4305 results about "Adhesive cement" patented technology

A dicing die-bonding film has a supporting substrate, an adhesive layer formed on the supporting substrate, and a die-bonding adhesive layer formed on the adhesive layer, and further has a mark for recognizing the position of the die-bonding adhesive layer. It is possible to provide a dicing die-bonding film in which in the case a semiconductor wafer and the dicing die-bonding film are stuck onto each other, the position of the die-bonding adhesive layer in the film can be recognized.

The invention discloses a method for producing a flame-retardant veneer plywood, which comprises the following steps: placing wood veneers into a flame retardant aqueous solution to perform dipping treatment, applying the mixed adhesive to the upper surfaces and the lower surfaces of the veneers after the veneers are dried, assembling the veneers into a plate blank according to the principle that odd layers are crossed and symmetrical with even layers, and then performing the processes of cold pressing, hot pressing, cutting edge, sanding, surface treating and the like to obtain the flame-retardant veneer plywood product the thickness of which is between 2.7 and 20 millimeters. The flame retardant in the method is a mixture of low ammonium polyphosphate, ammonium phosphate, ammonium pyrophosphate, urea phosphate, boric acid and pentaerythritol, and the mixed adhesive is a uniform mixture of wood adhesive, filler, and a curing agent. The flame-retardant decorative veneer plywood prepared by the method has the advantages of excellent flame-retardant and fireproof performance, environmental prevention performance, and good mechanical properties.

The invention discloses closed type ultraviolet light solidifying waterborne polyurethane resin and a method for preparing the same. The polyurethane resin and the method are characterized in that the double bond of acrylic ester is introduced to the side chain of the polyurethane by utilizing a chain extender mode, and an end NCO group is sealed and protected by a sealer; and the side chain of a molecular chain of the obtained product has the double bond of an acrylic ester group, wherein the double bond is capable of ultraviolet light solidifying, and the end of a molecular main chain of the product has an unsealable sealer group. The polyurethane resin has the advantages of good storage stability and high hardness after solidification, and further improves the solidifying degree and the adhesive force of a solidifying film and is applied to the coating of workpiece shadow areas, thicker coatings and three-dimensional parts which are hard to penetrate by ultraviolet light. Because the resin coating film is subjected to triple solidification of natural drying solidification, ultraviolet solidification and unsealing-hot solidification, the resin coating film has the advantages of high solidifying degree, high hardness and high adhesive force of base materials. The product of the invention is obviously environmental friendly, and can be widely applied in fields of thick coatings of various base materials and an adhesive.

The invention discloses a high-strength environment-friendly flame-retarding fiberboard which comprises the following raw materials of plant fibers, flame retardants, adhesives and waterproofing agents, wherein the weight ratio of the plant fibers to the flame retardants to the adhesives to the waterproofing agents is 100:(3-30):(3-30):(0.1-4). The invention also discloses a manufacturing method of the high-strength environment-friendly flame-retarding fiberboard. Not only are the mechanical properties of the flame-retarding fiberboard obviously improved, but also the combustion property can conform to the regulations of GB8624 Class B or Class C, and the formaldehyde emission, the smoke volume produced and the smoke toxicity are also reduced. Thus, the high-strength environment-friendly flame-retarding fiberboard has good quality and low price, can be widely applied to the fields of building furnishings, flame-retarding furniture production, flame-retarding floor production, wooden fireproof door production, ship and vehicle furnishings and the like, and has good economical and social benefits.

The invention discloses a reactive polyurethane hot-melt adhesive for edge sealing in wood industry, which is prepared from the following raw materials in percentage by weight: 10-30% of crystalline polyester polyol, 10-30% of amorphous polyester polyol, 8-15% of high-molecular-weight thermoplastic resin, 10-25% of diisocyanate, 1-8% of plasticizer, 10-30% of inorganic filler, 0.05-0.5% of antioxidant and 0.05-0.5% of ultraviolet absorbent. In addition, the invention also discloses a preparation method of the reactive polyurethane hot-melt adhesive. The adhesive disclosed by the invention has the advantages of extremely high drying speed, excellent initial bonding strength and final strength, high heat resistance, high storage stability, excellent environment friendliness, simple preparation technique, low cost and the like. The invention can well satisfy the requirements for edge sealing in wood industry, and is beneficial to industrialization of edge sealing production in wood industry.

The invention discloses a high-speed aircraft large-area interlayer heat protection and insulation structure and a forming method thereof, belonging to the field of aerospace aircraft surface layer thermal-protection structures. The interlayer heat protection and insulation structure comprises a grid rib support layer, a heat insulation layer and an outer skin heat protection layer which are sequentially laid from bottom to top on the upper surface of a base of a metal supporting structural part, wherein the grid rib support layer is composed of an inner skin and a plurality of grids; the rib height of the grids is 10mm-12mm, and the sectional width of ribs is 2mm; the heat insulation layer is composed of an aerogel composite material laid in the grid rib support layer; the surface of the heat insulation layer is coated with an adhesive, and then an upper skin heat-protection layer is laid on the surface of the heat insulation layer. The heat protection and insulation structure is applicable to a large-area interlayer between the metal base and a surface layer material of a body of a control cabinet, a load cabinet or an instrument cabinet of a high-speed aircraft, and has the properties of ablation resistance, high-temperature airflow scouring resistance, low thermal conduction, light weight and the like, can meet long-time heat protection and insulation requirements, has good application prospect, and is beneficial to popularization and implementation.

A medium temperature curing high temperature resistant phenolic adhesive relates to an adhesive. The invention solves technical problems of phenolic high curing temperature and weak temperature tolerance of adhesive. The adhesive of the present invention consists of modified phenolic resin solution, toughening agent, curing agent, heat-resistant reinforced resin and filler. The adhesive of the invention has a low curing temperature, can be cured at 100 DEG C and obtain good adhesive strength. Curing at 100 DEG C for 6 hours, the adhesive can reach shear strength of 13.5MP and still have shear strength of 2.3MPa at 1000 DEG C. The adhesive further conducts complex reaction in high temperature usage environment and generates product with better heat resistance, thereby realizing the echelon curing and echelon temperature resistance, which are difficult for other type of high temperature resistant glue to achieve.

The invention discloses a flexible thermal-insulating decorative material for an internal wall and a producing method for the flexible thermal-insulating decorative material. The flexible thermal-insulating decorative material is composed of a flexible inner decorative layer, an adhesive layer and a flexible foamed heat-insulating layer. The invention also provides a method for producing the flexible thermal-insulating decorative material. The flexible thermal-insulating decorative material for the internal wall has the advantages of low energy consumption, good benefit, simple construction and large market, and integrates thermal insulation, damp prevention, mold prevention, sound insulation and decoration; the combination of a flexible foamed heat-insulating material and a flexible decorative material for the internal wall to form the unique decorative material for the internal wall is a great breakthrough for emission reduction and energy conservation of a wall body; and the flexible thermal-insulating decorative material for the internal wall is particularly applicable to energy-saving reconstruction of old buildings.

The invention discloses a multipurpose aqueous adhesive, which comprises the following parts: 10-35% thermoplastic rubber or emulsion, 0. 5-35% solvent, 28-45% emulsion, 20-80% viscosifying resin or its emulsion, 0. 5-5% functional adjuvant and 1-20% water. The making method comprises the following steps: putting the solvent into autoclave; stirring at middle speed and adding thermoplastic rubber and its modifying product until dissolving completely; or putting into copolymerized rubber emulsion directly; stirring to add the viscosifying resin or the viscosifying resin in the invention; blending evenly; adding emulsion; fetching the sample to test the viscosity; adding fitful quantity of water and corresponding functional adjuvant according to the purpose and viscosity; dispersing at high speed until even condition; cooling; filtering; packing; obtaining the product for shoe-making, hand pocket and decorative aspect with low cost.

The present invention discloses a phosphate adhesive and a preparation method thereof, which relate to an adhesive and a preparation method thereof. The present invention resolves the problem that the curing and heat-resisting capabilities of the prior phosphate adhesive are impaired under the room temperature. The phosphate adhesive of the present invention is prepared with phosphoric acid solution, aluminum hydroxide powder, aluminum oxide powder, zirconium oxide powder and zinc oxide powder or aluminum nitride powder. The preparation method includes the following steps: (1) the materials are weighed out; (2) the phosphoric acid solution is mixed with the aluminum hydroxide powder so that aluminum dihydrogen phosphate matrix resin can be made; (3) the aluminum oxide powder, the zirconium oxide powder and the zinc oxide powder or the aluminum nitride powder are mixed together so that curing agent is prepared; (4) the aluminum dihydrogen phosphate matrix resin and the curing agent are mixed together, and after being cured under the room temperature, the phosphate adhesive is prepared. The phosphate adhesive of the present invention can be cured under the room temperature and can resist a temperature up to 1580 DEG C, moreover, the water-resisting property of the phosphate adhesive of the present invention is good, and after the phosphate adhesive is soaked in tap water under the room temperature for 100 days, the reduction rate of the adhering strength of the phosphate adhesive is less than 10 percent.

The invention discloses a light-curing adhesive and in particular relates to an ultraviolet-curing adhesive. The light-curing adhesive comprises the following components in percentage by mass: 10%-75% of matrix resin, 5%-50% of auxiliary resin, 10%-70% of activated monomer of acrylate, allyl compound or vinyl compound, 5%-15% of adhesion accelerator, 1%-10% of photoinitiator and 0.5-10% of auxiliary agent. The light-curing adhesive provided by the invention has fast curing capability, high bonding strength and low internal stress; an obtained cured layer is soft and has excellent hydrofluoric acid resistance.

The invention discloses a pressure maintaining-free PUR hot-melt adhesive and a preparation method thereof. The pressure maintaining-free PUR hot-melt adhesive is prepared from, by weight, 0-30.0% ofpolyether polyol, 15.0-45.0% of crystalline polyester polyol, 0-20.0% of liquid non-crystalline polyester polyol, 0-20.0% of solid non-crystalline polyester polyol, 10.0-30.0% of isocyanate monomer, 0-30.0% of thermoplastic resin, 0.05-1.0% of catalyst and 0-10.0% of functional agent. Compared with the traditional PUR hot-melt adhesive, the pressure maintaining-free PUR hot-melt adhesive has excellent initial adhesive performance, good adhesive performance and good high temperature resistance performance. The pressure maintaining-free PUR hot-melt adhesive has good adhesion and working stability to common engineering plastics, such as PC, ABS and the like, common metal materials, such as stainless steel, aluminum and the like, and various types of ink.

The invention discloses an environmental-friendly urea-formaldehyde resin adhesive and a production method thereof. The production method comprises the following steps: lowering the traditional mol ratio (F/U) of the formaldehyde to urea into 0.94-1.0 from not less than 1.0; keeping the mol ratio basically unchanged after feeding the urea for the first time and the second time in the traditional process, increasing the urea amount for the third time, and adding a compound adjuvant which accounts for 0.1%-0.3% of the weight of the urea-formaldehyde resin adhesive for producing synergistic effect; in the acidic polycondensation stage, observing until a white vaporous shape appears in water at 40-45 DEG C by a muddy point method; and adjusting the pH value of a reactant into 6.5 from a traditional value of 7.5 so that the added urea for the second time can continuously participate in reaction, then observing until a white vaporous shape appears in water at 60-65 DEG C by the muddy point method for the second time, and finally ending reaction. The production method can obviously lower formaldehyde release of an artificial board and product cost of the adhesive, and ensure product quality of the urea-formaldehyde resin adhesive and physical and mechanical properties of the artificial board.

The invention discloses an energy-saving environment friendly type glue powder material of inner wall thermal insulation and heat insulation and preparing method and usage, which comprises the following steps: comprising cementing agent and light aggregate; allocating the cementing agent with 908kg-925kg building plaster, 30-40kg cement, 12-15kg adhesive, 1. 2-1. 5kg polypropylene fibre, 1. 5-2. 5kg retarders, 2-3kg water-loss reducer, 3-4kg thickener and 20-30kg coal ash; mixing; getting the cementing agent; allocating per 1000kg cementing agent with the light aggregate as 1. 3-5. 5m3 vitreous micro pearl and 5. 5-1. 3m3 polyphenyl particle; getting the product. This invention possesses stable quality and good heat-retaining property and good workability.

The powerful adhesive includes neoprene, grafting monomer, thickener, dispersant, adhesion promoter, catalyst, antioxidant, solvent, stuffing, etc. The present invention also discloses the preparation process of the adhesive, and the preparation includes introducing grafting monomer to neoprene molecule chain to raise the adhesion strength, selecting proper adhesion promoting resin to increase the initial adhesion force, and adopting mixed solvent to form high adhering performance. The adhesive has high solid content and excellent environment protecting performance, and has also excellent antiageing performance, high resistance to heat, oil, chemical and corrosion, high weather resistance, good mildew-proof performance, antibiotic performance, etc. and may be used for adhering timber, concrete, rubber, metal, gypsum board, brick and other building material.

The invention discloses a hot-melt pressure-sensitive adhesive composition which is characterized by comprising the following components in percentage by weight: 20-30% of main body polymer, 30-40% of tackifier, 30-40% of plasticizer, 1-2% of antioxidant and 1-2% of light stabilizer. The invention also provides a preparation technique of the hot-melt pressure-sensitive adhesive composition. The hot-melt pressure-sensitive adhesive disclosed by the invention has the advantages of high cohesive force, favorable initial viscosity, high binding strength and high low-temperature flexibility, has favorable initial viscosity even in winter, can be used for binding solid materials, and especially has good effect for binding polyethylene materials.

The invention discloses a bi-component polyurethane adhesive, which consists of a component A and a component B. The component A comprises the following raw materials in percentage by weight: 0-10% of monohydric alcohol, 30-90% of polyhydric alcohol, 8-60% of pigments and fillers, 1-10% of nano-filler, 0.01-1% of catalyst and 0.1-5% of silane coupling agent, wherein the sum of the raw materials is equal to 100%; the component B is isocyanate; and the weight ratio of the component A to the component B is 1-5:1. According to the bi-component polyurethane adhesive, the shelf life of the prepared bi-component polyurethane adhesive is obviously prolonged, and the curing speed is doubled.

The invention provides a copper-rare earth compound antimicrobial agent and a preparation method and an application thereof. The antimicrobial agent is compound carrier prepared by chemically-synthesized sodium zirconium phosphate and natural tourmaline according to the weight ratio of 1.2-5.7:1 and loaded by copper ions and rare earth ions by an ion exchange method, wherein the content of the copper ions is 3.4-9.0wt percent, the content of the rare earth ions is 1.5-4.5 wt percent, and the rare earth comprises La, Ce, Nd, Sm and Eu. The preparation method comprises the steps of exchanging the copper ions and the rare earth ions into the carrier through a liquid phase or solid phase ion exchange method and preparing the compound antimicrobial agent through proper post treatment. Containing three antimicrobial active centers of the copper ions, the rare earth ions and negative ions, which can generate synergistic effect, the compound antimicrobial agent has the characteristics of better thermal stability and light resistance, stable color and low cost, and can be added to materials such as plastics, rubber, fiber, coating, bonding adhesive, ceramics and the like for preparing antimicrobial functional materials and products.

The invention belongs to the field of building material adhesives, in particular relates to an external thermal-insulation dry-mixed mortar of an external wall, which is applied to adhering thermal-insulation plates on the surface of a building base wall body. The external thermal-insulation dry-mixed mortar is characterized by mainly comprising the following components in parts by weight: 25-50 parts of cement, 5-25 parts of fly ash, 45-65 parts of sand, 0.15-0.20 part of cellulose ether, 2.5-3.00 parts of subdividable gelatine powder and 0.02-0.05 part of starch ether. The preparation process of the external thermal-insulation dry-mixed mortar comprises the following steps of accurately weighing all the components in certain proportion, mixing and stirring all the components uniformly, adding water to the mixture for stirring according to the weight ratio of 100:(18-22), and then obtaining the external thermal-insulation dry-mixed mortar which can be applied to the building construction. The invention has the beneficial effects of high bonding strength, system safety, strong water preserving capability, excellent sagging resistance, excellent flexibility, frost-thawing resistance, cracking resistance and weathering resistance, low water absorption rate, small degree of shrinkage, simpleness, convenience and high-speed for construction, labor and material saving, nontoxicity, tastelessness, safety and environment protection.

The invention discloses a high elasto-plasticity waterproof caulking sealant used in outdoor and a preparation method thereof. The high elasto-plasticity waterproof caulking sealant comprises the following raw materials in parts by mass: 120-140 parts of organic solvent, 60-80 parts of base rubber, 20-40 parts of tackifier, 90-120 parts of softener, 3-5 parts of anti-aging agent, 400-500 parts of filler and 5-10 parts of thickener. The preparation method comprises the following steps: refining the base rubber into lamellas by utilizing a two-roll rubber refining machine; cutting into pieces; placing the organic solvent, the tackifier, the softener, the anti-aging agent and the rubber blocks obtained in the above step into a reactor; stirring and dissolving into adhesive cement; and placing the filler and the thickener into the reactor; stirring, vacuumizing, and discharging to obtain the finished product. The product obtained by the invention has better water resistance, weather resistance, low temperature resistance, strong adhesion, better flexibility and excellent sealing performance.

According to the present invention, a lithium ion battery outer cover material that has superior resistance to electrolytes without chromate treatment, has superior deep drawing formability and high quality, and can be produced easily is provided. The lithium ion battery outer cover material (1) of a first embodiment of the present invention has a base material layer (11), first adhesive layer (12) containing an adhesive, aluminum foil layer (13), corrosion prevention treated layer (14), second adhesive layer (15) containing an adhesive or adhesive resin, and sealant layer (16) laminated in that order. The base material layer (11) is a film base material in which the difference (α2−α1) of the elasticity (α1) to the yield point and the elasticity (α2) to the rupture point as measured according to JIS-K7127 is 100% or greater in at least one of the MD direction and TD direction.

This invention relates to a process for making dimensionally stable reconstituted composite products from lignocellulosic material. By treating lignocellulose with high pressure steam to decompose and hydrolyse the hemicellulose, cellulose and lignin fractions of the lignocellulose and using those decomposition products as both a bonding and bulking agent, it converts, under heat and pressure in a moulding operation, the treated lignocellulose into moulded composite products such as panel boards and moulded articles. The composite products thus produced possess good physical and mechanical properties. Specifically, the dimensional stability in terms of the thickness swelling and linear expansion of panel boards such as fibreboards and particleboard, can be minimized to very low levels when the panel boards are made in high density. The adhesive bond developed from thermosetting of the decomposition products of hemicellulose, cellulose and lignin is strong and stable, and resistant to boiling water and acid hydrolysis, and is free of formaldehyde emissions. Thus, the reconstituted panel boards and moulded products are suitable for exterior and particularly for indoor applications. The absence of free formaldehyde emissions makes the product very suitable for interior applications. The manufacturing cost for the reconstituted products is significantly lower in comparison to the conventional process because expensive synthetic resin is not used.

An adhesive applicator unit for a web of corrugated board comprises a frame which houses an adhesive applicator roll, and an adhesive pre-metering roll which is disposed underneath the applicator roll, and an adhesive re-metering roll which is disposed by the side of the applicator roll, each of which is rotatably drivably mounted. Formed between the adhesive pre-metering roll and the adhesive applicator roll is an adhesive pre-metering nip where pre-metering of the adhesive takes place. Between the adhesive applicator roll and the adhesive re-metering roll, provision is made for an adhesive re-metering nip where final re-metering and calibration of the adhesive film takes place.

The invention discloses a single-component moisture-curing polyurethane adhesive and a preparation method thereof. The preparation method of the adhesive is characterized by comprising the following step: by adopting an organic solvent as a solvent, performing reaction on polyether glycol and/or polyester glycol, diphenyl methane diisocyanate, polymethylene polyphenyl isocyanate and triatomic primary alcohol of which the molecular weight is less than 200 to prepare the adhesive. The average degree of functionality of an obtained high-functionality NCO-terminated prepolymer is more than or equal to 3, and the single-component moisture-curing polyurethane adhesive disclosed by the invention is suitable for splicing and tenoning (or assembling) of woods and bonding and compounding of stone materials, fireproof plates, plastic aluminum plates, bakelite plates, oak boards, some metals such as aluminum and iron, zinc-plating plates, PVC membranes and the like, is especially suitable for adhesion of rosewoods and red woods, and can meet the special requirements of some products.