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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 of aramid fiber and composite materials, but it cannot solve the problems of poor weaving performance of heterocyclic fibers and low quality of woven fabrics

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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