CN212636805U - Heat-resistant and temperature-resistant elastic rubber mat made of copper-clad plate laminated composite material - Google Patents
Heat-resistant and temperature-resistant elastic rubber mat made of copper-clad plate laminated composite material Download PDFInfo
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- CN212636805U CN212636805U CN202021704024.2U CN202021704024U CN212636805U CN 212636805 U CN212636805 U CN 212636805U CN 202021704024 U CN202021704024 U CN 202021704024U CN 212636805 U CN212636805 U CN 212636805U
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Abstract
The invention provides a heat-resistant temperature-resistant elastic rubber mat of a copper-clad plate laminated composite material, which comprises at least one surface layer and at least one middle layer. Each surface layer comprises a first base material and a protective layer, and the protective layer is positioned on the surface of the first base material. Each middle layer comprises a second base material and a rubber layer, the rubber layer is combined with the second base material through a calendaring and frictioning process, and the surface layer and the middle layer are combined through a vulcanizing process.
Description
Technical Field
The utility model relates to a copper-clad plate field of making especially relates to a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, and it replaces traditional kraft paper, practices thrift a large amount of paper gasket materials.
Background
With the progress of the times and the rapid development of electronic technology, the continuous progress and development of the technical field of printed circuit boards are promoted. Copper-clad plates are extremely important basic materials of printed circuit boards, and play an indispensable role in the field of electronic industry nowadays. In other words, the copper clad laminate cannot be processed in the PCB. The use specific gravity of the copper-clad plate multilayer plate is increased year by year. An important process in the manufacture of copper clad laminates is lamination, wherein control of the lamination quality is increasingly important in the manufacture of multilayer laminates. In other words, the lamination quality of the copper clad laminate further affects the quality of the printed circuit board.
During lamination of the copper clad laminate, kraft paper is mostly adopted as heat transfer buffer. Kraft paper is placed between a hot plate and a steel plate of a laminating machine to moderate the temperature rise curve closest to bulk materials, so that the temperature difference of each layer of board material among a plurality of substrates or multilayer boards to be laminated is pulled as close as possible, and the common specification is 90 pounds to 150 pounds. However, the kraft paper has been broken at high temperature and high pressure during pressing, and thus has no toughness and is difficult to function, and therefore, it is necessary to replace the kraft paper with new one.
Further, in the traditional production of copper clad laminate, kraft paper is used as a gasket material, and the use is disposable. The use of kraft paper in large quantities is not beneficial to environmental protection and sustainable development. In addition, products on the market are also prepared by adopting a dip-coating process, using glass fiber mesh cloth, gluing by a dip-coating method, drying in the air or by drying in the air, and pressing. In the process of dip coating, a large amount of solvent is used, so that the production cost is increased, and the environment is not protected.
Disclosure of Invention
The utility model has the advantages of it provides a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, wherein adopts the specific high temperature resistant thin layer rubber who forms of preparing, through a calendering frictioning process method, this method is "dry process" technology, in this kind of technology in the production link, can avoid using in a large number of solvents to reduce cost and reduce environmental pollution.
The utility model has the advantages of it provides a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, wherein with calendering technology at a glass fiber net cloth coating rubber, makes to form one and hinders heat temperature resistant elasticity cushion, and it is used for PCB multiply wood lamination preparation.
One advantage of the present invention is that it provides a heat resistant and temperature resistant elastic cushion for copper clad laminate composites, wherein the glass fiber mesh cloth is calendered to wipe a heat resistant thin layer rubber by a "dry process" process. Compared with a solvent method, the method saves the cost of the solvent and saves the electric energy for preparing the glue. In other words, the production process of the present invention is an environmental protection process. The use of the finished product instead of the traditional kraft paper is also an environment-friendly process. Particularly, the calendering frictioning has the characteristics of small production space and flexible production conversion, and can greatly improve the production efficiency.
The utility model has the advantages of it provides a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, and wherein final product has inherited the heat resistance of paper material, the little elasticity under the high pressure condition as the substitute material who replaces the kraft paper in practical use. Meanwhile, the utility model has the function of repeated use. The formula and the product size can be adjusted according to different customers, and the product can be produced and customized for the customers.
The utility model has the advantages of it provides a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, wherein hinder used adhesive tape of heat temperature resistant elasticity cushion and adopted ultra-thin calendering frictioning method, has avoided the use of a large amount of organic solvents, environmental protection safety.
The utility model has the advantages of it provides a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, wherein vulcanizes the new technology that the processing procedure adopted continuous production to vulcanization temperature, pressure distribution are even, have improved the homogeneity that the product is withstand voltage, temperature rise greatly, have avoided the bubble, the layering, the emergence of internal defect such as fracture.
The utility model has the advantages of it provides a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, wherein hinder heat temperature resistant elasticity cushion and surpass 2000 hours in testing 220 degrees 5MPa environment, surpass 500 use cycles in the in-service use to replace traditional kraft paper, practice thrift a large amount of paper gasket materials. Particularly, the product meets the requirement of environmental protection ban of European Union.
The utility model has the advantages of it provides a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, wherein the elasticity cushion is the raw and other materials that are used in the manufacturing copper-clad plate, is the pressfitting pad that uses when manufacturing the copper-clad plate.
Additional advantages and features of the present invention will be set forth in part in the detailed description which follows and in part will be obvious from the description, or may be learned by practice of the invention.
According to the utility model discloses, can realize aforementioned purpose and other purposes and advantage the utility model relates to a copper-clad plate lamination combined material hinders heat temperature resistant elasticity cushion, include:
at least one surface layer, wherein each surface layer comprises a first base material and a protective layer, and the protective layer is positioned on the surface of the first base material; and
at least one middle layer, wherein each middle layer comprises a second base material and a rubber layer, the rubber layer is combined with the second base material through a calendaring frictioning process, and the surface layer and the middle layer are combined through a vulcanizing process.
According to the utility model discloses an embodiment, the protective layer includes PTFE powder, pigment, waterborne teflon coating, thickener, curing agent, wherein the part by mass is as follows respectively:
PTFE powder: 30
Pigment: 4
Water-based Teflon coating: 100
Thickening agent: 10
Curing agent: 6.
according to the utility model discloses an embodiment, the protective layer includes rubber, heat-resistant material, reinforcement material, cross-linking agent, colouring material, wherein the part by mass is as follows respectively:
rubber: 100
Heat-resistant material: 15-25
Reinforcing material: 15-35
A crosslinking agent: 2-6
Pigment: 1-3.
According to the utility model discloses an embodiment, the material on rubber layer includes rubber, heat-resisting filler, expanded material, cross-linking agent, acid absorbent, mobile agent, wherein the part by mass is as follows respectively:
rubber: 100
Reinforcing material: 10-15
Heat-resistant filler: 15-30
Foaming material: 5-30
A crosslinking agent: 3-6
Acid-absorbing agent: 5-10
A flow agent: 1-3.
According to an embodiment of the invention, the first substrate and the second substrate are implemented as a fiberglass mesh.
According to one embodiment of the invention, the cured thickness of the protective layer is 0.08-0.10 mm.
According to an embodiment of the invention, the rubber system is selected from the group consisting of fluororubbers and silicone rubbers.
According to one embodiment of the present invention, the heat resistant filler is selected from the group consisting of precipitated barium sulfate and vermiculite.
According to the utility model discloses an embodiment, the reinforcement material is implemented for precipitating white carbon black.
According to one embodiment of the invention, the cross-linking agent is selected from the group consisting of bisphenol AF/BPP, peroxide BIPB, bis-tetra-, bis-penta-and HVA-2, TAIC.
According to one embodiment of the present invention, the colorant is selected from the group consisting of carbon black, color masterbatch, and titanium dioxide.
According to an embodiment of the invention, the foamed material is embodied as expandable microbeads.
According to one embodiment of the present invention, the acid scavenger is selected from the group consisting of calcium hydroxide, magnesium oxide and zinc oxide.
According to one embodiment of the present invention, the flowing agent is selected from the group consisting of fluoro wax, erucamide, palm wax and manicure.
According to an embodiment of the present invention, at least one of the middle layers is disposed between two of the surface layers for performing a multi-layer vulcanization process, wherein the protective layers of the surface layers are respectively disposed outside.
According to an embodiment of the present invention, the protective layer, the first substrate, the at least one intermediate layer, the first substrate and the protective layer are integrated by vulcanization in a laminated manner.
According to the utility model discloses, can realize aforementioned purpose and other purposes and advantage the utility model relates to a copper-clad plate lamination combined material hinders manufacturing method of heat resistance temperature resistant elasticity cushion, including following step:
(A) forming a surface layer by a coating process;
(B) forming a rubber layer by a rubber refining process;
(C) combining the rubber layer with a second substrate to form a middle layer by a calendering and frictioning process;
(D) combining the surface layer and the middle layer through a vulcanization process; and
(E) the heat-resistant and temperature-resistant elastic rubber mat is formed through a cutting and edge sealing process.
According to one embodiment of the present invention, in step (A), the coating process comprises forming a protective layer on a first substrate, wherein the protective layer is a Teflon coating, the protective layer has a curing thickness of 0.08-0.10mm, a curing temperature of 250-.
According to the utility model discloses an implement method, wherein in step (B), the rubber refining process includes high temperature resistant batching process, high temperature resistant mixing process, high temperature resistant open mixing process, high temperature resistant remixing process, wherein in the high temperature resistant batching process, cut rubber according to certain proportion, weigh thermal-resistant filler, foaming material, mobile agent into a batch bag with certain proportion, put acid absorbent with certain proportion into the batch bag, put cross-linking agent with certain proportion into a container, wherein in the high temperature resistant mixing process, cut rubber is thrown into the banburying chamber and kneaded, when the temperature rises to 50-60 ℃, the thermal-resistant filler, foaming material, mobile agent and partial acid absorbent loaded in the batch bag are thrown into again and kneaded under pressure, when the temperature rises to 80, a hammer is lifted, the banburying chamber is cleaned, acid absorbent is thrown again, and lifting a hammer when the temperature rises to 90-95 ℃, cleaning the mixing chamber, adding a cross-linking agent, dropping the hammer for 30 seconds to form the mixed rubber, wherein in the high-temperature resistant open mixing process, the mixed rubber is put into an open mixer, the roller spacing is adjusted to 0.5-1mm, the mixed rubber passes through three rollers and is wrapped by a triangular bag for three times, the roller spacing is adjusted to 5-10mm, and a rubber sheet is formed, wherein in the high-temperature resistant return mixing process, the rubber sheet is added into an internal mixer, and is added into the open mixer after internal mixing, so that the rubber layer is formed.
According to the utility model discloses an implement method, wherein in step (C), set up the upper and middle lower roller temperature of a calender to 70-85 ℃, adjust the calendering roller distance to a required glue film thickness, set up a feed mill roller temperature at 55-65 ℃ to the stable feed, will the second substrate is guided the calender, will the rubber layer evenly wipes into in the second substrate face, rubs thickness according to the technological requirement and is 0.1-0.2mm, width 1420mm, thickness range 0.05 mm.
According to the present invention, in step (D), at least one of the middle layers is located between two of the surface layers, and the protective layer of the surface layer is an outer layer.
According to the utility model discloses a method of implementing, wherein in step (E), hinder hot temperature resistant elastic rubber mat in the curing box, carry out 200 degrees 6 hours solidification.
According to the utility model discloses, can realize aforementioned purpose and other purposes and advantage the utility model relates to a copper-clad plate lamination combined material hinders manufacturing method of heat resistance temperature resistant elasticity cushion, including following step:
(a) a protective layer refining process is used for forming a protective layer of a surface layer;
(b) a rubber refining process forms a rubber layer;
(c) combining the rubber layer with a second substrate to form a middle layer by a calendering and frictioning process;
(d) combining the protective layer, a first substrate and the middle layer through a vulcanization process; and
(e) the heat-resistant and temperature-resistant elastic rubber mat is formed through a cutting and edge sealing process.
According to the present invention, in the step (d), a vulcanizing machine is introduced and integrated by vulcanizing in a laminated manner a protective layer, a first substrate, at least a middle layer, a first substrate and a protective layer.
Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.
These and other objects, features and advantages of the present invention will be more fully apparent from the following detailed description, the accompanying drawings and the detailed description.
Drawings
Fig. 1A to fig. 1B are schematic structural views of a heat-resistant and temperature-resistant elastic cushion made of a copper-clad laminate composite according to a preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in fig. 1A to fig. 1B, the present invention provides a heat-resistant elastic cushion and a method for manufacturing the same, which is made of a copper-clad laminate composite according to a first preferred embodiment of the present invention. The heat-resistant temperature-resistant elastic rubber mat 1 comprises at least one surface layer 10 and at least one middle layer 20. The surface layer 10 and the middle layer 20 are vulcanized to form the heat-resistant and temperature-resistant elastic rubber mat 1. It is worth mentioning that the middle layer 20 is provided in accordance with the required number of layers. In other words, the heat-resistant and temperature-resistant elastic gasket of the copper-clad plate laminated composite material is formed by compounding the surface layer 10 and the middle layer 20 in a multi-layer manner. Particularly, the heat-resistant and temperature-resistant elastic rubber mat 1 is composed of two surface layers 10 and at least one middle layer 20, wherein the middle layer 20 is arranged between the two surface layers 10. In addition, the surface layer 10 includes a first substrate 11 and a protective layer 12. The protective layer 12 is applied to the first substrate 11 through an application process. The middle layer 20 includes a second substrate 21 and a rubber layer 22. The rubber layer 22 is bonded to the second substrate 21 by a calendering and frictioning process. It can be understood that the heat-resistant and temperature-resistant elastic cushion 1 has the structure of the protective layer 12, the first base material 11, the middle layer 20, the first base material 11, and the protective layer 12, wherein the number of layers or the thickness of the middle layer 20 is adjusted according to actual requirements. In addition, as shown in fig. 1B, the heat-resistant elastic cushion 1 can also be combined by one surface layer 10 and at least one middle layer 20, which is not a limitation of the present invention.
The first substrate 11 of the top layer 10 is embodied as a fiberglass scrim. The protective layer 12 comprises PTFE powder, pigment, water-based Teflon paint, thickening agent and curing agent. It is worth mentioning that the mass parts of the protective layer 12 are respectively as follows:
PTFE powder: 30
Pigment: 4
Water-based Teflon coating: 100
Thickening agent: 10
Curing agent: 6
Further, in the coating process, the protective layer 12 is implemented by a water-based teflon coating, wherein the curing thickness of the protective layer 12 is 0.08-0.10mm, and the curing temperature of the protective layer 12 is 160 ℃ for 10-15 minutes.
The second substrate 21 of the middle layer 20 is implemented as a fiberglass mesh. The rubber layer 22 is formed through a rubber refining process. The rubber layer 22 is made of rubber, heat-resistant filler, foaming material, cross-linking agent, acid absorbent and flowing agent, wherein the mass parts are respectively as follows:
rubber: 100
Heat-resistant filler: 15-30
Reinforcing material: 10-15
Foaming material: 5-30
A crosslinking agent: 3-6
Acid-absorbing agent: 5-10
A flow agent: 1-3
The rubber refining process comprises a high-temperature-resistant batching process, a high-temperature-resistant mixing process, a high-temperature-resistant open mixing process and a high-temperature-resistant remixing process.
In the high-temperature resistant batching process, rubber is cut according to a certain proportion, the heat-resistant filler, the foaming material and the flowing agent are weighed and put into a feeding bag according to a certain proportion, the acid absorbent is put into the feeding bag according to a certain proportion, and the cross-linking agent is weighed and put into a container according to a certain proportion.
In the high-temperature resistant mixing process, the cut rubber is put into an internal mixing chamber and dropped into a hammer, when the temperature rises to a first preset temperature, a feeding bag filled with heat-resistant filler, foaming material, flowing agent and part of acid-absorbing agent is put into the internal mixing chamber, when the temperature rises to a second preset temperature, the rest acid-absorbing agent is put into the internal mixing chamber, when the temperature rises to a third preset temperature, cross-linking agent is put into the internal mixing chamber, and then the mixture is dropped into the internal mixing chamber to form a mixed rubber. It is worth mentioning that the first preset temperature is implemented at 50-60 degrees; the second preset temperature is implemented at 80 degrees; the third preset temperature is implemented at 90-95 degrees. Further, using 35 liters of the internal mixer, setting the air weight pressure of the internal mixer to 0.6MPa and the cooling water temperature to be less than 30 ℃, feeding rubber into the internal mixing chamber and dropping the rubber, and when the temperature rises to 50-60 ℃, feeding a feeding bag filled with a heat-resistant filler, a foaming material, a flowing agent and a part of an acid absorbing agent. And lifting a hammer when the temperature rises to 80 ℃, cleaning the mixing chamber, adding the rest acid-absorbing agent, lifting the hammer when the temperature rises to 90-95 ℃, cleaning the mixing chamber, adding the cross-linking agent, and dropping the hammer for 30 seconds to form the rubber compound.
In the high-temperature resistant open mixing process, the rubber compound is put into an open mixer to form a rubber sheet. Further, the rubber compound is quickly placed in an open mill, the temperature of cooling water is set to be less than 30 ℃, and the roller distance is adjusted to be 0.5-1mm through two thin passes, so that the rubber compound is quickly cooled. And (5) performing three times of triangular bag making, and adjusting the roller distance to 5-10mm after passing through three rollers to form the film. The film is thick
In the high temperature resistant remill process, the rubber sheet is fed into an internal mixer, and then fed into the open mill after internal mixing, so as to form the rubber layer 22. More specifically, the rubber sheet is put into an internal mixer, and after 40 to 80 seconds, the hammer is lifted and cleaned once, the temperature is actually measured and increased to 70 to 80 ℃ for blanking, and after internal mixing, the rubber sheet is put into the open mill again to form the rubber layer 22.
In the calendering and frictioning process, the rubber layer 22 is combined with the second substrate 21, and the finished product is wound into a coil. In other words, the rubber layer 22 is bonded to the fiberglass mesh fabric to form the middle layer 20 in a roll. Further, setting the temperature of a calendering cloth drying roller to be 95 ℃, the temperature of an upper roller, a middle roller and a lower roller to be 70-85 ℃, adjusting the distance between the calendering rollers to the required thickness of the glue layer, such as 0.1-0.18mm determined according to the process requirements, and the linear speed, guiding the second base material 21 through the calender, uniformly rubbing the rubber layer 22 into the surface of the second base material 21, and coiling and collecting the cloth into a coil.
In the vulcanization process, the surface layer 10 and the middle layer 20 are respectively introduced into a vulcanizing machine for vulcanization and pressing, and after cooling, the heat-resistant and temperature-resistant elastic rubber mat 1 is formed through a cutting and edge sealing process. Further, the surface layer 10 and the middle layer 20 are vulcanized and pressed, then moved to a cooling rack for cooling, and then placed into a cutting bed for cutting into a preset size. And then, coating edge sealing glue on the cut edges of the finished product, and then putting the finished product into a curing box for curing. Still further, the pressure of the vulcanizer is 30-45kg/cm2, the vulcanizing pressing time is 25-30Min, and the temperature is 160-180 ℃. And (5) curing the edge-sealed finished product in the curing box at 200 ℃ for 6 hours.
It is worth mentioning that in the rubber refining process, the rubber is selected from the group consisting of fluororubbers and silicone rubbers, and further, the fluororubber is implemented as a binary structure or ternary structure fluororubber. The silicone rubber is implemented as methyl vinyl silicone rubber. The heat resistant filler is selected from the group consisting of precipitated barium sulfate, mica and vermiculite. The reinforcing material is implemented by precipitated silica. The foamed material is embodied as expandable microspheres. The cross-linking agent is selected from the group consisting of bisphenol AF/BPP, peroxide BIPB, bis-tetra-penta, bis-di-penta, HVA-2, and TAIC. The acid acceptor is selected from the group consisting of calcium hydroxide, magnesium oxide and zinc oxide. In particular, the magnesium oxide is selected from high-activity magnesium oxide. The calcium hydroxide is superfine calcium hydroxide. The flow agent is selected from the group consisting of a fluoro wax, erucamide, carnauba wax, and manicure.
Further, according to the mass portions, the high-performance rubber comprises 85 parts of fluororubber, 15 parts of silicon rubber, 10 parts of precipitated white carbon black, 10 parts of vermiculite, 5 parts of precipitated barium sulfate, 10 parts of expandable microspheres, 2 parts of bisphenol AF, 1 part of BPP, 1.5 parts of peroxide dipenta-di-penta, 21.5 parts of HVA, 3 parts of magnesium oxide, 6 parts of calcium oxide, 1 part of fluorine wax and 1.5 parts of erucamide.
The embodiment also provides a manufacturing method of the heat-resistant temperature-resistant elastic rubber mat of the copper-clad plate laminated composite material, which comprises the following steps:
(A) forming a surface layer 10 by a coating process;
(B) forming a rubber layer 22 by a rubber refining process;
(C) combining the rubber layer 22 with a second substrate 21 to form a middle layer 20 by a calendering and frictioning process;
(D) combining the surface layer 10 and the middle layer 20 through a vulcanization process; and
(E) the heat-resistant and temperature-resistant elastic rubber mat 1 is formed through a cutting and edge sealing process.
In step (a), the coating process includes forming a protective layer 12 on a first substrate 11, wherein the protective layer 12 is implemented as a water-based teflon paint. The curing thickness of the protective layer 12 is 0.08-0.10mm, the curing temperature is 250-360 ℃ and the curing time is 15-30 minutes.
In the step (A), the surface layer 10 is coated with fluorine coating after being subjected to surface treatment by a silane coupling agent, and is baked for 15-30 minutes by an oven at 360 ℃ for curing.
In step (a), the first substrate is implemented as a fiberglass mesh cloth.
In the step (B), the rubber refining process comprises a high-temperature resistant batching process, a high-temperature resistant mixing process, a high-temperature resistant open mixing process and a high-temperature resistant remixing process.
In the high-temperature resistant batching process, rubber is cut according to a certain proportion, the heat-resistant filler, the foaming material and the flowing agent are weighed and placed into a feeding bag according to a certain proportion, the acid absorbent is placed into the feeding bag according to a certain proportion, and the cross-linking agent is placed into a container according to a certain proportion.
In the high-temperature resistant mixing process, the cut rubber is put into the mixing chamber to be kneaded, when the temperature rises to a first preset temperature, the heat-resistant filler, the foaming material, the flowing agent and part of the acid-absorbing agent which are arranged in the feeding bag are put into the mixing chamber to be kneaded under pressure, when the temperature rises to a second preset temperature, the rest acid-absorbing agent is put into the mixing chamber, when the temperature rises to a third preset temperature again, the cross-linking agent is put into the mixing chamber again, and then the mixing rubber is formed after dropping. The first preset temperature is implemented at 50-60 degrees; the second preset temperature is implemented at 80 degrees; the third preset temperature is implemented at 90-95 degrees. Further, using 35 liters of the internal mixer, setting the air weight pressure of the internal mixer to 0.6MPa and the cooling water temperature to less than 30 ℃, feeding rubber into the internal mixing chamber and kneading, and when the temperature rises to 50 to 60 ℃, feeding the heat-resistant filler, the foaming material, the flow agent and the partial acid-absorbing agent charged in the feeding bag and kneading under pressure. And lifting a hammer when the temperature rises to 80 ℃, cleaning the mixing chamber, adding the rest acid-absorbing agent, lifting the hammer when the temperature rises to 90-95 ℃, cleaning the mixing chamber, adding the cross-linking agent, and dropping the hammer for 30 seconds to form the rubber compound.
In the high-temperature resistant open mixing process, the rubber compound is put into an open mixer, the roller spacing is adjusted to be 0.5-1mm, the rubber compound passes through a roller for three times and is wrapped by a triangular bag for three times, and the roller spacing is adjusted to be 5-10mm to form a rubber sheet. The film is a thick sheet.
In the high temperature resistant remill process, the rubber sheet is put into an internal mixer, and then put into the open mill after internal mixing, so as to form the rubber layer 22. More specifically, the rubber sheet is put into an internal mixer, and after 40 to 80 seconds, the hammer is lifted and cleaned once, the temperature is actually measured and increased to 70 to 80 ℃ for blanking, and after internal mixing, the rubber sheet is put into the open mill again to form the rubber layer 22.
In the step (C), in the calendering and frictioning process, the upper roller, the middle roller and the lower roller of a calender are set to 70-85 ℃, the calender roller distance is adjusted to the required thickness of a glue layer, and the roller temperature of a feeding open mill is set to 55-65 ℃ to stably feed. The thickness of the adhesive layer is 0.1-0.18mm, and can be determined according to the process requirements. And guiding the second base material 21 through the calender, uniformly wiping the rubber layer 22 into the surface of the second base material 21, and coiling and collecting the fabric into a coil.
In the step (D), in the vulcanization process, the two surface layers 10 and the at least one middle layer 20 are respectively introduced into a vulcanizing machine, the two surface layers 10 are respectively an upper layer and a lower layer, and the middle layer 20 is located between the two surface layers 10. The middle layer 20 is laminated with the middle layer 20 by calculating the required material thickness. And carrying out flat plate continuous vulcanization by the vulcanizing machine, wherein the pressure of the vulcanizing machine is 30-45kg/cm2, the vulcanizing pressing time is 15-30Min, and the temperature is 160-180 ℃.
And (E) curing the heat-resistant and temperature-resistant elastic rubber mat 1 subjected to edge sealing in the cutting and edge sealing process at 200 ℃ for 6 hours in the curing box.
As shown in fig. 1 and fig. 1B, a copper clad laminate composite heat-resistant elastic cushion and a method for manufacturing the same according to a second preferred embodiment of the present invention are provided. The heat-resistant temperature-resistant elastic rubber mat 1 comprises at least one surface layer 10 and at least one middle layer 20. The surface layer 10 and the middle layer 20 are vulcanized to form the heat-resistant and temperature-resistant elastic rubber mat 1. It is worth mentioning that the middle layer 20 is provided in accordance with the required number of layers. In other words, the heat-resistant and temperature-resistant elastic gasket of the copper-clad plate laminated composite material is formed by compounding the surface layer 10 and the middle layer 20 in a multi-layer manner. Specifically, the heat-resistant elastic cushion 1 is composed of two surface layers 10 and at least one middle layer 20, wherein the middle layer 20 is disposed between the two surface layers 10, as shown in fig. 1A. In addition, the surface layer 10 includes a first substrate 11 and a protective layer 12. The middle layer 20 includes a second substrate 21 and a rubber layer 22. The rubber layer 22 is bonded to the second substrate 21 by a calendering and frictioning process. During the vulcanization process, the first substrate 11, the protective layer 12 and the middle layer 20 are bonded together, wherein the protective layer 12 is located on the surface of the first substrate 11. It can be understood that the heat-resistant and temperature-resistant elastic cushion 1 has the structure of the protective layer 12, the first base material 11, the middle layer 20, the first base material 11, and the protective layer 12, wherein the number of layers or the thickness of the middle layer 20 is adjusted according to actual requirements. In addition, as shown in fig. 1B, the heat-resistant elastic cushion 1 can also be combined by one surface layer 10 and at least one middle layer 20, which is not a limitation of the present invention.
The first substrate 11 of the top layer 10 is embodied as a fiberglass scrim. The protective layer 12 comprises rubber, a heat-resistant material, a reinforcing material, a cross-linking agent and a pigment. It is worth mentioning that the mass parts of the protective layer 12 are respectively as follows:
rubber: 100
Heat-resistant material: 15-25
Reinforcing material: 15-35
A crosslinking agent: 2-6
Pigment: 1-3
The second substrate 21 of the middle layer 20 is implemented as a fiberglass mesh. The rubber layer 22 is formed through a rubber refining process. The rubber layer 22 is made of rubber, heat-resistant filler, foaming material, cross-linking agent, acid absorbent and flowing agent, wherein the mass parts are respectively as follows:
rubber: 100
Reinforcing material: 10-15
Heat-resistant filler: 15-30
Foaming material: 5-30
A crosslinking agent: 3-6
Acid-absorbing agent: 5-10
A flow agent: 1-3
The rubber refining process comprises a high-temperature-resistant batching process, a high-temperature-resistant mixing process, a high-temperature-resistant open mixing process and a high-temperature-resistant remixing process.
In the high-temperature resistant batching process, rubber is cut according to a certain proportion, the heat-resistant filler, the foaming material and the flowing agent are weighed and put into a feeding bag according to a certain proportion, the acid absorbent is put into the feeding bag according to a certain proportion, and the cross-linking agent is weighed and put into a container according to a certain proportion.
In the high-temperature resistant mixing process, the cut rubber is put into an internal mixing chamber and dropped into a hammer, when the temperature rises to a first preset temperature, a feeding bag filled with heat-resistant filler, foaming material, flowing agent and part of acid-absorbing agent is put into the internal mixing chamber, when the temperature rises to a second preset temperature, the rest acid-absorbing agent is put into the internal mixing chamber, when the temperature rises to a third preset temperature, cross-linking agent is put into the internal mixing chamber, and then the mixture is dropped into the internal mixing chamber to form a mixed rubber. It is worth mentioning that the first preset temperature is implemented at 50-60 degrees; the second preset temperature is implemented at 80 degrees; the third preset temperature is implemented at 90-95 degrees. Further, using 35 liters of the internal mixer, setting the air weight pressure of the internal mixer to 0.6MPa and the cooling water temperature to be less than 30 ℃, feeding rubber into the internal mixing chamber and dropping the rubber, and when the temperature rises to 50-60 ℃, feeding a feeding bag filled with a heat-resistant filler, a foaming material, a flowing agent and a part of an acid absorbing agent. And lifting a hammer when the temperature rises to 80 ℃, cleaning the mixing chamber, adding the rest acid-absorbing agent, lifting the hammer when the temperature rises to 90-95 ℃, cleaning the mixing chamber, adding the cross-linking agent, and dropping the hammer for 30 seconds to form the rubber compound.
In the high-temperature resistant open mixing process, the rubber compound is put into an open mixer to form a rubber sheet. Further, a 16-inch open mill is adopted as the open mill, the temperature of cooling water is set to be less than 30 ℃, the rubber compound is rapidly put into the open mill, and is subjected to twice thin passing, and the roller spacing is 0.5-1mm, so that the rubber compound is rapidly cooled. And (5) performing three times of triangular bag making, passing through a roller for three times, adjusting the roller distance to 5-10mm, and discharging the film.
In the high temperature resistant remill process, the rubber sheet is fed into an internal mixer, and then fed into the open mill after internal mixing, so as to form the rubber layer 22. More specifically, the rubber sheet is put into an internal mixer, and after 40 to 80 seconds, the hammer is lifted and cleaned once, the temperature is actually measured and increased to 70 to 80 ℃ for blanking, and after internal mixing, the rubber sheet is put into the open mill again to form the rubber layer 22.
In the calendering and frictioning process, the rubber layer 22 is combined with the second substrate 21, and the finished product is wound into a coil. In other words, the rubber layer 22 is bonded to the fiberglass mesh fabric to form the middle layer 20 in a roll. Further, setting the temperature of a calendering cloth drying roller to be 95 ℃, the temperature of an upper roller, a middle roller and a lower roller to be 70-85 ℃, adjusting the distance between the calendering rollers to the required thickness of the glue layer, such as 0.1-0.18mm determined according to the process requirements, and the linear speed, guiding the second base material 21 through the calender, uniformly rubbing the rubber layer 22 into the surface of the second base material 21, and coiling and collecting the cloth into a coil.
Specifically, in the present embodiment, the protection layer 12 is formed into a plastic film through a protection layer refining process. It should be noted that the protective layer 12 formed by the protective layer refining process is also stored in a roll shape for subsequent use. The refining process of the protective layer is the same as the refining process of the rubber.
In the vulcanization process, the surface layer 10 and the middle layer 20 are respectively introduced into a vulcanizing machine for vulcanization and pressing, and after cooling, the heat-resistant and temperature-resistant elastic rubber mat 1 is formed by cutting and edge sealing. Further, the protective layer 12, the first base material 11 and the middle layer 20 of the surface layer 10 are vulcanized and pressed, then moved to a cooling rack for cooling, and then placed into a cutting bed for cutting into a predetermined size. And then, coating edge sealing glue on the cut edges of the finished product, and then putting the finished product into a curing box for curing. That is, in this embodiment, the protective layer 12, the first substrate 11, at least one intermediate layer 20, the first substrate 11 and the protective layer 12 are respectively introduced into the vulcanizer. Specifically, the vulcanizer had a pressure of 35kg/cm2, a vulcanization press time of 30Min and a temperature of 160 ℃. And sealing the edge of the heat-resistant temperature-resistant elastic rubber mat 1, putting the heat-resistant temperature-resistant elastic rubber mat in the curing box, and curing for 6 hours at 200 ℃.
It should be noted that in the rubber refining process of the middle layer 20, the rubber is selected from the group consisting of fluororubbers and silicone rubbers, and further, the fluororubbers are implemented as binary-structure or ternary-structure fluororubbers. The silicone rubber is implemented as methyl vinyl silicone rubber. The heat resistant filler is selected from the group consisting of precipitated barium sulfate and vermiculite. The reinforcing material is implemented by precipitated silica. The foamed material is embodied as expandable microspheres. The cross-linking agent is selected from the group consisting of bisphenol AF/BPP, peroxide bis-tetra and TAIC. The acid acceptor is selected from the group consisting of calcium hydroxide, magnesium oxide and zinc oxide. In particular, the magnesium oxide is selected from high-activity magnesium oxide. The calcium hydroxide is superfine calcium hydroxide. The flow agent is selected from the group consisting of a fluoro wax, erucamide, carnauba wax, and manicure. Further, according to the mass portions, 90 portions of fluororubber, 10 portions of silicon rubber, 15 portions of precipitated white carbon black, 10 portions of vermiculite, 5 portions of precipitated barium sulfate, 10 portions of expandable microspheres, 1.5 portions of bisphenol AF, 0.8 portion of BPP, 1.5 portions of peroxide bis-tetra-1, 1.5 portions of TAIC, 3 portions of magnesium oxide, 6 portions of calcium hydroxide, 1 portion of fluorine wax and 1.5 portions of erucamide.
It should be noted that in the rubber refining process of the protective layer 12, the rubber is selected from the group consisting of fluororubbers and silicone rubbers, and further, the fluororubbers are implemented as binary-structure or ternary-structure fluororubbers. The silicone rubber is implemented as methyl vinyl silicone rubber. The heat resistant filler is selected from the group consisting of precipitated barium sulfate and mica. The reinforcing material is implemented by precipitated silica. The cross-linking agent is selected from the group consisting of bisphenol AF/BPP, peroxide bis-tetra and TAIC. The colorant is selected from the group consisting of carbon black and titanium dioxide. Further, according to the mass portions, 90 portions of fluororubber, 10 portions of silicon rubber, 15 portions of precipitated white carbon black, 10 portions of mica, 5 portions of precipitated barium sulfate, 1.5 portions of bisphenol AF, 0.8 portion of BPP, 1 portion of peroxide bis-tetra-1, 1.5 portions of TAIC, 0.5 portion of carbon black and 1 portion of titanium dioxide.
The embodiment also provides a manufacturing method of the heat-resistant temperature-resistant elastic rubber mat of the copper-clad plate laminated composite material, which comprises the following steps:
(a) a protective layer 12 of a surface layer 10 is formed by a protective layer refining process;
(b) a rubber refining process forms a rubber layer 22;
(c) combining the rubber layer 22 with a second substrate 21 to form a middle layer 20 by a calendering and frictioning process;
(d) combining the passivation layer 12, the first substrate 11 and the middle layer 20 by a vulcanization process; and
(e) the heat-resistant and temperature-resistant elastic rubber mat 1 is formed through a cutting and edge sealing process.
In step (d), a protective layer 12, a first substrate 11 of the surface layer 10, at least one intermediate layer 20, a first substrate 11 and a protective layer 12 are sequentially introduced into a vulcanizing machine in a laminated manner and are vulcanized and combined into a whole.
It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention.
The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.
Claims (5)
1. The utility model provides a copper-clad plate lamination combined material hinders heat resistance temperature resistant elasticity cushion which characterized in that includes:
at least one surface layer, wherein each surface layer comprises a first base material and a protective layer, and the protective layer is positioned on the surface of the first base material; and
at least one middle layer, wherein each middle layer comprises a second base material and a rubber layer, the rubber layer is combined with the second base material through a calendaring frictioning process, and the surface layer and the middle layer are combined through a vulcanizing process.
2. The copper-clad laminate composite of claim 1 wherein the first substrate and the second substrate are implemented as fiberglass scrim.
3. The copper-clad laminate composite of claim 1, wherein the cured thickness of the protective layer is 0.08-0.10 mm.
4. The copper-clad laminate composite of claim 1, wherein at least one of the middle layers is disposed between two of the facing layers for multi-layer vulcanization, wherein the protective layers of the facing layers are respectively disposed at the outer side.
5. The copper-clad plate laminate composite heat-resistant temperature-resistant elastic cushion according to claim 3, wherein the protective layer, the first base material, at least one middle layer, the first base material and the protective layer are laminated and vulcanized to be integrated.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844963A (en) * | 2020-08-14 | 2020-10-30 | 广东硕成科技有限公司 | Heat-resistant and temperature-resistant elastic rubber mat made of copper-clad plate laminated composite material and manufacturing method thereof |
| CN116875060A (en) * | 2023-08-07 | 2023-10-13 | 广东硕成科技股份有限公司 | High-elasticity tear-resistant hole adhesive in soft contact with pin, and preparation method and application thereof |
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2020
- 2020-08-14 CN CN202021704024.2U patent/CN212636805U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844963A (en) * | 2020-08-14 | 2020-10-30 | 广东硕成科技有限公司 | Heat-resistant and temperature-resistant elastic rubber mat made of copper-clad plate laminated composite material and manufacturing method thereof |
| CN116875060A (en) * | 2023-08-07 | 2023-10-13 | 广东硕成科技股份有限公司 | High-elasticity tear-resistant hole adhesive in soft contact with pin, and preparation method and application thereof |
| CN116875060B (en) * | 2023-08-07 | 2024-03-15 | 广东硕成科技股份有限公司 | High-elasticity tear-resistant hole adhesive in soft contact with pin, and preparation method and application thereof |
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