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A kind of preparation method of poly(aryl ether ketone) and poly(aryl ether ketone)

A technology of aryl ether ketone and benzophenone, which is applied in the field of polymer materials and can solve problems such as dark colors and poor product quality

Active Publication Date: 2022-07-15
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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  • A kind of preparation method of poly(aryl ether ketone) and poly(aryl ether ketone)
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  • A kind of preparation method of poly(aryl ether ketone) and poly(aryl ether ketone)

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preparation example Construction

[0020] The present invention provides a 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 evenly under the action of a first solvent, 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 a reaction substrate, add the second solvent and carbonate in sequence at 150-160° C., and gradually increase the temperature for reaction to obtain poly(aryl ether ketone).

[0023] According to the present invention, firstly add benzophenone compound or diacid chloride compound, hydroxyl-containing compound, sodium borohydride and the first solvent in turn in the there-necked flask, slowly start and stir to 30-40rpm, after 5-10 minutes the solid All dissolved, speed up the stirring speed to 100-120rpm, stir for 10-15 minutes, thoroughly mix the reaction raw materials, heat the th...

Embodiment 1

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

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 the step 1, the consumption of the first solvent and the consumption of sodium borohydride change, as shown in the table 1 shows:

[0044] Table 1

[0045]

[0046]

[0047] From this, the influence table of orthogonal factors 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 influence on the premixing effect, and the influences are ranked as follows: the amount of sodium borohydride>the first solvent>the amount of solvent, so the optimal premixing conditions are: using acetone as For solvent, the ratio of the molar ratio of hydroquinone to sodium borohydride is 1:0.15, and the ratio of the molar mass (mol) of hydroquinone to the amount of solvent (L) is 1:1.

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Abstract

The invention provides a preparation method of poly(aryl ether ketone) and poly(aryl ether ketone), which belong to the technical field of polymer materials. In the method, benzophenone compounds or diacid chloride compounds, hydroxyl-containing compounds and sodium borohydride are uniformly mixed under the action of a first solvent, heated to 80-150° C. to remove the first solvent to obtain a premix; The obtained premix is ​​used as a reaction substrate, and the second solvent and carbonate are sequentially added at 150-160° C., and the temperature is gradually increased to react to obtain poly(aryl ether ketone). The poly(aryl ether ketone) color product obtained by this method has a higher grade. After the poly(aryl ether ketone) product is injected as a standard test sample, the colorimetric test is performed with a colorimeter, and the lightness index L* is measured to determine the color of the sample. Compared with lightness and darkness, poly(aryl ether ketone) has the characteristic of lightness index L*≥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 resistance and corrosion resistance. Physical and chemical properties such as high strength, high modulus, high fracture toughness and excellent dimensional stability. The typical representative of poly(aryl ether ketone) polymers is polyether ether ketone, which has a glass transition temperature (Tg) of 143 °C, a melting point (Tm) of 334 °C, and a maximum crystallinity of 48%. Generally 20% to 30%. Its density in the amorphous state is 1.265g / cm 3 , the density at the maximum crystallinity is 1.32g...

Claims

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Application Information

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Patent Type & Authority Patents(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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