scholarly journals Coupled effect of poly vinyl alcohol and fly ash on mechanical characteristics of concrete

Author(s):  
Hong-Hu Chu ◽  
Bilal Siddiq ◽  
Fahid Aslam ◽  
Muhammad Faisal Javed ◽  
Wei Wang ◽  
...  
2014 ◽  
Vol 604 ◽  
pp. 180-183
Author(s):  
Velta Tupureina ◽  
Anda Dzene ◽  
Marcis Dzenis

Formation process of flax fiber reinforced biocomposites based on waterborne matrix systems from modified polymers - polyhydroxybutyrate, poly (vinyl alcohol) was developed by suspension casting technique. Two kind of flax fiber as reinforcement was employed Latvian variety Vega-2 and flax combing. The correlation between matrix composition, fiber origin, content and mechanical characteristics, water vapour absorption and biodegradability was established. Optimal characteristics of elaborated eco-composites were obtained by use of flax combing with fiber content ~ 30 wt. %.


2010 ◽  
Vol 45 (10) ◽  
pp. 2625-2632 ◽  
Author(s):  
Dilip Chandra Deb Nath ◽  
Sri Bandyopadhyay ◽  
Philip Boughton ◽  
Aibing Yu ◽  
Darryl Blackburn ◽  
...  

2017 ◽  
Vol 327 ◽  
pp. 992-999 ◽  
Author(s):  
A-Hui Kang ◽  
Ke Shang ◽  
Dan-Dan Ye ◽  
Yu-Tao Wang ◽  
Han Wang ◽  
...  

2009 ◽  
Vol 45 (5) ◽  
pp. 1354-1360 ◽  
Author(s):  
Dilip Chandra Deb Nath ◽  
Sri Bandyopadhyay ◽  
Aibing Yu ◽  
Darryl Blackburn ◽  
Chris White

2013 ◽  
Vol 448-453 ◽  
pp. 2959-2962
Author(s):  
Xuan Lun Wang ◽  
You Bing Li ◽  
Il Kwon Oh

Sulfonated endcapped poly (arylenethioethersulfone) copolymer (SPTES) was synthesized through direct copolymerization of sulfonated monomers and poly (vinyl alcohol) (PVA) was crosslinked with SPTES by the dehydration method. The mechanical characteristics of polymer actuators are investigated. Nafion actuators as a comparison were also investigated. The normalized tip displacements were calculated for both PVA/SPTES actuators and Nafion actuators in order to delete the dimensions influence on the bending behaviours. The bending performances were tested under AC excitations with different frequencies. The results showed that the normalized tip displacement decreased with both the width and length of the IPMC strips. That is due to the increase of the monment inetia of the IPMC strips with the increment of the width or the length increment will lead to the larger resistance force from ambient water along with the increase of the area of IPMC strips. PVA/SPTES actuators showed comparable bending performances compared with its Nafion counterparts based on the study of mechanical properties.


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