CN212246874U - Low-index double-sided antistatic silica gel protective film - Google Patents
Low-index double-sided antistatic silica gel protective film Download PDFInfo
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- CN212246874U CN212246874U CN201922419304.2U CN201922419304U CN212246874U CN 212246874 U CN212246874 U CN 212246874U CN 201922419304 U CN201922419304 U CN 201922419304U CN 212246874 U CN212246874 U CN 212246874U
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Abstract
The utility model discloses a two-sided antistatic silica gel protection film of low index and preparation technology thereof, it includes the substrate, substrate both sides face has all coated antistatic coating, one of them antistatic coating lateral surface has coated adhesive coating, the adhesive coating outside is pasted and is had from the type membrane, add the nano carbon tube that has improved electric conductivity in the adhesive coating to makeThe antistatic index of the adhesive coating is less than 109. The utility model discloses a two-sided antistatic silica gel protection film of low index improves the electric conductivity of organic silica gel coating through adding appropriate amount of nanometer carbon tube material in organic silica gel glue to make the carbon tube in the organic silicon coating be the structure of the netted cross-linking in space, impel the antistatic coating on silica gel surface and former membrane substrate top layer to link up, in order to obtain the two-sided antistatic silica gel protection film of low index.
Description
Technical Field
The utility model belongs to film equipment field, concretely relates to two-sided antistatic silica gel protection film of low index.
Background
At present, electronic products are developed vigorously, the consumption of silica gel protective films is multiplied every year, electronic elements and accessories are smaller and smaller, and intelligent assembly speed is faster and faster. Static electricity is more easily generated during the production of electronic products. If a mainstream common or antistatic silica gel protective film is used in the assembly process, a customer can frequently generate an electrostatic discharge phenomenon in the use process, a large amount of electronic elements can be damaged, the product yield and the efficiency are greatly reduced, and meanwhile, a fire disaster is easily caused.
Defects and deficiencies:
1. the silicone coating has poor conductivity, and mutual contact and friction in the production process can cause the accumulation of static electricity, and when the silicone coating is in contact with an easily conductive material, static electricity can be released.
2. At present, it is domestic, two-sided antistatic silica gel protection film face antistatic index can accomplish 109-1012And 10, respectively9The technology of the internal antistatic protective film needs to be developed, the antistatic index does not reach the standard, the application in the electronic industry has defects, electronic elements are easy to damage, and domestic common customers can choose to import the antistatic protective film from abroad.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem, the utility model provides a two-sided antistatic silica gel protection film of low index of easy preparation.
The technical scheme of the utility model a two-sided antistatic silica gel protection film of low index is provided, it includes the substrate, substrate both sides face has all coated antistatic coating, one of them antistatic coating lateral surface has coated adhesive coating, the adhesive coating outside is pasted and is had from the type membrane, add the carbon nanotube that has improved conductivity in the adhesive coating, so that adhesive coating's antistatic index is less than 109。
Preferably, the adhesive coating is externally printed with a grid-shaped pattern.
Preferably, the adhesive coating is made of silicone rubber coating.
Preferably, the adhesive coating has an antistatic index of 106～108In the meantime.
Preferably, the antistatic coating on the side not coated with the adhesive coating has an antistatic index of 106～108In the meantime.
The utility model discloses a two-sided antistatic silica gel protection film of low index improves the electric conductivity of organic silica gel coating through adding appropriate amount of nanometer carbon tube material in organic silica gel glue to make the carbon tube in the organic silicon coating be the structure of the netted cross-linking in space, impel the antistatic coating on silica gel surface and former membrane substrate top layer to link up, in order to obtain the two-sided antistatic silica gel protection film of low index.
Drawings
FIG. 1 is a schematic structural diagram of a low-index double-sided antistatic silica gel protective film according to a preferred embodiment of the present invention;
fig. 2 is a schematic flow chart of the preparation process of the present invention.
Detailed Description
The following describes in further detail embodiments of the present invention.
As shown in figure 1, the utility model provides a two-sided antistatic silica gel protection film of low index, it includes substrate 10, and substrate 10 both sides face has all coated antistatic coating 12, and one of them antistatic coating 12 lateral surface has coated adhesive coating 14, and adhesive coating 14 outside is pasted and is had from type membrane 16, adds the carbon nanotube that has improved conductivity in the adhesive coating 14 to make adhesive coating 14's antistatic index at 106～108The antistatic coating 12 on the side not coated with the adhesive coating 14 also has an antistatic index of 106～108In the meantime.
The adhesive coating 14 is made by coating organic silica gel, and grid-shaped patterns are printed on the outer side of the adhesive coating 14, so that the carbon nanotubes are in a net-shaped cross-linked structure, the conductivity is improved, and the antistatic index is reduced. In addition, the grid-shaped patterns help to guide air when the release film 16 is removed and attached, so that the adhesion is smoother and firmer.
As shown in fig. 2, the preparation process of the present invention includes the following steps:
1) coating antistatic coatings on two sides of the substrate, and rolling the substrate on a discharge roll 30 of a coating machine 20;
2) mixing, namely mixing the carbon nanotubes and the adhesive according to a set proportion, stirring for 5-10 minutes to obtain an antistatic adhesive, filtering the antistatic adhesive by a filter element of 3um, filtering by a filter disc of 300 meshes, and guiding into a coating tank 32 below a coating head 22;
3) gluing, wherein the substrate passes through a coating head, and an antistatic adhesive is coated on the antistatic coating on one side to obtain an adhesive coating;
4) drying the mixture in an oven 24 with the adhesive coating facing upwards;
5) and printing, namely printing the adhesive coating through an anilox roller 26 to form an anilox pattern on the surface of the adhesive coating.
6) And winding, namely winding through a winding roller 28.
Further, the step 1) comprises the steps of detecting the antistatic value of the antistatic coating, and selecting the antistatic coating with the lower antistatic value to perform the gluing treatment in the step 3).
Further, in the step 2), the antistatic adhesive is poured into a trough, a peristaltic pump is used for feeding the coating head, and an ultrasonic stirrer is continuously used for stirring the antistatic adhesive in the feeding process.
Further, after stacking using 110 mesh, 180 mesh and 300 mesh filter disks in step 2), the antistatic adhesive was poured into a trough.
The above embodiment is only one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. Low-index double-sided antistatic coatingElectro-silica gel protection film, it includes the substrate, its characterized in that: the antistatic coating is coated on two sides of the substrate, one of the antistatic coating is coated on the outer side of the substrate, the release film is adhered on the outer side of the adhesive coating, and carbon nanotubes with improved conductivity are added in the adhesive coating, so that the antistatic index of the adhesive coating is less than 109。
2. The low-index double-sided antistatic silica gel protective film according to claim 1, characterized in that: the outside of the adhesive coating is printed with a grid-shaped pattern.
3. The low-index double-sided antistatic silica gel protective film according to claim 1, characterized in that: the adhesive coating is made of organic silica gel coating.
4. The low-index double-sided antistatic silica gel protective film according to claim 1, characterized in that: the antistatic index of the adhesive coating is 106～108In the meantime.
5. The low-index double-sided antistatic silica gel protective film according to claim 1, characterized in that: the antistatic index of the antistatic coating on the side not coated with the adhesive coating is 106～108In the meantime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922419304.2U CN212246874U (en) | 2019-12-30 | 2019-12-30 | Low-index double-sided antistatic silica gel protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922419304.2U CN212246874U (en) | 2019-12-30 | 2019-12-30 | Low-index double-sided antistatic silica gel protective film |
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| Publication Number | Publication Date |
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| CN212246874U true CN212246874U (en) | 2020-12-29 |
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| CN201922419304.2U Active CN212246874U (en) | 2019-12-30 | 2019-12-30 | Low-index double-sided antistatic silica gel protective film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073549A (en) * | 2019-12-30 | 2020-04-28 | 苏州美艾仑新材料科技有限公司 | Low-index double-sided antistatic silica gel protective film and preparation process thereof |
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2019
- 2019-12-30 CN CN201922419304.2U patent/CN212246874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073549A (en) * | 2019-12-30 | 2020-04-28 | 苏州美艾仑新材料科技有限公司 | Low-index double-sided antistatic silica gel protective film and preparation process thereof |
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