Electrostatic spinning preparation method of POSS (Polyhedral Oligomeric Silsesquioxane)-containing polymer composite fiber

An electrospinning and composite fiber technology, which is applied in the field of electrospinning preparation of POSS polymer composite fibers, can solve the problems of affecting the performance of composite materials, POSS agglomeration, poor dispersion of POSS particles, etc. Compatibility, short effect

Active Publication Date: 2012-07-18
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, POSS-containing polymer composites are prepared by the traditional melt blending method. Because POSS is prone to agglomeration, the dispersion of POSS particles in the matrix is ​​not good, which affects the further improvement of the performance of the composite material.

Method used

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  • Electrostatic spinning preparation method of POSS (Polyhedral Oligomeric Silsesquioxane)-containing polymer composite fiber
  • Electrostatic spinning preparation method of POSS (Polyhedral Oligomeric Silsesquioxane)-containing polymer composite fiber
  • Electrostatic spinning preparation method of POSS (Polyhedral Oligomeric Silsesquioxane)-containing polymer composite fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The concrete steps of preparation are:

[0026] Step 1, first mix the high molecular polymer and the corresponding polymer solvent according to the mass ratio of 2.5:97.5, then place it at a temperature of 30°C and stir for 2 hours to obtain a mixed solution with a concentration of 2.5%; the polymer is three Ethylene-propylene-diene rubber (EPDM), the solvent is tetrahydrofuran;

[0027] Step 2, then mix the soluble POSS (here phenyl-POSS) and the EPDM mixed solution obtained in step 1 according to the mass ratio of POSS:EPDM = 2:98, and stir at a temperature of 30°C for 15min, so that POSS is fully dissolved to obtain a spinning solution;

[0028] Step 3, and then the spinning solution is placed on the electrospinning equipment for spinning. The various experimental parameters are: applied voltage 20kV, distance from the spinning needle to the receiving device 20cm, spinning solution flow rate 3.0mL / h, spinning The silk collection method is flat plate collection, whi...

Embodiment 2

[0034] The concrete steps of preparation are:

[0035] Step 1, first mix the high molecular polymer and the corresponding polymer solvent according to the mass ratio of 3:97, and then stir at a temperature of 40°C for 2 hours to obtain a mixed solution of high molecular polymer with a concentration of 3%; Wherein the polymer is EPDM, and the solvent is tetrahydrofuran;

[0036] Step 2, then mix the phenyl-POSS and the EPDM mixed solution obtained in step 1 according to the mass ratio of POSS:EPDM = 5:95, and stir at a temperature of 40°C for 20 minutes to fully dissolve the POSS and obtain the spinning solution;

[0037] Step 3, and then the spinning solution is placed on the electrospinning equipment for spinning. The various experimental parameters are: applied voltage 22kV, distance from the spinning needle to the receiving device 18cm, spinning solution flow rate 2.5mL / h, spinning The silk collection method is flat plate collection, which is similar to figure 1 , figu...

Embodiment 3

[0039] The concrete steps of preparation are:

[0040] Step 1, first mix the high molecular polymer and the corresponding polymer solvent according to the mass ratio of 5:95, then place it at a temperature of 45°C and stir for 2.5 hours to obtain a mixed solution with a concentration of 5%; the polymer is EPDM, the solvent is tetrahydrofuran;

[0041] Step 2, then mix the phenyl-POSS and the EPDM mixed solution obtained in step 1 according to the mass ratio of POSS:EPDM = 8:92, and stir at a temperature of 45°C for 25 minutes to fully dissolve the POSS and obtain the spinning solution;

[0042] Step 3, and then the spinning solution is placed on the electrospinning equipment for spinning. The various experimental parameters are: applied voltage 25kV, distance from the spinning needle to the receiving device 15cm, spinning solution flow rate 2.0mL / h, spinning The silk collection method is flat plate collection, which is similar to figure 1 , figure 2 shown, and approximate...

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Abstract

The invention discloses an electrostatic spinning preparation method of POSS (Polyhedral Oligomeric Silsesquioxane)-containing polymer composite fiber. The electrostatic spinning preparation method comprises the following steps of: firstly mixing a macromolecular polymer and a polymer solvent according to mass ratio of (2-15):(85-98), and stirring a mixture at 20-60 DEG C for at least 2h to obtain a mixed solution with concentration of 2-15%; mixing soluble POSS and the obtained mixed solution according to the mass ratio of the POSS to the macromolecular polymer being (1-20):(80-99), stirring the mixture at 20-60 DEG C to fully dissolve the POSS to obtain the spinning solution; and arranging the spinning solution on an electrostatic spinning device and spinning to obtain the POSS-containing polymer composite fiber. The prepared POSS-containing polymer composite fiber has high specific surface area and remarkably improved heat resistance, can be widely applied to the fields of preparation of high-efficiency filter materials, antibacterial medical materials, carbon materials and the like.

Description

technical field [0001] The invention relates to the field of electrospinning of polymers, in particular to an electrospinning preparation method of composite fibers containing POSS polymers. Background technique [0002] In 1934, Formhals designed the first spinning device using polymer solution sprayed under a strong electric field; by the 1960s, electrospinning began to be applied to the textile industry for the production of various polymer fibers without spinning. In the 1990s, the research of Reneker et al. made electrospinning technology arouse people's widespread attention. The reason is that ultra-fine fibers with a diameter of submicron to nanometer can be obtained through electrospinning, which has the characteristics of large specific surface area and high porosity; Commercial application; Some macroscopic properties of fibers (special physical, chemical and biological affinity properties) enable them to be modified at the molecular level according to different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F6/48D01F6/92D01F6/52D01F6/94D01F6/44D01F6/54D01F6/50D01F2/28D01F8/00D01F1/10
Inventor 薛萌张献林永兴马磊吴钊峰田兴友
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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