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Bionic spider silk-like polymer fiber with water collecting characteristic and preparation method thereof

A spider silk and polymer technology, applied in the field of chemical bionics, can solve the problems of few types of polymers and expensive electrospinning equipment

Active Publication Date: 2018-10-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the equipment for electrospinning is more expensive, and there are fewer types of polymers that can be electrospun

Method used

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  • Bionic spider silk-like polymer fiber with water collecting characteristic and preparation method thereof
  • Bionic spider silk-like polymer fiber with water collecting characteristic and preparation method thereof
  • Bionic spider silk-like polymer fiber with water collecting characteristic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 7 grams of polyvinyl alcohol (PVA 1799, Aladdin, the degree of polymerization is 1700, and the degree of alcoholysis is 99%), 0.7 grams of carboxylated styrene-butadiene spray-dried powder rubber, dispersed in 43 grams of 1,4-dioxane (DMSO ), heated and stirred at 80°C for 2 hours to obtain a uniform spinning dope. At room temperature, the above-mentioned spinning stock solution is extruded into a coagulation bath (a mixed solution of methanol and DMSO, in 100 parts by weight of methanol, 20 parts by weight of DMSO) by a peristaltic pump for spinning: the actual extrusion rate is 0.01 milliliters per minute, The spinneret size was 25G (round, 260 microns in diameter), the take-up speed was 0.42 meters per minute, and the fibers were in the coagulation bath for at least 5 minutes. The obtained fibers were collected after being fully dried in the air to obtain the polymer fibers of the biomimetic spider silk with water-collecting properties, and tested. The test results a...

Embodiment 2

[0054] With 7 grams of polyvinyl alcohol (PVA 1799, Aladdin, degree of polymerization is 1700, degree of alcoholysis is 99%), 1.4 grams of carboxylated styrene-butadiene spray-dried powder rubber (same as Example 1), dispersed in 43 grams of 1,4- In dioxane (DMSO), heat and stir at 80° C. for 2 hours to obtain a uniform spinning dope. At room temperature, the above-mentioned spinning stock solution is extruded into a coagulation bath (a mixed solution of methanol and DMSO, in 100 parts by weight of methanol, 20 parts by weight of DMSO) by a peristaltic pump for spinning: the actual extrusion rate is 0.01 milliliters per minute, The spinneret size was 25G (round, 260 microns in diameter), the take-up speed was 0.42 meters per minute, and the fibers were in the coagulation bath for at least 5 minutes. The obtained fibers were collected after being fully dried in the air to obtain the polymer fibers of the biomimetic spider silk with water-collecting properties, and tested. The t...

Embodiment 3

[0056] With 7 grams of polyvinyl alcohol (PVA 1799, Aladdin, degree of polymerization is 1700, degree of alcoholysis is 99%), 2.1 grams of carboxylated styrene-butadiene spray-dried powder rubber (same as Example 1), dispersed in 43 grams of 1,4- In dioxane (DMSO), heat and stir at 80° C. for 2 hours to obtain a uniform spinning dope. Under room temperature conditions, the above-mentioned spinning stock solution is extruded into a coagulation bath (a mixed solution of methanol and DMSO, based on 100 parts by weight of methanol, 20 parts by weight of DMSO) through a peristaltic pump for spinning: the extrusion rate is 0.01 milliliters per minute, spray The filament head type is 25G (circular shape, 260 microns in diameter), the take-up speed is 0.42 meters per minute, and the fiber is in the coagulation bath for at least 5 minutes. The obtained fibers were collected after being fully dried in the air to obtain the polymer fibers of the biomimetic spider silk with water-collecti...

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Abstract

The invention relates to a bionic spider silk-like polymer fiber with a water collecting characteristic and a preparation method thereof, belonging to the field of chemical bionic technology. The bionic spider silk-like polymer fiber with the water collecting characteristic comprises, by weight, 100 parts of a fiber matrix polymer and 1 to 50 parts of spray-dried powdered rubber. The filament of the polymer fiber has a spider silk-like microstructure with spindle knot units and joint units distributed at intervals, wherein each spindle knot unit has a radial height of 10 to 300 [mu]m and an axial length of 10 to 1000 [mu]m; the diameters of the joint units are in a range of 5 to 200 [mu]m; and the lengths of the joint units are in a range of 10 to 5000 [mu]m. According to the invention, the method can be implemented by using traditional spinning equipment without any extra additional equipment, and is simple and stable in process and capable of realizing continuous large-scale preparation. The prepared fiber with a bionic spider silk structure in the invention has low cost and good stability.

Description

technical field [0001] The invention relates to the field of chemical biomimetic technology, and more particularly relates to a biomimetic spider silk polymer fiber with water-collecting properties and a preparation method thereof. Background technique [0002] In today's society, the shortage of fresh water resources is gradually emerging. The 47th session of the United Nations General Assembly designated March 22 each year as "World Water Day", calling on all countries in the world to be highly alert to the global shortage of fresh water resources. China is recognized by the United Nations as one of the 13 poorest freshwater countries in the world. The total amount of fresh water resources in my country ranks sixth in the world, but the per capita share is only 1 / 4 of the world average, ranking 109th in the world. The shortage of fresh water resources has affected economic development to a certain extent. Therefore, in order to ensure the sustainable development of our ...

Claims

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Application Information

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IPC IPC(8): D01F6/50D01F1/10D01F11/06D01F6/54D01F6/60D01F6/70D01D1/02C08F279/02C08F220/18C08F222/14C08F253/00C08J3/12C08L7/02C08L13/02C08L9/04
CPCD01D1/02D01F1/10D01F6/50D01F6/54D01F6/60D01F6/70D01F11/06C08F253/00C08F279/02C08J3/122C08J2309/04C08J2307/02C08J2313/02C08F222/103C08F220/1808
Inventor 张晓红姜超乔金樑戚桂村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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