CN102051139A - Polyethylene anticorrosion adhesive tape and preparation method thereof - Google Patents
Polyethylene anticorrosion adhesive tape and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a polyethylene anticorrosion adhesive tape. The adhesive tape consists of a polyethylene base film and an adhesive layer, wherein the adhesive layer is obtained by mixing components of the adhesive layer, extruding through an extruder, coating on the polyethylene base film and compounding; the polyethylene base film is prepared from the following components in percentage by mass: 40 to 60 percent of low density polyethylene, 10 to 45 percent of high density polyethylene, 5 to 25 percent of ethylene-vinyl acetate copolymer, 0 to 5 percent of rubber A and 0 to 5 percent of auxiliary agent; and the adhesive layer is prepared from the following components in percentage by mass: 30 to 60 percent of rubber B, 10 to 30 percent of inorganic mineral, 10 to 30 percent of tackifying resin, 3 to 10 percent of polyisobutene and 1 to 3 percent of plasticizer. The prepared polyethylene anticorrosion adhesive tape has high peel strength to a back material, namely the adhesive layer has high peel strength to the back of the polyethylene base film, and the maximum peel strength is 40.0N/cm.
Description
One, technical field
The present invention relates to a kind of metallic conduit outer wall that is wound in etch-proof adhesive tape, particularly a kind of anticorrosion adhesive tape of polyethylene to back of the body high-peeling strength.
Two, background technology
The protective system of the anticorrosion adhesive tape of polyethylene generally is made of priming paint-anticorrosion band (interior band)-boundary belt (in addition).Priming paint is formulated through organic solvent by isoprene-isobutylene rubber and tackifying resin, guarantees to have good bonding force with steel pipe.Inside and outside band is made of polyethylene based film and butyl rubber adhesive, and good physical strength and adhering and sealing performance are arranged.The anticorrosive quality of the anticorrosion adhesive tape of polyethylene depends primarily on the cohesive force of glue-membrane interface.
With respect to other impregnating material, polyethylene antiseptic adhesive tape has good impact resistance, good static-pressure-resisting, the excellent waterproof stopping property, construction is simple, long service life, characteristics such as suitability is wide are so occupy certain status in the pipeline corrosion protection material system.But the ability of its anti-soil stress is bad, especially at high temperature, and can be because of cohesive force difference and the high cathode screen (oil gas accumulating,, the 22nd the 8th phase of volume in 2003) that produces of compactness.
Deficiency at the existence of polyethylene adhesive tape; bring into use three-decker polyethylene corrosion protection coating the external eighties; its epoxy powder that the North America is good combines with the polyethylene barrier protection layer in Europe; make this system have very high cohesive force, good antikathode separability, chemical barrier characteristic and antioxygen, but its cost is higher relatively.(coal gas and heating power,, the 25th the 8th phase of volume in 2005).Domestic, patent CN1234422-A has prepared the polyethylene anticorrosion adhesive band of high interface physical strength by polyethylene based film and pressure-sensitive isoprene-isobutylene rubber glue-line is compound under the heat fusing condition.Patent CN1057612-A utilizes glass enhancing basement membrane to prepare high-tensile anticorrosion adhesive tape.But relevant high anticorrosion adhesive tape to back of the body stripping strength aspect yet there are no open report.
Three, summary of the invention
Because the such environmental effects of various places, requirement to adhesive tape is also different, the purpose of this invention is to provide a kind of controlled anticorrosion adhesive tape of polyethylene to back of the body stripping strength and preparation method thereof, especially a kind of high anticorrosion adhesive tape of polyethylene and preparation thereof to back of the body stripping strength.
The technical solution used in the present invention is:
The anticorrosion adhesive tape of a kind of polyethylene is characterized in that the anticorrosion adhesive tape of described polyethylene is made up of polyethylene based film and glue paste layer, and wherein the glue paste layer is to be mixed by each component of glue paste layer to be coated on compound obtaining on the polyethylene based film after forcing machine is extruded;
Described polyethylene based film is made by the component of following massfraction: new LDPE (film grade) 40～60%, high density polyethylene(HDPE) 10～45%, the multipolymer 5～25% of ethene and vinyl acetate, rubber A0～5%, auxiliary agent 0～5%;
Described glue paste layer is made by the component of following massfraction: rubber B 30%～60%, inorganic mineral 10～30%, tackifying resin 10～30%, polyisobutene 3～10%, softening agent 1～3%.
The thickness of described polyethylene based film is 0.2～0.8mm, and preferred 0.4～0.8mm, the thickness of glue paste layer are 0.15～0.8mm, preferred 0.3～0.6mm.
The component concentration of rubber A is 0～5% in the polyethylene based film of the present invention, wherein 0 is meant and is infinitely close to 0 but be not 0.
Rubber A of the present invention, rubber B is meant rubber, and A here and B just are used for distinguishing at the distribution polyethylene basement membrane or are distributed in rubber in the glue paste layer, and the notion of both materials is identical.
Rubber A described in the described polyethylene based film is any one or the two or more mixing in natural rubber, isoprene-isobutylene rubber, regeneration natural rubber, the isobutene-diene rubber regeneration.
Rubber B described in the described glue paste layer is any one or the two or more mixing in natural rubber, isoprene-isobutylene rubber, regeneration natural rubber, the isobutene-diene rubber regeneration.
Inorganic mineral described in the described glue paste layer is one or more the mixing in lime carbonate, activated earth or the talcum powder.
Tackifying resin described in the described glue paste layer is one or more the mixing in terpine resin, petroleum resin or the Gum Rosin.
Softening agent is dioctyl ester, dibutylester, dioctyl sebacate or Octyl adipate described in the described glue paste layer.
The component concentration of auxiliary agent is 0～5% in the described polyethylene based film, wherein 0 is meant and is infinitely close to 0 but be not 0.Auxiliary agent described in the described polyethylene based film is one or both in anti-aging agent, the colour batch.This is an auxiliary agent commonly used in the art technology, and anti-aging agent is used to prevent that adhesive tape is subjected to rayed and wearing out that corrosion brings, and colour batch is used for the color processing of anticorrosion adhesive tape so that adapt to producer's demand, all can adopt raw material commonly used on the market.
The present invention also provides the manufacture method of the anticorrosion adhesive tape of described polyethylene, and described method comprises the steps:
(1) gets the component new LDPE (film grade) 40～60% of following massfraction, high density polyethylene(HDPE) 10～45%, the multipolymer 5～25% of ethene and vinyl acetate, rubber A 0～5%, auxiliary agent 0～5% after mixing, is extruded through twin screw extruder, obtain the polyethylene based film that thickness is 0.2～0.8mm, extrusion temperature is 170～190 ℃
(2) get the component rubber B 30%～60% of following massfraction, inorganic mineral 10～30%, tackifying resin 10～30%, polyisobutene 3～10%, softening agent 1～3%, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.15～0.8mm, the thickness of described glue agent layer is controlled by the outlet of control single screw extrusion machine and the distance of polyethylene based film.
The outlet mouth mould of described twin screw extruder is the shape of adhesive tape basementmembrane, can obtain certain thickness film by controlling certain pulling speed, and this is the known preparation methods of those skilled in the art.
After polyethylene based film is come out from the outlet mouth mode pulling of twin screw extruder in the described step (1), need be through cooling (being cooled to usually below 130 ℃) a little, but do not need to be cooled to fully room temperature, the glue paste layer that can extrude with the single screw extrusion machine in the step (2) is directly compound by controlling the membrana oralis and the distance of polyethylene based film that single screw rod is extruded, and controls the thickness of glue paste.This should be the known operative techniquies of those skilled in the art.
Technique effect of the present invention is, the anticorrosion adhesive tape of the polyethylene that makes is to backing stripping strength height, specifically be meant the back of glue paste layer for polyethylene based film, has very high stripping strength, reach as high as 40.0N/cm, and, be regulatable to the backing stripping strength by adjusting the set of dispense ratio of polyethylene based film and glue paste.
Four, description of drawings
The synoptic diagram of Fig. 1 polyethylene anticorrosion adhesive band, A is a polyethylene based film among the figure; B is the glue paste layer.
Five, embodiment
Come technical scheme of the present invention is described further with specific embodiment below, but protection scope of the present invention is not limited thereto.
The anti-aging agent of using among the embodiment is the antioxidant BLE of the newly long chemical company limited in Nantong, and colour batch is the Shanghai PE2718 of sub-Materials Co., Ltd of securing satisfactory grades that shakes.
Embodiment 1:
The composition of polyethylene based film: new LDPE (film grade) 45%, high density polyethylene(HDPE) 30%, the multipolymer of ethene and vinyl acetate (EVA) 20%, isobutene-diene rubber regeneration 2%, isoprene-isobutylene rubber 1%, anti-aging agent 1%, colour batch 1%.
The composition of glue paste: isoprene-isobutylene rubber 10%, natural rubber 30%, isobutene-diene rubber regeneration 10%, lime carbonate 10%, talcum powder 15%, terpine resin 15%, petroleum resin 5%, polyisobutene 3%, dibutylester 2%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.6mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude on the polyethylene based film that is applied to 90～110 ℃, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.5mm.
It reaches 38.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 23MPa.
Embodiment 2:
The composition of polyethylene based film: new LDPE (film grade) 50%, high density polyethylene(HDPE) 30%, the multipolymer of ethene and vinyl acetate (EVA) 15%, isoprene-isobutylene rubber 3%, anti-aging agent 1%, colour batch 1%.
The composition of glue paste: isoprene-isobutylene rubber 25%, natural rubber 20%, isobutene-diene rubber regeneration 7%, lime carbonate 13%, talcum powder 12%, terpine resin 13%, petroleum resin 5%, polyisobutene 4%, dibutylester 1%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.5mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on 40～60 ℃ the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.4mm.
It reaches 35.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 24MPa.
Embodiment 3
The composition of polyethylene based film: new LDPE (film grade) 55%, high density polyethylene(HDPE) 20%, the multipolymer of ethene and vinyl acetate (EVA) 15%, isoprene-isobutylene rubber 3%, isobutene-diene rubber regeneration 2%, anti-aging agent 3%, colour batch 2%.
The composition of glue paste: isoprene-isobutylene rubber 20%, natural rubber 10%, isobutene-diene rubber regeneration 30%, lime carbonate 5%, talcum powder 5%, terpine resin 10%, petroleum resin 4%, Gum Rosin 5%, polyisobutene 10%, dibutylester 1%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.4mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on 60～80 ℃ the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.6mm.
It reaches 40.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 23MPa.
Embodiment 4
The composition of polyethylene based film: new LDPE (film grade) 50%, high density polyethylene(HDPE) 20%, the multipolymer of ethene and vinyl acetate (EVA) 25%, regeneration natural rubber 2%, anti-aging agent 2%, colour batch 1%.
The composition of glue paste: isoprene-isobutylene rubber 10%, natural rubber 20%, isobutene-diene rubber regeneration 25%, regeneration natural rubber 5%, lime carbonate 5%, talcum powder 8%, terpine resin 5%, petroleum resin 13%, polyisobutene 6%, dibutylester 3%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.5mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on 80～90 ℃ the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.3mm.
It reaches 34.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 22MPa.
Embodiment 5:
The composition of polyethylene based film: new LDPE (film grade) 40%, high density polyethylene(HDPE) 45%, the multipolymer of ethene and vinyl acetate (EVA) 10%, isobutene-diene rubber regeneration 3%, anti-aging agent 1%, colour batch 1%.
The composition of glue paste: isoprene-isobutylene rubber 10%, natural rubber 10%, isobutene-diene rubber regeneration 10%, lime carbonate 10%, talcum powder 15%, activated earth 5%, terpine resin 15%, petroleum resin 5%, Gum Rosin 10%, polyisobutene 8%, dibutylester 2%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.8mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude on the polyethylene based film that is applied to 90～110 ℃, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.5mm.
It reaches 33.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 23MPa.
Embodiment 6:
The composition of polyethylene based film: new LDPE (film grade) 50%, high density polyethylene(HDPE) 40%, the multipolymer of ethene and vinyl acetate (EVA) 5%, isoprene-isobutylene rubber 3%, anti-aging agent 1%, colour batch 1%.
The composition of glue paste: isoprene-isobutylene rubber 25%, natural rubber 20%, isobutene-diene rubber regeneration 5%, lime carbonate 15%, talcum powder 10%, terpine resin 10%, petroleum resin 10%, polyisobutene 4%, dibutylester 1%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.4mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on 90～110 ℃ the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.4mm.
It reaches 36.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 24MPa.
Embodiment 7
The composition of polyethylene based film: new LDPE (film grade) 60%, high density polyethylene(HDPE) 10%, the multipolymer of ethene and vinyl acetate (EVA) 20%, natural rubber 5%, anti-aging agent 3%, colour batch 2%.
The composition of glue paste: isoprene-isobutylene rubber 20%, natural rubber 20%, isobutene-diene rubber regeneration 10%, regeneration natural rubber 10%, talcum powder 10%, activated earth 5%, Gum Rosin 10%, petroleum resin 4%, polyisobutene 10%, dibutylester 1%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.4mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on 90～110 ℃ the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.6mm.
It reaches 39.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 24MPa.
Embodiment 8
The composition of polyethylene based film: new LDPE (film grade) 50%, high density polyethylene(HDPE) 20%, the multipolymer of ethene and vinyl acetate (EVA) 25%, regeneration natural rubber 2%, anti-aging agent 2%, colour batch 1%.
The composition of glue paste: isoprene-isobutylene rubber 10%, natural rubber 20%, isobutene-diene rubber regeneration 25%, regeneration natural rubber 5%, talcum powder 15%, terpine resin 6%, petroleum resin 10%, polyisobutene 6%, dibutylester 3%.
(1) get above-mentioned polyvinyl membrane component, after mixing, extrude through twin screw extruder, obtain the polyethylene based film that thickness is 0.5mm, extrusion temperature is 170～190 ℃.
(2) get as above glue paste component, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on 70～90 ℃ the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.3mm.
It reaches 34.0N/cm to the back of the body stripping strength product that makes, and the base material tensile strength is at 23MPa.
Claims (9)
1. anticorrosion adhesive tape of polyethylene is characterized in that the anticorrosion adhesive tape of described polyethylene is made up of polyethylene based film and glue paste layer, and wherein the glue paste layer is to be mixed by each component of glue paste layer to be coated on compound obtaining on the polyethylene based film after forcing machine is extruded;
Described polyethylene based film is made by the component of following massfraction: new LDPE (film grade) 40～60%, and high density polyethylene(HDPE) 10～45%, the multipolymer 5～25% of ethene and vinyl acetate, rubber A 0～5%, auxiliary agent 0～5%:
Described glue paste layer is made by the component of following massfraction: rubber B 30%～60%, inorganic mineral 10～30%, tackifying resin 10～30%, polyisobutene 3～10%, softening agent 1～3%.
2. the anticorrosion adhesive tape of polyethylene as claimed in claim 1, the thickness that it is characterized in that described polyethylene based film is 0.2～0.8mm, the thickness of glue paste layer is 0.15～0.8mm.
3. the anticorrosion adhesive tape of polyethylene as claimed in claim 1 is characterized in that rubber A described in the described polyethylene based film is any one or the two or more mixing in natural rubber, isoprene-isobutylene rubber, regeneration natural rubber, the isobutene-diene rubber regeneration.
4. the anticorrosion adhesive tape of polyethylene as claimed in claim 1 is characterized in that rubber B described in the described glue paste layer is any one or the two or more mixing in natural rubber, isoprene-isobutylene rubber, regeneration natural rubber, the isobutene-diene rubber regeneration.
5. the anticorrosion adhesive tape of polyethylene as claimed in claim 1 is characterized in that inorganic mineral described in the described glue paste layer is one or more the mixing in lime carbonate, activated earth or the talcum powder.
6. the anticorrosion adhesive tape of polyethylene as claimed in claim 1 is characterized in that tackifying resin described in the described glue paste layer is one or more the mixing in terpine resin, petroleum resin or the Gum Rosin.
7. the anticorrosion adhesive tape of polyethylene as claimed in claim 1 is characterized in that softening agent is dioctyl ester, dibutylester, dioctyl sebacate, Octyl adipate described in the described glue paste layer.
8. the anticorrosion adhesive tape of polyethylene as claimed in claim 1 is characterized in that auxiliary agent described in the described polyethylene based film is one or both in anti-aging agent, the colour batch.
9. the manufacture method of the anticorrosion adhesive tape of polyethylene as claimed in claim 1 is characterized in that described method comprises the steps:
(1) gets the component of following massfraction: new LDPE (film grade) 40～60%, high density polyethylene(HDPE) 10～45%, the multipolymer 5～25% of ethene and vinyl acetate, rubber A 0～5%, auxiliary agent 0～5%, after mixing, extrude through twin screw extruder and to obtain the polyethylene based film that thickness is 0.2～0.8mm, extrusion temperature is 170～190 ℃;
(2) get the component of following massfraction: rubber B 30%～60%, inorganic mineral 10～30%, tackifying resin 10～30%, polyisobutene 3～10%, softening agent 1～3%, after mixing, add in the single screw extrusion machine, under 130～140 ℃ extrusion temperature, directly extrude and be applied on the polyethylene based film that step (1) obtains, the compound polyethylene anticorrosion adhesive adhesive tape that obtains, the thickness of control glue paste layer is 0.15～0.8mm, the thickness of described glue agent layer is controlled by the outlet of control single screw extrusion machine and the distance of polyethylene based film.
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Cited By (13)
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| CN102418814A (en) * | 2011-08-11 | 2012-04-18 | 浙江世进水控股份有限公司 | Flexible composite pipe product and marking method |
| CN102604558A (en) * | 2012-03-28 | 2012-07-25 | 上海鑫冠橡胶材料有限公司 | Heat-resistant laminated-positioning electronic adhesive tape for solar cell and preparation method thereof |
| CN103074004A (en) * | 2013-01-06 | 2013-05-01 | 吴孟怀 | Plastic-coated butyl insulating tape |
| CN103709961A (en) * | 2013-12-05 | 2014-04-09 | 江苏金波新材料科技有限公司 | Adhesive for composite tubes |
| CN103980836A (en) * | 2014-04-30 | 2014-08-13 | 安徽省宁国市明浩包装材料有限公司 | Degradable waterproof sealing tape |
| CN103980836B (en) * | 2014-04-30 | 2016-11-30 | 刘孟香 | A kind of degradable water-proof seal adhesive tape |
| CN109321149A (en) * | 2018-09-04 | 2019-02-12 | 李九梅 | A kind of steel structure surface curing film |
| CN110041841A (en) * | 2019-05-06 | 2019-07-23 | 湖南省普瑞达内装材料有限公司 | A kind of heat-resistant fireproof insulating tape |
| CN111145635A (en) * | 2019-12-26 | 2020-05-12 | 深圳深汕特别合作区昌茂粘胶新材料有限公司 | PE/EVA foam adhesive tape and preparation method thereof |
| CN111471408A (en) * | 2020-04-09 | 2020-07-31 | 海油发展珠海管道工程有限公司 | Polyethylene composite belt and preparation, joint coating process method and application thereof |
| CN112662084A (en) * | 2021-01-20 | 2021-04-16 | 深圳市益达兴技术研究有限公司 | Sizing material for butyl rubber and natural rubber composite adhesive tape and preparation method thereof |
| CN112940376A (en) * | 2021-01-23 | 2021-06-11 | 南昌诚鑫包装有限公司 | Manufacturing method of puncture-resistant high-strength frozen polyethylene film |
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| CN102418814A (en) * | 2011-08-11 | 2012-04-18 | 浙江世进水控股份有限公司 | Flexible composite pipe product and marking method |
| CN102604558A (en) * | 2012-03-28 | 2012-07-25 | 上海鑫冠橡胶材料有限公司 | Heat-resistant laminated-positioning electronic adhesive tape for solar cell and preparation method thereof |
| CN102604558B (en) * | 2012-03-28 | 2015-02-11 | 温州耐德胶粘合有限公司 | Heat-resistant laminated-positioning electronic adhesive tape for solar cell and preparation method thereof |
| CN103074004A (en) * | 2013-01-06 | 2013-05-01 | 吴孟怀 | Plastic-coated butyl insulating tape |
| CN103709961A (en) * | 2013-12-05 | 2014-04-09 | 江苏金波新材料科技有限公司 | Adhesive for composite tubes |
| CN103709961B (en) * | 2013-12-05 | 2016-06-15 | 江苏金波新材料科技有限公司 | A kind of binding agent of composite pipe |
| CN103980836A (en) * | 2014-04-30 | 2014-08-13 | 安徽省宁国市明浩包装材料有限公司 | Degradable waterproof sealing tape |
| CN103980836B (en) * | 2014-04-30 | 2016-11-30 | 刘孟香 | A kind of degradable water-proof seal adhesive tape |
| CN109321149A (en) * | 2018-09-04 | 2019-02-12 | 李九梅 | A kind of steel structure surface curing film |
| CN110041841A (en) * | 2019-05-06 | 2019-07-23 | 湖南省普瑞达内装材料有限公司 | A kind of heat-resistant fireproof insulating tape |
| CN111145635A (en) * | 2019-12-26 | 2020-05-12 | 深圳深汕特别合作区昌茂粘胶新材料有限公司 | PE/EVA foam adhesive tape and preparation method thereof |
| CN111471408A (en) * | 2020-04-09 | 2020-07-31 | 海油发展珠海管道工程有限公司 | Polyethylene composite belt and preparation, joint coating process method and application thereof |
| CN112662084A (en) * | 2021-01-20 | 2021-04-16 | 深圳市益达兴技术研究有限公司 | Sizing material for butyl rubber and natural rubber composite adhesive tape and preparation method thereof |
| CN112940376A (en) * | 2021-01-23 | 2021-06-11 | 南昌诚鑫包装有限公司 | Manufacturing method of puncture-resistant high-strength frozen polyethylene film |
| CN112940376B (en) * | 2021-01-23 | 2023-04-07 | 南昌诚鑫包装有限公司 | Manufacturing method of puncture-resistant high-strength frozen polyethylene film |
| CN113736377A (en) * | 2021-09-16 | 2021-12-03 | 济宁迅大管道防腐材料有限公司 | Polyethylene anti-corrosion belt for buried steel pipeline |
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