Ex-situ concept for toughening the RTMable BMI matrix composites. II. Improving the compression after impact

Qunfeng Cheng; Zhengping Fang; Xiao Su Yi; Xuefeng An; Bangming Tang; Yahong Xu

doi:10.1002/app.27864

Ex-situ concept for toughening the RTMable BMI matrix composites. II. Improving the compression after impact

Qunfeng Cheng
, Zhengping Fang
, Xiao Su Yi^*
, Xuefeng An
, Bangming Tang
, Yahong Xu

^*Corresponding author for this work

Research output: Journal Publication › Article › peer-review

25 Citations (Scopus)

Abstract

The compression after impact (CAI) properties of bismaleimide (BMI) matrix composites manufactured by resin transfer molding (RTM) were significantly improved by ex-situ RTM technique. The thermoplastic polyetherketone with a functional group of Phenolphthalein (PAEK) was used as toughener. The optical microscopy images of the cross-section of post-impact specimens revealed that the delamination resistance of specimens toughened through ex-situ RTM technique was dramatically improved. The energy absorption mechanism of composites toughened through ex-situ RTM technique was changed from the delamination to fiber fracture, which contributed to the improvement in CAI. The particle microstructure in interlaminar region of composites toughened through ex-situ RTM technique revealed that a reaction-induced phase decomposition and inversion happened in the interlaminar region. The BMI particles were surrounded with the PAEK phase, which can significantly improve the delamination resistance of composites. The in-plane static mechanical properties of G827/BMI composite toughened through ex-situ RTM technique were very well kept.

Original language	English
Pages (from-to)	2211-2217
Number of pages	7
Journal	Journal of Applied Polymer Science
Volume	108
Issue number	4
DOIs	https://doi.org/10.1002/app.27864
Publication status	Published - 15 May 2008
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Free Keywords

Composites
Compression after impact
Ex-situ RTM technique
Mechanical properties
Microstructure

ASJC Scopus subject areas

General Chemistry
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.27864

Cite this

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title = "Ex-situ concept for toughening the RTMable BMI matrix composites. II. Improving the compression after impact",

abstract = "The compression after impact (CAI) properties of bismaleimide (BMI) matrix composites manufactured by resin transfer molding (RTM) were significantly improved by ex-situ RTM technique. The thermoplastic polyetherketone with a functional group of Phenolphthalein (PAEK) was used as toughener. The optical microscopy images of the cross-section of post-impact specimens revealed that the delamination resistance of specimens toughened through ex-situ RTM technique was dramatically improved. The energy absorption mechanism of composites toughened through ex-situ RTM technique was changed from the delamination to fiber fracture, which contributed to the improvement in CAI. The particle microstructure in interlaminar region of composites toughened through ex-situ RTM technique revealed that a reaction-induced phase decomposition and inversion happened in the interlaminar region. The BMI particles were surrounded with the PAEK phase, which can significantly improve the delamination resistance of composites. The in-plane static mechanical properties of G827/BMI composite toughened through ex-situ RTM technique were very well kept.",

keywords = "Composites, Compression after impact, Ex-situ RTM technique, Mechanical properties, Microstructure",

author = "Qunfeng Cheng and Zhengping Fang and Yi, \{Xiao Su\} and Xuefeng An and Bangming Tang and Yahong Xu",

year = "2008",

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T1 - Ex-situ concept for toughening the RTMable BMI matrix composites. II. Improving the compression after impact

AU - Cheng, Qunfeng

AU - Fang, Zhengping

AU - Yi, Xiao Su

AU - An, Xuefeng

AU - Tang, Bangming

AU - Xu, Yahong

PY - 2008/5/15

Y1 - 2008/5/15

N2 - The compression after impact (CAI) properties of bismaleimide (BMI) matrix composites manufactured by resin transfer molding (RTM) were significantly improved by ex-situ RTM technique. The thermoplastic polyetherketone with a functional group of Phenolphthalein (PAEK) was used as toughener. The optical microscopy images of the cross-section of post-impact specimens revealed that the delamination resistance of specimens toughened through ex-situ RTM technique was dramatically improved. The energy absorption mechanism of composites toughened through ex-situ RTM technique was changed from the delamination to fiber fracture, which contributed to the improvement in CAI. The particle microstructure in interlaminar region of composites toughened through ex-situ RTM technique revealed that a reaction-induced phase decomposition and inversion happened in the interlaminar region. The BMI particles were surrounded with the PAEK phase, which can significantly improve the delamination resistance of composites. The in-plane static mechanical properties of G827/BMI composite toughened through ex-situ RTM technique were very well kept.

AB - The compression after impact (CAI) properties of bismaleimide (BMI) matrix composites manufactured by resin transfer molding (RTM) were significantly improved by ex-situ RTM technique. The thermoplastic polyetherketone with a functional group of Phenolphthalein (PAEK) was used as toughener. The optical microscopy images of the cross-section of post-impact specimens revealed that the delamination resistance of specimens toughened through ex-situ RTM technique was dramatically improved. The energy absorption mechanism of composites toughened through ex-situ RTM technique was changed from the delamination to fiber fracture, which contributed to the improvement in CAI. The particle microstructure in interlaminar region of composites toughened through ex-situ RTM technique revealed that a reaction-induced phase decomposition and inversion happened in the interlaminar region. The BMI particles were surrounded with the PAEK phase, which can significantly improve the delamination resistance of composites. The in-plane static mechanical properties of G827/BMI composite toughened through ex-situ RTM technique were very well kept.

KW - Composites

KW - Compression after impact

KW - Ex-situ RTM technique

KW - Mechanical properties

KW - Microstructure

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U2 - 10.1002/app.27864

DO - 10.1002/app.27864

M3 - Article

AN - SCOPUS:42949172564

SN - 0021-8995

VL - 108

SP - 2211

EP - 2217

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 4

ER -

Ex-situ concept for toughening the RTMable BMI matrix composites. II. Improving the compression after impact

Abstract

UN SDGs

Free Keywords

ASJC Scopus subject areas

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