Next Article in Journal
CMOS-Compatible Silicon Nanowire Field-Effect Transistor Biosensor: Technology Development toward Commercialization
Previous Article in Journal
Microstructural Properties of Cement Paste and Mortar Modified by Low Cost Nanoplatelets Sourced from Natural Materials
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Materials 2018, 11(5), 784; https://doi.org/10.3390/ma11050784

Study on the Characteristics of Walnut Shell/Co-PES/Co-PA Powder Produced by Selective Laser Sintering

1
College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, China
2
Research and Development Center of 3D Printing Material and Technology, Northeast Forestry University, Harbin 150040, China
3
College of Engineering and Technology, Northeast Forestry University, Harbin 150040, China
*
Author to whom correspondence should be addressed.
Received: 27 March 2018 / Revised: 22 April 2018 / Accepted: 9 May 2018 / Published: 11 May 2018
View Full-Text   |   Download PDF [4701 KB, uploaded 11 May 2018]   |  

Abstract

Agricultural and forestry wastes are used as materials for selective laser sintering (SLS) to alleviate resource shortage, reduce the pollution of the environment, lower the cost of materials, and improve the accuracy of parts produced by SLS. However, the mechanical properties of wood–plastic parts are poor, and thus they cannot be applied widely. In order to improve the mechanical properties of wood–plastic parts, a new type of walnut shell polymer composite (WSPC) was prepared by a polymer mixing method and was used to produce parts via SLS. Additionally, the dimensional accuracy, morphologies, density, and mechanical properties of the WSPC parts were studied. The results showed that the addition of a small amount of copolyamide (Co-PA) powder could effectively improve the mechanical properties and decrease the density of the WSPC parts. By increasing the amount of Co-PA powder and decreasing that of copolyester (Co-PES) powder, the mechanical properties first increased, then decreased, and finally increased again; in addition, the density first decreased then increased. By increasing the preheating temperature, the mechanical properties and density of the WSPC parts were enhanced. View Full-Text
Keywords: three-dimensional printing; selective laser sintering; agricultural and forestry wastes; walnut shell; polymer three-dimensional printing; selective laser sintering; agricultural and forestry wastes; walnut shell; polymer
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Yu, Y.; Guo, Y.; Jiang, T.; Li, J.; Jiang, K.; Zhang, H.; Zhuang, Y. Study on the Characteristics of Walnut Shell/Co-PES/Co-PA Powder Produced by Selective Laser Sintering. Materials 2018, 11, 784.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top