57results about How to "Fully aggregated" patented technology

Articles, including fiberboard, are made from a pumpable, flowable slurry including alpha-calcined calcium sulfate hemihydrate anchored in pores of host particles, alpha-calcined calcium sulfate hemihydrate, a silicone compound, magnesium oxide, and water. The magnesium oxide catalyzes the reaction of the silicone compound into a silicone resin. In a preferred method of making a water resistant fiberboard calcium sulfate dihydrate is combined with the host particles and water to form a slurry which is heated under pressure to calcine the calcium sulfate dihydrate to form alpha-calcined calcium sulfate hemihydrate. After relieving the pressure, a silicone compound and magnesium oxide are added to the slurry. The slurry is dewatered to form a filter cake, which is then formed into a desired shape and allowed to set.

A preparation method of a carbon aerogel thermal insulation material comprises the steps as follows: 1) preparing phenolic prepolymer sol with an acid-base two-step method; 2) preparing organic gel with a solvothermal method; 3) preparing organic aerogel with a normal-pressure drying technology; 4) preparing carbon aerogel with a carbonization cracking technology. Linear phenolic molecules are linked and woven into an isotropic 3D network structure with hexamethylene tetramine as a crosslinking point on the nanoscale with the acid-base two-step method which firstly adopts acid catalysis and then alkaline crosslinking, the framework strength is improved, and the crosslinking degree and uniformity of the framework structure are increased. By the aid of the solvothermal method, the gel polymerization reaction is accelerated, the technological period is shortened, and the gel polymerization reaction is fully conducted, so that the crosslinking degree and strength of the nano network framework are enhanced. The method is simple, efficient and low in cost, the problems of long preparation period and high cost of traditional technologies and higher shrinkage in a normal-pressure drying technology are solved, and the obtained carbon aerogel thermal insulation material has high mechanical strength and low heat conductivity.

The invention discloses PVC (polyvinyl chloride) foamed artificial leather and a preparation method thereof. The PVC foamed artificial leather comprises a fabric base material, a foaming layer and a surface layer which are attached from inside to outside sequentially, wherein the foaming layer comprises components in parts by weight as follows: 95-105 parts of PVC resin, 75-85 parts of filling powder, 75-85 parts of a plasticizer, 3.5-4.0 parts of a stabilizer, 4.5-5.5 parts of a foaming agent and 9.5-10.5 parts of masterbatch; the surface layer comprises components in parts by weight as follows: 65-75 parts of PVC resin, 6-8 parts of filling powder, 46-52 parts of a plasticizer, 1.5-3 parts of a stabilizer and 4.5-5.5 parts of masterbatch. The preparation method comprises steps as follows: (1), blending; (2), mixing, open milling and filtering; (3), calendering attachment; (4), cooling; (5), foaming; (6), embossing, cooling and rolling-up to obtain a finished PVC foamed artificial leather product. The artificial leather prepared with the method feels good, and is good in texture, high in breathability and good in wear resistance.

The present invention discloses a technology for preparing hybrid flocculant by gangue base raw material and a hybrid flocculant prepared by the same. The steps of the technology are as follows: preparing the hybrid flocculant by the gangue base waste residue; during the process of synthesis, preparing the gangue base raw material and stirring together the modified gauge base filter residue and acrylamide after alkali and acid extraction; performing vacuum-pumping to pass nitrogen; and adding an initiator to perform polymerization, so as to obtain the gray viscous hybrid flocculant in a gel state. Compare with the prior art, the gangue waste residue of the technology can be fully used, and thus the waste control by waste is realized. The obtained hybrid flocculant has advantages of a strong flocculation ability, high sedimentation speed and high compactness. COD and BOD removal rate of the technology is much higher than that of a single polyacrylamide system and a simple mixture of modified gauge base filter residue and polyacrylamide. The technology also has advantages of less quantity of reagent, relatively higher processing efficiency of waste water of drilling well and coalification, and obviously higher removal efficiency of water turbidity and chroma.