CN1333031C - Electrical insulation adhesive tape, its back film and method for making back film - Google Patents
Electrical insulation adhesive tape, its back film and method for making back film Download PDFInfo
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- CN1333031C CN1333031C CNB2003101002241A CN200310100224A CN1333031C CN 1333031 C CN1333031 C CN 1333031C CN B2003101002241 A CNB2003101002241 A CN B2003101002241A CN 200310100224 A CN200310100224 A CN 200310100224A CN 1333031 C CN1333031 C CN 1333031C
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- notacoria
- insulating tape
- electric insulating
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- 238000000034 method Methods 0.000 title claims description 21
- 239000002390 adhesive tape Substances 0.000 title abstract description 7
- 238000010292 electrical insulation Methods 0.000 title abstract 4
- 239000004698 Polyethylene Substances 0.000 claims abstract description 16
- 229920000573 polyethylene Polymers 0.000 claims abstract description 16
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 15
- -1 polyethylene Polymers 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 9
- 150000002367 halogens Chemical class 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 238000003851 corona treatment Methods 0.000 claims description 3
- 229920003244 diene elastomer Polymers 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract description 2
- 230000000704 physical effect Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000013459 approach Methods 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 description 29
- 229920000915 polyvinyl chloride Polymers 0.000 description 28
- 238000012360 testing method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- FTFYDDRPCCMKBT-UHFFFAOYSA-N 1-butylcyclopenta-1,3-diene Chemical compound CCCCC1=CC=CC1 FTFYDDRPCCMKBT-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 101150111419 ATH1 gene Proteins 0.000 description 1
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- 101100433747 Arabidopsis thaliana ABCA2 gene Proteins 0.000 description 1
- 101100288148 Arabidopsis thaliana KNAT5 gene Proteins 0.000 description 1
- 101100135611 Arabidopsis thaliana PAP12 gene Proteins 0.000 description 1
- 101150002428 Atoh1 gene Proteins 0.000 description 1
- 101100057132 Candida albicans (strain SC5314 / ATCC MYA-2876) ATC1 gene Proteins 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 description 1
- 102100029373 Transcription factor ATOH1 Human genes 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229960001708 magnesium carbonate Drugs 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- NFWSQSCIDYBUOU-UHFFFAOYSA-N methylcyclopentadiene Chemical compound CC1=CC=CC1 NFWSQSCIDYBUOU-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000002987 primer (paints) Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 229940125725 tranquilizer Drugs 0.000 description 1
- 239000003204 tranquilizing agent Substances 0.000 description 1
- 230000002936 tranquilizing effect Effects 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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Abstract
The present invention relates to an electrical insulation adhesive tape and a back film and a preparation method of the back film thereof. The back film of the electrical insulation adhesive tape comprises the components of 20 to 80 wt% of polyethylene, 80 to 20 wt% of EPDM rubber, 0 to 30 wt% of filling agent, and 0 to 20 wt% of processing auxiliary agent. The back film is an environmental protection material without halogen, the physical property of the back film approaches to that of a PVC back film, and the back film can replace the PVC for the electrical insulation adhesive tape.
Description
Technical field
The relevant a kind of electric insulating tape of the present invention, its notacoria and notacoria method for making thereof, this electric insulating tape notacoria is not halogen-containing environment-friendly materials, rerum natura is close with PVC electric insulating tape notacoria, and the electric insulating tape that makes with this notacoria can replace conventional P VC electric insulating tape.
Background technology
General polyvinyl chloride (PVC) notacoria that uses is made electric insulating tape, because the PVC cost is low, processibility is good, heat-resisting and anti-combustion, output and consumption are very big.But last decade comes, in response to environmental protection trend, each advanced country's active development of the world is to the material (environmentalfriendly materials) of environment friendliness, or title environmentally conscious materials (eco-materials), wherein European Union more proposed from 2004, did not use the product that contains lead and halogen in electrical appliance.Therefore, need badly other more the material substitution of environmental protection contain the PVC notacoria of chlorine, to be used in electric insulating tape.
Prior art has research and development to substitute the electric insulating tape notacoria person of PVC, but for reaching and the similar good hand of PVC notacoria, adds the bridge formation reinforcement in prescription, and this has disadvantageous effect for salvage material.
For example, United States Patent (USP) the 5th, 284, disclose a kind of electric insulating tape notacoria for No. 889, comprise 60 to 100 parts of EVA (ethylene-vinyl acetate copolymers, poly (ethylene vinylacetate) copolymer), 0 to 40 part of EPDM (propylene diene rubber, ethylenepropylene diene rubber), 0.05 to 5 part of silane coupling agent, 5 to 25 portions of brominated flame retardants, 1.5 to 10 parts contain antimony flame retardant and 1 to 20 part of metal oxide hydrate.It adds part EPDM based on EVA, again with the reinforcement of bridge formation mode, is difficult for so reclaim.
United States Patent (USP) the 5th, 498 discloses a kind of electric insulating tape notacoria, comprises 60 to 100 parts of EVA, 0 to 40 part of EPDM, 0.05 to 5 part of amino containing silane coupler and 40 to 150 portions of phosphoric acid quadrol flame retardants for No. 476.It adds part EPDM based on EVA, again with the reinforcement of bridge formation mode, is difficult for so reclaim.
United States Patent (USP) the 6th, 376 discloses a kind of insulativity boundary belt No. 068, comprises polyolefine, EPDM and fire retardant, and further comprises softening agent, dyestuff, pigment, antioxidant or static inhibitor.It is the protection that is applied to steel pipe.
Republic of China's patent announcement discloses a kind of film and laminate (insulating material) for No. 419485, comprise a kind of ethene-alpha-olefin copolymer and cyclopentadiene, methyl cyclopentadiene, 1, multipolymers such as 3-dimethyl cyclopentadiene, methyl cyclopentadiene trimethyl silane, butyl cyclopentadiene.Be used in cable, comprise the electric insulation layer of above-mentioned insulating material.
Summary of the invention
The purpose of this invention is to provide a kind of electric insulating tape notacoria, itself and PVC notacoria feel, rerum natura are close, but the problem that halogen is polluted or is difficult for reclaiming is environment-friendly materials.
Another object of the present invention provides a kind of electric insulating tape that comprises above-mentioned electric insulating tape notacoria.
Another purpose of the present invention provides a kind of method of making the electric insulating tape notacoria, utilizes the method for original creation to make the electric insulating tape notacoria, and its feel, rerum natura and PVC are similar to, but not halogen-containing and easy recovery.
A further object of the present invention provides a kind of electric insulating tape notacoria and comprises the electric insulating tape of this notacoria, and its notacoria is by the prepared electric insulating tape notacoria of aforesaid method.
Therefore, electric insulating tape notacoria of the present invention comprises weighting agent, and the processing aid of 0 to 20 weight percent of EPDM rubber, 0 to 30 weight percent of polyethylene, 80 to 20 weight percents of 20 to 80 weight percents.
Electric insulating tape of the present invention comprises as above-mentioned electric insulating tape notacoria and is coated on the sticking agent on a surface of this notacoria.
The method of manufacturing electric insulating tape notacoria of the present invention comprises the following steps: the mixture that (i) provides a polyethylene and EPDM rubber mix to form; (ii), (iii) this film is extended with 1: 1 to 1: 10 ratio of elongation and extends with 1: 1 to 1: 10 ratio of elongation at horizontal direction at longitudinal direction in 100 to 240 ℃ of following fusion system films of this mixture; And (iv) with step (iii) the film of gained give surface treatment.
The present invention makes notacoria up to specification to be used in electric insulating tape, the problem of the difficult recovery of no Prior Art with the polyethylene of the tool feature of environmental protection.
Description of drawings
Fig. 1 shows the stress-strain behavior curve of the notacoria of Prior Art;
Fig. 2 shows the stress-strain behavior curve of the notacoria of electric insulating tape notacoria of the present invention and PVC notacoria of commonly using and comparative example.
Embodiment
Electric insulating tape notacoria of the present invention comprises about 20 to 80 weight percents, is preferably the polyethylene (PE) of about 30 to 70 weight percents.This poly molecular weight ranges is about 50,000 to 300,000, preferable about 100,000 to 200,000.
Electric insulating tape notacoria of the present invention comprises about 80 to 20 weight percents, the EPDM of preferable about 70 to 30 weight percents.This EPDM can comprise the propylene of the ethene of about 50 to 95 weight percents, about 5 to 50 weight percents and the diene of about 0 to 3 weight percent.
Electric insulating tape notacoria of the present invention can more comprise about 0 to 30 weight percent, is preferably the weighting agent of about 1 to 20 weight percent, for example, and silicon-dioxide, titanium dioxide, lime carbonate, magnesiumcarbonate, calcium sulfate, barium sulfate, pure aluminium silicate and fellow thereof.Absorb fillers not, or with a small amount of interpolation, be as the criterion not influence the required rerum natura of notacoria.
Electric insulating tape notacoria of the present invention can more comprise about 0 to 20 weight percent, is preferably the processing aid of about 0.5 to 15 weight percent, for example, and releasing agent, coupler, lubrication prescription etc.Processing aid kind and amount are decided according to processing procedure, can not add, or with a small amount of interpolation, are as the criterion not influence the required rerum natura of notacoria.
Electric insulating tape notacoria of the present invention in addition can comprise for example pigment, dyestuff, ultraviolet tranquilizer, softening agent, sterilant, antioxidant, wax or the like, with known consumption but do not influence the use that is as the criterion of the required rerum natura of notacoria.
Electric insulating tape notacoria thickness of the present invention is preferably between about 0.08 to 0.20mm about 0.02 to 0.30mm, tensile strength 1.3 to 3.0kgf/mm
2Between, elongation at break is between 100 to 700%, and disintegration voltage is between 39 to 150kv/mm, and distortion recovers than between 5 to 20%, and these rerum naturas are all similar with the PVC notacoria, and wherein the character of disintegration voltage more is better than the PVC notacoria.Further the stress-strain curve during with retraction changes when analyzing notacoria and extend, the feel of notacoria of the present invention and PVC notacoria are approximate as can be known, that is, skillful PVC tape user is when the electric insulating tape that uses electric insulating tape notacoria of the present invention to make, when coating and tearing adhesive tape, the adhesive tape elasticity of being felt, toughness, touch sense, and extend tight coating due to the retraction of back etc., approximate with PVC tape.Therefore, electric insulating tape notacoria of the present invention can substitute PVC tape fully, and has more advantage not halogen-containing, that be convenient to reclaim.
The method of manufacturing electric insulating tape notacoria of the present invention at first provides as above-mentioned polyethylene and EPDM rubber, and other raw materials such as aforesaid weighting agent, processing aid or additive mix the formation mixture with mixing machine or extrusion machine.The blended condition is also unrestricted, generally gets over high-speed mixing, and then effect is good more.
Can begin to make film after the mixing, but generally under power operation designs easily, can give granulation (pellets) earlier, for example, utilize twin screw to mediate extrusion and granulate about 100 to 240 ℃ of extruder temperature.
With said mixture or mixture grain ingot at about 100 to 240 ℃, under preferable about 140 to 180 ℃, fusion system film.The method of system film can be used blowfilm shaping system film, single screw rod extrusion system film, twin screw extrusion system film or calendering system film.Thickness is about scope of 0.02 to 0.30mm.
Then, with this film at longitudinal direction with about 1: 1 to 1: 10, be preferably about 1: 1 to 1: 5 ratio of elongation and extend, and at horizontal direction with about 1: 1 to 1: 10, be preferably about 1: 1 to 1: 5 ratio of elongation and extend.This film extends the crucial and unique place of step for method for making of the present invention.This step is given the rerum natura close with PVC that have of prepared electric insulating tape notacoria uniqueness.
At last, the film of above-mentioned gained is given surface treatment, obtain electric insulating tape notacoria of the present invention.Surface treatment is to increase the film surface adhesion force, makes and can do good bonding with the sticking agent that adhesive tape is used.Spendable surface treatment method is also unrestricted, can use the technology of knowing, for example corona treatment (for example, 1000 to 5000 volts/cm
2) or chemical treatment (for example primer coating) or the like.Last gained thickness about 0.02 is preferably between 0.08 to 0.20mm to 0.30mm.
With the above-mentioned surface-treated notacoria of the present invention, evenly coat 0.01 to 0.05mm polymer pressure-sensing glue, as sticking agents such as acryl system, rubber systems, its adhesion is between 1.4 to 5.8kgf/19mm, become electric insulating tape, suitable with conventional P VC electric insulating tape adhesion, therefore, electric insulating tape of the present invention can substitute the PVC electric insulating tape fully, and has more environmental protection advantages such as not halogen-containing.
For above and other objects of the present invention, feature and advantage can be become apparent, be described as follows with embodiment.
Embodiment:
See also the stress-strain behavior curve of the notacoria of the Prior Art that Fig. 1 shows; And the stress-strain behavior curve of the notacoria of the electric insulating tape notacoria of the present invention of Fig. 2 demonstration and PVC notacoria of commonly using and comparative example.
The PE (Asia gathers 7100, the inferior poly-company in Taiwan product) of 100 weight parts, the EPDM (DuPont Nordel 1070) of 118 weight parts and the releasing agent of 4.4 weight parts are inserted in the mixing machine, and high-speed mixing is through dual-screw-stem machine kneading extrusion granulation under 190 ℃.Prepared grain ingot is placed single screw rod extruder (employed screw diameter is 90mm, and spiro rod length and diameter are than (L/D)=30, and die throat diameter is 400mm) extrusion and blown film under 140 to 180 ℃ temperature range.Extrusion outlet thickness is 1.8mm, uses extension device that film is reached with 4.0 times of horizontal expansions with 3.0 times of longitudinal extensions then, and obtaining thickness is the film of 0.15mm.Then, film is given corona treatment, 2000 volts/cm of voltage
2, obtain electric insulating tape notacoria finished product of the present invention.
Comparative example:
Only use not the PE of upgrading (inferior poly-7100, the inferior poly-company in Taiwan product) as raw material, make notacoria as the mode of embodiment.
Test 1:
Tensile strength, elongation at break, disintegration voltage and the distortion of the electric insulating tape notacoria of the present invention of the not upgrading PE notacoria of PVC electric insulating tape notacoria, the comparative example commonly used of test and embodiment gained recover than (according to CNS C4049 test specification) respectively.The result is as shown in table 1.
As shown in Table 1, the PE rerum natura of upgrading is not relatively poor, and distortion recovers than reaching 27 to 32%.The electric insulating tape notacoria rerum natura of embodiment strengthens, and stress-strain curve and PVC overlap during extension, show identical physical property, and disintegration voltage are better.
Table 1
| Sample | Tensile strength kgf/mm 2 | Elongation at break % | Disintegration voltage kV/mm | Distortion recovers to compare % |
| CNS C4049 acceptance value | 1.3 | 100 | 39 | |
| PVC | 2.5 | 124 | 79 | 9～12 |
| Comparative example | 1.5 | 458 | 99 | 27～32 |
| Embodiment | 1.8 | 615 | 133 | 11～13 |
Test 2:
According to CNS C4049 test specification, draw speed 200mm/ branch, the stress-strain behavior of the electric insulating tape notacoria of the present invention of the PE notacoria of the not upgrading of PVC electric insulating tape notacoria, the comparative example commonly used of test and embodiment gained respectively, plot the stress-strain behavior curve, as shown in Figure 2.As seen from the figure, electric insulating tape notacoria of the present invention is when stretching, and tensile strength is extremely similar with the PVC that commonly uses, and the tensile strength when continuing the test retraction again also has to be similar to the curve that PVC shows.This data presentation electric insulating tape notacoria of the present invention in use (draw back, tear fracture, and coat) feel extremely close with the PVC that commonly uses, be one of feature of the present invention.Consult Fig. 1, it is prior art United States Patent (USP) the 5th, 284, (the material composition is respectively EVA2/EPDM2:75/25 (not containing weighting agent) to three embodiment in No. 889 the specification sheets (incorporating it into this paper for your guidance), EVA2/EPDM2:85/25 (not containing weighting agent), EVA2/EPDM2/ATH1/Br1/Sb1/Mb1:59/15/11/74/4 (26% weighting agent)) with the stress-strain behavior graphic representation of PVC, it only analyzes the curvilinear motion when extending, the tensile strength that when retraction test do not arranged does not also disclose in the literary composition or teaching such as electric insulating tape notacoria of the present invention are similar to the rerum natura of PVC when retraction.Curvilinear motion when the present invention analyzes and extends during with retraction more can be grasped the otherness of non-PVC notacoria and PVC notacoria thereby the better electric insulating tape notacoria of availability matter.
Claims (25)
1. electric insulating tape notacoria is characterized in that: described electric insulating tape notacoria comprises weighting agent, and the processing aid of 0 to 20 weight percent of propylene diene rubber, 0 to 30 weight percent of polyethylene, 80 to 20 weight percents of 20 to 80 weight percents.
2. electric insulating tape notacoria according to claim 1 is characterized in that: this electric insulating tape notacoria is not halogen-containing.
3. electric insulating tape notacoria according to claim 1 is characterized in that: this electric insulating tape notacoria has 1.3 to 3.0kgf/mm
2Tensile strength.
4. electric insulating tape notacoria according to claim 1 is characterized in that: this electric insulating tape notacoria has 100 to 700% elongation at break.
5. electric insulating tape notacoria according to claim 1 is characterized in that: this electric insulating tape notacoria has 39 to 150kv/mm disintegration voltage.
6. electric insulating tape notacoria according to claim 1 is characterized in that: this electric insulating tape notacoria has 5 to 20% distortion recovery ratio.
7. electric insulating tape notacoria according to claim 1 is characterized in that: this electric insulating tape notacoria thickness is between 0.02 to 0.30mm.
8. electric insulating tape is characterized in that described electric insulating tape notacoria comprises:
One notacoria, this notacoria comprise weighting agent, and the processing aid of 0 to 20 weight percent of propylene diene rubber, 0 to 30 weight percent of polyethylene, 80 to 20 weight percents of 20 to 80 weight percents; And
One is coated on the sticking agent on a surface of this notacoria.
9. electric insulating tape according to claim 8 is characterized in that: this notacoria is not halogen-containing.
10. electric insulating tape according to claim 8 is characterized in that: this notacoria has 1.3 to 3.0kgf/mm
2Tensile strength.
11. electric insulating tape according to claim 8 is characterized in that: this notacoria has 100 to 700% elongation at break.
12. electric insulating tape according to claim 8 is characterized in that: this notacoria has 39 to 150kv/mm disintegration voltage.
13. electric insulating tape according to claim 8 is characterized in that: this notacoria has 5 to 20% distortion recovery ratio.
14. electric insulating tape according to claim 8 is characterized in that: this notacoria thickness is between 0.02 to 0.30mm.
15. a method of making the electric insulating tape notacoria comprises the following steps:
(i) mixture that provides a polyethylene and EPDM rubber mix to form, polyethylene accounts for 20 to 80 weight percents in this mixture, and EPDM rubber accounts for 80 to 20 weight percents;
(ii) with in 100 to 240 ℃ of following fusion system films of this mixture;
(iii) this film is extended with 1: 1 to 1: 10 ratio of elongation and extends with 1: 1 to 1: 10 ratio of elongation at horizontal direction at longitudinal direction; And
(iv) with step (iii) the film of gained give surface treatment.
16. the method for manufacturing electric insulating tape notacoria according to claim 15, wherein this mixture further contains the weighting agent of 0 to 30 weight percent.
17. the method for manufacturing electric insulating tape notacoria according to claim 15, wherein this mixture further contains the processing aid of 0 to 20 weight percent.
18. the method for manufacturing electric insulating tape notacoria according to claim 15, wherein this mixture further contains the tinting material of 0 to 15 weight percent.
19. the method for manufacturing electric insulating tape notacoria according to claim 15, wherein step is (ii) with in 140 to 180 ℃ of following fusion system films of this mixture.
20. the method for manufacturing electric insulating tape notacoria according to claim 15, wherein the method for the (ii) middle system film of step is blowfilm shaping system film, single screw rod extrusion system film, twin screw extrusion system film or calendering system film.
21. the method for manufacturing electric insulating tape notacoria according to claim 20, wherein the method for the (ii) middle system film of step is single screw rod extrusion system film, and screw diameter is 90mm, and spiro rod length is 30 with the diameter ratio.
22. the method for manufacturing electric insulating tape notacoria according to claim 15, wherein this surface treatment is corona treatment or chemical treatment.
23. the method for manufacturing electric insulating tape notacoria according to claim 15 further reaches step afterwards in step (i) and (ii) comprises the following steps: this granulating mixture before.
24. according to the prepared electric insulating tape notacoria of each described method in the claim 15 to 23.
25. according to the prepared electric insulating tape notacoria of each described method in the claim 15 to 23 as the prepared electric insulating tape of notacoria.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101002241A CN1333031C (en) | 2003-10-10 | 2003-10-10 | Electrical insulation adhesive tape, its back film and method for making back film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101002241A CN1333031C (en) | 2003-10-10 | 2003-10-10 | Electrical insulation adhesive tape, its back film and method for making back film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1605610A CN1605610A (en) | 2005-04-13 |
| CN1333031C true CN1333031C (en) | 2007-08-22 |
Family
ID=34755879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101002241A Expired - Lifetime CN1333031C (en) | 2003-10-10 | 2003-10-10 | Electrical insulation adhesive tape, its back film and method for making back film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1333031C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941859A (en) * | 1974-08-02 | 1976-03-02 | The B. F. Goodrich Company | Thermoplastic polymer blends of EPDM polymer, polyethylene and ethylene-vinyl acetate copolymer |
| US4536441A (en) * | 1983-06-25 | 1985-08-20 | Beiersdorf Aktiengesellschaft | Adhesive tape |
| JPH06262679A (en) * | 1993-06-28 | 1994-09-20 | Mitsui Petrochem Ind Ltd | Ultrahigh molecular weight polyolefin biaxially stretched film and production thereof |
| CN1133102A (en) * | 1993-10-08 | 1996-10-09 | 美国3M公司 | Electrically insulating film backing |
| US6376068B1 (en) * | 1998-01-09 | 2002-04-23 | 3M Innovative Properties Company | Insulation protection tape |
-
2003
- 2003-10-10 CN CNB2003101002241A patent/CN1333031C/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941859A (en) * | 1974-08-02 | 1976-03-02 | The B. F. Goodrich Company | Thermoplastic polymer blends of EPDM polymer, polyethylene and ethylene-vinyl acetate copolymer |
| US4536441A (en) * | 1983-06-25 | 1985-08-20 | Beiersdorf Aktiengesellschaft | Adhesive tape |
| JPH06262679A (en) * | 1993-06-28 | 1994-09-20 | Mitsui Petrochem Ind Ltd | Ultrahigh molecular weight polyolefin biaxially stretched film and production thereof |
| CN1133102A (en) * | 1993-10-08 | 1996-10-09 | 美国3M公司 | Electrically insulating film backing |
| US6376068B1 (en) * | 1998-01-09 | 2002-04-23 | 3M Innovative Properties Company | Insulation protection tape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1605610A (en) | 2005-04-13 |
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