CN110093127A - A kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt - Google Patents

A kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt Download PDF

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Publication number
CN110093127A
CN110093127A CN201910342914.9A CN201910342914A CN110093127A CN 110093127 A CN110093127 A CN 110093127A CN 201910342914 A CN201910342914 A CN 201910342914A CN 110093127 A CN110093127 A CN 110093127A
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China
Prior art keywords
polyethylene
melt adhesive
mating
pipeline joint
hot
Prior art date
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Pending
Application number
CN201910342914.9A
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Chinese (zh)
Inventor
杨军伟
韦良
张志强
张徐文
於维伟
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Jiangsu Dasheng Thermal Shrinkable Products Co Ltd
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Jiangsu Dasheng Thermal Shrinkable Products Co Ltd
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Publication date
Application filed by Jiangsu Dasheng Thermal Shrinkable Products Co Ltd filed Critical Jiangsu Dasheng Thermal Shrinkable Products Co Ltd
Priority to CN201910342914.9A priority Critical patent/CN110093127A/en
Publication of CN110093127A publication Critical patent/CN110093127A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • 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
    • C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
    • C09J151/06—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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

Abstract

The present invention relates to a kind of mating polyethylene hot-melt adhesives of Pipeline joint anticorrosion shrink belt, are made by matrix resin component and graft component by melting graft reaction；Matrix resin component includes polyethylene, ethylene-octene copolymer, tackifying resin；Graft component includes maleic anhydride, cumyl peroxide, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, three [2,4- di-tert-butyl-phenyl] phosphite esters.Polyethylene hot-melt adhesive of the invention is used for Pipeline joint anticorrosion, and cementability and preserving and sealing are excellent, softening point is high, high temperature resistance is good, shear strength and peel strength with higher, performance stabilization；Polyethylene hot-melt adhesive of the invention can reach 0.61MPa in 100 DEG C of shear strengths, peel strength can reach 22N/cm, the requirement run under the conditions of can satisfy long-term 100 DEG C of pipeline, the pipeline corrosion protection effect in the area high to environment temperature is fairly obvious, fills up the blank of related repaired mouth hot melt adhesive product both at home and abroad.

Description

A kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt
Technical field
The present invention relates to shrink belt field more particularly to a kind of mating polyethylene heat of Pipeline joint anticorrosion shrink belt Melten gel.
Background technique
Three-layer polyethylene (3PE) corrosion-inhibiting coating belongs to multilayer coating system, by bottom epoxy powder, middle layer bonding agent and Outer layer PE (polyethylene) is constituted.Conventional 3PE repaired mouth pyrocondensation belt can achieve 80 DEG C with the general heatproof of hot melt adhesive, and polyethylene is mended Mouth pyrocondensation belt is more significant with polyethylene hot-melt adhesive heatproof odds ratio, can achieve 110 DEG C.Many petroleum resources country ground abundant Such as Iraq, the Sudan etc., environmental condition is more severe in area, and common hot melt glue type repaire belt is due to the lower coating temperature of sunshine Raising causes coating machinery reduced performance, is not able to satisfy the requirement in these areas, and polyethylene repaire belt is using temperature On advantage, enable it to meet the application in above-mentioned area.But the heat resistance of polyethylene repaire belt also needs at present It improves.Polyethylene hot-melt adhesive is the key components of polyethylene shrink belt, and performance directly decides polyethylene heat The performance of shrinkage band.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of 3PE Pipeline joint anticorrosion heat receipts that temperature resistant grade is high Contracting fills up the blank of domestic and international related fields with mating high-performance polyethylene hot melt adhesive material.
In order to achieve the above objectives, the technical solution adopted by the present invention are as follows: provide a kind of Pipeline joint anticorrosion thermal contraction With mating polyethylene hot-melt adhesive, it is characterised in that: be made by matrix resin component and graft component by melting graft reaction；Institute Stating matrix resin component includes polyethylene, ethylene-octene copolymer, tackifying resin；The graft component includes maleic anhydride, mistake Aoxidize diisopropylbenzene (DIPB), four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, three [2,4- di-tert-butyls Base] phosphite ester；The mass ratio of described matrix resin Composition and graft component are as follows: 100:0.7-100:1.5.
As a preferred embodiment, described matrix resin Composition is by polyethylene 60-75wt%, ethylene-octene copolymer 20- 35wt%, tackifying resin 2-5wt% composition；The graft component is by maleic anhydride 50-60wt%, cumyl peroxide 15- 20wt%, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester 15-20wt %, three [2.4- di-t-butyls Phenyl] phosphite ester 10-15wt% composition.
As a preferred embodiment, the polyethylene is linear low density polyethylene, one kind of low density polyethylene (LDPE) or two Kind.
As a kind of more preferable scheme, the polyethylene melt index is 5-10g/ under conditions of 190 DEG C, 2.16kg 10min。
As a preferred embodiment, the ethylene-octene copolymer melt index is under conditions of 190 DEG C, 2.16kg 5-15g/10min。
As a preferred embodiment, the tackifying resin ring and ball softening point is 100-120 DEG C.
As a preferred embodiment, by described matrix resin Composition and graft component, fusion-grafting is anti-at 155-170 DEG C It after answering 2min, is squeezed out by double screw extruder, granulation is made.
The beneficial technical effect of the present invention lies in: polyethylene hot-melt adhesive of the invention is used for Pipeline joint anticorrosion, Cementability and preserving and sealing are excellent, softening point is high, high temperature resistance is good, shear strength and peel strength with higher, property It can stablize；Polyethylene hot-melt adhesive of the invention can reach 0.61MPa in 100 DEG C of shear strengths, and peel strength can reach 22N/cm, The pipeline corrosion protection effect ten of the requirement run under the conditions of can satisfy long-term 100 DEG C of pipeline, the area high to environment temperature is clearly demarcated It is aobvious, fill up the blank of related repaired mouth hot melt adhesive product both at home and abroad.
Specific embodiment
The invention will be further described combined with specific embodiments below.Following embodiment is only used for clearly illustrating Technical solution of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt: by matrix resin component and graft component 155 It at DEG C after melting graft reaction 2min, is squeezed out by double screw extruder, granulation is made.
Matrix resin is by linear low density polyethylene polyethylene 33.5wt%, low density polyethylene (LDPE) 26.5wt%, ethylene-octene Copolymer 35wt%, tackifying resin 5wt% composition.
Wherein linear low density polyethylene polyethylene and low density polyethylene (LDPE) play improve hot melt adhesive heat resistance and provide and The effect of the bonding force of polyethylene, the melt index (190 DEG C, 2.16kg) of mixture are 5g/10min.Ethylene-octene copolymerization Object plays the role of increasing toughness and trickling property, while improving the bonding force with polar material；Its melt index (190 DEG C, It 2.16kg) is 10g/10min.Tackifying resin plays the role of increasing adhesive adhesive property；Its ring and ball softening point is 120 DEG C.
Graft component is by maleic anhydride 59.3wt%, cumyl peroxide 11.1wt%, four [β-(3,5- di-t-butyl -4- Hydroxy phenyl) propionic acid] pentaerythritol ester 18.5wt%, three [2,4- di-tert-butyl-phenyl] phosphite ester 11.1wt%.
Wherein maleic anhydride is grafted monomers, can improve the compatibility of matrix resin and the bonding force to polar material.It crosses Aoxidizing diisopropylbenzene (DIPB) is crosslinking agent, improves grafting rate of the maleic anhydride on matrix resin.
Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, three [2,4- di-tert-butyl-phenyls] are sub- Phosphate is antioxidant, plays the role of slowing down material aging；Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] Pentaerythritol ester is Hinered phenols antioxidant, as primary antioxidant；Three [2,4- di-tert-butyl-phenyl] phosphite esters are phosphorous acid Esters antioxygen, as secondary antioxidant.
The mass ratio of matrix resin component and graft component are as follows: 100:1.5.
1 polyethylene hot-melt adhesive the performance test results of table
Project Test temperature Unit Test result Standard requirements
Room temperature lap shear strength 23℃ MPa 5.5 ≥5
High temperature lap shears intensity 100℃ MPa 0.61 ≥0.5
Softening point (ring and ball method) —— ℃ 177 ≥150
Room temperature peel strength 23℃ N/cm 54 ≥40
High temperature peel strength 100℃ N/cm 22 ≥20
Embodiment 2
A kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt: by matrix resin component and graft component 170 It at DEG C after melting graft reaction 2min, is squeezed out by double screw extruder, granulation is made.
Matrix resin is by linear low density polyethylene polyethylene 35wt%, low density polyethylene (LDPE) 40wt%, ethylene-octene copolymerization Object 20wt%, tackifying resin 5wt% composition.
Wherein the mixture of linear low density polyethylene polyethylene and low density polyethylene (LDPE) melt index (190 DEG C, It 2.16kg) is 10g/10min；The melt index (190 DEG C, 2.16kg) of ethylene-octene copolymer is 5g/10min；Tackifying resin Ring and ball softening point be 100 DEG C.
Graft component is by maleic anhydride 60wt%, cumyl peroxide 15wt%, four [β-(3,5- di-t-butyl -4- hydroxyls Phenyl) propionic acid] pentaerythritol ester 15wt%, three [2,4- di-tert-butyl-phenyl] phosphite ester 10wt% composition.
The mass ratio of matrix resin component and graft component are as follows: 100:0.7.
The above components are played the role of with embodiment 1.
2 polyethylene hot-melt adhesive the performance test results of table
Project Test temperature Unit Test result Standard requirements
Room temperature lap shear strength 23℃ MPa 6.3 ≥5
High temperature lap shears intensity 100℃ MPa 0.73 ≥0.5
Softening point (ring and ball method) —— ℃ 185 ≥150
Room temperature peel strength 23℃ N/cm 45 ≥40
High temperature peel strength 100℃ N/cm 31 ≥20
Embodiment 3
A kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt: by matrix resin component and graft component 165 It at DEG C after melting graft reaction 2min, is squeezed out by double screw extruder, granulation is made.
Matrix resin is by linear low density polyethylene polyethylene 35wt%, low density polyethylene (LDPE) 35wt%, ethylene-octene copolymerization Object 28wt%, tackifying resin 2wt% composition.
Wherein the mixture of linear low density polyethylene polyethylene and low density polyethylene (LDPE) melt index (190 DEG C, It 2.16kg) is 8g/10min；The melt index (190 DEG C, 2.16kg) of ethylene-octene copolymer is 15g/10min；Tackifying resin Ring and ball softening point be 100 DEG C.
Graft component is by maleic anhydride 50wt%, cumyl peroxide 19.5wt%, four [β-(3,5- di-t-butyl -4- hydroxyls Base phenyl) propionic acid] pentaerythritol ester 15.5wt%, three [2,4- di-tert-butyl-phenyl] phosphite ester 15wt% composition.
The mass ratio of matrix resin component and graft component are as follows: 100:1.0.
The above components are played the role of with embodiment 1.
3 polyethylene hot-melt adhesive the performance test results of table
Project Test temperature Unit Test result Standard requirements
Room temperature lap shear strength 23℃ MPa 5.8 ≥5
High temperature lap shears intensity 100℃ MPa 0.64 ≥0.5
Softening point (ring and ball method) —— ℃ 168 ≥150
Room temperature peel strength 23℃ N/cm 51 ≥40
High temperature peel strength 100℃ N/cm 33 ≥20
The present invention is through test of many times, and the polyethylene hot-melt adhesive high temperature resistance is superior, high temperature bonding intensity is high, shear at high temperature intensity Greatly, good airproof performance, it can be ensured that the quality of pipeline anticorrosion coating and joint coating on pipeline.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.

Claims (7)

1. a kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt, it is characterised in that: by matrix resin component with Graft component is made by melting graft reaction；Described matrix resin Composition includes polyethylene, ethylene-octene copolymer, thickening Resin；The graft component includes maleic anhydride, cumyl peroxide, four [β-(3,5- di-tert-butyl-hydroxy phenyl) third Acid] pentaerythritol ester, three [2,4- di-tert-butyl-phenyl] phosphite esters；The mass ratio of described matrix resin Composition and graft component Are as follows: 100:0.7-100:1.5.
2. the mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt according to claim 1, it is characterised in that: Described matrix resin Composition is made of polyethylene 60-75wt%, ethylene-octene copolymer 20-35wt%, tackifying resin 2-5wt%； The graft component is by maleic anhydride 50-60wt%, cumyl peroxide 15-20wt%, four [β-(3,5- di-t-butyl -4- hydroxyls Base phenyl) propionic acid] pentaerythritol ester 15-20wt %, three [2.4- di-tert-butyl-phenyl] phosphite ester 10-15wt% composition.
3. the mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt according to claim 1 or 2, feature exist In: the polyethylene is linear low density polyethylene, the one or two of low density polyethylene (LDPE).
4. the mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt according to claim 3, it is characterised in that: institute It is 5-10g/10min that polyethylene melt index, which is stated, under conditions of 190 DEG C, 2.16kg.
5. the mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt according to claim 1 or 2, feature exist In: the ethylene-octene copolymer melt index is 5-15g/10min under conditions of 190 DEG C, 2.16kg.
6. the mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt according to claim 1 or 2, feature exist In: the tackifying resin ring and ball softening point is 100-120 DEG C.
7. the mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt according to claim 1 or 2, feature exist In: after melting graft reaction 2min, pass through twin-screw extrusion at 155-170 DEG C by described matrix resin Composition and graft component Machine squeezes out, is granulated and is made.
CN201910342914.9A 2019-04-26 2019-04-26 A kind of mating polyethylene hot-melt adhesive of Pipeline joint anticorrosion shrink belt Pending CN110093127A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111363486A (en) * 2020-04-30 2020-07-03 江苏达胜热缩防护用品有限公司 Radiation cross-linked polyethylene composite belt for corrosion prevention of buried steel elbow pipe and preparation method thereof
CN113604172A (en) * 2021-09-10 2021-11-05 上海长园电子材料有限公司 High-low temperature resistant hot melt adhesive, and preparation method and application thereof
CN114369432A (en) * 2021-12-30 2022-04-19 上海邦中新材料有限公司 Hot melt adhesive for PERT steel wire mesh pipe and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1754932A (en) * 2004-09-30 2006-04-05 赵璐 Polymer adhesive resin for corrosion-prevention of steel pipe and preparation process thereof
US20150210902A1 (en) * 2014-01-27 2015-07-30 Equistar Chemicals, Lp Polyolefin-based compositions, adhesives, and related mutli-layered structures prepared therefrom
CN106318274A (en) * 2016-08-25 2017-01-11 中国石油天然气集团公司 Polypropylene hot melt adhesive, preparation method thereof and preparation method of polypropylene contraction band
CN109666432A (en) * 2018-12-20 2019-04-23 上海邦中高分子材料股份有限公司 A kind of multi-layer co-extruded plastic composite pipe hot melt adhesive and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1754932A (en) * 2004-09-30 2006-04-05 赵璐 Polymer adhesive resin for corrosion-prevention of steel pipe and preparation process thereof
US20150210902A1 (en) * 2014-01-27 2015-07-30 Equistar Chemicals, Lp Polyolefin-based compositions, adhesives, and related mutli-layered structures prepared therefrom
CN106318274A (en) * 2016-08-25 2017-01-11 中国石油天然气集团公司 Polypropylene hot melt adhesive, preparation method thereof and preparation method of polypropylene contraction band
CN109666432A (en) * 2018-12-20 2019-04-23 上海邦中高分子材料股份有限公司 A kind of multi-layer co-extruded plastic composite pipe hot melt adhesive and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111363486A (en) * 2020-04-30 2020-07-03 江苏达胜热缩防护用品有限公司 Radiation cross-linked polyethylene composite belt for corrosion prevention of buried steel elbow pipe and preparation method thereof
CN113604172A (en) * 2021-09-10 2021-11-05 上海长园电子材料有限公司 High-low temperature resistant hot melt adhesive, and preparation method and application thereof
CN113604172B (en) * 2021-09-10 2022-10-18 上海长园电子材料有限公司 High-low temperature resistant hot melt adhesive, and preparation method and application thereof
CN114369432A (en) * 2021-12-30 2022-04-19 上海邦中新材料有限公司 Hot melt adhesive for PERT steel wire mesh pipe and preparation method thereof

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