CN116376432B - Color separation coating treatment liquid, coating and ceramic color separation mica tape containing coating - Google Patents
Color separation coating treatment liquid, coating and ceramic color separation mica tape containing coating Download PDFInfo
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- CN116376432B CN116376432B CN202310439891.XA CN202310439891A CN116376432B CN 116376432 B CN116376432 B CN 116376432B CN 202310439891 A CN202310439891 A CN 202310439891A CN 116376432 B CN116376432 B CN 116376432B
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- 238000000576 coating method Methods 0.000 title claims abstract description 123
- 239000011248 coating agent Substances 0.000 title claims abstract description 122
- 238000000926 separation method Methods 0.000 title claims abstract description 112
- 239000010445 mica Substances 0.000 title claims abstract description 79
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 79
- 239000000919 ceramic Substances 0.000 title claims abstract description 54
- 239000007788 liquid Substances 0.000 title claims abstract description 49
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000741 silica gel Substances 0.000 claims abstract description 34
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 34
- 239000003063 flame retardant Substances 0.000 claims abstract description 20
- 239000000839 emulsion Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 19
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 19
- 239000004945 silicone rubber Substances 0.000 claims abstract description 19
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 17
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims description 97
- 239000002994 raw material Substances 0.000 claims description 29
- 238000001035 drying Methods 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 239000005002 finish coating Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 45
- 230000009970 fire resistant effect Effects 0.000 description 10
- 238000009413 insulation Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000003086 colorant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 238000007755 gap coating Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008738 Clausena lansium Nutrition 0.000 description 1
- 241000757020 Pontederia Species 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000004595 color masterbatch Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052628 phlogopite Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The application relates to the technical field of mica tapes, and particularly discloses a color separation coating treatment liquid, a coating and a ceramic color separation mica tape containing the coating. The application discloses a color separation coating treatment fluid which comprises the following components in parts by weight: organic silica gel solution: silicone rubber emulsion: silica gel color agent: flame retardant: porcelain filler= (4-6): (3.5-4.5): (2-3): (1-2): (2-4). The application also discloses a coating prepared from the color separation coating treatment liquid and a ceramic color separation mica tape containing the coating.
Description
Technical Field
The application relates to the technical field of mica tapes, in particular to a color separation coating treatment fluid, a coating and a ceramic color separation mica tape containing the coating.
Background
The power cable and the crosslinked cable generally use color master batches with different colors to extrude insulating sheaths with different colors, and the insulating sheaths are used as color separation marks of the multi-core cable; or by using a dichroic tape to be extruded into the transparent sheath.
At present, because the sheath or the color separation belt has poor high temperature resistance, the sheath or the color separation belt generally can lose function under the high temperature condition higher than 260 ℃, and particularly, plastic products are easy to liquefy under the flame combustion or high temperature environment. If under the complex conditions such as fire disaster, the liquefied substances of the fire disaster can cause the high-temperature insulation layer of the fire-resistant cable to fail, and the short circuit phenomenon occurs. Therefore, there is a need to improve the high temperature resistance of mica tapes to solve the above problems.
Disclosure of Invention
In order to improve the high temperature resistance of the mica tape, the application provides a color separation coating treatment liquid, a coating and a ceramic color separation mica tape containing the coating.
In a first aspect, the application provides a color separation coating treatment fluid, which comprises the following components in parts by weight: organic silica gel solution: silicone rubber emulsion: silica gel color agent: flame retardant: porcelain filler= (4-6): (3.5-4.5): (2-3): (1-2): (2-4).
The application uses the organic silica gel solution, the silicone rubber emulsion, the silica gel color agent, the flame retardant and the porcelain filler in the weight ratio as raw materials for preparing the coating, and the coating is coated on a mica tape substrate to obtain the ceramic color separation mica tape; the ceramic color separation mica tape has the color separation effect when having fire-resistant insulating property, combines two materials of a sheath and a color separation tape used in the existing cable, and further effectively saves manufacturing cost and material cost.
Preferably, the color separation coating treatment liquid comprises the following components in parts by weight: organic silica gel solution: silicone rubber emulsion: silica gel color agent: flame retardant: porcelain filler= (5-6): (3.5-4.5): (2-3): (1-2): (2-4).
Further, the color separation coating treatment fluid comprises the following components in parts by weight: organic silica gel solution: silicone rubber emulsion: silica gel color agent: flame retardant: ceramic filler = 6: (3.5-4.5): (2-3): (1-2): (2-3).
Preferably, the types of the organic silica gel solution comprise any one of model 2620, model 9169 and model ZNJ; the type of the silicone rubber emulsion comprises any one of model 107, model GXJ01 and model 5468; the types of the silica gel toner comprise any one of model GJ01 and model 709; the type of the flame retardant comprises any one of a model ZR105, a model DLGK04 and a model 1309; the type of the porcelain filler comprises any one of a model 24304 and a model 1688.
Further, the type of the organic silica gel solution is model 9169 or model ZNJ01; the type of the silicone rubber emulsion is model 107 or model 5468; the type of the silica gel toner is model GJ01 or model 709; the type of the flame retardant is model ZR105 or model DLGK04; the type of the porcelain filler is model 24304 or model 24304.
The application optimizes the synergistic cooperation effect of the five raw materials by screening the types of the five raw materials in the color separation coating treatment liquid, thereby further improving the insulation performance and the fire resistance of the ceramic color separation mica tape.
In a second aspect, the application provides a preparation method of the color separation coating treatment liquid, which specifically comprises the following steps: and mixing the raw materials according to the weight ratio, and then mixing and stirring under the conditions of not less than 800rpm and stirring time not less than 2 hours to prepare the color separation coating treatment liquid.
By adopting the technical scheme, when the stirring speed is lower than 800rpm, the uniformity of the treatment liquid is poor, and the pigment cannot be uniformly dissolved in the coating liquid; when the stirring time is less than 2 hours, the uniformity of the treatment fluid is poor, and the coloring and ceramifiable effects of the coating fluid cannot be achieved.
In a third aspect, the present application provides a coating prepared using the color separation coating treatment solution described above.
In a fourth aspect, the application provides a method for preparing the coating, which specifically comprises the following steps: coating the color separation coating treatment liquid on the surface of the substrate in a crack coating mode, and drying in three areas to finish coating on the surface of the substrate; the speed of the crack coating is 5-7m/min.
Preferably, the specific method for drying comprises the following steps: drying in a third area; the temperature of the first region is 60-80 ℃, the time is 4-6min, the temperature of the second region is 130-140 ℃, the time is 2-4min, the temperature of the third region is 40-50 ℃, and the time is 4-6min.
By adopting the technical scheme, the application screens the crack coating speed and the drying method, and further improves the insulation performance and the fire resistance of the ceramic color separation mica tape.
In a fifth aspect, the present application provides an article comprising a substrate and a coating as described above.
In a sixth aspect, the present application provides a ceramic dichroic mica tape comprising a mica tape substrate and a coating as described above.
Preferably, the normal withstand voltage of the ceramic color separation mica tape is more than or equal to 55Mv/mm, and the fire resistance temperature is more than or equal to 830 ℃.
Further, the normal withstand voltage of the ceramic color separation mica tape is more than or equal to 63Mv/mm, and the fire resistance temperature is more than or equal to 865 ℃.
In summary, the technical scheme of the application has the following effects:
The application uses the mica tape as a matrix material, and the coating prepared by the application is used for treating the mica tape to increase different colors, so that the obtained ceramic color separation mica tape has high-temperature porcelain property.
The application specifically prepares the color-separating coating treatment fluid by using color-separating coating and a porcelain material, carries out coating treatment on the mica tape, outwards winds the dyeing surface when the conductor winds, outwards winds the color-separating layer, ensures that the wrapped fire-resistant wires have different colors through the self color of the mica tape, has color-separating effect, omits the color-separating tape or the color-separating sheath, combines two materials used in the existing cable into one, effectively improves the production efficiency and reduces the production cost. In addition, the length of the ceramic color separation mica tape wrapping wire can be produced according to the length of an order, so that the problem of inventory of a user can be effectively reduced, and the ceramic color separation mica tape has a longer length and is generally not matched with the length of a cable due to the problem of cost in the color separation tape production, so that the problem of residual inventory is always solved.
The ceramic color separation mica tape coating is added with the ceramic material, so that the fire-resistant cable has more excellent fire-resistant insulating property and improves the cable safety compared with a common fire-resistant cable.
Drawings
Fig. 1 is a schematic structural diagram of a ceramic color separation mica tape according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below in conjunction with examples, comparative examples and performance test experiments, which should not be construed as limiting the scope of the application as claimed.
Preparation example
Preparation example 1
The preparation example provides a color separation coating treatment liquid.
The composition of the color separation coating treatment liquid in the preparation example is as follows: 4g of organic silica gel solution (purchased from Jiangxi Ri Yuan New Material Co., ltd., model ZNJ), 4.5g of silicone rubber emulsion (purchased from Shenzhen Shengshan Silicone Material Co., ltd., model 5468), 3g of silica gel colorant (purchased from Dongguan Jia Hon organic silicon Co., ltd., model 709), 2g of flame retardant (purchased from Shandong Yongyou chemical technology Co., ltd., model ZR 105) and 4g of porcelain filler (purchased from Bisley New Material Co., ltd., model 24304); namely, the weight ratio of the organic silica gel solution, the silicone rubber emulsion, the silica gel color, the flame retardant and the porcelain filler is 4:4.5:3:2:4.
The preparation method of the color separation coating treatment liquid in the preparation example comprises the following steps: after the raw materials are mixed according to the weight ratio, the raw materials are mixed and stirred at 800rpm for 2 hours, and the color separation coating treatment liquid is prepared.
PREPARATION EXAMPLES 2 to 16
Preparation examples 2-16 each provide a color separation coating treatment solution.
The above preparation example differs from preparation example 1 in that: the amounts of the components in the color separation coating treatment liquid are different, and are shown in table 1.
TABLE 1 amounts of the components in the color separation coating treatment solutions of preparation examples 1 to 16
Preparation example 17
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the sources of the silicone gum solutions were different, and the silicone gum solutions in this preparation were purchased from Jiangmen Guanyu silicone materials Inc., model 2620.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
PREPARATION EXAMPLE 18
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the sources of the silicone gum solutions were different, and the silicone gum solution in this preparation example was purchased from Hubei New Sihai chemical Co., ltd., model 9169.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
Preparation example 19
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the sources of the silicone rubber emulsions were different, and the silicone rubber emulsion in this preparation example was purchased from Shandong Otton New Material Co., ltd., model 107.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
Preparation example 20
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the sources of the silicone rubber emulsions were different, and the silicone rubber emulsion in this preparation example was purchased from Guangdong super New Material Co., ltd., model GXJ01.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
Preparation example 21
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the sources of the silica gel toner are different, and the silica gel toner in this preparation example is purchased from Orley New Material Co., ltd., model GJ01.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
PREPARATION EXAMPLE 22
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the sources of the flame retardants vary, and the flame retardants in this preparation example are available from Dagao plastics materials Co., ltd., model DLGK.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
Preparation example 23
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the sources of the flame retardants are different, and the flame retardants in this preparation example are purchased from Shanghai Yuan Jiang chemical Co., ltd., model 1309.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
PREPARATION EXAMPLE 24
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the source of the porcelain filler is different, and the porcelain filler in the preparation example is purchased from Chengdu Su porcelain New Material Co., ltd, model 24304.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
Preparation example 25
The preparation example provides a color separation coating treatment liquid.
The present preparation example differs from preparation example 3 in that: the source of the porcelainized filler is different, and the porcelainized filler in the preparation example is purchased from Businew New Material Co., ltd., model 24304.
The other raw materials, the use amounts of the raw materials and the preparation method of the color separation coating treatment liquid in the preparation example are the same as those in the preparation example 3.
Examples
Examples 1 to 15
Examples 1-15 provide a ceramic dichroic mica tape, respectively.
The above-described embodiments differ in that: the source of the color separation coating treatment liquid is different, and is shown in table 2.
The schematic structural diagram of the ceramic color separation mica tape in the above embodiment is shown in fig. 1, wherein the bottom layer is glass fiber reinforced cloth (purchased from dormitory with new materials, limited, etc.), the middle layer is mica paper (the model of mica paper is P506, purchased from wampee mica insulation materials, inc. In Pingjiang county), and the upper layer is a coated coating; the preparation method of the ceramic color separation mica tape comprises the following specific steps:
the mica paper and the glass fiber cloth are coated in a coating mode to form a mica tape matrix, so that the mica paper has tensile strength, and the coating process is as follows: glass fiber cloth sizing, mica paper laminating, drying and rolling;
The mica tape substrate is treated by the color separation coating treatment liquid prepared in the preparation example in a crack coating mode, so that the mica tape substrate has color separation property and the fire-resistant insulation property is improved; the gap between the two layers is 0.03mm, the speed is 6m/min, the drying temperature is three-zone drying, the temperature of the first zone is 70 ℃, the time is 5min, the temperature of the second zone is 135 ℃, the time is 3min, the temperature of the third zone is 45 ℃, and the time is 5min;
dividing the colored coating mica tape into discs, and boxing according to different colors.
TABLE 2 Source of color-separation coating treatment fluids in examples 1-15
Example 16
The embodiment provides a ceramic color separation mica tape.
This embodiment differs from embodiment 3 in that: the preparation method of the ceramic color separation mica tape is different in drying method and specifically comprises the following steps:
The drying temperature is three areas for drying, one area is 60 ℃, the time is 6min, the other area is 140 ℃, the time is 2min, the three areas are 50 ℃, and the time is 4min.
Example 17
The embodiment provides a ceramic color separation mica tape.
This embodiment differs from embodiment 3 in that: the preparation method of the ceramic color separation mica tape is different in drying method and specifically comprises the following steps:
The drying temperature is three-zone drying, the first zone is 80 ℃, the time is 4min, the second zone is 130 ℃, the time is 4min, the third zone is 40 ℃, and the time is 6min.
Comparative example
Comparative example 1
Comparative examples 1-10 each provide a ceramic color separation mica tape.
The above comparative example is different from example 2 in that: the source of the color separation coating treatment liquid is different, and is shown in table 3. The above comparative example was prepared in the same manner as the ceramic color separation mica tape of example 2.
TABLE 3 Source of color-separation coating treatment fluids in comparative examples 1-10
Comparative example 11
This comparative example provides a ceramic color separation mica tape.
This comparative example differs from example 3 in that: the speed of crack coating in the preparation method of the ceramic color separation mica tape is different, and is specifically 4m/min.
Comparative example 12
This comparative example provides a ceramic color separation mica tape.
This comparative example differs from example 3 in that: the speed of crack coating in the preparation method of the ceramic color separation mica tape is different, and is specifically 8m/min.
Comparative example 13
This comparative example provides a ceramic color separation mica tape.
This comparative example differs from example 3 in that: the preparation method of the ceramic color separation mica tape is different in drying method and specifically comprises the following steps:
the drying temperature is two-zone drying, the temperature of the first zone is 70 ℃, the time is 5min, the temperature of the second zone is 135 ℃, and the time is 5min.
Comparative example 14
This comparative example provides a ceramic color separation mica tape.
This comparative example differs from example 3 in that: the preparation method of the ceramic color separation mica tape is different in drying method and specifically comprises the following steps:
The drying temperature is two-zone drying, the temperature of the first zone is 135 ℃, the time is 3min, the temperature of the second zone is 35 ℃, and the time is 6min.
Comparative example 15
This comparative example provides a common trinity gold mica tape.
The common three-in-one gold mica tape in this comparative example is from Beijing Yitianling cloud technology Co., ltd, model 541-3S (JP).
Performance test
(1) Color separation coating treatment liquid and performance observation of coating on ceramic color separation mica tape
The amounts of the raw materials in the color separation coating treatment solutions and the preparation method of the ceramic color separation mica tape in the examples 1-17 meet the requirements of the application, the color separation coating treatment solution has good solubility, the coating is uniform, the ceramic property of the product is good, and the cracking and powder dropping phenomena are avoided.
When the dosage of each raw material in the color separation coating treatment liquid does not accord with the weight ratio defined by the application, the performance of the color separation coating treatment liquid or the performance of the coating on the ceramic color separation mica tape is poorer, specifically: in the comparative example 1, the organic silica gel solution is lower than the organic silica gel solution in the comparative example 4, the color separation coating treatment solution has poor solubility, the coating uniformity is poor, and particles appear on the surface of the coating; in the comparative example 2, the organic silica gel solution is higher than the organic silica gel solution in the comparative example 6, the color separation coating treatment liquid is thinner, the uniformity of the coating is poor, and the color of the coating is different; in the comparative example 3, the proportion of the silicone rubber emulsion is lower than 3.5, the product has poor porcelain property, and a ceramic layer cannot be formed at a high temperature; in the comparative example 4, the proportion of the silicone rubber emulsion is higher than 4.5, the porcelain-like property of the product is poor, and the cracking phenomenon occurs; in the comparative example 5, the proportion of the silica gel toner is lower than 2, the color of the product is lighter, and the color of phlogopite cannot be covered; in the comparative example 6, the proportion of the silica gel toner is higher than 3, and the color of the product is not correct in comparison with the color card; in the comparative example 7, the flame retardant ratio is lower than 1, and the flame retardant effect of the product coating is poor; in the comparative example 8, the proportion of the flame retardant is higher than 2, and the coating of the product has the phenomenon of powder falling; in the comparative example 9, the proportion of the filler is lower than 2, the product mica has poor porcelain property, and a ceramic layer cannot be formed at a high temperature; in comparative example 10, the filler ratio was higher than 4, and the coating of the product had a powder falling phenomenon.
When the preparation method of the ceramic color separation mica tape does not accord with the method defined by the application, the gap coating speed in comparative example 11 is 4m/min, and the coating liquid is accumulated at the gap of the gap to be solidified due to the excessively low speed, so that the thickness of the coating is easily reduced, and the coating is blocked seriously; the gap coating speed in comparative example 12 was 8m/min, and color difference occurred during the gap coating due to the excessive speed; chapping occurs on the coating surface, and bubbles appear on the coating surface; in comparative examples 13 and 14, the coating surface was cracked and the coating surface was air-bubble was observed by the two-zone drying method.
(2) Performance detection of ceramic color separation mica tape
The thickness of the mica tapes in examples 1 to 17 of the present application and comparative examples 1 to 15 was in the range of 0.145 to 0.148mm, and the grammage was in the range of 202 to 204g/m 2.
Dielectric strength withstand voltage: the test was performed according to the method specified in chapter 22 of GBT5019.2-2009, and the dielectric strength of the mica tape as an insulator was examined.
Fire-resistant combustion experiment: the fire resistance of the mica tape was examined by the method prescribed by GBT 19216.11-2003.
Detection result: as shown in table 4.
TABLE 4 results of performance measurements for ceramic color separation mica tapes in examples 1-17 and comparative examples 1-15
In combination with Table 4, it is understood that the present application utilizes the weight ratio (4-6) by comparing the properties of the mica tapes in examples 1-17 and comparative examples 1-15: (3.5-4.5): (2-3): (1-2): the organic silica gel solution, the silicone rubber emulsion, the silica gel color agent, the flame retardant and the ceramic filler in the (2-4) are used as raw materials for preparing the coating, and the coating is coated on a mica tape matrix to obtain the high-temperature-resistant ceramic color separation mica tape with normal withstand voltage not less than 55Mv/mm and fire resistance temperature not less than 830 ℃. Therefore, by utilizing the technical scheme disclosed by the application, the mica tape has fire-resistant insulating property and color separation function, two materials of the sheath and the color separation tape used in the existing cable are combined into one, so that the manufacturing cost and the material cost can be effectively saved, and in addition, the fire-resistant insulating property of the mica tape is better, and the cable safety is improved.
According to the detection results of comparative examples 1-6 and comparative examples 1-10, the weight ratio of 5 raw materials in the color separation coating treatment liquid is controlled to be (4-6): (3.5-4.5): (2-3): (1-2): (2-4) can improve the insulation performance and fire resistance of the ceramic color separation mica tape.
According to the detection results of comparative examples 3 and 7-15, the insulation performance and fire resistance of the ceramic color separation mica tape are further improved by screening the organic silica gel solution of model 9169 or ZNJ01, the silicone rubber emulsion of model 107 or 5468, the silica gel pigment of model GJ01 or 709, the fire retardant of model ZR105 or DLGK04 and the porcelain filler of model 24304 or 24304.
According to the detection results of comparative examples 3, 16-17 and comparative examples 11-14, in the preparation method of the ceramic color separation mica tape, when the speed of crack coating is lower than 5m/min, or when the speed of crack coating is higher than 7m/min, or by using a two-zone drying method, the insulation performance and the fire resistance of the ceramic color separation mica tape are poor; the application further improves the insulation performance and fire resistance of the ceramic color separation mica tape by controlling the crack coating speed to be 5-7m/min and utilizing a three-zone drying method.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (3)
1. The coating is characterized by being prepared by using color separation coating treatment liquid; the color separation coating treatment liquid comprises the following components in percentage by weight: organic silica gel solution: silicone rubber emulsion: silica gel color agent: flame retardant: ceramic filler = 6: (3.5-4.5): (2-3): (1-2): (2-3); the type of the organic silica gel solution is model 9169 or model ZNJ01; the type of the silicone rubber emulsion is model 107 or model 5468; the type of the silica gel toner is model GJ01 or model 709; the type of the flame retardant is model ZR105 or model DLGK04; the type of the porcelain filler is model 24304;
The preparation method of the color separation coating treatment liquid specifically comprises the following steps: mixing the raw materials according to the weight ratio, and then mixing and stirring under the conditions that the speed is not lower than 800rpm and the stirring time is not lower than 2 hours to prepare the color separation coating treatment liquid;
The preparation method of the coating comprises the following steps: coating the color separation coating treatment liquid on the surface of the substrate in a crack coating mode, and drying in three areas to finish coating on the surface of the substrate; the speed of the crack coating is 5-7m/min;
The specific method for drying in the three areas comprises the following steps: the temperature of the first region is 60-80 ℃, the time is 4-6min, the temperature of the second region is 130-140 ℃, the time is 2-4min, the temperature of the third region is 40-50 ℃, and the time is 4-6min.
2. An article comprising a substrate and the coating of claim 1.
3. A ceramic dichroic mica tape comprising a mica tape substrate and the coating of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310439891.XA CN116376432B (en) | 2023-04-23 | 2023-04-23 | Color separation coating treatment liquid, coating and ceramic color separation mica tape containing coating |
Applications Claiming Priority (1)
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