Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products

Stan, Daniel V.

Daniel V. Stan

Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products

Abstract:
The first part of the paper presents the specific issues from the injection molding associated with the water content of the hygroscopic plastics (water adsorption, equilibrium moisture level, chemical affinity, hydrolysis) and recommendations regarding the drying of plastics for injection, the drying methods and defects specific to products injected due to the moisture content. The experimental results on the injection of a polyamide (AKULON) and of a thermoplastic polyurethane (DESMOPAN) presented in the second part of the paper are focused on the surface appearance fault 'splay' associated with the different values of moisture content for these two materials, verify the value for the admitted moisture content for two hygroscopic materials, polyamide and thermoplastic polyurethane, and ends with conclusions on the residual humidity allowed and opinions on choosing the drying technology and parameters.

Keywords:
plastics; moisture; drying; faults; injected parts; residual moisture content; splay

Issue: 2020 Volume 57, Issue 1

Pages: 46-56

Publication date: 2020/4/17

https://doi.org/10.37358/MP.20.1.5311

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
STAN, D.V., , Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products, Mater. Plast., 57(1), 2020, 46-56. https://doi.org/10.37358/MP.20.1.5311

Vancouver
Stan DV. Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products. Mater. Plast.[internet]. 2020 Jan;57(1):46-56. Available from: https://doi.org/10.37358/MP.20.1.5311

APA 6th edition
Stan, D.V., (2020). Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products. Materiale Plastice, 57(1), 46-56. https://doi.org/10.37358/MP.20.1.5311

Harvard
Stan, D.V., (2020). 'Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products', Materiale Plastice, 57(1), pp. 46-56. https://doi.org/10.37358/MP.20.1.5311

IEEE
D.V. Stan, "Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products". Materiale Plastice, vol. 57, no. 1, pp. 46-56, 2020. [online]. https://doi.org/10.37358/MP.20.1.5311

Text
Daniel V. Stan,
Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products,
Materiale Plastice,
Volume 57, Issue 1,
2020,
Pages 46-56,
ISSN 2668-8220,
https://doi.org/10.37358/MP.20.1.5311.
(https://revmaterialeplastice.ro/Articles.asp?ID=5311)
Keywords: plastics; moisture; drying; faults; injected parts; residual moisture content; splay

RIS
TY - JOUR
T1 - Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products
A1 - Stan, Daniel V.
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2020
VL - 57
IS - 1
SP - 46
EP - 56
UR - https://doi.org/10.37358/MP.20.1.5311
KW - plastics
KW - moisture
KW - drying
KW - faults
KW - injected parts
KW - residual moisture content
KW - splay
ER -

BibTex
@article{MatPlast2020P46,
author = {Stan Daniel V.},
title = {Considerations on the Drying of the Raw Material and Consequences on the Quality of the Injected Products},
journal = {Materiale Plastice},
volume = {57},
number = {1},
pages = {46-56},
year = {2020},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.20.1.5311},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5311}
}

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