CN111040680A - Special hot melt adhesive for coating temperature-resistant oil-resistant steel wire - Google Patents
Special hot melt adhesive for coating temperature-resistant oil-resistant steel wire Download PDFInfo
- Publication number
- CN111040680A CN111040680A CN201911378103.0A CN201911378103A CN111040680A CN 111040680 A CN111040680 A CN 111040680A CN 201911378103 A CN201911378103 A CN 201911378103A CN 111040680 A CN111040680 A CN 111040680A
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- Prior art keywords
- resistant
- hot melt
- oil
- steel wire
- temperature
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Classifications
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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
- 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
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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
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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
- C08F255/026—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 on to ethylene-vinylester copolymers
-
- 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
- C08F287/00—Macromolecular compounds obtained by polymerising monomers on to block polymers
-
- 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
- C09J151/006—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 block copolymers containing at least one sequence of polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds
Abstract
The invention relates to the field of hot melt adhesives special for steel wire coating, and on one hand, provides a hot melt adhesive special for temperature-resistant and oil-resistant steel wire coating, which comprises the following components in percentage by weight: 20-85% of heat-resistant polyethylene, 5-50% of styrene block copolymer, 0.1-5% of grafting monomer, 0.1-5% of initiator and 5-20% of ethylene copolymer. The invention also provides a preparation method of the special hot melt adhesive for coating the temperature-resistant and oil-resistant steel wire. The special hot melt adhesive for coating the temperature-resistant and oil-resistant steel wire can keep the self performance of the adopted heat-resistant polyethylene at high temperature, so that the bonding performance is not obviously attenuated; the styrene block copolymer has good oil absorption performance, and can well absorb the grease remained on the interface during hot coating; the ethylene copolymer can greatly improve the monomer grafting rate and obviously improve the adhesive property of the hot melt adhesive. In addition, the compound of the monomer grafted special polyethylene and styrene block copolymer is adopted, so that the temperature resistance and oil resistance of the compound are enhanced, excellent bonding strength can be provided, and a good use process is ensured.
Description
Technical Field
The invention relates to the field of hot melt adhesives special for steel wire coating, in particular to a hot melt adhesive special for temperature-resistant and oil-resistant steel wire coating.
Background
The steel wire wound reinforced polyethylene composite pipe is a pressure-resistant composite pipe manufactured by using a spirally wound steel wire as a middle reinforcing layer, combines the advantages of sanitation, corrosion resistance and high strength of the steel wire of polyethylene, and has the national standard of GB/T32439-2015. The pipeline can be widely applied to the pressure-resistant water supply field, such as municipal administration, road and bridge, chemical industry, agriculture and the like. Due to the good stability and pressure resistance of pipelines, more and more extensive applications are achieved in recent years.
The steel wire used for reinforcing in the pipeline is a copper-plated steel wire, and the steel wire and the polyethylene material have no adhesiveness, so that a layer of hot melt adhesive needs to be coated in advance to ensure the interface bonding force during production, and the overall stability of the pipeline is ensured.
Chinese patent: the publication number CN102040931A reports a hot melt adhesive for the adhesive resin of the steel wire winding reinforced polyethylene composite pipe, which can realize the adhesion of a steel wire and a polyethylene layer and can meet the basic performance requirements of pipelines. Chinese patent: the publication No. 108264866A discloses a high-strength adhesive resin for a steel wire-wound reinforced polyethylene composite pipe, and a preparation method and application thereof report that a hot melt adhesive with high strength performance can provide better pressure resistance in addition to meeting the basic performance requirements of pipelines.
However, the above patent does not consider the characteristics of the steel wire production process, and the steel wire provided by the manufacturer at present generally adopts a mode of coating a layer of anti-corrosion oil to protect the surface of the steel wire and prevent the surface layer of the steel wire from being corroded when the steel wire is transported or stored. Although the layer of anti-corrosive oil plays a role of corrosion prevention, the adhesion of the hot melt adhesive and the steel wire is affected because the grease has a barrier function.
Meanwhile, in the national standard of steel wire wound reinforced composite pipes, the pipeline is required to meet the high-temperature hydrostatic pressure test, and the hot melt adhesive coating with general performance has poor heat resistance and is easy to be debonded at high temperature, so that the product performance is influenced. Therefore, in order to solve the above two problems, it is necessary to develop a special temperature-resistant oil-resistant steel wire coating hot melt adhesive.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the special hot melt adhesive for coating the temperature-resistant and oil-resistant steel wire, which adopts the monomer to graft the compound of the special polyethylene and the styrene block copolymer, enhances the temperature-resistant and oil-resistant performances of the hot melt adhesive, can provide excellent bonding strength and ensures a good use process.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a special hot melt adhesive for coating temperature-resistant and oil-resistant steel wires, which comprises the following components in percentage by weight:
further, the heat-resistant polyethylene is high-density or medium-density polyethylene, the melt index of the heat-resistant polyethylene is 0.1-5.0 g/10min, and the density of the heat-resistant polyethylene is 0.93-0.96g/cm3。
Furthermore, the melt index of the styrene block copolymer is 1-30 g/10min, and the content of the block monomer is 10-30%.
Further, the grafting monomer is methacrylic acid, acrylic acid, maleic anhydride or glycidyl methacrylate.
Further, the initiator is benzoyl peroxide, cumene hydroperoxide, azobisisobutyronitrile, tert-butyl peroxybenzoate or di-tert-butyl peroxide.
Further, the content of ethylene copolymer monomer is 10-30%, the melt index is 1-30 g/10min, and the density is 0.93-0.95g/cm3。
Further, the ethylene copolymer monomer is an ethylene-acrylic acid copolymer or ethylene-vinyl acetate.
The second aspect of the invention provides a preparation method of the special hot melt adhesive for coating the temperature-resistant and oil-resistant steel wires, which comprises the following steps:
(1) mixing heat-resistant polyethylene, styrene block copolymer, ethylene-vinyl acetate copolymer, monomer and initiator according to the weight parts of the raw material components;
(2) adding the mixture into a double-screw extruder, and extruding and granulating at the temperature of 150-200 ℃.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the special hot melt adhesive for coating the temperature-resistant and oil-resistant steel wire provided by the invention has the advantages that the heat-resistant polyethylene can keep the performance at high temperature, so that the bonding performance is not obviously attenuated; the styrene block copolymer has good oil absorption performance, and can well absorb the grease remained on the interface during hot coating; the ethylene copolymer can greatly improve the monomer grafting rate and obviously improve the adhesive property of the hot melt adhesive. In addition, the compound of the monomer grafted special polyethylene and styrene block copolymer is adopted, so that the temperature resistance and oil resistance of the compound are enhanced, excellent bonding strength can be provided, and a good use process is ensured.
Detailed Description
The invention provides a special hot melt adhesive for coating temperature-resistant and oil-resistant steel wires, which is described in detail and specifically by the following specific examples so as to better understand the invention, but the following examples do not limit the scope of the invention.
Example 1
The embodiment provides a preferable special hot melt adhesive for coating temperature-resistant oil-resistant steel wires, which comprises the following components in percentage by weight:
wherein the heat-resistant polyethylene is high-density heat-resistant polyethylene with melt index of 0.1g/10min and density of 0.950g/cm3(ii) a The content of styrene copolymer monomer is 15 percent, and the melt index is 2.5g/10 min; the ethylene-vinyl acetate copolymer monomer content is 18%, the melt index is 1.5g/10min, and the density is 0.935g/cm3。
Example 2
The embodiment provides a preferable special hot melt adhesive for coating temperature-resistant oil-resistant steel wires, which comprises the following components in percentage by weight:
wherein the heat-resistant polyethylene is medium-density heat-resistant polyethylene with melt index of 1.0g/10min and density of 0.938g/cm3(ii) a The content of styrene copolymer monomer is 20 percent, and the melt index is 1.5g/10 min; the ethylene-acrylic acid copolymer monomer content was 12%, the melt index was 9.0g/10min, and the density was 0.956g/cm3。
Example 3
The embodiment provides a preferable special hot melt adhesive for coating temperature-resistant oil-resistant steel wires, which comprises the following components in percentage by weight:
wherein the heat-resistant polyethylene is high-density heat-resistant polyethylene with melt index of 0.1g/10min and density of 0.950g/cm3(ii) a The content of styrene copolymer monomer is 16%, and the melt index is 12g/10 min; the ethylene-acrylic acid copolymer monomer content was 12%, and the melt index was 9.0g/10min, density 0.956g/cm3。
Example 4
The embodiment provides a preparation method of the hot melt adhesive special for coating the temperature-resistant oil-resistant steel wire in the first to third embodiments, which includes the following steps:
(1) mixing heat-resistant polyethylene, styrene block copolymer, ethylene-vinyl acetate copolymer, monomer and initiator according to the weight parts of the raw material components;
(2) adding the mixture into a double-screw extruder, and extruding and granulating at the temperature of 150-200 ℃.
Examples of examination
The test and the steel wire coating production are carried out according to the regulations of the national standard GB/T32439-2015, the temperature resistance and the oil resistance of the hot melt adhesive special for coating the temperature-resistant and oil-resistant steel wires in the examples 1-3 are evaluated by comparing the shear strength, the water resistance and the like, the GS-3220 brand hot melt adhesive of the high molecular material Co., Ltd in the Shanghan is taken as a control group, and the results are as the following table 1:
as can be seen from table 1, the hot melt adhesives for steel wire coating in examples 1 to 3 have good shear strength at high temperature and relatively long water-soaking degumming time compared with the control group, so that the hot melt adhesive special for steel wire coating provided by the invention has good temperature resistance and excellent bonding strength.
TABLE 1 test results of hot melt adhesive coating properties of steel wires
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (8)
1. The hot melt adhesive special for coating the temperature-resistant oil-resistant steel wire is characterized by comprising the following components in percentage by weight:
2. the hot melt adhesive special for coating the temperature-resistant and oil-resistant steel wire as claimed in claim 1, wherein the heat-resistant polyethylene is high-density or medium-density polyethylene, the melt index of the polyethylene is 0.1-5.0 g/10min, and the density of the polyethylene is 0.93-0.96g/cm3。
3. The hot melt adhesive special for coating the temperature-resistant and oil-resistant steel wire according to claim 1, wherein the melt index of the styrene block copolymer is 1-30 g/10min, and the content of the block monomer is 10-30%.
4. The hot melt adhesive special for coating temperature-resistant and oil-resistant steel wires according to claim 1, wherein the grafting monomer is methacrylic acid, acrylic acid, maleic anhydride or glycidyl methacrylate.
5. The hot melt adhesive special for coating the temperature-resistant and oil-resistant steel wire according to claim 1, wherein the initiator is benzoyl peroxide, cumene hydroperoxide, azobisisobutyronitrile, tert-butyl peroxybenzoate or di-tert-butyl peroxide.
6. The hot melt adhesive special for coating the temperature-resistant and oil-resistant steel wire according to claim 1, wherein the ethylene copolymer has a monomer content of 10-30%, a melt index of 1-30 g/10min, and a density of 0.93-0.95g/cm3。
7. The hot melt adhesive special for coating the temperature-resistant and oil-resistant steel wire according to claim 6, wherein the monomer of the ethylene copolymer is ethylene-acrylic acid copolymer or ethylene-vinyl acetate.
8. The preparation method of the special hot melt adhesive for coating the temperature-resistant and oil-resistant steel wire according to any one of claims 1 to 7, characterized by comprising the following steps:
(1) mixing heat-resistant polyethylene, styrene block copolymer, ethylene-vinyl acetate copolymer, monomer and initiator according to the weight percentage of the raw material components;
(2) adding the mixture into a double-screw extruder, and extruding and granulating at the temperature of 150-200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378103.0A CN111040680A (en) | 2019-12-27 | 2019-12-27 | Special hot melt adhesive for coating temperature-resistant oil-resistant steel wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378103.0A CN111040680A (en) | 2019-12-27 | 2019-12-27 | Special hot melt adhesive for coating temperature-resistant oil-resistant steel wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111040680A true CN111040680A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911378103.0A Pending CN111040680A (en) | 2019-12-27 | 2019-12-27 | Special hot melt adhesive for coating temperature-resistant oil-resistant steel wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN111040680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111500200A (en) * | 2020-06-03 | 2020-08-07 | 杭州凡泰塑业有限公司 | Method for bonding polyethylene plastic and steel wire |
| CN115612424A (en) * | 2022-12-21 | 2023-01-17 | 广州鹿山新材料股份有限公司 | High-temperature-resistant adhesive and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0479457A1 (en) * | 1990-09-27 | 1992-04-08 | BP Chemicals Limited | Adhesive or coating compositions and their uses |
| CN102040931A (en) * | 2010-12-31 | 2011-05-04 | 上海邦中高分子材料有限公司 | Bonding resin for steel wire-wound reinforced polyethylene composite pipe |
| CN102086357A (en) * | 2010-12-16 | 2011-06-08 | 广州市合诚化学有限公司 | Adhesive resin used for steel band reinforced polyethylene spiral corrugated pipe and preparation method thereof |
| CN105086879A (en) * | 2015-09-09 | 2015-11-25 | 成都长江热缩材料有限公司 | Pipeline hot melt adhesive and preparation method thereof |
| CN108264866A (en) * | 2016-12-30 | 2018-07-10 | 上海邦中新材料有限公司 | A kind of steel wire winding enhances polyethylene compound pipe high strength bonding resin and its preparation method and application |
| CN109722189A (en) * | 2018-12-20 | 2019-05-07 | 上海邦中高分子材料股份有限公司 | A kind of hot melt adhesive and its preparation method and application for steel wire coating |
-
2019
- 2019-12-27 CN CN201911378103.0A patent/CN111040680A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0479457A1 (en) * | 1990-09-27 | 1992-04-08 | BP Chemicals Limited | Adhesive or coating compositions and their uses |
| CN102086357A (en) * | 2010-12-16 | 2011-06-08 | 广州市合诚化学有限公司 | Adhesive resin used for steel band reinforced polyethylene spiral corrugated pipe and preparation method thereof |
| CN102040931A (en) * | 2010-12-31 | 2011-05-04 | 上海邦中高分子材料有限公司 | Bonding resin for steel wire-wound reinforced polyethylene composite pipe |
| CN105086879A (en) * | 2015-09-09 | 2015-11-25 | 成都长江热缩材料有限公司 | Pipeline hot melt adhesive and preparation method thereof |
| CN108264866A (en) * | 2016-12-30 | 2018-07-10 | 上海邦中新材料有限公司 | A kind of steel wire winding enhances polyethylene compound pipe high strength bonding resin and its preparation method and application |
| CN109722189A (en) * | 2018-12-20 | 2019-05-07 | 上海邦中高分子材料股份有限公司 | A kind of hot melt adhesive and its preparation method and application for steel wire coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111500200A (en) * | 2020-06-03 | 2020-08-07 | 杭州凡泰塑业有限公司 | Method for bonding polyethylene plastic and steel wire |
| CN115612424A (en) * | 2022-12-21 | 2023-01-17 | 广州鹿山新材料股份有限公司 | High-temperature-resistant adhesive and preparation method and application thereof |
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Application publication date: 20200421 |