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Polyether ketone ketone continuous production technology

A polyetherketone ketone and production process technology, applied in the field of polymer special engineering plastics, can solve the problems of inability to realize large-scale industrialized continuous production, short production cycle, low production cost, etc., achieve short production cycle, increase output, increase The effect of utilization efficiency

Active Publication Date: 2017-06-06
SHANDONG KAISHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a continuous production process of polyether ketone ketone, which solves the problem that the traditional process cannot realize large-scale industrial continuous production, and has the characteristics of low production cost, short production cycle and continuous production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The continuous production process of polyether ketone ketone comprises the following steps:

[0035] (1) 42.63kg of terephthaloyl chloride, 18.27kg of isophthaloyl chloride and 51.06kg of diphenyl ether are added to the mixing kettle, and then 100kg of dichloromethane is added for dissolving to obtain a mixed solution;

[0036] (2) Add 200kg of dichloromethane into the reactor, cool down to -15°C, then add 210kg of anhydrous aluminum chloride and 50kg of dimethylformamide to the reactor in batches for reaction to obtain a reaction solution;

[0037] (3) Add the mixed solution to the reaction solution, react at -15°C for 1h, and continue to react for 1h after heating up to 30°C to obtain a prepolymer;

[0038] (4) Add the prepolymer into the twin-screw reactor, control the reaction temperature at 40°C, and control the extrusion time at 30 minutes. After extrusion, the polymer is obtained, and the polymer is pulverized at the head of the twin-screw reactor. , while spray...

Embodiment 2

[0041] The continuous production process of polyether ketone ketone comprises the following steps:

[0042] (1) 36.54kg of terephthaloyl chloride, 24.36kg of isophthaloyl chloride and 51.06kg of diphenyl ether are added to the mixing kettle, and then 100kg of dichloromethane with a water content of 10-100ppm is added for dissolution to obtain a mixed solution ;

[0043] (2) Add 200kg of dichloromethane into the reactor, cool down to -15°C, then add 210kg of anhydrous aluminum chloride and 50kg of dimethylformamide to the reactor in batches for reaction to obtain a reaction solution;

[0044] (3) Add the mixed solution to the reaction solution, react at -15°C for 1h, and continue to react for 1h after heating up to 30°C to obtain a prepolymer;

[0045] (4) Add the prepolymer into the twin-screw reactor, control the reaction temperature at 40°C, and control the extrusion time at 30 minutes. After extrusion, the polymer is obtained, and the polymer is pulverized at the head of the...

Embodiment 3

[0048] The continuous production process of polyether ketone ketone comprises the following steps:

[0049] (1) 30.45kg of terephthaloyl chloride, 30.45kg of isophthaloyl chloride and 51.06kg of diphenyl ether are added to the mixing kettle, and then 100kg of dichloromethane with a water content of 10-100ppm is added for dissolution to obtain a mixed solution ;

[0050] (2) Add 200kg of dichloromethane into the reactor, cool down to -15°C, then add 210kg of anhydrous aluminum chloride and 50kg of dimethylformamide to the reactor in batches for reaction to obtain a reaction solution;

[0051] (3) Add the mixed solution to the reaction solution, react at -15°C for 1h, and continue to react for 1h after heating up to 30°C to obtain a prepolymer;

[0052] (4) Add the prepolymer into the twin-screw reactor, control the reaction temperature at 40°C, and control the extrusion time at 30 minutes. After extrusion, the polymer is obtained, and the polymer is pulverized at the head of t...

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Abstract

The invention relates to a polyether ketone ketone continuous production technology and belongs to the technical field of macromolecule special engineering plastics. The technology comprises the steps of adding paraphthaloyl chloride, isophthaloyl dichloride and diphenyl ether into a mixing kettle; adding a polar aprotic solvent to dissolve; adding the polar aprotic organic solvent into the mixing kettle at the same time; then adding lewis acid and lewis base to react after cooling to obtain a reaction solution; adding a mixed solution into the reaction solution to react to obtain a prepolymer; adding the prepolymer into a double-screw reactor to be extruded out to obtain a polymer; smashing the polymer at a machine head of the double-screw reactor; spraying a hydrochloric acid solution at the same time; filtering, washing with deionized water and drying to obtain the polyether ketone ketone. A strong shearing effect of the double-screw reactor is utilized to process high-viscosity materials, so that reaction time is reduced. The production technology disclosed by the invention can achieve continuous production, has a short production period and greatly improves utilization rate of the reaction kettle.

Description

technical field [0001] The invention relates to a continuous production process of polyether ketone ketone, which belongs to the technical field of polymer special engineering plastics. Background technique [0002] Polyether ketone ketone resin has a macromolecular linear rigid structure composed of benzene rings, ether bonds and ketone groups, and its molecular structure is as follows: [0003] [0004] Polyether ketone ketone resin is a special engineering plastic with excellent performance, which belongs to a kind of polyarylether ketone. In its molecular structure, the chemical structure of phenylene ring ether bond and ketone group arranged in order with each other endows the molecule with highly stable chemical bond characteristics. It has excellent mechanical properties, radiation resistance, high temperature resistance, chemical corrosion resistance, good electrical insulation and flame retardancy, and can be processed by extrusion, injection molding, molding and...

Claims

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Application Information

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IPC IPC(8): C08G65/40
CPCC08G65/40
Inventor 李光辉孙庆民贾亚非黄桂青马团芝薛居强张聪聪王军张际亮王荣海张泰铭
Owner SHANDONG KAISHENG NEW MATERIALS
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