Abstract
Modern Applied Science, Vol. 1, No. 3, September 2007, all in one file
Highlights
The ethoxylation of aliphatic alcohol depicted in Scheme 1 has been utilized for the commercial production of non-ionic surfactants
The synthesis of polyester-polyether type block copolymer has attracted much attention, because they can be used in future medical applications in implantation and wound treatment, and as controlledrelease drug carriers (Suh H, Jeong BM, & Rathi R, 1998:336; Jeong BM, Bae YH, & Lee DS, 1997:860; Choi SW, Choi SY, & Jeong BM, 1999:2305)
The modifying Mg/Al composite catalyst was prepared which is very active for narrow-range ethoxylation of ethanol
Summary
The ethoxylation of aliphatic alcohol depicted in Scheme 1 has been utilized for the commercial production of non-ionic surfactants. As a result of increased load capacity, conveyor belt scratched by barriers and aging, the steel wire rope comes into being tarnishing and cracking steel core or the joint is elongated. Where goes wrong, it can bring into grave worksite/serious accidents, huge economic losses and casualties, and put back safe production badly. Our country has developed conveyor belt detection equipment by this principle This method can just detect resultant curve, substantially detect fracture place and degree of steel wire ropes of conveyor belt, can not directly display inner image of steel wire ropes.
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