187results about How to "Facilitates chemical bonding" patented technology

The invention provides a method for the preparation of bone-polymer composites wherein the mineral portion of the bone is treated with a coupling agent before being incorporated into a biocompatible polymeric matrix. The resulting composites may be used as such or be further processed to form an osteoimplant.

A hybrid contact lens comprises a central zone comprising a substantially rigid, gas permeable material having a DK of at least 30, a relatively soft peripheral zone and an intermediate zone comprising a film or coating that is created around the central zone, and then cured. The film facilitates chemical bonding between the central zone and the peripheral zone, and also provides a protective barrier to prevent modification of the physical characteristics of the central zone. The film may be created by soaking the central zone in a chemical solution for a predetermined amount of soaking time.

A polymer bag including a layer of a woven polymer and a method of sealing the gusseted bag by utilizing plasma treatment for sealing at least a pinch bottom of the bag, and additionally, profile strips for reclosably opening and closing the top of the bag.

The invention relates to a paper making material, a preparation method and a paper making method of environment-friendly synthetic paper. The material comprises modified mineral fiber, thermoplastic starch, cellulose derivative, compatilizer, auxiliary components and the like, wherein the average particle diameter of the modified mineral fiber is 5-10 micrometers, the ratio of the length of the modified mineral fiber to the diameter of the modified mineral fiber is 8-15:1, and the modified mineral fiber is treated by fibrosis ultrafine grinding and surface recombination modification; the thermoplastic starch is formed by performing micronization and plasticization modification on norm starch; and the auxiliary components comprise lubricant and colorant. The paper making material is prepared by sequentially mixing the raw material components fully and then extruding and granulating the mixture by a screw extruder at 60-180 DEG C. According to the plastic process mode, the material can be treated by blow molding through a calender or a paper film machine for carrying out two-way stretch to prepare corresponding paper products. The paper making material can overcome the defects of the current synthetic paper and can be widely applied to the fields of commercial printing, publications, office paper, packing and the like, and the processing procedure of making paper by using plastic processing equipment has environmental protection and low cost.

Methods and apparatus for manufacturing vacuum forming a produce container using a fiber-based slurry. The slurry includes a moisture barrier comprising alkylketene dimer in the range of about 4% by weight, and a cationic liquid starch component in the range of 1%-7% by weight.

This invention relates to a biological active nanometer compound layer making method for the medical metal surface, which includes the following steps: putting the medical metal titanium and its alloy radix into the diluent acid liquid to do corrad pretreatment; using the pretreated titanium and its alloy radix as the anode to do anode oxidation to create the compact titanium dioxide nanometer tube film on the surface of the metal; putting them into the alkali lye to do activation treatment, then doing heat treatment with them under 450íµí½650íµ for 0.5í½3 hours; Then putting them into the simulate liquid to produce hydroxyl apatite. The charater of this invention is that it provides a method that combines the anode oxidation and alkali heat treatment, and this invention impoves the biological compatibility of the medical metal greatly.

The invention provides a method for connecting plastic and a metal heterostructure. The method comprises the following steps that S1, laser roughening treatment is conducted on the surface of a to-be-connected metal part, and local protrusions and dents are generated on the surface of the metal part, so that a metallic oxide layer is formed; S2, the metal part subjected to laser roughening treatment and a to-be-connected plastic part are hot-pressed, so that the metal part and the plastic part are bonded together; and S3, out-of-focus laser beams are adopted to penetrate through the plastic part so as to reach the interface between the plastic part and the metal part, and the portion, at the interface, of the plastic part is partially melted. According to the method for connecting the plastic and the metal heterostructure, operation is easy, the mechanical engaging and chemical bonding degree of the plastic and metal is increased through the required local protrusions and dents formed on the surface of the metal part and partial heating and temperature control of the interface, tight bonding of the plastic and the metal at the interface is facilitated, and the interface bonding strength and airtightness of the plastic and the metal heterostructure are improved accordingly.

The present invention discloses a magnesium alloy surface micro-arc oxidation nanometer self-assembly metal ceramic coating and a preparation method thereof. The coating comprises a micro-arc oxidation ceramic layer, a self-assembly nanometer film and an inorganic metal ceramic coating, wherein the micro-arc oxidation ceramic layer, the self-assembly nanometer film and the inorganic metal ceramic coating are sequentially attached on the magnesium alloy surface. The preparation method comprises: carrying out plasma electrolysis oxidation on the surface of a magnesium alloy substrate to form a micro-arc oxidation ceramic coating, then carrying out dipping or high pressure spraying of a self-assembly nanometer film as a connection layer on the surface of the ceramic layer, and adopting a low temperature sintering method to prepare an inorganic metal ceramic coating on the surface of the self-assembly nanometer film. According to the present invention, the head group of the self-assembly nanometer film and the micro-arc oxidation bottom layer ceramic layer form chemical bonding, and a sealing treatment is performed on micro-pores of the micro-arc oxidation film; a high density cross-linking effect on active function groups in the inorganic metal ceramic coating by the self-assembly nanometer film is achieved through the end group; and the magnesium alloy surface composite protection coating prepared by using the method has characteristics of good bonding strength, corrosion resistance, scratching resistance and high hardness.

The present invention is a personal water transfer imaging process kit for application of an image to an object. A pre-printed film having an image thereon is suspended within a vat of water to hydrate the ink after which it is activated. The object is submerged into the vat containing the hydrated and activated ink to generate pressure against the object and cause transfer the ink image onto the object. Primer, base coat, top coat, activator, film and supporting supplies are all supplied within the self-contained kit. The primer coating material, base coating material, activator material and top coat material are the form of a hand held aerosol propellant or pump actuator devices. The kit components are efficiently packaged within a cardboard tube provided with protective clear outer skin. The sensitive image transfer film and supporting components are thereby protected from moisture, dirt and damage while in the tube. The compact size makes the kit retail and retailer friendly and less costly to ship and occupies less retail when displayed in a retail outlet.

High-performance inorganic filled thermoplastic polyester composites are provided, and the process for preparing thereof. Biodegradable inorganic filled thermoplastic polyester composites are provided by reactive melt-blending of biodegradable thermoplastic polyesters with inorganic fillers using a reactive extrusion processing.

The present invention is preparation process of high temperature oxidation resisting coating on the surface of carbon material. The preparation process includes the steps of: cleaning and stoving the surface of the carbon material, compounding slurring with silica powder, boron powder, water and adhesive in certain weight proportion, coating the slurry onto the surface of the carbon material through soaking, spraying or brushing to form slurry layer of 200-240 micron thickness, drying, heating in vacuum resistive furnace first at 400-500 deg.c for 10-20 min and then at 1420-1500 deg.c for 20-30 min, and cooling to obtain high temperature oxidation resisting ceramic coating. The present invention has simple technological process, high production efficiency, good repeatability and low production cost and is suitable for industrial production.

Optical isolators and methods of manufacturing optical isolators are disclosed. The optical isolators are manufactured by directly bonding the parts of the isolators without the use of adhesive or mechanical devices to hold the individual parts together.

The invention provides a carbon fiber sizing agent and a preparation method thereof. The sizing agent is prepared from the following raw materials in parts by mass: 10,000 to 30,000 parts of water, 5 to 15 parts of an emulsifier, 50 to 300 parts of epoxy resin, 1 to 20 parts of a diluent, 0.9 to 1.1 parts of an additive. According to the invention, organic-inorganic oligomeric silsesquioxane nanoparticles are added to the carbon fiber sizing agent, so that the nanometer effect enables the composite material prepared by the sized carbon fibers to be better in heat resistance, toughness and interfacial properties.

In a laminate product formed by an organic member and / or an inorganic member, high strength adhesion between the organic member and the inorganic member is achieved by providing an adhesion layer which includes amorphous carbon nitride (a-CNx:H) particularly between the organic member and the inorganic member. Further, in order to protect a laminate product formed by an organic member and / or an inorganic member, for example, an organic electronic element including an organic compound layer, such as an organic electroluminescence element, a protective film including at least amorphous carbon nitride and a protective layer having a laminate structure formed by sandwiching a vapor deposition inorganic film between plasma polymerized films are used. Thus, a protective film which is optimum to an organic electronic element, having high bending stress resistance, high shielding effect against moisture and oxygen existing in the air, and excellent resistance to high temperature and high humidity can be provided.

The present invention relates to a mass spectrometer that includes an ionization source having a chamber for ionizing a fluid sample. The ionization chamber has surfaces to reduce the overall interaction with reactive samples. The inner surface walls of the ionization chamber may be formed from an inorganic conductive nitride or disulfide material or may be applied to a substrate as a coating. The invention also includes a method for reducing the interaction of a reactive analyte with the inner wall of the chamber by application or coating the inner wall of the chamber with an inert conductive material.

The invention provides a preparation method of a super-hydrophobic polyester textile. The method includes: first conducting alkali treatment on a polyester fabric so as to make fiber surfaces etched by alkali and generate uneven pits, thus improving fiber surface roughness; and then putting the fabric into a dye vat, adding a low-surface energy material, conducting sealing, and performing treatment at 80-150DEG C. The polyester textile prepared by the method has a surface water-drop static contact angle greater than 150 degrees. In the invention, no solvent is employed when low-surface energy material treatment is conducted on the fabric, thus the method is environment-friendly. In addition, the method can make the low-surface energy material go deep into the fibers, so that the prepared super-hydrophobic polyester textile has long-lasting super-hydrophobicity.

The invention relates to the technical field of filters, in particular to an adhesive film for a filter, which comprises the following raw material components in percentage by mass based on the total mass of the adhesive film: 40 to 56 percent of acrylonitrile-butadiene rubber, 20 to 38 percent of tripolycyanamide modified phenolic resin, 0.1 to 0.5 percent of vulcanization accelerator, 2 to 8 percent of calcium carbonate, 1 to 6 percent of calcium sulfate, 1 to 2 percent of zinc oxide, 3 to 5 percent of softening oil, 0.5 to 1 percent of sulfur and 0.5 to 1 percent of rubber anti-aging agent. In the invention, the film adhesive made of modified rubber is used for bonding a filter, and the film adhesive is characterized by high / low-temperature resistance, corrosion resistance, radiation resistance, damp and leakage prevention, high electric insulation property, high weather resistance and high aging resistance, the adhesive film is nontoxic and odorless, and after being the adhesive film is cured, the surface of the adhesive film is flat, very tough and shockproof, the damage to the filter in transportation and installation is eliminated; therefore, the adhesive film is suitable for the filter and also suitable for adhering metal, plastic, rubber, glass, ceramic and other materials.

The invention discloses a flame-retardant elastic nanocellulose aerogel which is prepared from reactive organic compound and polybasic carboxylic acid-containing flame-retardant system by using biomass raw materials of the cellulose. The invention further discloses a preparation method of the aerogel. Compared with the traditional nanocellulose aerogel, the prepared aerogel has good flame-retardant performance, as well as excellent resilience performance, and the application potential and usage safety of the material in the fields of heat insulating field and the like can be greatly improved.

The invention discloses a method for preparing a titanium-based graphene coating for solid phase microextraction. The method comprises five steps. According to the method, a silanization agent serves as an intermediate carrier, graphene is modified on the surface of a metal titanium wire, a coating which has a multi-layer sheet graphene structure is formed on the titanium-based surface, and the material can be applied to the extraction head in the solid phase microextraction technology. The method is advanced in thought, clear in concept, simple and convenient in coating preparation, the thickness is controllable, and the obtained coating is uniform, stable and high-temperature resistant. According to the solid phase microextraction head, trace phthalate in different water samples such as running water, underground water and lake water can be extracted at high efficiency, the corresponding detection limit can be 0.030mu g / L, the reproducibility is 2.2-12.6 percent, the marked recovery rate is 73.8-104.5 percent, and the repeated extraction frequency exceeds 200 times. The method has wide application prospects in the technical field of analytical chemistry and environmental analysis.

The invention provides a degradable lightweight polyolefin composite for injection molding and a preparation method of the composite. The polyolefin composite is prepared from secondarily modified fiber mixed filler, polyolefin resin, a toughening agent, a compatilizer, a lubricant and the like through blending and extrusion granulation by a tri-screw extruders which are arranged triangularly and meshed in the same direction, wherein the modified fiber mixed filler is prepared as follows: a natural plant fiber material such as rice husks, chaff and the like are mixed with a nano-silica colloidal solution, a dispersant and a surfactant are added and a blending reaction, drying and other technologies processes are performed; then the modified mixed fiber filler is subjected to secondary surface coupling hydrophobic treatment and blended with polyolefin resin, the toughening agent, the compatilizer and the lubricant. The polyolefin composite has degradability specific to the natural plant fiber filler, has lower density than inorganic mineral filler and has excellent thermoplastic processing characteristics and mechanical properties in the injection molding process.

The invention relates to a method for preparing modified wood by compounding heat treatment based on alkali lignin. The method comprises the following steps: (1) soaking the wood treated in vacuum ina 1,4-dioxane solution with alkali lignin, adjusting the pressure to 0.2-0.8MPa and retaining the pressure for 50-90 minutes; and (2) taking the wood soaked in the step (1) out, drying the wood, putting the wood under the condition at the temperature of 120-200 DEG C, and carrying out heat treatment for 1.5-4 hours to obtain the modified wood. The method is used as a non-toxic and long-acting woodmodification manner with low cost and simple process; the modified wood with high water resistance and high size stability is prepared by compounding a heat treatment method; the defects of high possibility of cracking and high possibility of deformation of the fast-growing wood can be effectively overcome; the bottleneck problem of utilization of the fast-growing wood at present can be solved.

A lubricant film forming method has a step of irradiating a lubricant with an OH group laid on a surface of a base material, with infrared laser light that excites vibration of an OH bond of the OH group. In this method, the irradiation with the infrared laser light excites vibration of the OH bond of the OH group in the lubricant. Therefore, it enhances reactivity between the OH group of the lubricant and the surface of the base material, facilitates chemical bonding of the lubricant to the surface of the base material, and enhances durability of the lubricant.

The invention discloses a preparation method of a micro-arc oxidation-composite chemical nickel plating coating layer on the surface of a magnesium alloy, and belongs to the technical field of metal surface treatment. The preparation method comprises the following steps: firstly, the micro-arc oxidation is performed for the surface of a magnesium alloy matrix to form a porous ceramic coating layer on the surface; then, the hole sealing treatment is performed for the matrix with the porous ceramic coating layer by adopting nanometer self-assembly penetrant containing nickel salt; the nickel preplating treatment is performed for the matrix, after the hole sealing treatment, by adopting alcohol solution of sodium borohydride; and finally, the composite chemical nickel plating treatment is performed for the matrix, after the nickel preplating treatment, to form the micro-arc oxidation-composite chemical nickel plating coating layer on the surface of the magnesium alloy. The micro composite coating layer, prepared by the method, has better protective thickness, good binding force with the matrix, good corrosion resistance, high hardness, good surface brightness and full luster, effectively solves the protective requirements of high wear resistance and corrosion resistance of the magnesium alloy, and provides powerful guarantee to the further application of the magnesium alloy.

Methods and apparatus for manufacturing vacuum forming a produce container using a fiber-based slurry. The slurry includes a moisture barrier comprising alkylketene dimer in the range of about 4% by weight, and a cationic liquid starch component in the range of 1%-7% by weight.