36results about How to "Improve descriptive" patented technology

The invention discloses a polyamide composition, which is composed of polyamide, toughening master batch, nucleating agent, coupling agent and glass fiber, wherein the toughening master batch is composed of polyamide 6, toughening agent, toughening Synergists, antioxidants and lubricants are prepared. The toughening component is added in the form of self-prepared toughening masterbatch, which improves the dispersion of the toughening component in polyamide on the one hand, and improves the reaction degree of the toughening component and polyamide on the other hand, greatly The toughening effect is improved, and the good mechanical strength of the material is retained at the same time, so that the polyamide composition can be prepared with excellent rigidity and toughness. The invention also discloses a preparation method of the polyamide composition.

The invention discloses a down fabric, which is characterized in that it comprises an outer layer of the fabric, a down layer and an inner layer from top to bottom; Bonded together by an adhesive layer; wherein, the outer layer of the fabric is made of the following raw materials in parts by weight: polypyrazolo[1,5‑A]‑1,3,5‑triazine‑2,4 (1H,3H)-diketone 3-(tert-butyldimethylsiloxy) glutarate 50-70 parts, polydicarboxyethyl germanium trioxide polytetrahydrofuran glycol ester 20-30 parts, oxidation Graphene 10‑15 parts. The down fabric disclosed by the invention has excellent air permeability and the effect of preventing the down from drilling out, and has good water resistance, cold resistance, weather resistance and flame retardancy, and has a good hand feeling. In addition, it also has the health care function of promoting blood circulation .

A production method of a power type lithium ion battery anode material is provided. Needle coke is adopted as a main raw material. The method includes a step of crushing and grading the needle coke into micron-size particles; a step of adding asphalt into carbon disulfide liquid, stirring the mixture to dissolve the asphalt, then adding the needle coke micron-size particles, fully stirring the mixture, and performing evaporation to dryness at 70 DEG C; a step of adding graphene into an ethanol solution having a concentration of 70%, fully stirring the ethanol solution, then adding phenolic resin into the ethanol solution, stirring the mixture to obtain a suspension, filtering the suspension and performing evaporation to dryness; a step of subjected to two dried materials to mixing, heating and modification at 300-400 DEG C according to a certain ratio; and a step of performing carbonization at 1300-1400 DEG C, or performing carbonization at 1300-1400 DEG C, and then performing graphitization at 2800-3000 DEG C, or directly performing graphitization at 3000-3200 DEG C. The material prepared by the method has advantages of a high charge-discharge rate, good cyclic performance, good charge-discharge reaction reversibility, a high capacity, and the like.

The invention discloses an anti-bacterial hydrophilic urethral catheter which comprises a urethral catheter body and a coating coated on the surface of the urethral catheter body. The urethral catheter body is prepared from a fluorine-silicon material copolymer, polyurethane and 1-(3-triethoxysilylpropyl)-1H-pyrrole-2,5-diketone modified fullerene, wherein the coating on the surface of the urethral catheter body is prepared from 3-(2-hydroxyethyl)-1-[[3-(2-hydroxyethyl)-2-oxopyrrolidin-1-yl]methyl]pyrrolidin-2-one, Bis[2-(3,4-epoxycyclohexyl)ethyl]tetramethyldisiloxane and polylactic acid through a chemical reaction. The prepared anti-bacterial hydrophilic urethral catheter is excellent in comprehensive performance, has a continuous anti-bacterial effect, is excellent in surface hydrophilic lubrication, flexibility and comfort, and is easy to insert.

The invention relates to an exterior wall decoration structure and a construction method thereof. The exterior wall decoration structure includes a thermal insulation board, an anti-crack mortar insulation layer and a decorative board. The anti-crack mortar insulation layer is made by smoothing the anti-crack mortar. The cracking mortar is made from the following raw materials in parts by weight: Portland cement, sand, water, urea, polypropylene fiber, air-entraining agent, silane coupling agent, talcum powder, sodium bentonite, diatomaceous earth, vitrified microbeads, The construction method of hydroxypropyl methyl cellulose includes the following steps: S1, connect the insulation board with the base layer of the wall through the connector, and clean up the sundries on the insulation board; The cracked mortar is smoothed on the side of the insulation board away from the base layer of the wall, pressed into the alkali-resistant mesh cloth, smoothed with anti-cracking mortar, and smoothed to level the anti-cracking mortar insulation layer; S3. After the anti-cracking mortar insulation layer is dry, pass The connecting piece connects the decorative board with the anti-cracking mortar insulation layer. The invention has the advantages of good thermal insulation effect and good crack resistance.

The invention relates to a method for charging or discharging a piezoelectric actuator (100), in particular a piezoelectric actuator of an injection valve of an internal combustion engine, wherein a first part of the actuator (100) An interface (102) is at least temporarily placed via a transfer inductance (L) at a first reference potential (PB1), characterized in that the actuator (100) is actuated according to the first reference potential (PB1 ) and the potential difference between the potential (P102) on the first interface (102) of the actuator (100).

The invention discloses a silicone-acrylic emulsion and a preparation method thereof. The silicone-acrylic emulsion is prepared from a first component and a second component, wherein the first component is prepared from the following raw materials in parts by weight: 20 to 30 parts of methyl methacrylate, 40 to 60 parts of butyl acrylate, 1 to 3 parts of acrylic acid, 0.8 to 1.2 parts of emulsifier and 50 to 60 parts of deionized water; the second component is prepared from the following raw materials in parts by weight: 30 to 50 parts of organosilicon monomer, 0.8 to 1.2 parts of dodecylbenzenesulfonic acid, 0.5 part of emulsifier and 30 to 40 parts of deionized water; the organosilicon monomer is a mixture of octamethyl cyclotetrasiloxane and triethoxyvinyl-siloxane. The silicone-acrylicemulsion is relatively higher in organic silicon content. In the method disclosed by the invention, when the first component and the second component are added dropwise, a polymerization reaction isperformed by a graduation polymerization method, so that the glass transition temperature and lowest film-forming temperature of the generated silicone-acrylic emulsion are lower.

The invention provides a resin diamond wire and a preparation method thereof. The resin diamond wire comprises a bus bar and a resin coating that coats the surface of the bus bar; raw materials forming the resin coating comprise a resin, a modified diamond abrasive and a filler; and the modified diamond abrasive is plasma-treated diamond powder. The resin diamond wire greatly improves the bondingforce between the resin and the diamond, the resin holds the diamond more firmly and does not fall off easily, the number of diamonds which are effectively involved in cutting is more, the diamond loss is lower, and thus the cutting force of the resin diamond wire is improved. In addition, no low molecular volatile is produced during the processing of the resin diamond wire, and the method is veryenvironmentally friendly.