Untersuchungen zur Haltbarkeit von Formen aus carbonfaserverstärkten Kunststoffen (CFK): Ein Vergleich der Matrixsysteme Epoxid und BMI

Philipp Kammerhofer; Swen Zaremba; Klaus Drechsler

doi:10.3139/O999.01022018

Untersuchungen zur Haltbarkeit von Formen aus carbonfaserverstärkten Kunststoffen (CFK): Ein Vergleich der Matrixsysteme Epoxid und BMI

Translated title of the contribution: Investigation on the durability of molds made from carbon fiber reinforced plastics (CFRP): A comparison of epoxy and BMI matrix systems

Philipp Kammerhofer, Swen Zaremba, Klaus Drechsler

Chair of Carbon Composites

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

Abstract

The main advantage of CFRP molds is the match of thermal expansion between mold and part. A drawback of this technology is the limited durability due to decreasing vacuum integrity. Goal of this experimental study is to investigate the relation of the degradation of the matrix and the resulting increasing air permeability of the laminate and cyclic thermal loading. For epoxy based laminates the results show very little ageing effects up to a temperature of 150 °C, whereas a severe decrease of characteristic values from 250 cycles at 180 °C is observed. Bismaleimide (BMI) based coupons show very little effects of ageing at 180°C after 500 cycles.

Translated title of the contribution	Investigation on the durability of molds made from carbon fiber reinforced plastics (CFRP): A comparison of epoxy and BMI matrix systems
Original language	German
Pages (from-to)	118-145
Number of pages	28
Journal	Zeitschrift Kunststofftechnik/Journal of Plastics Technology
Volume	2018
Issue number	2
DOIs	https://doi.org/10.3139/O999.01022018
State	Published - 2018

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title = "Untersuchungen zur Haltbarkeit von Formen aus carbonfaserverst{\"a}rkten Kunststoffen (CFK): Ein Vergleich der Matrixsysteme Epoxid und BMI",

abstract = "The main advantage of CFRP molds is the match of thermal expansion between mold and part. A drawback of this technology is the limited durability due to decreasing vacuum integrity. Goal of this experimental study is to investigate the relation of the degradation of the matrix and the resulting increasing air permeability of the laminate and cyclic thermal loading. For epoxy based laminates the results show very little ageing effects up to a temperature of 150 °C, whereas a severe decrease of characteristic values from 250 cycles at 180 °C is observed. Bismaleimide (BMI) based coupons show very little effects of ageing at 180°C after 500 cycles.",

keywords = "CFRP moulds, Durability, Gas leakage, Matrix cracking, Thermal ageing",

author = "Philipp Kammerhofer and Swen Zaremba and Klaus Drechsler",

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AU - Zaremba, Swen

AU - Drechsler, Klaus

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N2 - The main advantage of CFRP molds is the match of thermal expansion between mold and part. A drawback of this technology is the limited durability due to decreasing vacuum integrity. Goal of this experimental study is to investigate the relation of the degradation of the matrix and the resulting increasing air permeability of the laminate and cyclic thermal loading. For epoxy based laminates the results show very little ageing effects up to a temperature of 150 °C, whereas a severe decrease of characteristic values from 250 cycles at 180 °C is observed. Bismaleimide (BMI) based coupons show very little effects of ageing at 180°C after 500 cycles.

AB - The main advantage of CFRP molds is the match of thermal expansion between mold and part. A drawback of this technology is the limited durability due to decreasing vacuum integrity. Goal of this experimental study is to investigate the relation of the degradation of the matrix and the resulting increasing air permeability of the laminate and cyclic thermal loading. For epoxy based laminates the results show very little ageing effects up to a temperature of 150 °C, whereas a severe decrease of characteristic values from 250 cycles at 180 °C is observed. Bismaleimide (BMI) based coupons show very little effects of ageing at 180°C after 500 cycles.

KW - CFRP moulds

KW - Durability

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Untersuchungen zur Haltbarkeit von Formen aus carbonfaserverstärkten Kunststoffen (CFK): Ein Vergleich der Matrixsysteme Epoxid und BMI

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