CN104629639B

CN104629639B - A kind of hot soarfing is from interim positioning film

Info

Publication number: CN104629639B
Application number: CN201510037378.3A
Authority: CN
Inventors: 胡先成
Original assignee: Dongguan Huacheng Yufeng Electronic Technology Co Ltd
Current assignee: Dongguan Huacheng Yufeng Electronic Technology Co Ltd
Priority date: 2015-01-26
Filing date: 2015-01-26
Publication date: 2019-04-23
Anticipated expiration: 2035-01-26
Also published as: CN104629639A

Abstract

The present invention discloses a kind of hot soarfing from interim positioning film, includes base, auxiliary layer, adhesive layer and the first protective layer, the base, auxiliary layer, adhesive layer and the first protective layer are successively folded is located at together from lower to upper；The auxiliary layer is made of the raw material of following weight proportion: resin 95%~97%；Filler 0.8%~1%；First auxiliary agent 0.8%~1%；Initiator 0.8%~3%；The adhesive layer is made of the raw material of following weight proportion: acrylic acid -2- Methylethyl 50%~51%；Ethylacrylic acid -2- ethylpropyl 35%~37%；Initiator 0.1%~0.2%；Second auxiliary agent 0.5%~0.7%；Silicon oxypropylene removes auxiliary agent 11.5%~12.5%；Third auxiliary agent 0.8%-1.5%.By using the auxiliary layer and adhesive layer of special formulation; form uniform distribution glue-line; there is bonding force at normal temperature; after being heated to suitable temperature; viscosity will disappear completely in 30 seconds or so time, achieve that simple removing in this way, do not damage the product glued; also noresidue can be very good to protect converted products.

Description

A kind of hot soarfing is from interim positioning film

Technical field

The present invention relates to film field technology, a kind of hot soarfing is referred in particular to from interim positioning film.

Background technique

So far, in the manufacture manufacturing procedure of potsherd, electronic component etc., the temporary fixed or gold of a variety of materials etc. is carried out Belong to the surface protection etc. of plate etc..Bonding part for this purposes is required can be easily from quilt after being completed using purpose It removes and removes on viscous object, it is ideal for meeting the pressure-sensitive adhesive sheet of this requirement.In addition, in recent years, with for improve at The process of product rate reprocesses related demand and increasing, it is desirable that excellent removing removability, fissility can be played when reprocessing Pressure-sensitive adhesive sheet.In turn, even if in the pressure-sensitive adhesive piece field of the strong cementability for residential equipment machine etc., from setting The use purpose for needing to repair repairing etc. in the needs or use process of reprocessing or being bonded for a long time is generated in operation completes it From the viewpoint of recycling afterwards, need the pressure-sensitive adhesive sheet that can be easily peeled off from adherend, can easily from The pressure-sensitive adhesive sheet that each component decomposes.In this way, using on the way as described above, needing offer to have both strongly, reply is various to be made With the easy peelability after the high bonding reliability of purpose and use and further with the pressure-sensitive adhesive piece of various characteristics.

Summary of the invention

In view of this, in view of the deficiencies of the prior art, the present invention aims to provide a kind of hot soarfings from interim Film is positioned, the various easy peelabilities using after the high bonding reliability of purpose and use of reply are had both.

To achieve the above object, the present invention is using following technical solution:

A kind of hot soarfing includes base, auxiliary layer, adhesive layer and the first protective layer from interim positioning film, the base, Auxiliary layer, adhesive layer and the first protective layer are successively folded be located at together from lower to upper；

The auxiliary layer is made of the raw material of following weight proportion: resin 95%~97%；Filler 0.8%~1%；First auxiliary agent 0.8%~1%；Initiator 0.8%~3%；

The adhesive layer is made of the raw material of following weight proportion: acrylic acid -2- Methylethyl 50%~51%；Ethyl propylene Acid -2- ethylpropyl 35%~37%；Initiator 0.1%~0.2%；Second auxiliary agent 0.5%~0.7%；Silicon oxypropylene removes auxiliary agent 11.5%~12.5%；Third auxiliary agent 0.8%-1.5%.

Preferably, the resin is methacrylic acid and its derivative.

Preferably, the filler is calcium stearate.

Preferably, first auxiliary agent is titanium dioxide.

Preferably, second auxiliary agent is barium sulfate.

Preferably, the bottom surface of the base is provided with positioning glue-line, and the bottom surface for positioning glue-line is provided with the second protective layer.

Preferably, the base is PET film.

The present invention has obvious advantages and beneficial effects compared with the existing technology, specifically, by above-mentioned technical proposal Known to:

By using the auxiliary layer and adhesive layer of special formulation, uniform distribution glue-line is formed, there is bonding force at normal temperature, After being heated to suitable temperature, viscosity will disappear completely in 30 seconds or so time, achieve that simple removing in this way, do not damage The product glued, also noresidue can be very good to protect converted products, be widely used in accurate frangible chip processing, The chip-type laminated ceramic condenser of MLCC, the positioning cutting of MLCI chip inductor, semiconductor wafer surface processing, electronics and opto-electronics portion Part production processing, LED and TP touch panel, glass thinning, grinding and polishing, LED positional dissection, grinding and polishing, sapphire substrate Thinning grind processing procedure, copper base graphene transfer and carbon nanotubes transfer etc..

In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to this hair It is bright to be described in detail.

Detailed description of the invention

Fig. 1 is sectional view of the invention；

Fig. 2 is the sectional view of another structure of the invention.

Description of drawing identification:

10, base 20, auxiliary layer

30, adhesive layer 40, the first protective layer

50, glue-line 60, the second protective layer are positioned.

Specific embodiment

The present invention discloses a kind of hot soarfing from interim positioning film, as shown in Figure 1, including base 10, auxiliary layer 20, bonding Layer 30 and the first protective layer 40, the base 10, auxiliary layer 20, adhesive layer 30 and the first protective layer 40 are successively folded set from lower to upper Together, which is single side film, certainly also can be double coated film as a result, as shown in Fig. 2, the base 10 Bottom surface is provided with positioning glue-line 50, and the bottom surface of positioning glue-line 50 is provided with the second protective layer 60.

The base 10 is PET film, and the present invention selects biaxial tension PET film, PET film performance requirement；Mechanical performance Good, tensile strength wants high, and folding, number of bends will reach 150,000 times, and electrical isolation grade is excellent, to reach E grades of exhausted raw material, resistance to 150 degrees Celsius of temperature, 30 minutes indeformable, the positive and negative 2um of PET film thickness error.

The auxiliary layer 20 is made of the raw material of following weight proportion: resin 95%~97%；Filler 0.8%~1%；First helps Agent 0.8%~1%；Initiator 0.8%~3%；The auxiliary layer 20 selects resin, filler, the first auxiliary agent and initiator to be emulsified Production.The resin that the present invention selects is that methacrylic acid and its derivative (such as lipid, amides) polymerize a manufactured resinoid, Generally linear polymer can be homopolymer, be also possible to copolymer, can dissolve in appropriate solvent, this hair Bright is exactly that ethyl acetate is selected to make solvent, prepares resin emulsion by it, and big layer is for protecting glue-line after solvent volatilization, it is desirable that Off-type force is that the aggregation of molecule forms a film, and when film forming does not have cross-linking reaction, should be by resin in order to realize preferable physical and chemical performance Molecular weight do big physical and chemical performance and processing performance compares balance, so to add filler and the first auxiliary agent, filler and first The addition of auxiliary agent in the case where so that the surface of resin molded body is not formed surface layer, does not generate shrink mark, the deformation such as warpage, filler It is titanium dioxide for the first auxiliary agent of calcium stearate, as the use level of filler, even if the work for it can also be given full play on a small quantity With.The off-type force of auxiliary layer is 20-50g, and auxiliary layer will be combined with PET film will securely, no transfer.

The adhesive layer 30 is made of the raw material of following weight proportion: acrylic acid -2- Methylethyl 50%~51%；Ethyl propylene Acid -2- ethylpropyl 35%~37%；Initiator 0.1%~0.2%；Second auxiliary agent 0.5%~0.7%；Silicon oxypropylene removes auxiliary agent 11.5%~12.5%；Third auxiliary agent 0.8%-1.5%.Second auxiliary agent is barium sulfate, which is epoxy crosslinking agent.

It is propylene rouge and metering system rouge using polymerized monomer when making adhesive layer 30, hydroxyethyl methacrylate, second rouge, Wherein acrylic acid -2- methyl acetic acid (EBA) and ethylacrylic acid -2- ethylpropyl (EBMH) are principal monomer, are used cooperatively third Olefin(e) acid second rouge (HA) and methyl methacrylate (BMA).Its methacrylic acid -2- methyl second rouge (EBMH), can be improved adhesive It is separation temperature.The total amount of acrylic acid -2- methyl second rouge (EBA) and ethylacrylic acid -2- ethylpropyl (EBMH) accounts for monomer The 25% of total amount and 36%, in order to be crosslinked polymer moieties, using the monomer with group, such as acrylic acid -2- methyl second rouge (EBA) hydroxyethyl methacrylate, ETHYL CYANOACRYLATE, methacrylic acid etc., preferably ETHYL CYANOACRYLATE and hydroxyethyl methacrylate second Rouge is easy to use special crosslinking agent to be crosslinked in this way, it is several have can the monomer of reactive functionality can also share together, Initiators for polymerization can be organic peroxide, benzoyl peroxide, isopropyl benzene hydroperoxide, and many inertia are organic molten Agent may be used as the solvent of polymerization reaction.

In view of the dissolubility to acrylic polymer, it is easily dried after coating and the factors such as film forming, selection methyl Benzene, dimethylbenzene, ethyl acetate, the organic solvents such as butanone, can be used wherein two kinds and two or more mixed solvents simultaneously plus Enter, barium sulfate 0.5%, silicon oxypropylene remover 15%, 0.9% third auxiliary agent, polymerization initiator 1%, the reaction time is according to reaction temperature Degree and reactivity determine.It generally requires -48 hours 24 hours, after obtained polymer solution is cooling, is applied using back scraper type is covered On cloth to biaxially oriented polyester film, the thickness of film may be selected to be 0.75-0.1mm, drying channel of coating machine, temperature control 55 degree- 95 degree, drying time is generally not less than 6 minutes, and time very few solvent is not easy whole volatilizations, and cross-linking reaction carries out not Safety, influences the cementability of pressure-sensitive adhesive film, and drying time is too long, influences effect of the hot soarfing from interim positioning glue removing.

Evaluation test 1: will obtain hot soarfing from interim positioning film and take out width 20mm, and long 20mm is bonded on stainless steel, Peeling force 80g is measured, is then placed in baking oven, 30 seconds, viscosity disappears, and reaches ideal effect.

Evaluation test 2: the hot soarfing of acquisition is taken into 150*150 (mm) one from interim positioning film, with laminated ceramic capacitor Bar block bonding, is sliced with cutter special, and range estimation confirms cutting bar block, and cutting size is accurate, is not shifted, is not fallen piece, puts It is taken out after 130 degree of baking ovens heat 1-3 minute, it is clean to fall piece, noresidue, convenience sampling observation, and piece holds that there is no crackles, uses up It learns micro- sem observation cutting sheet appearance side and does not generate fragment phenomenon.

The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within Within protection scope of the present invention.

Claims

1. a kind of hot soarfing is from interim positioning film, it is characterised in that: include base, auxiliary layer, adhesive layer and the first protection Layer, the base, auxiliary layer, adhesive layer and the first protective layer are successively folded be located at together from lower to upper；

The auxiliary layer is made of the raw material of following weight proportion: resin 95%~97%；Filler 0.8%~1%；First auxiliary agent 0.8% ~1%；Initiator 0.8%~3%；The resin is methacrylic acid and its derivative, and the filler is calcium stearate, described First auxiliary agent is titanium dioxide；

The adhesive layer is made of the raw material of following weight proportion: acrylic acid -2- Methylethyl 50%~51%；Ethylacrylic acid -2- Ethylpropyl 35%~37%；Initiator 0.1%~0.2%；Second auxiliary agent 0.5%~0.7%；Silicon oxypropylene removing auxiliary agent 11.5%~ 12.5%；Third auxiliary agent 0.8%-1.5%.

2. a kind of hot soarfing as described in claim 1 is from interim positioning film, it is characterised in that: second auxiliary agent is sulfuric acid Barium.

3. a kind of hot soarfing as described in claim 1 is from interim positioning film, it is characterised in that: the bottom surface of the base is provided with Glue-line is positioned, the bottom surface for positioning glue-line is provided with the second protective layer.

4. a kind of hot soarfing as described in claim 1 is from interim positioning film, it is characterised in that: the base is PET film.