The requirement to consider the whole lifecycle of products including disassembly and recycling has resulted in considerable interest debond-on-demand adhesives. These smart materials undergo controlled loss adhesive strength when subject a specific stimulus. This paper reports design crosslinked polyurethane (PU) which incorporates fluoride responsive degradable group. PU (CLP) showed 28 % inc...

the 24 maltiparous holstein dairy cows were allocated in a completely randomized design to study the effects of different level and source of sulfur supplement in close-up diets on blood metabolites, colostrums composition and liver performance. the mean body weight of the cows was 687.9 kg and the mean days until expected calving date was 21.8 d. the first treatment (t1) has contained 0.21% su...

Presenting a suitable hydrogel for water shutoff in Iranian oil field is based on gelation time and gel strength. Rheological behavior of was the main purpose this research. To determine time, thermal stability strength plan bottle tests were conducted by using central composite design method with two factors. The hydrogels composed AN125VLM chromium triacetate as copolymer crosslinker, respect...