105 results about "Lauroyl peroxide" patented technology

The invention discloses a high-tensile-strength power transmission cable comprising four circular conductive units and one hollow micro-tube used for embedding of an optical fiber. Each conductor unit comprises a conductive wire core and an insulating layer which wraps the external surface of the conductive wire core, wherein the conductive wire core and the insulating layer are arranged from inside to outside in turn. The four circular conductive units are arranged along the circumferential direction of the hollow micro-tube. A wrapping tape wraps the external surface of the four circular conductive units. The external surface of the wrapping tape is wrapped by an internal sheath layer. An armored layer wraps the external surface of the internal sheath layer. The external surface of the armored layer is wrapped by an external sheath layer. Maleic anhydride grafted amorphous polyolefin is prepared in a way that amorphous polyolefin, maleic anhydride, lauroyl peroxide and ethylene bisstearamide are put into a double-screw extruder according to the proportion of 100:0.4-3:0.03-1:0.1-0.3 through graft polymerization The situation that common air blowing laying is only suitable for parallel laying can be overcome, air pressure of the air compressor can be increased and finally the bending air blowing laying function can be realized.

The invention relates to an ageing oil demulsifier and a preparation method thereof, and belongs to the technical field of petroleum processing. The ageing oil demulsifier comprises mixed acid, a demulsifier monomer and an initiator, wherein the mixed acid consists of acrylic acid and maleic anhydride based on the molar ratio of (1-3): (0.5-1.5); the molar ratio of the mixed acid to the demulsifier monomer, namely, alkyl phenolic resin-polyoxyethylene polyoxypropylene ether, is (0.5-1.7): (0.5-1.5); the initiator, namely, lauroyl peroxide, accounts for 8 to 12% of the mass of the mixed acid. The preparation method comprises the following processes: adding the initiator, namely lauroyl peroxide to mixed acid and demulsifier monomer, namely alkyl phenolic resin-polyoxyethylene polyoxypropylene ether; polymerizing for 1 to 4 hours under a temperature of 70 to 100 DEG C; heating to reach 100 to 150 DEG C; esterifying for 3 to 7 hours to obtain the ageing oil demulsifier. The ageing oil demulsifier has the characteristics of being simple in components, simple in process, convenient, fast and efficient to prepare, low in cost, small in dosage, small in toxic and side effects, wide in application scope, good in demulsifying effect, etc.