51 results about "Cure time" patented technology

The invention provides a toughened curing-controllable prepreg and a preparation method thereof, and belongs to the technical field of high-performance composite materials. Comprising the following components in parts by mass: 100 parts of epoxy resin, 100 parts of a thermoplastic resin toughening agent, 100 parts of an inorganic nanoparticle toughening agent, 100 parts of a latent curing agent, 100 parts of an organic urea accelerant, 100 parts of an imidazole accelerant and 100 parts of a reactive diluent, correspondingly, 1-5 parts by mass of a thermoplastic resin flexibilizer, 0-3 parts by mass of an inorganic nanoparticle flexibilizer, 4-8 parts by mass of a latent curing agent, 1-4 parts by mass of an organic urea accelerator, 0.1-0.5 part by mass of an imidazole accelerator and 5-20 parts by mass of an active diluent are added. The prepreg provided by the invention not only is endowed with fast curing and controllable curing time, but also is endowed with relatively long room-temperature storage period, high toughness and good impact resistance, and is especially suitable for the fields of low-altitude aircrafts, automobiles, ships and the like.

The invention relates to the technical field of composite material preparation, and discloses a vacuum infusion epoxy resin system which comprises the following components in parts by weight: 50-80 parts of epoxy resin, 10-30 parts of a curing agent, 1-5 parts of an accelerant, 5-15 parts of a flexibilizer, 10-20 parts of filler, 1-3 parts of a coupling agent, 5-10 parts of a diluent, 0.1-1 part of a defoaming agent, 0.5-2 parts of an antioxidant and 0.5-2 parts of a light stabilizer. Low-temperature rapid curing is achieved through the synergistic effect of the modified aromatic amine curing agent and the accelerant, the carboxyl-terminated nitrile rubber toughening agent and the filler form a synergistic toughening system to improve the mechanical property, and the hydrogenated bisphenol A epoxy resin is matched with the light stabilizer and the antioxidant to enhance the weather resistance and the high temperature resistance. The system can be used for preparing composite materials in the fields of wind power generation blades, ships, aerospace and the like, fiber reinforced materials are infiltrated by adopting a vacuum infusion forming process and then are cured and formed, and the problems that an existing resin system is long in curing time and insufficient in mechanical property and weather resistance are solved.

The invention discloses a formaldehyde-free vegetable glue, the formaldehyde-free vegetable glue is a two-component polystyrene foam, the two-component polystyrene foam comprises a glue body and a curing component, and the foaming rate of the formaldehyde-free vegetable glue is 40-80%. The formaldehyde-free vegetable gum prepared by the invention can prolong the operable time, has long development time before hot pressing, and has short curing time after hot pressing. The weight ratio of water to isocyanate in the raw materials is 0.1996: 25, the gel reaction and foaming reaction of the polystyrene foam can be balanced, foaming is uniform, and meanwhile the strength of the board is not affected. In addition, foam holes formed after foaming of the polystyrene foam are uniform small pores, so that the strength of an adhesive layer is improved, and the bonding strength is improved. In the bonding of the sandwich structure of the plate, the bonding strength is high, and the colloid is not easy to damage during stripping.

The invention provides a sheet molding compound resin composite material and a preparation method thereof. The resin composite material comprises the following components in parts by weight: 60-70 parts of unsaturated resin; 30-40 parts by weight of a low shrinkage agent; 0.5-1.5 parts by weight of a curing agent; 0.3-1 part by weight of a polymerization inhibitor; 0.2-1 part by weight of a wetting dispersant; 2-6 parts by weight of an internal release agent; 140-180 parts by weight of an inorganic composite filler; 15-35 parts by weight of zeolite powder; 120 to 150 parts by weight of glass fiber; 2-6 parts by weight of a thickening agent; and 1-2 parts by weight of a deodorant. Through the synergistic effect of the zeolite powder and the deodorant, the peculiar smell of the SMC resin composite material is further reduced, and meanwhile the basic mechanical property of the composite material is kept. According to the preparation method, by regulating and controlling the curing temperature and the curing time, the curing rate of the sheet molding compound resin composite material is increased, and the generation of residual peculiar smell substances which are not completely reacted is reduced.

The invention relates to the technical field of fireproof coatings, in particular to a fireproof coating capable of being rapidly cured in a high-humidity environment and a preparation method of the fireproof coating. Comprising the following raw materials in percentage by mass: 5-20% of film-forming resin, 4-15% of a dispersing solvent, 5-25% of a plasticizer, 0.05-2% of a coupling agent, 30-70% of an expansion system, 5-20% of an inorganic filler and 0.4-2% of reinforced fibers. The fireproof coating provided by the invention is short in curing time, can still be cured especially in a high-humidity environment, can be applied to rainy regions in rainy seasons, is high in curing speed, and avoids influence on construction progress due to rainy seasons; and meanwhile, the cured coating has excellent water resistance, does not blister or fall off within 7 days, does not need to be coated with finish paint in the use process, reduces the construction procedures and saves the cost.

The invention provides a method for estimating thermal expansion molding process parameters of a foam sandwich composite material, the foam sandwich composite material and a preparation method of the foam sandwich composite material. The estimation method comprises the following steps: testing an expansion pressure-time relation curve of the expandable foam rubber under the conditions of different temperatures and different expansion rates, and when the maximum value of the expansion pressure exceeds 100 kPa, recording a corresponding expansion rate range and a temperature range; testing a viscosity-curing time relation curve of resin in the prepreg at different temperatures, and recording a corresponding temperature range when the curing time does not exceed 10 minutes and the viscosity is not lower than 100 Pa.s; and taking the overlapped part of the recorded temperature range of the expandable foam rubber and the recorded temperature range of the resin as an estimated temperature range of thermal expansion mold pressing, and taking the recorded expansion rate range as an estimated expansion rate range of a thermal expansion mold pressing process. According to the estimation method, the production process stability of the sandwich composite material is improved.

The thermosetting resin composition contains an epoxy resin containing an epoxy compound represented by formula (1), a curing agent, and an inorganic filler. The glass transition temperature of a thermosetting resin composition in which m is 2 and n is 2 in formula (1), measured at a heating rate of 5°C / min using thermomechanical analysis (TMA), is 190°C or more, and the die shear strength of the thermosetting resin composition to copper at 230°C, measured by the following <Procedure>, is 3.0 MPa or more. <Procedure> The thermosetting resin composition is molded using a low-pressure transfer molding machine at a mold temperature of 175° C, an injection pressure of 10 MPa, and a curing time of 120 seconds, and four 10 mm2 test pieces per level are molded on a copper lead frame. Subsequently, the die shear strength between the test piece and the copper lead frame is measured at 230°C using an automatic die shear measuring device. The die shear strength of the four test pieces is adopted.

The invention discloses an efficient production process for environment-friendly resin crafts. The efficient production process for the environment-friendly resin crafts comprises the following steps: S1, filler treatment; s2, preparing a resin system; s3, mold treatment is conducted, specifically, a mold is sprayed with a semi-permanent mold release agent, a mold release agent film layer with the preset thickness is obtained, and the temperature of the mold is preset to 40 DEG C; s4, automatic pouring is conducted, specifically, the pouring curing temperature, pressure and curing time are set as follows: in the gel stage, curing is conducted for 30-60 min at the temperature of 35-40 DEG C and the pressure of 0.3 MPa, so that exhausting is completed, and bubbles of a resin system are reduced; in the main curing stage, curing is performed at 65-70 DEG C and normal pressure for 1-2 hours, so that the crosslinking reaction is accelerated; in the post-curing stage, curing is conducted for 30 min at the temperature of 50 DEG C and the normal pressure, so that internal stress S5, automatic demolding; and S6, finish machining is conducted on the crude product of the environment-friendly resin artware. According to the efficient production process of the environment-friendly resin artware, the curing efficiency of a resin system is enhanced by adjusting temperature control in the pouring process.

Curable resin compositions having extended open times at ambient temperatures and short cure times at high temperatures are prepared using a curable resin curable by one or more liquid organic peroxides or blends thereof and an accelerator / activator accelerator comprising a metal salt and a thiol-functionalized organic compound.

The invention discloses a high-speed bonding hot melt adhesive containing OPE wax as well as a preparation method and application of the high-speed bonding hot melt adhesive. The hot melt adhesive comprises the following components in percentage by weight: 10-25% of a main polymer; 40%-60% of tackifying resin; 10%-25% of white mineral oil; 5%-10% of a processing aid; 0.4% to 0.8% of an antioxidant 1010:; 0.1% to 0.3% of an antioxidant 412S; and 5%-25% of OPE wax. The preparation method of the hot melt adhesive comprises the following steps: mixing all the components, vacuumizing, heating and stirring until the materials are completely molten, stopping stirring, and vacuumizing and defoaming. The hot melt adhesive has the advantages of high bonding strength, good antioxidant effect, low viscosity, short curing time and the like, is suitable for non-polar base materials, can meet the production requirements of high-speed production lines, and is simple in preparation method, low in production cost and suitable for large-scale industrial production and application.

The present application relates to the technical field of composite material forming, and particularly relates to a protection treatment method before filling of a core mold of a metal framework with a complex structure. The treatment method comprises the following steps: S100, preparation; S200, preparation of silicone rubber; S300, coating of the filling silicone rubber; S400, filling of the core mold, machining and composite material forming; and S500, completion of product preparation, removal of the core mold and finished product silicone rubber. The treatment method has the advantages of simplifying the operation process, reducing the operation difficulty, improving the labor efficiency, shortening the curing time, making the coating uniform and complete, shortening the protection time of the whole framework, being suitable for the wide temperature range post-curing process requirement, effectively buffering and eliminating the damage of the removal tool to the metal framework, avoiding the resin from entering the hollow hole and the part with a rib plate included angle during the resin pouring process, reducing the difficulty of the core mold removal and the framework cleaning in the later period, and being easier to clean and remove without residue.

The invention discloses an epoxy resin four-stage curing process optimization method based on multi-temperature gradient and epoxy resin. The optimization method comprises the following steps: S1, determining a four-stage curing temperature platform and heating buffer time; and S2, optimizing the curing temperature X1 and the curing time X2 of the four stages based on a response surface method, regulating and controlling the curing rate under each temperature platform to be always in a set dynamic equilibrium interval, performing quadratic polynomial regression modeling according to the curing temperature X1, the curing time X2, the maximum curing rate Y1 and the minimum curing rate Y2, and determining optimal four-stage curing process parameters. When the epoxy resin is prepared by using the optimization method, the problems of residual stress concentration, microcracks, warping and the like caused by large temperature difference and non-uniform curing rate in a traditional two-stage curing process can be solved, and staged release of residual stress and effective improvement of curing uniformity can be realized; therefore, the balance between epoxy resin curing uniformity and production efficiency is realized.

The present invention relates to a method for preparing thick composite laminated timber, comprising the following steps: S100, preparing a blank; S200, forming a finished product, wherein forming the finished product specifically comprises: S210, treating a bonding surface of the blank, and S220, preparing an adhesive, the adhesive comprising 100 parts by weight of an epoxy resin, 25-70 parts by weight of a curing agent, 10-30 parts by weight of a toughening agent, and 0.5-5 parts by weight of a coupling agent, and uniformly mixing said components in proportion; S230, uniformly coating the bonding surface with the adhesive, wherein the adhesive is coated in an amount of 200-1000 g / m2; S240, curing the adhesive; and S300, performing molding. The method for preparing thick composite laminated timber has the advantages that a plurality of prepreg layers are molded to form thin blanks, and then the plurality of blanks are formed into the thick composite laminated timber by means of adhesive curing; thus, the product curing time is shortened, the production efficiency is improved, the product appearance quality and mechanical strength are not affected, and the occurrence of core burning is avoided.

The invention relates to a process for improving adhesive force of a butyl rubber plug crown surface coating, and belongs to the field of rubber materials. After the vulcanized molded rubber plug is cooled, impurities attached to the surface of the crown of the molded rubber plug due to the electrostatic action are removed through an electrostatic hair impurity removing machine; vulcanized residual silicone oil on the surface of the crown part of the molding rubber plug is removed through a liquid nitrogen oil removal device; the mold forming rubber plug is preheated, and the heating temperature ranges from 140 DEG C to 160 DEG C; a polysiloxane coating is evenly sprayed to the surface of the crown of the rubber plug through a high-pressure spray gun to be heated and cured, the curing temperature ranges from 120 DEG C to 130 DEG C, and the curing time ranges from 10 min to 15 min; and transferring the molded rubber plug into a dry and ventilated environment, standing and curing at normal temperature for at least 2 hours, then carrying out edge removal and light inspection, adding no silicone oil during cleaning, and normally packaging as required. By using the process provided by the invention, fine solid impurities and vulcanized residual silicone oil attached to the surface of the crown part of the molded rubber plug can be quickly and effectively removed, and the adhesive force of the surface coating of the butyl rubber plug is effectively improved.

The utility model provides a kind of glue reduction wall-penetrating terminal for preventing copper bar position deviation, including terminal main body, it is characterized in that, the terminal main body is equipped with multiple glue storage grooves, the glue storage groove is a blind hole structure, the top of the glue storage groove is upper opening, the upper opening is horn shape structure, the end of the glue storage groove is lower passage, the width of the lower passage gradually decreases from top to bottom, the inner wall of the glue storage groove is equipped with the baffle of opposite arrangement, gap for inserting copper bar is equipped between baffle;The baffle is arranged between the upper opening and the lower passage, and the gap height between the upper end of the baffle and the bottom of the upper opening is less than the gap height between the lower end of the baffle and the top of the lower passage.The utility model can occupy the space in glue storage groove by baffle, so as to reduce the amount of glue, reduce glue cost, accelerate glue curing time, also greatly reduce copper bar side deviation influence.

The invention relates to a forming process for a large-size composite material, which comprises the following steps: designing a mold, enabling a gap to exist between a mold cavity and a top plate, and combining the mold; cutting fiber cloth, soaking the fiber cloth in the resin glue solution, and paving the fiber cloth in the mold cavity; the top plate covers the fiber cloth layer group, and the whole mold is placed on a molding press; mold closing is conducted, the top rib plate and the upper edge of the long-side panel are tightly pressed, and therefore redundant resin glue liquid overflows along the gap in the mold closing process; the top rib plate and the upper reinforcing rib are locked through an outer hexagon bolt; uniformly curing the mold in a drying oven; and taking out the product after curing, and cleaning the mold to obtain the composite material product. And in the mold closing process, redundant resin glue liquid overflows from the gap and is directly reserved at the top of the top plate, so that post-treatment is facilitated, and the procedure of cleaning the overflowed glue is simplified. And the mold is directly put into the drying oven for curing treatment, so that the curing time is saved, the consistency of the curing degree is improved, the quality is improved, and the production efficiency is improved.

The application relates to the gluing technical field and discloses a gluing method for constructing a dam by using local solidification, a gluing device and a storage medium. The gluing method comprises the following steps: dividing glue into external liquid glue and internal liquid glue; spraying the external liquid glue and the internal liquid glue at the same time according to a first control instruction; performing solidification treatment on the external liquid glue to construct an external dam according to a second control instruction; coating the external dam and the internal liquid glue on a product to be glued according to a third control instruction; and performing solidification treatment on the external dam and the internal liquid glue sprayed on the product to be glued at the same time according to a fourth control instruction. In the gluing process, the external liquid glue is first subjected to solidification treatment to construct an external dam, so that the internal liquid glue is prevented from flowing out of the external dam to form a glue layer of the internal liquid glue in the external dam; the external dam and the internal liquid glue are simultaneously solidified in the later period, a better glue form is obtained, the solidification time is shortened, and the gluing production efficiency is improved.

The present invention relates to a single-component room temperature fast self-curing insulation packaging material and a preparation method thereof, and belongs to the technical field of insulation materials. The invention solves the technical problem of slow deep curing of single-component room temperature self-curing dealcoholized silicone rubber in the prior art. The insulation packaging material of the present invention has a double-layer structure, and solves the problem of slow deep curing of single-component room temperature self-curing insulation packaging material by adding a hydrophilic polymer, a loaded catalyst and a chain extender, so that the packaging material can be cured at room temperature with a short curing time, and has the advantages of good adhesion, sealing, water resistance, voltage breakdown resistance, and weather UV aging resistance, and is extremely convenient to use. The preparation method of the single-component room temperature fast self-curing insulation packaging material of the present invention has a simple and feasible process, does not use toxic solvents, and is environmentally friendly and safe.

The invention provides a plugging agent composition and application thereof. The plugging agent composition comprises modified lignin, a resin emulsion, a filler, a stabilizer, a cross-linking agent and water, the curing time of the plugging agent composition is adjustable, and an elastomer formed after curing is high in deformation capacity, has enough compression stress, is good in high-temperature and high-salt resistance and can better adapt to changes of holes and pores in a high-temperature and high-salt environment; and the water plugging agent is low in cost, simple in preparation process, simple to operate during field use, good in field adaptability and suitable for water plugging operation of high-temperature and high-salt carbonate fractured-vuggy reservoirs.

The application discloses a kind of formaldehyde-free plant glue, the formaldehyde-free plant glue is two-component foaming glue, the two-component foaming glue includes colloid and curing component, the foaming rate of the formaldehyde-free plant glue is 40-80%.The formaldehyde-free plant glue prepared in the application can extend the operable time, the development time is long before hot pressing, and the curing time is short after hot pressing.The weight ratio of water and isocyanate in the raw material prepared in the application is 0.1996:25, which can balance the gel reaction and foaming reaction of the foaming glue, so that the foaming is uniform without affecting the strength of the board.The cell of the foaming glue after foaming is uniform small pore, which improves the glue layer strength and improves the bonding strength.In the bonding of sandwich structure of board, the bonding strength is large, and the colloid is not easy to be damaged during peeling.

The invention relates to the technical field of building glue, and discloses old house transforming and renovating glue and a preparation method thereof.The old house transforming and renovating glue is prepared from, by weight, 34-50 parts of quartz sand, 28-43 parts of cement, 15-22 parts of gypsum powder, 0.2-0.4 part of water glass, 0.8-3 parts of phosphate phenolic resin, 32-45 parts of water and the like. According to the invention, the phosphate phenolic resin is used for pre-dispersing the quartz sand, so that the dispersity of the quartz sand is improved, the performance of the renovating glue is enhanced, and the phenolic resin has a certain adhesive property and plays a role of a cementing agent in the renovating glue, so that the initial curing time is shortened, the adhesive strength is improved, and the service life of the renovating glue is prolonged. And the phenolic resin is beneficial to improving the water resistance and water resistance of the renovating glue.

This invention discloses a starch-based particleboard adhesive that cures rapidly at medium and low temperatures and its preparation method, belonging to the field of adhesive preparation technology. The starch-based particleboard adhesive of this invention comprises component A and component B; component A includes: 150 parts starch, 200-300 parts water, 20-25 parts concentrated hydrochloric acid, 12-18 parts dilute nitric acid, 25-40 parts sodium hydroxide solution, 6-9 parts initiator, 27-35 parts grafted monomer, and 2-5 parts emulsifier; component B includes: 8-11 parts ethylenediamine, a post-crosslinking agent. This starch-based particleboard adhesive effectively solves the problems of high curing temperature and long curing time in existing starch adhesives. While maintaining a relatively fast curing speed, it can reduce the curing temperature to 105℃, reducing the energy consumption in particleboard production. It can be widely used in the hot-press bonding of particleboard, plywood, fiberboard, and wood blocks.

The present application discloses a molding device. The molding device includes: a first mold and a second mold that are adapted to fit together; a light-transmitting molding mold core, which is provided between the first mold and the second mold, and is used to accommodate a workpiece and cooperate with the first mold and the workpiece to form a molding cavity, and the molding cavity is used to accommodate the rubber material so that the rubber material is cured and connected to the workpiece; wherein the second mold is provided with a light-transmitting area corresponding to the molding cavity, and the light-transmitting area is used to transmit light to promote the curing of the rubber material. In the above-mentioned molding device, after the workpiece is clamped in the molding mold core, the workpiece is fixed to the molding mold core by the cooperation of the first mold and the second mold, and the rubber material is injected into the molding cavity formed by the cooperation of the molding mold core, the first mold, and the workpiece, and the light is transmitted through the light-transmitting area and the molding mold core to irradiate the rubber material in the molding cavity, so that the rubber material can be quickly cured under the irradiation of light, thereby reducing the curing time of the rubber material, improving the efficiency of the rubber material curing, and reducing the manufacturing cost.

The invention relates to the technical field of fireproof coatings, in particular to a fast-curing fireproof coating and a preparation method thereof. Comprising a component A and a component B, the mass ratio of the component A to the component B is (10-12): 100, the component A comprises the following raw materials in percentage by mass: 70-90% of film-forming resin and 10-30% of a dispersing solvent, and the component B comprises the following raw materials in percentage by mass: 5-25% of a plasticizer, 5-15% of a dispersing solvent, 30-70% of an expansion system, 5-30% of inorganic filler and 0.4-2% of reinforced fibers. Wherein the component A or the component B also comprises 0.05-5% of a coupling agent. The fireproof coating provided by the invention is short in curing time and can still be cured especially in a high-humidity environment.

The invention provides phenolic resin for a low-free-phenol friction material and a preparation method of the phenolic resin, and belongs to the technical field of preparation of high polymer materials. The adhesive is prepared from 4000-5000kg of phenol, 2800-3500kg of 37% formaldehyde, 60-75kg of oxalic acid and 256-320kg of a modifier, the curing time of the adhesive is less than or equal to 110 seconds, the fluidity of the adhesive is 20-30mm, the hexamine content of the adhesive is 12%-14%, and the molecular weight of the adhesive is 13000-15000Mw. The preparation method comprises the following steps: mixing phenol and a modifier, adding oxalic acid, and heating to a preset temperature; dropwise adding formaldehyde at a constant speed within a certain time, heating to 100 DEG C, and carrying out reflux reaction at normal pressure for 3 hours; after detecting that the free aldehyde is less than 1%, dehydrating under a vacuum condition until the viscosity is reached and the free phenol is qualified; and finally, cooling by a steel belt, crushing and sieving to obtain a phenolic resin product. The problem that the existing friction material phenolic resin is high in flexibility, heat resistance, hardenability and free phenol content is solved.

A crack-resistant and high-toughness bottom filling glue and its preparation method and application belong to the field of adhesive technology. The bottom filling glue of the present invention includes the following raw material components: epoxy resin, curing agent, filler and silane coupling agent; the curing agent is a compound modified by (E-1) toughening agent. (E-1) Toughening agent includes modified silicone oil containing reactive groups, block copolymer containing reactive groups or rubber containing reactive groups, and the reactive groups include oxirane groups, amino groups, hydroxyl groups or carboxyl groups. The preparation method and application of the bottom filling glue are also provided. The bottom filling glue of the present invention significantly improves the cracking problem in the packaging process. Toughness is improved without losing strength, and properties such as appropriate viscosity, fluidity, modulus, etc. are maintained. The reactivity of the bottom filling glue can also be regulated by adjusting the modification conditions of the curing agent to meet the diversified needs of the curing temperature and curing time of the bottom filling glue system.

The invention discloses a single-component low-modulus epoxy pouring sealant, which is prepared from the following raw materials in parts by weight: 80 to 200 parts of epoxy resin, 30 to 150 parts of curing agent, 100 to 600 parts of filler, 1 to 10 parts of accelerant, 1 to 14 parts of additive and 0.1 to 2 parts of pigment. The pouring sealant disclosed by the invention can be directly used, and double components do not need to be mixed when being used, so that the introduction of bubbles is avoided, and the uniformity and stability of the pouring sealant are improved. The composition has the advantages of low modulus, low curing temperature and short curing time, reduces curing conditions, and avoids the influence on electronic devices. Compared with the prior art, the pouring sealant has the advantages that the modulus after curing is relatively low, internal stress is favorably released, the phenomena of bulging, cracking, shelling and the like of the pouring sealant during long-time working or high-low temperature circulation are reduced, and the high-temperature stability and the elastic modulus can be balanced, so that the pouring sealant has more excellent high-low temperature resistance.

The application discloses a novel two-component road marking paint, which comprises component A and component B, wherein the component A is composed of the following components in parts by weight: fluorosilicon modified epoxy resin 30-50 parts, silicone-acrylate emulsion 20-40 parts, filler 20-40 parts and anti-settling agent 1-3 parts; and the component B is composed of the following components in parts by weight: curing agent 8-16 parts, anti-freezing agent 2-5 parts, drying agent 1-3 parts, film-forming aid 1-3 parts and toughening agent 2-5 parts. The two-component road marking paint of the application overcomes the defects of traditional road marking paint, such as poor storage resistance, long drying time and poor wear resistance. The combination of fluorosilicon modified epoxy resin and silicone-acrylate emulsion in the component increases the wear resistance of the material, and the use of composite curing agent reduces the curing time of the material.

The invention discloses an environment-friendly two-component foam paste filling material and a preparation method thereof. The material is prepared by mixing a component A and a component B, the component A comprises a sodium silicate aqueous solution, polyether polyol, a polyol chain extender, liquid phosphate, a heat-conducting cooling agent, water and other raw materials, wherein the heat-conducting cooling agent is a compound of expanded graphite and hydrotalcite; and the component B comprises polyisocyanate and a diluent. According to the grouting material, heat is shunted through the gelation reaction of sodium silicate, heat dissipation is accelerated and reactant contact is blocked through the synergistic effect of the heat conduction cooling agent, the reaction rate is slowed down through liquid phosphate, effective control over reaction heat release is achieved, the peak temperature can be reduced to 94 DEG C or below, meanwhile, high compressive strength, good flame retardance and proper curing time are kept, and the service life of the grouting material is prolonged. And the potential safety hazard of gas explosion caused by high temperature of the grouting material is solved.

The application relates to the technical field of building glue, and discloses old house reconstruction renovation glue and a preparation method thereof. The old house reconstruction renovation glue comprises 34-50 parts by weight of quartz sand, 28-43 parts by weight of cement, 15-22 parts by weight of gypsum powder, 0.2-0.4 parts by weight of water glass, 0.8-3 parts by weight of phosphate phenolic aldehyde resin, 32-45 parts by weight of water and the like. The phosphate phenolic aldehyde resin is used for pre-dispersing treatment of the quartz sand, the dispersibility of the quartz sand is improved, the performance of the renovation glue is improved, the phenolic aldehyde resin itself has certain bonding performance, plays the role of a cementing agent in the renovation glue, the initial setting time is reduced, the bonding strength is improved, and the phenolic aldehyde resin is beneficial to improving the water resistance of the renovation glue.