Waste shell stacking with odor and toxicity is a serious hazard to our living environment. To make effective use of the natural resources, the shell powder was applied as a filler of outdoor thermal insulation coating...Waste shell stacking with odor and toxicity is a serious hazard to our living environment. To make effective use of the natural resources, the shell powder was applied as a filler of outdoor thermal insulation coatings. Sodium stearate(SS) was used to modify the properties of shell powder to reduce its agglomeration and to increase its compatibility with the emulsion. The oil absorption rate and the spectrum reflectance of the shell powder show that the optimized content of SS as a modifier is 1.5wt%. The total spectrum reflectance of the coating made with the shell powder that is modified at this optimum SS content is 9.33% higher than that without any modification. At the optimum SS content of 1.5wt%, the thermal insulation of the coatings is improved by 1.0℃ for the cement mortar board and 1.6℃ for the steel plate, respectively. The scouring resistance of the coating with the 1.5wt% SS-modified shell powder is three times that of the coating without modification.展开更多
The phase behavior and property of aqueous two-phase system formed by SS(PS)/CTAB/NaBr/H2O mixture had been studied.The results indicated that there was only one ATPS region in the both systems,and the system with PS ...The phase behavior and property of aqueous two-phase system formed by SS(PS)/CTAB/NaBr/H2O mixture had been studied.The results indicated that there was only one ATPS region in the both systems,and the system with PS showed a peculiar inversion of ATPS.As a function of composition,the volume ratio appeared a turn on its relation curve.It was surposed that one side of the turn was ATPS which contains cubic liquid crystal,the other dosen’t.When the ratio of top vulume to bottom volume was close to 1,the ATPS forming time was the shortest,and vice versa.展开更多
The major objective of this experimental study is to investigate and compare the corrosion resistance of medium Carbon steel (MCS) and KS7 stainless steel in saline and sodium carbonate environments. The MCS and KS7 S...The major objective of this experimental study is to investigate and compare the corrosion resistance of medium Carbon steel (MCS) and KS7 stainless steel in saline and sodium carbonate environments. The MCS and KS7 SS were exposed to 0.5 M each of NaCl and Na2CO3 solutions for a period of 36 days. The weight loss was taken every 3 days in order to evaluate CPR. The results obtained showed that KS7 SS generally offers a better corrosion resistance than the MCS in the selected media. While MCS is found to be inappropriate alloy in saline and sodium carbonate environments, KS7 SS is an unfailing choice material for manufacturing machines and other engineering amenities in which their service lives are predominant in Na2CO3 medium and fairly pleasing in NaCl environment.展开更多
文摘Waste shell stacking with odor and toxicity is a serious hazard to our living environment. To make effective use of the natural resources, the shell powder was applied as a filler of outdoor thermal insulation coatings. Sodium stearate(SS) was used to modify the properties of shell powder to reduce its agglomeration and to increase its compatibility with the emulsion. The oil absorption rate and the spectrum reflectance of the shell powder show that the optimized content of SS as a modifier is 1.5wt%. The total spectrum reflectance of the coating made with the shell powder that is modified at this optimum SS content is 9.33% higher than that without any modification. At the optimum SS content of 1.5wt%, the thermal insulation of the coatings is improved by 1.0℃ for the cement mortar board and 1.6℃ for the steel plate, respectively. The scouring resistance of the coating with the 1.5wt% SS-modified shell powder is three times that of the coating without modification.
文摘The phase behavior and property of aqueous two-phase system formed by SS(PS)/CTAB/NaBr/H2O mixture had been studied.The results indicated that there was only one ATPS region in the both systems,and the system with PS showed a peculiar inversion of ATPS.As a function of composition,the volume ratio appeared a turn on its relation curve.It was surposed that one side of the turn was ATPS which contains cubic liquid crystal,the other dosen’t.When the ratio of top vulume to bottom volume was close to 1,the ATPS forming time was the shortest,and vice versa.
文摘The major objective of this experimental study is to investigate and compare the corrosion resistance of medium Carbon steel (MCS) and KS7 stainless steel in saline and sodium carbonate environments. The MCS and KS7 SS were exposed to 0.5 M each of NaCl and Na2CO3 solutions for a period of 36 days. The weight loss was taken every 3 days in order to evaluate CPR. The results obtained showed that KS7 SS generally offers a better corrosion resistance than the MCS in the selected media. While MCS is found to be inappropriate alloy in saline and sodium carbonate environments, KS7 SS is an unfailing choice material for manufacturing machines and other engineering amenities in which their service lives are predominant in Na2CO3 medium and fairly pleasing in NaCl environment.
