63 results about "Glycol diacrylate" patented technology

The invention provides a pre-crosslinked gel granulate for profile control and polymer flooding as well as a preparation method and application of a pre-crosslinked gel granulate. The pre-crosslinked gel granulate belongs to a reagent for oil exploitation, and is obtained by polymerizing and crosslinking a composite monomer and an instable crosslinking agent under initiation of an initiator so as to obtain body gel, drying and grinding, wherein the composite monomer comprises acrylamide and acrylic acid; and the instable crosslinking agent is selected from polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, polypropylene glycol diacrylate, glycol diacrylate, trimethylolpropane triacrylate, ethoxy trihydroxymethyl triacrylate and the like. The volume of the gel granulate is expanded by absorbing water; after the gel granulates are injected into an oil deposit, big pore canals and ultrahigh pervious layers are plugged in the immediate vicinity of wellbore of an oil layer, so that the injected water enters into a low pervious layer area to start residual oil; after acting for certain time, the gel granulate is automatically hydrolyzed into a solution, so that oil-water mobility control is realized; and the gel granulate has double functions of profile control and polymer flooding, is suitable for the oil deposits of a high water holding period, and can be used for improving the recovery rate of petroleum.

The invention discloses a UV LED ultraviolet curing metal anti-fingerprint nano coating material and a preparation method thereof and a metal plate. The coating material comprises the following components in parts by weight: a 2-functional aliphatic polyurethane acrylate oligomer, 8-15 parts of a silicon modified polyurethane acrylate oligomer, 6-functional aliphatic polyurethane acrylate oligomer, ethoxylated trimethylolpropane triacrylate, propoxylate neopentylene glycol diacrylate, dipentaerythritol hexaacrylate, a photoinitiator, an active ammonia co-initiator and an auxiliary agent. According to the coating material, UV LED can be effectively used as an ultraviolet light source for rapid curing, the coating material has the characteristics of energy consumption saving, use cost reduction and environmental protection, the curing speed of the coating is high, and a formed coating film is good in performance, high in adhesive force on a metal plate and good in stain resistance, waterresistance and fingerprint resistance; and the preparation method of the coating material is simple, full dispersion and full reaction of all the components can be achieved through a dispersion machine, and industrial production is easy to achieve.

The invention discloses UV (Ultraviolet) ink, which consists of 55-60 percent by mass of UV resin, 25-30 percent by mass of dimethyltrimethylene glycol diacrylate, 7-8 percent by mass of aluminum isocaprylate and 7-8 percent by mass of a photosencitizer. The invention further discloses a method for manufacturing a local grating by using the UV ink. The method comprises the following steps of: printing twice on a printed product based on the alignment of grating lines in a screen printing way; and curing two printing results respectively through a UV photo-curing reaction to obtain the local grating. In the method, screen printing is combined with the UV ink for printing directly on the printed product, so that a process is simple, convenient and rapid.

The invention discloses a preparation method of cisatracurium besylate. The method comprises the following steps: carrying out weal base dissociation on a R-tetrahydropapaverine-N-acetyl-L-leucine salt having a chiral purity of above 99.5% as a starting material so as to obtain R-tetrahydropapaverine; then carrying out a reaction on R-tetrahydropapaverine and 1,5-pentyl glycol diacrylate so as toobtain (1R,1'R)-2,2'-(3,11-dioxo-4,10-dioxa-1,13-subtridecyl) di[1,2,3,4-tetralin-6,7-dimethoxy-1-(3,4-dimethoxyl)benzyl]isoquinoline; after carrying out oxalate refinement and weal base dissociation, carrying out a reaction on (1R,1'R)-2,2'-(3,11-dioxo-4,10-dioxa-1,13-subtridecyl) di[1,2,3,4-tetralin-6,7-dimethoxy-1-(3,4-dimethoxyl)benzyl]isoquinoline and methyl benzenesulfonate so as to prepare1R,1'R-atracurium besilate; and finally, carrying out column chromatography separation on 1R,1'R-atracurium besilate so as to obtain cisatracurium besylate. By using the preparation method, the yieldof cisatracurium besylate can reach 30%, the purity of the product reaches above 98.6%, and single impurity content is below 0.3; and the process is brief, the yield is stable, and the product quality is good, thus the preparation method disclosed by the invention has an industrial application prospect.

The invention discloses a preparation method of an inorganic nanoparticle / polymer-based composite monolithic column. The method comprises the following steps: (a) concentrated nitric acid and concentrated sulfuric acid are mixed; nano-diamond is added; a reflux reaction is carried out, and drying is carried out, such that carboxylated nano-diamond is obtained; (b) the carboxylated nano-diamond is mixed with thionyl chloride; a catalyst is added; ultrasonic treatment and a reflux reaction are carried out; centrifugation is carried out; and washing is carried out, such that acyl chlorinated nano-diamond is obtained; (c) the acyl chlorinated nano-diamond is mixed with anhydrous propenol and pyridine; a reflux reaction is carried out; centrifugation is carried out; and washing and drying are carried out, such that a polymerization monomer is obtained; (d) the polymerization monomer, glycol diacrylate, dodecanol, and benzoyl peroxide are mixed; and ultrasonic treatment is carried out; N,N-dimethylaniline is added, and the mixture is well mixed; the mixture is poured into a stainless steel column; a reaction is carried out under room temperature; a high-pressure delivery pump is connected; and flushing and drying are carried out, such that the inorganic nanoparticle / polymer-based composite monolithic column is obtained. The method has the advantages of simple process, mild reaction condition and good operability. The prepared monolithic column has uniform framework and pore size and good separation performance. The monolithic column is suitable for separating relatively complex samples.

The invention relates to a light-cured polyurethane coating and a preparation method thereof. The coating consists of two parts: light-cured isocyanuric ring polyurethane resin A and light-cured polyurethane coating B, wherein the light-cured isocyanuric ring polyurethane resin A comprises 369 parts of (2-hydroxyethyl) isocyanurate, 0.5 part of hydroquinone, 84 parts of hexamethylene diisocyanate and 0.1 part of triethylamine; and the light-cured polyurethane coating B comprises 50 parts of compound A, 50 parts of noepentyl glycol diacrylate and 2 parts of Sgacuse 184. The components are irradiated by energy rays (such as ultraviolet rays and ionizing radiation) and can be cured fast, and a coating film has good flexibility, high hardness and good processability, acid resistance, alkali resistance, solvent resistance and the like. The coating is coated with a bar material painting device or in the method of brushing, spraying and the like. The coating is coated on an ABS resin board by a No.5 bar material coating device and is irradiated by an 80W / cm medium-voltage mercury lamp for 3s, and then a high-hardness coating film is obtained. The coating is suitable for furniture made of plastics, optical instruments, stationery, auto parts, aircraft glass, various plastic or glass products with metal films, glass containers and the like.

The invention discloses a preparation method of a polycarboxylic acid grafted slump retaining agent. The preparation method comprises the following specific steps: adding glycol, acrylic acid, a catalyst, a water carrying agent and a polymerization inhibitor according to a certain ratio into a three-necked bottle, carrying out water separation, carrying out evaporation of benzene, washing, and carrying out reduced pressure distillation to obtain a cross-linking agent; adding allylpolyoxyethylene ether, maleic anhydride, a cross-linking agent ethylene glycol diacrylate and deionized water according to a certain ratio into a four-necked bottle, heating, dropwise adding 50% acrylamide solution and an initiator, carrying out thermal insulation for 0.5-1h after dropwise adding, and adjusting pH value by using 40% NaOH solution so as to obtain a yellow transparent liquid, namely the polycarboxylic acid grafted slump retaining agent with solid content being 30%. The polycarboxylic acid grafted slump retaining agent prepared by the method can endow concrete with good slump retaining performance, and compressive strength is increased with increasing of mixing amount. Meanwhile, performance of fresh concrete can be greatly improved by using the polycarboxylic acid grafted slump retaining agent along with an existing water reducer.

The invention relates to the technical field of textile materials, and particularly discloses a preparation process of an anti-wrinkle blended fabric. The process is characterized by specifically comprising the following preparation steps of S1, cotton fiber selection; S2, spinning; S3, polyester yarn selection; S4, plied yarn preparation; S5, weaving; and S6, post-treatment, wherein padding treatment is performed on a blended fabric by using an anti-wrinkle finishing liquid, and each 1L of the anti-wrinkle finishing liquid comprises the following raw materials in parts by weight of 80-100 parts of polyvinyl acetal resin, 25-45 parts of ethylene glycol diacrylate, 8-14 parts of sodium bicarbonate, 5-10 parts of triethanolamine, 12-20 parts of anhydrous magnesium chloride, 35-75 parts of acetone and 15-25 parts of an additive; and after padding, the blended fabric is dried to obtain the finished blended fabric. The blended fabric provided by the invention has excellent anti-wrinkle performance.

An inkjet recording method including applying an undercoat solution onto a transparent recording medium, semi-curing the undercoat solution, discharging an ink composition onto the semi-cured undercoat solution, and carrying out overall curing of the semi-cured undercoat solution and the ink composition by exposure under an low oxygen atmosphere after the image formation, the undercoat solution comprising two or more types of polymers and / or oligomers from among polymers and oligomers having a structure selected from the group consisting of a polyester structure, a polyurethane structure, and a chlorinated polyolefin structure, the ink composition comprising at least 95 parts of a polyfunctional ethylenically unsaturated compound relative to 100 parts of the total content of ethylenically unsaturated compound, and at least 5 parts of a polyalkylene glycol diacrylate, and exposure in the overall curing being carried out from both the image formation face and the reverse face of the recording medium.

The invention provides a pre-crosslinked gel granulate for profile control and polymer flooding as well as a preparation method and application of a pre-crosslinked gel granulate. The pre-crosslinked gel granulate belongs to a reagent for oil exploitation, and is obtained by polymerizing and crosslinking a composite monomer and an instable crosslinking agent under initiation of an initiator so as to obtain body gel, drying and grinding, wherein the composite monomer comprises acrylamide and acrylic acid; and the instable crosslinking agent is selected from polyethylene glycol diacrylate, polyethylene glycol dimethacrylate, polypropylene glycol diacrylate, glycol diacrylate, trimethylolpropane triacrylate, ethoxy trihydroxymethyl triacrylate and the like. The volume of the gel granulate is expanded by absorbing water; after the gel granulates are injected into an oil deposit, big pore canals and ultrahigh pervious layers are plugged in the immediate vicinity of wellbore of an oil layer, so that the injected water enters into a low pervious layer area to start residual oil; after acting for certain time, the gel granulate is automatically hydrolyzed into a solution, so that oil-water mobility control is realized; and the gel granulate has double functions of profile control and polymer flooding, is suitable for the oil deposits of a high water holding period, and can be used for improving the recovery rate of petroleum.