10results about How to "Good light curing effect" patented technology

The invention provides a light-conversion photosensitive laminate, a cured film, a circuit board and an electronic device. The light-conversion photosensitive laminated body provided by the invention comprises a supporting layer, a photosensitive layer and an optional protective layer which are sequentially laminated, the light-conversion photosensitive laminated body contains a light conversion agent, the absorption wavelength of the light conversion agent is greater than 390nm, and the emission wavelength of the light conversion agent is less than or equal to 390nm. The light conversion agent is added into the light conversion photosensitive laminated body provided by the invention, and the light conversion agent has an up-conversion function, can trigger an anti-Stokes phenomenon, absorbs long wavelength and low energy, and releases short wavelength and high energy, so that when the light conversion photosensitive laminated body is irradiated by an exposure machine, the light conversion effect is good, and the light conversion effect is good. According to the invention, long-wave-band light emitted by the exposure machine is absorbed and converted into short-wave-band light which can be absorbed by the photoinitiator by the light conversion agent, so that the high utilization rate of the light source is realized under the condition that the conventional photoinitiator is still used, the selectivity of the photoinitiator is expanded, and the photocuring speed and the photocuring effect of the photosensitive layer are improved.

The utility model provides a light curing device, which relates to the technical field of printing and packaging, and comprises a light curing box, two ends of the light curing box are provided with through grooves, the inner side of the light curing box is provided with a mounting plate, the bottom of the mounting plate is provided with a light curing lamp, the top of the mounting plate is provided with a moving block, the inner side of the moving block is in threaded connection with a threaded rod, and the inner side of the threaded rod is in threaded connection with the light curing lamp. A motor is arranged at one end of the threaded rod, guide rods are symmetrically arranged at the top of the mounting plate, the two ends of each guide rod are fixedly connected to the inner wall of the light curing box, side mounting grooves are symmetrically formed in one side of the light curing box, and electrostatic plates are movably mounted on the inner sides of the side mounting grooves. According to the electrostatic adsorption device, the installation penetrating space is provided through the side installation groove, the electrostatic plate can be conveniently and movably installed in a penetrating mode through the side installation groove, the guide groove is matched with the side supporting rod to provide the sliding guide function, the electrostatic plate can be conveniently and rapidly disassembled and assembled after electrostatic adsorption is used, and dust on the electrostatic adsorption device can be conveniently cleaned.

The utility model relates to an auxiliary tool for assembling an optical fiber collimator, which is applied to the technical field of optical communication and comprises an optical platform, the optical platform is provided with an ultraviolet curing part, the ultraviolet curing part comprises a light curing support and an ultraviolet curing lamp, the ultraviolet curing lamp is fixed on the light curing support, and the ultraviolet curing lamp is fixed on the light curing support. The ultraviolet curing lamp is arranged towards the optical platform; an ultraviolet curing lamp is arranged on the optical platform, a collimator placing part is further arranged on the optical platform, the collimator placing part comprises a supporting base and a collimator placing table, and the collimator placing table is fixed to the supporting base and located below the ultraviolet curing lamp. Compared with the mode that a worker holds an ultraviolet curing lamp to conduct curing operation, the state of the ultraviolet curing lamp fixed to the light curing support is more stable, the light curing effect is improved to a certain degree, the worker can conduct other operations synchronously in the process, and the working efficiency is improved.

It is intended to provide a negative type photosensitive resin composition that ensures high aspect ratio pattern processability, high storage stability, and high curability and also provides a cured product with good mechanical characteristics and high heat resistance. A negative type photosensitive resin composition comprising a polymer compound (A), a cationic polymerizable compound (B), a cationic polymerization initiator (C), and a solvent (D) wherein the component (A) contains at least one compound selected from the group consisting of polyamide, polyimide, polybenzoxazole, precursors thereof, and copolymers thereof and wherein both the relations 0.6A ≤ B + 0.5C ≤ 0.98A and 0.05(B + C) ≤ C ≤ 0.25(B + C) are satisfied where A (moles), B (moles), and C (moles) represent the quantities of all carboxylic acid residues, all diamine residues, and all monoamine residues, respectively, contained in the component (A).

The invention relates to the technical field of wood preservatives and insect repellents, and discloses a wood preservative and insect repellent and a preparation method thereof. The invention comprises the following steps: heating polyformaldehyde, acetone monomer and polyetheramine for reaction; acylation reaction of the reaction product to obtain an active agent; heating polyformaldehyde, acetone monomer and m-aminophenylacetylene for reaction to obtain an intermediate; adding benzyl azide to the intermediate under the action of tert-butyl alcohol and cuprous iodide to react to obtain a preservative; heating modified chitosan to react with activated diethyltriamine pentaacetic acid to obtain a modified chelating agent; adding the preservative to tetrahydrofuran for ultrasonic dispersion, adding the active agent and the modified chelating agent for ultrasonic dispersion, adding an insecticide and water for uniform stirring to obtain the wood preservative and insect repellent.

The invention provides a photosensitive composition, a photosensitive laminate and a circuit board. The photosensitive composition comprises the following components in parts by mass: 100 parts of alkali-soluble resin, 5-50 parts of a photopolymerization monomer, 0.1-10 parts of a photoinitiator and 0.01-30 parts of a light conversion agent, the absorption wavelength of the light conversion agent is greater than 390nm, and the emission wavelength of the light conversion agent is less than or equal to 390nm. The photosensitive composition provided by the invention is added with the light conversion agent, and the light conversion agent has an up-conversion function, can initiate an anti-Stokes phenomenon, absorbs long wavelength and low energy, and releases short wavelength and high energy, so that light with a relatively long wave band emitted by an exposure machine is converted into light with a relatively strong short wave band absorbed by the photoinitiator, and the exposure efficiency is improved. The high utilization rate of the light source is realized under the condition that the conventional photoinitiator is still used, so that the selectivity of the photoinitiator is expanded, and the photocuring speed and the photocuring effect are improved.

The invention belongs to the technical field of ceramic photocuring additive manufacturing, and discloses a thermosetting resin ceramic composite material and a preparation method and application thereof.The thermosetting resin ceramic composite material comprises an inner core and a shell layer, and the inner core comprises composite microspheres formed by a first material; the first material comprises coupling modified nano ceramic powder and first thermosetting resin; the shell layer includes a second thermosetting resin. The thermosetting resin ceramic composite material with a specific core-shell structure is obtained through an evaporation organic phase emulsification technology, a curing technology and a secondary emulsification and curing technology, granulation of the nano ceramic powder is achieved, the sphericity degree and compactness after granulation are more advantageous, meanwhile, the surface optical property of the nano ceramic powder is also improved, and the surface optical property of the nano ceramic powder is improved. The method can be popularized and applied in the technical field of ceramic photocuring additive manufacturing.

This application provides a photocurable quick-fix putty and its preparation method. The putty uses a functionalized modified resin as its core, combined with a MAP-POSS grafted modified photosensitive resin system and La... 3+ A three-dimensional hybrid nano-reinforcing phase, consisting of coordination-bridged one-dimensional activated BNNTs and two-dimensional ZrP nanosheets, is prepared by dispersion, degassing, and ball milling, in combination with a photoinitiator, additives, and fillers. This application effectively enhances the photocuring activity and substrate adhesion of the resin system through resin molecular structure design; improves the curing degree of thick coatings through MAP-POSS organic-inorganic hybrid modification; and significantly improves the mechanical properties and long-term protective performance of the system through rare-earth coordination-bridged three-dimensional hybrid nano-reinforcing phase. The photocurable quick-repair putty of this application achieves surface drying in 25 seconds and complete curing in 40 seconds, with a 98.2% curing degree for a 5mm thick base coat. It also possesses excellent mechanical properties and anti-aging properties, and the preparation process is simple and easy to promote and implement.

The invention belongs to the technical field of ceramic photocuring additive manufacturing, and discloses a photosensitive resin ceramic composite material and a preparation method and application thereof.The photosensitive resin ceramic composite material comprises an inner core and a shell layer, the inner core comprises composite microspheres formed by a first material, and the first material comprises coupling modified nano ceramic powder and first photosensitive resin; the shell layer includes a second photosensitive resin. The preparation method has the beneficial effects that by combining an evaporation organic phase emulsification technology, a curing technology and a secondary emulsification and curing technology, the photosensitive resin ceramic composite material with a specific core-shell structure, which is higher in density and better in sphericity degree compared with a traditional granulation technology, is prepared; and the obtained photosensitive resin ceramic composite material also shows better optical characteristics, so that the application problem of the current nano ceramic powder in photocuring printing can be solved, and the development of technologies in related fields is further promoted.

The invention discloses a photo-curing pixel arrangement structure, a photo-curing module and printing equipment, by setting a plurality of sub-pixels in different wave band ranges and performing special array arrangement on the plurality of sub-pixels, beam angles and curing effect differences of the plurality of sub-pixels in different wave band ranges are balanced, and the light-curing effect of the plurality of sub-pixels in different wave band ranges is improved. And the light coverage range of various sub-pixels can be better matched.