Structured polymer blends 2 : processing of polypropylene EDPM blends : controlled rheology and morphology fixation via electron beam irradiation

J.G.M. Gisbergen, van; H.E.H. Meijer; P.J. Lemstra

doi:10.1016/0032-3861(89)90241-3

Structured polymer blends 2 : processing of polypropylene EDPM blends : controlled rheology and morphology fixation via electron beam irradiation

J.G.M. Gisbergen, van, H.E.H. Meijer, P.J. Lemstra

Processing and Performance

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Abstract

Electron beam irradiation has been used to improve the processability of polypropylene/ethylene-propylenediene monomer (PP/EPDM) blends (controlled rheology) in combination with fixation of morphology by inducing crosslinks in the dispersed EPDM phase. An optimum morphology for impact toughening has been obtained via extrusion-blending high molecular weight PP with EPDM. Upon irradiation before subsequent processing (injection moulding) this morphology is fixated, whereas the viscosity of the blend decreases as a result of chain scission of the PP matrix. Impact strength and elongation at break of these irradiated blends are better than those of blends of low molecular weight PP with EPDM, which possess comparable overall viscosity.

Original language	English
Pages (from-to)	2153-2157
Journal	Polymer
Volume	30
Issue number	12
DOIs	https://doi.org/10.1016/0032-3861(89)90241-3
Publication status	Published - 1989

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title = "Structured polymer blends 2 : processing of polypropylene EDPM blends : controlled rheology and morphology fixation via electron beam irradiation",

abstract = "Electron beam irradiation has been used to improve the processability of polypropylene/ethylene-propylenediene monomer (PP/EPDM) blends (controlled rheology) in combination with fixation of morphology by inducing crosslinks in the dispersed EPDM phase. An optimum morphology for impact toughening has been obtained via extrusion-blending high molecular weight PP with EPDM. Upon irradiation before subsequent processing (injection moulding) this morphology is fixated, whereas the viscosity of the blend decreases as a result of chain scission of the PP matrix. Impact strength and elongation at break of these irradiated blends are better than those of blends of low molecular weight PP with EPDM, which possess comparable overall viscosity.",

author = "{Gisbergen, van}, J.G.M. and H.E.H. Meijer and P.J. Lemstra",

year = "1989",

doi = "10.1016/0032-3861(89)90241-3",

language = "English",

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T1 - Structured polymer blends 2 : processing of polypropylene EDPM blends : controlled rheology and morphology fixation via electron beam irradiation

AU - Gisbergen, van, J.G.M.

AU - Meijer, H.E.H.

AU - Lemstra, P.J.

PY - 1989

Y1 - 1989

N2 - Electron beam irradiation has been used to improve the processability of polypropylene/ethylene-propylenediene monomer (PP/EPDM) blends (controlled rheology) in combination with fixation of morphology by inducing crosslinks in the dispersed EPDM phase. An optimum morphology for impact toughening has been obtained via extrusion-blending high molecular weight PP with EPDM. Upon irradiation before subsequent processing (injection moulding) this morphology is fixated, whereas the viscosity of the blend decreases as a result of chain scission of the PP matrix. Impact strength and elongation at break of these irradiated blends are better than those of blends of low molecular weight PP with EPDM, which possess comparable overall viscosity.

AB - Electron beam irradiation has been used to improve the processability of polypropylene/ethylene-propylenediene monomer (PP/EPDM) blends (controlled rheology) in combination with fixation of morphology by inducing crosslinks in the dispersed EPDM phase. An optimum morphology for impact toughening has been obtained via extrusion-blending high molecular weight PP with EPDM. Upon irradiation before subsequent processing (injection moulding) this morphology is fixated, whereas the viscosity of the blend decreases as a result of chain scission of the PP matrix. Impact strength and elongation at break of these irradiated blends are better than those of blends of low molecular weight PP with EPDM, which possess comparable overall viscosity.

U2 - 10.1016/0032-3861(89)90241-3

DO - 10.1016/0032-3861(89)90241-3

M3 - Article

SN - 0032-3861

VL - 30

SP - 2153

EP - 2157

JO - Polymer

JF - Polymer

IS - 12

ER -

Structured polymer blends 2 : processing of polypropylene EDPM blends : controlled rheology and morphology fixation via electron beam irradiation

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