CN114163953A - High-adhesion-durability hot melt adhesive for steel wire mesh pipes and preparation method of hot melt adhesive - Google Patents
High-adhesion-durability hot melt adhesive for steel wire mesh pipes and preparation method of hot melt adhesive Download PDFInfo
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- CN114163953A CN114163953A CN202111662288.5A CN202111662288A CN114163953A CN 114163953 A CN114163953 A CN 114163953A CN 202111662288 A CN202111662288 A CN 202111662288A CN 114163953 A CN114163953 A CN 114163953A
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- China
- Prior art keywords
- hot melt
- melt adhesive
- wire mesh
- steel wire
- parts
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- 239000004831 Hot glue Substances 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 32
- 239000010959 steel Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 11
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 11
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 3
- 229920002635 polyurethane Polymers 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 239000002216 antistatic agent Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 239000012760 heat stabilizer Substances 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 description 13
- 239000004033 plastic Substances 0.000 description 13
- 239000002994 raw material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229920006258 high performance thermoplastic Polymers 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a high-adhesion durability steel wire mesh tube hot melt adhesive and a preparation method thereof, wherein the hot melt adhesive comprises the following components in parts by weight: 30-40 parts of high-density polyethylene, 40-60 parts of maleic anhydride modified high-density polyethylene, 1-10 parts of polyurethane and 1-3 parts of auxiliary agent. The hot melt adhesive provided by the invention has high initial bonding strength, shows good performance in a bonding durability test, and is used for a steel wire mesh pipe to ensure the long-term use stability of a pipeline.
Description
Technical Field
The invention relates to the technical field of hot melt adhesives, in particular to a high-adhesion-durability hot melt adhesive for a steel wire mesh pipe and a preparation method thereof.
Background
The steel wire mesh pipe integrates the advantages of steel and plastic, overcomes the defects of the steel and plastic, and has very wide application prospect in the fields of oil gas, electric power, chemical industry, water supply and drainage and the like. In the wire mesh pipe, an inner layer of plastic and an outer layer of plastic are connected with a wire mesh through hot melt adhesive, so that the steel and plastic materials are mutually interwoven to form a stable wire mesh pipe structure. Structurally, the contact surface between one steel wire and the plastic is disconnected with the contact surface between the other steel wire and the plastic, and the adhesive force between the hot melt adhesive and the steel wire is mainly provided by the shearing force between the hot melt adhesive and the steel wire. Therefore, the advantages and disadvantages of the composite effect of the steel wire mesh pipe are mainly reflected in the bonding stability of the steel wire mesh and the hot melt adhesive in the composite pipe.
The steel wire mesh pipe is characterized by strong bearing capacity, good corrosion resistance, excellent wear resistance, long service life and the like. The inner and outer plastic layers of the wire mesh pipe bear the load together with the steel wire mesh layer, and can restrict the creep deformation, shrinkage and expansion deformation of the plastic, and the bearing capacity of the plastic pipe is far greater than that of a plastic pipe with the same specification. The inner and outer layers are made of high-performance thermoplastic plastics, have extremely high chemical stability, are insoluble in most inorganic and organic solvents, and do not need to be subjected to anticorrosion treatment. The roughness of the plastic inner wall is far less than that of the steel pipe, so that the medium flow resistance is reduced, and the wear resistance is obviously improved. In the application process, the steel wire mesh pipe is required to ensure long service life, and the service life of the steel wire mesh pipe is required to reach 25-50 years under general conditions.
The most important thing for prolonging the service life of the wire mesh tube is to ensure that the hot melt adhesive of the wire mesh tube has high bonding durability, and the hot melt adhesive is required not to be bonded and fail and not to have bonding force reduced in the service life of the wire mesh tube.
Disclosure of Invention
The invention aims to provide a hot-melt adhesive for a steel wire mesh pipe with high bonding durability and a preparation method thereof, aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a high-adhesion durability hot-melt adhesive for steel wire mesh pipes, which comprises the following components in parts by weight:
further, the density of the high-density polyethylene is 0.940-0.960g/cm3The melt index was 0.5-6.0 g/10min (190 ℃, under the pressure of 2.16 kg), the molecular weight is between 80000-150000, and the tensile elastic modulus is not less than 800 MPa.
Further, the density of the maleic anhydride modified high-density polyethylene is 0.920-0.960g/cm3The melt index is 2.0-6.0 g/10min (190 ℃, under the pressure of 2.16 kg), and the grafting rate of the maleic anhydride is 2.0-3.0%.
Further, the auxiliary agent is one or a combination of more of an antioxidant, a coupling agent, an antistatic agent and a heat stabilizer.
The second aspect of the invention provides a preparation method of a wire mesh tube hot melt adhesive, which comprises the following steps:
weighing high-density polyethylene, maleic anhydride grafted polyethylene, polyurethane and an auxiliary agent in specified weight parts, adding into a high-speed mixing roll, and uniformly mixing;
and step two, adding the uniformly mixed materials into a double-screw extruder for extrusion, cooling the extruded material strips to room temperature through a circulating water tank, and feeding the extruded material strips into a granulator for granulation after air drying through a blower.
Further, the temperature range of each temperature zone of the double-screw extruder is 190-230 ℃.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the hot melt adhesive provided by the invention has high initial bonding strength, shows good performance in a bonding durability test, and is used for a steel wire mesh pipe to ensure the long-term use stability of a pipeline.
Detailed Description
The following specific examples further illustrate the invention but are not to be construed as limiting the invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
The embodiment provides a steel wire mesh pipe hot melt adhesive with high bonding durability, which comprises the following components in parts by weight:
in this example, the high density polyethylene had a density of 0.956g/cm3The melt index was 0.5g/10min (190 ℃ C., under 2.16kg pressure), the molecular weight was 90000 and the tensile modulus of elasticity was 1000 MPa. The density of the maleic anhydride grafted polyethylene is 0.948g/cm3The melt index was 6.0g/10min (190 ℃ C., 2.16kg pressure), wherein the graft ratio of maleic anhydride was 2.7%.
The hot melt adhesive prepared by adopting the materials mainly comprises the following steps: weighing the raw materials according to the proportion, uniformly mixing the raw materials by using a high-speed mixer, adding the mixture into a double-screw extruder for high-temperature banburying, and extruding and granulating.
Example 2
The embodiment provides a steel wire mesh pipe hot melt adhesive with high bonding durability, which comprises the following components in parts by weight:
in this example, the high density polyethylene had a density of 0.946g/cm3The melt index was 1.1g/10min (190 ℃ C., under 2.16kg pressure), the molecular weight was 120000, and the tensile modulus of elasticity was 1100 MPa. The density of the maleic anhydride grafted polyethylene is 0.935g/cm3The melt index was 4.0g/10min (190 ℃ C., 2.16kg pressure), wherein the graft ratio of maleic anhydride was 3.0%.
The hot melt adhesive prepared by adopting the materials mainly comprises the following steps: weighing the raw materials according to the proportion, uniformly mixing the raw materials by using a high-speed mixer, adding the mixture into a double-screw extruder for high-temperature banburying, and extruding and granulating.
Example 3
The embodiment provides a steel wire mesh pipe hot melt adhesive with high bonding durability, which comprises the following components in parts by weight:
in this example, the high density polyethylene had a density of 0.948g/cm3The melt index was 1.2g/10min (190 ℃ C., under 2.16kg pressure), the molecular weight was 80000, and the tensile elastic modulus was 900 MPa. The density of the maleic anhydride grafted polyethylene is 0.942g/cm3The melt index was 2.5.0g/10min (190 ℃ C., 2.16kg pressure), the grafting yield of maleic anhydride being 2.5%.
The hot melt adhesive prepared by adopting the materials mainly comprises the following steps: weighing the raw materials according to the proportion, uniformly mixing the raw materials by using a high-speed mixer, adding the mixture into a double-screw extruder for high-temperature banburying, and extruding and granulating.
Example 4
The hot melt adhesives of examples 1-3 were subjected to the following experiments:
1) the hot melt adhesive with the formula is subjected to peel strength and steel wire shear strength tests according to the requirements in the hot melt adhesive industry label HG/T5607, and is used for representing the initial adhesiveness of the hot melt adhesive, and the results are shown in Table 1;
2) the hot melt adhesives of the above formulations were subjected to a test for adhesion durability, the results of which are shown in table 1.
TABLE 1
| Test items | Example 1 | Example 2 | Example 3 |
| Peel strength, N/mm | 6.35 | 7.26 | 5.43 |
| Steel wire shear strength, MPa | 23 | 25 | 22 |
| Durability of adhesion, h | 780 | 2500 | 540 |
From the above table 1, it can be seen that the hot melt adhesive of the present invention, while ensuring a high initial adhesive strength, exhibits good performance in the test of adhesion durability, and particularly the adhesive durability of example 2 is superior.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (6)
1. The high-adhesion durability hot melt adhesive for the steel wire mesh pipes is characterized by comprising the following components in parts by weight:
2. the steel mesh tube hot melt adhesive as claimed in claim 1, which isCharacterized in that the density of the high-density polyethylene is 0.940-0.960g/cm3The melt index is 0.5-6.0 g/10min, the molecular weight is between 80000-150000, and the tensile elastic modulus is not less than 800 MPa.
3. The steel wire mesh tube hot melt adhesive as claimed in claim 1, wherein the maleic anhydride modified high density polyethylene has a density of 0.920-0.960g/cm3The melt index is 2.0-6.0 g/10min, wherein the grafting rate of the maleic anhydride is 2.0-3.0%.
4. The steel wire mesh tube hot melt adhesive as claimed in claim 1, wherein the auxiliary agent is one or more of an antioxidant, a coupling agent, an antistatic agent and a heat stabilizer.
5. The preparation method of the wire mesh tube hot melt adhesive according to any one of claims 1 to 4, which is characterized by comprising the following steps:
weighing high-density polyethylene, maleic anhydride grafted polyethylene, polyurethane and an auxiliary agent in specified weight parts, adding into a high-speed mixing roll, and uniformly mixing;
and step two, adding the uniformly mixed materials into a double-screw extruder for extrusion, cooling the extruded material strips to room temperature through a circulating water tank, and feeding the extruded material strips into a granulator for granulation after air drying through a blower.
6. The preparation method according to claim 5, wherein the temperature range of each temperature zone of the twin-screw extruder is 190 ℃ and 230 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662288.5A CN114163953A (en) | 2021-12-30 | 2021-12-30 | High-adhesion-durability hot melt adhesive for steel wire mesh pipes and preparation method of hot melt adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111662288.5A CN114163953A (en) | 2021-12-30 | 2021-12-30 | High-adhesion-durability hot melt adhesive for steel wire mesh pipes and preparation method of hot melt adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114163953A true CN114163953A (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111662288.5A Pending CN114163953A (en) | 2021-12-30 | 2021-12-30 | High-adhesion-durability hot melt adhesive for steel wire mesh pipes and preparation method of hot melt adhesive |
Country Status (1)
| Country | Link |
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| CN (1) | CN114163953A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746912A (en) * | 2019-10-18 | 2020-02-04 | 广东东方管业有限公司 | Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe |
| US20200216651A1 (en) * | 2019-01-03 | 2020-07-09 | Nan Ya Plastics Corporation | Lightweight, high-toughness, high-rigidity polypropylene composition and manufacturing method thereof |
| CN112812716A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中高分子材料股份有限公司 | Weather-resistant bonding resin for plastic-lined steel pipe and preparation method thereof |
| CN113025244A (en) * | 2020-12-25 | 2021-06-25 | 上海邦中新材料有限公司 | Adhesive resin for metal base material and preparation method thereof |
-
2021
- 2021-12-30 CN CN202111662288.5A patent/CN114163953A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200216651A1 (en) * | 2019-01-03 | 2020-07-09 | Nan Ya Plastics Corporation | Lightweight, high-toughness, high-rigidity polypropylene composition and manufacturing method thereof |
| CN110746912A (en) * | 2019-10-18 | 2020-02-04 | 广东东方管业有限公司 | Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe |
| CN112812716A (en) * | 2020-12-25 | 2021-05-18 | 上海邦中高分子材料股份有限公司 | Weather-resistant bonding resin for plastic-lined steel pipe and preparation method thereof |
| CN113025244A (en) * | 2020-12-25 | 2021-06-25 | 上海邦中新材料有限公司 | Adhesive resin for metal base material and preparation method thereof |
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Application publication date: 20220311 |