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Method for preparing polyetherketoneketone (PEKK) membrane material

A technology of polyether ketone ketone and membrane materials, which is applied in the field of preparation of polyether ketone ketone (PEKK) membrane materials

Pending Publication Date: 2019-01-15
ZHANGJIAGANG XIANGCHENG MEDICAL MATERIAL SSCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention selects a single solvent NMP, the heating and dissolving rate is fast, and the PEKK film material is prepared through multiple heat treatments, and the preparation process is simple, and the preparation method has not been reported yet.

Method used

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  • Method for preparing polyetherketoneketone (PEKK) membrane material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Take 0.5g of PEKK (where TPC:IPC=5:5) powder and 10ml of NMP solvent in a three-necked flask, heat it to 125°C and magnetically stir it to dissolve completely, and obtain a concentration of 5% (w / v) lysate. The solution was spread on a clean glass plate, placed in an oven at 130°C for 2 hours, and then kept in a vacuum oven at 180°C for 20 hours. Take it out and place it in a muffle furnace at 350°C for 15 minutes for heat treatment to obtain a PEKK film.

Embodiment 2

[0019] Example 2: Take 0.5g of PEKK (where TPC:IPC=6:4) powder and 10ml of NMP solvent in a three-necked flask, heat it to 140°C and magnetically stir to dissolve it completely, and obtain a concentration of 5% (w / v) lysate. The solution was spread on a clean glass plate, placed in an oven at 130°C for 2 hours, and then kept in a vacuum oven at 180°C for 20 hours. Take it out and place it in a muffle furnace at 350°C for 15 minutes for heat treatment to obtain a PEKK film.

Embodiment 3

[0020] Example 3: Take 0.5g of PEKK (where TPC:IPC=7:3) powder and 10ml of NMP solvent in a three-necked flask, heat it to 160°C and magnetically stir to dissolve it completely, and obtain a concentration of 5% (w / v) lysate. The solution was spread on a clean glass plate, placed in an oven at 130°C for 2 hours, and then kept in a vacuum oven at 180°C for 20 hours. Take it out and place it in a muffle furnace at 360°C for 15 minutes for heat treatment to obtain a PEKK film.

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Abstract

The invention relates to a preparation method of a polyetherketoneketone (PEKK) membrane material, and belongs to the technical field of polymer materials, and the preparation method comprises the following steps: (a) dispersing synthesized PEKK powder in N-methylpyrrolidone (NMP), stirring at 100DEG C or above to dissolve quickly to obtain a solution; (b) spreading the solution on a clean glass plate, placing the glass plate in an oven at 100DEG C or higher to volatilize a solvent, and then removing solvent residue in a vacuum oven at 150DEG C or higher; and (c) performing heat treatment at 300DEG C or higher to obtain a PEKK membrane. The method only uses one common solvent NMP, the membrane forming process is simple, and the obtained PEKK membrane material has excellent mechanical properties.

Description

technical field [0001] The invention relates to a preparation method of a polyether ketone ketone (PEKK) membrane material, belonging to the technical field of polymer materials. Background technique [0002] Polyether ketone ketone is one of the special engineering plastic polyarylether ketone series. It is a new type of thermoplastic engineering plastic that has developed rapidly in recent years. There are rigid repeating units in the molecular structure of PEKK, which makes it have high crystallinity and excellent thermodynamic properties. , and its melting temperature (Tm) is 338-384°C (depending on the synthetic route). In addition, PEKK has excellent mechanical properties, radiation resistance, flame retardancy, solvent resistance and chemical corrosion resistance, etc. Insoluble in organic solvents and common acid-base solutions, except for a few strong acidic reagents such as concentrated sulfuric acid, trifluoroacetic acid, and dichloroacetic acid. Due to the ch...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L73/00
CPCC08J5/18C08J2373/00
Inventor 马忠实宣正伟袁飞
Owner ZHANGJIAGANG XIANGCHENG MEDICAL MATERIAL SSCI & TECH CO LTD
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