314 results about "Pentaerythritol triacrylate" patented technology

The invention relates to vegetable oil based polyurethane acrylic ester, belonging to the field of photosensitive polymer material. The vegetable oil based polyurethane acrylic ester is characterized in that the general chemical formula is Formula I, wherein R1, R2 and R3 are respectively chosen from alkane of C1-C18, at least one of the alkane is chosen from Formula II, R4 and R5 are respectively chosen from alkane of C1-C16, R6 is diphenyl methane-4,4'-diisocyanate, or hexamethylene diisocyanate, or isophorone diisocyanate or residue of 2,4-toluene diisocyanate with two isocyanate functional group removed, and R7 is 2-hydroxyethyl acrylate, or hydroxypropyl acrylate, or residue of pentaerythritol triacrylate with hydroxy functional group removed.

The invention relates to a preparation method of an in-situ polymerization solid-state battery. The preparation method comprises the following steps: step S1, mixing electrolyte salt, an organic solvent, 1-10 percent of acrylic ester and 0.1-1 percent of an initiating agent AIBN to prepare a mixture I, wherein the acrylic ester is one of or more of isopentyl tetraacrylate, pentaerythritol triacrylate and allyl hydroxyethyl ether; step 2, weighing an active substance, acetylene black and positive pole piece made by PVDF according to the mass ratio of 6:3:1, taking a lithium sheet as a negativeelectrode, taking the mixture I as an electrolyte and taking a polypropylene thin film as a diaphragm assembly battery; step S3, putting the battery in a drying box and maintaining for 1-30 minutes after the battery is heated to 40-80 DEG C. The preparation method provided by the invention has the benefit that by adopting an in-situ heat curing technology, the interface problem between the electrolyte and a battery anode and cathode can be better solved.

Provided is a preparation method for an antifogging thin film coating with high light transmission. M-phthalic acid triethylene glycol ester-5-sodium sulfonate (self made), polyethylene glycol 400, isophorone diisocyanate and pentaerythritol triacrylate are employed as main raw materials, dibutyltin dilaurate is employed as a catalyst, dimethylolpropionic acid is employed as a chain extender, acetone is employed as a solvent, and hydrophilic UV prepolymers are prepared; ethyl orthosilicate is employed as a precursor, gamma-methacryloxy propyl trimethoxysilane is employed as a modifier, a sol-gel method is employed, and uniform and stable modified SiO2 sol is prepared; the hydrophilic UV prepolymers and the modified SiO2 sol are subjected to hybridization through a UV curing way, and a thin film coating is obtained. The prepared thin film coating has good hardness and adhesive force, water resistance and high light transmission and good antifogging effects, and can be used for antifog of surfaces of glass and eyeglass. The preparation technology of the thin film coating accords with green environmental protection concepts, curing and film forming are fast, and comprehensive performances are good. The antifogging thin film coating has good market prospect and is suitable for popularization and application.

An acrylic urethane prepolymer composition and an unsaturated polyester resin composition to which the prepolymer has been added. The prepolymer composition includes an acrylic urethane prepolymer prepared by the reaction of diisocyanate, such as MDI, with an hydroxyl-containing acrylate monomer, such as a pentaerythritol triacrylate. The prepolymer composition contains a styrene monomer and an inhibitor, such as benzoquinone, to retard the reaction of the prepolymer and styrene monomer prior to the addition of the prepolymer composition into the polyester resin composition and a photoinitiator to promote the polymerization of the resin by exposure to radiant energy. The employment of the urethane prepolymer composition provides for the reduction in the amount of styrene monomer used in the unsaturated resin composition and also provides for improved chemical and physical properties of the photocured, unsaturated resin composition.

The invention belongs to a method for preparing pentaerythritol trimethylacrylate, comprising the steps as follows: (1) pentaerythritol, acrylic acid, catalyst, solvent and polymerization inhibitor are put into a reaction kettle to be fully mixed and stirred so as to form a miscible liquid; (2) a steam valve of the reaction kettle is opened to slowly heat the miscible liquid, and the temperature is controlled and maintained at 70-90 DEG C for a 20-40min reaction; (3) the mixture is continued to be heated, when the temperature is increased to 80-115 DEG C, reflow is carried out for 3-5h and then the reaction is finished; (4) soda water solution and sodium chloride water solution are added into the mixture and after washing the upper organic phase is extracted; (5) the upper organic phase is separated from the solvent; (6) and filter pressing is carried out to obtain the end product. The method has simple process, good quality, activity and flexibility, low shrinking percentage and color intensity and high yield coefficient, and produces few by-products or little waste water.

The invention relates to an optical diffusion barrier which comprises a substrate, a diffusion layer and a back layer, wherein the diffusion layer is ultraviolet-cured on any one of the surfaces of the substrate by coating solution comprising optical diffusion particles A, resin A and photo-initiator, wherein the resin A consists of epoxy acrylate resin and urethane acrylate with 8 degrees of functionality in the weight ratio of 1:9-9:1; the back layer is ultraviolet-cured on the other surface of the substrate by coating solution comprising optical diffusion particles B, resin B, photo-initiator and antistatic agent, wherein the resin B consists of pentaerythritol triacrylate and caprolactone modified dipentaerythritol penta/hexa-acrylate in the weight ratio of 1:9-9:1; the optical diffusion particles A consist of high polymer micro-spheres in particle sizes of 10-25 microns and inorganic particles in the particle sizes of 1-4 microns, in the weight ratio of 2:1-4:1; the optical diffusion particles B are inorganic particles in the particle sizes of 2-4 microns; and the diffusion barrier has high hardness, thin coating layer and high transmittance, full diffusion performance and good antistatic property and can meet the development direction of a flat panel display in large size, thinning, light weight and low cost.

The invention relates to a water-based UV paint, particularly a high-water-resistance quick-photocuring pearlescent water-based UV paint, and a preparation method and application method thereof. The paint is prepared from a water-based polyurethane acrylate resin, a water-based epoxy acrylic resin, a functional monomer, a photoinitiator, a leveling agent, an anti-settling agent, pearl powder and a solvent, wherein the functional monomer comprises at least one of dipentaerythritol hexaacrylate, pentaerythritol triacrylate and trimethylolpropane triacrylate. The number of the functional groups of the dipentaerythritol hexaacrylate, pentaerythritol triacrylate and trimethylolpropane triacrylate is 3 or above. The photocured paint film has the advantages of high crosslinking density, excellent hardness, excellent tensile strength and excellent mechanical properties. The water-based epoxy acrylic resin is introduced on the basis of the water-based polyurethane acrylic resin, thereby enhancing the water resistance of the paint film. By introducing the pearl powder and anti-settling agent, the paint film has gorgeous pearl effects.

The invention relates to a high-temperature-resistence viscosity-reducing adhesive tape. The high-temperature-resistence viscosity-reducing adhesive tape comprises a base material membrane and high-temperature-resistence viscosity-reducing polyacrylate pressure sensitive adhesive smeared on the base material membrane; and the high-temperature-resistence viscosity-reducing adhesive tape is preparedfrom 100 parts of polyacrylate, 10 to 15 parts of multi-functional acrylate, 0.3 part of cross-linking agent and 0.1 part of initiator; and the multi-functional acrylate is any one of pentaerythritoltriacrylate or pentaerythritol tetraacrylate. The base material membrane is any one of a PET membrane or PI membrane. The polyacrylate comprising the high-temperature-resistence cross-linked functional group in the high-temperature-resistence viscosity-reducing adhesive tape is further cross-linked with the multi-functional acrylate at a high temperature, so that the stripping force is greatly reduced, and the high-temperature prepared adhesive tape is easier to strip; and the high-temperature-resistence viscosity-reducing adhesive tape disclosed by the invention is heated and used for 20 to30 minutes at 120 to 160 DEG C, the stripping force is apparently reduced, the adhesive tape is easier to strip, the adhesive residue risk is reduced, and the production efficiency is improved.

The invention discloses a water-based ultraviolet-curing printing ink and a preparation method thereof. The printing ink comprises the following raw materials by weight: 20-30 parts of epoxy acrylic resin, 10-15 parts of polyurethane acrylic resin, 5-10 parts of polyester acrylic resin, 4-6 parts of diphenyl ketone, 2-4 parts of 2,2-diethoxyacetophenone, 10-15 parts of pigments, 2-3 parts of isopropanolamine, 8-12 parts of pentaerythritol triacrylate, 15-20 parts of diacrylic acid-1,6-hexylene glycol ester, 3-5 parts of propylene glycol ethyl ether, 1-2 parts of a fluorocarbon surfactant FC-4430, 0.5-1 part of a defoamer BYK-019, 3-5 parts of a compound filler and 20-25 parts of de-ionized water. The water-based printing ink is excellent in performance, can be instantly cured after being irradiated by ultraviolet rays, is free from evaporation of a petroleum solvent, cannot pollute the environmental and is safe to use; the printing ink can be still kept stable in performance and cannot be mildewed after being stored in the printing process and even an ink fountain for a long term; a printed product is good in color stability and high in brightness, and an ink layer is higher in friction resistance, chemical resistance and adhesiveness; the printing ink has a wide application prospect.

The invention discloses a high-fire-retardant ultraviolet curing coating. The high-fire-retardant ultraviolet curing coating comprises the following raw materials: urethane acrylate, epoxy acrylate, epoxidized soybean oil acrylate, phosphorus-containing acrylate, N-vinyl pyrrolidone, polyethylene glycol acrylate, tri(propylene glycol) diacrylate, pentaerythritol triacrylate, trimethylolpropane triacrylate, benzophenone, 2-methyl-2-hydroxyl-1-phenylacetone, coumarone, nano-silica, nano aluminum hydroxide, ammonium polyphosphate, silica powder, expanded graphite, a flattening agent, a defoaming agent, a wetting agent, a dispersant and a coupling agent. The high-fire-retardant ultraviolet curing coating disclosed by the invention is good in flame retardance property, high in adhesion force, excellent in comprehensive performance and long in service life.

The invention relates to long-chain-branched polylactic acid grafted by free radicals of melt and a preparation method thereof. The long-chain-branched polylactic acid is prepared by the following components in parts by weight: 80-100 parts of polylactic acid (PLA), 0.1-0.5 part of diisopropylamine peroxide (DCP), 6-10 parts of pentaerythritol triacrylate (PETA) and 0.1-0.5 part of antioxidant. The peroxide DCP and PETA are added into PLA, and the obtained PLA is subjected to free-radical reaction of the melt to generate long branch chains, so that the crystallization property of the material is improved and the physical property of the material is also improved. The method has the advantages that the reaction time is short, the processing period can be shortened and more convenience is brought for industrial production of the PLA material.

The invention discloses an ultraviolet curable coating for low energy curing and a preparation method of the ultraviolet curable coating. The ultraviolet curable coating consists of the following raw materials in percentage by weight: 25-30% of modified polyfunctionality polyester acrylic ester, 10-15% of modified epoxy acrylate, 20-25% of modified pentaerythritol acrylic ester, 15-20% of TPGDA, 0.3-1.0% of a wetting dispersant, 10-15% of transparent talcum powder, 2-4% of a photoinitiator 1, 1-3% of a photoinitiator 2, 2-4% of a photoinitiator 3 and 0.3-0.5% of a leveling agent. The preparation method comprises the following steps: mixing the modified polyfunctionality polyester acrylic ester, modified epoxy acrylate, modified pentaerythritol acrylic ester and TPGDA, stirring to disperse, further adding the photoinitiators 1, 2 and 3 and the wetting dispersant, feeding the transparent talcum powder, and dispersing, thereby obtaining a product coating. An expected curing degree can be achieved for the ultraviolet curable coating disclosed by the invention by virtue of 40-80mj/m<2> of ultraviolet energy, so that the energy for curing a coating is greatly reduced, the construction efficiency can be improved, and the probability of quality defects on the backlight side of an irregular workpiece can be reduced.

The invention discloses a preparation method of a naringenin molecular imprinting electrochemical sensor. The preparation method is characterized in that firstly, a glassy carbon electrode is modified with a nano silver/carbon nanotube, and a nano silver/carbon nanotube modified electrode is obtained; 50%-60% of ethanol, 15%-20% of dipentaerythritol triacrylate, 4%-8% of methacrylic acid, 12%-18% of 1-vinyl-3-ethyl imidazole tetrafluoroborate, 1.0%-2.0% of azo-bis-iso-heptonitrile and 3.0%-6.0% of naringenin are added to a reactor, stirred, dissolved and stirred to react at the temperature of 65+/-2 DEG C for 12-15 h in an oxygen-free atmosphere, template molecules are removed through a methanol and acetic acid mixed solution, and naringenin molecular imprinting polymers are obtained; the naringenin molecular imprinting polymers are dispensed to the nano silver/carbon nanotube modified electrode, and the naringenin molecular imprinting electrochemical sensor is obtained. The sensor has high affinity, selectivity and sensitivity and good specificity, can realize rapid detection and can be repeatedly used.

The present invention discloses a wear-resistance and corrosion-resistance polyurethane paint, which is prepared from the raw materials such as polyurethane, silicon dioxide, titanium dioxide, asphalt, nanometer aluminum oxide, zirconium oxide, silicon nitride, talc powder, a phenolic resin, butyl methacrylate, an epoxy resin and a dispersing auxiliary agent, wherein the dispersing auxiliary agent is prepared from diatomaceous earth, jade powder, a silane coupling agent, acrylate and pentaerythritol triacrylate. According to the present invention, the paint has characteristics of extremely strong corrosion resistance, saline resistance, alkali resistance, good metal protection effect, high hardness, wear resistance, compression resistance, substantially-improved paint protection effect, strong paint stability, easy use, and easy operation.

The invention discloses high-strength impact resistance oil paint. The high-strength impact resistance oil paint is prepared from polyurethane acrylic resin, epoxy-acrylic resin, bisphenol A epoxy resin, ethylene diglycidyl ether, polyethylene glycol, 2-propenoic acid,1,1'-[(1-methyl-1,2-ethanediyl)bis[oxy(methyl-2,1-ethanediyl)]]ester, pentaerythritol triacrylate, azodiisobutyronitrile, 1-hydroxycyclohexylphenylketone, triarylsulfonium hexafluoroantimonate salt, carbon black, graphene oxide, carbon nanotubes, cresyl diphenyl phosphate, a flatting agent, an antifoaming agent, a thickening agent, a silane coupling agent, phenolic epoxy acrylate, solvent and corrosion inhibitor. The high-strength impact resistance oil paint is good in impact resistance, excellent in anti-static property, high in strength, high in adhesive force with a base material and not prone to be disengaged in the using process.

A controllable light-curable PEG solid-state topology polymer electrolyte and a preparation method thereof, A controllable light-curable PEG solid-state topology polymer electrolyte is prepared from PEO, lithium salts and star-shaped homopolymers or star-shaped block copolymers containing EO structural units, Pentaerythritol triacrylate (PETA) was synthesized by radical polymerization of PETA initiated by ultraviolet light with the addition of polyfunctional monomer pentaerythritol triacrylate. The solid electrolyte designed by the invention has good ionic conductivity, mechanical properties,electrochemical stability and thermal stability.

The invention discloses a water emulsion type polyester acrylate printing adhesive which is prepared from the following raw materials in parts by weight: 35-40 parts of polyester acrylate, 3-4 parts of peregal O, 1-2 parts of sodium dodecyl benzene sulfonate, 10-12 parts of butyl acrylate, 1-2 parts of dimethyl aminopropyl methacrylamide, 18-20 parts of methyl methacrylate, 5-6 parts of acrylic acid, 15-17 parts of dipentaerythritol hexaacrylate, 8-10 parts of propylene glycol monomethyl ether acetate, 10-12 parts of pentaerythritol triacrylate, 1-2 parts of ammonium persulfate, 4-5 parts of auxiliary and 80-90 parts of water. According to the adhesive disclosed by the invention, crosslinking modification is performed by use of the polyester acrylate, dipentaerythritol hexaacrylate, butyl acrylate and the like so that the adhesive has the advantages of strong adhesive force, high peel strength and dust prevention of polyester acrylate resin as well as the characteristics of difficulty in hydrolysis and low shrinkage rate of cured film; and the adhesive is applied to printing and is not easily stuck on a silk screen, realizes stable pattern and good fastness, and is easy to control and simple and convenient to operate.

The invention discloses floor paint formed by aqueous primer and UV finishing coat. The solid content of aqueous polyurethane in the primer is between 25 and 45 percent, and is formed by oligomer polylol and isocyanate through hydrophilic chain extender by chain extension, wherein the ligomer polylol has molecular weight of between 500 and 3,000, and is selected from tetrahydrofuran polylol, polybutanediol adipate polylol and polycaprolactone polylol; and the hydrophilic chain extender is ethylenediamine with anionic sulphonate or anionic carboxylate groups. The finishing coat uses butanone as a solvent, and contains epoxy mondified acrylic resin, trifunctional monomer, 1,6-hexanediol diacrylate, silicon dioxide powder, light initiator, active amine assistant initiator, organic fluorine foam suppressor and aluminum oxide powder, wherein a diluent monomer is selected from trimethylolpropane triacrylate, trifunctional extractant acid ester, pentaerythritol triacrylate, and propoxylated propanetriol triacrylate. The floor paint has the advantages of good wear resisting property and scraping resisting property and splitting resisting property.

The invention discloses preparation of a nano silver/carbon nano tube-modified electrode naringin molecular imprinting sensor. The preparation comprises the following steps: firstly preparing a nano silver/carbon nano tube-modified electrode by adopting a nano silver/carbon nano tube-modified glassy carbon electrode; then respectively adding 52-62 percent by weight of ethanol, 8-15 percent by weight of pentaerythritol triacrylate, 5-10 percent by weight of itaconic acid, 10-18 percent by weight of 1-propenyl-3-ethylimidazolium, 1.0-3.0 percent by weight of azodiisobutyronitrile and 4.0-10 percent by weight of naringin into a reactor, stirring at a temperature of 60+/-2 DEG C under anaerobic atmosphere for reaction for 18-24 hours and removing template molecules by adopting a methanol and acetic acid mixed solution to obtain a naringin molecular imprinting polymer; dispensing the naringin molecular imprinting polymer onto the nano silver/carbon nano tube-modified electrode to obtain the naringin molecular imprinting sensor. The sensor is high in affinity and selectivity, high in sensitivity, good in specificity, quick in detection and capable of being reused.

The invention relates to a photosensitive water developing corrosion-resistant composition and a photosensitive water developing corrosion-resistant dry film. The photosensitive water developing corrosion-resistant composition consists of acrylate, polyvinyl alcohol acrylate-benzoic anhydride half-ester, pentaerythritol triacrylate, monoanhydride half-ester, a photoinitiator, a plasticizer, an inorganic filler, a coloring agent, a tackifier, a leveling defoaming agent, a coupling agent, an emulsifying agent, a polymerization inhibitor and balance of water. As the polyvinyl alcohol acrylate-benzoic anhydride half-ester is used, the photosensitive water developing corrosion-resistant composition can provide water solubility, water developing property, high film-forming property and contact dryness and has high adhesive force when applied to circuit board etching.

The invention relates to an oxazolidinone structure-containing photocuring thermocuring resin and a preparation method thereof, and a photosensitive solder resisting material containing the resin. In the preparation process of the oxazolidinone structure-containing photocuring thermocuring resin, diisocyanate, dibutyltin dilaurate and pentaerythritol triacrylate are added into a solvent respectively, a reaction temperature is kept at 40 DEG C-70 DEG C, the concentration change of -NCO groups in the system is monitored, the reaction is stopped when the content of the -NCO groups is 48%-55% of the initial content, and a diisocyanate semi-addition product is obtained; and then epoxy resin, a catalyst and 2,6-di-tert-butyl-4-methyl phenol are added to the diisocyanate semi-addition product respectively, a reaction temperature is kept at 110 DEG C-140 DEG C, the reaction is stopped when the content of the -NCO groups in the system is 0, a 1750 cm<-1> absorption peak of carbonyl in an oxazolidinone ring structure is determined to appear in an infrared spectrogram, and thus the oxazolidinone ring-containing photocuring thermocuring resin is obtained. The photocuring thermocuring resin prepared by the method has excellent heat resistance and good adhesive force.