33results about How to "High initial adhesion" patented technology

The invention provides a water-soluble adhesive and a preparation method thereof. The water-soluble adhesive is prepared mainly by natural latex, soft water, a vulcanizing agent, a vulcanization accelerator, a vulcanizing activator, a dispersant, anhydride casein, borax, a stabilizer, a wetting agent, ammonia and potassium hydroxide. In order to improve the performance of the water-soluble adhesive, carboxymethyl cellulose sodium, the wetting agent, an age inhibitor, an antifoaming agent and a mildew inhibitor also can be added; the obtained water-soluble adhesive is an environment-friendly material which is used for shoes, has the processing advantages of low energy consumption, non-toxicity, good processing property, simple operation and the like in the preparation process, strengthens self deterioration resistance, greatly prolongs the storage stabilization period of slurry, improves the intrinsic performance of the adhesive, and fundamentally realizes the demand of high adhesive strength on rubber shoes.

The invention discloses a spraying-type environment-friendly rubber adhesive cement and a preparation method of the rubber adhesive cement. The spraying-type environment-friendly rubber adhesive cement comprises the following components by weight parts: natural emulsion containing 62.5% of dry glue content, O-type peregal, soft water, and compounding agent aqueous dispersion, wherein the compounding agent aqueous dispersion comprises sulphur, an accelerant DM (2,2'-dibenzothiazoledisulfde), an accelerant TMTD (tetramethyl thiuram disulfide), active zinc oxide, anti-aging agent CD, anti-aging agent 4010NA, mildew preventive BCM, dispersing agent NNO, potassium hydroxide, casein and soft water. By using the natural emulsion as the main material and due to the fact that the original condition of the molecules of the natural emulsion are kept basically, the high initial bonding property of the environment-friendly rubber adhesive cement is ensured; the vulcanized and cross linked adhesive cement and the bonded rubber component form a strong unity, so that the product has a high final bonding property. The manufacturing process disclosed by the invention has the advantages of low energy consumption, no toxic, excellent processing property, simple operation, and the like. In addition, the deterioration resistance of the binder is enhanced, the storage stationary phase of the cement is prolonged greatly, and the internal property of the binder is improved.

The invention relates to coating for solar cell back plates. The coating comprises, by mass percentage, 9.2-14.4% of fluorocarbon resin, 3.6-9.2% of acrylic resin, 20.5-25.3% of pigment, 37.6-48.1% ofsolvent, 0.6-1% of auxiliaries and an isocyanate curing agent, wherein the mole ratio of hydroxyl in the fluorocarbon resin and the acrylic resin to the isocyanate in the curing agent is 0.8-1.6, andthe total mass percentage of the components is 100%. The coating has the advantages that the coating is good in interlayer performance, a coating layer after hydrothermal aging is good in bonding force with EVA, and the problem that fluorocoating cannot give consideration to both weather resistance and cohesiveness is solved.

The specification discloses a bimetallic composite plate material and a manufacturing process thereof; the bimetallic composite plate material comprises a surface layer metal and a bottom layer metal; a polyurethane adhesive layer is disposed between the surface layer metal and the bottom layer metal. The manufacturing process of the bimetallic composite plate material comprises the following steps: a. uniformly coating a polyurethane adhesive between the surface layer metal and the bottom layer metal; b. superposing the surface layer metal and the bottom layer metal; c. coating a protection film on the surface layer metal; d. performing normal temperature rolling compounding or heating rolling compounding of the surface layer metal and the bottom layer metal; e. shearing the plate; f. curing at a medium or low temperature.

In order to solve the problems of fixed thickness and unsatisfactory reinforcing effect of conventional automobile reinforcing rubber sheets, the invention provides a high-foaming reinforcing rubber sheet. The reinforcing rubber sheet is composed of the following substances in parts by mass: 1-10 parts of carboxyl-terminated liquid nitrile rubber, 5-50 parts of calcium carbonate, 10-40 parts of hydantoin epoxy resin, 1-5 parts of a foaming agent, 5-20 parts of dibutyl phthalate, 0.1-1 part of a peroxide vulcanizing agent and 1-10 parts of a curing agent. The reinforcing rubber sheet of the invention has the advantages that the reinforcing rubber sheet is lighter and is beneficial for promoting lightweighting of an automobile; the strength of the reinforcing rubber sheet can be improved through microcellular foaming, and under a foaming condition, reinforcing multiplying power can also reach 5-6 times; meanwhile, due to the existence of a mesoporous structure, damping effect is better,the stress of the reinforcing rubber sheet during epoxy curing can be dispersed due to the existence of micropores; the reinforcing rubber sheet has better conformability during application, and doesnot causes deformation of a steel plate.

The invention discloses a water-borne rubber cement for cotton canvas rubber shoe foxing bonding and a preparation method thereof. A combination of natural latex and pyridine-styrene-butadiene rubberlatex is adopted as the host material, a vulcanized and cross-linked adhesive, a bonded part and cotton canvas fiber form a high strength and uniform adherend, and the final bonding strength is high.The rubber cement has long-lasting surface stickiness, has low temperature requirement for the bonded part, and lowers the requirement of the bonded rubber material for thermal insulation performance.The three major quality problems of cotton canvas rubber shoes, i.e. lace delamination, base fabric disengaging and undersole delamination are effectively solved, and the quality defect of glue failure during use of cotton canvas rubber shoes can be thoroughly eliminated.

The invention discloses a single-component high-heat-resistance vacuum forming adhesive and a preparation method thereof. The vacuum forming adhesive comprises the following components in parts by weight: 20 to 50 parts of a VAE emulsion, 40 to 60 parts of a PUD emulsion, 2 to 10 parts of a modified VAE emulsion, 5 to 8 parts of waterborne blocked isocyanate, 2 to 5 parts of polycarbodiimide resin, 0 to 0.1 part of a pH regulator, 0.1 to 0.2 part of a defoaming agent, 0.1 to 0.2 part of a dispersing agent and 0.3 to 0.5 part of a thickening agent. The vacuum forming adhesive can be used and stored in a single-component manner, has no active period limitation and is convenient to operate; after closed isocyanate is heated, activated and unsealed, a final product has heat resistance of 80 DEG C, which exceeds the heat resistance temperature of a double-component vacuum forming adhesive. The activation temperature of the single-component high-heat-resistance vacuum forming adhesive is about 55 DEG C, so heating and cooling discharging time of a workpiece is saved in practical application, and working hours are reduced. The single-component high-heat-resistance vacuum forming adhesiveis small in particle size, good in atomization effect and good in the surface effect of formed highlight PVC.

The invention discloses a novel water-based adhesive for polyester filament canvas shoes and a preparation method thereof. A combined body of natural latex and an environment-friendly adhesive is usedas a main body material, and molecules of the latex are basically kept in the original shape, so that the higher initial adhesion capacity of the novel water-based adhesive for the polyester filamentcanvas shoes is ensured; asthe rubber polymer does not change, the vulcanized and cross-linked adhesive and an adhered adhesive part form a high-strength unified body and have relatively high final adhesion strength, so that the requirement on the surface viscosity of the adhered adhesive part is not high, the requirement on the temperature of the adhered adhesive part is low, and the requirementof an adhered adhesive material on the thermal insulation property is reduced. Due to the fact that the initial bonding force and affinity with the adhered adhesive part are improved, plastic flowingof molecules on the bonding surface of the adhesive part in the initial stage of high-temperature vulcanization is prevented, the adhesive part and the upper are firmly bonded together through the adhesive, and therefore the three quality problems of lace delaminating, base cloth disengaging and outsole elastic edges of the rubber shoes are effectively solved.

The invention provides a heat-vulcanized water-soluble adhesive of unvulcanized rubber and vulcanized rubber and a preparation method of the heat-vulcanized water-soluble adhesive. The heat-vulcanizedwater-soluble adhesive is mainly prepared from natural latex, soft water, a vulcanizing agent, a vulcanization accelerator, nano zinc oxide, a dispersing agent, anhydride casein, borax, a stabilizer,ammonia water and potassium hydroxide. In order to improve the performance of the heat-vulcanized water-soluble adhesive of the unvulcanized rubber and the vulcanized rubber, sodium carboxymethyl cellulose, an anti-aging agent, a defoaming agent and a mildew preventive can also be added, and the obtained heat-vulcanized water-soluble adhesive of the unvulcanized rubber and the vulcanized rubber is an environment-friendly bonding material for shoes. The adhesive has the processing advantages of low energy consumption, no toxicity, excellent process performance, simplicity in operation and thelike in the manufacturing process; the deterioration resistance of the adhesive is enhanced; the storage stable period of slurry is greatly prolonged; the internal performance of the adhesive is improved; the requirements of rubber shoe foxing strips on high adhesive strength of the secondary vulcanized soles of rubber shoes are fundamentally met; the technical problem of bonding adhesive removalis solved, and potential safety hazards of spontaneous combustion in a rubber shoe manufacturing process are eliminated.

The invention discloses a cobalt-containing composite coating for a steel cord and a preparation method of the cobalt-containing composite coating. The specific preparation method comprises the following steps that 1, a coating production technology principal conducts preparation scheme review and puts forward questions and answers, technicians compile special preparation schemes and pay attention to details, and technical disclosure is conducted to workers; secondly, a sand bag grinding tool is used for conducting overall rough grinding and surface accurate grinding treatment on the steel cord steel wire base body; thirdly, the steel cord steel wire base body is cut into sections through a hydraulic clamp; polishing scum on the surface is purged through high-pressure gas; according to the cobalt-containing composite coating for the steel cord and the preparation method of the cobalt-containing composite coating, rare earth is added, the coating structure is refined, and the atomic activity is improved; the initial bonding performance of the Cu-Zn-Co coating and rubber is improved, meanwhile, more excellent aging bonding performance and damp-heat aging bonding performance can be achieved, and the possibility of industrial application of the cobalt-free sizing material is increased.

The invention discloses a rare earth-containing Cu-Zn-Co steel cord coating and a preparation method thereof. The preparation method specifically comprises the following steps: step 1, paying off a smooth steel wire; 2, pickling the steel wire with diluted hydrochloric acid, wherein the concentration of the hydrochloric acid is 150 +/-50g/L; thirdly, the steel wire treated in the second step is washed and dried; fourthly, the steel wire treated in the third step is subjected to copper electroplating through a copper plating tank and cobalt electroplating through a cobalt plating tank, and a plating solution contains a rare earth additive; fifthly, Zn powder is sprayed on the surface of the steel wire obtained in the fourth step through a plasma spray gun; sixthly, the steel wire obtained in the fifth step passes through an intermediate frequency furnace, so that coating metal is diffused, and the steel wire containing the rare earth Cu-Zn-Co coating is obtained; according to the rare earth-containing Cu-Zn-Co steel cord coating and the preparation method thereof, rare earth is added, the coating structure is refined, the initial bonding performance of the coating and rubber is improved, meanwhile, the coating can have more excellent damp-heat aging bonding performance, the use of Co elements in rubber products can be reduced, rubber cracking and aging are retarded, and the durability of rubber is improved.