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36results about How to "Difficult to exercise" patented technology

Preparation method of super-heat-resistant and high-heat-conductivity epoxy plastic encapsulating material for encapsulating semiconductor

The invention provides a preparation method of a super-heat-resistant and high-heat-conductivity epoxy plastic encapsulating material for encapsulating a semiconductor. The plastic encapsulating material contains the following raw material components in parts by weight: 45-127.5 parts of epoxy resin, 60-300 parts of a curing agent, 3.75-10.35 parts of an ion capturing agent, 3.9-15 parts of a low-stress modifying agent, 3-6.75 parts of a coupling agent, 0.9-9 parts of an accelerant, 525-672.25 parts of a solid filler, 3-12 parts of a demolding agent, 2.25-5.25 parts of a flame retardant and 1.5-2.25 parts of a coloring agent. According to the method, an epoxy plastic encapsulating material mixture is subjected to pretreatment and high-speed dispersion and is added into an open mill to be mixed, and a premixing manner is changed, so that the mixing uniformity of the raw materials can be effectively improved, and particularly the uniformity of the added components with relatively small contents is improved. The main differences between the mixing method and the existing technical scheme are that the use operability of a product at a client is well improved, besides, the mixing of thecomponents is promoted, the stability of the product is relatively good, and the prepared epoxy plastic encapsulating material has an extremely high glass transition temperature and a relatively highheat conductivity coefficient.
Owner:江苏中科科化新材料股份有限公司

Super heat resistance and high heat conduction epoxy molding compound used for semiconductor packaging

The invention provides a super heat resistance and high heat conduction epoxy molding compound used for semiconductor packaging. The super heat resistance and high heat conduction epoxy molding compound used for semiconductor packaging comprises the following components in parts by weight: 45 to 127.5 parts of epoxy resin, 60 to 300 parts of a curing agent, 3.75 to 10.35 parts of an ion trapping agent, 3.9 to 15 parts of a low stress modifier, 3 to 6.75 parts of a coupling agent, 0.9 to 9 parts of an accelerant, 525 to 672.25 parts of a solid filler, 3 to 12 parts of a releasing agent, 2.25 to5.25 parts of a fire retardant and 1.5 to 2.25 parts of a coloring agent. In the super heat resistance and high heat conduction epoxy molding compound used for semiconductor packaging provided by theinvention, ester ring epoxy resin, heterocyclic ring epoxy resin, naphthalene ring epoxy resin and multifunctional group epoxy resin are added as a resin matrix, the resin is of a rigid structure, amolecular chain is unlikely to move, and simultaneously the cross-linking density after the resin is cured can be enlarged due to the fact that the resin is of a multifunctional structure, so that theeffect of increasing the glass-transition temperature of the material is reached, and the heat resistance of the material is improved.
Owner:江苏中科科化新材料股份有限公司

Monoamine-terminated ultrahigh-frequency low-dielectric main chain benzoxazine copolymer oligomer, copolymer resin and preparation method thereof

PendingCN110818868AReduce the molecular chain lengthIncrease polarityPolymer scienceOligomer
The invention relates to a monoamine-terminated ultrahigh-frequency low-dielectric main chain benzoxazine copolymer oligomer, copolymer resin and a preparation method thereof. The preparation method of the main chain benzoxazine copolymer oligomer comprises the following steps: adding an aldehyde compound, an amine compound and a dihydric phenol compound into a reaction container in a one-time charging or multi-step and multi-time charging manner, adding an organic solvent to dissolve and react, and carrying out post-treatment to obtain the main chain benzoxazine copolymer oligomer. The copolymer oligomer disclosed by the invention has good processability; the copolymer resin obtained by heating and curing not only retains the high crosslinking density of the pure main chain benzoxazine resin, but also has the advantages of better thermal property, toughness and the like, has low dielectric constant and dielectric loss at ultrahigh frequency, and can be used as a dielectric material tobe applied to multiple fields of ultrahigh frequency and high-speed circuit board substrates and the like. Part of monoamine-terminated oligomers containing cross-linking groups can be further cross-linked, so that more excellent thermal properties and dielectric properties are obtained.
Owner:淮北绿洲新材料有限责任公司

Double-layer inward-retreating type printing and dyeing waste gas treatment equipment

The invention discloses double-layer inward-retreating type printing and dyeing waste gas treatment equipment, belonging to the field of waste gas treatment. According to the double-layer inward-retreating type printing and dyeing waste gas treatment equipment in the invention, an inward bead plate is arranged, an inward-retreating elastic layer is gradually compressed under the action of exhaustgas, so more and more parts of a winding triangular blade expose out of the inward-retreating elastic layer, the capability of intercepting and winding fluff fibers is stronger, and pressure in intercepting impurities such as batting fibers by an arc-shaped filter screen is effectively relieved; and thus, under the condition of long-time use, good fluff fiber intercepting capability can still be maintained, and the situation that the interception efficiency becomes worse and worse along with the prolonging of service time is effectively avoided. Meanwhile, wind power can be blown to a double-layer filter screen, and the wind power is controlled to be variable, so batting fibers can be continuously rubbed with the winding triangular blade and are thus cut apart and loosened, cleaning difficulty is remarkably reduced, and the influence on printing and dyeing waste gas treatment efficiency is reduced.
Owner:绍兴泓钰印染有限公司

Electroosmosis multi-pulse seepage-proofing and humidifying system

The invention relates to an eectroosmosis multi-pulse seepage-proofing and humidifying system. The system comprises a multi-pulse seepage-proofing and humidifying system controller, a wiring distribution box, an environmental temperature and humidity sensor, an object temperature and humidity sensor, a negative copper-plated bar and a positive titanium metal wire, wherein the multi-pulse seepage-proofing and humidifying system controller, the environmental temperature and humidity sensor, the object temperature and humidity sensor, the negative copper-plated bar and the positive titanium metalwire are electrically connected with the wiring distribution box.
Owner:SHENYANG GUOJIAN XINTEC TECH DEV

2, 6-naphthalic acid-based copolyester material and preparation method thereof

The invention provides a 2, 6-naphthalic acid-based copolyester material and a preparation method thereof, and the structural formula of the material is composed of structural units represented by a general formula (1) and a general formula (2). The invention also provides a preparation method of the 2, 6-naphthalic acid-based copolyester material. According to the invention, 2, 6-naphthalic acid (2, 6-naphthalic acid diester compound), 2, 5-thiophenedicarboxylic acid (2, 5-thiophenedicarboxylic acid diester compound) or 2, 5-furandicarboxylic acid (2, 5-furandicarboxylic acid diester compound) and diol are subjected to direct esterification or ester exchange reaction to prepare the copolyester material, and the bio-based monomer 2, 5-thiophenedicarboxylic acid (2, 5-thiophenedicarboxylic acid diester compound) or 2, 5-furandicarboxylic acid (2, 5-furandicarboxylic acid diester compound) can easily increase the bio-based content of the 2, 6-naphthalic acid-based polyester, improve the toughness, and improve the barrier property.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

A network information transmitter

The invention discloses a network information transmitter, comprising a data line, the top of the data line is fixedly connected to an organic body, the lower surface of the body is fixedly connected with a bracket, and the top of the bracket is provided with an interface. The invention relates to network information Transmission technology field. The network information transmitter, by setting the body, when the equipment is in use, the data line and the interface are responsible for the transmission of the data signal, the electronic components are fixedly installed on the upper surface of the support plate, the dust removal device at the bottom of the partition plate rotates, and the air outside the equipment flows from The gap of the bracket enters the inside of the air cooling device, the external cold air passes through the partition and the support plate from bottom to top, the cold air flows over the outer surface of the electronic components, the cold air is heated, and the hot air is discharged from the air outlet. The liquid cooling device can also convert a part of the heat. Under the combined action of air cooling and liquid cooling, the heat inside the device can be quickly dissipated outwards, which solves the problem of slow heat dissipation of traditional network information transmitters.
Owner:徐州恒远高新技术有限公司

Intelligent universal treadmill based on VR technology

The invention discloses an intelligent universal treadmill based on a VR technology, and belongs to the field of treadmills. The invention discloses an intelligent universal treadmill based on a VR technology. The treadmill comprises a treadmill body, a running belt body is connected to the treadmill body. A damping device, a universal rotating device and VR virtual equipment are arranged in the running belt body. The lower end of the running belt body is fixedly connected with a plurality of universal wheels; a steering integrated control module is fixedly connected to the running belt body.The running belt body is fixedly connected with a somatosensory sensing module. The universal rotating device, the somatosensory sensing module, the steering integrated control module and the universal wheels are all electrically connected. According to the intelligent treadmill, the direction can be easily adjusted, a sporter can observe changes of surrounding conditions all the time while doingexercises, the sporter can simply communicate with the adjacent sporter, and the interactivity of the treadmill is improved.
Owner:仇加海

Novel retarding type high-performance water reducing agent and preparation method thereof

PendingCN113387607AAchieve moderate crosslinkingIncrease the degree of cross-linkingSuperplasticizerMixed solution
The invention belongs to the technical field of building materials, and particularly relates to a novel retarding type high-performance water reducing agent and a preparation method thereof. The product developed by the invention comprises carboxylic acid type waterborne polyurethane, wherein the carboxylic acid type waterborne polyurethane is obtained by carrying out a cross-linking reaction on isocyanate and a polycarboxylic acid water reducing agent; the carboxylic acid type waterborne polyurethane is subjected to a cross-linking reaction to form a three-dimensional cross-linked network; and the three-dimensional cross-linked network is filled with nano silicon dioxide. The preparation method comprises the steps of mixing a polycarboxylate superplasticizer and a chain extender, carrying out vacuum dehydration, adding isocyanate, dimethyl pyrrolidone and a catalyst, carrying out a heating reaction, adding a cross-linking agent and tetraethoxysilane, and continuing the heating reaction to obtain a mixed solution; and naturally cooling the mixed solution to 60-65 DEG C, and then adding alkali liquor for neutralization in a stirring state to obtain the product. The product obtained by the invention can effectively inhibit the adsorption and interference of clay on the water reducer in the use process of the product.
Owner:广西交建工程检测咨询有限公司 +1

A super heat-resistant, high thermal conductivity epoxy molding compound for semiconductor packaging

The invention provides a super heat-resistant and high thermal conductive epoxy plastic sealing compound for semiconductor packaging, which contains the following components: 45-127.5 parts by weight of epoxy resin, 60-300 parts by weight of curing agent, and 3.75-10.35 parts by weight of ion trapping agent , 3.9-15 parts by weight of low stress modifier, 3-6.75 parts by weight of coupling agent, 0.9-9 parts by weight of accelerator, 525-672.25 parts by weight of solid filler, 3-12 parts by weight of mold release agent, 2.25 parts by weight of flame retardant -5.25 parts by weight, 1.5-2.25 parts by weight of colorants. In the super-heat-resistant and high-thermal-conductivity epoxy molding compound for semiconductor encapsulation provided by the present invention, ester ring epoxy resin, heterocyclic epoxy resin, naphthalene ring epoxy resin, and multifunctional epoxy resin are added as resins. Matrix, this kind of grease has a rigid structure, which makes the molecular chain difficult to move. At the same time, because the resin has a multifunctional structure, it can increase the crosslinking density after curing of the resin, thereby achieving the effect of increasing the glass transition temperature of the material and increasing the heat resistance of the material. .
Owner:江苏中科科化新材料股份有限公司

A double-layer internal retreat type printing and dyeing waste gas treatment equipment

ActiveCN111760394BGood ability to intercept entangled wool fibersRelieve stressDispersed particle filtrationTransportation and packagingFiberExhaust fumes
The invention discloses a double-layer inward retreat type printing and dyeing waste gas treatment equipment, which belongs to the field of waste gas treatment. A double-layer inward retreat type printing and dyeing waste gas treatment equipment, through the arrangement of inward bead boards, under the action of waste gas, the inner retreat elastic layer is gradually compressed , so that more and more parts of the winding triangular edge are exposed to the inner retreating elastic layer, which in turn makes the ability to intercept the winding fluff fibers stronger, thereby effectively relieving the pressure of the arc-shaped filter screen to intercept impurities such as fluff fibers, so that it can be used for a long time Under the condition of use, it can still maintain a good ability to intercept fluff fibers, effectively avoiding the situation that the interception efficiency becomes worse and worse with the extension of use time. At the same time, the double-layer filter can be blown by wind and controlled The wind force fluctuates, which can make the floc fiber continuously rub against the winding triangular blade and be split, making it loose, significantly reducing the difficulty of cleaning and reducing the impact on the efficiency of printing and dyeing waste gas treatment.
Owner:绍兴泓钰印染有限公司

Nanochannel detecting antigen-antibody specific binding and preparing method and detecting method thereof

The invention provides a nanochannel with a nanocage structure. The nanochannel comprises a top SiN film layer, a middle SiO2 interlayer and a bottom SiN film layer which form a sandwich structure, wherein a small nanopore with area slightly larger than the maximum sectional area of antigen to be detected and smaller than the minimum sectional area of antibody to be detected is machined on the top SiN film layer, a large nanopore with diameter larger than that of the small nanopore is machined on the bottom SiN film layer and located at a position aligned with the small nanopore in the axial direction, and SiO2 between the small nanopore and the large nanopore is corroded into a hollow nanocage structure; two liquid bath units filled with ionic solution are connected to the two ends of the nanochannel with a nanocage structure, and the antigen and the antibody are added into the same liquid bath next to the small nanohole. When ionic current change is detected under both forward and reverse voltage, it is concluded that specific binding of the antigen and the antibody is not achieved. When ionic current change is detected under forward voltage only, it is concluded that specific binding of the antigen and the antibody is achieved, and then identifying detection of antigen or antibody molecules can be achieved.
Owner:SOUTHEAST UNIV

A Sectional Joint Structure of Prefabricated Underground Diaphragm Wall

The invention discloses a segmented joint structure of a prefabricated underground continuous wall, which belongs to the field of continuous walls. When pouring concrete, the carbon dioxide aqueous solution in the liquid storage ball is shaken to promote the carbon dioxide to overflow into the straight cylinder, and the piston is pushed to squeeze the fixed pipe and extend to the At the same time, when the flexible sheet is squeezed to the vertical state, the two oblique rods are driven to squeeze the reed, so that the limit block extends into the limit groove seat, and punctures the film, so that the wet water The sticky layer becomes viscous when it encounters water, which promotes the tight adhesion and fixation of the limit block and the limit groove seat, strengthening the connection stability, and the stretching capsule is stretched along with the reed, so that the thick rod pulls the moving plate and the pulling rod to move , prompting the phase change support rod to be stretched, and under the action of tension, it changes from soft to hard to form a rigid support rod, which not only effectively slows down the impact of concrete pouring, but also prevents the adhesion of the limit block and the limit slot seat. The limit provides support firmness and enhances connection stability.
Owner:GUANGDONG YUANTIAN ENG

Network information transmitter

The invention discloses a network information transmitter which comprises a data line, the top end of the data line is fixedly connected with a machine body, the lower surface of the machine body is fixedly connected with a support, and the top of the support is provided with an interface. According to the network information transmitter, by arranging the machine body, when equipment is used, a data line and an interface are responsible for data signal transmission, electronic components are fixedly installed on the upper surface of a supporting plate, a dust removal device at the bottom of a partition plate rotates, and air outside the equipment enters an air cooling device from a gap of a support; external cold air penetrates through the partition plates and the supporting plates from bottom to top, flows through the outer surfaces of the electronic components and is heated, hot air is exhausted from the air outlets, meanwhile, the liquid cooling device can also convert part of heat, under the combined action of air cooling and liquid cooling, the heat in the equipment can be rapidly dissipated outwards, and the heat dissipation efficiency is improved. The problem that a traditional network information transmitter is low in heat dissipation speed is solved.
Owner:徐州恒远高新技术有限公司

High-pressure dynamic sealing structure applicable to gearbox

PendingCN109611535AImprove sealingHigh axial bearing capacityEngine sealsGearing detailsEngineeringCylinder block
The invention discloses a high-pressure dynamic sealing structure applicable to a gearbox. The structure comprises a piston, a cylinder block, a hole-purpose combined seal ring, a shaft-purpose combined seal ring, a pressure plate used for limiting the axial position of the piston, a combined spring, a hole-purpose circlip used for limiting the axial position of the pressure plate, and a baffle used for pressing the hole-purpose circlip so as to stop deformation of the hole-purpose circlip. The piston moves relative to the cylinder block; a piston cavity is formed between the piston and the cylinder block; the ole-purpose combined seal ring and the shaft-purpose combined seal ring are mounted between the piston and the cylinder block and located on the two sides of the piston cavity correspondingly; the hole-purpose circlip is mounted on the cylinder block; the hole-purpose combined seal ring comprises a hole-purpose start-shaped seal ring body and two hole-purpose sealing baffles; andthe shaft-purpose combined seal ring comprises a shaft-purpose star-shaped seal ring body and two shaft-purpose sealing baffles. The high-pressure dynamic sealing structure applicable to the gearboxis high in sealing performance and high in axial force bearing capacity.
Owner:NANJING HIGH SPEED GEAR MFG
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