85 results about "Interfacial Force" patented technology

The present invention provides a composite implant comprising pores of a porous structure filled with a biodegradable magnesium-based alloy. Further, the present invention provides a composite implant which filles pores of the porous structure prepared by a metal, a ceramic or a polymer with a biodegradable magnesium-based alloy. Mechanical properties of the composite implant of the present invention are improved because a magnesium-based alloy filled in its pores increases the strength of a porous structure comprised of a metal, a ceramic or a polymer. Further, it can be expected that the magnesium-based alloy filled in the porous structure is decomposed in a living body, thus increasing bone formation rate. Accordingly bone tissue can be rapidly formed because the composite implant of the present invention has high strength and excellent interfacial force between the composite implant and bone tissue, compared to conventional porous materials.

A technology method about continuous hot dip galvanizing on zonal steel, the method contains: the first cleaning step to clean and get rid of the remainder on the surface of zonal steel; The alkaline cleaning step to get rid of the fat on the surface of it; The acidwashing step to get rid of the oxidation skin on the surface of it. The second cleaning step: To get rid of the product of the alkaline cleaning and acidwashing on the surface of zonal steel. Heat treatment step: to realize the heat treatment of the zonal steel in the shielding gas and deliver the zonal steel to the zincification step in the ambience of shielding gas. Heat zincification step: to install clad layer on the surface of zonal steel. The benefit of this patent is: the patent contains the first cleaning step, alkaline cleaning step, acidwashing step and the second cleaning step, it can get rid of oxidation skin, fat and the remainder on surface, and it can activate the surface of steel, decrease interfacial force of molten metal, improve the soakage ability of zinc liquid, and increase the binding capacity of the zinc clad layer.

A microfluidic system comprises a microchannel, a carrier fluid in the microchannel, and at least two plugs in the microchannel. Each plug comprises a plug fluid that is substantially immiscible with the carrier fluid. The microfluidic system further comprises at least one spacer in the microchannel between two plugs. Each spacer comprises a spacer fluid that is substantially immiscible with the carrier fluid and the plug fluid, and both of the following conditions are satisfied: (γ_c-r+γ_t-r>γ_c-t) and (γ_c-t+y_t-r>y_c-r), where γ_c-r is the interfacial force between the carrier fluid and the plug fluid, γ_t-r is the interfacial force between the spacer fluid and the plug fluid, and γ_c-t is the interfacial force between the carrier fluid and the spacer fluid.

The invention relates to a wafer-like aluminum phosphate/thermosetting resin composite and a preparation method thereof. A preparation process of wafer-like aluminum phosphate comprises the steps of enabling an aluminum-contained compound and a phosphorus-contained compound to react at the temperature of 40-100 DEG C for 10-30min according to the aluminum-to-phosphorus molar ratio of 1:3 to 1:5 to prepare an aluminum dihydrogen phosphate precursor, and then, adding 5.5-17 mol of deionized water to obtain an aluminum dihydrogen phosphate precursor solution; cooling to 0-20 DEG C, regulating the pH value to 4-6 by using an alkaline solution, preserving the heat at the temperature of 0-20 DEG C for 8-12h, and after the reaction is ended, washing, carrying out suction filtration and removing impurities to obtain wafer-like aluminum phosphate with the diameter of 1-1.5mu m; uniformly mixing 100 parts by weight of molten thermosetting resin and 3-50 parts by weight of wafer-like aluminum phosphate, and curing to obtain the wafer-like aluminum phosphate/thermosetting resin composite with flame retardance. The wafer-like aluminum phosphate contains a great number of hydroxyls, has favorable dispersibility in a resin matrix, and also has favorable interfacial force so as to ensure that the composite has a flame retardant effect. The preparation method provided by the invention has the characteristics of wide applicability and simple operation process.

The invention relates to the field of the high polymer material blending alloy, and specifically relates to a high-tenacity polylactic acid PLA/PBAT blending alloy and a preparation method thereof. The PLA, the PBAT, the PDLA-PBAT-PLDA triblock copolymer are used as the raw material, and a banburying machine is used for preparing the PLA//PBAT/PDLA-PBAT-PDLA blending alloy, the content of the PDLA-PBAT-PLDA triblock copolymer in a blending system is 1%-10%. The PLA/PBAT blending alloy prepared by the invention takes the PDLA-PBAT-PDLA triblock copolymer as the compatilizer, the PDLA chain segment can form the steric composite crystal (SC) in-situ with the PLA when performing the melt blending, the PLA and PBAT two-phase interfacial force is improved, and the mechanical performance of the alloy is obviously improved. The blending alloy disclosed by the invention is simple in process, normal in equipment and easy to realize industrial production.

An interfacial force microscope includes a differential-capacitance displacement sensor having a tip mounted on an oscillating member. The sensor generates displacement signals in response to oscillations of the member. A scanner is adjacent the sensor and supports a sample to be imaged. The scanner is actuable to move the sample relative to the sensor to bring the tip into intermittent contact with said sample as the member oscillates. A controller is in communication with the sensor and the scanner. The controller includes a sensor feedback circuit receiving the displacement signals and an AC setpoint signal. The AC setpoint signal has a frequency generally equal to the frequency at the peak of the displacement versus frequency curve of the sensor. The output of the sensor feedback circuit is applied to the sensor to oscillate the member. The controller also provides output to the scanner in response to the displacement signals to control the separation distance between the sensor and the sample.

[Summary]

[Problem] To provide a conductive pattern formation method in which a fine pattern can be formed in a simple way at low cost.

[Means for solving problem] A flat plate having a convex pattern on its surface is provided so as to oppose a substrate, a fluid body including conductive particles and a gas bubble generating agent is supplied into a gap between the substrate and the flat plate, and thereafter, the fluid body is heated for generating gas bubbles from the gas bubble generating agent included in the fluid body. The fluid body is forced out of the gas bubbles as the gas bubbles generated from the gas bubble generating agent grow, so as to self-assemble between the convex pattern formed on the flat plate and the substrate owing to interfacial force, and an aggregate of the conductive particles included in the fluid body having self-assembled is made into a conductive pattern formed on the substrate.

The invention provides a method for monitoring interaction force between composite materials and molds in curing procedures.The method includes forming a plurality of grooves in composite material contact surfaces of the molds, embedding strain sensors in the grooves and fixing two ends of a measurement region of each sensor to the corresponding mold; converting strain signals measured by the sensors into values of stress between the composite materials and the molds so as to monitor the interaction force between the composite materials and the molds in the curing procedures.The method has the advantages that the interaction force between the composite materials and the molds can be effectively monitored in the curing procedures, and technical support can be provided for predicting and controlling curing deformation of the composite materials.

A processing auxiliary agent having compatibility-enabling and coupling functions and a preparing method thereof are provided. The processing auxiliary agent includes, by weight, 65-85 parts of polypropylene wax, 10-30 parts of a modified oligomer, 0-15 parts of an unsaturated functional monomer, 0-5 parts of vinyl silane and 0.5-2.5 parts of a free radical initiator. The processing auxiliary agent integrates compatibility-enabling and coupling functions, has obvious functions in the fields of plastic alloys, plastic filing, inorganic filler surface treatment, and the like, and can improve interfacial force between resin and resin as well as interfacial force between resin and a filler, thus improving appearance quality of a final product and improving macroscopic performance and processing performance of products.

The present invention discloses an electrode segmentation type single drive and two-way piezoelectric motor, comprising a stator and a rotor rotating relative to the stator; the stator comprises a driving body with a centre hole and a piezoelectric sheet connected to one side of the driving body by an interfacial force; the rotor comprises a rotating body penetrating through the centre hole of the driving body and a cap fixedly connected to one end of the rotating body; the cap is contacted with the driving body; a gap is disposed between the rotating body and the wall of the centre hole of the driving body; the piezoelectric sheet comprises two mutually independent piezoelectric sheets or two piezoelectric sheet areas separated by the gap. The volume of the piezoelectric motor is small, and the power consumption is low; and the piezoelectric plays an important role in microminiaturization of piezoelectric motor.

The invention discloses a method for representing an interfacial force between explosive and bonding agent. The method comprises the following steps of modifying the tip end of an AFM probe micro-cantilever by explosive particles through a binding medium, or directly modifying the tip end of the AFM probe micro-cantilever by adhesive, thereby obtaining a modified probe; applying the adhesive on a flat substrate, or fixing the explosive particles on the flat substrate; by means of a force spectrum scanning mode of an atomic force microscope, performing force curve representation by means of the modified probe on the surface of the bonding agent or explosive particles; and extracting a corresponding bonding force parameter according to a force curve, thereby obtaining the interfacial force between the explosive and the bonding agent. The method realizes direct and quantitative representation of the interfacial force between explosive and components of the bonding agent, thereby realizing a new facility for mechanical characteristic research of a crystal/adhesive interface in PBX explosive.

The invention discloses a polypropylene composite material available for chemical micro-foaming and a preparation method thereof. The polypropylene composite material is uniformly mixed with a composite foaming agent, and the polypropylene composite material is formed by adopting secondary mold-opening injection molding, wherein the polypropylene composite material is prepared from the following components in parts by weight: 65 to 85 parts of polypropylene, 10 to 20 parts of active calcium silicate, 10 to 15 parts of a flexibilizer, 0.4 to 0.8 part of a modifier, 0.2 to 0.4 part of an antioxidant ,0.5 to 1 part of a lubricating agent, 0.5 to 1 part of a cross-linking agent, 0.2 to 0.5 part of a cross-linking assistant and 0 to 3 parts of other assistants. The surface of the active calcium silicate is coated by adopting synergy of the cross-linking assistant and the surface active agent, the interfacial force with resin is strengthened, the dispersion is more uniform, and simultaneously a polypropylene cross-liking reaction is triggered through the cross-linking agent to form a network-shaped structure, so that the melt strength of the composite system is improved, and the composite material has excellent foaming performance; and the composite material has the characteristics of wide source of raw materials, low cost, small density, high dimensional stability, excellent mechanical performance, heat insulation, sound insulation and noise reduction.

The invention relates to a slag-forming constituent in casting lead and lead-base alloy, which comprises 35-70wt% of CaF2, 3-5wt% of Na3AlF6, 3-8wt% of KCl, 8-10wt% of NaCl, 2-5wt% of ZnCl2, 20-50wt% of C powder and 3-5wt% of NH4Cl. The invention makes use of the principle that inorganic salt can improve interfacial force and boundary tension between lead fondant and oxidate so as to de-slag in casting and using of lead-base product, improve quality of casting and using, ensure slag to carry on powder, and recovery metal efficiently. The invention the properties of simple preparation, low input of apparatus and capital and extensive usages such as lead ingot casting, lead-base alloy product casting and lead-base product later usage.

The invention relates to a high-performance polyolefin composite material and a preparation method thereof. The composite material is prepared from, by weight, 60-80 parts of polyolefin, 20-40 parts of elastomer, 6-10 parts of an ethylene-octylene segmented copolymer, 0.1-0.5 parts of antioxidant, and 0.4-0.8 parts of a lubricant. In the technical scheme, the ethylene-octylene segmented copolymer (OBC) is a polymer surfactant of the polyolefin/elastomer two-phase system, wherein the OBC not only contains an amorphous soft segment being low in glass-transition temperature but also contains a hard segment being high in melting temperature and being crystallizable. The OBC has excellent compatibility with both the polyolefin and the elastomer, thereby enhancing the two-phase interfacial force between the polyolefin and the elastomer.

The invention discloses a preparation method of a PBO fiber composite material with a high-temperature dielectric property, aims at improving the interfacial force of the composite material on the basis of guaranteeing excellent dielectric property of the PBO fiber cyanate ester composite material, and solves the problems that PBO fiber is smooth in surface and the bonding strength between the surface of the PBO fiber and a resin interface is low. The preparation method comprises the following steps: firstly, preparing a hyperbranched PBO polymer grafting solution; secondly, performing infiltration treatment on a PBO fiber bundle; thirdly, performing deacidification treatment on the PBO fiber bundle; fourthly, performing irradiation grafting treatment on the PBO fiber bundle; fifthly, preparing the PBO fiber cyanate ester composite material. The method has the advantages that the surface of the PBO fiber is grafted with hyperbranched PBO polymer through a Co60 gamma ray irradiation method, the interface bonding strength of the PBO fiber cyanate ester composite material is enhanced, the increased range of the interface strength is 32 to 45.65 percent, the formed PBO fiber cyanate ester composite material has excellent dielectric property, and the method is beneficial to the preparation of structure and function integrated wave-transmitting composite materials.