84results about How to "Does not affect bond strength" patented technology

The invention discloses a fast-curing structural adhesive comprising the following components: 20-60 parts of epoxy resin, 10-40 parts of acrylic resin, 5-30 parts of acrylate monomers, 2-30 parts of a latent epoxy resin curing agent, 0.5-5 parts of an one-component epoxy stabilizer, 2-5 parts of an acrylate photoinitiator, 1-20 parts of fillers, and 0.1-2 parts of an auxiliary agent. The invention further discloses a preparation method of the fast-curing structural adhesive. The fast-curing structural adhesive prepared according to the components and the preparation method effectively solves defects and insufficiencies of long positioning time and fully cured time, and poor resistance to heat aging properties.

The invention discloses a method for manufacturing an anti-insect and anti-mold oriented strand board with full eucalyptus leftover materials. The manufacturing method comprises the following steps of: preparing materials, drying, peeling and removing impurities, sorting and storing, respectively gluing on a surface core layer, hierarchically paving, in advance hot press molding, and sanding wood finishes; an isocyanate sawdust powder hybrid adhesive is coated on the surface, and an anti-insect and anti-mold composite urea-formaldehyde resin adhesive is coated on the core layer; wood shavings on the core layer are divided into three-layer structures, comprising intermediate layer of core layer, upper surface layer of core layer and lower surface layer of core layer; the intermediate layer of the core layer is paved longitudinally, and the upper surface layer of the core layer and the lower surface layer and surface layer of the core layer are paved horizontally. For the oriented strand board prepared by the method, the static bending intensity in a parallel direction is in a scope of 33-39 MPA, the parallel elasticity modulus is in the scope of 4614-4779 MPA, the vertical elasticity modulus is in the scope of 1504-1771 MPA, the thickness swelling rate of water absorption in 24 h is in the scope of 10%-17%, and the vertical nail-holding power reaches up to 89000N. In the manufacturing method, a problem that the board is easy to suffer from erosion of white ants and moths is thoroughly solved by adding an anti-insect and anti-mold additive, and the service life of the board is prolonged.

The invention relates to a photocatalystc composite floor board, and belongs to the field of a functional environment-friendly healthy floorboard. The formaldehyde emission content of the composite floorboard is less than 0.3mg/L; the antibacterial rate is higher than or equal to 90 percent; the surface wear-resistant coefficient is less than or equal to 0.08g/100r; a substrate layer is an oriented shaving board layer; the oriented shaving board layer comprises an upper surface layer and a lower surface layer which are formed by glue mixing wood shavings in longitudinal arrangement according to the fiber direction and a core layer shaving layer formed by glue mixing wood shavings in transverse arrangement according to the fiber direction; and a decoration layer, a wear-resistant primer layer and a photocatalystc antibacterial paint decoration layer are sequentially arranged on the substrate layer. A production process of the photocatalystc composite floor board comprises the steps of shaving board layer sorting, glue preparation, glue distribution and assembling for the first time, cold pressing for the first time, core trimming, glue distribution and assembling for the second time, cold pressing for the second time, hot pressing for the first time, fixed-thickness sanding, edge cutting, puttying, polishing, sorting, reconditioning, glue distribution and veneering, cold pressing for the third time, hot pressing for the second time, multi-blade sawing, sanding, double-end milling, priming, finish paint preparing and finish paint painting. The composite floorboard has the advantages of good antibacterial function, high strength, good wear-resistant performance and comfortable foot feeling.

The invention discloses an adhesive having a rapid fixing structure. The adhesive comprises a component A and a component B, the component A comprises 20-50 parts of an epoxy resin, 5-52 parts of a (methyl) acrylate monomer, 5-20 parts of an elastomer, 0.5-5 parts of a peroxide radical initiator, 0.01-1 part of a free radical polymerization inhibitor, 0.01-0.5 parts of a metal ion complexing agent, and 0.1-2 parts of an assistant, and the component B comprises 5-50 parts of an epoxy resin room-temperature curing agent , 1-5 parts of an epoxy resin curing promoter, 5-52 parts of the (methyl) acrylate monomer, 5-20 parts of the elastomer, 0.1-5.0 parts of a reducing agent, 0.001-0.5 parts of a promoter, and 0.1-2 parts of the assistant. The adhesive having a rapid fixing structure prepared by using the above components and the preparation method effectively solves the disadvantages of long fixing time, long complete curing time, bad damp-heat aging resistance and the like of the prior art.

The invention relates to a high-temperature resistant single-component epoxy structure glue, a preparation method and a using method thereof. The epoxy structure glue is prepared by raw materials based on parts by weight: 100 parts of epoxy resin, 10-25 parts of toughening agent, 20-40 parts of filler, 1-5 parts of coupling agent, 5-10 parts of curing agent and 3-8 parts of thixotropic agent. The high-temperature resistant single-component epoxy structure glue has certain properties in the aspects of metal and nonmetal, thus not only having the adhesive bonding function, but also being used for filling gaps; and due to the low coefficient of thermal expansion, the cured product can be used for a long time at higher temperature and does not crack by internal stress.

The invention relates to UV (ultraviolet)-curable adhesive composition and an application thereof. The UV-curable adhesive composition is prepared from the following components in parts by weight: 50-60 parts of a polyurethane acrylate oligomer, 30-40 parts of an acrylate monomer, 3-5 parts of a photoinitiator and 1-5 parts of discoloration powder, wherein the discoloration powder is blackened after being irradiated by UV light and is irreversibly discolored. The UV-curable adhesive composition can be used in assembly of LCD (liquid crystal display) and OLED (organic light emitting diode) display products.

The invention provides a method for producing an antiseptic oriented strand board through full-eucalyptus leftover materials. The method comprises the procedures of material preparing, drying, peel and impurity removing, sorting and storing, surface layer and core layer gluing, classified paving, preheating press forming, sanding facing and the like. A surface layer is coated with an isocyanate wood dust powder composite adhesive, a core layer is coated with an antiseptic composite urea-formaldehyde resin adhesive, and core layer wood shavings are of three-layer structures including a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer. The core layer middle layer is longitudinally laid, and the core layer upper surface layer, the core layer lower surface layer and the surface layer are transversely laid. According to the oriented strand board prepared through the method, the static bending intensity in the parallel direction ranges from 34 MPa to 38 MPa, and the parallel elasticity modulus ranges from 4,610 MPa to 4,780 MPa; and the vertical elasticity modulus ranges from 1,500 MPa to 1,774 MPa, the water absorption thickness swelling rate in 24 h ranges from 11% to 16%, and the vertical nail holding force reaches up to 89,000 N. Meanwhile, through adding of an antiseptic agent, the problem that panels are prone to suffering from corrosion of wood-destroying fungi, moulds and white ants is thoroughly solved, and the service life of the panels is prolonged.

The invention discloses a method for producing a particle board through anti-insect and anti-mold composite urea formaldehyde resin. The method comprises the procedures like material preparation, drying, veneer removing and grit removing, mixing glue, and hot press molding. The key of the production method is that melamine modified urea formaldehyde resin is adopted as a main material of an adhesive; oxidized starch is added as a viscous complexing agent; polyvinyl alcohol is adopted as a flexibilizer; hydrogenated rosin is adopted as an antioxidant; polyisocyanate is adopted as a curing agent; and triethoxyisobutylsilane is adopted as a bridging agent. According to the method, the anti-insect and anti-mold composite urea formaldehyde resin is prepared through adopting phenolated lignin as a formaldehyde capture agent and adding an anti-insect and anti-mold agent, and the particle board produced through the anti-insect and anti-mold composite urea formaldehyde resin has the advantages that the residual amount of formaldehyde is low and the anti-insect and anti-mold effect is good, has a quite high inhibiting effect on breeding of aspergillus, trichoderma and penicillia, and has instantaneous killing force and a long-term prevention effect on board powder-post beetles.

The invention relates to an aqueous neoprene adhesive agent and the preparation method, which belongs to the fields of the elastic bonding adhesive with porous material and the preparation. According to the mass ratio, the aqueous neoprene adhesive agent comprises 100 mass parts of high crystalline aqueous neoprene latex, 10 mass parts to 35 mass parts of polyacrylate, 0.2 mass part to 2 mass parts of aromatic poly alcohol and ether aqueous dispersion, 0.001 to 0.01 mass part of penetrating agent, and 0.001 to 0.01 mass part of defoaming agent. The invention provides the aqueous neoprene adhesive agent without the pollutant of triphen and the like which is urgently need on the market. The aqueous neoprene adhesive agent has the advantages that the viscosity is moderate, the operating time is long, the adhesive agent can be suitable for the flow line production, spraying and brushing, different construction conditions and operating requirements can be satisfied, and the application scope is wide.

The invention relates to polyurethane two-component foaming adhesive used for the building to adhere boards, metal, glass, marble, polystyrene boards, extruded boards (XPS), polyurethane boards, cement boards and other materials. The polyurethane two-component foaming adhesive has controllable adhering time, high strength and strong adhesive power, can resist heat, coldness and hydrolysis, does not need the fastener and can be directly adhered to the old wall to save the labor hour and the cost. The polyurethane two-component foaming adhesive is formed by mixing white adhesive A and fulvous adhesive B which have wide mass ratio range, and if being formed by 100 portions of adhesive A and 50-110 portions of adhesive B, the polyurethane two-component foaming adhesive can be still adhesive, can not be affected in the adhesive strength and can be operated between 3 DEG C below zero and 5 DEG C below zero. The adhesive A and the adhesive B can be proportioned accurately and can be adhesive after being stirred evenly. The polyurethane two-component foaming adhesive can be slightly foamed if the wall is slightly uneven so as to fill in the gap between the wall and the board and prevent the rainwater entering the gap to generate the isolating layer. The polyurethane two-component foaming adhesive can achieve better effect of insulating heat.

The invention relates to a photocatalyst flame-retardant antibacterial floor and belongs to the field of functional environment-friendly health floors. The floor has a formaldehyde release limit less than 0.3 mg/L, an antibacterial rate not less than 90%, and surface wear resistance not less than 0.08 g/100r. A base layer is a flame-retardant directional chipboard layer, comprising upper and lower surface layers of glue-mixed shavings, a core shaving layer, a first flame-retardant layer and a second flame-retardant layer; a decorative layer, a wear-resistant undercoat layer and a photocatalyst antibacterial oil facing layer are disposed in order above the base layer; a balance layer is disposed below the base layer. A production process of the floor comprises chipboard layer regulating; glue mixing; first gluing and assembly; first cold pressing; core dressing; second gluing and assembly; second cold pressing; first hot pressing; fixed thickness sanding; edging; puttying; polishing; sorting; curing; gluing and facing; third cold pressing; second hot pressing; multi-piece sawing; sanding; double end milling; undercoating; top coat blending; top-coating. The composite floor has high antibacterial performance, high strength, good wear resistance and good foot comfort.

The invention provides jointing glue for stone, which at least comprises the following components in parts by weight: 100 parts of an air-dried unsaturated polyester resin, 1-5 parts of hydrogenated castor oil, 0-60 parts of micron-sized silica and 1-15 parts of an antishrinking agent. The jointing glue overcomes the defects of taking the existing common marble glue as the jointing glue such as poor air-drying properties, poor antishrinking capability, poor permeability and the like. The jointing glue for stone has the advantages of good permeability, no tackiness after curing, strong antishrinking capability, glue brightness after polishing and the like. The jointing glue enriches varieties of the marble glue and solves the problem of jointing difficulty among the stone.

The invention relates to special colored stone material caulking sealant, which at least comprises 100 weight parts of air-dried unsaturated polyester resin, 1 to 5 weight parts of hydrogenated castor oil, 10 to 250 weight parts of filling materials and 1 to 15 parts of antishrinking agents. The invention overcomes the defects of poor air-dried performance, low antishrinking capability, poor permeability and the like when the existing ordinary marble glue is used as the caulking sealant. The stone material caulking sealant of the invention has the advantages of good permeability, hand inadhesion after being cured, strong antishrinking capability, sealant brightness after grinding and the like. The invention enriches the variety of the marble glue, and solves the caulking problem between stone materials.

The invention provides middle-high density plywood with added bamboo charcoal and a method for adding the bamboo charcoal thereof, and belongs to the technical field of density plywood and the method of adding the bamboo charcoal thereof. According to the middle-high density plywood with added the bamboo charcoal, the dosage of bamboo charcoal powder is one tenth to one thousandth of the weight of the density plywood. A hole is formed in a pipeline wall carrying out secondary air supply by large cyclone, the outlet of a spiral conveyer is communicated with the hole in the pipeline wall carrying out the secondary air supply by the large cyclone, the inlet of the spiral conveyer is communicated with a stock bin of the bamboo charcoal powder, the bamboo charcoal powder and wood fibers are sent to a spreading machine through the secondary air supply and are evenly paved on a preforming press, and then hot press molding is carried out. The surface of the middle-high density plywood presents tiny black dots after the bamboo charcoal is added, and physical experiments carried out on the middle-high density plywood shows the facts that the combination intensity of the inner portion of the density plywood is not influenced, the surficial combination intensity of the density plywood is not influenced either, and the veneer attaching of any material on the density plywood added with the bamboo charcoal is not influenced. The middle-high density plywood with added bamboo charcoal and the method for adding the bamboo charcoal thereof meet the technical standard of domestic middle-high density fiberboards.

The invention discloses a method for producing total-eucalyptus plywood by adopting anticorrosive composite urea resin. The method comprises the following steps: rotatably cutting wood boards; drying each board; gluing; performing cold pressing for three times; stewing and conditioning; performing hot pressing for three times; cooling and conditioning; determining the thickness of a board blank and sanding the board blank. The key points of the production method disclosed by the invention are that melamine modified urea resin is adopted as a main material of an adhesive and is added with oxidized starch to form a viscous compound, polyvinyl alcohol is taken as a toughening agent, hydrogenated rosin is taken as an antioxidant, polyisocyanate is taken as a curing agent, isobutyl triethoxy silane is taken as a bridging agent, phenolated lignin is taken as a formaldehyde catcher and a preservative is also added to prepare the anticorrosive composite urea resin. The total-eucalyptus plywood produced by adopting the anticorrosive composite urea resin has the advantages of low formaldehyde residual volume and good corrosion resistance, is relatively good in resistance to wood-destroying fungi, mould and white ants, and is prolonged in service life.

The invention relates to a biaxial turnover cloth inspecting machine and a cloth inspecting method for glass fiber felt cloth. At present, special equipment for glass fiber bonded chopped strand mat cloth inspecting turnover is not available. The cloth inspecting machine provided by the invention comprises a pay-off shaft assembly and a take-up shaft assembly and is characterized in that the pay-off shaft assembly comprises a pay-off rotating shaft device, a pay-off top shaft seat device and a tension regulating device, and the pay-off rotating shaft device comprises a pay-off rotating shaft; the tension regulating device is arranged on a pay-off rotating shaft body seat and connected with one end of the pay-off rotating shaft, and the pay-off top shaft seat device is detachably connected with the other end of the pay-off rotating shaft; the take-up shaft assembly comprises a take-up rotating shaft device, and a take-up top shaft seat device is detachably connected with the other end of a take-up rotating shaft; and the take-up rotating shaft is parallel to the pay-off rotating shaft. The cloth inspecting method sequentially comprises the cloth loading process, the cloth inspecting process and the cloth unloading process. The cloth inspecting machine is reasonable in structural design and can be used for inspecting glass fiber felt cloth and performing turnover treatment on a felt coil of a glass fiber chopped strand mat, wherein black matters are attached to the appearance of the glass fiber chopped strand mat.

The invention relates to a glass fiber net reinforcement part, an exterior wall heat-preservation anti-cracking structure and a construction method of the exterior wall heat-preservation anti-cracking structure. The glass fiber net reinforcement part is of an integral sheet structure formed by two fixing sheets with the same shape and a connecting bridge connected between the two fixing sheets, and a threaded hole penetrating through a screw is formed at the center position of the fixing sheet. In addition, the glass fiber net reinforcement part is designed to be used for reinforcing the connecting strength of an anti-cracking mortar layer and a heat preservation layer, the glass fiber net reinforcement part has a simple structure, has low cost, can be constructed conveniently, and has a good fixing effect, can compensate the strength loss when the binding power between the anti-cracking mortar layer and the heat preservation layer is low, and can ensure the bonding quality and the construction reliability of the follow-up surface layer, the construction operation is simple, the construction difficulty is not increased, the original construction quality and the construction efficiency are not influenced, the using amount of the anti-cracking mortar can be used to a certain extent, the cost is reduced and the glass fiber net reinforcement part can be widely applied to exterior wall construction.