Experimental and modeling investigation on the viscoelastic-viscoplastic deformation of polyamide 12 printed by Multi Jet Fusion

2021 ◽  
pp. 103029
Author(s):  
Kaijuan Chen ◽  
How Wei Benjamin Teo ◽  
Wei Rao ◽  
Guozheng Kang ◽  
Kun Zhou ◽  
...  
Keyword(s):  
Viscoplastic Deformation ◽  
Polyamide 12

scholarly journals Degradation of Laser Sintered polyamide 12 parts due to accelerated exposure to ultraviolet radiation

2021 ◽  
pp. 102132
Author(s):  
Alec S.D. Shackleford ◽  
Rhys Williams ◽  
Ryan Brown ◽  
James R. Wingham ◽  
Candice Majewski
Keyword(s):  
Ultraviolet Radiation ◽  
Polyamide 12

Aging of polyamide 12 in oil at different temperatures and pressures

2017 ◽  
Vol 28 (12) ◽  
pp. 1778-1786 ◽  
Author(s):  
José Leonardo Monroy Hernández ◽  
José Roberto Moraes d'Almeida
Keyword(s):  
Polyamide 12 ◽  
Different Temperatures

Improved constitutive description of single crystal viscoplastic deformation by dislocation climb

2012 ◽  
Vol 340 (4-5) ◽  
pp. 289-295 ◽  
Author(s):  
Ricardo A. Lebensohn ◽  
R.A. Holt ◽  
A. Caro ◽  
A. Alankar ◽  
C.N. Tomé
Keyword(s):  
Single Crystal ◽  
Dislocation Climb ◽  
Viscoplastic Deformation

Study in performance and morphology of polyamide 12 produced by selective laser sintering technology

2018 ◽  
Vol 24 (5) ◽  
pp. 813-820 ◽  
Author(s):  
Junjie Wu ◽  
Xiang Xu ◽  
Zhihao Zhao ◽  
Minjie Wang ◽  
Jie Zhang
Keyword(s):  
Selective Laser Sintering ◽  
Polarized Light ◽  
Chain Scission ◽  
High Energy ◽  
Laser Sintering ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Content Type ◽  
X Ray ◽  
Polyamide 12

Purpose The purpose of this paper is to investigate the effect of selective laser sintering (SLS) method on morphology and performance of polyamide 12. Design/methodology/approach Crystallization behavior is critical to the properties of semi-crystalline polymers. The crystallization condition of SLS process is much different from others. The morphology of polyamide 12 produced by SLS technology was investigated using scanning electron microscopy, polarized light microscopy, differential scanning calorimetry, X-ray diffraction and wide-angle X-ray diffraction. Findings Too low fill laser power brought about bad fusion of powders, while too high energy input resulted in bad performance due to chain scission of macromolecules. There were three types of crystal in the raw powder material, denoted as overgrowth crystal, ring-banded spherulite and normal spherulite. Originality/value In this work, SLS samples with different sintering parameters, as well as compression molding sample for the purpose of comparison, were made to study the morphology and crystal structure of sintered PA12 in detail.

Mechanical properties of polyamide 12 after exposed to biodiesel

2016 ◽  
Author(s):  
Roberto A. Nascimento ◽  
Adriana M. Catelli de Souza
Keyword(s):  
Mechanical Properties ◽  
Polyamide 12

Controllable preparation of polyamide 12@SiO2composite powders

2018 ◽  
Vol 40 (3) ◽  
pp. 1251-1257 ◽  
Author(s):  
Xinhua Wang ◽  
Qingze Jiao ◽  
Meimei Gao ◽  
Caihong Feng ◽  
Hansheng Li ◽  
...  
Keyword(s):  
Polyamide 12 ◽  
Controllable Preparation
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