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thermoplastic molding composition

一种模制组合物、热塑性的技术，应用在模制品和半成品领域，能够解决注塑模具磨损增加等问题

Active Publication Date: 2018-09-25
LANXESS DEUTDCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of injection molding processes, there is also a significant increase in the wear of the injection mold

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example

[0149] Individual components a., b., c., and d. were processed at about 280° C. in a ZSK 26 Compounder twin-screw extruder from Coperion Wemer & Pfleiderer (Stuttgart, Germany) Mix in, drain as a strand into a water bath, cool until pelletizable and pelletize. The pellets were then dried to constant weight in a vacuum oven at 70°C.

[0150] These pellets were then given in an Arburg SG370-173732 injection molding machine at melting temperatures from 270°C to 300°C and at molding temperatures from 80°C to 100°C to give dumbbell samples (thickness 4mm according to ISO528) and dimensions 60mm· 40mm·2mm blocks. These blocks were then ground to a size of 12.7mm·12.7mm·2mm.

[0151] The mechanical properties of the products produced from the thermoplastic molding compositions of the invention were determined according to the ISO 527 tensile test.

[0152] Thermal conductivity is determined according to ISO 22007-4 on blocks of size 12.7mm·12.7mm·2mm.

[0153] All compositions sh...

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Abstract

The invention relates to thermoplastic molding compositions based on polyamides with inorganic fillers of triclinic aluminosilicate and with at least one heat stabilizer and also at least one additional substance, relating to thermoplastic Mixtures of molding compositions, relating to the production of these and also to electrically insulating, thermally conducting products produced therefrom, in particular moldings and semi-finished products.

Description

technical field [0001] The invention relates to mixtures of thermoplastic molding compositions based on polyamides with inorganic fillers of aluminum silicate in triclinic form and having at least one heat stabilizer and also at least one additional Substances, relating to the production of these and also to electrically insulating, heat-conducting products produced therefrom, in particular moldings and semi-finished products. Background technique [0002] Because thermoplastic polymers have good electrical insulating properties, they are used in many applications in the electrical industry. However, because of their low thermal conductivity, they also have an insulating effect, which is problematic for electrical components when relatively large amounts of heat are generated and must be dissipated. The electrical and thermal conductivity of thermoplastics can be varied widely by using additives: for example, the addition of graphite increases both electrical and thermal co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08K13/02C08K3/34C08K5/20C08K5/103
CPCC08L77/02C08K2201/014C08L2201/08C08L91/06C08K3/34C08K5/20C08K5/005C08L77/06C08K13/02
Inventor 托比亚斯·贝尼格豪斯德特勒夫·约阿希米理查德·魏德奥利弗·沃尔夫
Owner LANXESS DEUTDCHLAND GMBH