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Method and equipment for continuous production of antistatic polyester

A technology of antistatic and polymerization equipment, which is applied in the field of continuous production of antistatic polyester and equipment, can solve the problems of degraded blend quality deterioration, environmental impact, high cost, etc., and achieve low production costs, stable varieties, and simple methods Effect

Inactive Publication Date: 2008-03-12
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sending the polyester in solid form to the blend production site requires the polyester to be cooled in the production unit and then optionally pelletized to achieve solidification. This commonly used traditional method brings the following disadvantages: cooling, solidification, pelletizing, The steps described, such as storage, transportation and melting, are costly and complicated
Moreover, the required energy consumption necessarily results in an environmental impact
Melting of the blending components in the compounding equipment constitutes additional exposure of the polyester to high temperatures, which causes degradation and thus deterioration of the quality of the blend produced

Method used

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  • Method and equipment for continuous production of antistatic polyester
  • Method and equipment for continuous production of antistatic polyester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Use terephthalic acid and ethylene glycol as raw materials to carry out esterification reaction at 200-260°C (example 200°C, 230°C, 260°C), and then carry out esterification reaction at 280-300°C (example 280°C, 290°C, 300°C) ) temperature and lower than 300Pa vacuum to carry out recondensation reaction, and continuously produce polyethylene terephthalate (abbreviated as: PET) melt with a viscosity of 0.655. The polyethylene terephthalate melt in the continuous polymerization equipment 1 is input through the main pipeline 2 at a speed of 1000kg / h at a temperature of 220-300°C (for example, 220°C, 240°C, 280°C, 300°C). In the blending device 3, the antistatic masterbatch is added to the hopper 6, connected to the polyester main pipeline through a pipeline, and the supply rate is 5kg / h. The mixture further enters the blending device 3 for blending treatment to obtain antistatic polyester. The blending temperature in the blending device 3 was 280°C. The content of the an...

Embodiment 6

[0027] Use terephthalic acid and ethylene glycol as raw materials to carry out esterification reaction at 200-260°C (example 200°C, 230°C, 260°C), and then carry out esterification reaction at 280-300°C (example 280°C, 290°C, 300°C) ) temperature and lower than 300Pa vacuum to carry out recondensation reaction, and continuously produce polyethylene terephthalate (abbreviated as: PET) melt with a viscosity of 0.655. The polyethylene terephthalate melt in the continuous polymerization equipment 1 is input through the main pipeline 2 at a speed of 1000kg / h at a temperature of 220-300°C (for example, 220°C, 240°C, 280°C, 300°C). Co-mixing device 3; antistatic masterbatch and antioxidant IR1010 (or antioxidant 1076, antioxidant TNP, 168) are mixed and then added to the hopper 6, connected to the polyester main pipeline through a pipeline, and the supply rate is 5kg / h. The mixture further enters the blending device 3 for blending treatment to obtain antistatic polyester. The blen...

Embodiment 7

[0029] The polyester melt synthesized in the polymerization equipment is polyethylene terephthalate or polybutylene terephthalate or polypropylene terephthalate; polyester, antistatic masterbatch two The amount of raw materials for each component is calculated by weight percentage: polyester 97% to 99.5% (97%, 98%, 99.5%), antistatic masterbatch 0.5% to 3% (3%, 2%, 0.5%) ). Excess polyester output pipes 4 and 5 are connected to the main pipe in the equipment, and the rest are the same as in embodiment 1. Hopper 7 is arranged among the figure. The excess polyester that is shunted out can be directly used for spinning, film-forming processing or making polyester chips.

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Abstract

The invention discloses a method and an equipment for producing continuously anti-static polyester. The method comprises: delivering through a main pipe the polyester melt polymerized in a polymerizing device into an alloying device, adding some anti-static mother particles into the alloying device, and alloying them. The equipment comprises a continuous polymerizing device, which is connected with an alloying device through a main pipe. A hopper containing the anti-static mother particles is connected with the alloying device through the pipe. The invention has a simple method, reasonable equipment structure, and is easy to operate. The anti-static components are evenly dispersed, the type is steady. The produced polyester is of high quality and low production cost.

Description

Technical field: [0001] The invention relates to a production method and equipment of antistatic polyester. Background technique: [0002] Polyester fiber is the most widely used synthetic fiber, but due to its poor hygroscopicity, high specific resistance, and serious static electricity, it brings inconvenience to production and use, and limits its application range. Therefore, the research and development of antistatic fibers has become one of the important research topics in the field of textiles. [0003] In the process of textile processing or use, the contact and friction of fiber materials with each other or with other objects will generate electrification. If the charge continues to accumulate and cannot be eliminated, it will cause various electrostatic phenomena. Static electricity makes it difficult to process textiles, and it is easy to absorb dirt, entangle the human body or clothes, and the electric sparks generated by static electricity can cause explosions a...

Claims

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Application Information

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IPC IPC(8): C08L67/03C08K5/42C08L71/00C08L77/00
Inventor 杨娟李旭本田圭介
Owner TORAY FIBER RES INST(CHINA) CO LTD
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