KR20170040869A - The pvc sticky tape for protecing surface having fire retardant - Google Patents
The pvc sticky tape for protecing surface having fire retardant Download PDFInfo
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- KR20170040869A KR20170040869A KR1020150140058A KR20150140058A KR20170040869A KR 20170040869 A KR20170040869 A KR 20170040869A KR 1020150140058 A KR1020150140058 A KR 1020150140058A KR 20150140058 A KR20150140058 A KR 20150140058A KR 20170040869 A KR20170040869 A KR 20170040869A
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- pvc
- sensitive adhesive
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- C09J7/0282—
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- 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
- C09J201/00—Adhesives based on unspecified macromolecular compounds
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/306—Applications of adhesives in processes or use of adhesives in the form of films or foils for protecting painted surfaces, e.g. of cars
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a surface protective adhesive tape for a coated steel sheet of a ship, and more particularly to an adhesive tape for protecting a painted surface of a steel sheet coated with various paints used for ship drying.
The steel sheet used for drying marine vessels is painted with various coatings such as urethane, epoxy and silicone over 3 ~ 7 times. The paint is dried before being assembled and stored or left for a certain period for the process. In this case Foreign matter (iron powder, dust, sand, other substances, etc.) and paint surface damage due to ultraviolet rays, wind, brine, water and the like. The present invention relates to a surface-protecting PVC adhesive tape for a coated steel sheet of a ship, which is attached to a coated steel sheet to protect the surface thereof.
Generally, the flexible PVC film, which is mainly used for protective tape, has excellent flexibility and shows strong tensile rigidity and elongation, and is useful for protecting the indentation and scratches on the surface of the adherend during processing (bending) of the steel sheet Lt; / RTI > In addition, PVC has a flame retardant property because it contains a large amount of chlorine atoms. When a certain amount of flame retardant is added, it shows excellent flame retardant performance. In the case of soft PVC, plasticizers (DOP, DINP, DOTP, DOIP, etc.) are used and this plasticizer can be transferred from the PVC film to the paint surface, which can damage the paint surface.
In addition, the coating surface of the ship has a very rough shape, so that the adhesion of the protective tape is very poor. Therefore, it is necessary to increase the plasticizer content to give more softness than the conventional soft PVC film, and in this case, the contamination phenomenon of the coating surface due to the migration of the plasticizer becomes easier.
Further, in order to increase the adhesion to the rough coating surface, a pressure sensitive adhesive of excellent adhesion is used, and most of them use a rubber pressure sensitive adhesive or an acrylic pressure sensitive adhesive having a molecular weight (Mw) of 300,000 or less.
At this time, the adhesion is improved but the holding force is relatively decreased. As a result, when the time passes after the adhesion, the extrusion occurs from the attachment end due to the shrinkage due to the shear stress of the film.
In addition, rubber adhesives and low molecular weight pressure sensitive adhesives can easily be broken by ultraviolet rays when left outdoors, causing contamination of the adhesive, and can not prevent the plasticizer from being transferred due to low curing density. . Therefore, it is necessary to perform the re-coloring operation after removing the painted steel sheet due to the various contamination phenomenon, and the loss due to this can be said to be heavy.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a pressure sensitive adhesive composition which has excellent hardening density and excellent adhesiveness due to a linear structure adhesive composition, This minimizes the floating phenomenon caused by the shrinkage phenomenon of the film, prevents the migration phenomenon of the plasticizer, minimizes the contamination on the surface of the coating, and provides excellent durability to minimize surface contamination by UV rays. V-shaped adhesive tape.
In order to achieve the above object, the present invention provides a surface protective PVC adhesive tape for a coated steel sheet of a ship, comprising a PVC (polyvinyl chloride) resin, a plasticizer, a flame retardant, a UV stabilizer, Vinyl chloride) film layer; And a pressure-sensitive adhesive layer formed on the film layer and including a pressure-sensitive adhesive resin, a tackifier, and a curing agent.
Preferably, the adhesive resin is a resin having a linear structure having flexibility of 300,000 or more in molecular weight (Mw), and at least one adhesive resin selected from the group consisting of an acrylic flame retardant, an urethane flame retardant, a silicone flame retardant, and a rubber adhesive resin is used.
Preferably, the PVC (polyvinyl chloride) film layer comprises 20 to 50 parts by weight of a plasticizer, 5 to 30 parts by weight of a flame retardant, 3 to 6 parts by weight of a UV stabilizer and 3 to 6 parts by weight of a heat stabilizer in 100 parts by weight of the PVC resin Wherein the pressure-sensitive adhesive layer comprises 5 to 50 parts by weight of a tackifier to 100 parts by weight of the pressure-sensitive adhesive resin, and 0.1 to 10 parts by weight of the curing agent.
As described above, the present invention is a product to which a PVC (polyvinyl chloride) film layer containing a flame retardant and a pressure-sensitive adhesive containing a tackifier resin having a high molecular weight (molecular weight of 300,000 or more) and a tackifier are applied. That is, in the pressure-sensitive adhesive layer of the present invention, a pressure-sensitive adhesive resin having a molecular weight (Mw) of 300,000 or more is applied, the hardening density is increased and the holding force is increased, and the adhesion and adhesion to various types of adherend There is no residue of the adhesive on the surface, no damage on the painting surface, no discoloration of the coating, close contact with the surface to prevent foreign matter from entering, and minimizing lifting of the tape due to rain, wind and other external environment with high holding power.
The pressure-sensitive adhesive tape of the present invention has excellent curing density and excellent adhesion due to the linear structure of pressure-sensitive adhesive, minimizes the contamination of the paint surface by preventing transfer of the plasticizer, and has excellent durability, And also has an excellent adhesion property, which is excellent in adhesion to a rough coating surface and has a good holding force, thereby minimizing lifting due to shrinkage of the film.
Hereinafter, the surface protective PVC adhesive tape for a coated steel sheet of the present invention will be described in more detail.
A surface protective PVC adhesive tape for a coated steel sheet of the present invention comprises a flexible PVC film layer and an adhesive layer, and is manufactured by coating a releasing agent on the upper layer of the PVC film layer or by laminating release paper to the pressure-sensitive adhesive layer.
PVC (polyvinyl chloride) film layers include PVC (polyvinyl chloride) resins, plasticizers, flame retardants, UV stabilizers, and heat stabilizers. The thickness of the PVC film layer is preferably 50 to 40 micrometers.
DOP, DOTP, DINP, DOIP, etc. may be used as the plasticizer, and 20 to 50 parts by weight of the plasticizer may be used per 100 parts by weight of the PVC resin.
The flame retardant is at least one flame retardant selected from the group consisting of halogen flame retardants, phosphorus flame retardants, inorganic flame retardants, and antimony trioxide, and is used in an amount of 5 to 30 parts by weight based on 100 parts by weight of the PVC resin. In the present invention, since the PVC film layer includes a flame retardant agent, it plays a role of suppressing the occurrence of fire due to the flame generated when the iron plate is welded.
The UV stabilizer or the UV absorber is used in an amount of 3 to 6 parts by weight based on 100 parts by weight of the PVC resin.
The color of the soft PVC film layer is transparent and colored depending on the application.
On the other hand, the adhesive layer is applied on top of the soft PVC film layer. As the adhesive layer, at least one adhesive resin selected from the group consisting of an acrylic adhesive resin, a urethane adhesive resin, a silicone adhesive resin, and a rubber adhesive resin is used.
The adhesive resin is preferably a resin having a linear structure having a flexibility of 300,000 or more in molecular weight (Mw). That is, in the present invention, a pressure-sensitive adhesive resin having a molecular weight (Mw) of 300,000 or more is applied, the holding force is increased while the hardening density is improved, and the adhesive property and adhesion to various types of adherend (coated steel sheet) There is no damage to the surface of the coating or discoloration of the coating, adherence to the surface prevents foreign matter from entering, and minimizes lifting of the tape due to rain, wind or other external environment with high holding power.
Preferably, the pressure-sensitive adhesive layer includes a tackifier and a curing agent in addition to the pressure-sensitive adhesive resin. 5 to 50 parts by weight of a tackifier for 100 parts by weight of the adhesive resin, and 0.1 to 10 parts by weight of a curing agent.
The tackifier is added to increase the tackiness on the surface of the composition. As examples of the tackifier, at least one tackifier selected from the group consisting of a guaroline-indene resin, a terpene-phenol resin, polybutene, and hydrogenated rosin ester is used.
The curing agent is added in an amount of 0.1 to 10 parts by weight per 100 parts by weight of the adhesive resin, and is used for curing the adhesive resin. As the curing agent, at least one curing agent selected from the group consisting of an isocyanin curing agent, an aziridine curing agent, and an epoxy curing agent is used.
The coating thickness of the pressure-sensitive adhesive is preferably set to 3 to 30 microns as a drying standard of the pressure-sensitive adhesive.
≪ Example 1 >
When the PVC resin is 100 parts by weight, the plasticizer content is 40 parts by weight, the inorganic flame retardant is added in an amount of 20 parts by weight, and the UV stabilizer is added in an amount of 6 parts by weight. The pressure-sensitive adhesive layer comprised 100 parts by weight of acrylic pressure-sensitive adhesive resin having a molecular weight of 300,000 or more and 1 part by weight of an isocyanic curing agent and 20 parts by weight of a tackifier.
A surface protection tape for a coated steel sheet was prepared by forming a flexible PVC film to a thickness of 10 [mu] m with a dry thickness of 200 [mu] m and applying a releasing agent to the upper layer.
≪ Example 2 >
When the PVC resin is 100 parts by weight, the plasticizer content is 50 parts by weight, the inorganic flame retardant is added in an amount of 25 parts by weight, the UV stabilizer is added in 3 parts by weight, and the red pigment is added in 5 parts by weight. The pressure-sensitive adhesive layer was composed of 100 parts by weight of an acrylic pressure-sensitive adhesive resin having a molecular weight of 300,000 or more, 0.5 parts by weight of an isocyanic curing agent, and 20 parts by weight of a tackifier.
A soft PVC film was formed at a thickness of 350 로, a dry thickness of the adhesive was 15 탆, and a release agent was applied to the upper layer to prepare a surface protective tape for a coated steel sheet.
≪ Example 3 >
When the PVC resin is 100 parts by weight, the plasticizer content is 25 parts by weight, 30 parts by weight of the brominated flame retardant is added, 5 parts by weight of the UV stabilizer is added, and 6 parts by weight of the yellow pigment is added to constitute the film layer. The adhesive layer was prepared by adding 1 part by weight of an isocyanic curing agent to 100 parts by weight of an acrylic adhesive resin having a molecular weight of 300,000 or more and 20 parts by weight of a tackifier.
A surface protection tape for a coated steel sheet was prepared by forming a flexible PVC film to a thickness of 10 [mu] m with a dry thickness of 200 [mu] m and applying a releasing agent to the upper layer.
<Example 4>
When the PVC resin is 100 parts by weight, the plasticizer content is added in an amount of 30 parts by weight, 15 parts by weight of phosphorus flame retardant is added, 10 parts by weight of a bromine-based flame retardant is added, 5 parts by weight of a UV stabilizer is added, Layer. The pressure-sensitive adhesive layer was prepared by adding 1.5 parts by weight of an isocyanic curing agent to 100 parts by weight of an acrylic pressure-sensitive adhesive resin having a molecular weight of 300,000 or more and 15 parts by weight of a tackifier.
A surface protective tape for a coated steel sheet was prepared by forming a soft PVC film at a thickness of 300 袖 m, forming a dry thickness of 10 袖 m as a pressure-sensitive adhesive, and applying a releasing agent to the upper layer.
≪ Example 5 >
When the PVC resin is 100 parts by weight, the plasticizer content is 40 parts by weight, 15 parts by weight of the inorganic flame retardant is added, 10 parts by weight of the brominated flame retardant is added and 5 parts by weight of the UV stabilizer is added to constitute the film layer. The primer layer was prepared by adding 0.5 part by weight of an aziridine curing agent to 100 parts by weight of an acrylic adhesive resin having a molecular weight of 300,000 or more and 10 parts by weight of a tackifier.
A surface protective tape for a coated steel sheet was prepared by forming a soft PVC film at a thickness of 5 [mu] m with a dry thickness of 100 [mu] m and applying a releasing agent to the upper layer.
≪ Example 6 >
When the PVC resin was 100 parts by weight, the plasticizer content was added in an amount of 50 parts by weight, the brominated flame retardant was added in an amount of 20 parts by weight, and the UV stabilizer was added in an amount of 3 parts by weight. The adhesive layer was prepared by adding 0.5 part by weight of an aziridine curing agent to 100 parts by weight of an acrylic adhesive resin having a molecular weight of 300,000 or more and 5 parts by weight of a tackifier.
A surface protective tape for a coated steel sheet was prepared by forming a soft PVC film at a thickness of 5 [mu] m with a dry thickness of 100 [mu] m and applying a releasing agent to the upper layer.
≪ Example 7 >
When the PVC resin was 100 parts by weight, the plasticizer content was added in an amount of 50 parts by weight, the inorganic flame retardant was added in an amount of 25 parts by weight, and the UV stabilizer was added in an amount of 3 parts by weight. The adhesive layer was prepared by adding 2 parts by weight of an aziridine curing agent to 100 parts by weight of an acrylic adhesive resin having a molecular weight of 300,000 or more and 5 parts by weight of a tackifier.
A surface protection tape for a coated steel sheet was prepared by forming a flexible PVC film to a thickness of 10 [mu] m with a dry thickness of 200 [mu] m, and releasing paper to a pressure sensitive adhesive layer.
≪ Example 8 >
When the PVC resin was 100 parts by weight, the plasticizer content was added in an amount of 30 parts by weight, and the inorganic flame retardant was added in an amount of 25 parts by weight to constitute a film layer. The adhesive layer was prepared by adding 0.5 part by weight of an epoxy curing agent to 100 parts by weight of an acrylic adhesive resin having a molecular weight of 300,000 or more and 20 parts by weight of a tackifier.
A soft PVC film was formed to a thickness of 350 탆 by a dry thickness of the pressure-sensitive adhesive, and a releasing agent was applied to the layer to prepare a surface protective tape for a coated steel sheet.
≪ Example 9 >
When the PVC resin was 100 parts by weight, the plasticizer content was added in an amount of 50 parts by weight, and 10 parts by weight of a bromine-based flame retardant was added to form a film layer. The adhesive layer was prepared by adding 1.5 parts by weight of an epoxy curing agent to 100 parts by weight of an acrylic adhesive resin having a molecular weight of 300,000 or more and 30 parts by weight of a tackifier.
A soft PVC film was formed to a thickness of 80 탆 by a dry thickness of the pressure-sensitive adhesive, and a releasing agent was applied to the upper layer to prepare a surface protective tape for a coated steel sheet.
≪ Example 10 >
When the PVC resin is 100 parts by weight, the plasticizer content is 20 parts by weight, the inorganic flame retardant is added in an amount of 10 parts by weight, the UV stabilizer is added in an amount of 3 parts by weight, and the heat stabilizer is added in an amount of 3 parts by weight. The pressure-sensitive adhesive layer was prepared by adding 0.3 parts by weight of an epoxy curing agent to 100 parts by weight of an acrylic pressure-sensitive adhesive resin having a molecular weight of 300,000 or more and 30 parts by weight of a tackifier.
A soft PVC film was formed to a thickness of 80 탆 by a dry thickness of the pressure-sensitive adhesive, and a releasing agent was applied to the upper layer to prepare a surface protective tape for a coated steel sheet.
For Examples 1 to 10, adhesion, flame retardance, thickness, adhesion, UV safety, holding power and the like were evaluated.
Adhesion, thickness, initial tack and retention were measured by the KS T 1028 test specification.
The flame retardancy was measured by UL94V (Vertical Burning Test), a flame retardant-proof test.
The evaluation results are shown in Table 1.
(gf / 25 mm)
(UL-94)
(탆)
The adhesive strength is the highest when the tape is thin, the plasticizer content is low, the hardener content is low, and the tackifier content is high. In the case of Examples 1, 5, 8, 9 and 10.
Initial adhesion (adhesion) is affected by the content of the curing agent in the pressure-sensitive adhesive layer and the content of the tackifier. The initial adhesion is inversely proportional to the content of the curing agent in the pressure-sensitive adhesive layer, and is affected in proportion to the content of the tackifier. That is, when the content of the curing agent in the pressure-sensitive adhesive layer is low, initial adhesion is high, and when the content of the curing agent is high, initial adhesion is low, whereas when the content of the tackifier is high, initial adhesion is high, appear.
UV stability is high when UV stabilizers are used, and low when not used.
The holding force is expressed in proportion to the content of the hardener and / or the content of the tackifier. That is, when the hardener content is low, the holding power is low, and when the hardener content is high, the holding power is high. The higher the content of the tackifier, the higher the holding power, and the lower the content of tackifier, the lower the holding power.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention may be embodied otherwise without departing from the spirit and scope of the invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention, but are intended to be illustrative, and the scope of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of the claims should be construed as being included in the scope of the present invention.
Claims (2)
PVC (polyvinyl chloride) film layers including PVC (polyvinyl chloride) resins, plasticizers, flame retardants, UV stabilizers and heat stabilizers;
A pressure-sensitive adhesive layer formed on the film layer and including a pressure-sensitive adhesive resin, a tackifier, and a curing agent,
Wherein the pressure-sensitive adhesive resin is a linear resin having a flexibility of 300,000 or more in molecular weight (Mw), and at least one pressure-sensitive adhesive resin selected from the group consisting of acrylic, urethane, silicone and rubber- Adhesive tape.
The PVC (polyvinyl chloride) film layer comprises 20 to 50 parts by weight of a plasticizer, 5 to 30 parts by weight of a flame retardant, 3 to 6 parts by weight of a UV stabilizer and 3 to 6 parts by weight of a heat stabilizer,
Wherein the pressure-sensitive adhesive layer comprises 5 to 50 parts by weight of a tackifier in 100 parts by weight of the pressure-sensitive adhesive resin, and 0.1 to 10 parts by weight of the curing agent.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150140058A KR20170040869A (en) | 2015-10-06 | 2015-10-06 | The pvc sticky tape for protecing surface having fire retardant |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150140058A KR20170040869A (en) | 2015-10-06 | 2015-10-06 | The pvc sticky tape for protecing surface having fire retardant |
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| KR20170040869A true KR20170040869A (en) | 2017-04-14 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101342168B1 (en) | 2012-01-10 | 2013-12-18 | 세계화학공업(주) | The sticky tape for protecting surface having fire retardant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101342168B1 (en) | 2012-01-10 | 2013-12-18 | 세계화학공업(주) | The sticky tape for protecting surface having fire retardant |
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