Next Article in Journal
Effect of Anisotropy on the Resilient Behaviour of a Granular Material in Low Traffic Pavement
Previous Article in Journal
Effect of Solution Treatment on Precipitation Behaviors, Age Hardening Response and Creep Properties of Elektron21 Alloy Reinforced by AlN Nanoparticles
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Materials 2017, 10(12), 1381; doi:10.3390/ma10121381

Study on the Ingredient Proportions and After-Treatment of Laser Sintering Walnut Shell Composites

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: 14 November 2017 / Revised: 29 November 2017 / Accepted: 1 December 2017 / Published: 2 December 2017
View Full-Text   |   Download PDF [4221 KB, uploaded 4 December 2017]   |  

Abstract

To alleviate resource shortage, reduce the cost of materials consumption and the pollution of agricultural and forestry waste, walnut shell composites (WSPC) consisting of walnut shell as additive and copolyester hot melt adhesive (Co-PES) as binder was developed as the feedstock of selective laser sintering (SLS). WSPC parts with different ingredient proportions were fabricated by SLS and processed through after-treatment technology. The density, mechanical properties and surface quality of WSPC parts before and after post processing were analyzed via formula method, mechanical test and scanning electron microscopy (SEM), respectively. Results show that, when the volume fraction of the walnut shell powder in the WSPC reaches the maximum (40%), sintered WSPC parts have the smallest warping deformation and the highest dimension precision, although the surface quality, density, and mechanical properties are low. However, performing permeating resin as the after-treatment technology could considerably increase the tensile, bending and impact strength by 496%, 464%, and 516%, respectively. View Full-Text
Keywords: waste; walnut shell; 3D printing; selective laser sintering; after-treatment waste; walnut shell; 3D printing; selective laser sintering; after-treatment
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 alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yu, Y.; Guo, Y.; Jiang, T.; Li, J.; Jiang, K.; Zhang, H. Study on the Ingredient Proportions and After-Treatment of Laser Sintering Walnut Shell Composites. Materials 2017, 10, 1381.

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