Mechanical properties and morphology of LCP/ABS blends compatibilized with a styrene-maleic anhydride copolymer

W. B. Xie; K. C. Tam; C. Y. Yue; Y. C. Lam; L. Li; X. Hu

doi:10.1002/pi.1123

Mechanical properties and morphology of LCP/ABS blends compatibilized with a styrene-maleic anhydride copolymer

W. B. Xie, K. C. Tam^*, C. Y. Yue, Y. C. Lam, L. Li, X. Hu

^*Corresponding author for this work

Nanyang Technological University

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

8 Citations (Scopus)

Abstract

A co-polyester liquid crystalline polymer (LCP) was melt blended with an acrylo- nitrile-butadiene-styrene copolymer (ABS). LCP fibrils are formed and a distinct skin/core morphology is observed in the injection moulded samples. At higher LCP concentration (50 wt%), phase inversion occurs, where the dispersed LCP phase becomes a co-continuous phase. While the tensile strength and Young's modulus remain unchanged with increasing LCP content up to 30 wt% LCP, a significant enhancement of the modulus at 50 wt% LCP is observed due to the formation of co-continuous morphology. The blend modulus is lower than the values predicted by the rule of mixtures, suggesting a poor interface between the LCP droplets and ABS matrix. A copolymer of styrene and maleic anhydride (SMA) was added in the LCP/ABS blends during melt blending. It is observed that SMA has a compatibilizing effect on the blend system and an optimum SMA content exists for mechanical properties enhancement. SMA improves the interfacial adhesion, whereas excess of SMA reduces the LCP fibrillation.

Original language	English
Pages (from-to)	733-739
Number of pages	7
Journal	Polymer International
Volume	52
Issue number	5
DOIs	https://doi.org/10.1002/pi.1123
Publication status	Published - May 2003
Externally published	Yes

ASJC Scopus Subject Areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

Keywords

ABS
Blend
Compatibilization
Liquid crystalline polymer

Access to Document

10.1002/pi.1123

Cite this

@article{4c07e911ee804b1fa511d709a8b42a72,

title = "Mechanical properties and morphology of LCP/ABS blends compatibilized with a styrene-maleic anhydride copolymer",

abstract = "A co-polyester liquid crystalline polymer (LCP) was melt blended with an acrylo- nitrile-butadiene-styrene copolymer (ABS). LCP fibrils are formed and a distinct skin/core morphology is observed in the injection moulded samples. At higher LCP concentration (50 wt%), phase inversion occurs, where the dispersed LCP phase becomes a co-continuous phase. While the tensile strength and Young's modulus remain unchanged with increasing LCP content up to 30 wt% LCP, a significant enhancement of the modulus at 50 wt% LCP is observed due to the formation of co-continuous morphology. The blend modulus is lower than the values predicted by the rule of mixtures, suggesting a poor interface between the LCP droplets and ABS matrix. A copolymer of styrene and maleic anhydride (SMA) was added in the LCP/ABS blends during melt blending. It is observed that SMA has a compatibilizing effect on the blend system and an optimum SMA content exists for mechanical properties enhancement. SMA improves the interfacial adhesion, whereas excess of SMA reduces the LCP fibrillation.",

keywords = "ABS, Blend, Compatibilization, Liquid crystalline polymer",

author = "Xie, {W. B.} and Tam, {K. C.} and Yue, {C. Y.} and Lam, {Y. C.} and L. Li and X. Hu",

year = "2003",

month = may,

doi = "10.1002/pi.1123",

language = "English",

volume = "52",

pages = "733--739",

journal = "Polymer International",

issn = "0959-8103",

publisher = "John Wiley and Sons Ltd",

number = "5",

}

TY - JOUR

T1 - Mechanical properties and morphology of LCP/ABS blends compatibilized with a styrene-maleic anhydride copolymer

AU - Xie, W. B.

AU - Tam, K. C.

AU - Yue, C. Y.

AU - Lam, Y. C.

AU - Li, L.

AU - Hu, X.

PY - 2003/5

Y1 - 2003/5

N2 - A co-polyester liquid crystalline polymer (LCP) was melt blended with an acrylo- nitrile-butadiene-styrene copolymer (ABS). LCP fibrils are formed and a distinct skin/core morphology is observed in the injection moulded samples. At higher LCP concentration (50 wt%), phase inversion occurs, where the dispersed LCP phase becomes a co-continuous phase. While the tensile strength and Young's modulus remain unchanged with increasing LCP content up to 30 wt% LCP, a significant enhancement of the modulus at 50 wt% LCP is observed due to the formation of co-continuous morphology. The blend modulus is lower than the values predicted by the rule of mixtures, suggesting a poor interface between the LCP droplets and ABS matrix. A copolymer of styrene and maleic anhydride (SMA) was added in the LCP/ABS blends during melt blending. It is observed that SMA has a compatibilizing effect on the blend system and an optimum SMA content exists for mechanical properties enhancement. SMA improves the interfacial adhesion, whereas excess of SMA reduces the LCP fibrillation.

AB - A co-polyester liquid crystalline polymer (LCP) was melt blended with an acrylo- nitrile-butadiene-styrene copolymer (ABS). LCP fibrils are formed and a distinct skin/core morphology is observed in the injection moulded samples. At higher LCP concentration (50 wt%), phase inversion occurs, where the dispersed LCP phase becomes a co-continuous phase. While the tensile strength and Young's modulus remain unchanged with increasing LCP content up to 30 wt% LCP, a significant enhancement of the modulus at 50 wt% LCP is observed due to the formation of co-continuous morphology. The blend modulus is lower than the values predicted by the rule of mixtures, suggesting a poor interface between the LCP droplets and ABS matrix. A copolymer of styrene and maleic anhydride (SMA) was added in the LCP/ABS blends during melt blending. It is observed that SMA has a compatibilizing effect on the blend system and an optimum SMA content exists for mechanical properties enhancement. SMA improves the interfacial adhesion, whereas excess of SMA reduces the LCP fibrillation.

KW - ABS

KW - Blend

KW - Compatibilization

KW - Liquid crystalline polymer

UR - http://www.scopus.com/inward/record.url?scp=0037507686&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037507686&partnerID=8YFLogxK

U2 - 10.1002/pi.1123

DO - 10.1002/pi.1123

M3 - Article

AN - SCOPUS:0037507686

SN - 0959-8103

VL - 52

SP - 733

EP - 739

JO - Polymer International

JF - Polymer International

IS - 5

ER -

Mechanical properties and morphology of LCP/ABS blends compatibilized with a styrene-maleic anhydride copolymer

Abstract

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this