CN116001164A - Device and method for preparing high-performance plastic material - Google Patents
Device and method for preparing high-performance plastic material Download PDFInfo
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- CN116001164A CN116001164A CN202211289068.7A CN202211289068A CN116001164A CN 116001164 A CN116001164 A CN 116001164A CN 202211289068 A CN202211289068 A CN 202211289068A CN 116001164 A CN116001164 A CN 116001164A
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic materials, in particular to a device and a method for preparing a high-performance plastic material; the device comprises an upper heat conducting plate, a lower heat conducting plate and a die; the mold comprises an upper die plate, a lower die plate and a sealing gasket, wherein the sealing gasket is arranged between the upper die plate and the lower die plate in a sealing way, a polymerization chamber is formed among the upper die plate, the sealing gasket and the lower die plate, and at least one upper heat conducting plate is arranged on the top of the upper die plate. The device reduces labor force in assembly and disassembly, effectively solves the problems of overflow, evaporation and leakage of resin monomers, avoids mixing sundries in materials entering a casting area, does not need redesign of a die, and prolongs the service life of the die; the invention can be used for manufacturing high-performance polystyrene plastic sheets, in particular to thin-wall lens type high-performance polystyrene plastic sheets, which can rapidly improve the temperature of a polymerization reaction chamber, improve the production efficiency, and the obtained high-performance plastic material has uniform thickness and greatly reduces the internal stress strain.
Description
Technical Field
The invention relates to the technical field of plastic materials, in particular to a device and a method for preparing a high-performance plastic material.
Background
The high-performance casting type plastic material has a plurality of applications in manufacturing aircraft radomes or waveguide devices, because the material has outstanding strength, good light transmittance and excellent dielectric property, and has outstanding advantages in terms of mechanical strength, transmittance and dielectric loss index.
The conventional production method is to inject a reaction raw material (a flowable resin or a monomer) into a polymerization chamber and then harden by polymerization to obtain a molded polymeric material of a molded article. Air has been used as a heating medium to polymerize and harden raw material so far, and heated air is blown from one side of a mold to the other side using a hot air oven, and in this method, there are two main problems due to low heat conduction efficiency of air: 1. it is difficult to raise the air temperature; 2. it is difficult to sufficiently take away the heat generated by the reaction by using air circulation. Since the low thermal conductivity air flows from one side of the mold to the other side, the mold is first heated by the hot air at the air inlet side, resulting in polymerization of the raw material at the air inlet side first and polymerization at the air outlet side later, and since uniform polymerization temperature and the same polymerization rate cannot be obtained, the thickness of the final molded sheet may be inconsistent and various problems such as stress or strain are generated inside the sheet. To overcome the above problems, it is possible to polymerize a resin monomer raw material in a water bath with water instead of air as a heating medium, in which method the thermal conductivity of water is much higher than that of air, rapid heating polymerization can be performed early in the polymerization process, the polymerization temperature is more uniform, and the polymerization time can be shortened. However, the method has a remarkable disadvantage that the metal mold is easy to generate electrochemical corrosion and rust in a humid environment, and the metal mold is extremely easy to pollute, so that the method is not suitable for preparing high-performance plastic materials, and cannot meet the requirements of the materials on high transparency and low dielectric loss. In addition, when a thin-wall metal mold is used, the problem of deformation easily occurs in the mold due to the self thermal stress of the metal mold material, so that the service life of the mold is greatly shortened; when thick-wall metal molds are used, although the problem that the center part of the mold is deformed or bent due to weight does not occur, the heat of the heat conducting medium is not easily transferred to the inner side of the metal mold due to the large thickness of each mold, so that a large temperature difference exists between the inner surface and the outer surface of the mold, the outer temperature of the mold is high and the inner temperature is low in the early stage of the mold heating process, the metal mold is easily deformed into a bulge corresponding to a unit, after polymerization starts, the inner temperature of the mold is high and the outer temperature is low, the metal mold is easily concavely deformed, and the service life of the mold is greatly reduced due to repeated thermal stress. The current high-performance plastic material with the thickness of 2.0mm is formed by combining glass and a sealing strip into a mold, and the high rigidity of the glass mold is difficult to form other complex shapes through casting molding, and is limited to the preparation of flat plate materials, and when the high-performance plastic material (such as Fresnel lenses and lenticular lenses) with the shape of gas is molded, the mold needs to be redesigned.
Disclosure of Invention
The invention provides a device and a method for preparing a high-performance plastic material, which overcome the defects of the prior art, and can effectively solve the problems that the prior mold has inconsistent thickness of a formed sheet, high transparency and low dielectric loss which cannot meet the material requirement, short service life and the mold is frequently redesigned, and cannot meet the prior requirement.
One of the technical schemes of the invention is realized by the following measures: an apparatus for preparing high-performance plastic material comprises an upper heat-conducting plate, a lower heat-conducting plate and a die; the die comprises an upper die plate, a lower die plate and a sealing gasket, wherein the sealing gasket is arranged between the upper die plate and the lower die plate in a sealing way, a polymerization chamber is formed between the upper die plate, the sealing gasket and the lower die plate, at least one upper heat conducting plate is arranged at the top of the upper die plate, at least one lower heat conducting plate is arranged at the bottom of the lower die plate, a water inlet end and a water outlet end are respectively arranged at the left part and the right part of the rear side of the upper heat conducting plate, at least one U-shaped liquid flow channel communicated with the water inlet end and the water outlet end is arranged in the upper heat conducting plate, a water inlet end and a water outlet end are respectively arranged at the left part and the right part of the rear side of the lower heat conducting plate, and at least one U-shaped liquid flow channel communicated with the water inlet end and the water outlet end is arranged in the lower heat conducting plate.
The following are further optimizations and/or improvements to one of the above-described inventive solutions:
the upper die plate is a stainless steel sheet, and the lower die plate is a stainless steel sheet; the upper heat-conducting plate is a stainless steel heat-conducting plate, and the lower heat-conducting plate is a stainless steel heat-conducting plate.
The stainless steel sheet is SUS304 stainless steel sheet, and the thickness of the stainless steel sheet is 2 mm to 4 mm.
The left end face of the upper heat-conducting plate is provided with a connecting groove, and the right end of the upper heat-conducting plate is integrally fixed with a connecting lug matched with the connecting groove.
The connecting grooves are T-shaped grooves with the outer width and the inner width, and the connecting convex blocks are T-shaped convex blocks with the outer width and the inner width.
The heat conducting liquid is coated between the upper heat conducting plate and the upper mold plate, and the heat conducting liquid is coated between the lower heat conducting plate and the lower mold plate.
The outside of the upper heat-conducting plate is provided with a water storage tank, the water storage tank is provided with a liquid outlet and a liquid return port, the liquid outlet of the water storage tank is respectively connected with the water inlet ends of the upper heat-conducting plate and the lower heat-conducting plate through liquid inlet pipes, and the liquid return port of the water storage tank is respectively connected with the water outlet ends of the upper heat-conducting plate and the lower heat-conducting plate through liquid return pipes.
The second technical scheme of the invention is realized by the following measures: a method for preparing a high performance plastic material, comprising the steps of: the first step, the prepared resin monomer or prepolymer is injected into a polymerization chamber; injecting circulating water through the water inlet ends of the upper heat conducting plate and the lower heat conducting plate to circulate the circulating water in the U-shaped liquid flow channels in the upper heat conducting plate and the lower heat conducting plate; thirdly, regulating the temperature of circulating water to polymerize resin monomer or prepolymer in the polymerization chamber at 50-75 ℃ for 6-20 hours; and fourthly, disassembling the die after polymerization to obtain the high-performance plastic material.
The device reduces the risks of labor force and plate breakage in the assembly and disassembly of the casting areas, can finish the casting process in a short time and mass-produce high-performance plastic material plates with consistent thickness tolerance, ensures that the same resin monomer is provided for each casting area, reduces the problems of overflow, evaporation, leakage and the like of the resin monomer, simultaneously avoids mixing sundries in materials entering the casting areas, does not need redesign of the die, and prolongs the service life of the die; the method can be used for manufacturing high-performance polystyrene plastic sheets, in particular to thin-wall lens type high-performance polystyrene plastic sheets, can rapidly improve the temperature of a polymerization reaction chamber, improves the production efficiency, and greatly reduces the internal stress strain, and the obtained high-performance plastic material has uniform thickness, high transparency and low dielectric loss.
Drawings
Fig. 1 is a schematic diagram of the front view structure of the device of the present invention.
Fig. 2 is a schematic top view of a partial perspective structure of the device of the present invention.
Fig. 3 is a schematic rear view of the upper heat-conducting plate in the device of the present invention.
FIG. 4 is a schematic top view in partial perspective of the upper heat-conducting plate of the device of the present invention.
Fig. 5 is a schematic perspective view of a water storage tank installed in the device of the invention.
Fig. 6 is an assembly view of the device of the present invention.
FIG. 7 is a graph showing the relationship between the set temperature of the heat transfer water in the polymerization process of the present invention and the temperature of the mold cavity actually measured by the thermocouple.
FIG. 8 is a graph of the relationship between the set oven temperature and the actual measured mold cavity temperature of a thermocouple when polymerizing material using conventional hot air oven technology.
FIG. 9 is a graph showing the relationship between the set temperature of the heat-conducting water and the actual measured mold cavity temperature of the thermocouple, using a mixture of 20% methyl methacrylate and oligomer and 80% styrene monomer for polymerization to prepare an 80cm diameter high performance plastic lens material according to the present invention.
The codes in the drawings are respectively: 1 is an upper heat-conducting plate, 2 is a lower heat-conducting plate, 3 is an upper die, 4 is a lower die, 5 is a sealing gasket, 6 is a polymerization chamber, 7 is a water inlet end, 8 is a water outlet end, 9 is a U-shaped liquid flow channel, 10 is a connecting groove, 11 is a connecting lug, 12 is a water storage tank, 13 is a liquid inlet pipe, and 14 is a liquid return pipe.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention. In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described below with reference to examples and figures:
example 1 as shown in fig. 1, 2, 3, 4, 5, 6, the apparatus for preparing high performance plastic material comprises an upper heat conducting plate 1, a lower heat conducting plate 2 and a mold; the die comprises an upper die plate 3, a lower die plate 4 and a sealing gasket 5, wherein the sealing gasket 5 is arranged between the upper die plate 3 and the lower die plate 4 in a sealing way, a polymerization chamber 6 is formed between the upper die plate 3, the sealing gasket 5 and the lower die plate 4, at least one upper heat conducting plate 1 is arranged at the top of the upper die plate 3, at least one lower heat conducting plate 2 is arranged at the bottom of the lower die plate 4, a water inlet end 7 and a water outlet end 8 are respectively arranged at the left part and the right part of the rear side of the upper heat conducting plate 1, at least one U-shaped liquid flow channel 9 communicated with the water inlet end 7 and the water outlet end 8 is arranged in the upper heat conducting plate 1, a water inlet end 7 and a water outlet end 8 are respectively arranged at the left part and the right part of the rear side of the lower heat conducting plate 2, and at least one U-shaped liquid flow channel 9 communicated with the water inlet end 7 and the water outlet end 8 is arranged in the lower heat conducting plate 2.
Further optimisation and/or modification of example 1 above may be carried out according to practical needs:
according to the requirement, the upper die plate 3 is a stainless steel sheet, and the lower die plate 4 is a stainless steel sheet; the upper heat conducting plate 1 is a stainless steel heat conducting plate, and the lower heat conducting plate 2 is a stainless steel heat conducting plate.
The stainless steel sheet was an SUS304 stainless steel sheet having a thickness of 2 mm to 4 mm, as required.
As shown in fig. 1, 2, 3, 4, 5 and 6, a connection groove 10 is provided on the left end surface of the upper heat-conducting plate 1, and a connection protrusion 11 matched with the connection groove 10 is integrally fixed on the right end of the upper heat-conducting plate 1.
As shown in fig. 1, 2, 3, 4, 5 and 6, the connecting groove 10 is a T-shaped groove with a narrow outer side and a wide inner side, and the connecting bump 11 is a T-shaped bump with a wide outer side and a narrow inner side.
A heat transfer fluid is applied between the upper heat transfer plate 1 and the upper die 3 and between the lower heat transfer plate 2 and the lower die 4, as required. The heat conducting liquid may be methyl silicone oil.
As shown in fig. 5, as optimization of the above embodiment, a water storage tank 12 is provided on the outer side of the upper heat conducting plate 1, a liquid outlet and a liquid return port are provided on the water storage tank 12, the liquid outlet of the water storage tank 12 is connected with the water inlet ends 7 on the upper heat conducting plate 1 and the lower heat conducting plate 2 through a liquid inlet pipe 13, and the liquid return port on the water storage tank 12 is connected with the water outlet ends 8 on the upper heat conducting plate 1 and the lower heat conducting plate 2 through a liquid return pipe 14.
Example 2 as shown in figures 1, 2, 3, 4, 5, 6, the process for preparing high performance plastics material is carried out by the following steps: first, the prepared resin monomer or prepolymer is injected into a polymerization chamber 6; secondly, circulating water is injected into the water inlet ends of the upper heat conducting plate 1 and the lower heat conducting plate 2, so that the circulating water circulates in the U-shaped liquid flow channels 9 in the upper heat conducting plate 1 and the lower heat conducting plate 2; thirdly, regulating the temperature of the circulating water to polymerize the resin monomer or prepolymer in the polymerization chamber 6 at 50-75 ℃ for 6-20 hours; and fourthly, disassembling the die after polymerization to obtain the high-performance plastic material. The resin monomer or prepolymer is known and used in common.
Example 3 as shown in fig. 5, the following experiment was performed according to the method of the present invention; the prepolymer taking methyl methacrylate and polymethyl methacrylate oligomer as main components is used as raw materials for casting polymerization, in the polymerization process, at least two heat conducting plates with the size of 350 mm by 500 mm by 3mm are connected with each other to form a large heat conducting plate, and then a die is clamped between the upper heat conducting plate and the lower heat conducting plate to form a polymerization chamber 6. The die consists of an upper die plate 3 and a lower die plate 4, wherein the thickness of the upper die plate 4 and the lower die plate 4 is about 3 millimeters, and the size is 500 multiplied by 700mm. Fig. 7 shows the set temperatures of the heat conductive water in the polymerization steps such as the raw material injection step, the thermal polymerization step after the raw material injection, and the post-curing (hardening) step of the polymerized molded product, and the broken line shows the temperatures of the center of the mold measured by using the thermocouple. In addition, to compare the improved differences in the apparatus, FIG. 8 shows the relationship between the set oven temperature and the actual measured mold cavity temperature of the thermocouple when polymerizing materials using the prior art hot air oven technique. In fig. 8, the solid line indicates the set temperature of the stove, and the broken line indicates the temperature of the central position of the mold measured using a thermocouple. Fig. 7 and 8 show that the polymerization process according to the invention makes it possible to shorten the time required to raise the temperature of the material in the mold cavity to the set value and to improve the quality of the cast molded article, compared with a hot air oven apparatus. To further compare the difference of polymerization processes of different resin monomers, another material was selected for a further experiment, fig. 9 shows a temperature profile actually measured during the polymerization process according to the method of the present invention, and 80cm diameter high performance plastic lens material was polymerized using a mixture of 20% methyl methacrylate and oligomer and 80% styrene monomer, wherein the solid line shows a set temperature of conductive water and the dotted line shows a temperature actually measured by a thermocouple. In this case, since styrene (compared with the methacrylate group) having a relatively slow reaction is contained in a relatively large amount, the polymerization temperature is set to a relatively high value, and the temperature of the mold polymerization chamber 6 is heated in two stages to maintain the temperature uniformity. In this case, it can be seen that the temperature of the polymerization chamber 6 can be heated to the set temperature in a relatively short time.
The invention produces high performance plastic materials by means of apparatus and methods; the main object of the present invention is to provide a device for casting a plurality of high-performance plastic materials simultaneously in a semi-continuous manner, which reduces the risk of labour use and plate breakage in the assembly and disassembly of the casting zone. The apparatus can complete the casting process in a short time and mass-produce high performance plastic material plates having uniform thickness tolerance, and also provides a feeding system for a plurality of casting areas, which ensures the same resin monomer to be supplied to each casting area and reduces problems of overflow, evaporation, leakage and the like of the resin monomer, while avoiding mixing of impurities in the material entering the casting area. Stainless steel sheet or tempered glass is commonly used as the mold surface, preferably SUS304 stainless steel sheet, which has a smooth, easily cleanable surface and many different easily machined dimensions are available. The upper die 3 and the lower die 4 are separated by an elastomeric sealing gasket 5 therebetween for use as a mold edge seal. The apparatus may further comprise a support rail on which the upper and lower heat conducting plates 1 and 2 may be placed and along which the sealing gasket 5 between the upper and lower dies 3 and 4 may be moved, the sealing gasket 5 being fixed to a peripheral gasket support for supporting the sealing gasket 5 in a desired position, the sealing gasket 5 being either independently on a frame of the support rail or fixed to an outer edge of the casting zone. The method comprises the steps of pouring the prepared resin monomer or prepolymer into a pouring area, placing the poured assembly into a curing box for polymerization curing, discharging reaction heat generated in the exothermic polymerization reaction process through air convection or water convection, and preparing a mold in the pouring area, pouring the resin monomer into the mold, and transferring the mold to a proper curing area. The temperature of the casting zone is maintained between 50 and 75 c and the curing time is between 6 and 20 hours, the actual time required depending on the thickness of the sheet and the nature of the catalytic additives added to the monomer feed, and depending on the thickness of the high performance plastic material, it may take more than 20 hours to cure the sheet and polymerize the residual monomer, and the mold is disassembled after polymerization to remove the plastic material. In actual production, the raw materials are injected into a mould and then heated and polymerized to manufacture a high-performance plastic material, and the upper heat conducting plate 1 and the lower heat conducting plate 2 are respectively connected to the two outer surfaces of the mould, so that the internal temperature of the resin to be polymerized is circulated. When the water bath is used for thermal polymerization, the die of the polymerization unit is clamped between two parallel heat conducting plates, each heat conducting plate allows water to flow through, and the arrangement is that the heat conducting water circulates in the two heat conducting plates, so that the temperature of the polymerization chamber 6 can be quickly controlled and the temperature difference in the polymerization chamber 6 can be reduced, and the explosion polymerization caused by the overhigh temperature inside the resin due to the uneven temperature of the hot air oven can not be generated. In addition, the water with strictly controlled temperature flows in the liquid flow channel of the heat conducting plate, the polymerization rate is more uniform, the heat transfer speed is faster, the control precision is higher, the metal mold for polymerization can not directly contact with the water, the metal mold can be prevented from rusting or polluting, and the two thin-wall upper mold piece 3 and the lower mold piece 4 are respectively combined with the pair of heat conducting plates, so that the deformation of the mold is effectively avoided. In the method and apparatus for manufacturing a high performance plastic material according to the present invention, by manufacturing a high performance plastic material having small thickness deviation and small internal stress strain using a pair of detachable metal molds and according to a shell, such design provides considerable flexibility in casting various sized sheets, and sealing gaskets 5 of different sizes can be placed between the opposite upper and lower mold plates 3 and 4 so as to cast different sized plastic materials, while solving the problem that a large amount of manual labor is required for assembling the steel plate and the gasket into a casting area in the conventional plastic casting process, and the sealing clamps generate uneven stress, ultimately resulting in large thickness tolerance of the material. Meanwhile, the invention also reduces the problems of glass breakage, excessive labor force demand, raw material overflow and the like of the traditional manufacturing method, and the design is applicable to polymerization reaction tanks with different sizes, so that materials with various sizes can be manufactured. In summary, in the manufacturing method according to the present invention, allowing the heated fluid to flow through the heat conductor under temperature control conditions makes it possible to control or change the temperature of the polymerization chamber 6 more quickly and uniformly, so that it is possible to manufacture a sheet having less internal stress or strain than the prior art method using a hot blast stove, and in addition, it is possible to manufacture a sheet for a large projection screen.
It is a primary object of the present invention to provide a device and a method for manufacturing high performance polystyrene plastic sheet, especially thin wall lens type high performance polystyrene plastic sheet, by which the temperature of the polymerization reaction zone can be rapidly increased, the production efficiency can be improved, and the thickness of the manufactured plastic material is uniform, and the internal stress strain can be greatly reduced. A method for simultaneously and continuously casting and solidifying a plurality of high-performance plastic materials with uniform thickness and consistent performance by using liquid micromolecular monomer resin raw materials. The same batch of moulds can be designed and produced, and products with different sizes can be produced and prepared through different combination modes.
In summary, the device reduces the risks of labor force and plate breakage in the assembly and disassembly of the casting areas, can finish the casting process in a short time and mass-produce high-performance plastic material plates with consistent thickness tolerance, ensures the supply of the same resin monomer to each casting area, reduces the problems of overflow, evaporation, leakage and the like of the resin monomer, simultaneously avoids mixing sundries in materials entering the casting areas, does not need redesign of the die, and prolongs the service life of the die; the method can be used for manufacturing high-performance polystyrene plastic sheets, in particular to thin-wall lens type high-performance polystyrene plastic sheets, can rapidly improve the temperature of a polymerization reaction chamber, improves the production efficiency, and greatly reduces the internal stress strain, and the obtained high-performance plastic material has uniform thickness, high transparency and low dielectric loss.
The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (10)
1. The device for preparing the high-performance plastic material is characterized by comprising an upper heat-conducting plate, a lower heat-conducting plate and a die; the die comprises an upper die plate, a lower die plate and a sealing gasket, wherein the sealing gasket is arranged between the upper die plate and the lower die plate in a sealing way, a polymerization chamber is formed between the upper die plate, the sealing gasket and the lower die plate, at least one upper heat conducting plate is arranged at the top of the upper die plate, at least one lower heat conducting plate is arranged at the bottom of the lower die plate, a water inlet end and a water outlet end are respectively arranged at the left part and the right part of the rear side of the upper heat conducting plate, at least one U-shaped liquid flow channel communicated with the water inlet end and the water outlet end is arranged in the upper heat conducting plate, a water inlet end and a water outlet end are respectively arranged at the left part and the right part of the rear side of the lower heat conducting plate, and at least one U-shaped liquid flow channel communicated with the water inlet end and the water outlet end is arranged in the lower heat conducting plate.
2. An apparatus for preparing high performance plastic materials as set forth in claim 1, wherein the upper die is a stainless steel sheet and the lower die is a stainless steel sheet; the upper heat-conducting plate is a stainless steel heat-conducting plate, and the lower heat-conducting plate is a stainless steel heat-conducting plate.
3. An apparatus for producing a high-performance plastic material according to claim 2, wherein the stainless steel sheet is SUS304 stainless steel sheet having a thickness of 2 mm to 4 mm.
4. A device for preparing high-performance plastic materials as claimed in claim 1, 2 or 3, wherein the left end surface of the upper heat-conducting plate is provided with a connecting groove, and the right end of the upper heat-conducting plate is integrally fixed with a connecting bump matched with the connecting groove.
5. The apparatus for preparing high-performance plastic material as set forth in claim 4, wherein the connecting groove is a T-shaped groove with an outer narrow and an inner wide, and the connecting protrusion is a T-shaped protrusion with an outer wide and an inner narrow.
6. A device for producing high performance plastic materials according to claim 1 or 2 or 3, characterized in that a heat transfer fluid is applied between the upper heat transfer plate and the upper die and between the lower heat transfer plate and the lower die.
7. An apparatus for preparing a high performance plastic material as set forth in claim 5, wherein a heat transfer fluid is applied between the upper heat transfer plate and the upper mold sheet, and a heat transfer fluid is applied between the lower heat transfer plate and the lower mold sheet.
8. A device for preparing high-performance plastic materials according to claim 1, 2 or 3, characterized in that the outer side of the upper heat-conducting plate is provided with a water storage tank, the water storage tank is provided with a liquid outlet and a liquid return port, the liquid outlet of the water storage tank is respectively connected with the water inlet ends of the upper heat-conducting plate and the lower heat-conducting plate through liquid inlet pipes, and the liquid return port of the water storage tank is respectively connected with the water outlet ends of the upper heat-conducting plate and the lower heat-conducting plate through liquid return pipes.
9. The device for preparing high-performance plastic materials as claimed in claim 7, wherein the outer side of the upper heat-conducting plate is provided with a water storage tank, a liquid outlet and a liquid return port are arranged on the water storage tank, the liquid outlet of the water storage tank is respectively connected with the water inlet ends of the upper heat-conducting plate and the lower heat-conducting plate through liquid inlet pipes, and the liquid return port on the water storage tank is respectively connected with the water outlet ends of the upper heat-conducting plate and the lower heat-conducting plate through liquid return pipes.
10. A method according to claim 1 or 2 or 3 for the preparation of high performance plastics materials, characterized by the following steps: the first step, the prepared resin monomer or prepolymer is injected into a polymerization chamber; injecting circulating water through the water inlet ends of the upper heat conducting plate and the lower heat conducting plate to circulate the circulating water in the U-shaped liquid flow channels in the upper heat conducting plate and the lower heat conducting plate; thirdly, regulating the temperature of circulating water to polymerize resin monomer or prepolymer in the polymerization chamber at 50-75 ℃ for 6-20 hours; and fourthly, disassembling the die after polymerization to obtain the high-performance plastic material.
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| CN202211289068.7A CN116001164A (en) | 2022-10-20 | 2022-10-20 | Device and method for preparing high-performance plastic material |
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| CN202211289068.7A CN116001164A (en) | 2022-10-20 | 2022-10-20 | Device and method for preparing high-performance plastic material |
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