Observation and understanding of scratch behaviors of glass fiber reinforced polycarbonate plates with various packing pressures during the injection molding process

Jung Wook Wee, Sang Yoon Park, Byoung-Ho Choi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In this paper, the scratch resistance of injection molded, glass fiber reinforced polycarbonate (PC), constructed with different packing pressures and fiber compositions, was evaluated using the progressive normal load scratch test. The quantitative evaluation of scratch resistance of the samples was based on the onset of visibility and morphological transition points of the scratch for two fiber orientations and various scratch speeds. This study reveals that glass fiber reinforcement exerts a beneficial influence on scratch visibility; however, it has an adverse effect on morphological damage. Anisotropy and heterogeneity of glass fiber reinforced PC also plays a role in scratch resistance. The relationship between the onset of scratch visibility and damage transition points is also discussed.

Original languageEnglish
Pages (from-to)491-501
Number of pages11
JournalTribology International
Volume90
DOIs
Publication statusPublished - 2015 Jun 3

Fingerprint

polycarbonate
injection molding
polycarbonates
glass fibers
Polycarbonates
Injection molding
visibility
Visibility
Glass fibers
transition points
Fiber reinforced materials
load tests
damage
fiber orientation
reinforcement
Anisotropy
injection
anisotropy
fibers
Fibers

Keywords

  • Glass fibers
  • Injection molding
  • Polycarbonate
  • Scratch

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

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AU - Wee, Jung Wook

AU - Park, Sang Yoon

AU - Choi, Byoung-Ho

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N2 - In this paper, the scratch resistance of injection molded, glass fiber reinforced polycarbonate (PC), constructed with different packing pressures and fiber compositions, was evaluated using the progressive normal load scratch test. The quantitative evaluation of scratch resistance of the samples was based on the onset of visibility and morphological transition points of the scratch for two fiber orientations and various scratch speeds. This study reveals that glass fiber reinforcement exerts a beneficial influence on scratch visibility; however, it has an adverse effect on morphological damage. Anisotropy and heterogeneity of glass fiber reinforced PC also plays a role in scratch resistance. The relationship between the onset of scratch visibility and damage transition points is also discussed.

AB - In this paper, the scratch resistance of injection molded, glass fiber reinforced polycarbonate (PC), constructed with different packing pressures and fiber compositions, was evaluated using the progressive normal load scratch test. The quantitative evaluation of scratch resistance of the samples was based on the onset of visibility and morphological transition points of the scratch for two fiber orientations and various scratch speeds. This study reveals that glass fiber reinforcement exerts a beneficial influence on scratch visibility; however, it has an adverse effect on morphological damage. Anisotropy and heterogeneity of glass fiber reinforced PC also plays a role in scratch resistance. The relationship between the onset of scratch visibility and damage transition points is also discussed.

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KW - Injection molding

KW - Polycarbonate

KW - Scratch

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