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Preparation method of highly oriented modified polyesteramide fiber filaments

A polyamide polyester fiber and polyamide polyester technology, which is applied in the direction of single-component polyester rayon, rayon manufacturing, fiber chemical characteristics, etc., can solve the problems of long process flow, high product price, and many quality control points. , to achieve the effect of soft and comfortable product and obvious reduction of production cost

Active Publication Date: 2014-07-30
SINOPEC YIZHENG CHEM FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the general polyester fiber adopts the POY-DTY or FDY process route, wherein in the POY-DTY process route, the POY spinning speed is 1800-3200m / min, and the second hot roller speed in the FDY process route is 3200-5200m / min, The above process mainly has the following disadvantages: (1) The process is long, there are many quality control points, and the quality risk is high
(2) The process is long, the energy consumption is high, and the product price is high
(3) The fleece fabric made of fiber is not comfortable and soft enough, and the pile effect is not good
However, the ultra-high-speed spinning process route has high requirements for chip viscosity, water content and melt fluidity. Due to poor thermal stability, conventional polyamide ester chips are often excessively degraded during chip drying and melting, so this process route cannot be used. Production

Method used

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  • Preparation method of highly oriented modified polyesteramide fiber filaments
  • Preparation method of highly oriented modified polyesteramide fiber filaments
  • Preparation method of highly oriented modified polyesteramide fiber filaments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 100 parts of terephthalic acid, 60 parts of ethylene glycol, and 0.05 parts of antimony triacetate into a stainless steel reactor, control the reaction temperature at 235°C, and the reaction pressure at 0.25 MPa, and carry out the esterification reaction for 2 hours; after the reaction, put in PA630 with a relative viscosity of 2.0 share, 0.57 parts of L11, 0.38 parts of trimethyl phosphite, stirred for 10 minutes, then the temperature was set to 260°C, the pressure was gradually reduced to 50 Pa within 45 minutes, and the reaction was continued for 105 minutes to obtain the modified polyesteramide.

Embodiment 2

[0025] Put 100 parts of terephthalic acid, 50 parts of ethylene glycol, and 0.05 parts of antimony triacetate into a stainless steel reactor, control the reaction temperature at 265°C, and the reaction pressure at 0.2 MPa, and carry out the esterification reaction for 2 hours; after the reaction, put in PA1110 with a relative viscosity of 2.1 part, DH201-4600.5 part and stirred for 60min, then the temperature was set to 265°C, the pressure was gradually reduced to 300Pa within 50min, and the reaction was continued for 95min to obtain the modified polyesteramide.

Embodiment 3

[0027] Put 100 parts of terephthalic acid, 60 parts of ethylene glycol, and 0.05 parts of antimony triacetate into a stainless steel reactor, control the reaction temperature at 235°C, and the reaction pressure at 0.25 MPa, and carry out esterification reaction for 1 hour; after the reaction, put in PA620 with a relative viscosity of 2.2 share, 10.18 parts of H16, 0.09 parts of phosphorous acid, stirred for 10 minutes, then the temperature was set to 260 ° C, the pressure was gradually reduced to 50 Pa within 45 minutes, and the reaction was continued for 106 minutes to obtain the modified polyesteramide.

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Abstract

The invention provides a preparation method of highly oriented modified polyesteramide fiber filaments, which comprises the following steps: performing an esterification reaction of terephthalic acid with glycol to obtain ethylene glycol terephthalate, then performing a condensation polymerization reaction with fatty polyamide in the presence of additives A, B, and C to obtain modified polyesteramide slices, performing superspeed spinning of the modified polyesteramide slices to obtain the highly oriented polyesteramide fiber filaments which meet the elasticity effect requirements of special fabrics, and can be used in fields such as circular knitting machine and the like. The preparation method effectively reduces the production cost of polyesteramide fibers, and the product has certain improvement in product quality stability, dyeing performance and handfeel, when compared with traditional filament fibers.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a polyamide ester and a preparation method thereof, in particular to a preparation method for preparing highly oriented fiber filaments from a modified polyamide ester. Background technique [0002] As the basic industry of the textile industry, chemical fiber has always been a key industry in my country's planned development. From January to September 2013, my country's chemical fiber output was 30.46 million tons, of which polyester fiber output was 23.91 million tons, accounting for 78.5%. Although some technologies and products of polyester fiber in my country have reached the international advanced level, they are also facing outstanding problems such as few high value-added functional varieties, low output, low quality, fierce homogenization competition, and low profit margins in the industry. Super imitation cotton technology represents the highest level of sy...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10C08G63/685
Inventor 时文赵付平龚柳柳姚学金
Owner SINOPEC YIZHENG CHEM FIBER