CN110777562B - Flame-retardant release paper and preparation method thereof - Google Patents
Flame-retardant release paper and preparation method thereof Download PDFInfo
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- CN110777562B CN110777562B CN201910915359.4A CN201910915359A CN110777562B CN 110777562 B CN110777562 B CN 110777562B CN 201910915359 A CN201910915359 A CN 201910915359A CN 110777562 B CN110777562 B CN 110777562B
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/32—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/34—Ignifugeants
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/28—Presence of paper
Abstract
The invention provides flame-retardant release paper, which comprises a raw paper layer and a release layer, wherein the release layer consists of a release agent, and is characterized in that the release agent comprises the following raw materials in parts by weight: 100 parts of silicone oil; 1.5-2.5 parts of cross-linking agent; 0-100 parts of heavy stripping additive; 0.2-0.4 parts of anchoring agent; 1-2 parts of platinum catalyst. The flame-retardant release paper provided by the invention has a simple structure, can be used for preparing various pressure-sensitive adhesive tapes, has good flame retardant property, and can be applied to various electronic and electric products.
Description
Technical Field
The invention relates to release paper and a preparation method thereof, in particular to flame-retardant release paper and a preparation method thereof.
Background
Release paper is also called release paper, and is widely used in life and technology of people, the release paper is generally divided into double-sided release paper and single-sided release paper, the structure is provided with two-layer structure or three-layer structure, the release paper is prepared by coating release agent on raw glassine paper, the release paper is prepared by coating release agent on three-layer structure, such as PEK (polyethylene terephthalate) coated paper, and therefore, the release paper is prepared by coating release agent on base paper. The existing release paper such as glassine release paper and PEK release paper have no flame retardant property.
Disclosure of Invention
In order to solve the technical problems, the invention provides the flame-retardant release paper and the preparation method thereof, and the release paper has a simple structure and good flame retardant property and can be applied to various electronic and electric products.
The technical scheme adopted for solving the technical problems is as follows:
the flame-retardant release paper comprises a raw paper layer and a release layer, wherein the release layer is composed of a release agent, and the release agent comprises the following raw materials in parts by weight:
50-100 parts of silicone oil;
500-2000 parts of a solvent;
1.5-2.5 parts of cross-linking agent;
0-100 parts of heavy stripping additive;
0.2-0.4 parts of anchoring agent;
1-2 parts of platinum catalyst.
Further, the silicone oil is vinyl siloxane.
Further, the solvent comprises one or more of toluene, ethyl acetate and 120# gasoline.
Further, the cross-linking agent is hydrogen-containing silicone oil.
Further, the heavy peel additive is MQ silicone.
Further, the anchoring agent is an organosilane.
Further, the platinum catalyst is one or more of a platinum compound and polydimethylsiloxane.
Further, the thickness of the release layer is 0.001-0.004 mu m.
Further, the thickness of the raw paper layer is 30-200 mu m, the raw paper is aramid paper, and the tensile strength can reach 50-150N/cm.
Further, the preparation method of the flame-retardant release paper comprises the following steps:
step 1: weighing all raw materials required by preparing the release agent, and fully mixing to prepare the release agent;
step 2: coating a release agent on the raw paper layer at a coating speed of 30-80m/min;
step 3: drying at 100-170deg.C for 40-50s;
step 4: and (5) winding by adopting a winding mode of winding the central surface, thus obtaining the flame-retardant release paper.
The invention has the beneficial effects that:
the flame-retardant release paper provided by the invention has a simple structure, can be used for preparing various pressure-sensitive adhesive tapes, has good flame retardant property, and can be applied to various electronic and electric products.
Detailed Description
In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to specific embodiments.
Example 1
Weighing 100 parts of vinyl siloxane, adding 1000 parts of toluene and stirring for 5 minutes, adding 2 parts of hydrogen-containing silicone oil and stirring for 5 minutes, adding 50 parts of MQ silicone resin and stirring for 5 minutes, adding 0.3 part of organosilane and stirring for 5 minutes, and adding 1.5 parts of platinum compound and stirring for 15 minutes; placing the raw materials into a container, and finally, fully stirring and mixing for 35 minutes to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 100 mu m at the coating speed of 50m/min by using a coating machine, wherein the thickness of the coated release agent is 0.004 mu m; the actual dry silicon content was about 4g/m 2 Then baking in a drying furnace at 100-170 ℃ for 50s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
Example 2
Weighing 80 parts of vinyl siloxane Mickey SS6800, adding 800 parts of ethyl acetate, stirring for 5 minutes, adding 1.5 parts of hydrogen-containing silicone oil Mickey SS475, stirring for 5 minutes, adding 0.2 part of Mickey A1000, stirring for 5 minutes, adding 10 parts of Mickey SL5130, stirring for 5 minutes, and adding 1 part of Mickey XC94-C4326, stirring for 15 minutes; placing the raw materials into a container, fully stirring and mixing for 35 minutes to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 30 mu m at the coating speed of 50m/min by using a coating machine, wherein the thickness of the coated release agent is 0.002 mu m; the actual dry silicon content is about 2g/m 2 Then drying in a drying furnace with the temperature of 70-170 DEG CBaking for 40s, and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
Example 3
Weighing 120 parts of daokanning SB7458, adding 1500 parts of 120# gasoline, stirring for 5 minutes, 2.5 parts of daokanning 7028, stirring for 5 minutes, 100 parts of daokanning 7210, stirring for 5 minutes, 0.4 part of daokanning 297, stirring for 5 minutes, and 2 parts of daokanning 4000, stirring for 15 minutes; placing the raw materials into a container, fully stirring and mixing for 35 minutes to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 200 mu m at the coating speed of 50m/min by using a coating machine, wherein the thickness of the coated release agent is 0.003 mu m; the actual dry silicon content is about 3g/m 2 Then baking in a drying furnace at 70-170 ℃ for 45s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
Example 4
100 parts of Wake D955, 1000 parts of toluene, 2.3 parts of Wake V60, 80 parts of Wake CRA21, 0.35 part of Wake HF87 and 1.8 parts of Wake C05 are weighed; placing the raw materials into a container, fully stirring and mixing for 35 hours to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 100 mu m at the coating speed of 50m/min by using a coating machine, wherein the coating thickness is 0.004 mu m; the dry silicon content was about 4g/m 2 Then baking in a drying furnace at 70-170 ℃ for 50s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
Example 5
Weighing 100 parts of Mickey diagram SS6800, 1200 parts of ethyl acetate, 2 parts of Mickey diagram SS475, 50 parts of Mickey diagram SL5130, 0.3 part of Mickey diagram A1000 and 1.5 parts of Mickey diagram XC94-C4326; placing the raw materials into a container, fully stirring and mixing for 35 minutes to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 100 mu m at the coating speed of 50m/min by using a coating machine, wherein the coating thickness is 0.004 mu m; just come back to about 4g/m 2 Then baking in a drying furnace at 70-170 ℃ for 50s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
Example 6
100 parts of daokanning SB7458 and 120# gasoline are weighed, 2 parts of daokanning 7028, 50 parts of daokanning 7210, 0.3 part of daokanning 297 and 1.5 parts of daokanning 4000 are weighed; placing the raw materials into a container, fully stirring and mixing for 35 minutes to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 100 mu m at the coating speed of 50m/min by using a coating machine, wherein the coating thickness is 0.004 mu m; the dry silicon content was about 4g/m 2 Then baking in a drying furnace at 70-170 ℃ for 50s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
Example 7
100 parts of Wake D955, 2 parts of Daomai diagram SS475, 50 parts of Daokanning 7210, 0.3 part of Daokanning 297 and 1.5 parts of Daokanning 4000 are weighed; placing the raw materials into a container, fully stirring and mixing for 1h to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 100 mu m at the coating speed of 50m/min by using a coating machine, wherein the coating thickness is 0.004 mu m; then baking in a drying furnace at 170 ℃ for 50s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
Example 8
100 parts of Wake D955, 1.8 parts of Wake V60, 30 parts of Wake CRA21, 0.22 part of Wake HF87 and 1.3 parts of Wake C05 are weighed; placing the raw materials into a container, fully stirring and mixing for 1h to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 100 mu m at the coating speed of 50m/min by using a coating machine, wherein the coating thickness is 0.004 mu m; then baking in a drying furnace at 170 ℃ for 50s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
And (3) testing release force: from the flame-retardant release papers prepared in examples 1 to 8, a piece of flame-retardant release paper having a size of at least 450 mm long and 250 mm wide was taken, and a standard adhesive tape was lightly pressed with fingers onto the release layer of the flame-retardant release paper in the direction of release agent coating, respectively. The test bars were cut along the release coating direction, 175 mm long and 25 mm wide, and the cuts were clean and straight. The test rolls were rolled back and forth 2 times with a FINAT test roll at a speed of about 10 millimeters per second. Test bars were placed between two metal bars or glass plates, the bars were subjected to a pressure of 6.86 kpa (70 g/cm) and held at 25 ℃ for 20 hours to ensure adequate contact between the standard tape and the release layer. The bars were then removed and tested for peel force after at least 4 hours in a standard environment with a relative humidity of 50% and a temperature of 25 ℃. The test sample strip is fixed on a test instrument, the instrument is set to strip the adhesive tape from the release layer under the conditions that the stripping speed is 300 millimeters per minute and the stripping angle is 180 degrees, in the test process of the instrument, data are read every 10 millimeters for the middle section of each sample strip, at least 5 data are read for each sample strip, and then the obtained data are averaged.
Flame retardant performance test: flame retardant performance tests were performed on the flame retardant release papers prepared in examples 1 to 8 according to the UL-94 standard. Taking 5 samples with the length and width of 200mm multiplied by 50mm from the flame-retardant release papers prepared in examples 1-8 respectively; the sample is vertically clamped by winding the sample on a rod with the diameter of 12.7mm, the distance from the bottom end of the sample to the top end of the burner tube is 95mm, the blast lamp is vertically arranged, 3s of flame is applied to the sample, the distance from the flame to the sample is evacuated for at least 150mm, so that the continuous burning of the sample is not influenced, the sample is immediately burnt, and 3s of flame is immediately applied to the sample.
The test results are shown in the following table:
as can be seen from the test results of the table, the flame-retardant release paper prepared by the invention has good release performance and is suitable for various use scenes; and the flame retardant property is excellent, and the flame retardant can be applied to various electronic and electric products.
Indeed, the foregoing examples are merely preferred embodiments of the present invention, and any other embodiments not exceeding the scope of the invention are intended to fall within the scope of the invention.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (1)
1. The flame-retardant release paper comprises a raw paper layer and a release layer, wherein the release layer is formed by a release agent, and is characterized by being obtained by the following method:
weighing 120 parts of daokanning SB7458, adding 1500 parts of 120# gasoline, stirring for 5 minutes, 2.5 parts of daokanning 7028, stirring for 5 minutes, 100 parts of daokanning 7210, stirring for 5 minutes, 0.4 part of daokanning 297, stirring for 5 minutes, and 2 parts of daokanning 4000, stirring for 15 minutes; placing the raw materials into a container, fully stirring and mixing for 35 minutes to obtain a release agent; uniformly coating the prepared release agent on the developed aramid paper with the thickness of 200 mu m at the coating speed of 50m/min by using a coating machine, wherein the thickness of the coated release agent is 0.003 mu m; the actual dry silicon content is about 3g/m 2 Then baking in a drying furnace at 70-170 ℃ for 45s and taking out; and winding by adopting a winding mode of winding the central surface to obtain the flame-retardant release paper.
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CN113789131A (en) * | 2021-09-27 | 2021-12-14 | 浙江福莱新材料股份有限公司 | Noctilucent flame-retardant antistatic adhesive tape and preparation method thereof |
CN115651535A (en) * | 2022-11-22 | 2023-01-31 | 江阴通利光电科技有限公司 | Overweight stripping force coating liquid, release film and preparation method |
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