A spider silk-like polymer fiber based on spherical porous particles and its preparation method

A technology of porous particles and matrix polymer, which is applied in the field of chemical bionics, can solve the problems of low cost, weak interaction between additives and fiber matrix, etc., and achieves the effects of low cost, convenient collection and simple process

Active Publication Date: 2020-06-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the method of the present application, by adding spherical porous particles in the spinning process, the spindle structure can be obtained in the fiber preparation process, and the porous structure can solve the problem of weak interaction between the additive and the fiber matrix to a certain extent, reducing the The influence of additives on the mechanical properties of fibers, this method does not require major changes to the existing spinning process, and the equipment does not need to be changed. From the process point of view, it is simpler and the cost is lower

Method used

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  • A spider silk-like polymer fiber based on spherical porous particles and its preparation method
  • A spider silk-like polymer fiber based on spherical porous particles and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0055] 7 grams of polyvinyl alcohol (PVA1799, Aladdin, the degree of polymerization is 1700, the degree of alcoholysis is 99%), 1.05 grams of silica porous microspheres, dispersed in 43 grams of 1,4-dioxane (DMSO) , heated and stirred at 80 degrees Celsius for 2 hours to obtain a uniform spinning dope. At room temperature, the above-mentioned spinning stock solution is extruded into methanol by a peristaltic pump for spinning: the actual extrusion rate is 0.02 milliliters per minute, the spinneret model is 25G (260 microns in diameter), and the spinning rate is 0.1 meters per minute. Minutes, the fibers are in the coagulation bath for at least 5 minutes; after being fully dried and collected, the primary fibers are obtained; heat-stretched to 8 times the original length at 180 degrees Celsius, and the spider silk-like fibers are obtained, and the test results are shown in figure 1 . The diameter of the main body of the obtained fiber is 27 microns, the radial height of the sp...

Embodiment 2

[0065] With 7 grams of polyvinyl alcohol (PVA 1799, Aladdin, degree of polymerization is 1700, degree of alcoholysis is 99%), 2.1 grams of silicon dioxide porous microspheres (same as Example 1), are dispersed in 43 grams of 1,4-di Oxyhexane (DMSO), heated and stirred at 80 degrees Celsius for 2 hours to obtain a uniform spinning dope. At room temperature, the above-mentioned spinning stock solution is extruded into methanol by a peristaltic pump for spinning: the actual extrusion rate is 0.02 milliliters per minute, the spinneret model is 25G (260 microns in diameter), and the spinning rate is 0.1 meters per minute. Minutes, the fibers are in the coagulation bath for at least 5 minutes; after being fully dried and collected, the primary fibers are obtained; thermally stretched at 180 degrees Celsius to 8 times the original length, and the spider silk-like fibers are obtained. The diameter of the main body of the obtained fiber is 27 microns, the radial height of the spindle n...

Embodiment 3

[0068] With 6 grams of polyvinyl alcohol (PVA 2499, Aladdin, degree of polymerization is 2400, degree of alcoholysis is 99%), 0.9 grams of silicon dioxide porous microspheres (same as Example 1), are dispersed in 44 grams of 1,4-bis Oxyhexane (DMSO), heated and stirred at 80 degrees Celsius for 3 hours to obtain a uniform spinning dope. At room temperature, the above-mentioned spinning stock solution is extruded into methanol by a peristaltic pump for spinning: the actual extrusion rate is 0.02 milliliters per minute, the spinneret model is 25G (260 microns in diameter), and the spinning rate is 0.1 meters per minute. Minutes, the fibers are in the coagulation bath for at least 5 minutes; after being fully dried and collected, the primary fibers are obtained; thermally stretched at 180 degrees Celsius to 6 times the original length, and the spider silk-like fibers are obtained. The diameter of the main body of the obtained fiber is 25 microns, the radial height of the spindle ...

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Abstract

The invention relates to a spider silk-like polymer fiber based on spherical porous particles and a preparation method thereof in the technical field of chemobionics. The spider silk-like polymer fiber comprises the following components by weight: 100 parts of a fiber matrix polymer and 1-49 parts of spherical porous particles. The monofilament of the polymer fiber has a spider silk-like microstructure with spindle knot structural units in interval distribution, and the spindle knot structural units have a radial height of 10-300 microns, an axial length of 10-1000 microns, and an interval of10-5000 microns. The method provided by the invention has no need for substantial change of the existing spinning technology and has no need for change of equipment, the process is simple, and the cost is low. The spider silk-like polymer fiber obtained by the invention can realize directional movement of water droplets on the fiber surface, has water gathering function, and also has good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of chemical bionics, more specifically, a spider silk-like polymer fiber based on spherical porous particles and a preparation method thereof. Background technique [0002] Water resources are important natural resources for the development of human society. Although the amount of water on the earth is huge, it is very little that can be directly used by people for production and life, accounting for only 0.26% of the total water on the earth. The sustainable use of water resources is the most important issue in the sustainable development and utilization of all natural resources. In today's society, the shortage of fresh water resources is gradually emerging. About 1.5 billion people in more than 80 countries around the world face insufficient fresh water, and 300 million people in 26 countries live in a state of complete water shortage. It is estimated that by 2025, 3 billion people in the world will be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10D01F6/50D01F6/54D01F6/94D01D5/06
CPCD01D5/06D01F1/10D01F6/50D01F6/54D01F6/94
Inventor 乔金樑姜超戚桂村张晓红宋志海赖金梅蔡传伦李秉海王湘蒋海斌张江茹茹越高建明张红彬韩朋
Owner CHINA PETROLEUM & CHEM CORP
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