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122 results about "Pentaerythritol tetraacrylate" patented technology

Pentaerythritol tetraacrylate contains 350 ppm monomethyl ether hydroquinone as inhibitor CAS Number 4986-89-4. Linear Formula (H 2 C=CHCO 2 CH 2) 4 C . Molecular Weight 352.34 . MDL number MFCD00015334. PubChem Substance ID 24865554

High gloss high abrasion resistance ultra-violet curing overprinting varnish of mobile phone and preparation method thereof

The invention discloses a high gloss high abrasion resistance ultra-violet (UV) curing overprinting varnish of mobile phone and a preparation method thereof. The method of the invention uses low-viscosity polyester acrylate and aliphatic polyurethane acrylate as base resin which combines with ethoxylated pentaerythritol tetraacrylate, Trimethylolpropane triacrylate, Tri(propylene glycol) diacrylate, 1,6-hexanediol diacrylate and 2-ethylhexyl acrylate which are used as active diluent, alcohol and ethyl acetate which are used as diluent, benzophenone and 1-hydroxycyclohexyl phenyl ketone which are used as photoinitiator, reactive amine coinitiator, defoaming agent, flatting agent, slip agent and other agents to mix evenly and prepare the UV overprinting varnish. The overprinting varnish of the invention adopts the special raw material formula and has good lustrousness, adhesive force and mechanical stability; as some polyfunctional resins and resins with special functional groups are added, the crosslink density of the UV varnish is increased in the curing process and the hardness of the product is up to 5-7H; and as solid wax powder used as the slip agent is added, the coefficients of friction can be reduced and the product can have extremely high wear resistance.
Owner:苏州凯康化工科技有限公司

Cleaning production method for di-trimethylolpropane tetra-acrylic ester or pentaerythritol tetra-acrylic ester

The invention belongs to the field of photo-curing material, and relates to a cleaning production method for di-trimethylolpropane tetra-acrylic ester or pentaerythritol tetra-acrylic ester. The method specifically comprises the following steps of: (1) dehydrating di-trimethylolpropane/pentaerythritol, crylic acid, catalyst, solvent, polymerization inhibitor and antioxygen by means of esterification and backflow; (2) adding sheet alkali and a small quantity of water to neutralize; (3) adding magnesium polysilicate adsorbent to adsorb and neutralize the generated salt; (4) dehydrating in a pressure reducing way, and removing solvent; (5) carrying out filter pressing, filtering out the magnesium polysilicate and salt adsorbed by the magnesium polysilicate; (6) adding alkaline calcium bentonite and calcium oxide, to remove color, trace moisture and trace acid; (7) carrying out filter pressing; and (8) detecting the indexes of a product. The invention belongs to a cleaning production method for the di-trimethylolpropane tetra-acrylic ester or the pentaerythritol tetra-acrylic ester, which is good in economic benefit and environmental benefit, so that the problem of organic waste water pollution when the di-trimethylolpropane tetra-acrylic ester or the pentaerythritol tetra-acrylic ester is produced can be basically solved.
Owner:JIANGSU LITIAN TECH

High-temperature-resistence viscosity-reducing adhesive tape and preparation method thereof

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.
Owner:YANTAI DARBOND TECH

Phase-change energy-storage microcapsules and preparation method thereof

The invention relates to phase-change energy-storage microcapsules and a preparation method thereof; the phase-change energy-storage microcapsules are prepared from a core material, a wall material, an emulsifier, an initiator and deionized water; the core material is fatty acid ester, the wall material comprises methyl methacrylate and pentaerythritol tetraacrylate, the emulsifier is formed by mixing a nonionic surfactant and an ionic surfactant with the ratio of 1 to 1, the initiator is benzoyl peroxide, the mass ratio of the core material to the wall material is 1:1-1:4, the content of the emulsifier is 5-10% of the total mass of the core material and the wall material, the content of the initiator is 2-5% of the mass of the wall material, and the ratio of the total mass of the core material and the wall material to the mass of the deionized water is 1:4-1:6; a low-cost fatty acid ester is used as a phase change material, a mixture of the ionic surfactant and the nonionic surfactant is used as the emulsifier, a capsule wall is formed through cross-linking polymerization with combination of a suspension polymerization technology, and the phase-change microcapsules with smooth surface, uniform particles and high phase change material content are obtained.
Owner:NINGBO GREENTECH ENERGY SAVING TECH

Photocuring auxiliary direct-writing 3D printed silicone rubber ink, preparation method thereof and silicone rubber of three-dimensional structure

The invention relates to the field of photocuring elastomers, and provides photocuring auxiliary direct-writing 3D printed silicone rubber ink. The photocuring auxiliary direct-writing 3D printed silicone rubber ink is prepared from the following components in parts by weight: 70-90 parts of PDMS silicone rubber, 0.5-2 parts of a photoinitiator, 1-2 parts of trimethylolpropane triacrylate, 1-2 parts of ethoxylated pentaerythritol tetraacrylate, and 10-30 parts of photosensitive silicone rubber. The silicone rubber ink has appropriate viscosity and excellent photocuring performance, and 3D printing of the PDMS silicone rubber of the complex structure can be achieved. The invention provides a preparation method of the silicone rubber ink. The preparation method is simple in step and easy tooperate. The invention further provides silicone rubber of a three-dimensional structure. The silicone rubber ink is subjected to photocuring auxiliary direct-writing 3D printing and then subjected toheat treatment, and thus the silicone rubber of the three-dimensional structure can be obtained. The silicone rubber of the three-dimensional structure can be of any complex structure, and is high inmechanical strength, and good in elasticity and scalability performance.
Owner:烟台润创工业科技有限公司

Preparation method of pentaerythritol tetraacrylate mixture

The invention discloses a preparation method of a pentaerythritol tetraacrylate mixture and belongs to the field of chemical engineering. The preparation method comprises following processes: (1) feeding reaction materials into a reactor and mixing the reaction materials uniformly; (2) heating the reaction system to perform constant-temperature reflux to obtain reaction products; (3) cooling the reaction products and washing the reaction products, allowing the reaction products to stand for being layered and obtaining an upper-layer organic phase; (4) adding a reducing agent to the organic phase for decoloration; (5) adding a polymerization inhibitor and removing solvents in the organic phase in a manner of reduced pressure distillation and molecular distillation; and (6) adding a diluent with mixing and performing pressurized filtration to obtain a finish product. The preparation method is free of generation of harmful gases, thereby avoiding air pollution. By means of the washing process, residual acrylic acid and other impurities in the reaction system are removed. By means of the reduced pressure distillation for separating the solvents and the reaction system and the molecular distillation for removing residual solid impurities, the pure finish product is obtained. By means of usage of an anti-oxidizing agent, feeding of a protective gas and the decoloration, yield of the finish product is increased and chroma of the finish product is reduced. By means of addition of the diluent, the finished product is enhanced in stability, is improved in application performances and is wider in application range.
Owner:ANQING FEIKAI NEW MATERIAL CO LTD

Preparation method of in-situ polymerized solid electrolyte

The invention relates to the field of polymer materials, and discloses a preparation method of an in-situ polymerized solid electrolyte, which aims at the problems of shuttle effect and loss of activesubstances caused by diffusion of discharge products in the prior art. The preparation method comprises the following steps: (1) dissolving lithium bis(trifluoromethanesulfonyl)imide into a mixed solution of ethylene glycol dimethyl ether and 1,3-dioxolane; (2) dissolving pentaerythritol tetraacrylate and 2-hydroxyethyl acrylate in the electrolyte, adding azodiisobutyronitrile, and uniformly stirring the electrolyte at room temperature; and (3) assembling the polymer slurry, a sulfur positive electrode and a lithium negative electrode into a button battery, and heating the button battery to cure the polymer slurry in situ in the battery to obtain a finished product. According to the present invention, the polysulfide shuttle effect in the lithium-sulfur battery is effectively reduced, theinterface problem of the negative electrode lithium dendrites and the battery is significantly improved, and the hydroxyl-containing polymer structure unit is introduced to prepare the in-situ polymerization type multi-block polymer electrolyte, such that the solid polymer lithium-sulfur battery has excellent electrochemical performance.
Owner:HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1

Wear-resisting anti-oxidation ultraviolet light curing exterior wall coating and preparation method thereof

The invention discloses wear-resisting anti-oxidation ultraviolet light curing exterior wall coating. The wear-resisting anti-oxidation ultraviolet light curing exterior wall coating is characterized by being prepared from the following raw materials in parts by weight: 30-35 parts of polyester acrylate, 19-23 parts of amino acrylate, 13-14 parts of trimethylolpropane triacrylate, 2-3 parts of lignocellulose, 4-5 parts of light initiator 1173, 10-13 parts of pentaerythritol tetraacrylate, 5-7 parts of phenyl glycidyl ether, 4-6 parts of acetic ether, 1-2 parts of cobalt naphthenate, 1-2 parts of accelerant TMTD (tetramethyl thiuram disulfide), 1-2 parts of grape seed oil, 5-7 parts of monazite powder, 2-3 parts of chromium trioxide, 3-5 parts of magnesium silicate and 4-5 parts of addtivie. The wear-resisting anti-oxidation ultraviolet light curing exterior wall coating has the advantages that due to addition of the grape seed oil which is a natural antioxidant ingredient, the ageing-resistance performance of the coating can be improved, and the coating is safe and non-toxic; due to addition of the monazite, the hardness of a paint film is improved, and the paint film has good wear resistance; and due to addition of the additive, the coating has good leveling property, hardness and very strong adhesive force, is fast in curing speed, wear-resistant and can be used as the exterior wall coating.
Owner:江苏舜昶新型建材有限公司

Temperature-sensitive flame-retardant microcapsule, preparation method thereof, and silica gel foamed material containing temperature-sensitive flame-retardant microcapsule

The invention more specifically relates to a temperature-sensitive flame-retardant microcapsule, a preparation method thereof, and a silica gel foamed material containing the temperature-sensitive flame-retardant microcapsule. The preparation method is mainly used for solving problems in the prior art that increasing of the flame resistance of silica gel foamed materials is limited by conventionalfire retardant adding method, and material mechanical properties and physical mechanical properties are influenced. The temperature-sensitive flame-retardant microcapsule comprises a capsule wall anda core layer; the core layer is coated by the capsule wall; the core layer is a fire retardant; the capsule wall is composed of ultraviolet light cured polysiloxane, a middle and high temperature foaming agent, a surfactant, a photoinitiator, and tetramethylol methane tetraacrylate. The compatibility of the temperature-sensitive flame-retardant microcapsule with silica gel is excellent; flame resistance is achieved through release of the fire retardant in the temperature-sensitive flame-retardant microcapsule; when indoor combustion is caused, expansion of the middle and high temperature foaming agent in the capsule wall is realized, the capsule wall is broken, the fire retardant in the core material is released, so that flame retardation is realized effectively.
Owner:陕西西科守安科技有限公司
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