382 results about "Silicone sealant" patented technology

The invention relates to a mildew-proof silicone sealant with high curing rate and high adhesive strength, and belongs to the technical field of adhesives. The anti-mildew coating is prepared from alpha, omega-dihydroxy polydimethylsiloxane, dimethyl silicone oil, fumed silica, phenoxy resin coated nano calcium carbonate, a modified hydroxypropyl-gamma-cyclodextrin loaded mildew preventive, dibutyltin dilaurate, methyltrimethoxysilane and a curing accelerator. According to the mildew-proof silicone sealant with the high curing rate and the high adhesive strength, the surface drying time is 9-13 minutes, the 24-hour curing depth is 6.3-7.2 mm, the adhesive strength is 3.0-3.6 MPa, the tensile strength is 5.8-6.4 MPa, the shear strength is 3.0-3.9 MPa, the elongation at break is 410-457%, and the mildew-proof grade is 0 grade in 30 days, 60 days, 180 days and 360 days.

The invention discloses a high-adhesion heat-conducting organic silicon sealant which is prepared from the following substances in parts by weight: 2 to 15 parts of vinyl silicone oil, 2 to 15 parts of vinyl resin, 0.2 to 10 parts of hydrogen-containing polysiloxane, 0.05 to 5 parts of adhesive, 0.05 to 1 part of catalyst, 0.01 to 1 part of inhibitor and 90 to 180 parts of modified heat-conducting filler. The heat-conducting organic silicon sealant prepared by the invention is an addition type single-component high-temperature rapid curing adhesive, is low in viscosity, convenient to use, green and environment-friendly, not only has a relatively high heat conductivity coefficient and can effectively transfer and disperse heat, but also has good adhesive property and electrical insulation property. The sealant is generally used in the fields of heat dissipation of automobile electronic components, heat dissipation positioning sealing of PCBs and electronic components, bonding of substrates (such as aluminum, copper and nickel-plated cover plates) and the like, and even can be used as PTIM on small and medium-sized chips.

The invention belongs to the technical field of adhesives, and particularly discloses a single-component silicone sealant for stainless steel bonding and a preparation method thereof, and the single-component silicone sealant comprises the following components by weight: 50-60 parts of alpha, omega-dihydroxy polydimethylsiloxane; 10 to 15 parts of a polydopamine coated silicon carbide nanowire; 5 to 15 parts of modified nano aluminum oxide gel; 5 to 10 parts of methyltris (methylethylketoxime) silane; 1 to 3 parts of dodecyl tris (methylethylketoxime) silane; 0.03 to 0.3 part of a coordination enhanced organic tin catalyst; and 8-14 parts of a plasticizer. According to the single-component silicone sealant for stainless steel bonding and the preparation method of the single-component silicone sealant, the modified nanometer aluminum oxide gel is selected, the bonding performance of stainless steel in a humid and hot environment is promoted and improved, the silicon carbide nanowire is coated with polydopamine, the bonding performance of the stainless steel is effectively improved, and the single-component silicone sealant can be widely applied to various indoor and outdoor scenes.

The invention relates to a silicone sealant, and belongs to the technical field of adhesives. The ceramic powder is modified by using the silane coupling agent kh-550 and the flame retardant TBC according to the characteristic that the amino group reacts with an isocyanate group, the ceramic powder is grafted with the kh-550 and then has the amino group on the surface, and the amino group can react with the isocyanate group in the flame retardant TBC to obtain the modified ceramic powder grafted with the flame retardant TBC; after the modified ceramic powder is grafted with the flame retardant, the problem of phase separation possibly caused by direct blending can be avoided, the overall components are more uniform, the synergistic flame retardant effect of an organic layer and an inorganic layer is better exerted, in addition, the modified ceramic powder can react with 107 silicone rubber to form chemical bonds, the bridging effect of a molecular layer is achieved, and the flame retardant effect is improved. The bonding force between an organic interface and an inorganic interface is enhanced, the overall crosslinking density of the sealant is improved, and the finally prepared silicone sealant has good fireproof and flame-retardant properties and mechanical properties.

The invention provides a dealcoholized silicone sealant with high tear strength and fatigue resistance and a preparation method thereof. The silicone sealant comprises the following components in parts by weight: 100 parts of alpha, omega-dihydroxy polysiloxane, 20-40 parts of polyborosiloxane, 5-15 parts of simethicone, 70-140 parts of nano active calcium carbonate, 3-7 parts of a cross-linking agent, 1-3 parts of a compound coupling agent, 2-5 parts of a titanate vulcanizing agent A and 2-4 parts of a titanate vulcanizing agent B. According to the method, polyborosiloxane and alpha, omega-dihydroxy polysiloxane are adopted as basic polymers, a titanate vulcanizing agent is compounded, and a filler, a cross-linking agent, a coupling agent and the like are matched to obtain the dealcoholized silicone sealant which has relatively high tear strength and excellent fatigue resistance; and obvious negative effects on the surface drying time, the tensile strength, the elongation at break and other mechanical properties and the adhesive property of the silicone sealant are avoided. The invention also overcomes the defects of poor mechanical fatigue resistance and tear resistance of the existing silicone sealant.

The transparent deacidification type long-acting mildew-proof silicone sealant is prepared from the following components in parts by mass: 80 to 110 parts of basic polymer, 15 to 25 parts of plasticizer, 6 to 9 parts of cross-linking agent, 10 to 15 parts of filler, 0.05 to 0.2 part of mildew preventive, 1 to 2 parts of tackifier and 0.05 to 0.2 part of catalyst, the cross-linking agent is any one or a combination of more of methyl triacetoxysilane, ethyl triacetoxysilane, propyl triacetoxysilane, methyl tris (2-ethyl acetoxygroup) silane or methyl tris (benzoyloxy) silane; and the cross-linking agent is any one or a combination of more of methyl triacetoxysilane, ethyl triacetoxysilane, propyl triacetoxysilane, methyl tris (benzoyloxy) silane. Through the design of the sealant formula, the sealant with excellent comprehensive performance can be obtained, the curing speed is high, the bonding performance is good, long-acting mildew prevention is achieved, and the use scene of the sealant is widened.

The invention relates to the technical field of sealants, in particular to a silicone fireproof sealant for buildings. Quaternary ammonium salt modified silicone oil is added in the preparation process of a silicone sealant base adhesive, and a quaternary ammonium salt group is introduced through a ring-opening reaction of epoxy-terminated polyether and trimethylamine hydrochloride, so that a microbial cell membrane structure is destroyed, and broad-spectrum antibiosis is realized; chemical bonding of quaternary ammonium salt groups and a silicone oil main chain avoids the problem of migration failure of a traditional mildew preventive; secondly, the modified aluminum hydroxide can improve the flame retardant property of the sealant, after the aluminum hydroxide is modified by vinyl trimethoxy silane, the surface hydrophobicity of the sealant can be enhanced, the dispersity of the sealant in base glue is improved, the heat absorption efficiency is high during thermal decomposition, and the combustion speed can be delayed, so that the fireproof performance is improved; the modified aluminum hydroxide is combined with the melamine and the modified hollow glass beads for synergism, so that the prepared silicone fireproof sealant has excellent fireproof performance.

The utility model discloses feeding equipment for silicone adhesive production and preparation. The feeding equipment comprises a storage tank and a feeding chamber, a feeding mechanism is arranged in front of the storage tank; a conveying mechanism and a bag discharging mechanism are arranged in the storage tank; a discharge port of the storage tank is connected with the feeding chamber through the conveying unit; and the feeding chamber is connected with the reaction kettle through a powder flow pump. According to the bagged raw material feeding device, the storage tank and the feeding chamber are arranged, bagged raw materials are conveyed into the storage tank to be discharged through the feeding mechanism, bagged raw material feeding operation is carried out inside, raised dust is limited in the storage tank, and pollution to the outside is reduced; the conveying unit is arranged to be connected with the feeding chamber to convey raw materials into the feeding chamber, the powder flow pump is used for controlling the amount of the raw materials actually fed into the reaction kettle, automatic quantitative feeding is achieved, and compared with original manual weighing feeding, the automatic quantitative feeding device is more accurate and stable; the automatic quantitative feeding device has the advantages that dust is not prone to rising during feeding of bagged materials, and automatic quantitative feeding is relatively accurate.

The invention provides a high-performance organosilicon sealant for electronic packaging, and relates to the technical field of organosilicon sealants. The organic silicon sealant is prepared from the following raw materials: methyl vinyl silicone oil, vinyl dimethyl silane, a platinum catalyst, fumed silica, a B4Cw (at) ZrO2 compound, ethynyl cyclohexanol, a silane coupling agent, a titanate coupling agent, a cerium-zinc composite antioxidant and an auxiliary antioxidant. The B4Cw (at) ZrO2 compound is prepared from boron carbide whiskers and nano zirconium oxide sol; the cerium-zinc composite antioxidant is prepared from cerium nitrate, zinc nitrate and ammonia water. The preparation method of the high-performance organic silicon sealant for electronic packaging comprises the following steps: pretreating boron carbide whiskers, synthesizing a B4Cw-coated ZrO2 compound, preparing a cerium-zinc composite antioxidant, preparing a basic rubber material, and preparing the organic silicon sealant. The prepared organic silicon sealant is high in mechanical strength, excellent in elastic property and high in durability.

The invention discloses a high-elasticity anti-aging foamed silica gel sealing element, and belongs to the technical field of sealing materials. The silicone rubber is prepared from raw materials including methyl vinyl silicone rubber, fumed silica, hydroxyl-terminated polydimethylsiloxane and the like according to specific parts by weight through the processes of mixing, foaming vulcanization and the like. The apparent density of the sealing element is 0.3-0.6 g / cm < 3 >, the Shore A hardness is 25-45 degrees, the tensile strength is larger than or equal to 2.5 MPa, the elongation at break is larger than or equal to 350%, the performance retention rate is high after the sealing element is aged for 1000 h at the temperature of 150 DEG C, and the sealing element has excellent elasticity and aging resistance. The surface of the anti-slip sealing gasket can be provided with anti-slip textures to meet sealing requirements in the fields of automobiles, electronics and the like, and is long in service life and high in practicability.

The invention relates to the technical field of silicone rubber sealing materials, and discloses a fast-curing matte silicone sealant and a preparation method thereof.The silicone sealant is prepared from, by mass, 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 5-15 parts of a reactive plasticizer, 70-120 parts of calcium carbonate, 5-10 parts of a cross-linking agent, 1-5 parts of a coupling agent, 0.5 part of a catalyst and 0.5-1 part of a vulcanization accelerator; 0.2 to 1.5 parts of a reaction type matte agent solution; the reaction type matte agent solution is a mixture of hydroxylated eleostearic acid triglyceride and a cross-linking agent. The silicone sealant prepared by the invention has the advantages of smooth surface, excellent matte effect, weather aging resistance, thixotropy, rapid curing and the like, can be used as a sealing material for high-end buildings, and has a wide application prospect.

The invention belongs to the technical field of silicone sealants, and particularly discloses a transparent silicone sealant and a preparation method thereof. The transparent silicone sealant is prepared from the following raw materials in parts by weight: 100 parts of hydroxyl-terminated polydimethylsiloxane; 8-12 parts of a diluent; 6-10 parts of a filler; 6-10 parts of a cross-linking agent; 1-3 parts of a self-made coupling agent; 0.1 to 0.3 part of a catalyst; wherein the self-made coupling agent is prepared by compounding gamma-aminopropyl trimethoxy silane and an amino silane oligomer, and the self-made coupling agent is prepared by compounding the gamma-aminopropyl trimethoxy silane and the amino silane oligomer; the mass ratio of the gamma-aminopropyl trimethoxy silane to the amino silane oligomer is (1: 1)-(1: 4). According to the invention, the modulus, heat resistance and wet adhesive force of a finally cured coating can be obviously improved, and the coating has very strong storage stability, is not easy to generate performance change in a storage process, and is beneficial to actual production control and long-term storage.

A low-modulus, high-resilience modified alcohol-based silicone sealant, its preparation method, and its application are disclosed, relating to the field of sealant materials technology. The silicone sealant comprises the following components in parts by weight: 100 parts of α,ω-alkoxysilane ethylidene-terminated polydimethylsiloxane, 30-80 parts of plasticizer, 80-150 parts of reinforcing filler, 0.5-20 parts of silane crosslinking agent, 0.5-10 parts of silane tackifier, and 0.01-1 part of Lewis acid catalyst; wherein the plasticizer is α-alkoxysilane ethylidene-terminated polydimethylsiloxane. The low-modulus, high-resilience silicone sealant of this invention exhibits fast surface drying speed, low modulus, high elastic recovery rate, good adhesion, and weather resistance.

The application discloses a kind of flame-retardant mildew-proof prepolymer, transparent flame-retardant mildew-proof silicone sealant and preparation method thereof.The flame-retardant mildew-proof prepolymer is prepared from raw materials including the following components by weight: mildew-proof agent 0.5-10 parts, flame retardant 20-50 parts, tackifier composition 0.2-2 parts;The tackifier composition is composed of alkyl acetoacetate, trimethylsilyl ethyl acetate, 3-isocyanate propyl trimethoxysilane and polyether silicone oil.The transparent flame-retardant mildew-proof silicone sealant is prepared from raw materials including the following components: alkyl alkoxy-terminated polydimethylsiloxane, white carbon black, the flame-retardant mildew-proof prepolymer, crosslinking agent, catalyst, coupling agent.The transparent flame-retardant mildew-proof silicone sealant prepared by the application not only has very high transparency, but also has excellent flame-retardant effect, long-lasting mildew-resistant and antibacterial properties, and good bonding stability and mechanical strength.

This invention provides an organosilicon sealant composition for anti-fog automotive lights and its preparation method. The organosilicon sealant composition for anti-fog automotive lights comprises the following components: α,ω-dihydroxy polydimethylsiloxane, a first crosslinking agent, a second crosslinking agent, a catalyst, a filler, a coupling agent, and a plasticizer. The first crosslinking agent has 3 alkoxy functional groups, the second crosslinking agent has ≥4 alkoxy functional groups, and the D3-D10 content of α,ω-dihydroxy polydimethylsiloxane is 0.01-0.05 wt%. This invention utilizes a polyalkyloxysilane derivative prepared from a tertiary amine polyol and an isocyanate-based silane coupling agent as a non-volatile second crosslinking agent, which has high activity, does not reduce the reaction rate, and can reduce the amount of the volatile first crosslinking agent. Furthermore, using α,ω-dihydroxy polydimethylsiloxane with a low D3-D10 content as the base adhesive can further reduce volatile components, making the automotive lights less prone to fogging.

The utility model discloses a silicone sealant dewatering device which comprises a dewatering outer barrel, a feeding pipe and a vacuum connecting pipe are arranged on the dewatering outer barrel, a driving motor is fixedly installed on the dewatering outer barrel, the output end of the driving motor is connected with a rotating shaft, one end of the rotating shaft extends into the dewatering outer barrel, and the other end of the rotating shaft is connected with a vacuum pump. According to the silicone sealant dehydration device, a silicone sealant is placed in the dehydration outer barrel, the driving motor operates to drive the multiple main stirring blades to rotate, the heating and dehydration time of the silicone sealant is effectively shortened through stirring, and the dehydration efficiency of the silicone sealant is improved. The arranged driving assembly can drive the rotating seat to rotate so as to drive the multiple auxiliary stirring blades to rotate, the silicone sealant in the dewatering outer barrel can be effectively stirred through multiple rotating stirring, the stirring effect is good, multiple stirring can be conducted only through one motor, and the cost can be relatively reduced.

The utility model provides an ultralow-energy-consumption building external window airtight structure which comprises a structure base layer, an external window and an energy-saving auxiliary frame. The energy-saving auxiliary frame is pre-buried at the edge, connected with the outer window, of the structure base layer, and the energy-saving auxiliary frame transversely crosses the indoor side and the outdoor side of the outer window; the outer window is detachably connected to the energy-saving auxiliary frame; the waterproof vapor-proof film is laid on the joint face of the indoor side of the energy-saving auxiliary frame and the structural base layer. The waterproof vapor-permeable film is laid on the joint surface of the outdoor side of the energy-saving auxiliary frame and the structural base layer; the closing-up positions of the waterproof vapor-proof film and the waterproof vapor-permeable film are coated with silicone sealants. The air tightness of the outer window is guaranteed, indoor and outdoor cold and hot air exchange and cold and hot energy loss are reduced, and the energy-saving and emission-reducing effects of a building are achieved; the building sound insulation performance and the air quality are improved, the energy use efficiency is improved, meanwhile, water vapor is discharged outdoors in time, the energy-saving auxiliary frame of the outer window is protected against corrosion, the service life of the outer window and the building is prolonged, and an effective guarantee is provided for long-term use of the building.

The invention is applicable to the technical field of organic silicon sealant production equipment, and provides an organic silicon sealant production reaction kettle which comprises a shell and a reaction kettle liner, and a top cover is mounted on the reaction kettle liner; the reaction kettle further comprises a working module, the working module comprises a main shaft arranged in the inner container of the reaction kettle, a driving unit is further arranged on the top cover, a plurality of stirring rods are annularly installed on the main shaft, an auxiliary scraping plate is connected between the stirring rods located in the same vertical direction, and the upper end of the main shaft is further sleeved with a sliding sleeve. A lifting unit is further arranged on the top cover, an adjusting unit is installed on the sliding sleeve, and the adjusting unit is used for driving the auxiliary scrapers to linearly move in the radial direction of the main shaft through the sliding sleeve. The device is simple in structure, integration of multiple working modes can be achieved, multiple functions of stirring, bubble removing and cleaning are achieved, the production efficiency of the organic silicon sealant is effectively improved, the working efficiency is high, and the using effect is good.

This utility model belongs to the technical field of chemical production equipment and discloses a waste gas treatment device for silicone sealant production. It includes suction hoods installed at various points on the production line, which are sequentially connected via pipes to a dust collector, an incinerator, a wet electrostatic precipitator, an alkaline scrubbing tower, an induced draft fan, and a chimney. The outlet of the dust collector is connected to the inlet of the incinerator, the outlet of the incinerator is connected to the inlet of the wet electrostatic precipitator, the outlet of the wet electrostatic precipitator is connected to the inlet of the alkaline scrubbing tower, the outlet of the alkaline scrubbing tower is connected to the inlet of the induced draft fan, and the outlet of the induced draft fan is connected to the inlet of the chimney. This utility model can treat the waste gas generated during silicone sealant production, ensuring environmental and personal safety.

Provided is a hot melt adhesive for insulating glass spacer, prepared from raw materials comprising the following components: 1-10 parts by weight of butyl rubber, 25-50 parts by weight of a polyisobutylene mixture; 5-15 parts by weight of a tackifying resin; 1-15 parts by weight of a tackifier; 5-15 parts by weight of a polymer; 0.1-1 part by weight of a lubricant; 0.1-1 part by weight of an antioxidant; 15-50 parts by weight of a filler; 1-10 parts by weight of a water absorbent; and 5-25 parts by weight of carbon black. Compared with the prior art, in the hot melt adhesive for insulating glass spacer provided in the present disclosure, components with specific contents are used, such that relatively good overall interaction is achieved, the thixotropy of the product is good, and the adhesion to both silicone sealant and glass is excellent.

The application provides a silicone sealant not prone to discoloration and a preparation method thereof, and relates to the technical field of silicone sealants. The silicone sealant comprises the following components in parts by weight: 100 parts of hydroxyl-terminated polydimethylsiloxane, 70-130 parts of fillers, 0-20 parts of dimethyl silicone oil, 5-12 parts of a crosslinking agent, 1-3 parts of a coupling agent oligomer, 0.5-3 parts of an epoxy coupling agent and 0.01-0.5 parts of a catalyst. The application adopts a customized amino coupling agent oligomer with a specific structure, and optimizes the formula to achieve optimal effects by matching 107 glue, fillers and the like at a proper ratio. The application can improve the poor high-temperature tensile bonding property and the discoloration under high temperature of the existing silicone sealant, realizes good high-temperature bonding property and is not prone to discoloration, and in particular, the discoloration phenomenon under high-temperature application scenarios is obviously improved, thereby meeting the high requirements in special building, automobile, electronic and electrical applications and the like.

The present invention discloses a safety control system for a polymer silicone sealant, which includes a process parameter acquisition module, a database, a 5G transmission module, a signal receiving module, and a control terminal. It also includes a data extraction module, a data analysis module, a signal flow acquisition module, a signal analysis module, and an error calibration module. It can automatically analyze and detect the process parameter data signal, calculate the deviation of the data signal and the bit value error of the data packet, and then calculate the data signal error value. The combination of the analysis of these three values can not only distinguish the level of the data signal error value, but also correct the data signal, analyze the cause of the data error, and make corresponding treatments according to the error cause, so as to realize the adjustment of the process parameter data signal itself and improve the use effect of the safety control system for the polymer silicone sealant.

The present invention provides a dealcoholized silicone sealant with rapid initial curing and a preparation method thereof, comprising the following steps: dispersing a metal-organic framework (MIL-101), a silane coupling agent, and calcium carbonate in an organic solvent and reacting for 5 to 7 hours to obtain MIL-101@CaCO3; and mixing and dispersing α,ω-dihydroxy polydimethylsiloxane, alkoxy-terminated polydimethylsiloxane, MIL-101@CaCO3, a crosslinking agent, a coupling agent, and a catalyst to obtain the dealcoholized silicone sealant. The present invention significantly increases the migration rate of water vapor within the filler by modifying CaCO3 with the metal-organic framework (MIL-101). The diffusion coefficient of water vapor within the filler is 0.112 cm at 25°C and 30% relative humidity. 2 / s, and ensure the mechanical strength; on this basis, it is combined with alkoxy-terminated polydimethylsiloxane to further improve the curing rate, and the curing depth can reach more than 1mm in 6 hours.

The application discloses a high-temperature-resistant silicone sealant and a preparation method thereof. The sealant comprises A component and B component. The A component is prepared from 100 parts of alpha, omega-dihydroxypolydimethylsiloxane, 5-40 parts of a filler, 5-10 parts of a hydrogen adsorbent, 1-3 parts of carbon fiber, 5-10 parts of vinyl fluorosilicone oil and 0.5-1 part of a catalyst. The B component is prepared from 100 parts of hydrogen-containing polysilazane resin, 100-500 parts of a diluent, 10-50 parts of a water-removing agent and 20-100 parts of a filler. The sealant contains SiH-NH-SiH structure, can react with alpha, omega-dihydroxypolydimethylsiloxane to generate elastomers, can eliminate excessive water and catalyst in the system through hydrolysis, and can make the generated elastomers have excellent high-temperature resistance and humidity resistance. Meanwhile, the structure can react with hydroxyl groups on the surface of materials, so that the sealant has excellent bonding properties on glass, ceramic and metal materials.

The invention relates to a curtain wall silicone adhesive shear performance non-sidesway testing device and method, and the device comprises a shear test piece which comprises two stone plates and a curtain wall silicone adhesive connected with the two stone plates; the four transverse steel plates are tightly attached to the upper sides and the lower sides of the two stone plates respectively; the square steel hoop is fixed on the outer side of the transverse steel plate; the first sleeve group comprises a first screw, a first sleeve and a second screw, and the first screw and the second screw are connected through the first sleeve; the first vertical guide rail and the second vertical guide rail each comprise a first vertical square steel plate and a second vertical square steel plate, and the lower portion of the first vertical square steel plate is slidably arranged in the second vertical square steel plate in a sleeved mode; the second sleeve group comprises a second screw, a second sleeve and a third screw, and the second screw and the third screw are connected through the second sleeve; compared with the prior art, the device has the advantages of ensuring the test precision and reliability, being convenient to operate, protecting the test piece, reducing the manufacturing cost and the like.

The invention discloses a high-whiteness, high-flowability and low-warpage polyester resin composition and a preparation method thereof, and belongs to the field of polymer composite materials. The composition comprises the following raw materials in parts by weight: 40-60 parts of PCT resin, 3-12 parts of second component polyester resin and 0.5-2 parts of hyperbranched dendritic polyester. Compared with a conventional PCT polyester composition, the composition disclosed by the invention has the advantages that the whiteness, the reflectivity, the mechanical property and the heat resistance are well maintained, and the flowing property is well improved, so that the composition can better meet the molding requirement of thousands of cavities in one mold during injection molding. After high-temperature baking, the buckling deformation phenomenon is obviously improved, and the deformation amount of the PCT reflection support under the high-temperature condition can be smaller, so that the bonding performance of the PCT reflection support and epoxy / silica gel sealant is better, the reliability of LED lamp beads is greatly improved, and the service life is prolonged.

The utility model relates to a special-shaped broken line glass curtain wall installation structure which comprises a plurality of pieces of glass, a stand column and cross beams, each piece of glass is fixed with the stand column through an aluminum alloy accessory in the vertical direction, each cross beam is fixed with the glass through an aluminum alloy auxiliary frame and a pressing block, the cross beams are fixed with the stand column through stainless steel plug pins, and the stand column is obliquely arranged. The combined adapter is connected with the steel tube, and the steel tube is welded with the embedded part; and the combined adapter is connected with the steel tube through the stainless steel pin shaft, so that the mounting angle of the combined adapter is convenient to adjust, the mounting angle of the upright post is adjusted, and the glass curtain wall in a continuous sawtooth fold line shape is formed. The aluminum alloy accessories are connected with the stand columns through heat insulation strips. A cavity in the corner of the stand column is filled with polyurethane foam for heat insulation and sealed by double silicone sealants. The glass curtain wall in a continuous sawtooth fold line shape is installed, the problem that the cold bridge effect of the fold angle portion is obvious is solved, and the overall energy-saving performance of the curtain wall is guaranteed.

The utility model discloses a floor type mounting structure of glass curtain wall relates to glass curtain wall technical field contains stainless steel groove, glass panel, switching steel sheet and concrete base, stainless steel groove passes through indoor terrace lengthways, and the top of stainless steel groove is flush with indoor terrace, switching steel sheet has two, and is located stainless steel groove's both sides respectively, and stainless steel groove is fixed and installed on concrete base through two switching steel sheets, stainless steel groove is U -shaped, and the lower end of glass panel is embedded in stainless steel groove, and the both sides and bottom of glass panel are all provided with flexible pad in stainless steel groove inner wall contact position, and the whole of the whole structure and stability are improved to the whole safety of the guarantee under the strong wind or earthquake load, and it is not easy to displace, and the whole safety is guaranteed, and the sealing of the connecting position is carried out to the silicone sealant, effectively avoid the generation of gap, improve the leakproofness, prevent rainwater seepage.

The present application belongs to the technical field of material testing and visual detection, and particularly relates to a visual observation system for high-temperature and high-pressure testing of organic silicon sealant, which comprises a high-pressure sealing cavity, a transparent observation window, a high-frame-rate industrial camera, a multi-spectrum coaxial light source system, an image acquisition and control module, and an image processing and analysis module; multi-scale space-time features are extracted through construction of an image pyramid and a three-dimensional convolutional neural network, a constitutive model of the organic silicon sealant is embedded into a light flow calculation framework to reconstruct a deformation field and a stress field in accordance with physical laws, a space-time graph convolutional network is used to identify rupture, flow and debonding failure modes, a physical information neural network is used to predict failure time and an extension trajectory, and finally, a safety working condition window is output by fusing temperature and pressure data. The present application realizes intelligent, quantitative and accurate observation of the dynamic failure process of the organic silicon sealant under high-temperature and high-pressure working conditions, and provides reliable data support for sealant selection and injection molding process optimization.

The present disclosure provides a one-component room temperature vulcanizable (RTV) silicone sealant composition comprising an alkoxy-terminated organopolysiloxane polymer (a) and a tin-based catalyst (d), and a process for preparing said one-component room temperature vulcanizable (RTV) silicone sealant composition comprising an alkoxy-terminated organopolysiloxane polymer (a) and a tin-based catalyst (d). The one-component room temperature vulcanizable (RTV) silicone sealant composition relies on a novel stabilizer combination (e) of (e)(i) one or more silazanes and one or more silanes (e)(ii) having at least one acetamide group, with the aim of providing a storage-stable one-component room temperature vulcanizable (RTV) silicone sealant composition.