166results about How to "Easy to achieve industrial scale production" patented technology

The invention relates to a residual oil hydrogenation catalyst and a preparation method thereof; 1) a mixed body of alumina and activated carbon is used as a carrier, the weight of activated carbon in the carrier accounts for 5-35%, and the weight of alumina accounts for 65-95%; 2) the activity of the catalyst is Component content is based on the total weight of the catalyst as 100%, Ni 2 P is 1~14%, MoO 3 and / or WO 3 3-8%, and / or CoO and / or NiO 1-5%, the rest is carrier; 3) Pore volume is 0.3-1.0ml / g; 4) Specific surface is 50-280m 2 / g; A small amount of activated carbon was introduced into the alumina to reduce the Ni 2 The reaction of P active component with alumina during the formation process improves its dispersibility and makes full use of Ni 2 The high activity of P and the carrier advantages of alumina-activated carbon kneading body can further improve the catalyst's ability to desulfurize, carbon residue and other impurities.

The invention belongs to the toughening and modifying field of polymer composite materials, in particular relates to a method for toughening and modifying a rigid polyvinyl chloride composite material and aims at obtaining a graphene / polyvinyl chloride composite material and solving the performance defect of poor toughness of the rigid polyvinyl chloride material. A graphene carbon nanomaterial is evenly dispersed in a polyvinyl chloride matrix, a soft lamellar structure of the graphene capable of curling and bending in the polyvinyl chloride matrix serves as an elastic particle phase so as to play a role of toughening and modifying the polyvinyl chloride. Polyvinyl chloride powder, a stabilizer, a modifier acrylate and the graphene carbon nanomaterial are premixed in a high-speed stirrer to obtain the graphene / polyvinyl chloride composite material by using a process of melt bending through a torque rheometer and a two-roll mill and a process of hot pressing molding through a flat vulcanizing machine. According to the method for toughening and modifying rigid polyvinyl chloride, the soft and curly graphene layer plays a role of elastic particle in the polyvinyl chloride, so that the breaking elongation and the notch impact strength of the polyvinyl chloride can be obviously improved.