204results about How to "Drop point high" patented technology

Two lubricating polyurea-ester compositions with high stability and extreme-pressure antiwear performance contain proportionally basic oil, urea-based thickening agent, Ca-based thickening agent and extreme-pressure agent for composition A, or the composition A plus inorganic Ca salt for composition B.

The present invention provides composite lithium-based lubricating grease and a preparation method thereof. The composite lithium-based lubricating grease consists of thickener, base oil and additive. The thickener consists of 12-hydroxy stearic acid lithium dibasic acid and/or lithium borate, and the mol ratio is 1 ®U 0.1 to 1 ®U 0.1to 1. The base oil is mineral oil or poly-alpha-olefin synthesis oil. The additive consists of organic amine compound antioxidant, benzotriazole and barium petroleum sulfonate or barium dinonylnaphthalene sulfonate anti-corrosion additive and rust protection agent, dialkyl dithiocarbamate or dibenzyl disulfide and sulfurized olefin cottonseed oil extreme pressure antiwear additive and nanometer copper powder repairing additive. The contents of the thickener and the base oil are respectively 6 percent to 18 percent and 82 percent to 94 percent according to the weight percentage. The lubricating grease has the multi-effect performances of high dripping point, good high-temperature performance and low-temperature performance, chemical invariability, colloid invariability, antiwear extreme pressure performance etc., and especially has the repairing function towards a damaged bearing.

The invention relates to a lubricating grease, comprising 40-95 wt% of a lubricating base oil, 1-59 wt% of a composite zirconium based densifier and 1-59 wt% of octapolyurea; and the composite zirconium based densifier is a compound zirconium soap generated from reaction of higher aliphatic acid, aromatic acid, water and zirconium alkoxide. The invention also relates to a preparation method of the lubricating grease. The method comprises the following steps: subjecting the zirconium alkoxide, higher aliphatic acid and aromatic acid to a first contact reaction in lubricating base oil at 60-120 DEG C; then subjecting the mixture obtained from the first contact reaction and water to a second contact reaction at 85-100 DEG C, and heating the products obtained from the second contact reaction for dehydration; and introducing the octapolyurea into the obtained reaction products. The lubricating grease provided by the invention has high drop point, excellent colloidal stability, and excellent extreme pressure wear resistance and ball bearing lubrication life.

The invention relates to steel rope grease with high dropping point and a preparation method of the steel rope grease. The steel rope grease with high dropping point comprises the following compositions in percentage by weight: 65%-85% of base oil, 5%-20% of thickening agent, 2%-15% of adhesion agent, 1%-6% of rust inhibitor, 0-5% of antioxidant, 0-5% of polar additive and 0.5%-6% of solid lubricant. According to the steel rope grease, the dropping point of the steel rope grease is high (no less than 100 DEG C), the adhesion property is good (a slump test is qualified), the low temperature performance is good, superior adhesion property and oil film forming capacity are realized, and comprehensive performances such as waterproofing, corrosion resistance, oxidation resistance and wear resistance are also realized; and high-quality steel rope grease products required by the imported steel rope products can be partially replaced by the steel rope grease, so that the production cost is reduced for enterprises, the lubrication and corrosion resistant problems of the steel rope can be relieved, and the service life of the steel rope can be greatly prolonged.

The invention relates to a lubricating grease, comprising 40-95 wt% of a lubricating base oil, 1-59 wt% of a composite zirconium based densifier and 1-59 wt% of bipolyurea; and the composite zirconium based densifier is a compound zirconium soap generated from reaction of higher aliphatic acid, aromatic acid, water and zirconium alkoxide. The invention also relates to a preparation method of the lubricating grease. The method comprises the following steps: subjecting the zirconium alkoxide, higher aliphatic acid and aromatic acid to a first contact reaction in lubricating base oil at 60-120 DEG C; then subjecting the mixture obtained from the first contact reaction and water to a second contact reaction at 85-100 DEG C, and heating the products obtained from the second contact reaction for dehydration; and introducing the bipolyurea into the obtained reaction products. The lubricating grease provided by the invention has high drop point, excellent colloidal stability, and excellent extreme pressure wear resistance and ball bearing lubrication life.

The invention provides composite lithium grease and a preparation method thereof. The composite lithium grease comprises the following components by weight percent: 4-10 percent of hydroxyl fatty acid of C12-C14, 1-4 percent of dibasic acid of C4-C18, 1-4 percent of lithium hydroxide, 0.1-1 percent of organic amine antioxidant, 0.3-1 percent of anti-corrosion rust inhibitor, 1-5 percent of antiwear extreme pressure additive and the balance of base oil. The preparation method comprises the following steps of mixing the base oil with the hydroxyl fatty acid of C12-C14and the dibasic acid of C40C18, heating the mixture to 80-115 DEG C, and adding lithium hydroxide monohydrate aqueous solution to perform saponification reaction, then carrying out dehydration, raising the temperature to 130-180 DEG C to carry out constant-temperature refining, raising the temperature to 200-220 DEG C to carry out highest temperature refining, adding the residual base oil and the additives, cooling and grinding to obtain the composite lithium grease. The composite lithium grease has the advantages of high dropping point, favorable high temperature performance, mechanical stability, antiwear and extreme pressure property, corrosion and rust resistance, and the like.

The invention relates to a composite calcium sulfonate lubricating grease composition and a preparation method thereof. The composite calcium sulfonate lubricating grease composition is prepared from the following raw materials in percentage by weight: 18 to 44 percent of high-base-number calcium sulfonate, 0.3 to 3 percent of glacial acetic acid, 3 to 8 percent of water for conversion, 1 to 4 percent of alkyl benzene sulfonic acid, 0.1 to 3 percent of calcium carbonate, 1 to 5 percent of fatty acid, 1 to 5 percent of a boric acid solution counted by using boric acid, 1 to 4 percent of a calcium hydroxide solution counted by using calcium hydroxide and the balance of base oil. The composite calcium sulfonate lubricating grease composition has the advantages of high dropping point, good extreme pressure antiwear property, excellent colloid stability and mechanical stability, and has a wide application range. The invention further relates to the preparation method for the composite calcium sulfonate lubricating grease composition.

The invention discloses an environment-friend lubricating grease and making method, which comprises the following parts: 15-95% basic oil, 5-85% thickener, 0. 01-5% additive. The making method comprises the following steps: 1. blending the basic oil and thickener; stirring; heating until the thickener is dissolved in the basic oil; insulating 0-8h; 2. heating the composition; stirring; insulating 0-5min; 3. cooling the composition; adding the additive; grinding or cutting. The invention improves the awl-in degree, dripping point, oxidizing stability and environment friendness, which simplifies the technique.

A filling grease for composite fibre-optical overhead earth wire is prepared by mixing 36®|hydrogenated white oil and PAO-8 synthesized oil with PriCO-3002 polybasic alcohol ester and viscosity exponential improver Lc-212, adding into additive OB fluorescent brightening agent, grease-separating inhibitor BP2400 and G1702, raising temperature, stirring, adding into organic thickening agent gas-phase carbon white H20, raising temperature, thickening, adding into antioxidant AT-215 and inorganic thickening agent SEP1650, raising temperature, thickening, shearing, circulation feeding back, cooling to normal temperature, homogenizing, degassing, filtering and obtaining the grease. It achieves good hydrogen absorption and stable fibre-optical transmitting performance.

The invention relates to a special lubricant named as HP800 Special Lubricant which is used for the open gear and support roller that are oiled by injection method. The lubricant takes composite calcium sulphonate and composite aluminium as the thickener; the base oil of the lubricant is synthetic oil; and in addition tackifier, extreme pressure agent and antioxidant are also added in. Wherein the weight-portion of each component are: the base oil: 50-64, the thickener: 20, the tackifier :5-10, the extreme pressure agent: 10-25,and the antioxidant: 1. The invention is suitable for lubrication of the open gear, the support roller of all kinds of umbrella ball mill, mixer, rotary kiln, imported umbrella excavator, crusher, and coal grinding machine; and has very high extreme-pressure performance, excellent viscosity and protection performance, thereby the invention can substitute import products of the same kind and has the advantages of thick oil-film, non-oil-swinging and environmental-protection.

The invention provides a preparation process for high drop point ureido grease, wherein, the base oil, the solid additive powder, the organic amine and the diisocyanate are mixed between 50 DEG C and 100 DEG C to react, then added with the quench oil when the temperature rises between 160 DEG C and 220 DEG C and is then cooled to be taken out of a kettle. The grease obtained by the invention is taken as one hundred percent of total weight and comprises the following compositions: the weight of the base oil accounts for 70 to 90 percent, the ureido thickening agent produced by the reaction of the organic amine and the diisocyanate has a weight accounting for 5 to 25 percent, and the weight of the solid additive powder accounts for 0.1 to 10 percent. The grease obtained by the process has a drop point which is more than 330 DEG C and has good extreme pressure anti-abrasion performance as well as corrosion resistance performance.

The invention relates to a high-temperature grease and a preparation method thereof, which are widely applied to equipment bearings of production lines in steel mills and steel works. The high-temperature grease contains the following components in weight parts: 45 to 81.5 parts of high-viscosity mineral oil, 4 to 10 parts of polyurea, 10 to 30 parts of high-base number calcium petrolem sulfonate, 1 to 3 parts of transforming agent, 1 to 3 parts of anti-rust agent, 1 to 3 parts of extreme-pressure additive, 0.5 to 1 part of antioxidant, and 1 to 5 parts of thickening agent. The high-viscosity mineral oil is 150BS. The high-temperature grease has higher dropping point, does not turn thin or has lower thinning degree after meeting water; the antirust performance is as good as the new grease after meeting water; and the extreme-pressure performance thereof is reduced by a lower degree or does not reduce after meeting water.

A grease composition with a thickener of a calcium sulfonate complex and a second thickener component in a base oil. The second thickener component may be, for instance, polyurea, a metallic soap, a complex metallic soap or an N-substituted terephthalamic acid metal salt. Alternatively, a grease composition with a thickener of an N-substituted terephthalamic acid metal salt and a second thickener component in a base oil. Furthermore, a grease composition with a thickener component of polyurea and complex metallic soap in an ester oil. Still further, a grease composition with a thickener of polyurea and a complex metallic soap in a base oil.

The invention provides composite lithium-calcium-based lubricating grease and a preparation method. The composite lithium-calcium-based lubricating grease consists of lubricating grease base oil, a composite lithium-calcium-based thickener and a surfactant in a mass part ratio of (449-1,722): (69.6-304.8): (2-10), wherein the lubricating grease base oil is at least one of vacuum cut 2 base oil, vacuum cut 3 base oil and vacuum cut 4 base oil; and the composite lithium-calcium-based thickener is a composite thickener consisting of calcium C12 to C24 fatty acid salt, a lithium C2 to C12 fatty diacid salt and lithium borate in mass part ratio of (53.2-238.6):(13.2-53.2):(3.2-13). The invention also provides a method for preparing the composite lithium-calcium-based lubricating grease. The surfactant is added into the composite lithium-calcium-based lubricating grease to produce a synergistic effect with soap molecules for improving the arrangement mode base oil immobilizing capacity of the soap molecules, and thus the dropping point of the lubricating grease is improved.

The invention discloses composite sodium-based lubricating grease and a preparation method thereof. By the weight of the lubricating grease, the compound sodium-based lubricating grease comprises the following components: 65-95% of lubricating base oil, 5-30% of a composite sodium-based thickener and 0.2-15% of graphene. The composite sodium-based lubricating grease disclosed by the invention has excellent properties such as high temperature resistance, water resistance, adhesivity, colloid stability, extreme pressure antiwear property, long lubricating life, corrosion resistance and salt fog resistance.

The invention relates to the technical field of chemical industry and particularly relates to a flame-retardant waterproof ointment incompatible with a flame-retardant sheath material and used for filling a cable. The waterproof ointment is characterized by comprising the following raw material components in percentage by weight: 65-75% of base oil, 4-8% of oil stabilizer, 1-2% of antioxidant, 3-8% of thickener, 3-8% of fire retardant, 3-15% of waterproofing agent and 5-10% of absorptive particles. Compared with the prior art, the flame-retardant waterproof ointment has the following advantages: the quality guarantee period of products is greatly prolonged, the initial water absorption speed is greatly quickened, the initial expansion speed is quicker; the dropping point of the products is higher, the cone penetration is greater, and the thixotropic property is better; and a photoelectric cable made from the flame-retardant waterproof ointment is longer in service life.

A calcium complex grease composition is disclosed. The grease composition has a high dropping point and a suitable thickness and is stable to heat.

The invention relates to lubricating grease and a preparation method thereof, particularly relates to water-resistant extreme pressure lithium lubricating grease and a preparation method thereof, and belongs to the technical field of chemical engineering. The water-resistant extreme pressure lithium lubricating grease comprises the following components by weight percent: 70-90% of base oil, 9-15% of fatty acid, 1-2% of lithium hydrate, 0.3-0.7% of calcium hydroxide powder, 0.1-0.5% of antioxidant, 0.3-1.5% of antirust agent, 2-5% of extreme pressure agent and 2-5% of tackifier. The water-resistant extreme pressure lithium lubricating grease has the beneficial effects that the condition that the water-resistant extreme pressure lithium lubricating grease product has a high dropping point and good shear stability under a general condition is ensured; the product has excellent water-resistance, so that less loss in washing of a lot of water is ensured; the water-resistant extreme pressure lithium lubricating grease can work in the presence of water, is not easily softened to run off, and is good in mechanical stability; the product has excellent anti-rust property and extreme pressure anti-wear property; excellent lubrication of heavy duty equipment under a humid condition can be improved; the lubricating surface is prevented from being rusted.

The invention relates to hydrogen absorption fiber paste for an optical fiber composite overhead ground wire (OPGW) optical cable. The hydrogen absorption fiber paste comprises, by weight, 75-85% of base oil, 6-10% of gelatinizing agent, 0.3-0.6% of antioxidant, 0.8-1% of viscosity index improver, 1.5-2% of oil distribution inhibitor and 2-5% of hydrogen absorption agent. The base oil is polyalpha-olefin synthesis oil, and the gelatinizing agent is a composite of an organic gelatinizing agent and an inorganic gelatinizing agent. The hydrogen absorption fiber paste has the advantages of adopting the polyalpha-olefin synthesis oil as the base oil so as to enable the fiber paste to have good high-low-temperature performance; improving the stability of a glue body by adding an appropriate amount of silicon-containing (inorganic) glue body into a silicon-free (organic) glue body; having good hydrogen absorption performance by adding an efficient hydrogen absorption agent, removing hydrogen caused by incompatibility of the fiber paste and stainless steel and caused in welding process, reducing defects in optical fiber lattice and loss of optical fiber, and improving transmission performance of the optical fiber.

The invention discloses a corrosion-resistant zero-shrinkage flame-retardant cable material, which is characterized by comprising the following components in parts by weight: 30-40 parts of chlorosulfonated polyethylene rubber; 30 to 40 parts of poly ethylene-propylene methylene rubber; 15-20 parts of polybenzoxazine; 10-15 parts of hydroxyl epoxidized polybutadiene; 12 to 18 parts of a modified graphene oxide- polypyrrole compound; 5-10 parts of polyurea grease; 6-10 parts of a polymer initiator; 5-8 parts of a nano polyelectrolyte layer embedding corrosion inhibitor; 6-9 parts of sisal cellulose; 3-5 parts of reinforced nano microspheres and 3-5 parts of a flame retardant. The cable material has the characteristics of good heat resistance and corrosion resistance, high antistatic performance and high flame retardance with zero deformation, reduces the risk of arc effect and short-circuit fire caused by the cable material, prolongs the service life, and improves the insulation safetyperformance.