10 results about "Polyethyleneglycol dimethacrylate" patented technology

Disclosed in the present invention are an acrylate emulsion for a polymer cement waterproof coating, a raw material composition thereof, a preparation method therefor, and a use thereof. The raw material composition comprises the following components in parts by weight: 3-4.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.5-2.5 parts of acrylamide, 2-4 parts of fatty alcohol polyoxyethylene ether, 2-4 parts of polyethylene glycol dimethacrylate, 1-2 parts of acrylic acid, 0.5-1 part of titanium triisostearoylisopropoxide, 40-60 parts of acrylate, 0.5-1 part of sodium persulfate, 50-60 parts of deionized water, and 0.1-0.3 parts of a 10% sodium hydroxide solution. The acrylate emulsion prepared by the present invention has excellent performance and good dispersibility, and a polymer cement waterproof coating prepared by using the emulsion of the present invention has lower viscosity and better workability.

The application discloses a bismaleimide-polyether amine photosensitive resin composition and application thereof in 3D printing. The bismaleimide-polyether amine photosensitive resin composition is composed of 5-50% bismaleimide-polyether amine resin, 5-50% polyurethane acrylic resin, 0-30% polyethylene glycol dimethacrylate resin, 0-30% alkoxylated acrylate, 0-25% diluent, 0.1-10% photoinitiator, 0.1-5% defoamer, 0-5% leveling agent and 0-5% antioxidant. The photosensitive resin composition is simple to prepare and low in cost, can be used in 405nm light curing 3D printing technology, introduces polyether amine segments into bismaleimide segments while ensuring good rheological viscosity performance, the photosensitive resin composition has good low-temperature resistance, and greatly expands the application range of liquid crystal photosensitive resin 3D printing products.

This invention relates to the field of polyester materials technology, specifically to a method for preparing a high-toughness polyester material and its application in a water cup. The method comprises the following raw materials in parts by weight: 100 parts polybutylene terephthalate (PBT), 4-6 parts filler, 0.2-0.4 parts compatibility agent, and 0.1-0.3 parts antioxidant. In this invention, PBT acts as a toughening material, combining with sugarcane extract to form an energy absorption network, enhancing the polyester material's resistance to deformation. The double bonds of polyethylene glycol dimethacrylate (PEG-DMA) react with the double bonds of PBT and the hydroxyl groups of polycaprolactone diol to form chemical cross-linking points, bridging the various materials and enhancing the interfacial compatibility of the materials. This allows stress to be uniformly transferred from the matrix to the filler when the material is subjected to external force, preventing fracture caused by excessive local stress, thereby improving the toughness of the polyester water cup.

The present invention provides a silicone hydrogel mixture and a wettable silicone hydrogel lens formed therefrom. The silicone hydrogel mixture comprises a polysiloxane macromolecule, a hydrophilic polymer, and a hydrophilic non-polysiloxane cross-linking agent, wherein the hydrophilic non-polysiloxane cross-linking agent is polyethylene glycol dimethacrylate (PEGDMA) having the following structural formula represented by formula (A): wherein R1 and R2 are CH3, or R1 and R2 are H, and n is an integer from 4 to 42.

Disclosed herein is a dental composite with controlled debonding capability using heat and electric field. The dental composite includes a resin matrix phase, inorganic fillers, thermo-electric responsive agents, an initiator system, and coupling agents. The resin matrix phase includes an amount of bisphenol A-glycidyl methacrylate (Bis-GMA), an amount of triethylene glycol dimethacrylate (TEGDMA), and an amount of polyethylene glycol dimethacrylate (PEGDMA). The inorganic fillers include an amount of silane-modified silica particles and an amount of barium titanate (BaTiO₃). Thermo-electric responsive agents include an amount of doped polyaniline and an amount of polypyrrole. The initiator system includes an amount of benzoyl peroxide and an amount of camphorquinone. The coupling agents include an amount of γ- Methacryloxypropyltrimethoxysilane.

The application discloses a PVDF solid-state polymer electrolyte with an interpenetrating crosslinked network structure and a preparation method and application thereof, relates to the technical field of solid-state polymer electrolytes, and discloses the PVDF solid-state polymer electrolyte with the interpenetrating crosslinked network structure, which comprises a first network and a second network. The first network comprises a crosslinked framework formed by copolymerization of PVDF, a lithium salt, polyethylene glycol dimethacrylate and ethylene glycol methyl ether acrylate. The second network comprises a network structure formed by in-situ polymerization of ethylene carbonate and fluoroethylene carbonate. The second network and the first network are interpenetrated and wound. The application constructs a bicontinuous phase structure formed by interpenetration of a PVDF-based crosslinked framework and in-situ polymerization networks of ethylene carbonate and fluoroethylene carbonate, so as to reduce the crystallinity of PVDF, construct a continuous lithium ion transmission channel, improve the room temperature ionic conductivity, and improve the electrode interface compatibility.

A silicone hydrogel mixture and a wettable silicone hydrogel lens formed therefrom are provided. [Solution] The silicone hydrogel mixture comprises a polysiloxane polymer, a hydrophilic polymer, and a hydrophilic non-polysiloxane crosslinking agent, wherein the hydrophilic non-polysiloxane crosslinking agent is polyethylene glycol dimethacrylate (PEGDMA) having a structural formula represented by the following formula (A). JPEG2026105801000009.jpg24170 In the formula, R1 and R2 are CH3, or R1 and R2 are H, and n is an integer from 4 to 42.

The application discloses a solid-state polymer electrolyte, a flexible electrochromic device and a preparation method, and relates to the technical field of electrochromic technology. The preparation method of the solid-state polymer electrolyte comprises the following steps: mixing polyethylene glycol dimethacrylate, thermoplastic polyurethane and a lithium salt, and performing cross-linking polymerization to obtain the solid-state polymer electrolyte. Through the preparation method, a semi-interpenetrating network is formed by the reversible physical action of a covalently cross-linked polyethylene glycol dimethacrylate three-dimensional network and thermoplastic polyurethane, and a solid-state electrolyte with high ionic conductivity and good mechanical flexibility is prepared, thereby effectively solving the problem that the existing solid-state electrolyte based on polyethylene glycol dimethacrylate cannot simultaneously consider good ion migration performance and mechanical flexibility.

The application discloses a kind of light-curable 3D printing orientation acrylic-based liquid crystal photosensitive resin composition.The composition includes:0.1~20% small molecule liquid crystal,10~80% acrylic resin,0~25% polyethylene glycol dimethyl acrylate resin,0~25% alkoxylated acrylate,0~25% diluent,1~10% photoinitiator,0.1~5% defoaming agent,0~5% leveling agent and 0~5% antioxidant.The photosensitive resin composition is simple to prepare,uses light-curing 3D printing technology to fix small molecule rod-shaped liquid crystal during printing process and realizes light orientation,at this time small molecule liquid crystal is enhanced acrylic-based photosensitive resin due to its high modulus,excellent length-diameter ratio,preparation excellent acrylic-based liquid crystal photosensitive resin composition,while small molecule liquid crystal is simple in selection and synthesis strategy,avoid the problem of long production cycle and high cost in high polymer liquid crystal synthesis,has important significance for 3D printing application field.

This invention discloses a solid electrolyte, a lithium-based energy storage device, and a preparation method thereof. The solid electrolyte is obtained by curing an electrolyte solution with an ultraviolet lamp. The electrolyte solution includes polyethylene glycol dimethacrylate, an initiator, and a monomer. The monomer contains fluorosulfonyl groups and ester groups. The presence of fluorosulfonyl groups in the monomer side chains can reduce the crystallinity of the polymer, effectively forming a passivation layer on the surface of the lithium anode, expanding the electrochemical window of the battery, thereby improving the cycle life of the battery. The formed flexible polymer skeleton can increase the compatibility between the electrolyte and the electrode, thereby reducing the interfacial resistance. The passivation layer can uniformly shape the interfacial electric field, regulate the diffusion of lithium ions, thereby effectively suppressing dendrite growth and achieving dense and uniform deposition. The lithium-based energy storage device using the monomer-containing electrolyte of this invention can greatly improve the cycle life of lithium half-cells, significantly improve the utilization rate of lithium metal anodes, effectively reduce the polarization voltage of the battery, and significantly improve the coulombic efficiency of the battery.