77results about How to "Achieve chemical bonding" patented technology

The invention belongs to the technical field water-proof materials of buildings and particularly discloses a tear-free self-adhesive rubber waterstop belt and a preparation method of the tear-free self-adhesive rubber waterstop belt. The invention adopts the major technical scheme that the rubber waterstop belt comprises a rubber base material, as well as a high polymer self-adhesive layer and an isolation layer that are pasted on one side face of the base material. The rubber base material is prepared from natural rubber, ZnO, stearic acid, an antiager, a reinforcing agent, operating oil, functional filling and a valcanizer via an extrusion technology, the high polymer self-adhesive layer is formed by melting SBS (styrene-butadiene-styrene) or / and SIS (styrene isoprene styrene) resin softening oil, an antiager, an reinforcing agent, operating oil, functional filling and an antioxidant via a stirrer, and the isolation layer is formed by stirring and mixing natural zeolite, metakaolin, wollastonite and stearic acid, and then the prepared high polymer self-adhesive layer and the isolation layer are applied on the rubber base material for calendering to form the belt. The waterstop belt has the self-adhesive layer which is securely connected with a concrete boundary layer, greatly improves adhesion between the rubber waterstop belt and concrete, and effectively solves the problems of water leakage and dampening of an expansion joint, a deformation joint and a construction joint.

The invention discloses impervious cement mortar, comprising cement, mortar, water, recycled aggregate or reinforced recycled aggregate, and a water reducer. A nano material is well combined with a polymer to obtain nano composite polymer slurry; the nano composite polymer slurry is used to reinforce the recycled aggregate that is effectively combined with cement, so that interfacial setting performance is enhanced; the recycled aggregate is also subjected to surface reinforcement so that the impervious cement mortar with excellent comprehensive performance is attained.

The invention discloses a diamond grinding tool of a ceramic-metallic bond and a preparation method of the grinding tool. The preparation method comprises the following steps of: firstly, preparing the ceramic-metallic bond by ball milling the following components in percentage by weight: 40 to 50 percent of silicon dioxide (SiO2), 8 to 15 percent of aluminium oxide (Al2O3), 12 to 20 percent of diboron trioxide (B2O3), 3 to 6 percent of lithium oxide (Li2O), 6 to 12 percent of sodium oxide (Na2O), 3 to 6 percent of potassium oxide (K2O), 2 to 8 percent of zinc oxide (ZnO), 1 to 10 percent of titanium (Ti) and 1 to 5 percent of aluminium (Al); secondly, mixing the ceramic-metallic bond with a diamond abrasive to obtain a mixed material, and then adding 3 to 5 mass percent of wetting agent into the mixed material to obtain a raw material of the grinding tool; and finally, carrying out hot-forming and cooling de-moulding on the raw material of the grinding tool respectively to obtain thediamond grinding tool of the ceramic-metallic bond. The diamond grinding tool of the ceramic-metallic bond provided by the invention has the advantages of the diamond grinding tool of a metallic bondand the grinding tool of a ceramic bond.