Preparation method of poly (aryl ether ketone) and poly (aryl ether ketone)

A technology of aryl ether ketone and benzophenone, applied in the field of polymer materials, can solve the problems of dark color, poor product quality and the like

Active Publication Date: 2021-10-22
JILIN ZHONGYAN HIGH PERFORMANCE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of preparation method of poly(aryl ether ketone) and poly(aryl ether ketone) in order to solve the product that the preparation method of existing poly(aryl ether ketone) obtains, and color is dark, the problem of poor product quality. Aryl ether ketone)

Method used

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  • Preparation method of poly (aryl ether ketone) and poly (aryl ether ketone)
  • Preparation method of poly (aryl ether ketone) and poly (aryl ether ketone)
  • Preparation method of poly (aryl ether ketone) and poly (aryl ether ketone)

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preparation example Construction

[0020] The invention provides a kind of preparation method of poly(aryl ether ketone), the method comprises:

[0021] Step 1: Mix benzophenone compounds or diacid chloride compounds, hydroxyl-containing compounds and sodium borohydride uniformly under the action of the first solvent, and heat to 80-150° C. to remove the first solvent to obtain a premix;

[0022] Step 2: Using the premix obtained in Step 1 as the reaction substrate, adding the second solvent and carbonate in sequence at 150-160° C., and gradually raising the temperature for reaction to obtain poly(aryl ether ketone).

[0023] According to the present invention, first add benzophenone compounds or diacid chloride compounds, hydroxyl-containing compounds, sodium borohydride and the first solvent in the three-necked flask in sequence, start slowly and stir to 30-40rpm, and after 5-10 minutes, the solids Dissolve everything, increase the stirring speed to 100-120rpm, stir for 10-15 minutes, mix the reaction materia...

Embodiment 1

[0036] Take a 3000ml three-necked bottle and place it in a heating mantle, insert a metal stirring paddle into the middle port of the three-necked bottle, weigh 218.2g (1mol) of 4,4'-difluorobenzophenone into the three-necked bottle from one port, and weigh 110.1 g (1mol) of hydroquinone was added into the three-necked bottle from the same side port, and 1.892g sodium borohydride (0.05mol) was added into the three-necked bottle from the same side port, and 800ml of acetone was measured, Add it into the three-necked flask, start stirring slowly to 30rpm, and after 5 minutes all the solids are dissolved, increase the stirring speed to 100rpm, and stir for 10 minutes, and the 4,4'-difluorobenzophenone and hydroquinone are thoroughly mixed. Seal the feeding edge of the three-necked bottle, connect the other side (collecting the edge) to a straight condenser tube and a collecting bottle, keep the stirring speed at 100 rpm, heat the three-necked bottle to 80°C, the acetone in the thr...

Embodiment 2

[0043] Prepare poly(aryl ether ketone) a2-a9 according to the steps of Example 1, the difference is that the type of the first solvent in step 1, the amount of the first solvent and the amount of sodium borohydride are changed, as shown in the table 1 shows:

[0044] Table 1

[0045]

[0046]

[0047] From this, the orthogonal factor influence table can be obtained, as shown in Table 2

[0048] Table 2

[0049]

[0050] As can be seen from Tables 1 and 2, the amount of sodium borohydride has the greatest impact on the premixing effect, and the order of impact is: the amount of sodium borohydride>the first solvent>the amount of solvent, so the best premixing condition is: using acetone as For solvent, the molar ratio of hydroquinone to sodium borohydride is 1:0.15, and the ratio of molar mass (mol) of hydroquinone to solvent (L) is 1:1.

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Abstract

The invention provides a preparation method of poly (aryl ether ketone) and the poly (aryl ether ketone), and belongs to the technical field of high polymer materials. The method comprises the following steps: uniformly mixing a benzophenone compound or a diacyl chloride compound, a hydroxyl-containing compound and sodium borohydride under the action of a first solvent, heating to 80-150 DEG C, and removing the first solvent to obtain a premix; and taking the obtained premix as a reaction substrate, sequentially adding a second solvent and carbonate at 150-160 DEG C, and gradually heating for reaction to obtain the poly (aryl ether ketone). The grade of the poly (aryl ether ketone) color product obtained by the method is improved, after the poly (aryl ether ketone) product is injected into a standard test sample plate, a colorimeter is used for carrying out chromaticity test, the measured lightness index L * is subjected to sample color lightness comparison, and the poly (aryl ether ketone) has the characteristic that the lightness index L * is greater than or equal to 70.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a preparation method of poly(aryl ether ketone) and poly(aryl ether ketone). Background technique [0002] Poly(aryl ether ketone) polymer is an aromatic linear polymer material. It is a new type of semi-crystalline aromatic thermoplastic engineering plastic successfully researched and developed in the late 1970s. It has high temperature resistance, chemical corrosion resistance, and Physical and chemical properties such as high strength, high modulus, high fracture toughness and excellent dimensional stability. Poly(aryl ether ketone) polymer is a typical representative polymer polyether ether ketone, its glass transition temperature (Tg) is 143 ° C, melting point (Tm) is 334 ° C, and the maximum crystallinity that can be achieved is 48%. Generally 20% to 30%. Its density in the amorphous state is 1.265g / cm 3 , the density at the maximum crystallinity is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40
CPCC08G65/4012C08G65/4093
Inventor 谢怀杰平仕衡
Owner JILIN ZHONGYAN HIGH PERFORMANCE PLASTIC
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