72 results about "Oxygen inhibition" patented technology

The invention discloses an optical adhesive with dynamic bond exchange and gradient curing functions and a preparation method thereof, relates to an optical adhesive, and aims to solve the problems of interface failure and light transmission attenuation which are easy to occur in the existing optical adhesive. The invention starts from the following three points: 1, two-stage dynamic covalent cross-linking: 1, UV (ultraviolet) initiates acrylate polymerization to form a main network; part of unreacted epoxy groups are retained. 2, thermally activating dynamic boric acid ester bond exchange to realize network reconstruction and stress release; 2, a dual-wavelength gradient initiation system: a 365nm UV curing surface and a 405nm LED penetrate through a curing deep layer to avoid an uncured layer caused by oxygen inhibition; 3, a nano composite anti-reflection technology: mesoporous SiO (at) TiO core-shell nanoparticles (refractive index gradient matching) improve the light transmittance to gt; the content is 99.5%.

An article including at least one first metallic layer, at least one dielectric layer; and at least one second metallic layer is disclosed. The at least one dielectric layer can include at least one of (i) a photo-initiator, (ii) an oxygen inhibition mitigation composition, (iii) a leveling agent, and (iv) a defoamer.

The invention provides a composite photo-initiation system electronic adhesive as well as a preparation method and application thereof, and relates to the technical field of anisotropic conductive adhesive films. The adhesive comprises a thermoplastic resin solution, an acrylate monomer, epoxy resin, a polyfunctional oligomer solution containing a carbon-carbon double bond and an epoxy group, an insulating inorganic filler, conductive particles and a composite photoinitiator solution, wherein the composite photoinitiator is composed of a free radical photoinitiator and a cationic photoinitiator, and acrylate free radical chain polymerization and epoxy resin cationic ring opening polymerization are synchronously triggered through ultraviolet light; and the polyfunctional oligomer is used as a molecular bridge to bond the two-phase curing network to form an interpenetrating cross-linked structure. The electronic adhesive provided by the invention realizes low-temperature rapid curing for 1-15 seconds, the curing shrinkage rate is reduced to below 1%, the reliability defect caused by oxygen inhibition, high shrinkage rate and phase separation of a traditional single system is solved, and the electronic adhesive is suitable for low-temperature efficient packaging of high-precision electronic components.

The invention relates to organosilicone modified acrylic resin, a UV-thermal dual-curing adhesive and a preparation method of the organosilicone modified acrylic resin. The organosilicone modified acrylic resin is obtained by reacting a bifunctional acrylate monomer and modified polysiloxane under the action of a polymerization inhibitor 1 and a catalyst 1; the modified polysiloxane is obtained by reacting hydrogen-containing silicone oil, allyl glycidyl ether and 1, 4-cyclohexanedimethanol divinyl ether under the action of a polymerization inhibitor 2 and a catalyst 2. The adhesive prepared by matching the organic silicon modified acrylic resin with auxiliaries such as a monomer and an initiator can be subjected to UV-heat dual curing, the surface is dry and comfortable after curing, the sticky'oxygen inhibition 'phenomenon is avoided, and the adhesive has good hardness; the adhesive force with various base materials including PC, aluminum materials, glass and PET is good; the shear strength retention rate of each base material after double 85 1000 hours of aging is 70% or above; the appearance is not obviously changed in a high-temperature aging test, and better heat resistance is shown.

The invention relates to a click photocuring material as well as a preparation method and application thereof, and relates to the field of heat-conducting insulating materials. The click photocuring material is prepared from the following raw materials: a photocuring monomer, a bifunctional or polyfunctional sulfhydryl compound, a photoinitiator and a modified heat-conducting particle filler, the click photocuring material is prepared through a thiol-ene click reaction. Compared with a traditional free radical and cation photocuring system, the click photocuring material has the advantages that the problems of oxygen inhibition, initiator residue, volume shrinkage and the like do not exist.

The invention relates to the technical field of polyvinyl chloride, and discloses a low-smoke flame-retardant PVC floor film and a preparation method thereof.The low-smoke flame-retardant PVC floor film is prepared from, by weight, 100 parts of polyvinyl chloride resin, 5-20 parts of epoxidized soybean oil antistatic flame retardant and the like. The epoxidized soybean oil antistatic flame retardant contains a large number of phosphate flame-retardant groups and a benzene ring structure with high char-forming property, combusted phosphate is pyrolyzed to generate phosphoric acid substances, dehydration of a floor film is promoted to form a carbon layer, oxygen can be isolated, smoke escape is inhibited, and good smoke suppression and flame retardant effects are achieved. The epoxidized soybean oil antistatic flame retardant contains hydrophilic carboxyl and quaternary ammonium salt groups, so that the water contact angle of a polyvinyl chloride film can be reduced, the surface resistivity is reduced, and the surface hydrophilicity and antistatic performance of a floor film are improved.

The present invention provides an adhesive composition for a dicing tape, which may prevent the success rate of chip pick-up from decreasing due to an oxygen inhibition phenomenon occurring in a dicing process, and a dicing tape including the same. The adhesive composition for a dicing tape includes an adhesive binder, a reducing agent, and a photoinitiator.

The utility model discloses a kind of ultraviolet light solidification oxygen inhibition inhibiting device, comprising: horizontal transport processing platform, suit sealing support, a pair of hydraulic sealing door, ultraviolet light solidification structure and oxygen inhibition inhibiting structure, the utility model relates to ultraviolet light solidification technical field, full-sealing inert environment control system, adopt double hydraulic sealing door and gas replacement device linkage, realize the oxygen content≤50ppm oxygen-free environment by flow valve accurate control, cooperate with gas detector real-time monitoring, effectively inhibit oxygen inhibition effect, significantly improve the solidification quality of light-cured material surface layer;Multi-dimensional motion adjusting mechanism, longitudinal and transverse two-way positioning system constructed by three-stage screw module, cooperate with the vertical lifting assembly of electromagnetic drive, realize the repeat positioning accuracy of ±0.05mm of spray head group, can be compatible with 50-300mm width range of workpiece adaptive processing.

The invention discloses polypropylene flame-retardant plastic as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The polypropylene flame-retardant plastic is prepared from the following raw materials in parts by mass: 70 to 80 parts of polypropylene, 15 to 25 parts of halogen-free flame retardant, 1 to 5 parts of flame-retardant synergist, 5 to 15 parts of flexibilizer, 0.1 to 0.5 part of antioxidant and 0.5 to 2 parts of lubricant. The halogen-free flame retardant with a specific structure is matched with the flame-retardant synergist, so that a compact and stable carbon layer can be formed on the surface of a polypropylene matrix, heat and oxygen are effectively isolated, and release of combustible gas is inhibited, so that the flame-retardant performance is remarkably improved, the combustion spreading speed is reduced, and the vertical combustion grade is improved.

The invention provides an acrylate polymer for an OCA optical adhesive, a single-layer OCA optical adhesive with a gradient cross-linked structure and a preparation method and application, and relates to the technical field of optical adhesives, the oxygen inhibition effect in the UV curing process is ingeniously utilized, the gradient cross-linked structure with the upper portion being soft and the lower portion being hard is actively constructed in a single adhesive layer, and the single-layer OCA optical adhesive with the gradient cross-linked structure is obtained. Therefore, contradictory properties (such as softness / hardness, initial adhesion / high strength and filling / glue overflow resistance) are integrated, and the technical problem that the existing homogeneous OCA cannot give consideration to various properties is solved.

This invention aims to create a spatially isolated local reaction microenvironment for Rubisco by introducing a complete β-carboxysome microcompartment system. This design goal avoids oxygen inhibition, laying the foundation for ultimately achieving efficient and specific CO2 fixation. It provides a novel approach to overcome the fundamental problem of low efficiency of carbon-fixing enzymes in cytosols due to intense oxygen competition. By introducing the complete carboxysome system as a module, engineered yeast strains with high carboxylase activity and significantly improved ethanol production were obtained, providing a solid foundation for building next-generation yeast cell factories that produce high-yield ethanol using CO2 as a raw material.

The present application relates to the field of adhesive, especially to a kind of UV curing adhesive and preparation method and curing process, by weight parts, including the following components: modified polyurethane acrylate 30-50 parts, composite photoinitiator 3-8 parts, active diluent 20-40 parts, silane coupling agent 1-5 parts, auxiliary 0.5-3 parts;Modified polyurethane acrylate is side chain containing alkenyl end hydroxyl polysiloxane modified polyurethane acrylate, and its number average molecular weight is 2000-4000g / mol.The beneficial effects of the present application are: by the compounding of radical type and cationic photoinitiator, the surface curing of radical type photoinitiator is quickly realized, the cationic photoinitiator has the ability of anti-oxygen inhibition, can realize deep curing, avoid surface tack, ensure that adhesive layer is cured uniformly and completely, and the curing depth can reach more than 0.5mm.

This invention discloses a production line and process for silk-insulated wire and cable with gradient temperature control, micro-positive pressure, and oxygen inhibition, belonging to the field of silk-insulated wire processing technology. The production line is equipped with wire feeding, straightening, wrapping, varnish impregnation, UV curing, and winding equipment arranged coaxially and at the same height along the cable conveying direction. The UV curing equipment integrates a micro-positive pressure oxygen inhibition system and a segmented gradient constant temperature heating module. The system can construct and maintain a micro-positive pressure inert gas environment of 100-500 Pa gauge pressure within the curing chamber, effectively isolating oxygen and inhibiting the UV curing oxygen inhibition effect. The heating module can form a continuous linear temperature gradient field of 20℃ to 45℃±2℃ within the curing chamber. The low-temperature deep curing zone strengthens the curing of the inner layer of the insulating varnish, while the heated surface curing zone achieves post-crosslinking and curing of the coating surface, solving the industry pain point of asynchronous curing of the inner and outer layers of the insulating varnish.

The application discloses a UV and moisture dual-cured high-temperature-resistant hot-melt acrylate pressure-sensitive adhesive tape and a preparation process thereof, and belongs to the technical field of high polymer materials. The pressure-sensitive adhesive tape comprises a base material and an adhesive layer. Raw materials of the adhesive layer comprise acrylate prepolymer containing a side chain containing a vinyl ether group, modified terpene resin containing a phenolic hydroxyl group, alicyclic epoxy functional silane, a cationic photoinitiator and an antioxidant. By controlling the molar ratio of the phenolic hydroxyl group and the vinyl ether, the tackifying resin is chemically grafted into the polymer network by using the cationic chain transfer reaction, and the double mechanism of the light-induced cationic polymerization and the acid-catalyzed moisture curing is combined, so that the problems of poor temperature resistance and oxygen inhibition of the traditional hot-melt adhesive are solved. The tape has excellent high-temperature shear resistance, high initial adhesion and deep curing characteristics, and the preparation process has good hot-melt processing stability.

The invention relates to the technical field of secondary batteries, in particular to a positive pole piece, a preparation method of the positive pole piece, a secondary battery and electric equipment. The positive pole piece comprises a positive current collector and a positive active layer, and the positive active layer comprises a positive active material, a conductive agent, a binder and an oxygen inhibition catalyst; the mass fraction A of the oxygen inhibition catalyst in the positive electrode active layer, the specific surface area S of the positive electrode active material and the porosity P of the positive electrode plate meet the following relational expression: A * S * P / 50 is more than 0.5 and less than 1.5. By controlling the parameters A, S and P of the positive plate to meet the specific relational expression of A * S * P / 50 being more than 0.5 and less than 1.5, the oxygen evolution reaction of the positive active material can be effectively inhibited, the structural stability of the positive active material is improved, the phase change problem is improved, and the phenomena of structural collapse and particle cracking are relieved, so that the cycle performance of the battery is improved.

The invention relates to the technical field of organic silicon materials, and discloses sulfydryl silicon resin, application thereof and an organic silicon pressure-sensitive adhesive, the sulfydryl silicon resin is obtained by catalyzing hydrolysis and polycondensation of an M-chain-link silane monomer, a T-chain-link silane monomer and a Q-chain-link silane monomer in an isopropanol aqueous solution of strong acid; the organic silicon pressure-sensitive adhesive is synthesized from sulfydryl silicon resin, double-end vinyl silicone oil and a free radical photoinitiator; the sulfydryl silicon resin is prepared from a silane end-capping reagent, sulfydryl silane, tetraethoxysilane and the like; a sulfydryl group is grafted to a silicon resin side chain to prepare the light-cured sulfydryl silicon resin, after light curing, the light-cured sulfydryl silicon resin can meet the application requirements of a light-cured organic silicon pressure-sensitive adhesive by utilizing a chemical reaction between sulfydryl and vinyl, and the problems of oxygen inhibition and the like existing in an acrylic acid light curing system are solved.

The invention relates to the technical field of anaerobic adhesives, in particular to a UV anaerobic adhesive based on a composite initiator and a preparation method thereof.The UV anaerobic adhesive is at least prepared from, by weight, 55-75 parts of acrylate resin, 20-30 parts of diluting monomer, 1-5 parts of cationic photoinitiator, 0.5-5 parts of free radical photoinitiator, 1.5-3 parts of peroxide initiator and 2.5-6 parts of auxiliaries. And on the basis that the provided product is rapidly cured and molded after UV illumination, the oxygen inhibition effect is greatly reduced, the curing shrinkage rate is reduced, the bonding strength is improved, the limitation of a bonding material is also reduced, and the application range is wider.

The invention provides an anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive and a preparation method thereof. The anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive contains polyfunctional group mercaptan, tertiary amine and fumed silica. The anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive is prepared from the following raw materials: 40 to 60 parts of acrylate, 20 to 40 parts of acrylate monomer, 10 to 30 parts of polyfunctional group mercaptan, 1 to 5 parts of photoinitiator, 1 to 5 parts of tertiary amine, 1 to 10 parts of fumed silica and 1 to 3 parts of additive. On the basis of a'thiol-ene 'click reaction of thiol and acrylate, the oxygen inhibition effect of the curing adhesive is improved, acrylic acid chain type free radical polymerization is carried out, molecular chains are closely crosslinked, the structural strength and mechanical property of the curing adhesive are improved, and the curing adhesive is more resistant to high temperature. In the curing adhesive system, tertiary amine has an inhibition effect on oxygen inhibition, and fumed silica is used as a filler to enhance the mechanical strength and further improve the mechanical properties at high temperature. The anti-oxidation polymerization-inhibition high-temperature-resistant UV curing adhesive disclosed by the invention has the characteristics of rapid curing, good surface dryness, excellent mechanical properties, high temperature resistance and the like.

The invention relates to the technical field of high polymer materials, and discloses a preparation method of sodium acrylate and derivatives thereof and PEGDA (polyethylene glycol diacrylate) copolymerized hydrogel, which comprises the following steps: S1, carrying out deep deoxidization pretreatment on raw materials containing sodium methacrylate monomers, a polyethylene glycol diacrylate cross-linking agent and water, and preparing under the protection of inert gas to obtain a prepolymerized solution; s2, carrying out polymerization reaction by adopting a programmed thermal management process to obtain a gel prepolymer; s3, carrying out hot press molding treatment on the gel prepolymer to obtain cured hydrogel; and S4, carrying out multi-stage deep purification treatment on the cured hydrogel. According to the method disclosed by the invention, the three technical problems of oxygen inhibition, thermal runaway and toxic residue of products in free radical polymerization are effectively solved by systematically controlling a reaction source, a process and a product. The prepared hydrogel is high in batch-to-batch reproducibility, uniform in network structure and suitable for industrial large-scale production, and the biocompatibility reaches the medical implantation level standard.

The application discloses a modulus UV-controllable double-curing conductive adhesive film and a preparation method and application thereof, and belongs to the technical field of electronic packaging materials. The conductive adhesive film comprises an A component, a B component and a conductive filler. The A component comprises a functional acrylate copolymer prepared from a monomer mixture through solution polymerization. The monomer mixture comprises soft monomers, hard monomers, hydroxyl-containing monomers, epoxy-containing monomers, polymerizable benzophenone photoinitiators, silane coupling agents and free radical polymerization initiators. The B component comprises one or a combination of latent epoxy curing agents, conductive accelerators, curing accelerators and anti-settling agents. The application completely solves the problem of oxygen inhibition, realizes controllable adjustment of the modulus and pressure sensitivity of the adhesive film, has no small molecule residue, has excellent conductive performance and good storage stability.

The invention relates to the technical field of plastic removal processes, and discloses nano plastic removal oil and a preparation method thereof, the plastic removal oil comprises the following components: 8-12 wt% of a photoinitiator, 48-52 wt% of modified polyurethane acrylate, 8-10 wt% of modified polyester acrylate, 25-28 wt% of an active monomer, 0.4-0.6 wt% of a leveling agent, 0.8-1.0 wt% of a surface energy increasing agent, 1.6-2.0 wt% of an oxygen inhibition inhibitor, and 0.4-0.6 wt% of a defoaming agent. The preparation method of the nano plastic-removing oil is simple and convenient to operate, all the components are stirred and mixed step by step, the temperature, the proportion and the stirring speed are accurately controlled, and it is ensured that the performance of the nano plastic-removing oil is stable. The preparation method comprises the following steps: proportionally blending monomers into an agent A for later use, and blending modified polyurethane acrylate and the like into an agent B for later use; adding the photoinitiator into the agent A, heating, stirring and dissolving, adding the agent B, and uniformly stirring; and finally, adding auxiliaries, uniformly stirring, filtering and barreling. According to the method, all the components are fully reacted and uniformly dispersed, and the product quality and performance are guaranteed.

To provide a photosensitive resin composition for a flexographic printing plate, allowing accurate reproduction of a microcell pattern on the surface of a flexographic printing plate even in the absence of an oxygen barrier layer and without special apparatus or additional steps, while exhibiting excellent reproducibility of isolated dots, and a flexographic printing plate produced using the same.SOLUTION: A photosensitive resin composition for flexographic printing plates comprises (A) a conjugated diene polymer, (B) a photopolymerizable unsaturated compound, (C) a photopolymerization initiator, and (D) an oxygen inhibition suppressant.SELECTED DRAWING: None

The present invention discloses a liquid crystal elastomer, a preparation method thereof and a liquid crystal driving element. The liquid crystal elastomer is obtained by carrying out a polymerization reaction on a liquid crystal monomer, a chain extender and a crosslinking agent. The liquid crystal monomer is selected from bis-terminal vinyl liquid crystal monomers and bis-terminal epoxy liquid crystal monomers. The chain extender is selected from dimercapto monomers. The crosslinking agent is selected from one or more of trithiol monomers and tetrathiol monomers. The liquid crystal elastomer of the present invention is based on orthogonal click chemistry, and the polymerization process is divided into two steps. The first step is to generate a lightly crosslinked network through base-catalyzed thiol-epoxy click chemistry. After mechanically stretching the sample of the first step, the second step of crosslinking is carried out through free-radical-initiated thiol-ene click chemistry to obtain a single-domain liquid crystal elastomer. The present invention realizes the fixation of the crosslinked network through thiol-ene click chemistry, and can effectively solve problems such as oxygen inhibition of polymerization and large volume shrinkage rate. Moreover, the single-domain liquid crystal elastomer of the present invention has excellent stability.

The application discloses a water-based UV coating spraying and curing system, and relates to the technical field of coating spraying and curing.The system comprises a hardware execution module, an inert gas protection and recovery module, a sensing and detecting module, a PLC intelligent control module, a communication module and a composite UVLED curing module; high-purity nitrogen is used to build a micro-positive-pressure oxygen-free curing atmosphere, so that oxygen inhibition, yellowing and pinhole defects are eliminated; a one-way heat conduction structure is arranged in the curing module, one-way heat pipes, one-way heat conduction sheets or gradient heat conduction layers are matched with phase change heat storage layers and graphene heat conduction nets, LED lamp beads are instantaneously and unidirectionally led out, a heat insulation buffer layer is matched to block heat backflow, and heat disturbance of the inert gas flow field is avoided.The curing environment is stable, heat dissipation is efficient, and coating consistency is good, so that the application is suitable for high-end coating scenes such as furniture, 3C electronics and automobile parts, and problems such as oxygen inhibition, heat disturbance and uneven curing of traditional equipment are solved.

The present application relates to the technical field of organic photocuring, and discloses a photosensitive resin composition, a preparation method thereof, a photosensitive resin material prepared from the photosensitive resin composition and application of the photosensitive resin material. The composition comprises, in parts by weight, 10-30 parts of polyester modified epoxy acrylate, 15-30 parts of aliphatic polyurethane acrylate, 30-36 parts of active diluent, 2-5 parts of photoinitiator and 5-25 parts of mercapto-terminated polysulfide liquid rubber. The C-S bond and rubber phase contained in the mercapto-terminated polysulfide liquid rubber can not only reduce the oxygen inhibition effect and avoid the odor problem caused by small molecule mercaptan, but more importantly, can significantly improve the impact strength and gel rate of the photosensitive resin material prepared from the photosensitive resin composition, and reduce the volume shrinkage of photocuring, so that the comprehensive performance of the photosensitive resin composition is improved.

The invention discloses a hillock oxygen suppression covering method based on a reverse air permeability structure, and belongs to the technical field of coal gangue disaster prevention and ecological remediation. The method comprises the steps that discharged gangue is subjected to three-stage screening, and coarse-particle gangue, medium-particle gangue and fine-particle gangue are obtained; according to coarse-particle gangue, medium-particle gangue and fine-particle gangue obtained through screening, layered stacking and compacting are sequentially conducted from bottom to top, and a reverse air permeability structure with the upper average particle size smaller than the lower average particle size is formed; and after paving and compacting of each gangue layer are completed, an oxygen inhibition covering layer matched with the gangue layer in function is synchronously constructed on the surface, and a gradient oxygen inhibition covering system with the gangue layers and the covering layers alternately nested is formed. Through the multi-dimensional synergistic effect of physical barrier, chemical inhibition, structural regulation and dynamic management, the oxygen diffusion path is effectively blocked, the technical problem of spontaneous combustion caused by oxygen permeation of the gangue dump is solved, and ecological restoration and long-term stability are both considered.

The invention discloses a nano flame retardant modified polyvinyl chloride-based furniture board and a preparation method thereof, and belongs to the technical field of polymer composites for furniture, the method comprises the following steps: preparing zinc-aluminum layered double hydroxides (at) ZnMOF) through an in-situ growth method, then mixing with synthesized amino POSS, drying, and sieving to obtain a nano composite flame retardant; premixing with PVC resin, a heat stabilizer, a lubricant and a plasticizer, and performing granulation, hot pressing and cold pressing molding to obtain the modified polyvinyl chloride-based furniture board. Through the synergistic effect of cooling, oxygen blocking, heat absorption, smoke suppression and dispersion enhancement of the layered bimetal hydroxide, the ZnMOF and the amino POSS, the problems that a traditional flame retardant is insufficient in mechanical property, has the risk of environmental protection toxicity and is prone to agglomeration are solved, and the polyvinyl chloride-based furniture board has excellent flame retardance, environmental protection property, strong mechanical bearing capacity and low smoke generation toxicity; and the safety and use requirements of indoor furniture plates can be met.

To provide an oxygen inhibition reducing agent that can effectively reduce inhibition of curing by oxygen without yellowing a cured product.SOLUTION: An oxygen inhibition reducing agent contains a compound represented by the general formula (1) in the figure. (In the formula (1), -X- may be present or absent, and if present then X represents an oxygen or sulfur atom; A represents an alkylene group which may comprise an ether bond, thioether bond, ester bond or amide bond; and Y represents a C1-18 fluoroalkyl group.)SELECTED DRAWING: None

The utility model discloses a nitrogen protection curing box, and belongs to the technical field of curing devices. The device mainly comprises a lower box body and an upper box body, a plurality of connecting plates are fixedly connected to the outer ends of the lower box body and the upper box body, first sealing rings are installed at the edge positions of the ends, close to each other, of the lower box body and the upper box body, and nitrogen spraying pipes are installed in inner cavities of the lower box body and the upper box body. According to the nitrogen protection curing box, the multiple adsorption holes are formed in the surface of the positioning table, the air exhauster is installed in the positioning table, and an adhesive tape is adsorbed to the surface of the positioning table through negative pressure, so that the adhesive tape is fixed, the flatness of the surface of the adhesive tape is guaranteed, the surface of the adhesive tape is evenly heated, and the curing speed and effect are improved; the lower box body and the upper box body can be rapidly filled with nitrogen through the arrangement of a plurality of nitrogen spraying pipes, oxygen in the lower box body and the upper box body is rapidly exhausted in cooperation with the use of an exhaust assembly, oxygen inhibition reaction of the oxygen is avoided, the adhesive tape curing effect is guaranteed, and the processing efficiency is improved.

The invention provides a thermal initiation hydrogel deep purification device and a thermal initiation hydrogel deep purification process, which adopt a non-photopolymerization system and realize synchronous solving of three problems of oxygen inhibition, reaction out-of-control and residual toxicity through inert reaction system construction, gradient initiation and stepped temperature rise control and a multi-step deep purification process. According to the preparation method disclosed by the invention, deep deoxidization of the raw materials, construction of an inert reaction system and whole-process nitrogen protection are combined with sealing optimization of a reaction kettle, and an initiator gradient addition and stepped heating polymerization mode is adopted, so that hot spot implosion is effectively avoided, and the reaction process is stable and controllable; two initiation schemes are provided, conventional, temperature-sensitive and high-mechanical-strength hydrogel can be prepared according to requirements, the method is suitable for production of various medical instrument products such as wound dressings and tissue filling agents, meanwhile, the productivity can be optimized through a continuous flow reactor, and the method has good industrial application prospects.