11 results about "Peroxide" patented technology

The invention provides a hydrogen-peroxide high-efficiency utilization method and apparatus for desulphurization and denitration of low-temperature flue gas. According to the method, hydrogen peroxide is fed in the form of gas in the process of desulphurization and denitration of low-temperature flue gas via hydrogen peroxide. The apparatus comprises a hydrogen peroxide storage tank, a feed pump, a flue and an absorbing tower. The apparatus is characterized in that hydrogen peroxide is converted to a gaseous state after treatment by a device for feeding liquid hydrogen peroxide after direct heating and vaporization of liquid hydrogen peroxide, or a device for feeding hydrogen peroxide after bubbling of hot carrying gas in hydrogen peroxide, or a device for feeding hydrogen peroxide carried by hot carrying gas or a device for feeding atomized hydrogen peroxide carried by hot carrying gas; the gaseous hydrogen peroxide then enters the flue; and the gaseous hydrogen peroxide and hydroxyl radicals therein are used for desulphurization and denitration reactions. The method and apparatus provided by the invention changes a conventional liquid-gas mixed reaction into a gas-gas mixed reaction. Compared with liquid hydrogen peroxide, more hydroxyl radicals can be produced through decomposition in the process of vaporization of hydrogen peroxide, so the utilization rate of hydrogen peroxide and the removal rate of NOx are improved, and the usage amount of hydrogen peroxide is reduced.

The invention provides hydrophobicity-enhanced heat-vulcanized silicone rubber and a preparation method thereof. The specific preparation method of the silicone rubber comprises steps as follows: divinyltetramethyldisiloxane is mixed with a mixed solution of concentrated hydrochloric acid, deionized water and ethanol, the mixture is mechanically stirred, ethyl orthosilicate is dropwise added, the mixture is subjected to hydrolytic condensation, methylbenzene is added for extraction and layering, methyl vinyl silicone resin is obtained, crosslinked polyethylene particles are added to the methyl vinyl silicone resin, the mixture is stirred uniformly and subjected to molding curing and vacuum heat treatment, and the polyethylene particle crosslinked methyl vinyl silicone resin is obtained; nano-montmorillonite, amorphous alumina and titanium dioxide are added to a polydimethylsiloxane prepolymer, the mixture is mixed and subjected to crosslinking and curing, and a reinforced material coated with organic silicone rubber is obtained; the polyethylene particle crosslinked methyl vinyl silicone resin, the reinforced material coated with organic silicone rubber, 2,4-dichlorobenzoyl peroxide, diphenyl silanediol and octamethylcyclotetrasiloxane are mixed uniformly, left to stand, subjected to open milling and secondary vulcanization, and the hydrophobicity-enhanced heat-vulcanized silicone rubber is obtained.

The invention relates to a masterbatch consisting essentially of an ethylene copolymer (A) and at least one ethylene comonomer having at least one polar group, an organic peroxide (B), and an anti-oxidant (C), the organic peroxide (B) accounting for 0.2 to 100 parts by weight, for 100 parts by weight of the copolymer (A), and the anti-oxidant accounting for 0.02 to 50 parts by weight, for 100 parts by weight of the copolymer (A). The invention also relates to methods for preparing the masterbatch and to the uses of said masterbatch for manufacturing insulating layers for electric cables and for limiting or preventing the water tree phenomenon for electric cables.

The invention discloses a vascular stent containing a biodegradable polymer coating, which belongs to the medical field. The preparation method is as follows: step 1, inserting the bacterial strain into a medium for cultivation, and culturing at 25-30°C for 40 hours; Step 2. Inoculate the above-mentioned culture solution into the fermentation medium according to the inoculation amount of 5%, and cultivate it at 25-30°C for 48 hours; Step 3. Centrifuge the above-mentioned fermentation solution for 20 minutes, collect the cells, and heat them in a water bath. Take the supernatant, drain the water, and prepare polylysine; step 4: dissolve 2-amino-3-p-hydroxyphenylpropionic acid monomer and peroxide initiator in an organic solvent to prepare a solution; Secondly, it is mixed with the prepared polylysine powder, and the mixture is grafted and modified by melt grafting reaction equipment to obtain polylysine grafted 2-amino-3-p-hydroxyphenylpropionic acid biodegradable polymer.