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A kind of spider silk-like polymer fiber based on polystyrene porous microspheres and preparation method thereof

A technology of porous microspheres and polystyrene, applied in the field of chemical bionics, can solve the problems of weak interaction between additives and fiber matrix and low cost, and achieve the effects of low cost, weakened influence, and simple process

Active Publication Date: 2022-07-12
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 polystyrene porous microspheres in the spinning process, the spindle structure can be obtained during the fiber preparation process, and the microfiber network can be formed inside the porous structure during the fiber formation process, to a certain extent Solve the problem of weak interaction between the additive and the fiber matrix, and reduce the influence of the additive on the mechanical properties of the fiber. This method does not require major changes to the existing spinning process, and the equipment does not need to be changed. From a technical point of view, it is simpler , the cost is also lower

Method used

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  • A kind of spider silk-like polymer fiber based on polystyrene porous microspheres and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 7 grams of polyvinyl alcohol (PVA 1799, Aladdin, degree of polymerization 1700, degree of alcoholysis 99%), 1.05 grams of polystyrene porous microspheres (IPE-PST30, purchased from the National Biochemical Engineering Technology Research Center, average particle size) diameter of 30 microns, pore diameter of 20 to 120 nanometers, porosity of 20 to 50%), 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 spinning dope was extruded into methanol through a peristaltic pump for spinning: the actual extrusion rate was 0.02 ml per minute, the spinneret model was 25G (260 microns in diameter), and the take-up rate was 0.1 m per minute The fibers were kept in the coagulation bath for at least 5 minutes; after being fully dried and collected, the primary fibers were obtained; and the spider silk-like fibers were obtained by thermal drawing at 180 degrees Celsius to 10...

Embodiment 2

[0060] 7 grams of polyvinyl alcohol (PVA 1799, Aladdin, degree of polymerization 1700, degree of alcoholysis 99%), 2.1 grams of polystyrene porous microspheres (IPE-PST30, purchased from the National Biochemical Engineering Technology Research Center, average particle size) diameter of 30 microns, pore diameter of 20 to 120 nanometers, porosity of 20 to 50%), 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 spinning dope was extruded into methanol through a peristaltic pump for spinning: the actual extrusion rate was 0.02 ml per minute, the spinneret model was 25G (260 microns in diameter), and the take-up rate was 0.1 m per minute The fibers were kept in the coagulation bath for at least 5 minutes; after being fully dried and collected, the primary fibers were obtained; and the spider silk-like fibers were obtained by hot drawing at 180 degrees Celsius to 8 times...

Embodiment 3

[0062]6 grams of polyvinyl alcohol (PVA 2499, Aladdin, degree of polymerization 2400, degree of alcoholysis 99%), 0.9 grams of polystyrene porous microspheres (IPE-PST30, purchased from the National Biochemical Engineering Technology Research Center, average particle size) diameter of 30 microns, pore diameter of 20 to 120 nanometers, porosity of 20 to 50%) was dispersed in 44 grams of 1,4-dioxane (DMSO), heated and stirred at 80 degrees Celsius for 3 hours to obtain a uniform spinning dope. At room temperature, the spinning dope was extruded into methanol through a peristaltic pump for spinning: the actual extrusion rate was 0.02 ml per minute, the size of the spinneret was 25G (260 microns in diameter), and the take-up rate was 0.1 m per minute. The fibers were kept in the coagulation bath for at least 5 minutes; after being fully dried and collected, the primary fibers were obtained; and the spider silk-like fibers were obtained by hot drawing at 180 degrees Celsius to 8 ti...

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Abstract

The invention relates to a spider silk-like polymer fiber based on polystyrene porous microspheres and a preparation method thereof in the technical field of chemical bionics. The spider silk-like polymer fiber comprises the following components in parts by weight: 100 parts of fiber matrix polymer; 1 to 46 parts of polystyrene porous microspheres. The monofilament of the polymer fiber has a spider silk-like microstructure in which the spindle structure units are distributed at intervals, the radial height of the spindle structure units is 10-300 micrometers, and the axial length of the spindle structure units is 10 μm. ~1000 microns, and the pitch of the spindle segment structural units is 10 to 5000 microns. The method of the invention does not need to significantly change the existing spinning process, and the equipment does not need to be changed, the process is simple, and the cost is low. The spider silk-like polymer fiber obtained by the invention can realize the directional movement of water droplets on the surface of the fiber, has the function of collecting water, and has good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of chemical bionics, and more particularly, to a spider silk-like polymer fiber based on polystyrene porous microspheres and a preparation method thereof. Background technique [0002] Water resources are an important natural resource 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 about 0.26% of the total water on the earth. The sustainable utilization of water resources is the most important issue in the sustainable development and utilization of all natural resources. In today's society, the situation of shortage of fresh water resources is gradually emerging. About 1.5 billion people in more than 80 countries face freshwater shortages, of which 300 million people in 26 countries live in a state of complete water scarcity. It is estimated that by 2025, 3 billion pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10D01F6/50D01F6/54D01F6/94D01D5/06D01D5/20
CPCD01D5/06D01D5/20D01F1/10D01F6/50D01F6/54D01F6/94
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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