Secondary oiling agent treatment method of heterocyclic aramid

A technology of heterocyclic aramid fiber and processing method, applied in the direction of fiber treatment, heating/cooling fabric, fiber type, etc., can solve the problems of poor weaving performance of heterocyclic fiber and low quality of woven fabric, etc.

Active Publication Date: 2022-02-22
中蓝晨光化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It can be seen that the existing technology is mainly aimed at modifying the surface of aramid fiber III to improve the interfacial properties ...

Method used

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  • Secondary oiling agent treatment method of heterocyclic aramid
  • Secondary oiling agent treatment method of heterocyclic aramid
  • Secondary oiling agent treatment method of heterocyclic aramid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 Shown, a kind of secondary oil treatment method of heterocyclic aramid fiber, described method comprises the steps:

[0047] A. Unwinding: Under the condition of a tension of 0.5cN / tex, the heterocyclic aramid raw yarn is unwound from the unwinding machine, so that the raw yarn is evenly unwound from the bobbin at a speed of 35m / min;

[0048] B. First-stage oiling treatment: the raw yarn of heterocyclic aramid fiber is unwound from the unwinding machine and enters the first-stage oiling machine (namely, 1# oiling machine), and the raw silk is immersed in the oiling agent. Carry out continuous and stable oiling treatment at an oil circulation rate of 5L / min;

[0049] C. Drying and heat treatment: the oiled raw silk is dried at 160°C for 0.5min by a dryer and then enters the heat treatment tunnel (temperature 330°C, treatment time 0.6min) for heat setting treatment;

[0050] D. Second-stage oiling treatment: the raw silk becomes finished silk after heat...

Embodiment 2

[0056] Such as figure 1 Shown, a kind of secondary oil treatment method of heterocyclic aramid fiber, described method comprises the steps:

[0057] A. Unwinding: Under the condition of a tension of 0.1cN / tex, the heterocyclic aramid raw yarn is unwound from the unwinding machine, so that the raw yarn is evenly unwound from the bobbin at a speed of 10m / min;

[0058] B. First-stage oiling treatment: the raw yarn of heterocyclic aramid fiber is unwound from the unwinding machine and enters the first-stage oiling machine (namely, 1# oiling machine), and the raw silk is immersed in the oiling agent. Carry out continuous and stable oiling treatment at an oil circulation rate of 2L / min;

[0059] C. Drying and heat treatment: the oiled raw silk is dried at 140°C for 1 minute by the dryer and then enters the heat treatment tunnel (temperature 300°C, treatment time 1 minute) for heat setting treatment;

[0060] D. Second-stage oiling treatment: the raw silk becomes finished silk afte...

Embodiment 3

[0066] Such as figure 1 Shown, a kind of secondary oil treatment method of heterocyclic aramid fiber, described method comprises the steps:

[0067] A. Unwinding: Under the condition of a tension of 0.8cN / tex, the heterocyclic aramid raw yarn is unwound from the unwinding machine, so that the raw yarn is evenly unwound from the bobbin at a speed of 50m / min;

[0068] B. First-stage oiling treatment: the raw yarn of heterocyclic aramid fiber is unwound from the unwinding machine and enters the first-stage oiling machine (namely, 1# oiling machine), and the raw silk is immersed in the oiling agent. Carry out continuous and stable oiling treatment at an oil circulation rate of 10L / min;

[0069] C. Drying and heat treatment: the oiled raw silk is dried at 180°C for 0.2min by a dryer, and then enters the heat treatment tunnel (temperature 350°C, treatment time 0.5min) for heat setting treatment;

[0070] D. Second-stage oiling treatment: the raw silk becomes finished silk after he...

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Abstract

The invention discloses a secondary oiling agent treatment method for heterocyclic aramid fibers, and belongs to the technical field of chemical fibers. In a spinning process, first-stage oiling agent treatment is carried out on a heterocyclic aramid precursor, drying and heat treatment are carried out, then second-stage oiling agent treatment is carried out, and then the heterocyclic aramid fiber is wound and formed. The first-stage oiling agent is prepared from isooctyl stearate, fatty alcohol potassium phosphate, polyethylene glycol monooleate and polyoxyethylene sorbitan monooleate; and the second-stage oil agent is prepared from lauryl amine polyoxyethylene ether, dioctyl sodium sulfosuccinate and polyoxyethylene ether sorbitan monooleate. The heterocyclic aramid fiber finished silk fiber treated by two-stage different oil agents is small in mechanical property loss in the forming processing process and good in weaving performance and can be used for preparing high-quality woven cloth, meanwhile, the warp-wise tensile strength and the weft-wise tensile strength of the woven cloth reach 20.3 KN/5cm and 21.5 KN/5cm respectively, and the heterocyclic aramid fiber finished silk fiber is suitable for manufacturing high-tech products such as bulletproof chips, aircraft skins and linear motors.

Description

technical field [0001] The invention relates to a manufacturing technology of heterocyclic aramid fibers, more specifically, the invention relates to a secondary oil treatment method for heterocyclic aramid fibers, which belongs to the technical field of chemical fibers. Background technique [0002] Heterocyclic aramid fiber is a ternary, quaternary or quinary copolymer fiber based on the molecular structure of domestic aramid fiber III and modified by molecular chain structure. Domestic aramid III is a heterocyclic aromatic polyamide fiber similar to Russian APMOC fiber. Aramid III polymer is formed by the copolymerization of three monomers: terephthaloyl chloride, p-phenylenediamine, and 5(6)-amino-2-(4-aminophenyl)benzimidazole. [0003] The key preparation technology of heterocyclic aramid is usually divided into two processes. The first step is the polymerization process, that is, the preparation of polymers; the second step is the spinning process, that is, the prep...

Claims

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Application Information

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IPC IPC(8): D06M13/224D06M13/292D06M15/53D06M13/256D06C7/02D06M101/36
CPCD06M13/224D06M13/292D06M15/53D06M13/2246D06M13/256D06C7/02D06M2101/36D06M2200/40Y02P70/62
Inventor 刘克杰彭涛叶瑞张俊华曾永荣张聪刘开勇
Owner 中蓝晨光化工有限公司
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