38results about How to "Meet water resistance requirements" patented technology

The invention provides an adhesive for a plywood, prepared from the following raw materials according to parts by weight: 70-80 parts of dispersion medium, 20-35 parts of degreased soyabean protein powder, 0.5-3 parts of sodium carbonate, 2-6 parts of urea, 1-2 parts of complexing agent and 1-5 parts of enhancer. The adhesive provided by the invention has the characteristics that all the components have excellent mutual synergistic effect, a materials such as a metal salt is compounded with the soybean protein, and simultaneously, glutaraldehyde is taken as the enhancer so that the problem of poor water resistence of the common soybean protein adhesive is solved; therefore, the adhesive is capable of meeting the waterproof requirement of the adhesive for the plywood and guaranteeing the practical performance of the soybean protein adhesive; and the plywood prepared by using the adhesive provided by the invention is capable of meeting the international requirements of the class II plywood. Besides, the invention also provides a method for preparing the adhesive for the plywood; and the method is simple in process, convenient for operation and suitable for popularization and application.

The invention provides a waterproof soybean meal adhesive, consisting of the following components in parts by weight: 70-80 parts of water, 0.2-1.0 part of modified nano cellulose, 20-35 parts of degreased soybean meal, and 1-10 parts of a reinforcer. The modified soybean protein adhesive for a veneer board, provided by the invention, has the main component of soybean meal, and has the advantages of being low in price, easy to treat and regenerate, and an adhered veneer board does not have a problem of formaldehyde emission, so that the problem of formaldehyde pollution in indoor air caused by artificial boards is thoroughly solved. The soybean protein adhesive provided by the invention is prepared by processing degreased soybean meal, so that soybean processing remainders are effectively utilized, resources are comprehensively utilized, the production cost is saved, and the added value of a product is improved.

The invention discloses a soybean aldehyde-free adhesive and a preparation method thereof. The soybean aldehyde-free adhesive is prepared from 27-33 parts of degreased protein powder, 1-2 parts of denaturing agent, 0.001-0.003 part of viscosity reducer, 0.5-2.0 parts of emulsifying agent, 7-20 parts of reinforcing agent and 65-73 parts of dispersion medium. The preparation method comprises the steps of dispersion, mixing, heating, stirring and the like. The soybean aldehyde-free adhesive has the advantages that the water-tolerant requirements for the adhesive for artificial boards can be met, the practical performance of the protein adhesive is ensured, and the problem of formaldehyde pollution caused by the artificial boards to indoor air is thoroughly solved; the main raw materials are renewable resources, and the adhesive is in conformity with the principle of environmental protection and sustainable development.

The invention discloses a soybean meal-based adhesive for wood and a preparation method thereof. The soybean meal-based adhesive is prepared from the following materials in parts by weight: 60-70 parts of dispersing medium, 20-35 parts of defatted soybean protein powder, 0.5-2 parts of sodium dodecyl benzene sulfonate, 1-8 parts of cross-linking reinforcing agent and 1-8 parts of sodium benzoate. The preparation method comprises the following steps: adding the defatted soybean protein powder and the sodium dodecyl benzene sulfonate to a dispersing medium; uniformly stirring, and keeping temperature at 60-80 DEG C for 3-6 hours; and then reducing the temperature of an obtained mixture to 25-35 DEG C, adding the cross-linking reinforcing agent and the sodium benzoate, and uniformly stirring. The preparation method disclosed by the invention has the advantages of simple process and convenience for operation; and the produced adhesive is free of formaldehyde, and main raw materials are derived from renewable substances, and thus safety and environmental friendliness are achieved.

The invention discloses a soybean meal-based wood-based panel adhesive and a preparation method thereof, which is prepared from 20-50 parts of defatted protein powder, 1-5 parts of a denaturant, 1-30 parts of a strengthening agent, and 60-80 parts of a dispersion medium. The method includes the steps of dispersing, mixing and stirring; the advantages of the present invention are: it can meet the water resistance requirements of the adhesive for wood-based panels, and ensure the practical performance of the protein adhesive; it completely solves the problem of formaldehyde pollution in the indoor air caused by the wood-based panels; The main raw materials are renewable resources, in line with the principles of environmental protection and sustainable development.

The invention discloses a non-formaldehyde albumin adhesive and a preparation method thereof, and relates to the technical field of artificial board adhesives. The non-formaldehyde albumin adhesive isprepared from the following raw materials: feather meal, bromelain, dispersion medium water, an activating agent, ethylene glycol diglycidyl ether and a curing agent. The non-formaldehyde albumin adhesive prepared from the raw materials is small in molecular weight, high in activity, good in solubility, capable of being self-enhanced, high in waterproof adhesion performance and high in stability;a prepared board can meet the requirement on water resistance of the artificial board adhesive; the preparation method is low in cost and easy to implement.

The invention discloses a formaldehyde-free soybean protein based adhesive and a preparation method thereof. The adhesive is prepared from soybean meal, bromelain, bean chitinase, dispersion medium water, sodium periodate, diethylenetriamine, glutaraldehyde diglycidyl ether and a curing agent. According to the formaldehyde-free soybean protein based adhesive obtained with the preparation method, soybean meal molecules are degraded, modified and recombined to form a prepolymer, proteins stretch sufficiently, molecular active groups are increased obviously, reactivity, solubility, water-retention and toughness are improved, and after addition of an elastomer-based curing agent, the prepared adhesive has high flexibility, water-resistant adhesion and stability; the requirement of an artificial board adhesive for water resistance can be met, cost of the adhesive is reduced due to reduction of use quantity of a crosslinking agent, and practicability of the protein based adhesive is guaranteed.

The invention discloses a formaldehyde-free protein adhesive and a preparation method thereof. The formaldehyde-free protein adhesive is composed of the following raw materials: degreased soybean mealprotein powder, trypsase, ficus proteinase, a dispersion medium water, sodium periodate, triethylenetetramine and ethylene glycol diglycidyl ether. A protein molecule is firstly degraded and then ismodified and recombined to obtain a pre-polymer, protein is sufficiently extended and a molecular active group is remarkably improved; the reaction activity is improved, the pre-polymer easily reactswith a crosslinking agent and the solubility and the water-retaining property are improved, so that the adhesive prepared by the preparation method provided by the invention has the advantages that the waterproof glue joint performance is high and the stability is high; and the waterproof requirements on an artificial board adhesive can be met and the dosage of a crosslinking agent is reduced, sothat the cost of the adhesive is reduced and the practical performance of the protein adhesive is ensured.

The invention discloses a soybean meal lignin-based adhesive and a preparation method thereof. The soybean meal lignin-based adhesive is prepared from 20-50 parts of defatted protein powder, 1-5 parts of a denaturant, 1-30 parts of a reinforcing agent and 60-80 parts of a dispersion medium. The preparation method comprises the steps of dispersing, mixing, stirring and the like. The soybean meal lignin-based adhesive and the preparation method thereof have the following advantages: the problems of poor water resistance, low dry cementation strength and poor boiling resistance of a common protein adhesive are solved, the water-proof requirement of an adhesive for artificial boards can be satisfied, and the practicability of the protein adhesive is guaranteed; the problem of exhaustion of synthetic fossil raw materials used in conventional artificial board adhesives can be favorably solved, and the environmental protection and sustainable development principles can be conformed; resources are comprehensively utilized, the production cost is lowered and the product added value is improved.

The invention discloses a formaldehyde-free defatted soy flour-based adhesive for a fiberboard and a preparation method of the adhesive. The formaldehyde-free defatted soy flour-based adhesive is prepared from 45-65 parts of protein substances, 0.5-5 parts of basic compounds, 0.5-5 parts of an emulsifier and 35-55 parts of a crosslinking enhancer as raw materials. The preparation method comprises the following steps of dispersing, cross-linking and carrying out spray drying. The formaldehyde-free defatted soy flour-based adhesive has the advantages that the product is high in quality and free of formaldehyde; main raw materials are derived from renewable substances, the problem of formaldehyde pollution in use of the adhesive is completely solved and meanwhile, the practical performances such as water resistance and bonding strength of the adhesive are ensured; and the preparation method is simple, convenient to operate and high in production efficiency and very long curing time is not required.

A formaldehyde-free bean pulp protein adhesive and a preparing method thereof are disclosed. The adhesive includes bean pulp powder, trypsin, bean chitinase, a dispersion medium that is water, sodiumperiodate, triethylenetetramine, glycerol triglycidyl ether and a curing agent. According to the adhesive prepared by the method, molecules of bean pulp are degraded and then modified and recombined into prepolymer so that protein is fully extended, molecular activated groups are obviously increased, and reaction activity, solubility, a water-retaining property and toughness are improved; the elastomer-based curing agent is added to allow the prepared adhesive to have high toughness, good water-proof adhesion performance and high stability; a waterproof requirement on artificial board adhesives can be met; the dosage of a crosslinking agent is reduced so that the cost of the adhesive is reduced; and practical properties of the protein adhesive are ensured.

The invention provides a soybean protein adhesive for plywood. The soybean protein adhesive is prepared from the following components in parts by weight: 70-80 parts of a dispersing medium, 20-35 parts of defatted soybean protein powder, 0.5-2 parts of a denaturant, 1-2 parts of an emulsifier, 1-5 parts of an enhancer and 0.02-0.1 part of an initiator. According to the invention, all the components of the adhesive have a good synergistic effect. The defatted soybean protein powder is subjected to denaturation treatment by adopting sodium carbonate or sodium hydroxide, and glycidyl methacrylateis used as a reinforcing agent, so that the problem that a common soybean protein adhesive is poor in water resistance and complex in process is solved, the water-resistant use requirements of an adhesive for plywood can be met, and practical performance of the soybean protein adhesive is guaranteed. In addition, plywood prepared by the adhesive provided by the invention meets the requirement oftype-II plywood in the national standard. Moreover, the invention also provides a preparation method of the adhesive for soybean protein plywood. The method is simple in process, is convenient to operate and is suitable for popularization and application.

The invention discloses soybean-meal-based wood adhesive and a preparing method thereof. The soybean-meal-based wood adhesive is prepared from 27-33 parts of degreased protein powder, 0.001-0.003 part of viscosity reducer, 0.5-2.0 part of emulgator, 1-2 parts of denaturant, 7-20 parts of enhancer and 65-73 parts of a dispersion medium. The preparing method includes the steps of dispersing, mixing, temperature rising, stirring and the like. The soybean-meal-based wood adhesive has the advantages that the waterproof requirement of the artificial board adhesive can be met, and practicability of the protein adhesive is ensured; the problem of formaldehyde pollution in indoor air due to artificial boards is solved thoroughly, the main raw materials are renewable resources, and therefore the soybean-meal-based wood adhesive meets the environmental protection and sustainable development rule.

The invention discloses a soybean formaldehyde-free adhesive and a preparation method thereof. The adhesive is prepared from 27-33 parts of degreased protein powder, 1-2 parts of denaturant, 0.5-2.0 parts of emulsifier, 5-15 parts of reinforcing agent and 65-73 parts of dispersing medium. The preparation method comprises the steps of carrying out dispersion, carrying out ultrasonic treatment, carrying out heating, carrying out stirring, and the like. The formaldehyde-free adhesive and the preparation method thereof have the advantages that the requirements of adhesives for artificial boards on water resistance can be met, and the practicability of protein adhesives is guaranteed; the problem of formaldehyde pollution to indoor air caused by the artificial boards is thoroughly solved; main raw materials are renewable resources, so that the formaldehyde-free adhesive and the preparation method thereof are in line with environmental protection and sustainable development principles.

The invention provides a high-performance connecting structure of a deformation joint of a stone curtain wall. The high-performance connecting structure comprises a stone face plate and a stone back plate, the stone back plate can be connected with curtain wall keels through connecting pieces, and the connecting pieces comprise seismic components, two adaptors and two L-shaped corner codes; the seismic components comprise connecting plates, the middles of the connecting plates are connected with the stone back plate through shaping bolts, springs are formed between the upper ends of the shaping bolts and the connecting plates, the left and right ends of the connecting plates are connected with rotating rods through bearings, and the lower ends of the rotating rods are fixedly connected with circular sliding blocks; the two adaptors correspondingly comprise two adapting frameworks, the opposite ends of the two adapting frameworks are fixedly connected with wing flange plates I correspondingly, the back ends of the two adapting frameworks are fixedly connected with wing flange plates II correspondingly, the lower ends of the two wing flange plates I are correspondingly overlapped with the left and right upper end surfaces of the stone back plate, and the upper ends of the two wing flange plates I are provided with horizontal chutes correspondingly; and one ends of the two L-shaped corner codes are fixedly connected with the wing flange plates II, and the other ends of the two L-shaped corner codes are fixedly connected with the curtain wall keels. The high-performance connecting structure integrates the functions of expansion joints, settlement joints and shockproof joints, and has high practicability.

The invention belongs to the field of organic rubber waterproof paste, and particularly relates to water-based high-elasticity organic rubber waterproof paste and a preparation method thereof. The water-based high-elasticity organic rubber waterproof paste at least comprises the following preparation raw materials: an organic emulsion and emulsified asphalt, the organic emulsion comprises at least one of benzene ring-containing emulsion, acrylic emulsion, organic silicon emulsion and neoprene emulsion. The water-based high-elasticity organic rubber waterproof paste prepared by the invention has the characteristics of high tensile strength, high elongation, self-healing property and good water resistance; the water-based high-elasticity organic rubber waterproof paste prepared by the preparation method disclosed by the invention has relatively good weather resistance and ageing resistance.

The invention relates to section paper angle protector, paper pad and relative producing method, which provides a packing material used to pack section materials. Wherein, the paper angle protector and the paper pad are made from recycled paper (vellum or newspaper or / and yellow plate), wooden slurry plate, waterproof agent, and oil-proof agent. Said producing method comprises: processing the recycled paper and wooden slurry plate, with dipping, breaking, and adding waterproof agent and oil-proof agent to prepare slurry, and via molding and vacuum slurry adsorption, to shape; molding it with molding module in high temperature and high pressure; cutting edge to attain final product. The invention uses pulp as raw material, with lower cost. And it adds waterproof agent and oil-proof agent to attain waterproof property, flexibility and better anti-drawing property. The invention can be decomposed and nontoxic. It has lower producing cost and high efficiency, while the product can be used to pack steel, wood, stone and ceramic.

The invention discloses formaldehyde-free soybean protein-based adhesive and a preparation method thereof; the formaldehyde-free soybean protein-based adhesive is prepared from 27-33 parts of skim protein powder, 1-2 parts of a modifier, 0.5-2.0 parts of an emulsifier, 7-20 parts of an enhancer, 0.001-0.003 part of a catalyst, and 65-73 parts of a dispersing medium; the preparation method comprises the steps such as dispersing, mixing, emulsifying, heating, ultrasonic treating, and stirring; the formaldehyde-free soybean protein-based adhesive and the preparation method thereof have the advantages that the requirement on water resistance of artificial board adhesives can be met, the practical performance of the adhesive is guaranteed, formaldehyde pollution problem of indoor air due to artificial boards is thoroughly solved, the main materials are recyclable, and environmental protection and sustainable development rules are satisfied.

The invention belongs to the technical field of high polymer materials, and provides a high-conductivity antibacterial formaldehyde-free adhesive, which is composed of the following raw materials in parts by weight: 12 parts of soybean protein powder, 6 parts of a cross-linking agent, 0.25-1 part of a modified reinforcing agent and 88 parts of dispersion medium water, the protein content in the soybean protein powder is greater than or equal to 90%, and the particle size is greater than 200 meshes. The modified reinforcing agent is barium titanate-coated silver nanoparticles, and the particle size of the barium titanate-coated silver nanoparticles is smaller than 300 nanometers. According to the invention, the modified core-shell structure barium titanate and silver nanoparticle reinforced and toughened soybean protein adhesive is adopted, active groups remained on the surfaces of barium titanate nanoparticles are beneficial to interaction between nanoparticles and protein, and the strength of the adhesive is improved; besides, the introduced silver ion shell layer has a certain inhibition effect on bacteria and fungi, the service life of the soybean protein adhesive can be prolonged, meanwhile, the barium titanate nanoparticles of the core layer are embedded, and the situation that the strength and toughness of the adhesive layer are reduced due to the agglomeration phenomenon is avoided.

The invention provides an external antenna head structure. The external antenna head structure comprises a main case, an antenna head bottom case, an antenna head surface case and sealing rings, wherein the sealing rings comprise a first sealing ring and a second sealing ring. The first sealing ring is located between the main case and the antenna head bottom case, so that the main case and the antenna head bottom case realize a first sealing waterproof effect. The second sealing ring is positioned between the antenna head bottom case and the antenna head surface case, so that the antenna headbottom case and the antenna head surface case realize a second sealing waterproof function. An antenna module is contained in a containing space formed by the antenna head bottom case and the antennahead face case, the second sealing ring surrounds the antenna module, a connecting wire of the antenna module is connected with a functional module located in the main case through the antenna head bottom case, and the first sealing ring surrounds the connecting wire.

The invention discloses a soybean meal lignin-based adhesive and a preparation method thereof. The soybean meal lignin-based adhesive is prepared from 20-50 parts of defatted protein powder, 1-5 parts of a denaturant, 1-30 parts of a reinforcing agent and 60-80 parts of a dispersion medium. The preparation method comprises the steps of dispersing, mixing, stirring and the like. The soybean meal lignin-based adhesive and the preparation method thereof have the following advantages: the problems of poor water resistance, low dry cementation strength and poor boiling resistance of a common protein adhesive are solved, the water-proof requirement of an adhesive for artificial boards can be satisfied, and the practicability of the protein adhesive is guaranteed; the problem of exhaustion of synthetic fossil raw materials used in conventional artificial board adhesives can be favorably solved, and the environmental protection and sustainable development principles can be conformed; resources are comprehensively utilized, the production cost is lowered and the product added value is improved.

The invention belongs to the technical field of macromolecular materials, and provides a highly conductive antibacterial formaldehyde-free adhesive, which consists of the following raw materials in parts by weight: 12 parts of soybean protein powder, 6 parts of crosslinking agent, and 0.25 parts of modified reinforcing agent 1 part, 88 parts of dispersion medium water, wherein, the protein content in soybean protein powder is greater than or equal to 90%, the particle size is greater than 200 mesh, the modified reinforcing agent is barium titanate@silver nanoparticles, barium titanate@silver nanoparticles particle size less than 300 nm. The present invention adopts the modified core-shell structure barium titanate@silver nanoparticles to strengthen and toughen the soybean protein adhesive. The strength of the adhesive; in addition, the introduced silver ion shell has a certain inhibitory effect on bacteria and fungi, which can prolong the service life of the soybean protein adhesive, and at the same time embed the barium titanate nanoparticles in the core layer to avoid Due to the agglomeration phenomenon, the strength and toughness of the adhesive layer are reduced.

The invention discloses a formaldehyde-free degreasing soy flour-based adhesive for fiberboards and a preparation method thereof. ~55 parts are prepared; the preparation method includes the steps of dispersion, cross-linking and spray drying; the advantages of the present invention are: the product is of high quality, does not contain formaldehyde, and the main raw materials are derived from renewable substances, which completely solves the formaldehyde pollution when using adhesives problems, and at the same time ensure the practical properties of the adhesive such as water resistance and bonding strength; the preparation method is simple, does not require a long curing time, is convenient to operate, and has high production efficiency.