5726 results about "Silicone" patented technology

The invention relates to an automobile paint surface protective film agent and a preparation method thereof, and belongs to the technical field of automobile beauty. The automobile paint surface protective film agent is prepared from the following raw materials: amino functional polysiloxane, fluorine modified acrylic resin, epoxy modified organic silicon emulsion, functional filler, a surfactant, hydrophobic modified silicone oil, a brightening agent, a penetrating agent, a cosolvent and deionized water, and the raw materials are blended to prepare the automobile paint surface protective film agent. The functional filler is prepared by firstly carrying out surface modification on a polymer and then carrying out click chemistry on dodecanethiol on hydroxylated nano silicon dioxide, and the polymer is prepared by carrying out nucleophilic addition on poly (ethylene glycol) methacrylate Mn360, poly (ethylene glycol) methacrylate Mn500 and isophorone diisocyanate. The automobile paint surface protective film agent is high in film forming speed, a formed film layer has the characteristic of multiple effects, and meanwhile, the wear resistance is also very good.

The invention relates to the field of new energy battery buffer parts, in particular to an anti-static foaming silica gel buffer part for a new energy battery and a preparation method of the anti-static foaming silica gel buffer part. The anti-static foaming silica gel buffer part is prepared by mixing and foaming anti-static mixed rubber, a foaming agent, hydrogen-containing silicone oil, an inhibitor and a platinum catalyst, the anti-static rubber compound is prepared from the following raw materials in percentage by weight: 37-50% of methyl vinyl silicone rubber raw rubber, 38-45% of white carbon black, 8-15% of anti-static filler and 1-3% of hydroxyl silicone oil; the antistatic filler is composed of an antistatic agent and a silane-containing active agent; the antistatic agent is composed of acetylene carbon black and a single-walled carbon nanotube. Under the action of the silane-containing active agent, the acetylene carbon black and the single-walled carbon nanotubes are interwoven to form a stable supporting antistatic skeleton structure, so that static electricity can be effectively conducted, static electricity accumulation is avoided, the structure is kept stable in long-term use, and the compression resilience and antistatic durability of the buffer part are ensured.

The invention discloses a low-stress assembly structure of an off-axis two-reflector system. The low-stress assembly structure comprises a large-caliber off-axis parabolic reflector clamping mechanism, a small-caliber off-axis parabolic reflector clamping mechanism and a connecting long plate, the large-aperture reflector realizes flexible surface contact support by adopting a hook surface magic tape, the back of the large-aperture reflector protrudes out of the magic tape, the mass of the protruding part of the back and the mass of non-uniformly distributed paraboloids are balanced, and the gravity deformation of the paraboloids is effectively weakened. The small-caliber reflector realizes V-shaped contact clamping through two cylindrical pins which are arranged at an angle of 120 degrees, and the back of the small-caliber reflector also protrudes out of the cylindrical pins. The two clamping mechanisms both adopt a composite constraint mode of rotation limiting of a plane-parallel block, movement limiting of a flexible jackscrew and back silica gel gluing. The two mechanisms are rigidly connected into a whole through the long connecting plate. Through the back protruding supporting design and the flexible constraint mechanism, surface shape distortion caused by clamping stress and self weight is reduced, and the system stability and the optical performance are improved.

The invention discloses a sulfydryl silicon resin, a UV light-cured organic silicon optical adhesive as well as a preparation method and application thereof. The optical adhesive comprises sulfydryl silicon resin, vinyl polysiloxane and a photoinitiator, the molar ratio of sulfydryl in the sulfydryl silicon resin to vinyl in the vinyl polysiloxane is (1.2-1.5): 1; the molar ratio of vinyl in the vinyl polysiloxane to the photoinitiator is 1: (0.3-1.8). The optical adhesive disclosed by the invention can be subjected to rapid photocuring based on a click reaction of sulfydryl-vinyl, the preparation method of the optical adhesive does not need a solvent, and compared with conventional OCA, the optical adhesive has a certain filling advantage in the aspect of a full-lamination process, also has relatively high binding power, relatively low stress relaxation rate and excellent creep recovery rate, and can be used for preparing the optical adhesive. Therefore, the optical adhesive is especially suitable for flexible display application scenes represented by folding screens.

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

The invention belongs to the technical field of secondary batteries, and discloses a polyurethane acrylate emulsion and a secondary battery. The polyurethane acrylate emulsion comprises water and a polymer dispersed in the water; the polymer comprises a core and a shell, the shell covers the core, the core comprises water, and the shell comprises urethane acrylate; the polyurethane acrylate comprises a polyurethane unit and a polyacrylate unit, and the polyacrylate unit comprises an organic silicon chain segment; on the basis of the mass of the polyurethane acrylate, the mass content of the organic silicon chain segment is 0.1%-10%. The polyurethane acrylate emulsion provided by the invention has the characteristics of high bonding strength, electrolyte corrosion resistance and good dispersity to a conductive agent, and when the polyurethane acrylate emulsion is used as a silicon-based negative electrode binder, the polyurethane acrylate emulsion can effectively cope with large volume change of a silicon-based material, the problem of interface failure of a silicon-based negative electrode is solved, and the cycle performance and the dynamic performance of a battery are improved.

A shoe or other footwear has a non-removable multi-layer foot-support member (FSM) embedded within the sole. The uppermost layer is a breathable, stretchable textile configured for direct contact with the foot, offering softness and elasticity. Directly beneath it is a containment layer made of elastic fabric partially infused or impregnated with silicone, which stabilizes and restrains the granular contents below. The central layer includes one or two or three sealed chambers filled with a cured mixture of silicone and polymeric granules, forming a deformable medium that yields under pressure and mimics natural granular terrain or sand. Beneath this is a synthetic textile layer that restricts lateral expansion of the granular mixture, and preserves chamber geometry during use. The bottom component is a semi-rigid base that structurally supports and anchors all overlying layers.

The invention relates to the field of optical display and material engineering, in particular to a silica gel integrated optical film with a 3D light splitting function and a manufacturing method of the silica gel integrated optical film. A silica gel integrated optical film with a 3D light splitting function comprises a transparent optical base material and a microstructure layer, and the microstructure layer is combined on the surface of the transparent optical base material in an integrated forming mode. And the microstructure layer is an anhydrous silica gel-resin composite material obtained by combining organic silica gel with low refractive index and resin with high refractive index through an anhydrous chemical reaction system. The optical film obtained in the invention has excellent interface bonding stability and long-term reliability, the overall thickness of the optical film is small, the optical loss is reduced, the light transmittance is higher, and the overall transmittance can reach 93% or above. And the manufacturing process integration degree and the mold repeated utilization rate are high, the industrial batch production requirement can be met, and the excellent industrial application prospect is achieved.

The invention discloses a hydraulic drive double-joint flexible mechanical arm structure. The mechanical arm mainly structurally comprises a mechanical arm body formed by connecting two sets of flexible joint modules in series, each set of joint module comprises three silica gel flexible actuators which are evenly distributed on the circumference, the two ends of each actuator are detachably connected with a supporting disc through a cross beam structure, and sealing rings are arranged at the connecting positions for sealing. The driving system drives the actuators to stretch out and draw back in the axial direction by independently controlling the internal water pressure of the actuators so as to achieve multi-degree-of-freedom movement. In order to restrain radial expansion caused by water pressure, the executors are sleeved with chinlon woven sleeves to serve as restraint layers, and limiting piece structures are arranged between the executors. Through the modular series design and the optimized water pressure driving and radial constraint structure, the adaptability, the movement performance, the sealing reliability and the anti-interference capacity of the mechanical arm are effectively improved, and the mechanical arm is suitable for operation in complex environments such as underwater environments.

The invention relates to the technical field of functional coatings, in particular to an environment-friendly water-based strippable coating and a preparation method thereof.The environment-friendly water-based strippable coating is prepared from, by mass, 25%-45% of film-forming resin, 8%-20% of a stripping functional component, 10%-25% of a filler system, 3%-8% of a functional additive and the balance water, the stripping functional component is a ternary system of a wax emulsion, organic silicon modified acrylate and a fluorocarbon modified polymer, through collaborative design of the components, controllable stripping, no residue and no damage of a coating on various base materials such as metal, plastic and glass are achieved, meanwhile, the coating has excellent water resistance, weather resistance and environmental protection performance, and the coating can be widely applied to various substrates such as metal, plastic, glass and the like. The method is suitable for temporary protection in the fields of automobiles, electronics, precise instruments and the like.

The invention discloses a high-temperature-resistant high-stripping organic silicon pressure-sensitive adhesive and a preparation method thereof, and relates to a pressure-sensitive adhesive and a preparation method thereof. The invention aims to solve the problems of insufficient temperature resistance, low peel strength and poor binding force with a base material of the existing organic silicon pressure-sensitive adhesive. According to the invention, phenyl siloxane rubber, hydroxyl-terminated polysiloxane and methyl vinyl MQ silicon resin are used as basic raw materials, and polysilazane is used as a heat-resistant modifier to carry out heat-resistant modification on the chemical structure of the pressure-sensitive adhesive; a trifunctional allyl silane monomer is added in the film preparation process, so that the crosslinking density of the system is improved, and the heat resistance of the pressure-sensitive adhesive is further improved; the bonding force between the pressure-sensitive adhesive and a polyimide substrate is improved by adding the peroxysilane coupling agent, and the use of a primer in the coating process is omitted; by adding the hydroxyl MQ silicon resin and the phosphate adhesion promoter, the bonding strength of the pressure-sensitive adhesive is improved, and the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive is prepared. According to the invention, the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive can be obtained.

The invention relates to the technical field of protective film preparation, and particularly discloses an antistatic silica gel protective film and a preparation method thereof.The protective film comprises a base material layer and an antistatic coating coated on the surface of the base material layer; the base material layer is prepared from methyl vinyl silicone rubber, modified fumed silica, a compound antistatic agent A and a vulcanizing agent, and the antistatic coating is prepared from a compound antistatic agent B and water-based acrylic resin. The preparation method comprises the following steps: banburying, calendering and vulcanizing a compound antistatic agent A, methyl vinyl silicone rubber and modified fumed silica to form the base material layer; and finally, mixing the compound antistatic agent B with water-based acrylic resin to prepare an antistatic coating solution, coating the surface of the base material layer with the antistatic coating solution, and drying and curing to obtain a finished product. The silica gel protective film prepared by the invention has excellent antistatic property, mechanical property, adhesive force and high light transmittance, and is suitable for the fields of electronic equipment screens, optical lenses and the like.

A method of manufacturing a surgical instrument that includes a tissue contacting surface operable to apply ultrasonic energy or RF energy to tissue. The method includes applying a hydrophobic coating that includes silicone to a base surface of the tissue contacting surface to form an applied coating layer having a coating application thickness. The method also includes removing portions of the applied coating layer with a resiliently biased mechanical coating removal tool to form a plurality of removed portions of coating. A removal depth of each removed portion of the plurality of removed portions can each be from 50% to 100% of the coating application thickness such that from 10% to 50% of the applied coating layer is removed from the base surface.

The invention discloses a low-temperature curing photoresist applied to a flexible display panel and a preparation method of the low-temperature curing photoresist, and belongs to the technical field of energy conservation and environmental protection. The photoresist is prepared by compounding a reactive organic-inorganic mixed nano filler, a photosensitive resin matrix, a benzocyclobutenyl silicone oligomer (BSA resin) and an additive. The preparation method comprises the following steps: preparation and surface modification of the nanofiller; synthesizing a photosensitive resin matrix; compounding the oligomer with an additive; dispersing the slurry and adding a nano corrugated template; spin coating, ultraviolet pre-curing, low-temperature baking and heat post-curing are carried out. The curing temperature of the photoresist is lower than 120 DEG C, the resolution ratio is superior to 3 microns, and the bending tolerance frequency is gt; the adhesion strength is gt after 20000 times; 15 Kgf / cm < 2 >, and the water vapor permeability is lt; 10 <-6 >, heat resistance gt; the temperature is 150 DEG C, and the dielectric constant is lt; 3.5, VOC (Volatile Organic Compounds) emission lt; the organic light-emitting material has excellent flexibility, thermal stability and environmental protection performance, is suitable for a pixel definition layer of an OLED flexible display panel, and improves the light extraction efficiency and the anti-fatigue performance.

The invention provides fine grid slurry and a preparation method thereof, a solar cell and a photovoltaic module. The fine grid slurry is prepared from the following components in parts by weight: 50 to 65 parts of silver powder, 15 to 25 parts of silver modified nickel-coated copper powder, 2 to 5 parts of alloy powder, 2 to 5 parts of glass powder, 0.5 to 2 parts of aluminum oxide, 10.5 to 17.5 parts of organic carrier and 0.5 to 1.8 parts of additive, the silver-modified nickel-coated copper powder comprises a copper inner core, a nickel coating layer and a silver coating layer, wherein the outer surface of the copper inner core is sequentially coated with the nickel coating layer and the silver coating layer from inside to outside. The alloy powder comprises Ni element, B element and Si element; the aluminum oxide is spherical nano aluminum oxide; the organic carrier comprises organic silicon modified acrylic resin and epoxy resin. According to the fine grid slurry, the raw material cost is remarkably reduced, the process compatibility is good, silk-screen printing can be better supported, and the photoelectric conversion efficiency of a photovoltaic module can be better improved.

The invention discloses a polypropylene composite material as well as a preparation method and application thereof. The polypropylene composite material comprises the following components in parts by weight: 50-80 parts of polypropylene resin; 4-10 parts of high density polyethylene; 5-15 parts of a polyolefin elastomer; 10 to 20 parts of talcum powder; 1 to 4 parts of polypropylene grafted polysiloxane; and 0.05 to 0.3 part of a beta crystal form nucleating agent. According to the polypropylene composite material disclosed by the invention, polypropylene is grafted with high-molecular-weight polysiloxane, and a specific nucleating agent is added, so that the crystal form of polypropylene is optimized, a more uniform microstructure is formed, a large spherocrystal boundary is reduced, a more uniform dispersion environment is provided for silicone molecules, local enrichment is avoided, and the mechanical property of the polypropylene composite material is improved. Therefore, the injection molding floating problem is effectively improved, and meanwhile, the high scratch resistance of the material is guaranteed. The high-performance polypropylene composite material which has excellent scratch resistance and good appearance at the same time is realized.

A paper towel holder may include a post, a base assembly that includes diatomaceous earth, and a locking mechanism that secures the post to the base assembly. The locking mechanism may include a plurality of locking stakes with locking notches and a twist lock having slots and locking extensions that selectively engage with the locking stakes and the locking notches. The post may be a hollow post and may include a top cap that is secured to the top end with a friction fit. The base assembly may include a lower base and a top shell, and the top shell may include diatomaceous earth. The lower base may include a metal slab that is overmolded with silicone or another polymer having a Shore A durometer of between about 20 and about 70. The top shell may include a flat upper surface and a downward-extending perimeter sidewall.

The present invention is an addition-curable silicone composition containing components (A) to (C): (A) An addition reaction product of an organopolysiloxane represented by formula (1) and a compound represented by formula (2), the addition reaction product having two addition-reactive carbon-carbon double bonds per molecule. (1) (R1 is a C1-12 monovalent hydrocarbon group, R2 is a methyl group or a phenyl group, a is an integer of 0-50, and b is an integer of 0-300. ), (2) (R3 represents a C1-12 divalent hydrocarbon group.), (B) an organosilicon compound having a hydrogen atom bonded to at least two silicon atoms per molecule, and (C) a hydrosilylation reaction catalyst. Thus, provided are an addition-curable silicone composition that has high transparency and a high refractive index and yields a cured product having high strength and high elongation and a highly reliable optical semiconductor device sealed by a cured product thereof.

A peelable coating composition is provided. The composition may be applied onto a substrate surface and then it dries / cures to a peelable coating. The composition comprises an aqueous vinyl (meth)acrylic-based copolymer emulsion binder in combination with a silicone polyether copolymer and optionally one or more additives. The resulting peelable coating provides temporary protection to articles and / or substrates during a period of construction, storage or transportation or the like, and is designed to be water-resistant such that it is able to continue protecting substrates after periods of time in the open-air, exposed to the elements, e.g., rain, etc. A method is also provided.

The invention belongs to the technical field of high-molecular polymers and functional coatings, and particularly relates to a water-based high-molecular composite sound-absorbing and sound-insulating coating and a preparation method thereof. The composite sound-absorbing and sound-insulating coating comprises the following components in parts by weight: 20-40 parts of silicone acrylic emulsion; 15-30 parts of a porous sound-absorbing filler; 20-40 parts of a high-density sound insulation filler; 5 to 10 parts of cross-linked acrylate coated butyl rubber core-shell emulsion; 1-8 parts of a functional auxiliary agent; and 10 to 25 parts of deionized water. Through cooperative use of the porous sound-absorbing filler, the high-density sound-insulating filler and the butyl rubber elastic damping material, the sound-absorbing coefficient and the sound-insulating amount of the coating can be synergistically improved. Core-shell coating treatment is carried out on butyl rubber through cross-linked acrylate, the adhesive force, flexibility and alkali resistance of the coating can be remarkably improved, and meanwhile the acoustic performance of the coating is also improved.

The invention discloses vinyl fluorine-containing polysiloxane and a preparation method thereof, and relates to the technical field of organic silicon materials. According to the invention, high-activity fluorine-containing potassium hydroxide silanolate is used as a catalyst to realize high-efficiency catalysis; d3F serves as a main monomer, D3Vi serves as a comonomer, deionized water is introduced for the first time to serve as a retarder, and implosion is effectively inhibited; vinyl dimethyl ethyoxyl silane is used as an end-capping reagent for the first time, end group vinylation is synchronously realized, and end group and side chain divinyl polysiloxane is prepared; through cooperation of ring-opening polymerization and condensation polymerization, the reaction process is mild and controllable, the product viscosity is controllable, the crosslinking activity is high, and the application range is remarkably widened.

The invention discloses an organic silicon modified polyurethane-acrylate composite emulsion and a preparation method of the organic silicon modified polyurethane-acrylate composite emulsion, and relates to the technical field of polymer composite emulsions. Comprising the following raw materials: 70 to 120 parts of oligomer polyol with an average molecular weight of 500 to 2000, 5 to 15 parts of a composite organosilicon component, 40 to 80 parts of diisocyanate, 0.05 to 0.2 part of a catalyst, 2 to 5 parts of a hydrophilic chain extender, 3 to 6 parts of a self-crosslinking hydrophilic chain extender, 4 to 12 parts of a neutralizer, 2 to 8 parts of a water-based chain extender and 50 to 150 parts of an acrylate monomer. 1-5 parts of an acrylate functional monomer, 1-3 parts of a cross-linking agent, 2-8 parts of an emulsifier and 0.5-3 parts of an initiator; the organic silicon modified polyurethane-acrylate composite emulsion prepared by the invention has a composite core-shell structure taking organic silicon modified polyurethane as a core and an acrylate polymer as a shell, so that the emulsion can form a more compact and more stable three-dimensional cross-linked network during film formation, and the weather resistance, water resistance, mechanical strength and surface glossiness of a coating film are remarkably improved.

Provided are: a surface treatment agent composition which uses a silicone-based compound and achieves both durable water repellency and peeling resistance; a water-repellent and oil-repellent textile product; and a method for producing the textile product. In one aspect, provided is a surface treatment agent composition comprising a silicone resin (A) and an organopolysiloxane (B) containing a carbinol group, wherein the silicone resin (A) contains at least one component selected from MQ, MDQ, MTQ, and MDTQ (where, M, D, T, and Q represent a (R")3SiO0.5 unit, a (R")2SiO unit, a R"SiO1.5 unit, and an SiO2 unit, respectively, and R" represents a C1-10 monovalent aliphatic hydrocarbon group or a C6-15 monovalent aromatic hydrocarbon group).

The invention relates to organic silicon modified bifunctional polyester resin and a weather-resistant powder coating composition prepared from the organic silicon modified bifunctional polyester resin. Specifically, the silicone-modified bifunctional polyester resin has a molecular backbone derived from a polyol component, a polyacid component, a capping component, and a silicone component, in which the silicone-modified bifunctional polyester resin has an acid value in the range of 20 to 40 mg KOH / g, a hydroxyl value in the range of 5 to 15 mg KOH / g, and a hydroxyl value in the range of 5 to 15 mg KOH / g. The organic silicon component is organic silicon resin with a structure as shown in a formula (I). The weather-resistant powder coating composition disclosed by the invention has excellent weather resistance, such as QUVB of more than 500 hours, and also has excellent leveling property and high glossiness. (RSiO3 / 2) a (R2SiO2 / 2) b (R3SiO1 / 2) c (SiO4 / 2) d (XO1 / 2) e (HO1 / 2) g (I)

The utility model provides a luminous organic silicon pad which comprises an organic silica gel layer, a base material layer and an anti-skid layer which are sequentially arranged from top to bottom, and the organic silica gel layer is formed by adding a luminous material into liquid silica gel. According to the utility model, the surface layer of the luminous organic silicon pad is made of the organic silica gel, so that the antifouling, hydrophobic, anti-skid and scratch-resistant properties of the luminous organic silicon pad can be improved, and the prepared organic silica gel layer can have the luminous property by adding the luminous material into the liquid silica gel, so that the luminous effect of the luminous organic silicon pad is improved. According to the invention, the discrimination of a user in a dark environment can be improved, and meanwhile, the use interestingness of the user can be improved.

To provide: a water-repellent composition from which it is possible to obtain a water-repellent fiber product excellent in water repellency, durable water repellency, water pressure resistance, durable water pressure resistance, abrasion resistance, durable abrasion resistance, and texture; a method for producing a water-repellent fiber product using the same; and a water-repellent fiber product using the same.SOLUTION: A water-repellent composition contains an amino-modified silicone, a silicone resin, and an alkyl polysiloxane, where: the blending amount of the silicone resin is 1,000-5,000 pts.mass relative to 100 pts.mass of the blending amount of the amino-modified silicone; and the blending amount of the silicone resin is 60-130 pts.mass relative to 100 pts.mass of the total blending amount of both the amino-modified silicone and the alkyl polysiloxane.SELECTED DRAWING: None

To provide a surface treatment agent composition comprising a silicone-based compound and capable of achieving both durable water repellency and resistance to peeling, and to provide a water / oil-repellent fiber product and a method for producing the same.SOLUTION: A surface treatment agent composition comprises: a silicone resin (A); and an organopolysiloxane (B) containing silanol groups, wherein the silicone resin (A) includes, as a component, at least one selected from MQ, MDQ, MTQ, and MDTQ {M, D, T, and Q respectively represent (R'')3SiO0.5 units, (R'')2SiO units, R''SiO1.5 units and SiO2 units, and R'' represents a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms or a monovalent aromatic hydrocarbon group having 6 to 15 carbon atoms}.SELECTED DRAWING: None

The invention belongs to the technical field of polymer materials and binders, and discloses a polyurethane modified acrylic ceramic tile binder and a preparation method thereof. The polyurethane modified acrylic ceramic tile adhesive comprises a liquid material and a powder material, the liquid material comprises a silicone acrylic emulsion and an organic silicon modified polyurethane emulsion; the powder material comprises Portland cement, quartz sand and white carbon black. The organic silicon modified polyurethane emulsion is obtained by carrying out copolymerization reaction and emulsification on an alkoxy silane modified hydroxyl-terminated polybutadiene prepolymer, polyether glycol, micromolecular dihydric alcohol and diisocyanate in the presence of an organic tin catalyst. The organic silicon modified polyurethane emulsion contains an organic silane oxygen group capable of being hydrolyzed and cross-linked, and can be subjected to a hydrolysis cross-linking reaction with an organic silicon coupling monomer in a silicone acrylic emulsion, so that the compatibility of polyurethane and an acrylic polymer is improved, and the modification effect is improved.

The application relates to the technical field of building materials, and discloses a permeable crystalline self-healing waterproof material for concrete self-waterproofing, which is prepared from the following raw materials in parts by weight: 20-30 parts of sodium-based bentonite, 20-50 parts of sodium methyl silicate, 4-6 parts of a penetrating agent, 8-12 parts of a sulphoaluminate cement, 15-18 parts of a silicone zirconium, and 2-5 parts of a complexing agent; the complexing agent is composed of 2-[3-(4-pentylphenyl)prop-2-enylamino]benzoic acid and sodium ethylenediaminetetraacetate. The above technical scheme solves the problem of low mechanical performance and waterproofness of concrete in the prior art.

This invention proposes a micro / nano-scale imprinting FPC solder resist layer forming device, relating to the field of circuit board solder resist layer forming technology. It includes a forming base with a limiting base mounted on it. An imprinting head is positioned directly above the limiting base and driven by a servo electric cylinder. The limiting base has a groove, within which a rigid base is installed. A vacuum adsorption assembly is mounted inside the forming base, and a forming placement cavity is located inside the rigid base. From top to bottom, a PI thin film layer, a silicone layer, and a carbon fiber heating film layer are sequentially arranged at the bottom of the forming placement cavity. Micro / nano patterns are etched on the imprinting head, and a PDMS elastic layer is located at the lower end of the imprinting head. This invention, through the cooperation of the PI thin film layer, silicone layer, carbon fiber heating film layer, and microporous array, can adsorb, flatten, and preheat the FPC substrate before imprinting, fundamentally compensating for the deformation of the flexible substrate and providing a stable and flat reference plane for high-precision imprinting.