Porous fine denier nylon fiber used for water collection

A technology of nylon fiber and fine denier, which is applied in the field of water collection of porous fine denier nylon fiber. The operation process is simple and the effect of low economic cost

Inactive Publication Date: 2014-08-06
PEKING UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two types of methods need to consume a lot of energy, and the operation process is complicated, and it is difficult to achieve large-scale desalination of seawater. In order to solve the problem of scarcity of fresh water resources, it is necessary to develop a method of fresh water collection with low energy consumption.

Method used

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  • Porous fine denier nylon fiber used for water collection
  • Porous fine denier nylon fiber used for water collection
  • Porous fine denier nylon fiber used for water collection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 80 parts of nylon 6 slices, 20 parts of zinc sulfate, 10101 parts of antioxidant, 12 parts of antistatic agent PEG60012, and PEG200003 parts (both parts by weight) are made into additive masterbatch, and then according to the weight of additive masterbatch and nylon 6 slices The ratio is 7:1000 and melt spinning is carried out after mixing. The temperature of the melt in each zone of the screw extruder is 250°C, 270°C, 270°C and 275°C, and the spinning temperature is 250°C. The hole diameter of the spinneret used is 0.35 mm, the length is 0.7 mm, the winding speed is 1700 m / min, and the fineness of the fine-denier nylon fiber is 0.8 denier.

experiment example

[0064] The 0.8-denier nylon used in this experimental example was prepared in Example 1.

[0065] The 17-denier nylon is: Zhejiang Meisibang Chemical Fiber Co., Ltd., FDY (fully drawn yarn).

experiment example 1

[0066] Experimental Example 1 The relationship between the richness of the porous structure of fine-denier nylon fibers and the processing time

[0067] Take 6 groups of 0.8-denier nylon 6 fibers, 1 g for each group, and use saturated CaCl 2 Solution immersion treatment, treatment for 15min, 30min, 45min, 1h, 1.5h and 2h respectively, after the treatment, the porous nylon fine denier fiber obtained by the above treatment was characterized by scanning electron microscope (SEM), the results are as follows Figure 1~6 Shown:

[0068] Depend on Figure 1~6 It can be clearly seen that the surface of nylon fiber gradually changes from dense to porous structure. The longer the treatment time, the more obvious the change becomes, and the micropores on the surface are closer to the spider silk structure, which is more conducive to water collection. However, when the treatment time After reaching 2 hours, its surface structure does not continue to change, and the water collection capa...

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PUM

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Abstract

The invention discloses a porous fine denier nylon fiber used for water collection. Through appropriate processing of a nylon fiber, the porous fine denier nylon fiber can be prepared. The porous fine denier nylon fiber is of a certain micro/nano structure, moisture in air can be condensed into small water drops on the surface of the porous fine denier nylon fiber, the small water drops move directionally on the surface of the fiber to converge to form large water drops, finally the large water drops are separated from the surface of the fiber to enable the surface of the fiber to restore, and therefore the porous fine denier nylon fiber has the effect of a phase shift catalyst. The large water drops obtained through convergence can be obtained through collection, and therefore a potential solution is provided for solving the problem of water resource shortage.

Description

technical field [0001] The invention belongs to the field of nylon application, in particular to the application of porous fine-denier nylon fiber for water collection. Background technique [0002] Water shortage is an important obstacle on the road of human sustainable development. The reason for the shortage is not only the limited amount of water resources and their uneven distribution on a global scale, but also the low ability of human beings to utilize fresh water resources. This includes not only the lack of fresh water collection means, but also the use of energy for the development and utilization of fresh water. The problem of excessive consumption, taking seawater desalination as an example, the conventional desalination methods currently used can basically be divided into two categories: distillation and reverse osmosis. Distillation is to convert fresh water in seawater into water vapor by heating, and then evaporate it. The water vapor condenses into liquid w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B3/28B01D53/04B01D53/26D06M11/155D01F6/90D06M101/34
Inventor 郭然高云龙袁林郝超伟来国桥陆达天徐怡庄吴瑾光
Owner PEKING UNIV
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