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Device and method for purifying high-temperature-resistant resin

A purification method and purification device technology are applied in the field of purification devices for high temperature resins, which can solve the problems of high operation risk, complex equipment and high cost, and achieve the effects of simple equipment structure, simple and convenient operation, and reduced raw material cost.

Inactive Publication Date: 2011-07-20
MIANYANG DONGFANG SPECIAL ENG PLASTIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a purification device for polymer materials, especially for the purification of high temperature resistant polymer resins, to solve the complex equipment, large energy consumption, high cost and operational risks in the prior art Major and other issues

Method used

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  • Device and method for purifying high-temperature-resistant resin
  • Device and method for purifying high-temperature-resistant resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A purification device for high-temperature-resistant polymers, characterized in that the heating tank 1 is connected to the washing tank 2 through a valve 8, the washing tank 2 is equipped with a drum 3, and the lower end of the washing liquid storage tank 4 is connected through a valve 7 Washing tank 2, its upper end is connected to the loam cake of heating tank 1 through pipeline 6, the upper end of washing liquid storage tank 4 is equipped with condenser 5, and the upper end of washing tank 2 has feeding port 10. Drum 3 is a stainless steel cylinder densely covered with small holes, and the drum is lined with filter cloth. The drum can be freely rotated in the forward or reverse direction through program control; the heating tank 1 and the washing tank 2 are equipped with heating devices. Wherein the washing tank body 2 also has a vacuum device.

[0036] A method for purifying high-temperature-resistant polymers, comprising the steps of:

[0037] a) After the washin...

Embodiment 2

[0047] In order to measure the purification effect of the device of the present invention, its specific purification method is now operated, and its measurement method is Inductively Coupled Plasma Atomic Emission Spectroscopy (ICPAES) with ppm as the unit.

[0048] (1) Purification of polyether ether ketone (PEEK) resin prepared with sulfolane as solvent

[0049] Take 20kg of the above polyether ether ketone and 200kg of deionized water, put them into a washing tank, wash at 80°C, and after 40 minutes each time, centrifuge to remove most of the water, then dry the material at 130°C under vacuum to constant weight , Determination of solvent and impurity ion content in polyether ether ketone, wherein the solvent content is measured by gas chromatography analyzer, and the solvent and impurity ion content of the polymer after each washing and drying are measured as shown in Table 1.

[0050] Table 1

[0051] residue content

before processing

Process 1 time

...

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Abstract

The invention discloses a device for purifying a high-temperature-resistant polymer. A heating tank body is connected with a washing tank body through a first valve; a revolving drum is arranged in the washing tank body; the lower end of a washing liquid storage tank is connected with the washing tank body through a second valve and the upper end is connected with an upper cover of the heating tank body through a pipeline and provided with a condenser; and the upper end of the washing tank body is provided with a feeding hole. A method for purifying the high-temperature-resistant polymer comprises the following steps of: a, gasifying a washing solvent in the heating tank body by heating, introducing steam into the condenser through a pipeline for condensing into a pure solvent and keepingthe pure solvent in the washing liquid storage tank for later use; b, smashing the polymer containing the solvent and / or impurities, making the smashed polymer pass through a 20-mesh screen and putting the smashed polymer into the revolving drum from the feeding hole; c, opening the second valve, injecting a certain quantity of solvent into the washing tank body, opening a washing tank heating device, setting to a preset temperature, starting the revolving drum, rotating the revolving drum positively and negatively under program control and mixing the washed polymer for a certain period of time; d, opening the first valve, rotating the revolving drum at a high speed under program control and making the washed solvent leak from the revolving drum and flow back into the heating tank body through the washing tank body under the action of centrifugal force; e, repeating steps a-d in sequence until reaching predetermined times; f, starting the heating device and a vacuumizing device of a washing tank 2, raising the internal temperature of the tank body to 100-300 DEG C for drying and rotating the revolving drum under program control to ensure that a material is uniformly dried.

Description

technical field [0001] The invention relates to a purification device for high temperature resistant resin, and also relates to a purification method for high temperature resistant resin. Background technique [0002] In the process of making resin products, if there are various inorganic or organic impurities mixed, it will reduce the product performance, increase the defective rate and affect the use, so it needs to be removed in the general preparation process to obtain various good Material. For example, polyetheretherketone / polyethersulfone high-temperature resistant materials are often used in electronic and electrical components, which require high purity. They are generally prepared by solution polymerization, using diphenyl sulfone as a solvent, alkali metal carbonate Or sodium hydroxide is used as a catalyst, and finally the solvent and alkali metal salt are removed from the product. Otherwise, the presence of inorganic ions will reduce the electrical insulation ...

Claims

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Application Information

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IPC IPC(8): C08G65/46C08G75/23
Inventor 代惊奇赵东辉曾祥斌曹民饶先花
Owner MIANYANG DONGFANG SPECIAL ENG PLASTIC
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