37 results about "Thermal creep" patented technology

The invention relates to the technical field of numerical control, in particular to a steel laser cutting numerical control system and method based on the Internet of Things. The method comprises the following steps: collecting three-dimensional temperature distribution data of a lens group in real time, and obtaining actual position coordinates of a laser focus through a displacement sensor; establishing a thermal deformation focus offset mapping table based on the corresponding relationship between the three-dimensional temperature distribution data of the lens group and the actual position coordinates of the laser focus; in the continuous machining process, workshop environment temperature and humidity parameters are monitored in real time, the thermal deformation amount of the lens set is predicted according to the workshop environment temperature and humidity parameters based on the thermal deformation focus offset mapping table, and the laser focus position is compensated and adjusted according to the thermal deformation amount of the lens set. The problems that an existing numerical control system can only calibrate linear deformation and lacks dynamic correction capacity for focus three-dimensional offset caused by nonlinear thermal creep of the lens set are effectively solved, and the influence of environment change on machining precision in the machining process can be coped with in real time.

The invention belongs to the technical field of titanium alloy casting machining, and particularly relates to a titanium alloy casting thermal creep correction casting surface protection method which comprises the steps that the surface of a graphite tool is coated with at least one layer of fireproof paint, and at least one coating is obtained; and roasting the coating so as to form a protective layer on the surface of the graphite tool. According to the casting surface protection method, the surface of the graphite tool is coated with the fireproof coating, so that direct contact between the titanium alloy casting and graphite is isolated in the thermal creep correction process, parameters of a pollution layer and a carburized layer on the surface of the casting can be effectively reduced, and the surface quality of the casting is improved; and the surface pollution of the titanium alloy casting in the thermal creep process is effectively solved.

Methods to fabricate objects by 3D printing of poly-4-hydroxybutyrate (P4HIB) and copolymers thereof have been developed. In one method, these objects are produced by continuous fused filament fabrication using an apparatus and conditions that overcome the problems of poor feeding of the filament resulting from the low softening temperature of the filament and heat creep along the fed filament. Methods using an apparatus including a heat sink, a melt tube, a heating block and nozzle, and a transition zone between the heat sink and heating block, with the melt tube extending through the heat sink, transition zone, and heat block to the nozzle are disclosed. 3D objects are also printed by fused pellet deposition (FPD), melt extrusion deposition (MED), selective laser melting (SLM), printing of slurries and solutions using a coagulation bath, and printing using a binding solution and polymer granules.

The invention provides a radar device and a supporting structure of the radar device, which can suppress thermal creep of a supporting component of the radar device mounted on a vehicle. The housing (30) houses the radar body (20). The housing (30) includes a box portion (40) and a bracket (50). The housing part (40) accommodates the radar main body (20). The bracket (50) protrudes from the box body part (40) and is fastened to the front bumper (100) or the vehicle logo plate (120). The bracket (50) is disposed at a position shifted in the thickness direction of the radar body (20) with respect to the center of gravity (G) of the radar body (20). The bracket (50) is provided with a fastening piece (55) and a first rib (51). The surface of the fastening piece (55) facing the front bumper (100) or the logo plate (120) faces the same direction as the radiating surface of the radar body (20). The fastening piece (55) is provided with an insertion hole (56). The first rib (51) is erected on the fastening piece (55). The first rib (51) extends from the case portion (40) to an end portion of the fastening piece (55).

A kind of composite manufacturing method of blade leading edge titanium alloy reinforcing edge hot creep and diffusion connection, titanium alloy reinforcing edge upper and lower thin-walled prefabricated parts are respectively prepared by the way of cutting plate material, titanium alloy reinforcing edge middle layer block prefabricated part is prepared by the way of cutting titanium alloy block material;After being assembled, the upper thin-walled prefabricated part, the core mold, the middle layer block prefabricated part and the lower thin-walled prefabricated part are arranged between the upper and lower molds, and the prefabricated part is bent and attached to the mold by cold pressing, and the titanium alloy reinforcing edge is obtained by composite forming after die closing.The composite method of hot creep and diffusion connection after piece cold pressing is used to process leading edge reinforcing edge once, which can significantly improve the forming efficiency and material utilization rate, shorten the processing cycle, and at the same time, the size precision and forming quality of reinforcing edge can be well controlled.

The invention belongs to the technical field of industrial automation control and fault diagnosis, and relates to a lithium iron phosphate rotary kiln sealing failure fault diagnosis method and system. The method comprises the steps that the instantaneous pressure of a sealed cavity, the rotation angle of a barrel, the surface temperature and the accumulative operation time are collected; a rotation modulation leakage index is calculated based on the instantaneous pressure and the rotation angle, and periodic respiration effect characteristics caused by cylinder eccentricity are extracted through angle weighting; calculating a thermal creep correction factor based on time and temperature, and quantifying the aging tendency of the material; and the two are fused to calculate a sealing failure risk index, and graded early warning or shutdown control is executed accordingly. According to the method, early deformation leakage can be found in advance when the sealing pressure does not fall to the threshold value, the diagnosis standards under the equipment aging and high-temperature working conditions are corrected in a self-adaptive mode, and the accuracy and timeliness of fault diagnosis are effectively improved.

This application discloses a method and system for reducing flatness defects in grain-oriented silicon steel. The method comprises: coiling the grain-oriented silicon steel after continuous annealing using a coiler to produce a grain-oriented silicon steel coil; coating a pre-set thickness of a trimming material and feeding it to an uncoiler; and wrapping the treated trimming material around the outer ring of the grain-oriented silicon steel coil using the uncoiler. The technical solution of this application enables the coated trimming material to serve as the outer ring of the grain-oriented silicon steel coil, subjecting it to thermal creep during the high-temperature annealing process, effectively reducing flatness defects in the grain-oriented silicon steel.

This application relates to the field of engineered wood panel manufacturing technology, and discloses a flexible, shapeable technological board and its preparation method. The technological board comprises two layers of reconstituted decorative veneers and a modified polyolefin adhesive film layer located between them. The adhesive film layer is made of metallocene propylene-based elastomer, polyolefin elastomer, maleic anhydride-grafted polyolefin initiator, crosslinking aid, and silane coupling agent. The preparation method includes: coating the surface of resin particles with liquid-phase additives, and obtaining an adhesive film with latent reactive activity through low-temperature extrusion casting; stacking the veneers and adhesive film layers, initiating crosslinking reaction and interfacial bonding through high-temperature hot pressing, and then holding the pressure and cooling for shaping. This invention solves the problems of high formaldehyde content and brittleness of traditional adhesives and poor heat resistance of ordinary thermoplastic films. The resulting board has excellent flexibility, heat creep resistance, and water-resistant bonding strength, meeting the requirements for irregular curved surface shaping.

The application relates to the technical field of hot press forming of titanium alloy parts, and particularly discloses a hot creep forming process method of a titanium alloy, which specifically comprises the following steps: (1) cleaning the surface of TA32 titanium alloy blank and a die by using a cleaning solvent until no dust, corrosion, grease, impurities and other dirt are present on the surface; (2) installing the die to a hot forming machine; (3) brushing a high-temperature resistant lubricant on the surface of the TA32 titanium alloy blank and the die; (4) starting the hot forming machine to heat the die, and heating the die to a temperature range of 780-820 DEG C; (5) placing the TA32 titanium alloy blank into the hot forming machine, and preheating for 5-12 min; (6) clamping the upper die and the lower die of the die to apply to the preheated TA32 titanium alloy blank, and taking out the part after heat preservation for 10-15 min under the pressure condition. The scheme mainly proposes an optimization scheme for the hot creep forming process of the TA32 titanium alloy, so that the forming precision is improved.

The invention belongs to the technical field of titanium alloy casting machining, and particularly relates to a titanium alloy casting thermal creep correction casting surface quality improving method which comprises the steps that before thermal creep correction is conducted, the surface of a titanium alloy casting is coated with at least one layer of fireproof coating, and then the surface of the titanium alloy casting is coated with the fireproof coating; at least one coating is obtained; and roasting the coating to form a protective layer on the surface of the titanium alloy casting. According to the method for improving the surface quality of the casting, the surface of the titanium alloy casting is coated with the refractory coating, so that the titanium alloy casting is isolated from the graphite tool in the thermal creep correction process, parameters of a pollution layer and a carburized layer on the surface of the casting can be effectively reduced, and the surface quality of the casting is improved; and the surface pollution of the titanium alloy casting in the thermal creep process is effectively solved.

The invention provides an aberration analysis method of an extreme ultraviolet lithography system, which comprises the following steps of: constructing a space energy distribution model of a shared hot area, reconstructing a composite aberration original field jointly caused by overlapping thermal creep of adjacent mirror surfaces in the shared hot area, extracting a main trend field formed by common thermal deformation of the adjacent mirror surfaces, and analyzing the aberration of the extreme ultraviolet lithography system according to the main trend field. Separating a residual field representing mirror independent deformation contribution from the composite aberration original field, distributing deformation in the residual field to a corresponding responsible mirror to form single-mirror attributable aberration fields, and distributing a weight based on the influence degree of the single-mirror attributable aberration fields on the imaging quality for each single-mirror attributable aberration field to form a single-mirror attributable aberration field; and synthesizing the weighted aberration fields of the mirror surfaces with the main trend field to generate a final aberration analysis result for aberration compensation. The method can effectively identify, separate and attribut to the composite aberration caused by overlapping thermal creep of the adjacent mirror surfaces; and the long-term imaging stability and reliability of the extreme ultraviolet lithography system under efficient operation are ensured.

To provide a radar apparatus and a radar apparatus support structure in which thermal creep of a support member for the radar apparatus mounted on a vehicle can be suppressed.SOLUTION: A housing 30 houses a radar main body 20. The housing 30 comprises a box-shaped component 40 and brackets 50. The box-shaped component 40 is configured to receive the radar main body 20. The brackets 50 are provided protruding from the box-shaped component 40, and fastened to a front bumper 100 or an emblem plate 120. Each of the bracket 50 is placed at a position offset from a center of gravity G of the radar main body 20 in a thickness direction of the radar main body 20. Furthermore, each of the brackets 50 comprises a fastening piece 55 and a first rib 51. A surface opposed to the front bumper 100 or the emblem plate 120, of the fastening piece 55 is directed toward a same direction as a radiation plane of the radar main body 20. Furthermore, an insertion through hole 56 is bored through the fastening piece 55. The first rib 51 is disposed upright to the fastening piece 55. The first rib 51 is disposed extending to an end of the fastening piece 55 from the box-shaped component 40.SELECTED DRAWING: Figure 2

The invention discloses a food contact grade water-based VAE adhesive for PE coated kraft paper as well as a preparation method and application of the food contact grade water-based VAE adhesive, and belongs to the technical field of polymer adhesives. The water-based VAE adhesive is prepared from the following components in percentage by mass: 1%-50% of a DiverSol540 VAE emulsion, 30%-90% of a DiverSol613M VAE emulsion, 1%-35% of emulsified water-based rosin and 1%-10% of water. The water-based VAE adhesive disclosed by the invention can form high-strength combination with kraft paper fibers, simultaneously realizes excellent initial wetting and firm adhesion to high-gram-weight PE coated kraft paper, has good cohesion and heat resistance, can effectively prevent thermal creep in a high-temperature coating process or in subsequent use, and solves the problem of high-end food packaging.

The invention relates to the technical field of adhesives for coated abrasive tools, and discloses a preparation method of a bio-based composite adhesive, an adhesive composition and abrasive cloth, the adhesive is prepared from the following raw materials in parts by mass: phenol, a formaldehyde solution, enzymatic hydrolysis lignin, ethylene glycol, sodium hydroxide, ammonia water, urea, boric acid, other auxiliaries and water; the preparation method comprises the steps of pre-swelling and resin synthesis. Through a pre-swelling process that ammonia water and sodium hydroxide are matched to control alkalinity, not only can complete activation of enzymatic hydrolysis lignin be achieved, but also the characteristic of low ash content of the enzymatic hydrolysis lignin can be matched, it is ensured that the adhesive has extremely low ion mobility and stable dielectric constant, the requirement of an electrostatic sand planting process is met, and accurate orientation of abrasive particles is achieved in a matched mode. The reduction of the use amount of sodium hydroxide also avoids the reduction of moisture absorption and thermal creep resistance of an adhesive layer caused by alkali metal ion residues, and solves the problem that conventional lignin is difficult to apply to the adhesive for high-precision abrasive cloth.

The invention provides a radio frequency MEMS switch and a preparation method thereof, and relates to the technical field of radio frequency MEMS switches. A substrate of the radio frequency MEMS switch comprises a first surface and a second surface which are opposite to each other, a Peltier refrigeration module is embedded in the substrate, the Peltier refrigeration module comprises a refrigeration end and a heat dissipation end, and the refrigeration end is closer to the first surface compared with the heat dissipation end. The driving electrode is arranged on the first surface, and the first electrode and the second electrode are also arranged on the first surface. The cantilever beam is electrically connected with the first electrode, the cantilever beam is arranged on the side, away from the substrate, of the driving electrode, and the cantilever beam is configured to be electrically connected with the second electrode under driving of the driving electrode. The orthographic projection of the joint of the cantilever beam and the first electrode on the substrate is overlapped with the area where the Peltier refrigeration module is located, and / or the orthographic projection of the joint of the cantilever beam and the second electrode on the substrate is overlapped with the area where the Peltier refrigeration module is located, in-situ active cooling can be carried out, and thermal creep aggravation is restrained.

The present invention discloses a heater assembly and a chemical vapor deposition device. The heater assembly is used to heat a wafer tray in the chemical vapor deposition device and includes: a heating component that can heat the wafer tray when an electric current flows through its interior; the heating component includes a plurality of heating arc segments; a plurality of support assemblies, each support assembly includes at least one support rod for supporting adjacent heating arc segments; a flexible component connected to the end of the support rod away from the heating arc segment for controlling the displacement and deformation direction of the heating arc segment; and a conduction component electrically connected to adjacent heating arc segments and / or to the support rods for enabling the electric current to flow between adjacent heating arc segments. The present invention can enable the electric current to flow between adjacent heating arc segments along the conduction component, so that the electric current flowing through the flexible component is small or even zero, thereby effectively reducing the temperature of the flexible component and its thermal creep, and thus reducing the deformation and displacement of the heating arc segments.

The invention provides a preparation method of a large-size thin-wall double-layer titanium alloy spray pipe. The technical problems that a traditional manufacturing method is low in efficiency, and the precision is difficult to guarantee are mainly solved. The method comprises the following steps: preparing a blank; processing the blank into a corresponding arc-shaped structure through a thermal creep process; removing the margins on the two sides of each blank in the width direction, and welding to obtain an inner pipe barrel blank and an outer pipe barrel blank; thermal protection coatings are sprayed on the surfaces of the inner walls and the outer walls of the inner pipe barrel blank and the outer pipe barrel blank; performing molded surface correction on the inner pipe barrel blank and the outer pipe barrel blank; detecting a molded surface; removing the margins at the two ends of the inner pipe barrel blank and the outer pipe barrel blank in the length direction; the thermal protection coatings on the surfaces of the inner pipe barrel blank and the outer pipe barrel blank are removed, and an inner pipe semi-finished product and an outer pipe semi-finished product are obtained; performing nondestructive testing on the inner pipe semi-finished product and the outer pipe semi-finished product; and the inner pipe semi-finished product and the outer pipe semi-finished product are spliced to obtain the large-size thin-wall double-layer titanium alloy spray pipe. Compared with a traditional manufacturing method, the machining efficiency and the machining precision are improved.

This invention provides a hot-melt adhesive that reduces stringing, has excellent thermal stability, superior adhesion to paper, and also exhibits excellent heat creep resistance and hot tack properties. [Solution] A hot melt adhesive comprising (A) ethylene / olefin copolymer having 3 to 20 carbon atoms, (B) ethylene / carboxylic acid ester copolymer, and (C) wax, wherein (A) ethylene / olefin copolymer having 3 to 20 carbon atoms contains (A1) metallocene-based ethylene / propylene copolymer, and (B) ethylene / carboxylic acid ester copolymer contains an ethylene / carboxylic acid ester copolymer having a content of constituent units derived from (B1) carboxylic acid ester of 2% by mass or more and 25% by mass or less, and a melt flow rate of 1 g / 10 min or more and 400 g / 10 min or less.

The application relates to a soot blower sleeve connecting structure which comprises a shell and a sleeve assembly. The connecting position of the sleeve and the soot blower shell is completely sealed by welding to prevent gas leakage at the connecting position. The soot blower is divided into two sleeve assemblies, the two sleeve assemblies are spaced, the outer pipe of a part of the sleeve assemblies is extended, the inner pipe of another part of the sleeve assemblies is extended into the outer pipe, the two parts are supported by the structure to prevent the sleeve from sagging due to heat; the extended outer pipe and the other outer pipe are spaced at a certain distance, and the extended inner pipe and the other inner pipe are spaced at a certain distance to relieve the thermal expansion stress of the sleeve; the two outer pipes are connected through an inner connecting pipe, and the two sleeve assemblies form a steam loop, so that the cooling effect is more continuous and uniform. The soot blower sleeve connecting structure effectively avoids the problem that the supporting member is prone to creep collapse and deformation due to heat, has a simple structure, is safe and reliable, and can also reduce the production manufacturing cost.

The present disclosure relates to an insulating layer for a cable. In one embodiment, the insulating layer comprises a silane crosslinked polyethylene composition comprised of (A) from 90% to 99% by weight of a base bimodal ethylene / C4-C8 alpha-olefin copolymer. The base ethylene / C4-C8 alpha-olefin copolymer has, prior to silane crosslinking, (i) a density of from 0.91 g / cc to 0.93 g / cc, (ii) an I21 / I2 ratio of from 90 to 140, (iii) a Mw / Mn of from 7.0 to 15.0, (iv) an SHI (n0.1 / n100) value of from 5.0 to 30.0, (v) from 0 ppb to 80 ppb boron; and (vi) from 0 ppm to 5 ppm fluorine. The insulating layer further includes (B) 0.5 wt% to 2.0 wt% of a hydrolyzed silane monomer. The insulating layer has a property selected from the group consisting of (1) a surface roughness Ra value of from 50 [mu]-in to 150 [mu]-in, (2) a dissipation factor of less than or equal to 0.0001 radians, (3) a dielectric constant of from 2.0 to less than 2.29, (4) a volume resistivity of from 5.00 * 1016 to 8.00 * 1017, (5) a thermal creep value of from 20% to 30%, and combinations thereof.

The present disclosure is directed to enabling suppression of thermal creep of a support component for a vehicle-mounted radar device. A housing (30) accommodates a radar main body (20) and includes a box-shaped component (40) and a bracket (50). The radar main body (20) is held in the box-shaped component (40). The bracket (50) is protrudingly disposed on the box-shaped component (40) and fixed to a front bumper (100) or an emblem plate (120). The bracket (50) is arranged at a position offset from the center of gravity of the radar main body (20) in the thickness direction thereof. The bracket (50) includes a fixing piece (55) and a first rib (51). The fixing piece (55) has a mating surface opposite to the front bumper (100) or the emblem plate (120) and facing in the same direction as a radiating plane of the radar main body (20). An insertion through-hole (56) is drilled through the fixing piece (55). The first rib (51) is arranged in an upright position on the fastening piece (65).The first rib (51) extends from the box-shaped component (40) to one end of the attachment piece (55) in the vehicle width direction.

The invention relates to the technical field of threads, and provides a high-temperature and high-pressure self-balancing air-tight sealing threaded connection structure which comprises two pipe fittings, the end of each pipe fitting is provided with a first threaded part and a second threaded part, the second threaded parts are arranged on the inner sides of the pipe fittings, the tooth bottoms of the first threaded parts are provided with nested threaded parts which are arranged in a protruding mode, and the nested threaded parts are arranged in the nested threaded parts. The peripheries of the adjacent ends of the two pipe fittings are sleeved with the coupling part, the third threaded parts are located at the two ends of the coupling part respectively and are in threaded connection with the first threaded parts of the pipe fittings, the tooth tops of the third threaded parts are provided with nested threaded grooves in threaded connection with the nested threaded parts, the sealing part is connected to the inner sides of the adjacent ends of the two pipe fittings, and the sealing part is provided with two sealing threaded parts; and the two sealing thread parts are respectively in threaded connection with the second thread parts of the two pipe fittings. The technical problem that in the prior art, thread deformation of a pipeline structure is generated due to thermal creep in the high-temperature and high-pressure environment, and consequently the thread structure is damaged is solved, and the fault rate of the pipeline structure in the high-temperature and high-pressure environment is reduced.

The present application belongs to the technical field of industrial automation control and fault diagnosis, and relates to a lithium iron phosphate rotary kiln sealing failure fault diagnosis method and system. The method comprises: collecting the instantaneous pressure of the sealing cavity, the rotation angle of the cylinder, the surface temperature and the cumulative running time; calculating the rotation modulation leakage index based on the instantaneous pressure and the rotation angle, and extracting the periodic breathing effect characteristics caused by the eccentricity of the cylinder by angle weighting; calculating the thermal creep correction factor based on time and temperature, and quantifying the material aging tendency; and fusing the two to calculate the sealing failure risk index, and accordingly performing graded early warning or shutdown control. The present application can discover early deformation leakage in advance when the sealing pressure has not yet dropped below the threshold, and adaptively corrects the diagnosis standard under the conditions of equipment aging and high temperature, effectively improving the accuracy and timeliness of fault diagnosis.

The invention relates to the technical field of industrial automation control, in particular to a lithium iron phosphate rotary kiln sealing pressure self-adaptive control method and system, and aims to solve the technical problems of sealing gap fluctuation caused by cylinder thermal creep and gravity bending in the prior art and leakage and abrasion caused by feedback control lag in the prior art. The method comprises the following steps: acquiring operation data of the rotary kiln; based on the current effective value and the accumulated operation time, constructing a thermogravity coupling deformation index; constructing a target sealing pressure feedforward model, and calculating a theoretical optimal sealing pressure set value at the current moment; and calculating the control quantity finally output to the execution mechanism. According to the invention, the wear rate of the sealing element can be reduced, and continuous sintering of high-quality materials is guaranteed.

The application provides a gradient crosslinking nuclear material and a preparation method thereof, and relates to the technical field of materials.The material is an insulating material prepared from a binary ethylene-propylene rubber base material and an inorganic flame retardant; the material has a structure with a gradient decrease in crosslinking density from an outer surface to an inner surface along a radial direction, wherein an outer layer region with a thickness ratio of 20%-30% from the outer surface to the inner surface has a first crosslinking rate, the remaining inner layer region has a second crosslinking rate, and the first crosslinking rate is greater than the second crosslinking rate.The method pre-compensates the service life of the outer layer aging through a gradient crosslinking network constructed by controlled variable-energy irradiation.The structure makes the failure times of the inner and outer layers of the cable tend to be dynamically synchronized, can effectively inhibit the interface phase separation and micro-crack growth induced by radiation, and improves the comprehensive fireproof performance and the anti-thermal creep ability.

The invention relates to the technical field of hot melt adhesives, in particular to an oil-resistant and heat-resistant hot melt adhesive for an end cover of an automobile filter and a preparation method of the hot melt adhesive. The hot melt adhesive is mainly prepared from the following components in parts by mass: 1000 parts of copolyamide hot melt adhesive resin, 120-180 parts of maleic anhydride grafted ethylene propylene diene monomer, silanized zinc oxide composite powder preloaded by two types of stearic acid in a specific proportion, zinc stearate and an antioxidant. The preparation method comprises the following steps: preparing the modified rubber and the functional filler, and carrying out melt blending on the modified rubber and the functional filler and resin under specific process conditions. Through the synergistic effect of the reactive compatibilization and the functional filler, the problems that a traditional pouring sealant is prone to thermal creep, swelling and interface adhesion attenuation under long-term soaking of high temperature and hot oil in an engine compartment are solved, and the hot melt adhesive is endowed with excellent high-temperature creep resistance, oil resistance and aging resistance.

The invention discloses a reciprocating compressor air valve capable of adjusting the high-temperature exhaust temperature, and relates to the technical field of compressors. The gap between the valve rod and the valve plate and the adaptive capacity of the air valve to high temperature are adjusted through the memory alloy, the stability of the valve plate in the working process is improved, and the phenomenon of failure of a sealing piece or thermal creep of a cylinder body is avoided. The air valve comprises a valve rod, an exhaust valve seat, a lift limiter, a valve plate and a plurality of reset springs. The exhaust valve seat is fixedly connected with the valve rod; the lift limiter is locked on the valve rod; a memory alloy layer is arranged on the outer circle face of the valve rod. The memory alloy layer adopts one-way memory and gold which expand along with temperature rise; a first annular groove is formed in the upper surface of the exhaust valve seat; a plurality of separating devices are arranged in the first annular groove at equal intervals, and the separating devices can separate the valve plate from the exhaust valve seat after high-temperature deformation. The invention further provides another reciprocating compressor air valve capable of adjusting the high-temperature exhaust temperature.

The invention discloses a high-thermal-stability heat transfer printing release film and a preparation method thereof, and belongs to the technical field of heat transfer printing, a microcrystalline cellulose natural polymer material is introduced, the microcrystalline cellulose natural polymer material is subjected to activation and amination modification and then serves as a functional filler to participate in crosslinking of polyimide, and microcrystalline cellulose is derived from plant fibers and is renewable and degradable; part of traditional petrochemical base filler is replaced, and dependence on non-renewable resources is reduced; meanwhile, active groups such as hydroxyl and amino on the surface can form strong interaction with other components, and a toxic coupling agent does not need to be additionally added; the core raw material of the thermal transfer release film with high thermal stability is modified polyimide, the polyimide has excellent thermal decomposition temperature, and thermal creep of polyimide molecular chains at high temperature is further inhibited through embedding of anhydride modified PET and aminated microcrystalline cellulose.

The invention belongs to the technical field of photovoltaic packaging, and provides a photovoltaic packaging adhesive film and a preparation method and application thereof. The adhesive film is prepared from the following components in parts by weight: 50 to 80 parts of thermoplastic POE (Polyolefin Elastomer) matrix resin, 20 to 50 parts of silane grafted POE resin, 1.5 to 3 parts of UiO-66-NH2MOFs, 2 to 4 parts of hydroxyapatite, 1 to 5 parts of nano SnO2 (at) Ce, 0.1 to 0.5 part of an antioxidant and 0.8 to 1.8 parts of an interface coupling agent. Through cooperation of a UiO-66-NH2MOFs-hydroxyapatite double-chelation system and a nano SnO2 (at) Ce-antioxidant, the adhesive film has low-temperature processability, high interface bonding strength, excellent lead leakage resistance, PID resistance and thermal creep resistance, is especially suitable for packaging a perovskite photovoltaic module, can avoid the problem of perovskite damage caused by high-temperature lamination, and has a good application prospect. And the interface bonding, lead leakage resistance, PID resistance and thermal creep resistance of the perovskite photovoltaic module can be improved, and the use stability of the perovskite photovoltaic module can be improved.