Coating window for double layer extrusion slot coating of poly (vinyl-alcohol) solutions

2001 ◽  
Vol 41 (10) ◽  
pp. 1823-1829 ◽  
Author(s):  
Shih-Yuan Lu ◽  
Yu-Ping Lin ◽  
Ta-Jo Liu
Keyword(s):  
Double Layer ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Slot Coating ◽  
Coating Window

Minimum wet thickness for double-layer slide-slot coating of poly(vinyl-alcohol) solutions

2005 ◽  
Vol 45 (12) ◽  
pp. 1590-1599 ◽  
Author(s):  
Yao-Nan Lin ◽  
Ta-Jo Liu ◽  
Shyh-Jye Hwang
Keyword(s):  
Double Layer ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Slot Coating

Cellulose and poly(vinyl alcohol) composite gels as separators for quasi-solid-state electric double layer capacitors

Cellulose ◽  
2018 ◽  
Vol 26 (2) ◽  
pp. 1055-1065 ◽  
Author(s):  
Yongsheng Ji ◽  
Na Liang ◽  
Jing Xu ◽  
Danying Zuo ◽  
Dongzhi Chen ◽  
...  
Keyword(s):  
Solid State ◽  
Double Layer ◽  
Vinyl Alcohol ◽  
Electric Double Layer ◽  
Poly Vinyl Alcohol ◽  
Composite Gels ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

scholarly journals Design and evaluation of nano-hydroxyapatite/poly(vinyl alcohol) hydrogels coated with poly(lactic-co-glycolic acid)/nano-hydroxyapatite/poly(vinyl alcohol) scaffolds for cartilage repair

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Weiping Su ◽  
Yihe Hu ◽  
Min Zeng ◽  
Mingqing Li ◽  
Shaoru Lin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Double Layer ◽  
Cartilage Repair ◽  
Vinyl Alcohol ◽  
Glycolic Acid ◽  
Mechanical Load ◽  
Poly Vinyl Alcohol ◽  
Primary Role ◽  
Pva Hydrogel

Abstract Background Poly(vinyl alcohol) (PVA) hydrogels have been widely used in synthetic cartilage materials. However, limitations of PVA hydrogels such as poor biomechanics and limited cell ingrowth remain challenges in this field. Methods This work aimed to design novel nano-hydroxyapatite (nano-HA)/poly(vinyl alcohol) (PVA) hydrogels coated with a poly(lactic-co-glycolic acid) (PLGA)/nano-HA/PVA scaffold to counter the limitations of PVA hydrogels. The core, comprising nano-HA/PVA hydrogel, had the primary role of bearing the mechanical load. The peripheral structure, composed of PLGA/nano-HA/PVA, was designed to favor interaction with surrounding cartilage. Results The double-layer HA/PVA hydrogel coated with PLGA/HA/PVA scaffold was successfully prepared using a two-step molding method, and the mechanical properties and biocompatibility were characterized. The mechanical properties of the novel PLGA/HA/PVA scaffold modified HA/PVA hydrogel were similar to those of native cartilage and showed greater sensitivity to compressive stress than to tensile stress. Rabbit chondrocytes were seeded in the composites to assess the biocompatibility and practicability in vitro. The results showed that the peripheral component comprising 30 wt% PLGA/5 wt% HA/15 wt% PVA was most conducive to rabbit chondrocyte adhesion and proliferation. Conclusions The study indicated that the double-layer HA/PVA hydrogel coated with PLGA/HA/PVA scaffold has the potential for cartilage repair.

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