First observation of the effect of the layer printing sequence on the molecular structure of three-dimensionally printed polymer, as shown by in-plane capacitance measurement

Naga B. Gundrati; Patatri Chakraborty; Chi Zhou; D. D.L. Chung

doi:10.1016/j.compositesb.2017.12.008

First observation of the effect of the layer printing sequence on the molecular structure of three-dimensionally printed polymer, as shown by in-plane capacitance measurement

Naga B. Gundrati
, Patatri Chakraborty
, Chi Zhou
, D. D.L. Chung

SUNY Buffalo

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The layer printing sequence in three-dimensional (3D) printing affects the molecular structure of the printed layers, as shown for bottom-up stereolithography printing using an ultraviolet-curable acrylate ester resin. The first printed layer has less molecular alignment than the last printed layer, due to the longer ultraviolet exposure and consequent more curing in the former. Increasing the layer thickness from 12.4 to 26.3 μm decreases this effect, due to the greater molecular alignment for a smaller layer thickness. These results are obtained by measuring the in-plane capacitance for the two opposite surfaces of the printed material. The technique is unprecedented in 3D printing.

Original language	English
Pages (from-to)	78-82
Number of pages	5
Journal	Composites Part B: Engineering
Volume	140
DOIs	https://doi.org/10.1016/j.compositesb.2017.12.008
State	Published - May 1 2018

Keywords

Layered structures
Microstructures
Non-destructive testing
Process monitoring
Three-dimensional printing

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10.1016/j.compositesb.2017.12.008

Cite this

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title = "First observation of the effect of the layer printing sequence on the molecular structure of three-dimensionally printed polymer, as shown by in-plane capacitance measurement",

abstract = "The layer printing sequence in three-dimensional (3D) printing affects the molecular structure of the printed layers, as shown for bottom-up stereolithography printing using an ultraviolet-curable acrylate ester resin. The first printed layer has less molecular alignment than the last printed layer, due to the longer ultraviolet exposure and consequent more curing in the former. Increasing the layer thickness from 12.4 to 26.3 μm decreases this effect, due to the greater molecular alignment for a smaller layer thickness. These results are obtained by measuring the in-plane capacitance for the two opposite surfaces of the printed material. The technique is unprecedented in 3D printing.",

keywords = "Layered structures, Microstructures, Non-destructive testing, Process monitoring, Three-dimensional printing",

author = "Gundrati, \{Naga B.\} and Patatri Chakraborty and Chi Zhou and Chung, \{D. D.L.\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

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doi = "10.1016/j.compositesb.2017.12.008",

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First observation of the effect of the layer printing sequence on the molecular structure of three-dimensionally printed polymer, as shown by in-plane capacitance measurement. / Gundrati, Naga B.; Chakraborty, Patatri; Zhou, Chi et al.
In: Composites Part B: Engineering, Vol. 140, 01.05.2018, p. 78-82.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - First observation of the effect of the layer printing sequence on the molecular structure of three-dimensionally printed polymer, as shown by in-plane capacitance measurement

AU - Gundrati, Naga B.

AU - Chakraborty, Patatri

AU - Zhou, Chi

AU - Chung, D. D.L.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The layer printing sequence in three-dimensional (3D) printing affects the molecular structure of the printed layers, as shown for bottom-up stereolithography printing using an ultraviolet-curable acrylate ester resin. The first printed layer has less molecular alignment than the last printed layer, due to the longer ultraviolet exposure and consequent more curing in the former. Increasing the layer thickness from 12.4 to 26.3 μm decreases this effect, due to the greater molecular alignment for a smaller layer thickness. These results are obtained by measuring the in-plane capacitance for the two opposite surfaces of the printed material. The technique is unprecedented in 3D printing.

AB - The layer printing sequence in three-dimensional (3D) printing affects the molecular structure of the printed layers, as shown for bottom-up stereolithography printing using an ultraviolet-curable acrylate ester resin. The first printed layer has less molecular alignment than the last printed layer, due to the longer ultraviolet exposure and consequent more curing in the former. Increasing the layer thickness from 12.4 to 26.3 μm decreases this effect, due to the greater molecular alignment for a smaller layer thickness. These results are obtained by measuring the in-plane capacitance for the two opposite surfaces of the printed material. The technique is unprecedented in 3D printing.

KW - Layered structures

KW - Microstructures

KW - Non-destructive testing

KW - Process monitoring

KW - Three-dimensional printing

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VL - 140

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JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

ER -

First observation of the effect of the layer printing sequence on the molecular structure of three-dimensionally printed polymer, as shown by in-plane capacitance measurement

Abstract

Keywords

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