75results about How to "Composite fully" patented technology

The invention relates to a preparation method of a nano fiber containing TiO2/WO3 heterojunction. The preparation method comprises the following steps of (1) adding soluble titanium salt into a mixed solvent of PVP (Poly Vinyl Pyrrolidone), absolute ethyl alcohol and acetic acid, and obtaining inorganic TiO2 nano fiber by adopting an electrostatic spinning and calcining method; and sequentially adding H2O2 and H2O in tungstic acid powder, and obtaining colorless and transparent WO3 sol; (2) preparing TiO2 nano fiber containing WO3 seed crystal by adding the TiO2 nano fiber into the WO3 sol; and (3) adding the WO3 sol, HMT (Hexamethylenetetramine) and water into the TiO2 nano fiber containing the WO3 seed crystal, and keeping warm for 6-12 hours under 120-180 DEG C; and drying a product which is obtained after hydrothermal in low temperature after centrifuging and water washing, and thus obtaining the nano fiber containing the TiO2/WO3 heterojunction can be obtained. The preparation method disclosed by the invention is simple and practical, the composition of the TiO2 and the WO3 is more uniform and fuller, a large amount of contact interfaces can be formed, and the catalyzing ability can be increased.

The invention provides a preparation method of a chitosan modification barium ferrite filling multi-walled carbon nanotube/poly 3-methylthiophene composite wave-absorbing material. The method utilizes a carbon nanotube as a raw material, after the carbon nanotube is filled with barium ferrite, chitosan is coated on the carbon nanotube for modification, and then the carbon nanotube is composited with poly 3-methylthiophene to obtain the novel wave-absorbing material integrating magnetic loss, electrical loss and carbon nanotube wave absorption. Requirements for being thin, light, wide and strong of the wave-absorbing material are met. Therefore, the composite wave-absorbing material has wide application prospect in aspects of microwave absorption, electromagnetic radiation resistance and the like.

The water absorbing and maintaining composite material consists of water soluble unsaturated ethylene monomer, illite-clay mineral in the amount of 2-300 wt% of the ethylene monomer, and water soluble free radical polymerization initiator in the amount of 0.001-1 wt% of the ethylene monomer. The preparation process includes adding illite-clay mineral into 5-50 % concentration water soluble unsaturated ethylene monomer solution with water soluble free radical polymerization initiator or water soluble free radical polymerization initiator and crosslinking agent, dispersing, heating to 20-90 deg,c for polymerization of 1-10 hr, drying of the polymerized product at 40-150 deg.c and crushing mechanically to obtain grain product. The water absorbing and maintaining composite material has low cost, high absorption to calcium and magnesium ion aqua and high salt tolerance, and is suitable for use in agriculture and forestry.

The invention discloses a preparation method of graphene/silver composite conductive printing ink. The method comprises the following steps: adding biomass graphene into a spherical silver powder reducing system to form graphene/spherical silver composite powder, performing mechanical ball milling to form graphene/sheet-like silver composite powder, and mixing the graphene/sheet-like silver composite powder and a resin system to form the graphene/silver composite conductive printing ink. According to the preparation method, the requirements of low resistivity, high fineness, large adhesion power and high hardness of an electronic circuit can be met while the silver content is reduced, and the graphene/silver composite conductive printing ink is expected to be widely applied to different electronic information products such as a touch screen, an RFID (radio frequency identification device), a flexible circuit and a supercapacitor.

The water absorbing and maintaining composite material consists of water soluble unsaturated ethylene monomer, rectorite-clay mineral in the amount of 2-300 wt% of the ethylene monomer, and water soluble free radical polymerization initiator in the amount of 0.001-1 wt% of the ethylene monomer. The preparation process includes adding rectorite-clay mineral into 5-50 % concentration water soluble unsaturated ethylene monomer solution with water soluble free radical polymerization initiator or water soluble free radical polymerization initiator and crosslinking agent, dispersing, heating to 20-90 deg,c for polymerization of 1-10 hr, drying of the polymerized product at 40-150 deg.c and crushing mechanically to obtain grain product. The water absorbing and maintaining composite material has low cost, high absorption to calcium and magnesium ion aqua and high salt tolerance, and is suitable for use in agriculture and forestry.

The invention relates to a production and manufacturing method of a renewable environment-friendly paper-plastic composite bag, and further particularly relates to a production and manufacturing device of the renewable environment-friendly paper-plastic composite bag. The production and manufacturing device specifically comprises a device seat, a gluing feeding mechanism, a glue uniformizing mechanism, a compressing composite mechanism and a cold-drying glue setting mechanism; two side vertical plates are parallelly arranged on the device seat; and the gluing feeding mechanism, the glue uniformizing mechanism, the compressing composite mechanism and the cold-drying glue setting mechanism are sequentially arranged between the two side vertical plates. Through the device involved in the method provided by the invention, a paper tape and a thin film tape can be quickly compressed to be composited, compositing is full and reliable, and the compositing quality is higher; and a cold-drying process is increased, thus direct winding after compositing is completed is facilitated, and the finished product quality of raw materials of the paper-plastic composite bag is guaranteed.

The invention discloses a ppy @ ZIF-67 composite material and preparation method and application thereof. The preparation comprises the steps: (1) mixing and stirring cobalt nitrate hexahydrate, potassium persulfate and deionized aqueous solution so as to obtain a solution A; (2) mixing and stirring pyrrole monomer, sodium dodecyl sulfate, dimethylimidazole and deionized aqueous solution so as toobtain a solution B; 3) pouring the solution A into the solution B, heating, mixing and stirring, washing with deionized water and ethanol and drying so as to obtain the black powder ppy @ ZIF-67 composite material. The ppy @ ZIF-67 composite material is prepared into an electrode sheet to be applied supercapacitors and shows the specific capacitance of being up to 3600F/g and good magnification characteristics so as to be a quite potential supercapacitor material.

The invention belongs to the field of metal-containing catalyst preparation, and specifically relates to a Ta3N5/C composite fiber photocatalyst and a preparation method thereof. The method adopts an electrostatic spinning method to be combined with a hydrothermal method and calcination to prepare the Ta3N5/C composite fiber photocatalyst. According to the prepared Ta3N5/C composite fiber photocatalyst, a Ta3N5 nano fiber is evenly coated with a C membrane, a good heterojunction is formed, recombination of photo-generated electrons and holes is effectively restrained, and the Ta3N5 photocatalytic activity and stability performance are improved; besides, the Ta3N5/C composite fiber photocatalyst has the characteristic of being easy to recycle, is a good photocatalytic material, and has important application values in environment, energy sources and other fields; and the preparation method is simple, equipment and other costs are relatively low, test conditions are controllable, and mass production preparation is facilitated.

The invention relates to a production method of cotton-like environment-friendly hyperelastic plant complex fiber. The method comprises the steps that cotton-like fiber enters a first heating box to be subjected to drafting through a first roller, then the cotton-like fiber enters a cooling plate to be subjected to cooling after drafting, and then the cotton-like fiber enters a false twister to be subjected to false twisting; plant fiber is placed on a protofilament support, and then the plant fiber enters a pre-drafting instrument and a main drafting instrument through a second roller to be subjected to drafting; the cotton-like fiber after false twisting and the plant fiber after drafting are compounded through a third roller; the compounded cotton-like fiber and the plant fiber are indrawn into a pre-interlacer to be subjected to preliminary increase of net points, after being set, the compounded cotton-like fiber and the plant fiber are indrawn into a fourth roller to be subjected to re-interlacing, and are then subjected to increase of net points again, and finally a coiler is utilized to conduct winding. According to the production method of the cotton-like environment-friendly hyperelastic plant complex fiber, the compounding performance is good, the feel of cotton is strong, the two kinds of fibers are fully compounded, the appearance of the fibers is uniform, the dyeing stability is guaranteed, and the cloth fabric effect is similar to cotton yarn fabric; meanwhile, the cotton-like environment-friendly hyperelastic plant complex fiber has the function of the plant fiber which is laundry resistant, and is excellent in elasticity.

The invention relates to a high water-absorbing water-loss reducer formulation and its process for preparing, in which the water-absorbing water-retaining composite containing soda-aluminosilicate colloid is characterized in that it consists of soda-aluminosilicate colloid, water-soluble vinyl unsaturated monomer and water-soluble free radical polymerization initiator, in which the additive mass of the soda-aluminosilicate colloid is 2-200 % of the water-soluble vinyl unsaturated monomer and the additive mass of the water-soluble free radical polymerization initiator is 0.001-1 % of the water-soluble vinyl unsaturated monomer. The process for preparing includes: decentralizedly processing the soda-aluminosilicate colloid dissolved with water-soluble free radical polymerization initiator or water-soluble vinyl unsaturated monomer dissolved with water-soluble free radical polymerization initiator and coupling agent with 20-90 % of weight concentration at 30-90 DEG C and heating them for 1-10 hours, slicing the produced gel, drying, comminuting and screening to obtain the product at 40-150. The invention is of low preparation cost, higher input scaling factor and better salt resistance, so is suitable for agrisilviculture.

The invention discloses an oriented carbon nanotube reinforced nylon composite material and a preparation method and application thereof. The preparation method comprises the following steps: enablingan unshrunk carbon nanotube aggregate to directly enter a liquid phase system, and enabling nylon macromolecules contained in the liquid phase system to be in full contact and fully compounded with carbon nanotubes forming the carbon nanotube aggregate, thus forming a complex of the carbon nanotube aggregate and nylon; enabling the complex of the carbon nanotube aggregate and the nylon to shrink,enabling the carbon nanotubes in the complex to be oriented, then carrying out curing treatment, and collecting to obtain the oriented carbon nanotube reinforced nylon composite material. The preparation process is simple and controllable, the requirement of large-scale production is met, and the obtained product is excellent in mechanical property and can be used as a 3D printing material.

The invention relates to waterproof coiler production equipment, in particular to an offset regulation device for coiled material production. The offset regulation device is composed of a rolling shaft, a rolling shaft support and a support. An offset regulation device body is arranged on one side of the rolling shaft and is composed of a platform, a handle and a gear. According to the offset regulation device for coiled material production, the offset regulation device body is added on one side of the rolling shaft and offset of the rolling shaft can be effectively avoided so that complete combination between non-woven fabrics and pitch or between screen cloth grids and the pitch can be guaranteed and quality of produced products can be guaranteed.

The invention provides a preparation method of a silicon/folded graphene electrode material. Silicon-aluminum alloy particles are added into an graphene oxide solution and dispersed evenly through ultrasound, and suction filtration is conducted to form a composite thin film; the thin film is added into a diluted hydrochloric acid solution to react while being not completely dried; the thin film istaken out and naturally air-dried, and then heated so as to remove the residual solvent; graphene oxide is reduced by using a hydroiodic acid solution and washed with ethyl alcohol, and the silicon/folded graphene electrode material is obtained. Folded graphene in the method can be applied to enhance the charging property and the electricity storage property of a lithium battery, and can preventlithium from forming branched crystals. In addition, hydrochloric acid reacts with aluminum to generate gas, so that the interior of the graphene oxide thin film can generate a mass of folds; the reacted aluminum can also generate gaps to cause an effect similar to a hollow core-shell structure; high-elastic folded graphene can be compressed, and can effectively buffer volume expansion of silicon.

The invention discloses magnetic polyamide, a preparation method thereof and magnetic fibers obtained by using the magnetic polyamide. The preparation method comprises the following steps: firstly obtaining flaky magnetic particles, then carrying out organic modification on the flaky magnetic particles to obtain organic modified flaky magnetic particles, and then carrying out melt blending on theorganic modified flaky magnetic particles and polyamide or carrying out in-situ polymerization on the organic modified flaky magnetic particles and a polyamide monomer to obtain the magnetic polyamide; meanwhile, carrying out melt spinning on the magnetic polyamide to obtain the magnetic fibers. The magnetic polyamide and the magnetic fibers obtained according to the method have very excellent electromagnetic shielding property and mechanical property.