Poly Ether Ether Ketone and its Composite Powder Prepared by Thermally Induced Phase Separation for High Temperature Selective Laser Sintering

2021 ◽  
Author(s):  
Yuan Wang ◽  
Jiawei Shen ◽  
Mengxue Yan ◽  
Xiaoyong Tian
Author(s):  
CRISTIANE A. PIMENTEL ◽  
RODRIGO ALVARENGA REZENDE ◽  
MARCELO OLIVEIRA ◽  
JORGE VICENTE LOPES DA SILVA ◽  
MARCUS VINÍCIUS LIA FOOK

Author(s):  
K H Tan ◽  
C K Chua ◽  
K F Leong ◽  
M W Naing ◽  
C M Cheah

The ability to have precise control over porosity, scaffold shape, and internal pore architecture is critical in tissue engineering. For anchorage-dependent cells, the presence of three-dimensional scaffolds with interconnected pore networks is crucial to aid in the proliferation and reorganization of cells. This research explored the potential of rapid prototyping techniques such as selective laser sintering to fabricate solvent-free porous composite polymeric scaffolds comprising of different blends of poly(ether-ether-ketone) (PEEK) and hydroxyapatite (HA). The architecture of the scaffolds was created with a scaffold library of cellular units and a corresponding algorithm to generate the structure. Test specimens were produced and characterized by varying the weight percentage, starting with 10 wt% HA to 40 wt% HA, of physically mixed PEEK-HA powder blends. Characterization analyses including porosity, microstructure, composition of the scaffolds, bioactivity, and in vitro cell viability of the scaffolds were conducted. The results obtained showed a promising approach in fabricating scaffolds which can produce controlled microarchitecture and higher consistency.


2021 ◽  
Vol 185 ◽  
pp. 109502
Author(s):  
Akanksha Patel ◽  
Varun Venoor ◽  
FeiFei Yang ◽  
Xu Chen ◽  
Margaret J. Sobkowicz

2014 ◽  
Vol 5 (17) ◽  
pp. 4939-4947 ◽  
Author(s):  
Na Zhang ◽  
Chengji Zhao ◽  
Wenjia Ma ◽  
Shuang Wang ◽  
Baolong Wang ◽  
...  

The phosphoric acid doped quaternary ammonium poly(ether ether ketone) membranes cross-linked with PBI showed improved performance.


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