.

Description

technical field [0001] The invention belongs to the field of fiber preparation and relates to a preparation method of high-strength activated polyester industrial yarn. Background technique [0002] Since the appearance of polyethylene terephthalate (PET) fiber, it has developed rapidly because of its excellent performance, and its output has become the crown of synthetic fiber in the world. Polyester fiber has a series of excellent properties such as high breaking strength, high elastic modulus, moderate resilience, excellent heat setting performance, good heat resistance and light resistance, acid resistance, alkali resistance and corrosion resistance, and the fabric prepared from it has wrinkle resistance. It is widely used in the fields of fiber, bottle packaging, film and sheet, etc., with the advantages of good stiffness and good stiffness. The output is increasing year by year, and the industry status has been significantly improved. [0003] Due to the small dielect...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F6/62D01D5/08D01D5/088D01D5/096D01D5/16D01D10/02D06M13/02D06M13/11D06M13/224D06M13/256D06M13/292D06M101/32
CPCD01D5/08D01D5/088D01D5/096D01D5/16D01D10/02D06M13/02D06M13/11D06M13/224D06M13/256D06M13/292D06M2101/32
Inventor 王山水张元华陈瑞邵义伟
Owner JIANGSU HENGLI CHEM FIBER
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