One-step high temperature and high pressure melt spinning equipment and production method of polymer fiber

A high temperature and high pressure, melt spinning technology, applied in the direction of melt spinning, single-component synthetic polymer rayon, fiber chemical characteristics, etc., can solve the problems of high melt viscosity and poor fluidity, and achieve high crystallinity, operation Convenience and stable spinning operation

Active Publication Date: 2018-04-27
CHANGZHOU CHUANGYING NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aromatic polymers with high melting point and high melt viscosity, such as polyetheretherketone, polyaryletherketone, polyetherimide, etc., usually have a high melting temperature, and the melt viscosity after melting is relatively high, and the fluidity is relatively high. Poor, this type of polymer cannot be spun with usual melt spinning equipment

Method used

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  • One-step high temperature and high pressure melt spinning equipment and production method of polymer fiber
  • One-step high temperature and high pressure melt spinning equipment and production method of polymer fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see figure 1 , a one-step high temperature and high pressure melt spinning equipment, the spinning equipment includes a driving device, an extruder system, and a spinning device. The drive device includes a drive motor 1 and a deceleration device 2. The extruder system includes an extruder screw 5, a barrel 6, a feeding hopper 3, an electric heater 4 and an extruder head 7. A feeding hopper 3 and an electric heater 4 are arranged on the barrel of the extruder. One end of the extruder screw 5 is connected to the drive motor 1 through a deceleration device 2, and the other end is matched with the extruder head 7. The spinning equipment It also includes a filter device 8, a metering pump 9, a spinning box 10 and a spinning assembly 11. The spinning device is followed by a filter device 8, a metering pump 9, a spinning box 10, a spinning assembly 11, and a spinneret. 12. Slow cooling device 13, multifilament bundling device 14, oiling device 15, guide device 16, yarn separ...

Embodiment 2

[0024] see figure 1, as an improvement of the present invention, the spinning equipment also includes a stainless steel melt filter 8 , which is installed between the extruder head 7 and the metering pump 9 . The stainless steel filter 8 can remove gel and mechanical impurities from the polymer melt. The rest of the structure and advantages are exactly the same as in Embodiment 1.

Embodiment 3

[0026] see figure 1 , as an improvement of the present invention, the guide device includes a guide roller 16 and a spinning roller 17, the drafting device includes a first drafting roller 18, a second drafting roller 19 and a third drafting roller 20, The second drafting roll 19 is arranged between the first drafting roll 18 and the third drafting roll 20 . The drafting device gradually draws the raw filaments at different temperatures to increase the drafting ratio and the degree of molecular orientation of the fibers, thereby improving the properties of the fibers and avoiding the uneven orientation of the fibers or the breakage of the virgin yarns caused by excessive drafting ratios at one time. The prior art generally cannot directly draw high-performance polymer virgin yarns in-line. The rest of the structure and advantages are exactly the same as in Embodiment 1.

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Abstract

The invention discloses one-step method high-temperature and high-pressure melt spinning equipment and a production method of a polymer fiber and relates to the one-step method high-temperature and high-pressure melt spinning equipment. The spinning equipment is characterized by comprising a driving device, an extruder system and a spinning device, wherein the driving device comprises a driving motor and a speed reducing device; the extruder system comprises an extruder screw, a charging barrel, a loading hopper, an electric heater and an extruder head; the loading hopper and the electric heater are arranged on the charging barrel of an extruder; one end of the extruder screw is connected with the driving motor through the speed reducing device; the other end of the extruder screw is matched with the extruder head. The spinning equipment also comprises a melt filtering device, a metering pump, a spinning box body and a spinning component. The spinning device sequentially comprises the metering pump, the spinning box body, the spinning component, a spinneret plate, a coldness alleviating deice, a multifilament bundling device, an oiling device, a guide device, a hot roller drafting sizing device and a winding device. The high-temperature and high-pressure melt spinning equipment is special for melt spinning of polymers with high melting point, high melt viscosity and high performance, such as polyether-ether-ketone, polyaryletherketone and polyetherimide.

Description

technical field [0001] The invention relates to a melt spinning device, in particular to a one-step high temperature and high pressure melt spinning device and a method for producing high-performance polymer fibers. Background technique [0002] Thermoplastic polymers with high melting point and high melt viscosity mainly refer to aromatic polymers containing rigid groups or polar groups such as benzene rings, carbonyl groups, and sulfone groups. It can maintain a certain shape afterward. Most aliphatic or polyester thermoplastic polymers have good flexibility and low melting temperature, and are easy to be extruded, injected or blow molded. And most of the thermoplastic polymers mentioned above can be made into synthetic fibers by melt spinning. The general process is as follows: the polymer is melted and plasticized in the extruder barrel, spun through a spinneret, cooled, stretched and structured. Aromatic polymers with high melting point and high melt viscosity, such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/08D01D1/09D01D5/098D01F6/76
CPCD01D1/09D01D5/08D01D5/16D01F6/76
Inventor 王贵宾严留新许海军栾加双叶光斗
Owner CHANGZHOU CHUANGYING NEW MATERIAL TECH
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