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Polyetheretherketone steel bar and preparation method and uses thereof

A technology of polyether ether ketone and polyetherether ketone resin, which is applied in the field of rod-shaped special high-temperature-resistant thermoplastic engineering plastics and its preparation, can solve the problems of high melt viscosity, slow crystallization speed, and difficult processing, and overcome noise big effect

Inactive Publication Date: 2008-04-09
南京金紫鑫工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that existing PEEK rods have too high melt viscosity, slow crystallization speed and difficult processing of PEEK rods after processing because of their good adhesion with metals. A new polyether ether ketone rod is proposed, and the preparation method and application of the rod are given at the same time

Method used

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  • Polyetheretherketone steel bar and preparation method and uses thereof
  • Polyetheretherketone steel bar and preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]First will get PEEK resin 2940g, lubricant graphite 60g, nucleating agent-kaolin 3g and filler silicon carbide whisker 3g join in the two-stage vacuum exhaust single-screw extruder (as shown in Figure 1), control described The extrusion temperature of the double-stage vacuum-exhausted single-screw extruder is 350-380°C, so that they are first plasticized in the upper-stage screw to obtain molten materials. After vacuum exhaust, they are sent to the lower-stage screw. Extrude through the extruder head (see Figure 2) under a working pressure of 8 Pa, and then undergo final shaping, cooling, and solidification (as shown in Figure 3) to obtain polyether ether ketone rods with a diameter of 20-80 mm. The bar can be used to make engine inner covers, automotive bearings, gaskets, seals, clutches, gear ring parts, pump bodies or valve parts.

Embodiment 2

[0041] First will get PEEK resin 2025g, lubricant molybdenum disulfide 60g, nucleating agent silicon dioxide 15g, filler glass fiber 900g join in the two-stage vacuum exhaust single-screw extruder (as shown in Figure 1), control described The extrusion temperature of the double-stage vacuum exhaust single-screw extruder is 350-380°C, so that they are first plasticized in the upper-stage screw to obtain molten materials, and then sent to the lower-stage screw after vacuum exhaust. Extrude through the extruder head (as shown in Figure 2) under a working pressure of 9 Pa, and then finalize, cool and solidify (as shown in Figure 3) to obtain polyether ether ketone rods with a diameter of 20-80 mm. The bar can be used to make engine inner covers, automotive bearings, gaskets, seals, clutches, gear ring parts, pump bodies or valve parts.

Embodiment 3

[0043] First will get PEEK resin 1725g, lubricant graphite 60g, nucleating agent kaolin 15g, filler carbon fiber 1200g, join in the two-stage vacuum exhaust single-screw extruder (as shown in Figure 1), control described two-stage vacuum The extrusion temperature of the vented single-screw extruder is 350-380°C, so that they are firstly plasticized in the upper-stage screw to obtain molten materials. After being vacuum-exhausted, they are sent to the lower-stage screw. After being extruded through the extrusion head (as shown in Figure 2), it is finally shaped, cooled and solidified (as shown in Figure 3) to obtain a polyether ether ketone rod with a diameter of 20-80 mm. The bar can be used to make engine inner covers, automotive bearings, gaskets, seals, clutches, gear ring parts, pump bodies or valve parts.

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Abstract

The invention discloses a novel polyether-ether-ketone (peek) bar which is designed for solving the problems of slow crystallization speed caused by too large viscosity during processing and being too difficult to be processed caused by good metal cohesiveness after the forming by processing existing in a present PEEK bar. The invention comprises the following components according to weight proportion: 55.5 parts to 100 parts of peek resin, 2 parts to 4 parts of lubricant, 0.05 part to 0.5 part of nucleating agent and 0.05 part to 43 parts of filler. The invention also discloses the preparation method and use of the bar and has the advantages of fast molding, good processing performance and wide use.

Description

technical field [0001] The invention relates to a rod-shaped special high-temperature-resistant thermoplastic engineering plastic developed with polyetheretherketone (PEEK) resin as the main raw material and its preparation method and application, specifically a polyether ether ketone rod and its preparation method and uses. Background technique [0002] Polyetheretherketone (PEEK) is a special high-temperature-resistant thermoplastic engineering plastic first successfully developed by the British ICI company in the early 1980s. It has the characteristics of high temperature resistance, radiation resistance, chemical resistance, wear resistance, and flame retardancy. Become a key raw material in many high-tech fields. At present, in addition to ICI, many companies such as BASF of Germany and DuPont of the United States have successively developed and produced PEEK. At present, the main PEEK production company in the world is Victrex of the United Kingdom, which is mainly us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/00C08K7/14C08J5/00B29C47/38B29L31/04B29L31/26B29C48/06B29C48/395
CPCC08G2650/40B29C47/12C08L71/00B29C48/06
Inventor 龙云正王德禧顾刘谦胡泊赵德健
Owner 南京金紫鑫工程塑料有限公司
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