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A kind of antistatic peek resin material and preparation method thereof

A resin material and anti-static technology, applied in the field of resin materials, can solve the problems of material toughness and low carbon fiber agglomeration, carbon black surface modification loses its effect, carbon fiber distribution is uneven, etc., and achieves good elongation at break and antistatic performance , excellent elongation at break and antistatic performance, and the effect of improving lipophilicity and dispersibility

Active Publication Date: 2020-09-29
ZHEJIANG DEQING CONCEPTFE PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned PEEK resin material also has the following defects: (1) carbon nanotubes are modified with high-sulfonated PEEK, but the thermal stability of high-sulfonated PEEK is low, and the weight loss at 400 ° C can reach 35%, while PEEK The processing temperature of PEEK is usually between 370-390°C. Highly sulfonated PEEK will be decomposed during PEEK processing, making it useless for the surface modification of carbon black; (2) Chopped carbon fibers need to be processed at 500°C It takes 6-8 hours to achieve surface modification, the modification conditions are relatively harsh, and the requirements for equipment are relatively high; (3) The elongation at break of the finally obtained PEEK resin material is only 8.4-11.7%, and the low toughness of the material indicates the agglomeration of carbon fibers Not completely resolved, the distribution of carbon fibers in the material is still uneven

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of preparation method of antistatic PEEK resin material of the present embodiment comprises the following steps:

[0037] (1) prepare modified carbon black;

[0038] Dry the carbon black at 100-110°C for more than 25 hours, mix it with N-(benzocyclobuten-4-yl)maleimide at a mass ratio of 100:0.01 after cooling, and put it in a high-speed mixer After uniform dispersion, transfer to 150°C reactor for Diels-Alder reaction for 7 hours to obtain modified carbon black.

[0039] (2) Take 70 parts of PEEK and 30 parts of modified carbon black, mix them evenly in a high-speed mixer, and then place them in an oven at 100°C to remove water. After they are completely dry, cool them down for later use;

[0040] (3) Transfer the cooled mixed material into an injection molding machine, and inject it into rods at 370-390°C.

Embodiment 2

[0042] A kind of preparation method of antistatic PEEK resin material of the present embodiment comprises the following steps:

[0043] (1) prepare modified carbon black;

[0044] Dry the carbon black at 100-110°C for more than 25 hours, mix it with N-(benzocyclobuten-4-yl)maleimide at a mass ratio of 100:3 after cooling, and put it in a high-speed mixer After uniform dispersion, the carbon black was transferred to a 170°C reactor for Diels-Alder reaction for 4 hours to obtain modified carbon black.

[0045] (2) Take 80 parts of PEEK and 20 parts of modified carbon black, mix them evenly in a high-speed mixer, and then place them in an oven at 150°C to remove water. After they are completely dry, cool them down for later use;

[0046] (3) Transfer the cooled mixed material into an injection molding machine, and inject it into rods at 370-390°C.

Embodiment 3

[0048] A kind of preparation method of antistatic PEEK resin material of the present embodiment comprises the following steps:

[0049] (1) prepare modified carbon black;

[0050] Dry the carbon black at 100-110°C for more than 25 hours, mix it with N-(benzocyclobuten-4-yl)maleimide at a mass ratio of 100:5 after cooling, and put it in a high-speed mixer After uniform dispersion, the carbon black was transferred to a 170°C reactor for Diels-Alder reaction for 4 hours to obtain modified carbon black.

[0051] (2) Take 80 parts of PEEK and 20 parts of modified carbon black, mix them evenly in a high-speed mixer, and then place them in an oven at 150°C to remove water. After they are completely dry, cool them down for later use;

[0052] (3) Transfer the cooled mixed material into an injection molding machine, and inject it into rods at 370-390°C.

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Abstract

The invention discloses an anti-static PEEK resin material and a preparation method thereof. The method comprises the steps that the anti-static PEEK resin material is prepared from, by mass, 70-90 parts of PEEK and 10-30 parts of modified carbon black, and modified carbon black is obtained in the mode that carbon black is subjected to surface treatment through N-( benzocyclobutene-4-radical) maleimide or / and and N-phenylmaleimide. According to the anti-static PEEK resin material, N-( benzocyclobutene-4-radical) maleimide or / and N-phenylmaleimide is / are adopted for conducting surfacing treatment on carbon black, the lipophilicity and dispersibility of carbon black are improved so that carbon black can be evenly dispersed in PEEK, and the PEEK resin material has a high breaking elongation rate and surface resistance rate; benzocyclobutene radicals have excellent heat stability, the decomposition temperature of the modified carbon black reaches above 450 DEG C, and thermal decompositioncannot occur at the PEEK processing temperature of 370-390 DEG C.

Description

technical field [0001] The invention belongs to the field of resin materials, and in particular relates to an antistatic PEEK resin material and a preparation method thereof. Background technique [0002] Polyether ether ketone, the English name polyetheretherketone (referred to as PEEK), is a linear aromatic polymer compound containing chain links in the main molecular chain. PEEK resin is a special engineering plastic with excellent performance. Compared with other special engineering plastics, it has more significant advantages, such as high temperature resistance of 260°C, excellent mechanical properties, good self-lubrication, chemical corrosion resistance, flame retardancy, Peel resistance, abrasion resistance, strong nitric acid, concentrated sulfuric acid resistance, radiation resistance, super mechanical properties, PEEK is widely used in aerospace, automobile manufacturing, electrical and electronic, medical and food processing and other fields. [0003] PEEK resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/16C08K9/04C08K3/04
CPCC08K3/04C08K9/04C08K2201/017C08L61/16
Inventor 邱剑锷邓赛明吴晓明
Owner ZHEJIANG DEQING CONCEPTFE PLASTIC PROD