32results about How to "Help with attachment" patented technology

The invention relates to a method for improving the treatment effect of titanium dioxide to wool / viscose / polyester fabrics, and belongs to the technical field of textile printing and dyeing. The method comprises the following steps: firstly, preparing a protease solution to treat wool / viscose / polyester blended fabrics, and then carrying out inactivation treatment on protease; secondly, preparingan acid cellulase solution to treat the blended fabrics; thirdly, adding lipase to further treat the fabrics, and taking out the fabrics from the solution and air-drying the fabrics; and finally, preparing dispersion liquid which contains titanium dioxide, butanetetracarboxylic acid and sodium hypophosphite, dipping the blended fabrics in the dispersion liquid and baking to finish treatment. Theblended fabrics are pretreated by using protease, cellulase and lipase, the adhesion amount of titanium dioxide particles on the blended fabric can be increased, and then functional effects of bacteria resisting, self-cleaning and the like of the blended fabrics are improved.

The invention relates to an application of a graphene / polypyrrole composite material with three-dimensional multilevel holes, which relates to an application of a graphene composite material. The invention aims to solve the technical problems of low biomass concentration, poor electron transfer and weak microbial affinity in the current bioelectrochemical system. The present invention: 1. preparation of graphene oxide colloidal suspension; 2. cyclic voltammetry deposition. The three-dimensional multi-level porous graphene / polypyrrole composite material of the present invention is used as a bioelectrode in a bioelectrochemical system. The graphene / polypyrrole composite material with three-dimensional multi-level holes prepared by the invention has an open porous three-dimensional interconnected conductive scaffold and has a relatively high surface roughness, which is beneficial to the colonization of microorganisms and the transfer of extracellular electrons to electrodes. The graphene / polypyrrole composite material with three-dimensional multi-level holes of the present invention has a sandwich structure, wherein the graphene layer is protected by the polypyrrole layer, which facilitates colonization of microorganisms.

The invention relates to the technical field of polishing liquid, and discloses a cerium oxide polishing liquid, a preparation method and application thereof. Wherein, the polishing liquid contains abrasive, dispersant, defoamer and water, wherein the abrasive is a mixture of cerium oxide, lanthanum oxide, lanthanum fluoride, lanthanum oxyfluoride and titanium oxide; the dispersant is allyl poly A mixture of oxyethylene ether and / or polyoxyethylene octylphenol ether and triethylhexyl phosphoric acid, vinyl bisstearamide, sodium styrene sulfonate; the defoamer is polyoxyethylene polyoxypropylene alcohol amine ether and poly Ether Dimethicone Copolymer. The polishing liquid is applied to the glass surface for polishing, and has high polishing efficiency, strong dispersion ability, good long-lasting defoaming effect and long-term defoaming effect.

The invention discloses a preparation method of a flexible thin film based on a graphene micro column array and belongs to the field of micro-nano machining. The preparation method comprises the following steps: washing a micro array silicon template and then pouring PDMS (Polydimethylsiloxane) after the micro array silicon template is subjected to hydrophobic treatment; curing and stripping to obtain PDMS with a micro array structure, carrying out plasma oxygen etching and soaking with a diallyldimethylammonium chloride solution, dispensing a graphene aqueous solution, drying, and then enabling the graphene to be uniformly spread on the surface and the side face of the micro column array; and finally, obtaining the flexible micro column array thin film. The preparation method has the advantages of simplicity and feasibility, controllable process parameters, low cost and high repeatability.

The invention relates to a high-gloss and low-haze PE heat-shrinkable film and a preparation method thereof. The film layer structure of this PE heat-shrinkable film is successively corona layer, sub-outer layer one, middle layer, sub-outer layer two and heat-sealing layer; 32):(8~12):(58~62):(0.1~0.3) metallocene polyethylene, linear low density polyethylene, low density polyethylene and processing aids; sub-outer layer 1, sub-outer layer 2 The metallocene polyethylene, high-density polyethylene and low-density polyethylene are respectively included in a mass ratio of (28-32):(28-32):(38-42). The PE heat shrinkable film has high shrinkage rate, strong shrinkage memory function, high tensile strength, strong puncture resistance, and tear resistance in all directions; it has the characteristics of low haze, high transparency, and high gloss; the friction coefficient is moderate and stable, Good thickness uniformity and flatness, good printing adaptability.

The invention discloses a method of preparing a composite phosphating film by doping inorganic nanoparticles. The method comprises the following steps that the components of, by mass 5-8 parts of phosphate, 7-9 parts of zinc, manganese or calcium salt, 0.6-3 parts of phosphoric acid, 0.04-0.4part of boron nitride, 0.1-1 part of a stabilizer, 6-10 parts of a pH buffer agent, 80-100 parts of water are put into a reaction kettle, and the pH value is adjusted to 2-3 by using an alkali solution, then temperature is heated to 20-40 DEG C, and mechanically stirring and discharging kettle are carriedout; and then a prepared phosphating treatment solution is placed into a phosphating tank, the temperature of the phosphating treatment is increased to 20-40 DEG C, then a steel test piece after rustremoval and oil removal is immersed into the phosphating tank, and after the steel test piece is treated, the steel test piece is washed by water and aired. According to the method, the boron nitrideis used as a nucleation adsorption site of crystal during phosphorization, so that crystal adhesion is facilitated, and a composite phosphating film is formed, the boron nitride is a hydrophobic nanomaterial, the dense composite phosphating film can effectively prevent the permeation of the water in air, and corrosion resistance is excellent.

Disclosed is a novel process for producing a low carbon gas shielded welding wire. The novel process for producing the low carbon gas shielded welding wire includes following steps of (1) raw material selection, (2) surface treatment processes, (3) drawing process and (4) copper plating process, wherein the step (1) includes that as for steel wire rod composition, C is equal to 0.06-0.010%, Si is equal to 0.80-1.00%, Mn is equal to 1.40-1.60%, P or S is smaller than or equal to 0.020%, and Ca is smaller than or equal to 0.0015%; the step (2) includes an acid pickling process and a phosphating process, as for the acid pickling process, pickling solution proportion includes that prewash hydrochloric acid concentration is 5-10%, hydrochloric acid concentration for substrate washing is 15-20% and FeC12 is smaller than or equal to 300g / l, acid pickling time is 10-25minutes, washing is performed by high pressure water instantly after acid pickling, and as for the phosphating process, phosphating solution proportion includes that Ta total acidity is 50-110pt and Fa free acidity is 5-20pt, phosphating temperature is 70-80DEG C and phosphating time is 1-3 minutes. By means of the novel process for producing the low carbon gas shielded welding wire, a chemical adsorption film is formed on the surface of a steel wire rod, a thin phosphating film is formed on the surface of the steel wire rod by mid-temperature phosphating process and short phosphating time, adsorption of surface lubricating agents is more uniform and compact, the steel wire rod is directly drawn to form a finished product wire in an unannealed state after surface treatment, costs are reduced by 50-80 yuan / ton compared with those of common processes, the wire breaking rate is decreased by 70%, and the producing efficiency is increased by 40%.

The invention discloses a surface treating agent applicable to a toy plastic material and a preparation method thereof. The raw material formula of the surface treating agent consists of sodium laureth sulfate, laurinol disodium stearamido measulfosuccinate, lauramide propyl gydroxysulfobetaine, cocamide MEA, polyquaternium-7, ethylenediaminetetraacetic acid disodium salt, 1,3-dihydromethyl-5,5-dimethyl hydantion and dilute phosphoric acid. The surface treating agent can be applied to performing surface pretreatment on toy plastic materials such as acrylonitrile butadiene styrene (ABS) / polyvinyl chloride (PVC) and the like before coating. In the formula of the surface treating agent, environment-friendly materials are adopted completely, so the discharging quantity of volatile organic compounds (VOC) is close to 0. Compared with the traditional solvent type clean treating agent, the surface treating agent has better cleaning effect and better coating effect of the coating. The surfacetreating agent has a simple preparation method and low cost of the raw material formula, and can meet requirements of toy manufacturers and requirements of national low-carbon economy.

An attachment structure of a weight sensor for seat occupant detection, comprising: an insertion member (10, 101, 102) extending from a skin member of a seat portion to a in a groove on a cushion member of the seat portion; and at least one connecting member (9, 90, 91) connected to the insert member (10, 91) inside the groove 101, 102) of the second end portion. The opening portion (11, 110, 111, 23) is provided in the insertion member, and the weight sensor is inserted into the insertion member through the opening of the opening portion across the groove.