121results about How to "Moderate adhesion" patented technology

The invention discloses a method for preparing a high-adhesion micro-nano array structure film through wet etching and reverse transfer printing. The method comprises the following steps: with a silver nitrate/hydrofluoric acid solution as a silver deposition solution, depositing a layer of porous silver film on a silicon chip so as to obtain an etching catalytic metal and etching a desired micro-nano array structure in a hydrofluoric acid/hydrogen peroxide solution or potassium hydroxide/isopropanol solution; carrying out soaking with concentrated nitric acid so as to remove the silver film, carrying out air drying and using the treated silicon chip as a template silicon chip; uniformly coating the template silicon chip with organic matter colloid and standing the template silicon chip for a period of time; and placing the template silicon chip on a heating plate after precipitation and uniform distribution of bubbles, heating the template silicon chip at a certain temperature for a period of time, stripping off a colloid film when the colloid completely solidifies and printing a reversed structure of the prepared micro-nano array structure on the colloid film through transfer printing so as to realize preparation of the high-adhesion micro-nano array structure film. The method is simple to operate, has low cost, is not restricted by a preparation area and can be extensively applied to the field of bionic adhesion.

The invention provides a composite substrate for fabrication of flexible display. The composite substrate comprises a hard substrate, wherein a high-temperature resistant flexible substrate layer is arranged on the surface of the hard substrate, a high-temperature resistant thin film layer is arranged between the high-temperature resistant flexible substrate layer and the hard substrate, and the bonding force between the high-temperature resistant thin film layer and the hard substrate is larger than that between the high-temperature resistant thin film layer and the high-temperature resistant flexible substrate layer. In a flexible display thin film transistor (TFT) process of the composite substrate, a flexible substrate and the hard substrate are connected by the high-temperature resistant thin film layer on the hard substrate and a composite layer structure of the high-temperature resistant flexible substrate layer without the adoption of a binding agent, and the bonding force between layers is moderate; the material selects a high-temperature resistant material, so that the mass production of a flexible active matrix/organic light emitting diode (AMOLED) display device by a high-temperature FTF process is achieved; and moreover, the difference of the binding force between layers can be used for facilitating the striping of the flexible substrate after a high temperature.

The invention relates to the technical field of protective films and particularly relates to a self-adhesive EVA (Ethylene-Vinyl Acetate) protective film and a manufacturing process thereof. The self-adhesive EVA protective film is formed by a film which is coextruded and adhered by a base film layer, a middle layer and a self-adhesive layer. Especially, due to the self-adhesive layer, adhesive force of the EVA self-adhesive protective film is moderate, so that the self-adhesive EVA protective film is easily stuck and torn; after the film is stuck, the change of the adhesive force along with the time is small, the self-adhesive EVA protective film can be stuck repeatedly without adhesive failure and residual foreign matters, and can be used in special and large-corner surfaces with a radian and without upwarping; since the specific material combination of the base film layer, the middle layer and the self-adhesive layer is adopted, the impact resistance is also greatly improved; the manufacturing process of the self-adhesive EVA protective film is low in cost and is simple.

The invention relates to a protection film used for the surface of NFC. The protection film comprises a PET base material layer, an adhesive layer arranged on one side of the PET base material layer and a release film layer attached to the adhesive layer. A black ink layer is arranged on the other side of the PET base material layer, the black ink layer is coated with a matte oil layer which is formed by film formation of an organic delustering agent, the black ink layer contains 0.5%-0.8% of aluminum compound, and the mean grain size of the aluminum compound ranges from 0.2 mm to 0.5 mm. The invention further relates to a preparation method of the protection film. The matte oil layer prevents fingerprints and scratches, meanwhile, the protection film has the functions of resisting solvents, achieving heat radiation and the like, and the service life of an NFC chip can be effectively prolonged. In addition, the aluminum compound is added to the black ink layer, waves, interfering with communication message receiving of a mobile phone, sent by the NFC chip can be shielded, it is guaranteed that the adhesive force of the adhesive layer of the protection film is moderate, the protection film can be completely attached to the surface of NFC, and adhesive residues or other pollution cannot be caused to the surface of NFC after the protection film is removed.

Belonging to the field of adhesive preparation, the invention discloses a water-emulsion plant adhesive and its preparation method. The adhesive is formed through polymerization of a monoene hard monomer, a monoene soft monomer, a carbonyl functional monomer, an acrylic crosslinking monomer, an emulsifier, a pH value conditioning agent, an initiator, deionized water, a chain transferring agent, aplasticizing agent and a thickening agent. The vitrification temperature Tg of the adhesive is 15-65DEG C. Compared with current solvent type bicomponent plant adhesives, the adhesive provided in theinvention has the advantages of safety and environmental protection, as well as higher microbead transfer rate.

An ink able to be adhered to and torn from plastic film is disclosed, which can be used to prepare antiforge marker by gravure printing on plastic film. It features that its antiforge pattern can be torn from plastic film, but not produce, so having high antiforge effect.

The invention discloses an ultraviolet curing in-situ polymerization reworkable water-proof sealant and relates to the field of photocuring adhesives. The water-proof sealant comprises the following raw materials: an acrylate resin prepolymer, a reactive diluent, a photoinitiator, filling, a thixotropic agent, wax and a stabilizing agent. The ultraviolet curing in-situ polymerization reworkable water-proof sealant is suitable for various plastic substrates and various irregularly shaped sample pieces and can substitute a silica gel sealing material. At the same time, the ultraviolet curing sealant can be polymerized in situ; a construction process is simple and easy to operate; and full curing can be achieved only within tens of seconds. The cured sealant has moderate adhesive strength tothe substrates and can be reworked easily. After curing, the hardness is Shore A20-80; rupture strength is 2-10Mpa; and breaking elongation is 100-500%.

The coculine hydrochloride cataplasma with raised patient compliance includes coculine hydrochloride as medicine component; matrix comprising water soluble polymer skeleton, stuffing, cross-linking agent, cross-linking regulator, humectant and transdermal promoter; and non-woven fabric as lining layer. The preparation process includes dispersing water soluble polymer in glycerin to obtain phase A; mixing cross-linking agent, cross-linking regulator and small amount of deionized water to obtain phase B; adding transdermal promoter, medicine and sufficient deionized water to obtain phase C; mixing phase an and phase B and adding gradually phase C to obtain mixture; painting the mixture onto the lining layer and covering with anti-sticking layer. The present invention has good skin hydrolyzing effect, proper skin affinity, no pain produced during taking off, no irritation on skin and obvious slowly releasing effect.

The invention discloses environment-friendly repeated-writing paper and a preparation method therefor. According to the environment-friendly repeated-writing paper and the preparation method therefor, a hydroxyl protective group is added into a nano bacterial cellulose suspension with excellent characteristics such as high water absorptivity and water retention ability and good water and air permeability, so as to lower hydrophilicity; a staged reaction is carried out under strong base conditions, so that bacterial cellulose reaches moderate water absorptivity and water retention ability, ink can only be present in a surface layer and be clear in writing while the ink is absorbed, and thus, writing, reading and subsequent handwriting wiping are facilitated; then, a scientifically-compounded dispersant is added, and ultrasonic and high-voltage pulse electric field combined dispersion is carried out, so that a stable and uniform modified bacterial cellulose suspension is obtained; finally, the surface of raw paper is coated with the suspension so as to obtain the writing paper with appropriate ink absorbing uniformity and adhesive power and a dense structure, thus, the writing property of the writing paper can be enhanced, and the clearness of writing is enhanced; and waterproofing and oil-proofing actions can be achieved, most importantly, ink marks on the paper can be erased with a cleanser and the paper can be reused for 40 to 100 times under the condition that the performance of the paper is not affected.

The present invention relates to the technical field of medicines and particularly to a transdermal gel patch for promoting drugs with low skin absorption ability and a preparation method of the transdermal gel patch. The transdermal gel patch comprises (1) an outward-facing backing layer; (2) a gel layer applied on the backing layer; and (3) a removable anti-adhesion layer; and the gel layer contains nano-drugs or drug-loaded mesoporous silica dispersion drugs. Nano drug crystals reduce drug particle size to a nanometer level, surface area is increased, while the drug-loaded mesoporous silicadispersion mainly increases concentration difference between a preparation and a skin layer by amorphously transforming the drugs to increase infiltration capacity, and higher drug utilization rate for transdermal drug administration can be realized. The prepared gel patch is free of skin irritation, has a function of softening stratum corneum, has suitable peeling strength and rheological properties, further promotes transdermal absorption of the drugs, provides new ideas for development of traditional drugs and provides a reference for an application of a modern preparation technology in atransdermal drug administration system.

The present invention provides a release agent composition which can impart moderate adhesion and releasability to the surface of articles such as protective materials for adhesive face of repositional notes, pressure-sensitive adhesive sheets and tapes, release films and release paper, and which has a low environmental burden, and its production process.

The release agent composition of the present invention is characterized by comprising a fluorocopolymer having structural units based on a monomer (a) having a C_1-6 polyfluoroalkyl group and structural units based on a (meth)acrylate (b) having a C_18-30 alkyl group, and a medium.

The invention provides UV cured modified thiol resin nail polish which comprises the following components in parts by weight: 35-55 parts of modified thiol resin, 30-50 parts of an acrylate compound,3-5 parts of a photoinitiator, 1-5 parts of color paste, 0.3-6 parts of a nanometer oxide, 0.1-0.3 part of an essence and 0.5-1 part of a leveling agent. The UV light-cured red nail polish prepared from the components according to the specific ratio is moderate in adhesive force, good in toughness, not prone to brittle fracture, capable of being rapidly cured under UV light irradiation, convenientto use, free of organic solvents and environmentally friendly.

The invention discloses a tripterygium wilfordii hook extract cataplasm and a preparation method thereof. The tripterygium wilfordii hook extract cataplasm provided by the invention contains tripterygium wilfordii hook extract and a substrate, wherein the weight ratio of the tripterygium wilfordii hook extract to the substrate is 1:3-12. The tripterygium wilfordii hook extract cataplasm provided by the invention improves the clinical medication security of the tripterygium wilfordii hook, increases the medicament concentration of the tripterygium wilfordii hook at inflammatory joints, reduces adverse reaction and toxic or side effect caused by medicaments, and has enhanced anti-inflammatory action and reduced blood concentration fluctuation.

The invention discloses a pipeline robot for cleaning gun barrels. The pipeline robot consists of a spiral driving structure, a cleaning module, a control module and an auxiliary camera module, wherein the spiral driving structure consists of a support plate, a driving motor, a spiral driving execution head and a movement retainer; the spiral driving execution head consists of a trisection flange disk, an L-shaped driving wheel bracket, a wheel set and a compression spring; the movement retainer consists of a first disk, a second disk, a fixed support rod, a front support guide wheel mechanism, a rear support guide wheel mechanism and a retainer compression spring; the cleaning module consists of a special cleaning brush and a cleaning fluid spray mechanism; the control module is used for controlling the driving motor and the cleaning fluid spray mechanism to execute a power source and the auxiliary camera module. The pipeline robot for cleaning gun barrels is simple in structure and can be suitable for continuous and smooth movement under working conditions with different inner diameters.

The invention discloses a release agent, a release film, a composite film and an ink-jet printing medium, preparation methods of the release agent, the release film, the composite film and the ink-jetprinting medium, and an application of the ink-jet printing medium. The release agent comprises the following components in parts by weight: 5-7 parts of polyvinyl alcohol, 1-2 parts of silicon dioxide, 4-8 parts of titanium dioxide, 5-10 parts of waterborne polyurethane, 5-10 parts of emulsion wax, 0.5-1.5 parts of a wetting agent, and water, wherein the solid content of the release agent is 15-30%. The preparation method of the release agent comprises the following steps: preparing 8-12% of polyvinyl alcohol water solution, 10-15% of a silicon dioxide dispersion liquid and 20-40% of a titanium dioxide dispersion liquid, and then performing uniform mixing with other components to obtain the release agent. The release film is obtained by coating the release agent on a base material, and performing drying, cooling and stripping, wherein the usage amount of the release agent is 100-130 g/m<2>. The composite film comprises a polymer base film and a release film. The ink-jet printing medium comprises a composite film and a transparent ink-absorbing coating. The release film and the polymer base film have moderate adhesive force, the release effect is good, and the ink-jet printing medium can be identified during printing.

The invention relates to the technical field of protective products, in particular to a composite strippable emulsion, a strippable protective coating and application thereof. The composite strippableemulsion is prepared from the following raw materials: acrylic acid self-film-forming emulsion and acrylic acid self-crosslinking emulsion in a weight ratio of (65-85): (10-25). The composite strippable emulsion has relatively strong cohesion, the protective coating is not liable to break in the stripping process and has no residue on the base material; in addition, the adhesive force between thecomposite strippable emulsion and a base material is moderate, good adhesion of a coating film to a base material can be ensured, a product is effectively protected from being damaged in the transportation process, the product can be easily stripped off when stripping is needed, the glossiness of the surface of the base material such as woodware, metal, glass, plastic and concrete is not reduced,and the comprehensive performance of the base material is not influenced. In addition, the composite strippable emulsion can be independently used, and can also be compounded with a surface coating for use.

The invention provides an ink composition, a package structure and a semiconductor device. The ink composition comprises a photocurable silicon-containing monomer component, an active diluent component and a photoinitiator component, wherein the photocurable silicon-containing monomer component is a photocurable silicon-containing monomer or a combination of a plurality of photocurable silicon-containing monomers; each photocurable silicon-containing monomer has a structural formula as shown in the specification; and in the structural formula, at least one of A1 and A2 is an acrylate group, and at least one of A1 and A2 is an epoxy group. Monomers containing two functional groups, i.e., acrylate and epoxy, are mixed for use, so a free radical-cation hybrid curing system can be formed; andthe material integrating the advantages of the acrylate and epoxy photocurable silicon-containing monomers is obtained, and an organic barrier layer with a high photocuring rate, a low curing shrinkage rate and moderate base material adhesive force and hardness is achieved. Therefore, requirements on a packaging film in the prior art are better met.

The invention discloses a helical driving structure for a gun barrel duct cleaning robot. The helical driving structure consists of a support plate, a driving motor, a spiral driving actuating head and a motion cage, wherein the driving motor is arranged on the support plate through a motor fixing seat; the spiral driving actuating head is fixed on an output shaft of the driving motor; the spiral driving actuating head consists of a trisection flange disc, an L-type driving wheel bracket, a wheel set and a compression spring; the motion cage consists of a first disc, a second disc, a fixed support rod, a front support guide wheel mechanism, a rear support guide wheel mechanism and a cage compression spring. The helical driving structure for the gun barrel duct cleaning robot is simple in structure, and can continuously move stably under different inner diameter conditions.

The invention relates to a polystyrene-polyacrylate-polyurethane-unsaturated polyester copolymer and a preparation method thereof. The copolymer comprises residues of methyl-(4-hydromethycyclohexyl) methyl acrylate; the number average molecular weight of the copolymer is 5,000-70,000; the molecular weight is distributed below 3. The polystyrene-polyacrylate-polyurethane-unsaturated polyester copolymer can be used for forming a peelable protective material; the peelable protective material can be quickly peeled off in a whole piece, and is free of residues after being peeled, particularly remarkable in shrinkage resistance and high temperature resistance, non-sticky, free of fogging, and high in chemical reagent resistance.

The invention discloses chip laminating equipment, which is used for laminating a chip. The chip laminating equipment comprises a main worktable, and a feeding and tray placing module, a dispensing module, a carrier plate conveying module, an overturning module and an attaching module which are mounted on the main worktable, the feeding and tray placing module is used for placing a chip base at a preset feeding position, locating and detecting the chip base, and placing the located and detected chip base in a transfer tray, the dispensing module is used for locating and detecting the height of the placed chip base, performing dispensing operation on the chip base and conveying the dispensed chip base to the overturning module, the overturning module is used for overturning the chip base. The carrier plate conveying module is used for conveying a carrier plate on which a chip is mounted to the attaching module and conveying a carrier plate on which a chip base is not attached to a next attaching device, and the attaching module is used for attaching the overturned chip base to the chip of the carrier plate.