CN101457129A - Tensile peeling belt - Google Patents

Tensile peeling belt Download PDF

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Publication number
CN101457129A
CN101457129A CNA2008101842247A CN200810184224A CN101457129A CN 101457129 A CN101457129 A CN 101457129A CN A2008101842247 A CNA2008101842247 A CN A2008101842247A CN 200810184224 A CN200810184224 A CN 200810184224A CN 101457129 A CN101457129 A CN 101457129A
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CN
China
Prior art keywords
base material
tape base
mentioned
peeling belt
tensile
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2008101842247A
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Chinese (zh)
Inventor
柴田和成
阪下贞二
内藤文夫
土屋和之
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Nitoms Inc
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Nitoms Inc
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Publication date
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Priority to CN201610269655.8A priority Critical patent/CN105907322A/en
Publication of CN101457129A publication Critical patent/CN101457129A/en
Pending legal-status Critical Current

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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
    • C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
    • C09J153/02—Vinyl aromatic monomers and conjugated dienes
    • 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
    • C09J7/20—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
    • C09J7/241—Polyolefin, e.g.rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/308—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive tape or sheet losing adhesive strength when being stretched, e.g. stretch adhesive
    • 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
    • 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
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
    • 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
    • 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
    • C09J2301/412—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of microspheres
    • 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
    • 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
    • C09J2301/414—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of a copolymer
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/006—Presence of polyolefin in the substrate
    • 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
    • C09J2423/00—Presence of polyolefin
    • C09J2423/04—Presence of homo or copolymers of ethene
    • C09J2423/046—Presence of homo or copolymers of ethene in the substrate
    • 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
    • C09J2453/00—Presence of block copolymer

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention relates to a tension stripping belt. The invention can cheaply provide an adhesive layer directly formed on a belt basis material surface to obtain the tension stripping belt with good tension. As the belt basis material (2) of the tension stripping belt (1), the foaming sheet of cross-linked polgolefin resin obtained using the metallocene catalyst and the adhesive is directed coated on the surface thereof.

Description

Tensile peeling belt
Technical field
The present invention relates to can be by being stretching in the tensile peeling belt that the sealing tape that attached on the attaching face is peeled off on the direction substantially parallel with quilt attaching face, in more detail, relate to the tensile peeling belt that the boundary strength between tape base material and the adhesive layer is improved.
Background technology
So-called tensile peeling belt, be a kind of of the sealing tape that when wall etc. is installed placard or hook etc. on the attaching face, uses, it is characterized in that by peeling off along mounting face is parallel, can not damage material installed or wall surface, anyone can both peel off (referring to the open 2004-339353 communique of for example Japanese Patent) simply.
For the easy stretch release of energy, this tensile peeling belt can use for example softish tape base material such as EVA resin (ethene vinyl-acetic ester multipolymer) or foamex sheet.Yet present tape base material is because a little less than the tensile strength of himself, when removing, the tape base material is fracture earlier, remains on the wall surface sometimes.
Therefore, stacked film is set at present on tape base material surface with the raising tensile strength, but because stacked film is set, so production cost improves.In addition, owing to adhesive layer is set, therefore be difficult to the boundary strength of design of thin rete and adhesive layer on the stacked film surface.In addition, since stacked, not only can damage the flexibility that foam has, and the absorptivity (tracing ability) of male and fomale(M﹠F) is reduced.
Therefore, the present invention makes in order to solve above-mentioned problem, and its objective is provides the stretchiness that can improve the tape base material more at an easy rate, and the anchorage (Tou Anchor of adhesive layer) good tensile peeling belt.
Summary of the invention
To achieve these goals, the present invention has the following several characteristic that illustrates.It is to form the sealing tape that adhesive layer forms at the one or both sides of tape base material, by applying tensile loading, stretch above-mentioned tape base material and paste the tensile peeling belt that the face of paying is peeled off from quilt, above-mentioned tape base material comprises the foaming sheet that uses the crosslinked crosslinked polyolefin resin that obtains of class of metallocenes catalyzer.
Thus, by in the tape base material, adopting the foaming sheet that uses the crosslinked crosslinked polyolefin resin that obtains of class of metallocenes catalyzer, from rather than at present like that, by the stretchiness that stacked film improves the tape base material is set, but can improve stretchiness by the synergy of tape base material and adhesive layer.
As preferred mode, it is characterized in that the thickness of tape base material is 0.55～0.72mm.
Thus, be 0.55～0.72mm by the thickness that makes the tape base material, to the tracing ability of uneven surface with aspect the inhibition of the deflection of shear-stress, be effective.In addition, be 0.55mm when following at tape thickness, probably can reduce (bond area reduction) to the tracing ability of uneven surface, be not preferred therefore, on the contrary, when tape thickness was thicker than 0.72mm, it is big that stress deformation becomes, and therefore the confining force step-down is not preferred.
In addition, as preferred mode, the tensile break strength of above-mentioned tape base material is 0.9N/mm 2More than.
Thus, be 0.9N/mm by the tensile break strength that makes the tape base material 2More than, thereby can prevent that base material is destroyed less than the intensity of tackiness agent.In addition, the tensile strength of tape base material is less than 0.9N/mm 2The time, the tensile strength of tape base material probably can produce destruction less than bonding strength, is not preferred therefore.
In addition, above-mentioned tape base material comprises straight chain shape new LDPE (film grade), and the Metallocenic compound that this straight chain shape new LDPE (film grade) comprises the tetravalence transition metal by use obtains ethene and alpha-olefin copolymer as polymerizing catalyst.
Thus, the foaming sheet is by comprising straight chain shape new LDPE (film grade), the Metallocenic compound that this straight chain shape new LDPE (film grade) comprises the tetravalence transition metal by use obtains ethene and alpha-olefin copolymer as polymerizing catalyst, thereby tape base material self is obtained than high stretchiness at present.
In addition,, can implement surface treatment, above-mentioned adhesive layer preferably directly is set on this treated side on the surface of above-mentioned tape base material in order to improve the anchorage of above-mentioned adhesive layer.In addition, above-mentioned surface treatment is a Corona discharge Treatment.
Thus, implement Corona discharge Treatment as surface treatment on tape base material surface, adhesive layer directly is set on this treated side, can form a plurality of micro concavo-convexes on tape base material surface by corona discharge thus, sneak into tackiness agent therein, thereby can improve the boundary strength of tape base material and adhesive layer.In addition, make the reaction of the carboxyl with some surface active property and the isocyanate compound that in tackiness agent, cooperates, thereby can reinforce combining of foam surface and tackiness agent.
As preferred mode, the principal constituent of above-mentioned adhesive layer comprises the SBS segmented copolymer.
Thus, as adhesive layer, principal constituent is used the SBS segmented copolymer, thereby tackiness agent self has high stretch, by in the directly coating of tape base material surface, owing to the synergy of tape base material, can obtain stretch release.
In addition, in above-mentioned adhesive layer,, cooperate 5～30 weight part silica beads with respect to the above-mentioned principal constituent of 100 weight parts.
Thus, by in adhesive layer, with respect to 100 weight part SBS segmented copolymers, cooperate 5～30 weight part silica beads, silica beads can not only improve the anchorage of tackiness agent, and when stretch release,, can peel off with littler power by exposing silica beads on the adhesive layer surface.
In addition, if silica beads is below 5 weight parts, the amount that silica beads is exposed on the surface is less, therefore probably can lack stretch release, is not preferred.On the contrary, if silica beads surpasses 30 weight parts, then the anchorage of tackiness agent probably can descend, and is not preferred therefore.In addition, the bonding strength to the surface also reduces.
Description of drawings
Fig. 1 is the exploded perspective view of the tensile peeling belt that relates to of one embodiment of the present invention.
Fig. 2 is the sectional view of the major portion of above-mentioned tensile peeling belt.
Fig. 3 is the synoptic diagram of expression tensile peeling belt stretched state of the present invention.
Fig. 4 is tape base material, tackiness agent and tensile peeling belt tensile stress-stress strain curve (S-S curve) figure.
Fig. 5 is the intensity-extensibility curve of tensile peeling belt.
Nomenclature
1 tensile peeling belt
2 tape base materials
3 adhesive layers
31 hydrophobic silica pearls
4 spacers
Embodiment
Then, embodiments of the present invention are described, but the present invention is not limited with reference to accompanying drawing.Fig. 1 is the exploded perspective view of the tensile peeling belt that relates to of one embodiment of the present invention, and Fig. 2 is the sectional view of its major portion.Fig. 3 is the synoptic diagram of expression tensile peeling belt stretched state, and Fig. 4 is stress-strain curve (S-S curve) figure of each embodiment tensile peeling belt.Fig. 5 is intensity-extensibility curve of measuring stretch release intensity.
This tensile peeling belt 1 is included in the so-called pressure sensitive adhesive double coated adhesive tape of the two sides formation adhesive layer 3,3 of tape base material 2.Be provided for protecting the spacer 4,4 on adhesive layer 3,3 surfaces on the two sides of tensile peeling belt 1.In the present invention, the formation of spacer 4,4 can be arbitrarily, therefore omits its explanation.
On the two sides of distolateral (being the left side in Fig. 1) of tensile peeling belt 1, handle part 11,11 dominated by hand when being arranged on stretch release.Handle part 11,11 can use and for example form the orthogonal resin film, attaches along adhesive layer 3,3.In the present invention, the structure of handle part 11,11 is arbitrarily.
Tape base material 2 is preferably easy stretch release, and has the synthetic resins of suitable caoutchouc elasticity, in this embodiment, comprises the foaming sheet that uses the crosslinked crosslinked polyolefin resin of class of metallocenes catalyzer.In addition, the structure of foaming sheet can be any of continuous air bubbles, separated foam.
As crosslinked polyolefin resin, preferably adopt straight chain shape new LDPE (film grade), described straight chain shape new LDPE (film grade) is to use the Metallocenic compound that comprises the tetravalence transition metal as polymerizing catalyst, and ethene and alpha-olefin copolymer are obtained.
Tape base material 2 preferred thickness are 0.55～0.72mm, more preferably 0.60mm.Thus, on to the tracing ability of uneven surface and in inhibition, be effective corresponding to the deflection of shear-stress.
In addition, be 0.55mm when following at tape thickness, probably can reduce (bond area reduction) to the tracing ability of uneven surface, be not preferred therefore, on the contrary, when tape thickness was thicker than 0.72mm, probably stress deformation became big, confining force step-down, is not preferred therefore.
In addition, tape base material 2 preferred tensile break strengths are 0.9N/mm 2More than, 2.0N/mm more preferably 2In addition, the tensile strength of tape base material is less than 0.9N/mm 2The time, the tensile strength of tape base material probably can produce destruction less than bonding strength, is not preferred therefore.
Have the tape base material 2 of this condition by use, thereby need not as at present, to attach the stacked film of enhancing usefulness, just can obtain the tape base material that oriented film band soft, that have caoutchouc elasticity is used on the surface of tape base material 2.
Preferably implement as the surface-treated Corona discharge Treatment on surface at tape base material 2.Thus, by Corona discharge Treatment, form micro concavo-convex on the surface of tape base material 2, so the surface-area of tape base material 2 obtains increasing, the anchorage of adhesive layer 3,3 is improved.In addition, make the reaction of the carboxyl with some surface active property and the isocyanate compound that in tackiness agent, cooperates, can reinforce combining of foam surface and tackiness agent.
Adhesive layer 3,3rd high retentivity, has been coated with and can have adhered to (Tong Tone with the crosslinked polyolefin resin of tape base material 2), tackiness agent with stretchiness.In this embodiment, tackiness agent is included on the surface of tape base material 2 with the direct even product that obtains of the polymkeric substance of coating SBS segmented copolymer class of specific thickness, and in this embodiment, the thickness that adhesive layer 3,3 forms is 0.1mm.
In this embodiment, tackiness agent is female agent with the polymkeric substance of SBS segmented copolymer class, the adhesive component of interpolation α pinene vinyl resin or C5C9 petroleum resinoid etc., naphthenic oil (Na Off テ Application is a オ イ Le) etc. can also cooperate various additives such as antioxidant or UV light absorber.
In this embodiment, can also in tackiness agent, add isocyanate resin, thus, can with the surface treatment mortise of tape base material, so boundary strength is higher, can improve anchorage.
In tackiness agent, can also cooperate the silica beads of specified amount.In this embodiment, tackiness agent is a solvent based, therefore uses the silica beads with solvent resistance, and wherein, therefore the favorable dispersity of hydrophobic silica pearl in the solvent based adhesive material be preferred.
Silica beads preferably cooperates 5～30 weight parts with respect to 100 parts by weight polymer, more preferably cooperates 5～10 weight parts.That is, if silica beads is below 5 weight parts, then the amount exposed on the surface of silicon-dioxide is less, therefore probably can lack stretch release, is not preferred.On the contrary, if silica beads surpasses 30 weight parts, then the anchorage of tackiness agent probably can reduce, and is not preferred therefore.
Thus, as shown in Figure 3, the edge quilt attaches the tensile peeling belt 1 that face W attaches between (direction of arrow among the figure) stretching edge quilt attaching face W substantially parallel, thereby be accompanied by the stretching of tape base material 2, the surface that silica beads 31 in the adhesive layer 3,3 is exposed adhesive layer 3,3, thereby adhesive power weakens, and can peel off with littler power.
Then, as specific embodiments of the invention, can prepare tensile peeling belt by the following method.
[preparation of tape base material]
As the foaming sheet that uses the crosslinked crosslinked polyolefin resin that obtains of class of metallocenes catalyzer, use the ProductName " ボ ラ-ラ " of ponding chemistry society preparation.The sheet (thickness 0.6mm) that will foam is cut into the short strip shape of 18mm * 38mm, implements Corona discharge Treatment on its two sides.
[preparation of tackiness agent]
Tackiness agent is to comprise in the host polymer of styrene-butadiene-styrene copolymer rubber at 100 weight parts, adds 40 weight part terpenoid resins (115 ℃ of softening temperatures), petroleum resinoid (80 ℃ of softening temperatures), 3 weight part tenderizers and 3 parts by weight of toluene vulcabond respectively.
In addition, with respect to this tackiness agent of 100 weight parts, can also add the hydrophobic silica pearl (ProductName " サ イ ロ ホ-PVC Star Network 702 " that the シ リ シ ア of Fuji chemistry society makes) of 10 weight parts (embodiment 1), 20 weight parts (embodiment 2), 30 weight parts (embodiment 3) respectively.In addition, as a comparative example, use and do not add the tackiness agent of silica beads.
[preparation of tensile peeling belt]
Directly at this each tackiness agent of surface coated, make that the thickness on two sides of tape base material is 0.1mm, thus the preparation tensile peeling belt.
Use above-mentioned each sample, carry out following tension test and various benchmark test.
[tension test]
In tensile testing machine, with chuck spacing 50mm mounting strap base material only, the draw speed with 300mm/min stretches then, the stress-strain curve of record this moment.In addition, the method with same is used for tension test with tensile peeling belt.In addition, also existing tape base material is used for tension test.
Tackiness agent is processed into is equivalent to bandwidth 18mm * adhesive layer (0.1mm * 2)=3.6mm 2Cylindrical (thread) of sectional area, be installed on the tensile testing machine with chuck spacing 30mm then, stretch the stress-strain curve of record this moment with the draw speed of 300mm/min.
[tensile strength test]
Press the tensile peeling belt of the attached 20mm of being adjusted to width in the mode that does not contain air on the acrylate plate of 30mm width, placed at normal temperatures 30 minutes, the draw speed with 300mm/min stretches then, measures the intensity of this moment.
[tackiness evaluation]
On stainless steel plate, press attached one to place the specified time back and forth on each sample of mounting the PET film that has closed #25 μ m,, measure the adhesive power of peeling off of 90 ° of directions then with the peeling rate of 300mm/min with the 2kg rod.
[retentivity evaluation]
In " は Ga せ Ru Off Star Network M " that ニ ト system ズ society makes, attach each sample, on stainless steel plate, put up another side then, place 1 hour at normal temperatures after, placed 30 minutes down at 40 ℃ again, on hook, apply vertically increasing the weight of of 2kg then, confirm whether fall this moment.
[stretch release evaluation]
In " は Ga せ Ru Off Star Network M " that ニ ト system ズ society makes, attach each sample, on melamine decorative board, polyester decorative sheet, trimeric cyanamide paint sheet and sheet glass, attach another side respectively then, after placing 1 hour at normal temperatures, placed 7 days down at 40 ℃ again, peel off with pulling to stretch then, confirm whether can not be with fracture ground to separate.
" tension test evaluation result "
As shown in Figure 4, the monomeric extensibility of tape base material is 490%, and the monomeric extensibility of tackiness agent is 1300%, their integrated tensile peeling belts that obtains (tape base material+tackiness agent) be stretched as 700%, increase extensibility more than 200% than tape base material monomer.Thus, even there is not the structure of stacked film on the two sides of tape base material, also can obtain enough tensile properties.
" tensile strength test evaluation result "
As shown in Figure 5, the stretch release intensity of embodiment and comparative example is about 14N/mm 2If based on it, calculate the stretch release intensity of per unit area, then be 14/ (20 * 0.8)=0.9N/mm 2Thus, necessary band strength is preferably 0.9N/mm when stretch release 2More than.
" embodiment 1 "
[hydrophobic silica pearl] 10 weight parts
[tackiness (N/19mm)] 15
[40 ℃ of confining forces] is more than 20 days
[stretch release] melamine decorative board zero, polyester decorative sheet zero, trimeric cyanamide paint sheet zero, sheet glass zero
" embodiment 2 "
[hydrophobic silica pearl] 20 weight parts
[tackiness (N/19mm)] 12
[40 ℃ of confining forces] is more than 20 days
[stretch release] melamine decorative board zero, polyester decorative sheet zero, trimeric cyanamide paint sheet zero, sheet glass zero
" embodiment 3 "
[hydrophobic silica pearl] 30 weight parts
[tackiness (N/19mm)] 11
[40 ℃ of confining forces] is more than 20 days
[stretch release] melamine decorative board zero, polyester decorative sheet zero, trimeric cyanamide paint sheet zero, sheet glass zero
" comparative example "
[hydrophobic silica pearl] 0 weight part
[tackiness (N/19mm)] 23
[40 ℃ of confining forces] is more than 20 days
[stretch release] melamine decorative board *, the polyester decorative sheet *, the trimeric cyanamide paint sheet *, sheet glass *
The result of the foregoing description and comparative example illustrates in table 1 in the lump.
Table 1
Figure A200810184224D00101
By on can obtain following discovery.
(1) tensile peeling belt of the present invention is compared with the monomeric extensibility of tape base material by the synergy of tape base material and tackiness agent, and extensibility improves about more than 200%, even therefore stacked film is not set, also can obtain enough stretch releases.
(2) if increase the addition of hydrophobic silica pearl, then tackiness reduces, but does not find special influence at aspects such as confining forces.
(3) it is excessive not add the adhesive power of tackiness agent of hydrophobic silica pearl.

Claims (8)

1, a kind of tensile peeling belt, it is to form the sealing tape that adhesive layer forms at the one or both sides of tape base material, by applying tensile loading, stretches above-mentioned tape base material and, it is characterized in that from being pasted the tensile peeling belt that the face of paying is peeled off,
Above-mentioned tape base material comprises the foaming sheet that uses the crosslinked crosslinked polyolefin resin that obtains of class of metallocenes catalyzer.
2, tensile peeling belt as claimed in claim 1, wherein, the thickness of above-mentioned tape base material is 0.55～0.72mm.
3, tensile peeling belt as claimed in claim 1 or 2, wherein, the tensile break strength of above-mentioned tape base material is 0.9N/mm 2More than.
4, as claim 1,2 or 3 each described tensile peeling belts, wherein, above-mentioned tape base material comprises straight chain shape new LDPE (film grade), described straight chain shape new LDPE (film grade) is to use the Metallocenic compound that contains the tetravalence transition metal as polymerizing catalyst, and ethene and alpha-olefin copolymer are obtained.
5, as each described tensile peeling belt of claim 1～4, wherein, the surface treatment in that the enforcement of the surface of above-mentioned tape base material is used to improve above-mentioned adhesive layer anchorage directly is provided with above-mentioned adhesive layer on this treated side.
6, tensile peeling belt as claimed in claim 5, wherein, above-mentioned surface treatment is a Corona discharge Treatment.
7, as each described tensile peeling belt of claim 1～6, wherein, the principal constituent of above-mentioned adhesive layer comprises the SBS segmented copolymer.
8,, wherein, in above-mentioned adhesive layer,, cooperate 5～30 weight part silica beads with respect to the above-mentioned SBS segmented copolymer of 100 weight parts as each described tensile peeling belt of claim 1～7.
CNA2008101842247A 2007-12-14 2008-12-12 Tensile peeling belt Pending CN101457129A (en)

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CN112945845A (en) * 2021-01-22 2021-06-11 哈尔滨焊接研究院有限公司 Test method for detecting additive interface peeling performance of nickel-saving austenitic stainless steel
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JP2009144068A (en) 2009-07-02
KR101530301B1 (en) 2015-06-19

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