Techniques and results for fiber length distribution determination as a function of thickness in long fiber reinforced injection molded thermoplastics

Vlastimil Kunc, Barbara Frame, Jeff Pryor, Ba Nghiep Nguyen, Charles L. Tucker, Scott Case, Dayakar Penumadu, Eric W. Guffey

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A novel measurement technique was developed to obtain unbiased fiber length distribution (FLD) measurements at specified locations in the thickness of the sample. This technique relies on elastic energy stored in long fiber thermoplastics (LFT), which is released during partially constrained burn-off. This release results in an increase of thickness dimension of the sample and partial disentanglement, allowing sample selection and subsequent filament separation. Quantitative FLD results and the measurement technique are discussed in detail. The FLD in long fiber reinforced injection molded thermoplastics is shown to vary as a function of thickness.

Original languageEnglish
Title of host publicationSPE Automotive and Composites Division - 8th Annual Automotive Composites Conference and Exhibition, ACCE 2008 - The Road to Lightweight Performance
Pages1146-1155
Number of pages10
StatePublished - 2008
Event8th Annual Automotive Composites Conference and Exhibition, ACCE 2008 - The Road to Lightweight Performance - Troy, MI, United States
Duration: Sep 16 2008Sep 18 2008

Publication series

NameSPE Automotive and Composites Division - 8th Annual Automotive Composites Conference and Exhibition, ACCE 2008 - The Road to Lightweight Performance
Volume2

Conference

Conference8th Annual Automotive Composites Conference and Exhibition, ACCE 2008 - The Road to Lightweight Performance
Country/TerritoryUnited States
CityTroy, MI
Period09/16/0809/18/08

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