36results about How to "Reasonable viscosity" patented technology

Foams suitable for such uses as landfill coverage, frost protection, volatile emission control, gas control in mining, are composed of a hydrolyzable protein and a pre-gelatinized cationic modified starch along with other ingredients. The foam concentrate can be made at ambient temperature, is stable over time, can be easily tailored to achieve a desired foam stiffness and drain time characteristic over wide ranges, and can be easily diluted at ambient temperature to produce a foamable composition.

The invention discloses a grinding liquid used for grinding the back surface of a magnetic head of a memory hard disk, belonging to the technical field of surface superfine grinding. The grinding liquid contains the following components: mineral oil of eleven-carbon to thirteen-carbon alkanes, oily agent, diamond single crystal superfine powder, anti-oxidant and anti-corrosion agent, non-ionic surfactant, defoamer and antistatic agent, The weight ratio of each component is: alkane mineral oil: 50-94.79%; oily agent: 5-35%; diamond superfine powder: 0.01%-5%; anti-oxidant preservative: 0.02-0.5%; non-ionic Surfactant: 0.1-5%; defoamer: 0.03-1.5%; antistatic agent: 0.05-3.0%. The use of the grinding liquid can reduce the cost, improve the work efficiency and improve the surface grinding precision, the surface has no scratches after grinding, the surface residual stress is low, and the surface roughness is 0.3-0.4 nanometers.

The invention provides an inkjet nano-silver conductive ink and a preparation method thereof, comprising the following components: 12-30 parts of nano-silver, 55-80 parts of deionized water, 0.02-2 parts of cosolvent, and 0.1-2 parts of wetting and dispersing agent 1.0 part, binder 0.4-3.0 part, defoamer 0.2-0.6 part, humectant 3.0-10.0 part, leveling agent 0.01-0.5 part, anti-settling agent 0.3-1.5 part, viscosity modifier 0.5-0.6 part. The preparation method of conductive ink includes two steps: preparation of nano-silver powder and preparation of nano-silver conductive ink. The conductive ink in the present invention protects the silver from being oxidized during storage by adding a certain co-dispersant, and at the same time improves the stability of the nano-silver particles in water by adjusting the pH value of the system; Inhibits the ink solvent volatilization too fast and causes the nozzle to block, has good conductivity, adhesion and printing adaptability.

The invention relates to a light-weight self-curing electric insulation coating material, a preparation method and an electric power line, which comprises 50-80 parts of modified silicone resin, 5-7 parts of plasticizer, and 1-4 parts of crosslinking agent in parts by weight. 0.1-3 parts of titanate chelate, 1-8 parts of hydrophobic fumed silica, 10-30 parts of nano hollow microspheres, 0.2-2 parts of moisture scavenger, 0.5-2 parts of super wear-resistant carbon black , 1 to 3 parts of adhesion promoter and 0 to 1 part of antifungal agent; the modified silicone resin contains at least 2 alkoxy functional groups, and the number average molecular weight of the modified silicone resin is 70000 ~120000. The insulating coating material of the present invention is light in weight and has a density of only 0.9-1.0 g / cm 3 , will not excessively increase the force load of the original tower rod, and will not cause the wire to sag.

The present invention relates to a high-bandwidth bending insensitive multimode optical fiber. The high-bandwidth bending insensitive multimode optical fiber comprises a core layer and claddings surrounding the core layer. The refractive index cross section of the core layer is in the shape of a parabola. The high-bandwidth bending insensitive multimode optical fiber is characterized in that the claddings include an inner cladding, a first recessed cladding, a second recessed cladding and an outer cladding which are distributed sequentially from inside to outside; the unilateral radial width (R2-R1) of the inner cladding ranges from 1 to 3 microns, and the relative refractive index difference delta 2 of the inner cladding ranges from -0.2% to 0.05%; the unilateral radial width (R3-R2) of the first recessed cladding ranges from 3 to 8 microns, and the relative refractive index difference delta 3 of the first recessed cladding ranges from -0.9% to 0.3%; the unilateral radial width (R4-R3) of the second recessed cladding ranges from 6 to 30 microns, and R4 is smaller than or equal to 58 microns, and the relative refractive index difference delta 4 of the second recessed cladding ranges from -0.15% to 0.01%; and the radius R5 of the outer cladding ranges from 60 to 65 microns, and the relative refractive index difference delta 5 of the outer cladding ranges from -0.15% to 0.15%. The optical fiber of the invention has the advantages of reasonable material composition and structural design, convenient process control, improved and reduced inner stress distribution, enhanced bending resistance and increased bandwidth.

The invention provides a preparation process of a conductive circuit of a glass-based circuit board. The preparation process comprises the steps of preparing special conductive silver paste from a special conductive material, an organic adhesive and an inorganic additive according to a mass ratio; scraping the special conductive silver paste onto a glass substrate through a hollow part on a titanium alloy printing plate; performing low-temperature drying at 150-200 DEG C for 5-15 minutes; and performing heating to 500-750 DEG C, keeping the temperature for 2-8 minutes, and performing cooling to the room temperature. According to the preparation process of the conductive circuit of the glass-based circuit board, the titanium alloy printing plate is used for replacing a traditional silk-screen printing plate to realize a printing paste scraping process of the circuit board in the coating step; the circuit thickness of the glass-based circuit board can reach 18-35 microns; the paste is smooth; the edge is neat; no air holes are generated; and the circuit performance is improved by about 1 time compared with that of a traditional process.

The invention relates to an oil-based lubricating composite and a preparation method thereof, in particular to a water-based copper and aluminum wiredrawing oil composite and a preparation method thereof. The water-based copper and aluminum wiredrawing oil composite comprises base oil, an emulsifier, an auxiliary emulsifier, a defoaming agent, a rust-proof agent, an antiseptic and an antiwear agent. The preparation method comprises the following steps of: configuring the water-based copper and aluminum wiredrawing oil composite into 3 percent to 45 percent water-based emulsion according to weight percentage; and spraying the water-based emulsion into a wiredrawing die cavity in the copper and aluminum wiredrawing process. The water-based copper and aluminum wiredrawing oil composite has the advantages of excellent lubricating property, great optimal light stability and storage stability, low cost, good cooling effect, fast heat transfer, little temperature increase in the using process, difficult combustion and easy cleaning and ensures the safety of the service environment; and in addition, a copper wire and an aluminum wire drawn by the method have the advantages of uniform wire shape, bright surfaces, difficult corrosion, good ultraviolet and storage stability and good stability.

A modified high density brine for use in subterranean drilling and completion operations. The modified high density brine includes the addition of high density particle addition that can optionally be surface-modified. The resultant modified high density brine eliminates the need for toxic, corrosive, and costly ZrBr2 additions or other ionic additives to boost the density of the modified high density brine to 15-17 lbs. / gallon or greater.

The invention discloses a continuous casting method of aluminum-containing peritectic high-strength automobile steel, which comprises: opening a stopper rod, an upper nozzle and three channels between plates in a tundish during the molten steel pouring process of aluminum-containing peritectic high-strength automobile steel Argon blowing; mold flux is used for protective pouring, and the chemical composition of mold flux includes: Al 2 o 3 : 1.2%~1.6%, CaO: 35%~45%, SiO 2 : 30%~35%, F: 8%~12%, Na 2 O+K 2 O: 1.0% to 2.0%, MgO: 0.8% to 1.0%, C: 4% to 6%. The process is used to control the heat flux density of the meniscus region of the crystallizer to 1.0-2.0MW·m ‑2 ; The continuous casting machine adopts the preset casting speed to pull out the billet of aluminum-containing peritectic high-strength automobile steel; the second cooling section of the continuous casting adopts the second preset weak cooling process. Through the above scheme, the surface cracks and bonding defects of the slab are significantly reduced.

The invention relates to the field of secondary battery and particularly provides an electrolyte solution for a sodium-ion battery, a preparation method and a sodium-ion battery comprising the electrolyte solution for the sodium-ion battery. The electrolyte solution for the sodium-ion battery comprises an electrolyte and a solvent, wherein the electrolyte mainly is sodium nitrate; and the polarityof the solvent is greater than or equal to 4. The electrolyte solution has the advantages of being low in price, high in security, low in sensitivity to moisture and low in requirement on the batterypreparation environment. The sodium-ion battery comprising the electrolyte solution for the sodium-ion battery has the advantages of being high in charge-discharge efficiency, good in cycle performance, high in security, wide in operating temperature range and low in cost.