Impact fracture energy of mineral‐filled polypropylene

Le‐Shang ‐S Chen; Yiu‐Wing ‐W Mai; Brian Cotterell

doi:10.1002/pen.760290804

Impact fracture energy of mineral‐filled polypropylene

Le‐Shang ‐S Chen, Yiu‐Wing ‐W Mai, Brian Cotterell

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

37 Citations (Scopus)

Abstract

The impact fracture energy (G_c) for a polypropylene homopolymer and a copolymer with and without calcium carbonate fillers was measured over a range of temperatures between −40°C and 40°C using fracture mechanics principles. The fillers studied were Omyacarb (∼2.7 μm) and Winnofil (∼75 nm) and 10% by weight was added to the matrix material. These fillers did not have any appreciable effect on G_c of the copolymer‐based composites. However, the Omyacarb fillers improved G_c of the homopolymer at low temperatures (⩽20°C) due to enhanced microplastic flow as observed on the fracture surfaces. The fillers increased the stiffness of both the homopolymer and copolymer. It would appear that up to 10% of cheap calcium carbonate fillers could be added to the more expensive polypropylene to reduce the production cost without any significant loss of impact fracture energy.

Original language	English
Pages (from-to)	505-512
Number of pages	8
Journal	Polymer Engineering & Science
Volume	29
Issue number	8
DOIs	https://doi.org/10.1002/pen.760290804
Publication status	Published - Apr 1989
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics
Materials Chemistry

More information

10.1002/pen.760290804

Cite this

@article{2b9cfb759bcc49d1b9b4d1e8eb9e71c2,

title = "Impact fracture energy of mineral‐filled polypropylene",

abstract = "The impact fracture energy (Gc) for a polypropylene homopolymer and a copolymer with and without calcium carbonate fillers was measured over a range of temperatures between −40°C and 40°C using fracture mechanics principles. The fillers studied were Omyacarb (∼2.7 μm) and Winnofil (∼75 nm) and 10% by weight was added to the matrix material. These fillers did not have any appreciable effect on Gc of the copolymer‐based composites. However, the Omyacarb fillers improved Gc of the homopolymer at low temperatures (⩽20°C) due to enhanced microplastic flow as observed on the fracture surfaces. The fillers increased the stiffness of both the homopolymer and copolymer. It would appear that up to 10% of cheap calcium carbonate fillers could be added to the more expensive polypropylene to reduce the production cost without any significant loss of impact fracture energy.",

author = "Chen, {Le‐Shang ‐S} and Mai, {Yiu‐Wing ‐W} and Brian Cotterell",

year = "1989",

month = apr,

doi = "10.1002/pen.760290804",

language = "English",

volume = "29",

pages = "505--512",

journal = "Polymer Engineering & Science",

issn = "0032-3888",

publisher = "John Wiley and Sons Inc.",

number = "8",

}

TY - JOUR

T1 - Impact fracture energy of mineral‐filled polypropylene

AU - Chen, Le‐Shang ‐S

AU - Mai, Yiu‐Wing ‐W

AU - Cotterell, Brian

PY - 1989/4

Y1 - 1989/4

N2 - The impact fracture energy (Gc) for a polypropylene homopolymer and a copolymer with and without calcium carbonate fillers was measured over a range of temperatures between −40°C and 40°C using fracture mechanics principles. The fillers studied were Omyacarb (∼2.7 μm) and Winnofil (∼75 nm) and 10% by weight was added to the matrix material. These fillers did not have any appreciable effect on Gc of the copolymer‐based composites. However, the Omyacarb fillers improved Gc of the homopolymer at low temperatures (⩽20°C) due to enhanced microplastic flow as observed on the fracture surfaces. The fillers increased the stiffness of both the homopolymer and copolymer. It would appear that up to 10% of cheap calcium carbonate fillers could be added to the more expensive polypropylene to reduce the production cost without any significant loss of impact fracture energy.

AB - The impact fracture energy (Gc) for a polypropylene homopolymer and a copolymer with and without calcium carbonate fillers was measured over a range of temperatures between −40°C and 40°C using fracture mechanics principles. The fillers studied were Omyacarb (∼2.7 μm) and Winnofil (∼75 nm) and 10% by weight was added to the matrix material. These fillers did not have any appreciable effect on Gc of the copolymer‐based composites. However, the Omyacarb fillers improved Gc of the homopolymer at low temperatures (⩽20°C) due to enhanced microplastic flow as observed on the fracture surfaces. The fillers increased the stiffness of both the homopolymer and copolymer. It would appear that up to 10% of cheap calcium carbonate fillers could be added to the more expensive polypropylene to reduce the production cost without any significant loss of impact fracture energy.

UR - http://www.scopus.com/inward/record.url?scp=0024639928&partnerID=8YFLogxK

U2 - 10.1002/pen.760290804

DO - 10.1002/pen.760290804

M3 - Journal article

AN - SCOPUS:0024639928

SN - 0032-3888

VL - 29

SP - 505

EP - 512

JO - Polymer Engineering & Science

JF - Polymer Engineering & Science

IS - 8

ER -

Impact fracture energy of mineral‐filled polypropylene

Abstract

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this