Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 133, Issue 4, Pages -Publisher
WILEY
DOI: 10.1002/app.42909
Keywords
biomedical applications; manufacturing; porous materials; structure-property relations
Categories
Funding
- National Natural Science Foundation of China [51303027, 11572290]
- China Postdoctoral Science Foundation [2014M560525]
- University Scientific Research Foundation of Fujian [JK2014030]
- Fujian Undergraduate Training Programs for Innovation and Entrepreneurship [201410388065]
Ask authors/readers for more resources
In this study, elastic porous polydimethylsiloxane (PDMS) cell scaffolds were fabricated by vacuum-assisted resin transfer moulding (VARTM) and particle leaching technologies. To control the porous morphology and porosity, different processing parameters, such as compression load, compression time, and NaCl particle size for preparing NaCl preform, were studied. The porous structures of PDMS cell scaffolds were characterized by scanning electron microscopy (SEM). The properties of PDMS cell scaffolds, including porosity, water absorption, interconnectivity, compression modulus, and compression strength were also investigated. The results showed that after the porogen-NaCl particles had been leached, the remaining pores had the sizes of 150-300, 300-450, and 450-600 mu m, which matched the sizes of the NaCl particles. The interconnectivity of PDMS cell scaffolds increases with an increase in the size of NaCl particles. It was also found that the smaller the size of the NaCl particles, the higher the porosity and water absorption of PDMS cell scaffolds. The content of residual NaCl in PDMS/NaCl scaffolds reduces under ultrasonic treatment. In addition, PDMS scaffolds with a pore size of 300-450 mu m have better mechanical properties compared to those with pore sizes of 150-300 and 450-600 mu m. (C) 2015 Wiley Periodicals, Inc.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available