CN113512255B - Adsorption reinforcing layer suitable for mucosa reduction, and preparation method and application thereof - Google Patents
Adsorption reinforcing layer suitable for mucosa reduction, and preparation method and application thereof Download PDFInfo
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
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- C09J2423/00—Presence of polyolefin
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- C09J2423/106—Presence of homo or copolymers of propene in the substrate
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- C09J2479/00—Presence of polyamine or polyimide
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Abstract
The invention discloses an adsorption reinforcing layer suitable for a mucosa reducing membrane, and a preparation method and application thereof, wherein raw materials for preparing the adsorption reinforcing layer comprise the following components in parts by weight: 80-90 parts of matrix resin, 5-10 parts of filler, 0.1-2 parts of opening agent and 0.1-2 parts of slip agent. The adsorption reinforcing layer provided by the invention can be used for increasing the adsorption adhesive force of the mucosa to an adhered material in cooperation with the adhesive layer of the mucosa, but does not cause external force and adhesive damage to the material, has high adhesive force, high stripping and recycling performance, and also has high temperature resistance, and can improve the high temperature resistance and the thermal stability of the whole mucosa.
Description
Technical Field
The invention relates to the technical field of anti-adhesion membranes, in particular to an adsorption reinforcing layer suitable for an anti-adhesion membrane and a preparation method and application thereof.
Background
In the production and manufacturing process of electronic industrial products, when tiny components such as wafers, silicon wafers, packaging substrates, ceramics, glass, crystals, fine electronic parts, metal plates and the like are processed, the tiny components need to be fixed by using an adhesive tape so as to avoid damage caused by looseness in the cutting process. In addition, in the process of etching, washing or coating, when the local surface of the component is polished, the adhesive tape is required to cover other parts which do not need to be processed so as to avoid the influence, and the adhesive tape is peeled off after the processing is finished. The adhesive tape used for fixing or masking needs to provide high adhesive strength during processing, resulting in high peeling force during peeling, which results in easy destruction of the component device when the adhesive tape is removed. However, if the adhesive force of the tape is small, the stability of the component cannot be ensured.
In the prior art, high temperature resistant protective film tapes and UV detackifying tapes are commonly used. When the high-temperature resistant protective film adhesive tape is low in initial adhesion, the sheet is easy to fall off, the adhesive force is too large, the phenomenon of difficult tearing and damage can be caused, the molecular chain of the colloid is damaged, and then residual glue is left on the surface of the component, the surface pollution is caused, and the product quality is influenced.
The UV visbreaking adhesive tape is also common in the prior art, the UV visbreaking film keeps high viscosity during fixing, so that the position of a component is stable, the UV light treatment is carried out on the UV visbreaking film after the cutting operation is completed, the viscosity is quickly reduced to low viscosity from high viscosity, and then the UV visbreaking film on the component is torn off. However, the UV anti-adhesive protective film has the following problems in practical use: 1. after UV irradiation, the bonding strength of the pressure-sensitive adhesive and the base film is also reduced, so that the pressure-sensitive adhesive is separated from the base film to cause adhesive residue; 2. the balance of the peeling strength before and after picking up the components is that the peeling strength before picking up is not enough, or that the components are difficult to peel and easy to glue residue during picking up.
Therefore, new technologies are urgently needed to solve the problems of the prior art.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects of the prior art, the invention aims to provide the adsorption reinforcing layer suitable for the anti-adhesion film, so that the prepared anti-adhesion film has the characteristics of strong adsorption force, easiness in stripping, no adhesive residue and strong stability.
The technical scheme of the invention is as follows:
in order to achieve the above object, the present invention provides an adsorption reinforcing layer suitable for a mucosa reduction film, wherein the raw material for preparing the adsorption reinforcing layer comprises the following components in parts by weight: 80-90 parts of matrix resin, 5-10 parts of filler, 0.1-5 parts of slip agent, 1-5 parts of fatty acid amide and 0.01-0.5 part of electrostatic electret.
Further, the raw materials of the mucosa-reducing resin composition comprise the following components in parts by weight: 80-90 parts of matrix resin, 5-8 parts of filler, 1-3 parts of slip agent, 1-5 parts of fatty acid amide and 0.1-0.5 part of electrostatic electret.
Still further, the raw materials of the resin composition for reducing the mucosa comprise the following components in parts by weight: 80-90 parts of matrix resin, 7-8 parts of filler, 1-3 parts of slip agent, 2-3 parts of fatty acid amide and 0.2-0.3 part of electrostatic electret.
Further, the matrix resin is selected from one or more of PP (polypropylene), PI (polyimide), PMP (poly 4-methyl-1-pentene), PET (polyethylene terephthalate), PTFE (polytetrafluoroethylene), PAA (polyarylethynyl).
Further, the electrostatic electret is fluorocarbon resin.
Still further, the hydroxyl value of the fluorocarbon resin is more than 50mgKOH/g, and the fluorine content is 20-30wt%.
Further, the filler is selected from one or more of fischer-tropsch wax, polyethylene wax.
Further, the fatty acid amide is selected from one or more of hexadecanoic acid amide, erucic acid amide and oleic acid amide.
Further, the slip agent is polysiloxane and derivatives thereof.
In another aspect of the present invention, a method for preparing an adsorption reinforcing layer suitable for a mucosa reduction film is provided, which comprises the following steps: putting all the raw materials in parts by weight into a double-screw extruder, continuously conveying compressed air into the double-screw extruder, mixing at a high speed for 1-5h, extruding at a process temperature of 80-300 ℃ after fully and uniformly mixing, cooling by water, winding, and cutting by a cutting machine to obtain the resin composition suitable for reducing the mucosa.
Further, the compressed air is air which sequentially passes through an air compressor and an air heater, and the apparent air speed is 1-2m/s.
Furthermore, an insulating protective layer is arranged on the inner wall of the extrusion channel of the double-screw extruder.
Furthermore, the adsorption reinforcing layer prepared by the invention can further improve the electrostatic capacity through electrostatic electret equipment.
The invention also provides the application of the adsorption strengthening layer suitable for the anti-adhesion film in the field of anti-adhesion films.
The invention has the beneficial effects that:
(1) The adsorption reinforcing layer suitable for the mucosa reduction can generate a remarkable electrostatic adsorption effect, and can generate stronger adhesive force to other bonded materials by cooperating with other bonding layer materials of the mucosa reduction.
(2) The adsorption reinforcing layer has high temperature resistance, and can improve the high temperature resistance and the thermal stability of the whole material.
(3) The anti-adhesion film formed by the adsorption reinforcing layer and other bonding layers can not damage the bonded material after being peeled off, can be easily peeled off and can be repeatedly used.
Drawings
FIG. 1 is a projected infrared image of an adsorption enhancement layer prepared in example 1;
FIG. 2 is a DSC of the adsorption reinforcement layer obtained in example 1.
Detailed Description
The invention will be illustrated below with reference to specific embodiments. It should be noted that the following examples are illustrative of the present invention, and are not intended to limit the present invention. Other combinations and various modifications within the spirit or scope of the present invention may be made without departing from the spirit or scope of the present invention.
Example 1
An adsorption strengthening layer suitable for a mucosa reducing film comprises the following components in parts by weight: 90 parts of PP, 5 parts of Fischer-Tropsch wax, 3 parts of polysiloxane, 2 parts of hexadecanoic acid amide and 0.2 part of fluorocarbon resin.
The preparation method of the adsorption reinforcing layer comprises the following steps: putting all the raw materials in parts by weight into a double-screw extruder, continuously conveying compressed air into the double-screw extruder, mixing at a high speed for 1h, after fully and uniformly mixing, extruding at a process temperature of 140 ℃, cooling by water, winding, and cutting by a cutting machine to obtain the adsorption reinforcing layer suitable for the mucosa reduction.
Example 2
An adsorption strengthening layer suitable for a mucosa reducing film comprises the following components in parts by weight: 80 parts of PI, 10 parts of Fischer-Tropsch wax, 3 parts of polysiloxane, 4.5 parts of erucamide and 0.3 part of fluorocarbon resin.
The preparation method of the adsorption reinforcing layer comprises the following steps: putting all the raw materials in parts by weight into a double-screw extruder, continuously conveying compressed air into the double-screw extruder, mixing at a high speed for 2.5h, after fully and uniformly mixing, extruding at a process temperature of 80 ℃, cooling by water, winding, and cutting by a cutting machine to obtain the adsorption reinforcing layer suitable for the mucosa reduction.
Example 3
An adsorption strengthening layer suitable for mucosa reduction comprises the following components in parts by weight: 85 parts of PP, 7.5 parts of Fischer-Tropsch wax, 3 parts of polysiloxane, 1 part of erucamide and 0.3 part of fluorocarbon resin.
The preparation method of the adsorption reinforcing layer comprises the following steps: putting all the raw materials in parts by weight into a double-screw extruder, continuously conveying compressed air into the double-screw extruder, mixing at a high speed for 5 hours, after fully and uniformly mixing, extruding at a process temperature of 90 ℃, cooling by water, winding, and cutting by a cutting machine to obtain the adsorption reinforcing layer suitable for the mucosa reduction.
Example 4
An adsorption strengthening layer suitable for a mucosa reducing film comprises the following components in parts by weight: 80 parts of PP, 9.8 parts of polyethylene wax, 3 parts of polysiloxane, 1 part of oleamide and 0.2 part of fluorocarbon resin.
The preparation method of the adsorption reinforcing layer comprises the following steps: putting all the raw materials in parts by weight into a double-screw extruder, continuously conveying compressed air into the double-screw extruder, mixing at a high speed for 3 hours, after fully and uniformly mixing, extruding at a process temperature of 100 ℃, cooling by water, winding, and cutting by a cutting machine to obtain the adsorption reinforcing layer suitable for the mucosa reduction.
Example 5
An adsorption strengthening layer suitable for a mucosa reducing film comprises the following components in parts by weight: 90 parts of PI, 2 parts of polyethylene wax, 1 part of polysiloxane, 2 parts of hexadecanoic acid amide and 0.2 part of fluorocarbon resin.
The preparation method of the adsorption reinforcing layer comprises the following steps: putting all the raw materials in parts by weight into a double-screw extruder, continuously conveying compressed air into the double-screw extruder, mixing at a high speed for 2 hours, after fully and uniformly mixing, extruding at a process temperature of 90 ℃, cooling by water, winding, and cutting by a cutting machine to obtain the adsorption reinforcing layer suitable for the mucosa reduction.
Comparative example 1
A film comprising the following components in parts by weight: 90 parts of PP, 5 parts of Fischer-Tropsch wax, 3 parts of polysiloxane and 2 parts of hexadecanoic acid amide.
The preparation method is the same as that of example 1.
Comparative example 2
A film comprising the following components in parts by weight: 90 parts of PP (polypropylene), 5 parts of Fischer-Tropsch wax, 3 parts of polysiloxane, 2 parts of hexadecanoic acid amide and 1 part of fluorocarbon resin.
The preparation method is the same as in example 1.
Application example:
the films prepared in examples 1-5 and suitable for the adsorption reinforcing layer and comparative examples 1-2 are combined with a flexible substrate layer and a UV adhesive layer to prepare a complete anti-adhesive film, and the anti-adhesive film sequentially comprises the flexible substrate layer, the adsorption reinforcing layer and the UV adhesive layer from top to bottom. The thickness of the flexible base material layer is 30 μm; the thickness of the adsorption reinforcing layer is 40 micrometers, the thickness of the UV glue layer is 20 micrometers, and the total thickness of the anti-adhesion film is 90 micrometers.
The flexible substrate layer comprises the following raw materials in parts by weight: 90 parts of PET, 4 parts of Fischer-Tropsch wax, 1 part of talcum powder and 5 parts of polysiloxane.
The raw materials of the UV adhesive layer comprise the following components in parts by weight: 75 parts of polyacrylate pressure-sensitive adhesive, 18 parts of polyurethane (methyl) acrylate, 1 part of polyamide curing agent, 1 part of free radical type photoinitiator and 5 parts of dioctyl phthalate.
The preparation method of the mucosa reducing film comprises the following steps:
(1) Placing the raw materials of the flexible substrate layer in a double-screw extruder, mixing for 2h at a high speed, and after fully and uniformly mixing, carrying out extrusion molding at a process temperature of 80 ℃ to obtain the flexible substrate layer;
(2) Adsorption strengthening layer of anti-sticking film
Rolling the flexible base material layer on the surface of the corona-treated flexible base material layer;
(4) And in a yellow light laboratory, uniformly mixing the raw materials of the UV layer according to the parts by weight, coating the raw materials on the other surface of the adsorption reinforcing layer, and drying and shaping to obtain the mucosa reducing film.
The conditions of the corona treatment in the step (3) are as follows: the voltage is 10kV, and the time is 60min.
The drying treatment conditions in the step (4) are as follows: oven drying at 60 deg.C for 30min.
The following performance tests were performed on the anti-tack films prepared in examples 1 to 5 and comparative examples 1 to 2:
the initial adhesion is determined according to GB/T4852-847; the permanent adhesion test is carried out at 130 ℃ according to the GB/T4851-1998 sample preparation standard; 180 DEG peel strength according to GB/T2792-1998 standard; sticking the to-be-detected adhesive reduction film to a standard mirror surface stainless steel plate, placing the standard mirror surface stainless steel plate in a constant-temperature oven at 130 ℃, peeling off the adhesive tape every 30min to check the damage of the adhesive layer, and calculating the high-temperature resistant time according to the time when the residual adhesive shadow appears after peeling; the test results are shown in table 1 below:
table 1:
as can be seen from the above table, when the adsorption reinforcing layers of examples 1 to 5 are applied to the anti-adhesive film, the corresponding anti-adhesive film has a good initial adhesion, the permanent adhesion reaches 87 to 95min, and the anti-high temperature time at 130 ℃ is 75 to 80min, which indicates that the adsorption reinforcing layer prepared by the invention is suitable for manufacturing the anti-adhesive film with good permanent adhesion and high temperature permanent adhesion; in addition, when the absorption strengthening layers prepared in examples 1-5 are applied to the anti-adhesive film, the 180 DEG peel strength reaches 8.8-9.4 N.25 mm- 1 After the adsorption reinforcing layer is used, no adhesive residue exists, which shows that the adsorption reinforcing layer prepared by the invention can enable the anti-adhesive film to have higher peeling strength when being applied to the anti-adhesive film, and after the adsorption reinforcing layer is used, the effects of easy peeling and no adhesive residue after peeling can be achieved; as can be seen from the comparison between comparative example 1 and the comparison between comparative example 2 and example 2, the adsorption reinforcing layer prepared by the invention has good effects on the permanent adhesion and high temperature resistance of the mucosa, and reduces the occurrence of adhesive residue.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and equivalent changes and modifications made according to the spirit of the present invention should be covered thereby.
Claims (4)
1. The adsorption reinforcing layer suitable for the mucosa reduction is characterized in that raw materials for preparing the adsorption reinforcing layer comprise the following components in parts by weight: 80-90 parts of matrix resin, 5-10 parts of filler, 0.1-2 parts of slip agent, 1-5 parts of fatty acid amide and 0.01-0.5 part of electrostatic electret;
the electrostatic electret is fluorocarbon resin;
the matrix resin is selected from one or more of PP, PI, PMP, PET, PTFE and PAA;
the hydroxyl value of the fluorocarbon resin is more than 50mgKOH/g, and the fluorine content is 20-30 wt%;
the filler is selected from one or more of Fischer-Tropsch wax and polyethylene wax;
the fatty acid amide is selected from one or more of hexadecanoic acid amide, erucic acid amide and oleic acid amide;
the slip agent is polysiloxane and derivatives thereof.
2. The method for preparing an adsorption strengthening layer suitable for a mucosa according to claim 1, comprising the steps of: putting all the raw materials in parts by weight into a double-screw extruder, continuously conveying compressed air into the double-screw extruder, mixing at a high speed for 1-5h, extruding at a process temperature of 80-300 ℃ after fully and uniformly mixing, cooling by water, winding, and cutting by a cutting machine to obtain the adsorption reinforcing layer suitable for the mucosa reduction.
3. The method of claim 2 wherein the compressed air is air sequentially passed through an air compressor and an air heater, and the superficial air velocity is 1-2m/s.
4. Use of an adsorptive reinforcement layer suitable for use in a mucosa according to claim 1 in the field of a mucosa.
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| US20020090509A1 (en) * | 2001-01-09 | 2002-07-11 | 3M Innovative Properties Company | Electrostatic sheets with adhesive |
| US20040040652A1 (en) * | 2002-08-30 | 2004-03-04 | 3M Innovative Properties Company | Methods for electrostatically adhering an article to a substrate |
| US20050000642A1 (en) * | 2003-07-03 | 2005-01-06 | 3M Innovative Properties Company | Cling articles |
| WO2005009076A1 (en) * | 2003-07-22 | 2005-01-27 | Toho Kasei Co., Ltd. | Material for heat-resistant electret and heat-resistant electret |
| EP2159222A1 (en) * | 2008-08-27 | 2010-03-03 | Bayer MaterialScience AG | Additives to improve the electret behaviour of polycarbonates |
| CN111234719A (en) * | 2020-03-13 | 2020-06-05 | 安徽荣泽科技有限公司 | UV visbreaking film |
| CN111235666B (en) * | 2020-03-19 | 2021-04-02 | 道恩高材(北京)科技有限公司 | Long-acting electrostatic-holding melt-blown polypropylene electret and preparation method and application thereof |
| CN111848885B (en) * | 2020-06-19 | 2022-09-02 | 上海鲁聚聚合物技术有限公司 | Fluorine-containing organic electret, preparation method thereof and application thereof in electret master batch |
| CN111849074A (en) * | 2020-08-04 | 2020-10-30 | 广东聚石化学股份有限公司 | Electret master batch and preparation method and application thereof |
| CN112175288A (en) * | 2020-09-22 | 2021-01-05 | 江苏金陵奥普特高分子材料有限公司 | Composite high-fluidity electret master batch and preparation method thereof |
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