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Rough surface profiled fiber and preparation method and application thereof

A special-shaped fiber, rough surface technology, applied in the fiber field, can solve problems such as poor practicability, inability to be widely used, and low strength

Active Publication Date: 2017-12-08
北京京盛国泰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fiber itself is thinner and has lower strength, and, after CaCl 2 Solution treated is less strong and therefore less practical for wider applications

Method used

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  • Rough surface profiled fiber and preparation method and application thereof
  • Rough surface profiled fiber and preparation method and application thereof
  • Rough surface profiled fiber and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] The invention provides a method for preparing a shaped fiber with a rough surface, the method comprising the following steps:

[0046] Step 1. Spinning with a special-shaped spinneret to obtain a fiber primary product;

[0047] Step 2, corroding the obtained fiber primary product;

[0048] Step 3, cleaning and drying after the corrosion treatment to obtain the final fiber product, that is, the irregular fiber with a rough surface.

[0049] According to a preferred embodiment of the present invention, a plurality of spinneret holes 1 are arranged on the special-shaped spinneret, such as figure 1 As shown, the spinneret holes 1 are evenly arranged in corolla along the center of the spinneret, that is, they are arranged in concentric circles with the center of the spinneret as the center, and the distances between the connected spinneret holes 1 are equal.

Embodiment approach

[0050] According to a preferred embodiment of the present invention, there are 4 to 8 spinneret holes 1 .

[0051] In a further preferred embodiment, there are six spinneret holes 1 .

[0052] According to a preferred embodiment of the present invention, such as figure 2 As shown, along the melt flow direction, the spinneret hole 1 includes a guide hole 11, a tapered hole 12 and a microhole 13.

[0053] In a further preferred embodiment, the indexing cone angle of the tapered hole 12 is 30° to 60°.

[0054] In a further preferred embodiment, the indexing cone angle of the tapered hole 12 is 60°.

[0055] According to a preferred embodiment of the present invention, such as image 3 As shown, the outer contour of the microhole 13 is a star structure 131, and the star structure 131 includes a plurality of star arms 1311.

[0056] Among them, the micropores are set in a star-shaped structure, so that the fibers with a star-shaped cross-section can be extruded, so that the fi...

Embodiment 1

[0152] Nylon 6 granules (viscosity 2.4) produced by Guangdong Xinhui Meida were used as raw material to spin at 230°C to obtain the primary fiber product. Figure 8 The spinneret shown, meanwhile, controls the spinning speed to be 30 m / min, and the frequency of the metering pump is 10 Hz.

[0153] Scanning electron microscope test is carried out to the fiber initial product that obtains, and the result is as follows: Figure 9a , as shown in Figure 9b, it can be seen from the figure that the radial cross-section of the obtained fiber primary product has a hexagonal star structure, and the thickness is uniform along the longitudinal direction, and the surface morphology is good.

[0154] Put the raw fiber product obtained above into a 1mol / L sulfuric acid solution for corrosion treatment for 5 seconds, then wash and dry to obtain the final fiber product, namely the shaped fiber.

[0155] Carry out scanning electron microscope test to the surface of the special-shaped fiber tha...

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Abstract

The invention discloses a rough surface profiled fiber and a preparation method and application thereof. The preparation method of the rough surface profiled fiber comprises the following steps of spinning yarns through a profiled spinneret to obtain initial fiber products; performing corrosion treatment on the obtained initial fiber products; performing washing and drying processes to obtain finished fiber products, namely, rough surface profiled fiber, wherein the process of spinning the yarns through the profiled spinneret produces the initial fiber products with the radial cross section in a star shape, then the initial fiber products are corroded, and a number of corrosive pits are formed in the surface of the obtained finished fiber products, namely, the surface obtains certain roughness to further improve condensate performance. The profiled fiber with the corrosive pits in the surface is made of polar polymers, thereby having high water absorbency, the star-shaped structure provides sliding channels for collected water, and meanwhile, the surface roughness can further improve the condensate performance of the fiber.

Description

technical field [0001] The invention relates to the field of fibers, in particular to the preparation of fibers, in particular to a preparation method of profiled fibers with rough surfaces, the obtained fibers and applications. Background technique [0002] At present, some new ways for human beings to obtain water sources include seawater desalination and sewage treatment, etc., but these methods are cumbersome, not only waste a lot of energy, but also the operation process is relatively complicated. In recent years, researchers have carried out a lot of research on this issue, and explored a new way of obtaining fresh water resources from the air, referred to as air water extraction. Water intake by air is also ubiquitous in daily life, such as when taking a shower, the water droplets that condense on the bathroom walls and mirrors cannot fall off quickly. [0003] Therefore, need a kind of material or method badly, allow water vapor to condense into water bead fast and ...

Claims

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Application Information

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IPC IPC(8): D01D5/247D01D5/253
CPCD01D5/247D01D5/253
Inventor 鲍亚楠李明健徐怡庄
Owner 北京京盛国泰科技有限公司
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