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Full-body porous polycaprolactone fiber and preparation method thereof

A polycaprolactone and fiber technology, applied in fiber processing, textile and papermaking, filament/thread forming, etc., can solve the problems of spinning solution polarity, affecting fiber structure and performance, affecting fiber purity, etc. Achieve good biocompatibility and mechanical properties, ultra-high specific surface area and porosity, and simple production process

Inactive Publication Date: 2020-04-14
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can control the size and shape of the pores in the fiber by controlling the particle shape of the solid substance, but the additive may remain in the fiber, which affects the purity of the fiber on the one hand, and affects the structure and performance of the fiber on the other hand. , and the post-processing process is also easy to cause damage to the fiber itself
[0007] Generally speaking, the one-step liquid phase separation porosity requires strict control of the experimental environment and conditions; the multi-step solid phase separation porosity operation is more complicated, impurities cannot be completely removed and may cause damage to the fiber
Although electrospinning can quickly and conveniently prepare porous micro-nano fibers, there are also the following problems: (1) High voltage above kilovolts is required, which has potential safety hazards; (2) There are requirements for the polarity of the spinning solution ; (3), production efficiency is low
[0009] At present, there are very few studies on the preparation of porous micro-nano fibers by centrifugal spinning

Method used

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  • Full-body porous polycaprolactone fiber and preparation method thereof
  • Full-body porous polycaprolactone fiber and preparation method thereof
  • Full-body porous polycaprolactone fiber and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A kind of whole body porous polycaprolactone fiber, its preparation method comprises the steps:

[0040] (1) Build a centrifugal spinning device: install 3 fan blades under the spinneret hole of the traditional solution centrifugal spinning device;

[0041] (2) Preparation of spinning solution: 1.5g of polycaprolactone was added to 10mL of dichloromethane, and stirred evenly at room temperature to make a polycaprolactone spinning solution with a concentration of 0.15g / mL;

[0042] (3) Carry out centrifugal spinning: (2) gained solution is injected in the spinneret, under the parameter that 1500rpm / min, receiving distance are carried out centrifugal spinning under the parameter of 8cm by (2) gained solution, obtain polycaprolactone porous fiber (such as figure 2 , 3 shown).

Embodiment 2

[0044] A kind of whole body porous polycaprolactone fiber, its preparation method comprises the steps:

[0045] (1) Build a centrifugal spinning device: install 3 fan blades under the spinneret hole of the traditional solution centrifugal spinning device;

[0046] (2) Preparation of spinning solution: 1.7g of polycaprolactone was added to 10mL of dichloromethane, and stirred evenly at room temperature to make a polycaprolactone spinning solution with a concentration of 0.17g / mL;

[0047] (3) Carry out centrifugal spinning: (2) gained solution is injected in the spinneret, is that 2000rpm / min, receiving distance are carried out centrifugal spinning under the parameter of 10cm at the number of revolutions, obtains polycaprolactone porous fiber (such as Figure 4 , 5 shown).

Embodiment 3

[0049] A kind of whole body porous polycaprolactone fiber, its preparation method comprises the steps:

[0050] (1) Build a centrifugal spinning device: install 3 fan blades under the spinneret hole of the traditional solution centrifugal spinning device;

[0051] (2) Preparation of spinning solution: 1.9g of polycaprolactone was added to 10mL of dichloromethane, and stirred evenly at room temperature to make a polycaprolactone spinning solution with a concentration of 0.19g / mL;

[0052] (3) Carry out centrifugal spinning: (2) gained solution is injected in the spinneret, is that 2500rpm / min, receiving distance are carried out centrifugal spinning under the parameter that is 12cm at the number of revolutions, obtains polycaprolactone porous fiber (such as Figure 6 , 7 shown).

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Abstract

The invention discloses a full-body porous polycaprolactone fiber and a preparation method thereof. The polycaprolactone fiber is of a porous structure. The preparation method comprises the steps of:adding polycaprolactone into methylene chloride, and uniformly stirring at the room temperature; and injecting the obtained solution into a centrifugal spinning device to carry out centrifugal spinning so as to obtain the porous polycaprolactone fiber. According to the invention, a pore-forming agent or postprocessing is not required, volatilization of a solvent is accelerated by utilizing gas flow generated by high-speed rotation of fan blades, and phase separation is induced to form pores. The obtained polycaprolactone fiber is porous in a full-body mode, has an ultrahigh porosity and specific surface area, meanwhile, also has excellent mechanical performance and excellent biocompatibility, and is expected to be applied to the field of tissue engineering. The preparation method is clearin thinking, simple to operate and high in preparation efficiency.

Description

technical field [0001] The invention relates to a whole-body porous polycaprolactone fiber and a preparation method thereof, belonging to the technical field of preparation of porous fiber materials. Background technique [0002] With the continuous development and progress of science and technology, human eyes have gradually shifted from the macrocosm to the microcosm. Micro-nano materials have attracted extensive attention due to their unique physical and chemical properties. Micro-nano fibers are a common micro-nano material. Micro-nano fiber membranes are widely used because of their ultra-high specific surface area and controllable pore size. High-efficiency filtration barrier materials, biological tissue engineering, ultra-high sensitivity sensors and other fields. [0003] With the deepening of research, researchers found that the application potential of micro-nano fiber membrane is closely related to its specific surface area, and its application performance increa...

Claims

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Application Information

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IPC IPC(8): D01D5/247D01D5/18
CPCD01D5/18D01D5/247
Inventor 王富军周俊泽刘来俊李可李超婧王璐蒋冠森甘以明
Owner DONGHUA UNIV
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