Low density polyethylene-polypropylene blends Part 2 - Strengthening and toughening with copolymer

Mingbo Yang; Ke Wang; Lin Ye; Yiu Wing Mai; Jingshen Wu

doi:10.1179/146580103225009095

Low density polyethylene-polypropylene blends Part 2 - Strengthening and toughening with copolymer

Mingbo Yang, Ke Wang, Lin Ye, Yiu Wing Mai, Jingshen Wu

Research output: Journal article publication › Journal article › Academic research › peer-review

14 Citations (Scopus)

Abstract

The strengthening and toughening of low density polyethylene (LDPE)-polypropylene (PP) blends with a commercial ethylene/propylene block copolymer (CO) have been investigated. It is shown that the addition of the copolymer improved the ductility of the LDPE-PP blends without any loss of elastic modulus. Particularly for the PP rich LDPE-PP blends, the copolymer can improve the ductility, tensile strength and impact strength simultaneously. It was found that the copolymer has no obvious influence on the crystallisation behaviour of the LDPE and PP phases, whereas the interfacial adhesion was enhanced significantly. The results suggested that the ethylene/propylene block copolymer is a suitable compatibiliser for LDPE-PP blends, which can be used as an effective additive for the recycling of the polyalkene mixtures, especially the PP rich LDPE-PP mixtures.

Original language	English
Pages (from-to)	27-31
Number of pages	5
Journal	Plastics, Rubber and Composites
Volume	32
Issue number	1
DOIs	https://doi.org/10.1179/146580103225009095
Publication status	Published - 2003
Externally published	Yes

ASJC Scopus subject areas

Ceramics and Composites
General Chemical Engineering
Polymers and Plastics
Materials Chemistry

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10.1179/146580103225009095

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abstract = "The strengthening and toughening of low density polyethylene (LDPE)-polypropylene (PP) blends with a commercial ethylene/propylene block copolymer (CO) have been investigated. It is shown that the addition of the copolymer improved the ductility of the LDPE-PP blends without any loss of elastic modulus. Particularly for the PP rich LDPE-PP blends, the copolymer can improve the ductility, tensile strength and impact strength simultaneously. It was found that the copolymer has no obvious influence on the crystallisation behaviour of the LDPE and PP phases, whereas the interfacial adhesion was enhanced significantly. The results suggested that the ethylene/propylene block copolymer is a suitable compatibiliser for LDPE-PP blends, which can be used as an effective additive for the recycling of the polyalkene mixtures, especially the PP rich LDPE-PP mixtures.",

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T1 - Low density polyethylene-polypropylene blends Part 2 - Strengthening and toughening with copolymer

AU - Yang, Mingbo

AU - Wang, Ke

AU - Ye, Lin

AU - Mai, Yiu Wing

AU - Wu, Jingshen

PY - 2003

Y1 - 2003

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AB - The strengthening and toughening of low density polyethylene (LDPE)-polypropylene (PP) blends with a commercial ethylene/propylene block copolymer (CO) have been investigated. It is shown that the addition of the copolymer improved the ductility of the LDPE-PP blends without any loss of elastic modulus. Particularly for the PP rich LDPE-PP blends, the copolymer can improve the ductility, tensile strength and impact strength simultaneously. It was found that the copolymer has no obvious influence on the crystallisation behaviour of the LDPE and PP phases, whereas the interfacial adhesion was enhanced significantly. The results suggested that the ethylene/propylene block copolymer is a suitable compatibiliser for LDPE-PP blends, which can be used as an effective additive for the recycling of the polyalkene mixtures, especially the PP rich LDPE-PP mixtures.

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Low density polyethylene-polypropylene blends Part 2 - Strengthening and toughening with copolymer

Abstract

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