7results about How to "Moderate fluidity" patented technology

The invention relates to the technical field of propylene dimerization catalysts, and discloses a propylene dimerization catalyst, a preparation method thereof and a method for preparing 4-methyl-1-pentene through propylene dimerization, the preparation method comprises the following steps: (1) mixing alkali carbonate, graphite fluoride, methylcellulose and potassium stearate, and carrying out molding and molding roasting to obtain a carrier; wherein the mass ratio of the alkali carbonate to the graphite fluoride to the methyl cellulose to the potassium stearate is 100: (0.5-5): (0.1-20): (0.1-30); (2) loading an active metal on the carrier; wherein the active metal is selected from sodium and / or potassium. The catalyst prepared by the preparation method has high propylene conversion per pass and high 4M1P selectivity.

The invention discloses a mine environment ecological restoration system, and relates to the technical field of environment ecological restoration, and the technical scheme is that the mine environment ecological restoration system comprises a spray-seeding frame body, the upper part of the spray-seeding frame body is fixedly connected with a feeding port, the interior of the spray-seeding frame body is fixedly connected with a mixing box, the interior of the mixing box is fixedly connected with a sieve plate, and the upper part of the spray-seeding frame body is provided with a first motor; the output end of the first motor is provided with a first transmission wheel, the first transmission wheel is in transmission connection with a transmission belt, the transmission belt is in transmission connection with a second transmission wheel, and the second transmission wheel is fixedly connected with a first eccentric shaft. In the soil adding stage, a first motor is started to drive a first transmission wheel to rotate, the first transmission wheel rotates to drive a second transmission wheel and a worm wheel to rotate synchronously, and the second transmission wheel rotates to drive a pressing pad to move in a reciprocating mode, so that soil is continuously pressed downwards, and cakes in the soil are effectively crushed.

The application discloses instant flower glue with high elasticity and high glycosaminoglycan retention rate and a preparation method thereof. After cleaning and steaming of the flower glue, the flower glue is soaked in water below 20 DEG C, then mixed and dissolved with donkey-hide gelatin instant powder, milk and granulated sugar, sealed, filled and sterilized, and finally cooled by water cooling, with the cooling rate controlled within 10-15 DEG C / min, so that the center temperature of the product is steadily decreased to 25+ / -0.5 DEG C, and the instant flower glue is prepared. The instant flower glue prepared by the method has excellent texture characteristics, Q elastic and smooth, and does not stick to teeth. The flower glue has good water retention, and the proportion of free water is as high as 85% or more. Most importantly, the method maximally retains glycosaminoglycan in the flower glue, and the degradation of active ingredients such as chondroitin sulfate is reduced, and the dry base content is high.

This invention discloses a formaldehyde-free adhesive for plywood with a long drying time, its preparation method, and its application. The preparation method includes the following steps: 1) Preparing modified isocyanate: Castor oil and polyisobutylene are stirred and mixed at 60-90°C to obtain a mixture, preferably with a stirring time of 0.5-2 hours; a polyfunctional isocyanate is added to the mixture, and after reacting for 2-4 hours, the mixture is cooled to obtain modified isocyanate; 2) A mixture of water, flour, and a composite water-retaining agent is mixed with the modified isocyanate to obtain the adhesive. The above method is used to provide a formaldehyde-free adhesive for plywood with a long drying time.

The utility model discloses an atomization oil injection system of a horizontal double-shaft paddle mixer, which relates to the field of feed mixers, and adopts the technical scheme that the atomization oil injection system comprises the double-shaft paddle mixer, the double-shaft paddle mixer comprises a shell, the top of the shell is provided with a feed inlet, a stirring cavity is arranged in the shell, stirring paddles are arranged in the stirring cavity, and the feed inlet is communicated with the feed inlet. Two sliding rods are fixedly arranged in the part, located on the upper portion of the mixing cavity, of the shell, each sliding rod is provided with a sliding block in a sliding mode, an oil pipe is fixedly arranged on the two sliding blocks, two rows of atomizing nozzles are arranged on the oil pipe, and each row of atomizing nozzles face one stirring blade; one end of the oil pipe is connected with a hose which is connected with an oil storage tank. The feeding device has the advantages that the oil spraying pipe automatically laterally moves to avoid the feeding port during feeding, the material impact risk is thoroughly eliminated, and spraying coverage is guaranteed after resetting and accurate centering.

The application relates to the technical field of construction materials, in particular to a resin concrete and application of the resin concrete in electrolytic cells. The epoxy resin concrete comprises the following components: a phenolic epoxy resin; an epoxy-terminated hydrogenated butyronitrile rubber; a modified alicyclic amine curing agent; a graded spherical silicon carbide micro powder; and a silicone defoaming agent; wherein the graded spherical silicon carbide micro powder is composed of coarse powder, medium powder and fine powder; the coarse powder accounts for 60% of the total mass of the graded spherical silicon carbide micro powder, the medium powder accounts for 25%, and the fine powder accounts for 15%. The phenolic epoxy resin without ester bonds is used in cooperation with the epoxy-terminated hydrogenated butyronitrile rubber with a saturated main chain to solve the problems of easy degradation under high-temperature acid and alkali environments and insufficient weather resistance of traditional toughening agents, the graded spherical silicon carbide micro powder is used to improve the mechanical properties of the electrolytic cell, and the construction fluidity requirement is met.

This disclosure provides a safety coating slurry, a current collector, and a method for preparing the same, as well as a battery, belonging to the field of battery materials. The safety coating slurry for the current collector, by weight, comprises 30-50 parts of polymer material, 1-5 parts of conductive agent, 10-30 parts of aqueous binder, 0.5-3 parts of aqueous dispersant, and 10-20 parts of solvent. The polymer material includes polyvinylidene fluoride-hexafluoropropylene. The coating slurry of this disclosure, when applied to the surface of the current collector, can increase resistance during battery short circuits, preventing overheating and explosion, thus improving battery safety; it also increases the bonding force between the active material and the current collector, preventing active material detachment, and the safety coating has stable chemical properties and is not easily cracked, further increasing safety and battery performance; the coating uniformity and thickness can be precisely controlled. This solves the technical problems of existing safety coatings, such as difficulty in controlling uniformity and thickness, easy detachment of active materials, and susceptibility to cracking during use.