84results about How to "Play a role in dispersing" patented technology

The invention discloses a high-performance polycarboxylate water reducing agent. The polycarboxylate water reducing agent has a structural general formula shown as a structural formula (I). The invention further provides a preparation method of the high-performance polycarboxylate water reducing agent. Apart from a polyether macromonomer and an unsaturated carboxylic acid monomer, an unsaturated phosphate monomer is added to obtain a product, namely, the high-performance polycarboxylate water reducing agent having a phosphate structure. The polycarboxylate water reducing agent disclosed by the invention is safe and simple in preparation process, environmentally friendly, low in energy consumption, low in cost, and suitable for industrial large-scale production. In the structural formula (I), R1 is -H, -COO- or -CH2COO-; R2 is -H or -CH3; R3 is -H or -CH3; R4 is -H or -CH3; R5 is -H or -CH3; R6 is -CH2- or -CH2CH2-; X, Y, Z and n are integers; X=1-100; Y=1-100; Z=1-100; and n=22-53.

The invention discloses a crosslinking-type low-sensitivity ester-ether copolymerized polycarboxylate superplasticizer and a preparation method thereof. The crosslinking-type low-sensitivity ester-ether copolymerized polycarboxylate superplasticizer has the number-average molecular weight of 10000-100000 and has a structural formula as shown in the specification. Under the synergistic effect of various groups, the polycarboxylate superplasticizer formed by copolymerization of 4-hydroxybutyl-vinyl polyoxyethylene ether, unsaturated acid, unsaturated phosphomonoester and unsaturated phosphodiester has the advantages of high water-reducing rate, high slump loss resistance, high peaceability, mud-resistant property and low dosage sensibility.

The invention relates to the field of cement additives and provides a polycarboxylic acid super-fluidifying agent synergist compounded composition which is composed of polycarboxylic acid, alcohol amine and water, wherein the mass ratio of the polycarboxylic acid to the alcohol amine is 1:2-10 and the adding amount of the polycarboxylic acid is 0.02-0.12%. Because that the mass ratio of the polycarboxylic acid to the alcohol amine is 1:2-10, a compound problem of the polycarboxylic acid super-fluidifying agent with the alcohol amine can be solved successfully. By means of the polycarboxylic acid being less than the conventional use amount, wrapping of the polycarboxylic acid on the surface of cement granules can be reduced. By means of the alcohol amine being more than the conventional use amount, an adsorption, wrapping and dispersing effect can be achieved with combination of the polycarboxylic acid, so that excessive coagulation promotion is reduced, namely, a suitable early strength and water reduction effect can be achieved unexpectedly.

The invention discloses nano spherical lithium hydroxide and a preparation method thereof. The nano spherical lithium hydroxide and the preparation method thereof are characterized in that the particle size of primary particles of the lithium hydroxide nanospheres is 10-600nm, the particle size D50 of laser particle size test is 50-2000nm, the purity of the lithium hydroxide nanospheres is greaterthan 99.7%, and the balance is 0.01-0.2% of non-polar organic matters and a proper amount of impurities. According to the nanospheres, a lithium hydroxide solution is matched with a non-polar organicsolvent and an ionic surfactant with a hydrophobic group according to a certain proportion to form stable water-in-oil, namely the structure is a structure that an organic matter wraps a water phase(W/O), the solution system is enabled to form emulsion liquid beads with nanometer and micrometer sizes, then, the lithium hydroxide of the liquid beads can be dried in the spraying process to separate out spherical nanoparticles, and in the drying process, a small amount of non-polar organic matters are remained, so that the dispersity of the lithium hydroxide nanospheres is improved, the hardening of the lithium hydroxide particles is favorably prevented, and the better physical morphology and size of the lithium hydroxide nanospheres are maintained.

The invention is suitable for the field of industrial material flushing, and provides a flushing and filter pressing integrated device. A horizontally arranged stirring device of the flushing and filter pressing integrated device drives a material to be flushed to roll up and down, and also achieves the function of dispersing the material, and the stirring effect is good. The material moving up isflushed by clean water sprayed from a high-pressure water nozzle. The material tumbles for several times to be flushed by the high-pressure water nozzle for several times. The flushing effect is thorough. After flushing for a certain period, a switch door is opened to press-filter the material. Wastewater is discharged into a wastewater tank through a filter screen and through holes in a filter press piston, the material is separated from the wastewater, and finally the press-filtered material is discharged from a central discharge pipe so as to reduce the residual wastewater or compounds ofthe material as much as possible. The material and the wastewater are completely separated.

The invention provides a high-performance compound polycarboxylate superplasticizer and belongs to the technical field of superplasticizers. The high-performance compound polycarboxylate superplasticizer is prepared from components in parts by weight as follows: 10-20 parts of a polycarboxylate superplasticizer, 1-4 parts of methacrylate, 2-3 parts of tertiary carbonic ester, 0.2-0.3 parts of N-oleoylsarcosine, 2-4 parts of hydroxypropyl starch ether, 1-3 parts of glycerin, 1-3 parts of sodium dodecyl benzene sulfonate and 15-25 parts of water. The high-performance compound polycarboxylate superplasticizer is a compound superplasticizer and has excellent water reducing performance, slump loss resistant property, dispersity and workability.

The invention relates to a preparation process of waterborne coating. The preparation process comprises the following specific steps of base material selection, first-time stirring, grinding treatment, auxiliary material selection, second-time stirring, filtration and screening, detecting, packaging and other procedures. According to the preparation process, the problems that in the production andmanufacturing process of existing waterborne coating, raw materials for manufacturing the waterborne coating need to be filtered and screened manually, smell emitted in the waterborne coating causeshuman body discomfort, the raw materials are filtered through manual control, consequently substandard raw material particles are prone to being mixed, the using effect of the waterborne coating is affected, the size of the raw material particles has the precise requirements, when the raw materials are filtered manually through filtering tools, sieving holes of the filtering tools are prone to being blocked by the large particles, the raw material filtering efficiency is affected, the waterborne coating manufacturing time is affected, when the filtering tools are controlled manually for sieving and filtering the raw materials, the raw materials are prone to being spilled in the jolting process, the closed filtering tools are selected, and consequently, clearing is troublesome after work can be solved.

The invention relates to the technical field of artificial stone and discloses a lightweight limesand brick and a production process. The raw materials of the lightweight limesand brick are composed of hard construction and industrial wastes, machine-made sand, medium-coarse sand, powdered wastes and binding materials. The production process comprises the following steps: 1, crushing various raw materials to obtain crushed particles; 2, taking out various crushed particles from a box and storing the particles in different bins; 3, stirring and mixing the various crushed particles with water soas to obtain a mixture; and performing compression molding on the mixture to obtain a brick body; and 4, steaming the brick body in steam, thereby obtaining the lightweight limesand brick. Accordingto the scheme, the problem that the conventional limesand brick is inconvenient to transport and use due to high weight is mainly solved.

The invention discloses a light source assembly. The light source assembly comprises a circuit board, a reflection assembly and multiple emitting diode chips. The reflection assembly comprises a reflection sheet and a reflection support. The reflection sheet is stacked between the circuit board and the reflection support. The circuit board is attached to the reflection support. The reflection support comprises a first surface, a second surface and multiple reflection ring surfaces. The first surface is opposite to the second surface. One ends of the multiple reflection ring surfaces are communicated with the first surface and multiple first openings are formed. The other ends of the multiple reflection ring surfaces are communicated with the second surface and multiple second openings are formed. The area of the first opening is smaller than that of the second opening. The multiple emitting diode chips are attached to the reflection sheet and accommodated into the multiple first openings in a one-to-one correspondence mode. The light source assembly adopts LEDs and has uniform illumination brightness. The invention further discloses a backlight module.

The invention discloses an automatic screening device for neodymium iron boron magnetic powder and an automatic screening method thereof. The automatic screening device comprises a screening barrel, adispersing mechanism, a deviating mechanism, a collecting mechanism, a detecting mechanism and a controller. The dispersing mechanism comprises a feeding pipe, a rotating cylinder, a cutting assemblyand a driving assembly. The deviating mechanism comprises a protection plate and a plurality of magnets. The collecting mechanism comprises a first collecting barrel, a first telescopic assembly, a plurality of second collecting barrels and a plurality of second telescopic assemblies. The detecting mechanism is used for detecting the collecting amount of the neodymium iron boron magnetic powder in the first collecting barrel and the second collecting barrels. The controller is used for adjusting the rotating speed of the rotating cylinder through the driving assembly according to the specificgravity of blocky powder balls in the neodymium iron boron magnetic powder per unit volume and a data corresponding relation in a preset specific gravity-rotating speed comparison table. The screening efficiency of the neodymium iron boron magnetic powder is improved. The caked neodymium iron boron magnetic powder can be cut up, so that the screening effect is improved, and the screening qualityand purity of the neodymium iron boron magnetic powder are guaranteed.

The invention discloses phase change energy storage material of microscale polyvinyl chloride coated sodium sulfate decahydrate and a preparation method of the phase change energy storage material. The material adopts phase change energy storage material of polyvinyl chloride coated Na2SO4.10H2O, the granularity is 100nm to 1.5um, the mass ratio of polyvinyl chloride to Na2SO4 is 15:400, and the product initial thermal value is larger than 190J/g. The preparation method comprises the following steps: firstly, putting polyvinyl chloride and tetrahydrofuran in a container, stirring the polyvinyl chloride and the tetrahydrofuran into clear solution 1, with the ration being 1.15g/20ml; secondly, preparing the pour Na2SO4 into saturated solution, stirring while dripping mixed solution of oleic acid and absolute ethyl alcohol into a water bath at 16 to 20 DEG C, so as to obtain microscale Na2SO4.10H2O solid, thirdly, performing centrifugation to remove liquid, and fourthly, adding the solution 1 into the solid obtained in the third step, and performing air seasoning at 25 DEG C, so as to obtain the phase change energy storage material. The phase change energy storage material has high latent heat, and is simple to prepare and environmentally friendly.

A DC motor having a plurality of sealed housing structures is disclosed, including a housing body, a securing cover, a protective plate, a tightening block and a heat sink, the outer side of the housing body is provided with heat dissipation ribs, and the bottom end of the housing main body is provided with a housing fixing seat, the fixing cover is arranged on the right side of the housing main body through fixing bolts, the protective plate is arranged inside the placing groove through fixing bolts, the jacking block bearing is connected with the lower end of the screw rod, and the screw rodis threadably connected with the top of the housing body. The heat dissipation port is located at the left end of the housing main body. The inside of the housing main body is provided with a motor fixing seat, and the lower end of the motor fixing seat is connected with a sliding groove, and the sliding groove is located above the housing fixing seat. A DC motor with a plurality of sealed housing structures set a motor fixing seat inside the housing body in a slidable pullout form, facilitates installation of the motor on the motor fixing seat, and protects the motor.

The invention discloses a novel integrated connected and self-melting PE pipe, and belongs to the technical field of PE pipes. Only two sections of pipelines need to be aligned and matched during buttjointing, the connection action is triggered by magnetic attraction, through the automatic extension and the internal exothermic effect of an extending tentacle air bag, a ball filled in advance is released and hot-melted, through a melt assisting ball arranged on a magnetic suction tentacle column, the temperature is used as the melt assisting power to force an internal microseismic balloon to be in contact with the high-temperature surface to produce a small explosion impact, and force a melt assisting heat conducting needle to vibrate in a hot-melt plastic with high frequency. On the on hand, the heat conductivity efficiency of the magnetic suction tentacle column to the resin ball is improved, on the other hand, the hot-melt plastic can be stirred and mixed in the overall situation scope, the fluidity of the hot-melt plastic is improved, thus the degree of uniformity and strength after curing are improved, the integrated and high-strength connection of the two sections of pipelines is effectively conducted, the butt-jointing efficiency and simplicity of the pipelines are greatly improved, and the novel integrated connected and self-melting PE pipe is especially suitable for the pipeline butt-jointing in narrow environment.