30results about How to "With enhanced" patented technology

The invention discloses a multifunctional premix mortar thickening material and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out drying pretreatment on bentonite, kaolin and fly ash; (2) after premixing the bentonite, kaolin and fly ash obtained in the step (1) with surfactant and calcium sulfate, grinding in a grinding machine; and (3) adding hybrid modified rubber powder and the raw material obtained in the step (2) into a mixing machine, and mixing to obtain the multifunctional premix mortar thickening material. By producing the thickening material mainly from inorganic materials by a grinding technique, the invention can ensure the bonding reaction of the inorganic powder materials with the surfactant and modifier, thereby forming a novel organic / inorganic composite mortar additive; and besides, the added nano hybrid modified scrap rubber powder can effectively enhance the water permeation resistance of the mortar, improve the freezing resistance and heat-insulating property of the mortar, and enhance the strength of the mortar.

The invention discloses a halogen-free flame-retardant dicyclopentadiene material and a preparation method thereof. The material consists of polydicyclopentadiene, flame retardant, modifier and catalyst, wherein the flame retardant is silane coupling agent, titanate coupling agent, aluminium zirconate coupling agent, organic chromium coupling agent, higher fatty acid and salt thereof, phosphate, unsaturated organic acid or organic ammonium salt modified aluminium hydroxide. The preparation method prepares the flame-retardant material by using reaction injection moulding. The oxygen index of the obtained material is 22 to 26 percent, and the horizontal combustion test can reach HB level; and the bending strength is 40 to 45MPa, the bending modulus is 1,400 to 1,700MPa, the tensile strengthis 34 to 37MPa, the impact strength is 26-80kJ / m<2>, and the hardness is 74 to 76 Shaw D. The material does not contain halogen flame retardant, and has high flame-retardant performance and high mechanical property.

The invention relates to a cement-based high-performance anchoring agent. The anchoring agent is uniformly prepared by mixing and stirring the following raw materials in parts by weight: 350-440 parts of sulphoaluminate cement, 250-400 parts of ordinary Portland cement, 5~10 parts of special water reducing agent, 170~285 parts of sand, 15~25 parts of low alkali expansion agent, 3~7 parts of early strength agent. The invention has strong anchoring force, is not easy to dry shrinkage, has good durability, low cost, and is easy to realize industrialized production.

The invention discloses a volume stabilizer for a cement-based composite material and a preparation method thereof. The volume stabilizer comprises the following components in part by weight: 180 and 220 parts of periclase, 18 to 21 parts of polycarboxylate, 27 to 32 parts of polyacrylate and 0.8 to 1.1 parts of sodium polyphosphate, wherein the periclase is ground into fine powder; the fine powder is sieved by a 85mu m sieve; and residue on the sieve is less than 10 percent. The method comprises the following steps: a, grinding magnesite serving as raw materials into fine power and sieving the fine powder with the 85mu m sieve, wherein residue on the sieve is less than or equal to 10 percent; b, calcining the ground magnesite powder at the temperature of between 900 and 1,250 DEG C, preserving the heat for 30 to 120 minutes, and cooling the calcined magnesite powder to room temperature after the heat preservation is finished to prepare the periclase; c, grinding the periclase into fine powder and sieving the fine powder with a 85mu m sieve, wherein residues on the sieve is less than or equal to 10 percent; and d, mixing the periclase obtained in the step c, the polycarboxylate, the polyacrylate and the sodium polyphosphate in proportion. The volume stabilizer and the preparation method can solve the problem of cracking of cement-based materials caused by contraction.

Disclosed modified calcium carbonate with good elasticity is characterized by being prepared from the following raw materials in parts by weight: 85-90 parts of calcium carbonate, 5.5-7 parts of polyvinyl chloride, 5-7 parts of transparent ABS, 4-6 parts of synthetic rubber, 2-3 parts of calcium carbide slag, 1.5-2.5 parts of crude aggregate, 3-5 parts of teflon, 2-3 parts of cationic starch, 2-3 parts of sulfonated lignin, and 2.5-3.5 parts of modified titanium dioxide. By adding transparent ABS and other macromolecular compounds, synthetic rubber and the like into calcium carbonate, calcium carbonate is substantially improved in rigidity, elasticity and stability, also has the characteristics of toughening, reinforcing and relatively good strength, and also is reduced in cost. The provided preparation method is simple and convenient to operate, and is easy to industrialize. The produced filling material is applicable to coatings, rubber, plastic and the like.

The invention relates to a production method, in particular to a method for producing conductive geotextile. The method for producing the conductive geotextile comprises the steps of raw material selection, raw material screening, drying, fusion, spinning, cross air blow cooling, airflow drafting, swinging, net laying, mixed even feeding of metal fibers, carbon fibers and other short fibers, ironing conducted by a hot roller, shaping conducted by a pre-needle machine, reinforcing shaping conducted by a first main needle machine, repair shaping conducted by a second main needle machine, cloth containing conducted by a cloth containing machine, trimming and rolling. The geotextile produced according to the method for producing the conductive geotextile has the protective performance, the isolating performance, the waterproof performance, the filtering performance and the like of traditional geotextile, further has the conductive characteristic and is a good electrode material. According to the method for producing the conductive geotextile, the production technology is stable, control over the thickness of a material is good, the control range of the puncture density is large and is 50 to 500 stitches / cm<2>, the controllable range of the permeability performance of the material is large and is (1.0-9.9)*(10<-1>-10<-3>)cm / s, the strength of the product is high, and the thickness reaches 20mm.

The invention discloses a modified optical cable wire reel and a preparation method thereof. For the modified optical cable wire reel, a nano-silicon nitride whisker is employed to perform technical treatment on ordinary engineering plastic nylon 6 by a nanotechnology, and the modified nylon 6 has the characteristics of reinforced strength, increased toughness, and resistance to aging for 10 years. The wire reel formed by injection moulding of the modified nylon 6 engineering plastic can load 500kg of optical cables, and after drop from a height of 1.6m, the wire reel does not crack and deform, its various properties do not change in a temperature ranging from -40DEG C to 70DEG C, and can be reused more than 10 times.

The invention relates to a method for preparing a sepiolite-tetraacicular zinc oxide whisker composite material. Sepiolite has extremely strong adsorption performance and good dispersion performance, and can be used as the carrier and skeleton of the tetraacicular zinc oxide whiskers in the present invention, and the respective performances do not affect each other. The preparation method is as follows: dissolve sepiolite in ethanol, methanol or hydrogen peroxide, stir evenly, separate and dry to obtain sepiolite powder; mix with zinc powder, dissolve in distilled water, ethanol, methanol, hydrogen peroxide, stir and mix uniformly; The separated solid mixture is dried in an oven; the dried powder is calcined in a high-temperature furnace to obtain a sepiolite-tetraacicular zinc oxide whisker composite material. The composite material prepared by the present invention has properties such as wear resistance, reinforcement, shock absorption, anti-skid, noise reduction, anti-aging, antistatic, antibacterial, etc., and can be widely used in coatings, antibacterial materials, antistatic materials, antifriction and antiwear, etc. Among the materials, the operation process is simple, and the cost performance is high.

The invention provides a multifunctional alumina / metal micro-laminated coating, which belongs to composite material made from metals and ceramic and coating technology thereof and is used for high-temperature protection, anti-tritium permeation, and anti-hydrogen damage of alloys with wide temperature scope. The micro-laminated coating adopts a high-pure alumina or alumina doped with a small amount of rear earth oxide, or alumina doped with a small amount of zirconia as an alumina coating, wherein the metals can be Pt, or Rh, or Ir, or Au, or alloys of all, or M-Cr-Al-rare earth alloy, or Fe,Co, Ni-based aluminum-containing alloy. The thickness of each laminated coating is 20-1000nm. The micro-laminated coating can be obtained by adopting a plurality of methods through the alternative sedimentation of the alumina coating and a metal coating. The micro-laminated coating has the following characteristics: (1) excellent binding force with the alloy substrate; (2) excellent high-temperature protection performance and anti-tritium penetration performance, and anti-hydrogen damage performance; (3) wide operating temperature range from room temperature to 2000 DEG C; (4) the evaporationinhibition of precious metal coatings at high temperature; and (5) and synergistic protective effect with other coatings.