33results about How to "Low ionization potential" patented technology

Crosslinkable arylamine compounds; oligomers and polymers prepared from such crosslinkable arylamine compounds; films and coatings; and multilayer electronic devices comprising such films are disclosed.

The invention discloses a POE adhesive film with high electrical strength and electrical tracking resistance. The POE adhesive film comprises the following raw materials by weight: 70 to 90 parts of ethylene-octene copolymer modified particles and 10 to 30 parts of a functional masterbatch, wherein the functional masterbatch comprises the following raw materials by weight: 70 to 90 parts of an ethylene-vinyl acetate copolymer, 10 to 30 parts of an ethylene-methyl methacrylate copolymer, 0.1 to 5.0 parts of a photoinitiator and 0.5 to 3.0 parts of a stabilizer; and the stabilizer is a benzil stabilizer. The invention also discloses a preparation method for the above-mentioned POE adhesive film. On the basis that high transmittance and adhesion properties of the adhesive film are maintained,the POE adhesive film provided by the invention has high electrical strength and electrical tracking index resistance, is applied to packaging of a photovoltaic assembly, can effectively improve theelectrical strength and electrical tracking index resistance of the photovoltaic assembly, avoids large drop or failure of the power of the photovoltaic assembly in the process of photoelectric conversion, thereby greatly reducing hot spot effect and the phenomenon of electric breakdown damage or electrical tracking damage.

Crosslinkable substituted fluorene compounds; oligomers and polymers prepared from such crosslinkable compounds; films and coatings; and multilayer electronic devices comprising such films are disclosed.

The invention discloses a benzopyran-based luminescent auxiliary material, a preparation method thereof and an organic electroluminescent device, which belong to the technical field of chemistry and luminescent materials. The general structural formula of the luminescent auxiliary material is: in the formula, m and n are respectively are independently natural numbers not greater than 4, and m and n are not 0 at the same time; L 1 , L 2 are each independently at least one of a linking bond, a substituted or unsubstituted C6-C30 arylene group, and a substituted or unsubstituted 3- to 30-membered heteroarylene group. In the benzopyran-based luminescent auxiliary material provided by the embodiment of the present invention, the amine unit on the complex has a lower ionization potential, better electron donating property, and higher hole mobility; at the same time, the symmetry of the molecule is reduced. sex, increasing the conformational isomers of the molecule. After the luminescence auxiliary material is used in an organic electroluminescent device, the luminous efficiency of the device is improved, the lifespan is delayed, and the driving voltage is reduced.

The invention belongs to the technical field of welding materials, in particular to a low-hydrogen easy-to-weld basic flux-cored wire for structural steel prepared from steel slag. It is made of low-carbon cold-rolled steel strip wrapped core powder, which includes steel slag 22%‑28%, Mo40V40Al20 powder 7.5%‑9.0%, FeMn60Si34C0.02 powder 5.6%‑8.2%, FeTi80‑A powder 4.1%‑ 5.0%, CaF plated with Ni on the surface 2 Powder 7.8%‑9.6%, Nano TiO 2 4.2%-6.0%, 200 mesh nitrocellulose powder 3.1%-3.8%, feldspar 2.1%-3.0%, and the balance is FHT100·25 reduced iron powder. The invention has stable arc, small spatter, good post-weld forming, easy slag removal, suitable for all-position welding, low residual hydrogen content in deposited metal, uniform chemical composition and high mechanical properties, and is an innovation in the field of basic flux-cored welding wire. .

The invention discloses a POE adhesive film with high electrical strength and electrical tracking resistance. The POE adhesive film comprises the following raw materials by weight: 70 to 90 parts of ethylene-octene copolymer modified particles and 10 to 30 parts of a functional masterbatch, wherein the functional masterbatch comprises the following raw materials by weight: 70 to 90 parts of an ethylene-vinyl acetate copolymer, 10 to 30 parts of an ethylene-methyl methacrylate copolymer, 0.1 to 5.0 parts of a photoinitiator and 0.5 to 3.0 parts of a stabilizer; and the stabilizer is a benzil stabilizer. The invention also discloses a preparation method for the above-mentioned POE adhesive film. On the basis that high transmittance and adhesion properties of the adhesive film are maintained,the POE adhesive film provided by the invention has high electrical strength and electrical tracking index resistance, is applied to packaging of a photovoltaic assembly, can effectively improve theelectrical strength and electrical tracking index resistance of the photovoltaic assembly, avoids large drop or failure of the power of the photovoltaic assembly in the process of photoelectric conversion, thereby greatly reducing hot spot effect and the phenomenon of electric breakdown damage or electrical tracking damage.

The invention discloses a triphenylamine unit porphyrin copolymer with a molecular structural general formula (I) in the specification as well as a preparation method and application thereof. In the formula (I), R1, R2, R3 and R4 are selected from alkyls of C1-C32; and n is an integer ranging from 1 to 100. The triphenylamine unit porphyrin copolymer has the advantages of favorable electronic buffer property, photoelectric magnetism, rigidity and flexibility as well as better heat stability, environment stability, dissolution performance and film forming processing property. The preparation method of the triphenylamine unit porphyrin copolymer has the advantages of simplicity, mild reaction conditions, high yield and easiness for operation and control, and is suitable for the field such as solar cells and the like.

The present invention discloses a polymer and a copolymer and a method of making the same. The monomer of the polymer of the present invention includes a bi-triphenylamine functional group having a first end and a second end; a fluorene functional group bonded to the first end; and at least two phenyl isopropyl group bonded to the second end.

The present invention provides a triamine amine compound and its preparation methods, and prepares the application of solar cells to solve the problem of low photoelectric conversion efficiency of dye sensitivity solar cells in existing technology.The present invention uses triamine as the body, and the common apecifer ring -containing azool is used as a bridge bond, and cyan acetic acid is used as a receptor. It synthesizes six triophara amine dye sensitivity agents; this type of compound is assembled as dye sensitizer agent assembly.The dye -sensitized solar cell has a good photoelectric conversion efficiency, adding new application substances to the screening of dye sensitizers.

The invention provides a nitrogen-containing heterocyclic organic electroluminescent compound and its preparation method and application. The organic electroluminescent compound has the structure of formula I. It acts as a hole-transport material for electroluminescent devices. The amine unit has a lower ionization potential, better electron donating property, and higher hole mobility; it reduces the symmetry of the molecule, increases the conformational isomers of the molecule, and has a rigid planar structure, so it is not easy to Crystallization, not easy to aggregate, and the introduction of structures such as nitrogen-containing heterocycles make the material have high photothermal stability. Furthermore, using it as the hole-transporting material of the present invention can improve characteristics such as luminous efficiency, driving voltage and service life in organic light-emitting devices.