34 results about "Phenolformaldehyde foam" patented technology

A composition for producing phenolic foam has at least one phenolic resin, at least one blowing agent, at least one catalyst, and at least one polyethersiloxane. A process produces a phenolic foam with a density of from 5 to 500 kg / m3 with a reaction mixture having the composition.

The utility model discloses a kind of building wallboards with thermal insulation effect, the utility model includes heat preservation structure, adhesive layer, extruded polystyrene board, aluminium foil composite film, anti-cracking layer and facing layer, heat preservation structure includes the first modified phenolic foam board of setting, the second modified phenolic foam board of a plurality of being placed in the first modified phenolic foam board, screw rod passing through the first modified phenolic foam board and nut being screwed on screw rod, adhesive layer is coated in the right side of first modified phenolic foam board, extruded polystyrene board is bonded in the left side of adhesive layer, aluminium foil composite film is bonded in the left side of extruded polystyrene board, anti-cracking layer is bonded in the left side of aluminium foil composite film, facing layer is bonded in the left side of anti-cracking layer.The utility model can adjust thermal insulation effect according to actual use scene by setting heat preservation structure, extruded polystyrene board and aluminium foil composite film, use range is big, then the attenuation rate of thermal insulation performance can be reduced by breathable waterproof layer and nanometer hydrophobic coating.

The utility model discloses a low-temperature-resistant antifreeze plastic-coated composite steel pipe which comprises a plastic-coated composite steel pipe body, the plastic-coated composite steel pipe body comprises a pipe body, the circumferential outer wall of the pipe body is fixedly connected with a heat preservation layer, the circumferential outer wall of the heat preservation layer is provided with a plastic-coated layer, and the circumferential outer wall of the plastic-coated layer is fixedly connected with a heat insulation layer. The outer circumferential wall of the heat insulation layer is coated with a wear-resistant layer, the wear-resistant layer is made of polytetrafluoroethylene, the plastic-coated layer is made of epoxy resin or polypropylene, and the heat preservation layer is made of polyurethane heat preservation materials or phenolic foam heat preservation materials or aluminum foil materials. According to the plastic-coated composite steel pipe, the plastic-coated composite steel pipe body has good heat preservation and heat insulation performance and is more anti-freezing and durable, meanwhile, the plastic-coated composite steel pipe body can be more resistant to corrosion and aging, and the plastic-coated composite steel pipe body can be further reinforced through the steel mesh.

The present invention relates to a composition for producing phenolic foams, comprising at least one phenolic resin, at least one blowing agent, at least one catalyst and at least one polyethersiloxane of formula 1 MaMb1DcDd1, to a process for producing phenolic foams, and to phenolic foams produced by the process.

The utility model relates to the technical field of traditional Chinese medicine nursing, in particular to a moxibustion device for traditional Chinese medicine nursing. According to the moxa stick burning device, moxa sticks are placed in the fixed bin, it can be guaranteed that the medicine efficacy of the moxa sticks is kept to the maximum extent in the burning process, meanwhile, waste of the moxa sticks can be avoided, the moxa sticks can be burnt to the maximum extent by pushing the moxa sticks through the telescopic rod, the medicine efficacy of the moxa sticks can be exerted to the maximum extent, and a patient can be treated; the moxa stick is located in the semi-sealed space, pollution can be reduced, heat generated during combustion of the moxa stick can be isolated through the outer shell made of phenolic foam plastic and the inner shell made of the aerogel felt, and the phenolic foam plastic is a low-price and high-quality light heat insulation material and has the advantages of being light in weight, good in heat insulation performance and the like. The aerogel felt has the characteristics of being soft, easy to cut, small in density, inorganic, fireproof, integrally hydrophobic, environment-friendly and the like, and the aerogel felt and the aerogel felt can achieve the purposes of protecting hands of doctors and preventing scalds.

The present application relates to the field of composite wall, especially to a kind of prefabricated energy-saving composite interior wall.The present application provides a kind of prefabricated energy-saving composite interior wall, which can change the performance of wall according to demand.A kind of prefabricated energy-saving composite interior wall, comprising upper sealing convex plate, lower sealing concave plate, right sealing concave plate, left sealing convex plate, interior wall and assembly mechanism, the left part of lower sealing concave plate is connected with left sealing convex plate on the upper side, the right part of lower sealing concave plate is connected with right sealing concave plate on the upper side, interior wall is slidably connected between the front and rear parts of left sealing convex plate and right sealing concave plate, upper sealing convex plate is connected between the upper side of left sealing convex plate and right sealing concave plate, and assembly mechanism is arranged between right sealing concave plate and left sealing convex plate.The present application places low-frequency sound-absorbing cotton into the first light steel keel, and then places first gypsum board, phenolic foam board and second gypsum board into the second light steel keel in sequence, so as to realize the effect of heat preservation and sound insulation, and people can also put in corresponding materials according to demand, so as to realize different performance of interior wall.

The utility model relates to the technical field of building ventilation and fire protection, in particular to a phenolic aldehyde composite inorganic smoke prevention and exhaust air pipe plate. The structure comprises an outer protective layer, a middle reinforcing layer and an inner fireproof layer which are sequentially stacked from top to bottom, the outer protective layer is a phenolic resin prepreg; the middle reinforcing layer is an inorganic plate core material, and criss-cross reinforcing ribs are embedded in the middle reinforcing layer; the inner fireproof layer is phenolic foam; according to the air pipe plate, the three-layer composite structure design is adopted, the outer protective layer provides flame-retardant protection through phenolic resin prepreg, the middle reinforcing layer achieves balance of high bending strength and light weight through combination of an inorganic plate core material and reinforcing ribs, and the inner fireproof layer remarkably improves the heat insulation performance through phenolic foam; on the premise of ensuring that the fire endurance is not less than 120 minutes, the density of the whole structure is obviously lower than that of a traditional air pipe plate, moisture resistance and weather resistance are both considered, and the air pipe plate is suitable for complex building environments.

A phenolic foam and method for manufacturing same are described herein. The foam is formed from a foamable phenolic resin composition, and a blowing agent, the phenolic foam comprising 1 to 5% by weight of red phosphorus based on the weight of the phenolic foam wherein said phenolic foam has a density of from 10 kg / m3 to 100 kg / m3, a closed cell content of at least 85% as determined in accordance with ASTM D6226 and wherein said foam has a FIGRA0.2 MJ of 120 W / s or less, when measured according to EN13823 and a thermal conductivity of 0.023 W / m·K or less, at 10° C., in accordance with EN 13166:2012. The foam has excellent thermal insulation performance and excellent fire performance.

The invention relates to the technical field of phenolic aldehyde spraying foam, in particular to mining phenolic aldehyde spraying foam and a preparation method thereof.The preparation method comprises the steps that phenolic resin, long-chain polyhydric alcohol and a catalyst are stirred according to the proportion, mixed to be uniform and then filtered, and a component A is obtained; stirring isocyanate, a flame retardant and a foam stabilizer according to a ratio, uniformly mixing, and filtering to obtain a component B; and proportioning the component A and the component B to obtain the mining phenolic aldehyde spraying foam. The mining phenolic aldehyde spraying foam prepared by the invention has excellent flame retardant property, and can effectively reduce the fire risk. The foam has high bonding strength with the coal mine tunnel wall, is not easy to fall off, has moderate foaming times and compression ratio, and can be used for filling tunnel gaps and keeping the tunnel gaps stable. The foam pulverization rate is low, the service life is long, and a reliable solution is provided for underground water prevention, water plugging, filling, corrosion prevention and the like of a coal mine. Therefore, the problem that the existing phenolic foam board is poor in adaptability when being applied to the underground coal mine is solved.

The utility model relates to the technical field of pipeline heat preservation, in particular to a heat preservation pipe shell structure based on phenolic foam and a heat preservation pipe shell. The structure sequentially comprises a lining layer, a reflecting layer attached to the outer surface of the lining layer and a protective layer wrapping the outer surface of the reflecting layer from inside to outside. The lining layer is made of phenolic foam; the reflecting layer is made of aluminum foil composite glass fabric; and the protective layer is made of a flame-retardant high polymer material or a fiber reinforced composite material. Through composite design and combination of a mortise and tenon type concave-convex groove connection structure, the thermal insulation performance, the mechanical strength, the moisture resistance and the installation efficiency are remarkably improved, and the structure is suitable for various harsh working conditions.

The utility model relates to the technical field of seawater desalination, in particular to a seawater desalination planting pot. The planting pot comprises an outer-layer transparent cylinder for collecting fresh water and an inner-layer transparent cylinder for storing seawater, a phenolic foam layer is arranged in the inner-layer transparent cylinder, the lower part of the phenolic foam layer is a seawater adsorption layer, and the upper part of the phenolic foam layer is a black carbonization layer; a purification foam layer and a planting basket are sequentially arranged at the upper part of the outer-layer transparent cylinder from bottom to top; a plant root system suspension layer, a planting matrix and a plant layer are sequentially arranged in the planting basket from bottom to top; the seawater adsorption layer of the planting pot can effectively separate salt and prevent the salt from entering the planting layer, the black carbonization layer has the heat absorption characteristic and can accelerate generation of fresh water, seawater desalination is achieved through the synergistic effect of the seawater adsorption layer and the carbonization layer by means of natural evaporation and material adsorption, the planting process is simplified, and the planting efficiency is improved. The fresh water purification device is suitable for regions deficient in fresh water and supports planting of various vegetables and flowers.

The utility model relates to the technical field of phenolic foam modification processing, in particular to a blending device for phenolic foam filled modified polyethylene plastics, which is characterized in that when the blending device is used, an anti-blocking component is started, so that the anti-blocking component conveys materials in a storage hopper into a material distributing component through a material conveying pipe; the material distribution assembly disperses materials in the blending tank, and after stirring is completed, the materials are discharged through the discharging assembly, so that the mixing and stirring efficiency is improved; comprising a blending tank, supporting legs, a storage hopper, a supporting rod and a material conveying pipe, the multiple sets of supporting legs are arranged at the bottom end of the blending tank, the supporting rod is arranged at the bottom end of the storage hopper, the bottom end of the supporting rod is connected with the top end of the blending tank, and the material conveying pipe is arranged at the output end of the bottom of the storage hopper; and a material distributing assembly is arranged on the blending tank and rotationally communicates with the output end of the material conveying pipe, a stirring assembly is arranged at the bottom end of the material distributing assembly, and an anti-blocking assembly is arranged in the storage hopper.

The application discloses a preparation method of a phenolic resin synthesized by partially using PMI foam waste, relates to the technical field of resin synthesis and application, and realizes the reuse of PMI corner powder, reduces the preparation cost of the phenolic resin, and simultaneously improves the mechanical properties of the phenolic resin. Different phenolic resins can be prepared by using different formula resins and different powder dosages, the phenolic resins are applied to different fields, and the application has the significance of environmental protection. The phenolic resin is water-soluble thermosetting resol phenolic resin, and can be used as raw material of phenolic foam; by reasonably controlling the performance parameters of the resin, the resin can also be used as mould pressing material, laminated board material, insulating material, weather-resistant fiber board, metal casting mould and glass steel mould pressing material glue, coating material and the like.

The invention provides a composite material light enclosure bulkhead used in a ship cabin and a preparation method, the composite material light enclosure bulkhead comprises a flame-retardant core layer and panels on two sides of the flame-retardant core layer, and a flame-retardant adhesive is coated between the panels and the flame-retardant core layer; the flame-retardant core layer comprises at least one of fiber reinforced phenolic foam, hard polyimide foam, phenolic foam filled honeycomb foam and a hard inorganic foam core material, and the panel is a reinforced fiber phenolic resin composite board; the composite material light enclosure bulkhead has the advantages of flame retardance, light weight, structural strength, marine environment resistance and the like, efficient fire prevention and flame retardance can be achieved without wrapping the outer surface with a fireproof insulating material, and the composite material light enclosure bulkhead can be applied to non-bearing cabin wall plates in ship cabins, high-speed train compartment wall plates, building internal space partitions and other scenes.

A phenolic foam and method for manufacturing same are described herein. The foam comprises at least on chlorinated hydrofluoroolefin, at least one hydrofluoroolefin and at least one hydrocarbon. The foam has excellent thermal insulation performance and excellent fire performance.

The invention discloses an extraction process of apple polyphenol, and belongs to the technical field of agricultural product extraction. Hydroxyl on the surface of chitosan is grafted with a sulfydryl-containing silane coupling agent, sulfydryl-modified chitosan is combined with polar groups on the surface of phenolic foam carbon through electrostatic attraction, so that the sulfydryl-modified chitosan is loaded on the foam carbon; modified foam carbon is obtained; the preparation method comprises the following steps: initiating ring opening of an anhydride group of maleic anhydride through hydroxyl of hydroxypropyl methacrylate, and then copolymerizing with isocyanate and polyether polyol to obtain double-crosslinking interpenetrating resin; according to the method, the apple polyphenol extract is purified successively by utilizing the bi-crosslinking interpenetrating resin and the modified foam carbon, the surface of the modified foam carbon is rich in sulfydryl and hydroxyl, the phenolic hydroxyl and sulfydryl of apple polyphenol can form a strong hydrogen bond or thioether bond, the specific surface area and porosity of the modified foam carbon are high, the apple polyphenol extract is easy to purify, and the apple polyphenol extract is easy to purify. The modified foam carbon skeleton has high compression strength and low swelling rate, and has a stable structure in organic elution solvents such as ethanol, acetone and the like.

The application belongs to the field of planting, and aims at the problem of single function of the existing plant rooting culture support, and specifically provides application of a phenolic foam-nano montmorillonite composition in preparation of a porous matrix block for rooting of somatic embryo seedlings. Any one of the phenolic foam-nano montmorillonite compositions Y1-Y3 is disclosed to be applied in preparation of a porous matrix block for rooting of somatic embryo seedlings: Y1 is applied in preparation of a porous matrix block for rooting of somatic embryo seedlings; Y2 is applied in promotion of plant lateral root formation; and Y3 is applied in plant planting. The composition is obtained by foaming and solidification of the phenolic foam-nano montmorillonite composition after adding nano montmorillonite into a phenolic resin prepolymer. The matrix block prepared from the phenolic foam-nano montmorillonite composition can significantly promote lateral root formation of plants, especially Picea somatic embryo seedlings, greatly enhance the absorption and fixation capacity of the seedlings, and significantly improve the growth amount of seedling height, the lateral root occurrence proportion and the average lateral root number.

The application relates to the field of building materials, in particular to a graphene modified phenolic foam sound insulation board and a preparation method thereof. The graphene modified phenolic foam sound insulation board comprises an outer layer and a phenolic foam layer arranged between two outer layers, and the raw materials of the phenolic foam layer comprise phenolic resin, an emulsifier, graphene, a foaming agent and a curing agent; the mass ratio of the phenolic resin, the emulsifier, the graphene, the foaming agent and the curing agent is 1:(0.08-0.2):(0.02-0.06):(0.03-0.09):(0.1-0.3). The phenolic foam layer prepared from phenolic foam and graphene sheets can form resonance absorption with the sound wave vibration of a floor, so that the effect of noise reduction and sound insulation is achieved. The phenolic foam board with added graphene has high structural strength and good fireproof performance, and has great practical application value in the field of building sound insulation.

To provide a phenol resin foam material having good performance characteristics.SOLUTION: A composition for producing a phenol resin foam material contains at least one kind of phenol resin, at least one kind of foaming agent, at least one kind of catalyst, and at least one kind of polyether siloxane by formula 1: MaMb1DcDd1, wherein maximum 50 mol% of a residue R1 in polyether siloxane by formula 1 is each independently the same or different alkyl residue having 6 to 18 carbon atoms, and 0.1 to 20 pts.wt. of the total amount of at least the one kind of polyether siloxane by formula 1 is contained based on 100 pts.wt. of the whole phenol resin to be used.SELECTED DRAWING: None

The utility model discloses a building thermal insulation material, which relates to the technical field of building materials, and comprises a base layer wall body, a curtain wall keel and an outer wall facing layer, one side of the curtain wall keel is fixedly connected with a thermal insulation layer, and the other side of the curtain wall keel is fixedly connected with an anti-crack protective layer. According to the utility model, the heat insulation and preservation plate is arranged, and meanwhile, a vacuum state is formed in the heat insulation and preservation plate, so that three heat transfer modes of heat radiation, heat conduction and heat convection can be effectively blocked, and the energy efficiency of a building is obviously improved; the phenolic foam layer and the fiber glass wool board are arranged, and the phenolic foam layer has the advantages of being low in heat conductivity coefficient, good in heat preservation and heat insulation performance, fireproof, flame-retardant, non-toxic, green, environment-friendly and sound-proof, and meanwhile, the fiber glass wool board is a superfine fiber glass wool board; the heat conductivity coefficient is low, the heat insulation performance is good, and sound absorption and noise reduction are realized.

The utility model relates to the technical field of sound insulation plates, in particular to a phenolic foam sound insulation plate. The structure sequentially comprises a surface sound absorption layer, a first enhancement layer, a main sound insulation layer, a second enhancement layer, a fireproof layer and a bottom reflection layer from top to bottom. The surface sound-absorbing layer is made of open-cell phenolic foam, and a hemispherical groove is formed in the surface of the surface sound-absorbing layer; the main sound insulation layer is made of closed-cell phenolic foam; the first reinforcing layer and the second reinforcing layer are made of glass fiber gridding cloth and are embedded into the upper surface and the lower surface of the main sound insulation layer respectively. The fireproof layer adopts a nano aluminum hydroxide coating and is coated on one side, far away from the main sound insulation layer, of the second enhancement layer; the bottom reflecting layer is an aluminum foil film and covers the side, away from the main sound insulation layer, of the fireproof layer. Through the design of a multi-layer composite structure, the sound insulation performance and the strength and fireproof performance of the sound insulation board are effectively improved, multiple noise reduction mechanisms of sound absorption, blocking and reflection are formed, and the sound insulation board can be widely applied to building and industrial scenes and has environment friendliness and economical efficiency.

The utility model provides a kind of building waterproof heat preservation structure, including mounting bracket, mounting plate, first leveling layer, first waterproof layer, heat preservation layer, second waterproof layer, second leveling layer and facing layer;The mounting bracket is fixed on building outer wall, and the mounting plate is fixed on mounting bracket;The first leveling layer, first waterproof layer, heat preservation layer, second waterproof layer, second leveling layer and facing layer are sequentially stacked from inside to outside in the surface of mounting plate, wherein the first leveling layer is innermost layer, and the facing layer is outermost layer, and the heat preservation layer is composite insulation board, including inner layer's extruded polystyrene foam board and outer layer's phenolic foam board, and two layers are fixed by adhesive bonding between adhesive bonding.The utility model can adapt to cold and rainy area environment, reduce energy loss and water seepage problem.

The utility model relates to the technical field of air conditioner ventilation systems, in particular to a light high-strength phenolic aldehyde composite air conditioner air duct plate. The utility model provides a light high-strength phenolic aldehyde composite air conditioner air pipe plate which is of a multi-layer composite structure and comprises an outer protective layer, a reinforcing grid layer, a phenolic aldehyde foam core layer and a lining functional layer from bottom to top, and further comprises a stepped edge connecting structure which comprises a convex part and a concave part which can be wedged with each other. The light weight, high structural strength, high sealing performance, wear resistance, corrosion resistance, sound insulation, noise reduction, moisture resistance, bacteria resistance, heat insulation and fire prevention functions are comprehensively integrated, rapid installation of the plate can be achieved through the stepped edge connecting structure, and tool benefits are remarkably improved.

This invention proposes a method for coating phenolic foam boards and the phenolic foam board itself, relating to the field of building fireproof and thermal insulation materials technology. The method includes: surface activation treatment of the phenolic foam board; spraying an epoxy resin primer to form a pre-sealing layer and allowing it to reach a semi-cured state; immersing the semi-cured board in an epoxy resin topcoat until fully submerged and then draining; subsequently heating until the coating is fully cured; and curing at room temperature to obtain a phenolic foam board with six fully enclosed coatings. This invention employs a composite process combining spray pre-sealing and dip coating, solving the problems of edge coverage and thickness uniformity that cannot be achieved by a single process. The pre-sealing layer is controlled in a semi-cured state, forming a chemical cross-link with the dip coating layer, resulting in a strong interfacial bond. It can be widely used in building insulation, cold chain cold storage, cleanrooms, fireproof air ducts, and other fields.

The application provides a phenolic foam-based solar interface evaporator and a preparation method thereof. Long arms, short arms, top beams and central cross beams are arranged on a phenolic foam base body. The long arms are located on both sides of the base body. The short arms are connected to the inner sides of the long arms through the top beams. The cross beams are connected to the short arms. A carbonization area is arranged on the upper surface of the cross beam. The heat radiation absorption and steam escape driven heat convection of the light-heat conversion layer systematically improve the evaporation efficiency. The three-dimensional porous carbon framework with high specific surface area of the carbonization area effectively enhances the sunlight absorption and promotes water evaporation. During the evaporation process, the carbonization area realizes local light-heat evaporation. The vertical arms simultaneously absorb the heat radiation from the carbonization area and the heat convection of steam. The capillary water transport and gravity auxiliary mechanism are combined to realize the efficient synergistic conversion of light-heat-steam. The evaporator still maintains excellent performance under the condition of area expansion. The evaporation rate is much higher than that of the traditional two-dimensional evaporator. The evaporator has important application potential in the fields of seawater desalination and sewage treatment.

The invention discloses a phenolic aldehyde and polyurethane in-situ composite heat-preservation sandwich panel as well as a preparation method and application thereof, and relates to the field of heat-preservation materials. The sandwich board comprises a phenolic foam core material, epoxy totally-closed coating layers coating six surfaces of the phenolic foam core material, polyurethane foaming fusion layers coating the outer surfaces of the epoxy totally-closed coating layers, and panels compounded on the outer surfaces of the polyurethane foaming fusion layers; the epoxy totally-enclosed coating layer is composed of a permeable seal primer layer and a compact isolation finish paint layer. Through the double-layer epoxy resin totally-closed coating layer, the sealing effect that the phenolic aldehyde core material is free of pinholes and coating leakage is achieved, air and water vapor are effectively isolated, and the problems that the surface of a traditional phenolic aldehyde plate is acid-regurgitated, loose, prone to powder falling, high in water absorption rate and poor in size stability are solved; the double effects of chemical crosslinking and physical anchoring are formed, the structural stability is improved, and meanwhile the fireproof performance of the phenolic aldehyde core material is not affected.

The invention relates to a composition for producing phenolic foams, comprising at least one phenolic resin, at least one blowing agent, at least one catalyst and at least one foam stabilizer of formula 1. The invention also relates to a method for producing phenolic foams, to phenolic foams produced by said method, and to the use of said phenolic foams.

The utility model discloses an efficient heat-insulation noise-reduction concrete insulation board body structure, which relates to the technical field of concrete insulation boards and comprises an insulation board main body, aerogel felt layers and a sound insulation board, the aerogel felt layers are arranged on the upper side and the lower side of the insulation board main body, and rock wool board layers are arranged outside the aerogel felt layers. A sound insulation board is arranged outside the rock wool board layer, meanwhile, noise reduction through holes are formed in the sound insulation board, sound absorption cotton rings are arranged in the noise reduction through holes, a phenolic foam heat insulation board is arranged outside the sound insulation board, and mounting sliding grooves are formed in the two adjacent edges in the heat insulation board body; installation sliding blocks are additionally arranged outside the two adjacent edges of the other side of the heat preservation plate body, threaded installation grooves are formed in the installation sliding blocks, and meanwhile installation bolts are connected into the threaded installation grooves. According to the efficient heat-insulation and noise-reduction concrete heat-insulation board body structure, a concrete heat-insulation board can have the practical performance of heat insulation and noise reduction, and the overall practicability of the concrete heat-insulation board is improved.

The utility model belongs to building energy -conserving thermal -insulation technical field especially relates to a building energy -conserving thermal -insulation structure, including outer frame and butt joint frame, and the same sealing isolation glue is inserted and connected to install in outer frame and butt joint frame, and the rock wool board and phenolic foam layer are inserted and connected to install in the both sides of sealing isolation glue of outer frame and butt joint frame respectively, still include: inner wall board, inner wall board is located one side of outer frame and butt joint frame, and both ends of inner wall board all are fixedly installed with side plate, two elastic plates are fixedly installed on outer frame, two L -shaped slots are set up on butt joint frame, and one end of elastic plate extends to the corresponding L -shaped slot, and the both sides of outer frame and butt joint frame all are set up with two sliding slots, four limit slots are set up on inner wall board, and the sliding rod is slidably installed in sliding slot, the overall device in the utility model does not need to use bolt to be fixed when installing inner wall board, more need not to use spanner, and the installation and removal are convenient and fast, and it is convenient for staff to operate, saves time.