CN110746912A - Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe - Google Patents
Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe Download PDFInfo
- Publication number
- CN110746912A CN110746912A CN201910993723.9A CN201910993723A CN110746912A CN 110746912 A CN110746912 A CN 110746912A CN 201910993723 A CN201910993723 A CN 201910993723A CN 110746912 A CN110746912 A CN 110746912A
- Authority
- CN
- China
- Prior art keywords
- maleimide
- polyethylene
- hot melt
- melt adhesive
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- 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
Abstract
The invention relates to a hot melt adhesive for bonding polyethylene and steel wires, a preparation method and a pipe, wherein the hot melt adhesive comprises the following components in parts by weight: 100 parts by weight of a graft resin, the graft resin is obtained by grafting polyethylene with maleic anhydride and maleimide, the maleimide is at least one of N-alkyl maleimide and N-substituted alkyl maleimide, and the mass ratio of the maleic anhydride, the maleimide and the polyethylene is (0.5-2): (0.05 to 0.3): 100, respectively; 0 to 30 parts by weight of an ethylene- (meth) acrylate copolymer; 0 to 15 parts by weight of an elastomer; 0 to 5 parts by weight of an auxiliary. The hot melt adhesive has good adhesive property and processability.
Description
Technical Field
The invention relates to the technical field of materials for pipes, in particular to a hot melt adhesive for adhering polyethylene and steel wires, a preparation method and a pipe.
Background
China is a big coal producing country, various conveying pipelines are required for coal mine production, and the coal mine production is divided into four categories of gas drainage, water supply and drainage, air supply, slurry spraying and the like according to the application. Steel and wood used in mines are being gradually replaced by plastics. Compared with steel, the plastic pipe has the advantages of acid resistance, alkali resistance, oil resistance, corrosion resistance, light weight, low cost, long service life and the like, but the mechanical property of the pipe made of the plastic alone is poor. In order to improve the mechanical property of the plastic pipe, several steel skeleton plastic composite pipes are developed in sequence: the steel plate reinforced plastic composite pipe, the punched steel belt skeleton composite pipe, the steel wire mesh node wound skeleton composite pipe and the steel wire wound reinforced polyethylene composite pipe are sequentially arranged in the steel plate reinforced plastic composite pipe, the punched steel belt skeleton composite pipe, the steel wire mesh node wound skeleton composite pipe and the steel wire wound reinforced polyethylene composite pipe, wherein the steel wire wound reinforced polyethylene composite pipe is high in tensile strength and excellent in toughness and crack resistance. For example, chinese utility model patent CN204387508U discloses a compound pipe of winding steel wire mesh skeleton plastics of multilayer steel wire winding is provided with the crisscross winding of 2 layers of winding steel wire latticed reinforcing structure layer that forms including the centre of outer tube, bonds through hot melt adhesive layer between winding steel wire latticed reinforcing structure layer and inner tube, the outer tube for fuse together between high strength steel wire and the interior outer layer plastics, thereby obtain the compound tubular product of high strength. The inner and outer layer plastics of the steel wire winding reinforced polyethylene composite pipe usually adopt high-density polyethylene as a base material.
At present, the hot melt adhesive used for bonding the steel wire mesh winding framework and the high-density polyethylene plastic layer usually adopts maleic anhydride grafted polyethylene as a main material. However, maleic anhydride grafted polyethylene needs a high grafting ratio to obtain an ideal bonding performance, and too high maleic anhydride grafting ratio can result in too high cross-linking density of the hot melt adhesive, reduced toughness of the pipe hot melt adhesive layer, and reduced fluidity of the hot melt adhesive, which affects the processing and forming of the hot melt adhesive layer.
Disclosure of Invention
In view of the deficiencies of the prior art, a first object of the present invention is to provide a hot melt adhesive for bonding polyethylene to steel wire, which is excellent in adhesion and processability.
The second purpose of the invention is to provide a preparation method of hot melt adhesive for bonding polyethylene and steel wires, which has excellent bonding performance and processability.
The third purpose of the invention is to provide a pipe material which uses hot melt adhesive with excellent bonding performance and processing performance to bond a polyethylene plastic layer and a steel wire framework.
In order to achieve the first object of the invention, the invention provides a hot melt adhesive for bonding polyethylene and steel wires, which comprises the following components in parts by weight: 100 parts by weight of a graft resin, the graft resin is obtained by grafting polyethylene with maleic anhydride and maleimide, the maleimide is at least one of N-alkyl maleimide and N-substituted alkyl maleimide, and the mass ratio of the maleic anhydride, the maleimide and the polyethylene is (0.5-2): (0.05 to 0.3): 100, respectively; 0 to 30 parts by weight of an ethylene- (meth) acrylate copolymer; 0 to 15 parts by weight of an elastomer; 0 to 5 parts by weight of an auxiliary.
Therefore, the invention grafts the polyethylene by using a small amount of maleimide and maleic anhydride together, wherein the nitrogen atom in the maleimide is connected with alkyl or substituted alkyl, the electron cloud density of lone pair electrons on the nitrogen atom is higher, and the maleimide can be complexed with metal to improve the adhesiveness to steel wires. And the maleimide is beneficial to improving the bonding activity of the maleic anhydride, thereby reducing the using amount of the maleic anhydride and reducing the grafting rate of the grafted resin. Therefore, the invention can improve the processing performance of the hot melt adhesive while improving the bonding performance of the hot melt adhesive. In addition, the invention can further add ethylene- (methyl) acrylate copolymer, elastomer and/or auxiliary agent according to the actual need, wherein the ethylene- (methyl) acrylate copolymer contains a large amount of ester groups, has better cohesiveness to steel wires, the elastomer can further improve the toughness of the hot melt adhesive, and the auxiliary agent can improve the processing performance or the aging resistance and the like of the hot melt adhesive.
The further technical scheme is that the polyethylene is prepared from high-density polyethylene, medium-density polyethylene and low-density polyethylene according to the mass ratio of 1: (0.5 to 1.5): (0.5 to 1.5) mixing; the high density polyethylene has a density of 0.941 to 0.970g/cm3The density of the medium density polyethylene is 0.929 to 0.940g/cm3The density of the low density polyethylene is 0.917 to 0.928g/cm3。
Therefore, the polyethylene matrix in the grafted resin of the invention is preferably formed by mixing three polyethylenes with different densities, the three polyethylenes have different relative molecular weights, wherein the high density polyethylene can endow the grafted resin with higher mechanical strength, the low density polyethylene can endow the grafted resin with better fluidity, and the medium density polyethylene has a molecular weight between the high density polyethylene and the low density polyethylene, so that the compatibility of the high density polyethylene and the low density polyethylene can be improved, and the mechanical property and the processability of the hot melt adhesive can be further improved.
The further technical proposal is that the N-alkyl maleimide is at least one of N-methyl maleimide, N-ethyl maleimide, N-propyl maleimide and N-cyclohexyl maleimide; the N-substituted alkylmaleimide is at least one of N-methylmaleimide, N-ethylmaleimide, N-propylmaleimide and N-cyclohexylmaleimide, in which at least one hydrogen atom of the alkyl group bonded to the N atom is substituted with a hydroxyl group, a carboxyl group, an ester group, an ether-containing group or a halogen atom.
Therefore, the N-alkyl maleimide or the N-substituted alkyl maleimide can be selected according to actual needs, and the alkyl and the substituted alkyl belong to electron-donating groups, so that the electron cloud density of nitrogen atoms can be improved. Meanwhile, the alkyl group has good compatibility with polyethylene, and when the alkyl group is substituted by hydroxyl, carboxyl, ester group, ether-containing group and halogen atom, the polar groups can further improve the adhesion of the hot melt adhesive and the steel wire.
The further technical proposal is that the ethylene- (methyl) acrylate copolymer is at least one of ethylene- (methyl) acrylate copolymer, ethylene- (methyl) ethyl acrylate copolymer and ethylene- (methyl) butyl acrylate copolymer.
As can be seen from the above, the ethylene- (meth) acrylate copolymer of the present invention may be selected as desired, and the ethylene- (meth) acrylate copolymer refers to an ethylene-acrylate copolymer, an ethylene-methacrylate copolymer, or a mixture of both.
The further technical scheme is that the elastomer is at least one of polyurethane, chlorinated polyethylene, natural rubber, nitrile rubber, ethylene propylene rubber and silicon rubber.
Therefore, the invention can select proper elastomer according to the requirement, the elastomer can be thermoplastic or thermosetting elastomer, preferably ethylene propylene rubber, the ethylene propylene rubber contains ethylene group, and the compatibility with grafted polyethylene is better.
The further technical scheme is that the auxiliary agent is at least one of a plasticizer, an antioxidant, a heat stabilizer, a dispersing agent and a lubricant.
Therefore, according to the invention, a proper auxiliary agent can be selected according to the needs, wherein the plasticizer can improve the fluidity of the hot melt adhesive, the antioxidant can improve the antioxidant aging performance of the hot melt adhesive, the dispersant can improve the dispersion uniformity of each component, and the lubricant can improve the processing performance of the hot melt adhesive.
The further technical proposal is that the ethylene- (methyl) acrylate copolymer accounts for 5 to 30 weight portions; the elastomer is 5 to 15 parts by weight.
As can be seen from the above, the hot melt adhesive of the present invention preferably contains a certain amount of ethylene- (meth) acrylate copolymer and elastomer to further improve the adhesive properties, toughness, etc. of the hot melt adhesive.
In order to achieve the second object of the present invention, the present invention provides a method for preparing a hot melt adhesive for bonding polyethylene and steel wires, comprising the steps of: the method comprises the following steps: weighing the following components in parts by weight: 100 parts by weight of a graft resin, the graft resin is obtained by grafting polyethylene with maleic anhydride and maleimide, the maleimide is at least one of N-alkyl maleimide and N-substituted alkyl maleimide, and the mass ratio of the maleic anhydride, the maleimide and the polyethylene is (0.5-2): (0.05 to 0.3): 100, respectively; 0 to 30 parts by weight of an ethylene- (meth) acrylate copolymer; 0 to 15 parts by weight of an elastomer; 0 to 5 parts by weight of an auxiliary agent; step two: and when the dosage of any one of the ethylene- (methyl) acrylate copolymer, the elastomer and the auxiliary agent is not 0, uniformly dispersing the components weighed in the step one.
Therefore, the invention provides the preparation method of the hot melt adhesive, and the preparation method is simple. When the hot melt adhesive only contains the grafted resin, the grafted resin can be directly weighed to be used as the hot melt adhesive. When multiple components are adopted, the components are uniformly mixed, and the mixture can be applied to preparing a hot melt adhesive layer of the pipe.
The further technical scheme is that before the first step, the mass ratio of the initiator, the maleic anhydride, the maleimide and the polyethylene is (0.05-0.3): (0.5 to 2): (0.05 to 0.3): 100, weighing an initiator, maleic anhydride, maleimide and polyethylene, uniformly mixing the initiator, the maleic anhydride, the maleimide and the polyethylene, and then carrying out melt extrusion granulation to obtain a grafted resin; the initiator is at least one of dicumyl peroxide, benzoyl peroxide, azobisisobutyronitrile and 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane.
In view of the above, the present invention further provides a method for preparing a grafted resin, wherein maleic anhydride and maleimide are grafted onto a polyethylene molecular chain by melt extrusion under the action of an initiator. The preparation method is simple and easy to operate.
The further technical scheme is that the polyethylene is prepared from high-density polyethylene, medium-density polyethylene and low-density polyethylene according to the mass ratio of 1: (0.5 to 1.5): (0.5 to 1.5) mixing; the high density polyethylene has a density of 0.941 to 0.970g/cm3The medium density polyethylene has a density of 0.929 to 0.940g/cm3The low density polyethylene has a density of 0.917 to 0.928g/cm3。
The further technical proposal is that the N-alkyl maleimide is at least one of N-methyl maleimide, N-ethyl maleimide, N-propyl maleimide and N-cyclohexyl maleimide; the N-substituted alkyl maleimide is at least one of N-methyl maleimide, N-ethyl maleimide, N-propyl maleimide and N-cyclohexyl maleimide, wherein at least one hydrogen atom of the alkyl group connected with the N atom is substituted by hydroxyl, carboxyl, ester group, ether-containing group or halogen atom.
The further technical proposal is that the ethylene- (methyl) acrylate copolymer is at least one of ethylene- (methyl) acrylate copolymer, ethylene- (methyl) ethyl acrylate copolymer and ethylene- (methyl) butyl acrylate copolymer.
The further technical scheme is that the elastomer is at least one of polyurethane, chlorinated polyethylene, natural rubber, nitrile rubber, ethylene propylene rubber and silicon rubber.
The further technical scheme is that the auxiliary agent is at least one of a plasticizer, an antioxidant, a heat stabilizer, a dispersing agent and a lubricant.
The further technical proposal is that the ethylene- (methyl) acrylate copolymer accounts for 5 to 30 weight portions; 5 to 15 parts by weight of an elastomer; the second step comprises the following steps: and (3) uniformly mixing the components weighed in the step one, and then extruding and granulating.
From the above, when a plurality of components are used, it is preferable that each component is uniformly mixed by melt extrusion and granulation is convenient for subsequent weighing.
In order to realize the third purpose of the invention, the invention provides a pipe which comprises an inner layer pipe and an outer layer pipe, wherein a winding steel wire mesh framework is arranged between the inner layer pipe and the outer layer pipe, and the inner layer pipe and the outer layer pipe are respectively bonded with the winding steel wire mesh framework through hot melt adhesives; the winding steel wire mesh framework comprises one or more layers of winding steel wire meshes; when the winding steel wire mesh framework comprises a plurality of layers of winding steel wire meshes, the adjacent winding steel wire meshes are bonded through hot melt adhesive; the hot melt adhesive is the hot melt adhesive in any one of the schemes; or the hot melt adhesive is prepared by the preparation method of any scheme and used for bonding the polyethylene and the steel wire.
Therefore, the invention provides the pipe for bonding the polyethylene plastic layer and the winding steel wire mesh framework by using the hot melt adhesive, the polyethylene plastic layer and the winding steel wire mesh framework in the pipe have higher bonding strength, the hot melt adhesive layer has better toughness, and the hot melt adhesive layer has good forming and processing performance.
Drawings
FIG. 1 is a schematic structural view of example 1 of a pipe of the present invention.
Figure 2 is a schematic structural view of a pipe embodiment 2 of the invention.
Detailed Description
Hot melt adhesive example 1
The hot melt adhesive of the present example was prepared by the following steps:
(1) high Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE) and Low Density Polyethylene (LDPE) were blended according to a ratio of 1: 1: 1 to obtain polyethylene; according to dicumyl peroxide: maleic anhydride: n-ethylmaleimide: the mass ratio of polyethylene is 0.05: 0.5: 0.05: 100, weighing the raw materials, uniformly mixing the raw materials, and performing melt extrusion granulation to obtain the graft resin.
(2) Weighing the components according to 100 parts by weight of grafted resin, 20 parts by weight of ethylene-ethyl acrylate and 10 parts by weight of ethylene propylene rubber, uniformly mixing the components, and performing melt extrusion granulation to obtain the hot melt adhesive.
Hot melt adhesive example 2
The hot melt adhesive of the present example was prepared by the following steps:
(1) high Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE) and Low Density Polyethylene (LDPE) were blended according to a ratio of 1: 0.5: mixing the components in a mass ratio of 0.5 to obtain polyethylene; according to the weight ratio of benzoyl peroxide: maleic anhydride: n-butylmaleimide: the mass ratio of polyethylene is 0.2: 1.5: 0.2: 100, weighing the raw materials, uniformly mixing the raw materials, and performing melt extrusion granulation to obtain the graft resin.
(2) Weighing the components according to 100 parts by weight of the grafted resin, 5 parts by weight of the ethylene-butyl acrylate and 5 parts by weight of the silicon rubber, uniformly mixing the components, and performing melt extrusion granulation to obtain the hot melt adhesive.
Hot melt adhesive example 3
The hot melt adhesive of the present example was prepared by the following steps:
(1) high Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE) and Low Density Polyethylene (LDPE) were blended according to a ratio of 1: 1.5: 1.5 to obtain polyethylene; according to dicumyl peroxide: maleic anhydride: n-hydroxyethyl maleimide: the mass ratio of polyethylene is 0.3: 2: 0.3: 100, weighing the raw materials, uniformly mixing the raw materials, and performing melt extrusion granulation to obtain the graft resin.
(2) Weighing the components according to 100 parts by weight of grafted resin, 30 parts by weight of ethylene-butyl acrylate and 15 parts by weight of silicon rubber, uniformly mixing the components, and performing melt extrusion granulation to obtain the hot melt adhesive.
Hot melt adhesive example 4
The hot melt adhesive of the present example was prepared by the following steps:
high Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE) and Low Density Polyethylene (LDPE) were blended according to a ratio of 1: 1: 1 to obtain polyethylene; according to dicumyl peroxide: maleic anhydride: n-ethylmaleimide: the mass ratio of polyethylene is 0.2: 2: 0.3: 100, weighing raw materials, uniformly mixing the raw materials, and performing melt extrusion granulation to obtain grafted resin, wherein the grafted resin forms the hot melt adhesive.
Comparative hot melt adhesive example 1
The hot melt adhesive of this comparative example was prepared by the following steps:
high Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE) and Low Density Polyethylene (LDPE) were blended according to a ratio of 1: 1: 1 to obtain polyethylene; according to dicumyl peroxide: maleic anhydride: the mass ratio of polyethylene is 0.3: 3: 100, weighing raw materials, uniformly mixing the raw materials, and performing melt extrusion granulation to obtain grafted resin, wherein the grafted resin forms the hot melt adhesive.
Comparative hot melt adhesive example 2
The hot melt adhesive of this comparative example was prepared by the following steps:
high Density Polyethylene (HDPE), Medium Density Polyethylene (MDPE) and Low Density Polyethylene (LDPE) were blended according to a ratio of 1: 1: 1 to obtain polyethylene; according to dicumyl peroxide: maleic anhydride: n-ethylmaleimide: the mass ratio of polyethylene is 0.05: 0.2: 0.05: 100, weighing raw materials, uniformly mixing the raw materials, and performing melt extrusion granulation to obtain grafted resin, wherein the grafted resin forms the hot melt adhesive.
Comparative hot melt adhesive example 3
The hot melt adhesive of this comparative example was prepared by the following steps:
high Density Polyethylene (HDPE) and Low Density Polyethylene (LDPE) were blended according to a ratio of 1: 1 to obtain polyethylene; according to dicumyl peroxide: maleic anhydride: n-ethylmaleimide: the mass ratio of polyethylene is 0.2: 2: 0.3: 100, weighing raw materials, uniformly mixing the raw materials, and performing melt extrusion granulation to obtain grafted resin, wherein the grafted resin forms the hot melt adhesive.
The above examples and comparative examples the properties of the components of the hot melt adhesive prepared are shown in tables 1 to below. Wherein the melt flow rate is measured according to ASTM D1238 Standard test method (2.16kg, 190 ℃), the tensile strength and elongation at break are measured according to ASTM D638 Standard test method, and the Peel Strength is the Peel Strength to Steel measured according to GB/T2791 test method.
TABLE 1 Components and Properties of the Hot melt adhesive examples and comparative examples
Therefore, the hot melt adhesive disclosed by the invention has the advantages of good adhesive property, mechanical property, processability and excellent comprehensive performance. It can be seen from the comparison of the examples and comparative example 1 that the use of a small amount of maleimide and maleic anhydride for grafting polyethylene can reduce the amount of maleic anhydride, improve the peel strength of the hot melt adhesive to steel, improve the melt flow rate, and improve the mechanical properties of the hot melt adhesive. It can be seen from the comparison of the examples and comparative example 3 that the dispersibility of polyethylene can be improved by adding medium density polyethylene into polyethylene, and the adhesive property and mechanical property of the hot melt adhesive can be further improved.
The hot melt adhesives of the present invention can be used to make the tubing in the following examples.
Pipe material example 1
As shown in fig. 1, the pipe of this embodiment includes an inner pipe 11 and an outer pipe 12, a steel wire mesh winding framework 13 is disposed between the inner pipe 11 and the outer pipe 12, and the inner pipe 11 and the outer pipe 12 are respectively bonded to the steel wire mesh winding framework 13 through a hot melt adhesive 14. The wound steel wire mesh framework 13 comprises a layer of wound steel wire mesh which is formed by winding steel wires in a staggered mode. Wherein the layer of hot melt 14 is formed from the hot melt adhesive of the present invention.
Pipe material example 2
As shown in fig. 2, the pipe material of the present embodiment includes an inner layer pipe 21 and an outer layer pipe 22, a steel wire mesh winding framework 23 is disposed between the inner layer pipe 21 and the outer layer pipe 22, and the inner layer pipe 21 and the outer layer pipe 22 are respectively bonded to the steel wire mesh winding framework 23 through a hot melt adhesive 24. The winding steel wire mesh framework 23 comprises two layers of winding steel wire meshes, and adjacent winding steel wire meshes are bonded through hot melt adhesives 24. Wherein the layer of hot melt adhesive 24 is formed from the hot melt adhesive of the present invention.
Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the invention, which is not intended to limit the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The hot melt adhesive for bonding the polyethylene and the steel wire is characterized by comprising the following components in parts by weight:
100 parts by weight of a graft resin obtained by grafting polyethylene with maleic anhydride and maleimide, wherein the maleimide is at least one of N-alkyl maleimide and N-substituted alkyl maleimide, and the mass ratio of the maleic anhydride, the maleimide and the polyethylene is (0.5-2): (0.05 to 0.3): 100, respectively;
0 to 30 parts by weight of an ethylene- (meth) acrylate copolymer;
0 to 15 parts by weight of an elastomer;
0 to 5 parts by weight of an auxiliary.
2. The hot melt adhesive for bonding polyethylene and steel wires according to claim 1, wherein:
the polyethylene is prepared from high-density polyethylene, medium-density polyethylene and low-density polyethylene according to the mass ratio of 1: (0.5 to 1.5): (0.5 to 1.5) mixing;
the density of the high-density polyethylene is 0.941 to 0.970g/cm3The density of the medium density polyethylene is 0.929 to 0.940g/cm3The density of the low density polyethylene is 0.917 to 0.928g/cm3。
3. The hot melt adhesive for bonding polyethylene and steel wires according to claim 1, wherein:
the N-alkyl maleimide is at least one of N-methyl maleimide, N-ethyl maleimide, N-propyl maleimide and N-cyclohexyl maleimide; the N-substituted alkyl maleimide is at least one of N-methyl maleimide, N-ethyl maleimide, N-propyl maleimide and N-cyclohexyl maleimide, wherein at least one hydrogen atom on the alkyl connected with the N atom is substituted by hydroxyl, carboxyl, ester group, ether-containing group or halogen atom;
the ethylene- (methyl) acrylate copolymer is at least one of ethylene- (methyl) acrylate copolymer, ethylene- (methyl) ethyl acrylate copolymer and ethylene- (methyl) butyl acrylate copolymer;
the elastomer is at least one of polyurethane, chlorinated polyethylene, natural rubber, nitrile rubber, ethylene propylene rubber and silicon rubber;
the auxiliary agent is at least one of a plasticizer, an antioxidant, a heat stabilizer, a dispersant and a lubricant.
4. A hot melt adhesive for bonding polyethylene to steel wires according to any one of claims 1 to 3, characterized in that:
5 to 30 parts by weight of an ethylene- (meth) acrylate copolymer;
the elastomer is 5 to 15 parts by weight.
5. The preparation method of the hot melt adhesive for bonding the polyethylene and the steel wire is characterized by comprising the following steps of:
the method comprises the following steps: weighing the following components in parts by weight:
100 parts by weight of a graft resin obtained by grafting polyethylene with maleic anhydride and maleimide, wherein the maleimide is at least one of N-alkyl maleimide and N-substituted alkyl maleimide, and the mass ratio of the maleic anhydride, the maleimide and the polyethylene is (0.5-2): (0.05 to 0.3): 100, respectively;
0 to 30 parts by weight of an ethylene- (meth) acrylate copolymer;
0 to 15 parts by weight of an elastomer;
0 to 5 parts by weight of an auxiliary agent;
step two: and when the dosage of any one of the ethylene- (methyl) acrylate copolymer, the elastomer and the auxiliary agent is not 0, uniformly dispersing the components weighed in the step one.
6. The method of claim 5, wherein:
before the first step, according to the mass ratio of the initiator, the maleic anhydride, the maleimide and the polyethylene being (0.05 to 0.3): (0.5 to 2): (0.05 to 0.3): 100, weighing the initiator, the maleic anhydride, the maleimide and the polyethylene, uniformly mixing the initiator, the maleic anhydride, the maleimide and the polyethylene, and then carrying out melt extrusion granulation to obtain the grafted resin;
the initiator is at least one of dicumyl peroxide, benzoyl peroxide, azobisisobutyronitrile and 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane.
7. The production method according to claim 5 or 6, characterized in that:
the polyethylene is prepared from high-density polyethylene, medium-density polyethylene and low-density polyethylene according to the mass ratio of 1: (0.5 to 1.5): (0.5 to 1.5) mixing;
the density of the high-density polyethylene is 0.941 to 0.970g/cm3The density of the medium density polyethylene is 0.929 to 0.940g/cm3The density of the low density polyethylene is 0.917 to 0.928g/cm3。
8. The production method according to claim 5 or 6, characterized in that:
the N-alkyl maleimide is at least one of N-methyl maleimide, N-ethyl maleimide, N-propyl maleimide and N-cyclohexyl maleimide; the N-substituted alkyl maleimide is at least one of N-methyl maleimide, N-ethyl maleimide, N-propyl maleimide and N-cyclohexyl maleimide, wherein at least one hydrogen atom on the alkyl connected with the N atom is substituted by hydroxyl, carboxyl, ester group, ether-containing group or halogen atom;
the ethylene- (methyl) acrylate copolymer is at least one of ethylene- (methyl) acrylate copolymer, ethylene- (methyl) ethyl acrylate copolymer and ethylene- (methyl) butyl acrylate copolymer;
the elastomer is at least one of polyurethane, chlorinated polyethylene, natural rubber, nitrile rubber, ethylene propylene rubber and silicon rubber;
the auxiliary agent is at least one of a plasticizer, an antioxidant, a heat stabilizer, a dispersant and a lubricant.
9. The production method according to claim 5 or 6, characterized in that:
5 to 30 parts by weight of an ethylene- (meth) acrylate copolymer;
the elastomer is 5 to 15 parts by weight;
and step two, uniformly mixing the components weighed in the step one, and then extruding and granulating.
10. The pipe comprises an inner layer pipe and an outer layer pipe, wherein a wound steel wire mesh framework is arranged between the inner layer pipe and the outer layer pipe, and the inner layer pipe and the outer layer pipe are respectively bonded with the wound steel wire mesh framework through hot melt adhesives; the winding steel wire mesh framework comprises one or more layers of winding steel wire meshes; when the wound steel wire mesh framework comprises a plurality of layers of wound steel wire meshes, adjacent wound steel wire meshes are bonded through the hot melt adhesive; the method is characterized in that:
the hot melt adhesive is the hot melt adhesive for bonding the polyethylene and the steel wire according to any one of claims 1 to 4; or, the hot melt adhesive is prepared by the preparation method of any one of claims 5 to 9 and is used for bonding polyethylene and steel wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993723.9A CN110746912B (en) | 2019-10-18 | 2019-10-18 | Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993723.9A CN110746912B (en) | 2019-10-18 | 2019-10-18 | Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110746912A true CN110746912A (en) | 2020-02-04 |
| CN110746912B CN110746912B (en) | 2021-04-09 |
Family
ID=69278906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910993723.9A Active CN110746912B (en) | 2019-10-18 | 2019-10-18 | Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110746912B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521684A (en) * | 2020-11-16 | 2021-03-19 | 佛山市南方包装有限公司 | High-temperature-cooking-resistant low-temperature-toughness polyolefin plastic and preparation method and application thereof |
| CN112728228A (en) * | 2020-12-24 | 2021-04-30 | 四川兰晨管业有限公司 | Steel wire mesh framework plastic composite pipe and preparation method thereof |
| CN113278392A (en) * | 2021-05-17 | 2021-08-20 | 山东东宏管业股份有限公司 | Steel wire pipe bonding resin and preparation method and application thereof |
| CN114163953A (en) * | 2021-12-30 | 2022-03-11 | 上海邦中新材料有限公司 | High-adhesion-durability hot melt adhesive for steel wire mesh pipes and preparation method of hot melt adhesive |
| CN116445111A (en) * | 2023-03-22 | 2023-07-18 | 深圳市东升塑胶制品有限公司 | Hot melt adhesive and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04288383A (en) * | 1991-03-15 | 1992-10-13 | Mitsui Petrochem Ind Ltd | Adhesive resin composition excellent in transparency |
| CN1143102A (en) * | 1995-05-09 | 1997-02-19 | 埃勒夫阿托化学有限公司 | Co-extruding adhesive using graft polyolefine as main component |
| JP2003026742A (en) * | 2001-07-16 | 2003-01-29 | Nippon A & L Kk | Method for manufacturing graft copolymer latex |
| CN101466809A (en) * | 2006-06-15 | 2009-06-24 | 陶氏环球技术公司 | Functionalized olefin interpolymers, compositions and articles prepared therefrom, and methods for making the same |
| CN102786632A (en) * | 2012-07-17 | 2012-11-21 | 山东东宏管业有限公司 | Adhesion resin used for steel mesh skeleton polyethylene composite pipe |
| WO2015048575A1 (en) * | 2013-09-26 | 2015-04-02 | Designer Molecules, Inc. | Low dielectric constant, low dielectric dissipation factor coatings, films and adhesives |
| CN107011837A (en) * | 2017-04-27 | 2017-08-04 | 安徽国登管业科技有限公司 | Composited aluminum and plastic decking adhesive resin composition and preparation method thereof |
| CN110079255A (en) * | 2013-09-25 | 2019-08-02 | 波士胶公司 | The hot-melt adhesive of polyolefin with functionalized metallocene catalyst |
-
2019
- 2019-10-18 CN CN201910993723.9A patent/CN110746912B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04288383A (en) * | 1991-03-15 | 1992-10-13 | Mitsui Petrochem Ind Ltd | Adhesive resin composition excellent in transparency |
| CN1143102A (en) * | 1995-05-09 | 1997-02-19 | 埃勒夫阿托化学有限公司 | Co-extruding adhesive using graft polyolefine as main component |
| JP2003026742A (en) * | 2001-07-16 | 2003-01-29 | Nippon A & L Kk | Method for manufacturing graft copolymer latex |
| CN101466809A (en) * | 2006-06-15 | 2009-06-24 | 陶氏环球技术公司 | Functionalized olefin interpolymers, compositions and articles prepared therefrom, and methods for making the same |
| CN102786632A (en) * | 2012-07-17 | 2012-11-21 | 山东东宏管业有限公司 | Adhesion resin used for steel mesh skeleton polyethylene composite pipe |
| CN110079255A (en) * | 2013-09-25 | 2019-08-02 | 波士胶公司 | The hot-melt adhesive of polyolefin with functionalized metallocene catalyst |
| WO2015048575A1 (en) * | 2013-09-26 | 2015-04-02 | Designer Molecules, Inc. | Low dielectric constant, low dielectric dissipation factor coatings, films and adhesives |
| CN107011837A (en) * | 2017-04-27 | 2017-08-04 | 安徽国登管业科技有限公司 | Composited aluminum and plastic decking adhesive resin composition and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521684A (en) * | 2020-11-16 | 2021-03-19 | 佛山市南方包装有限公司 | High-temperature-cooking-resistant low-temperature-toughness polyolefin plastic and preparation method and application thereof |
| CN112521684B (en) * | 2020-11-16 | 2023-01-03 | 佛山市南方包装有限公司 | High-temperature-cooking-resistant low-temperature-toughness polyolefin plastic and preparation method and application thereof |
| CN112728228A (en) * | 2020-12-24 | 2021-04-30 | 四川兰晨管业有限公司 | Steel wire mesh framework plastic composite pipe and preparation method thereof |
| CN113278392A (en) * | 2021-05-17 | 2021-08-20 | 山东东宏管业股份有限公司 | Steel wire pipe bonding resin and preparation method and application thereof |
| CN114163953A (en) * | 2021-12-30 | 2022-03-11 | 上海邦中新材料有限公司 | High-adhesion-durability hot melt adhesive for steel wire mesh pipes and preparation method of hot melt adhesive |
| CN116445111A (en) * | 2023-03-22 | 2023-07-18 | 深圳市东升塑胶制品有限公司 | Hot melt adhesive and preparation method thereof |
| CN116445111B (en) * | 2023-03-22 | 2024-02-27 | 深圳市东升塑胶制品有限公司 | Hot melt adhesive and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110746912B (en) | 2021-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110746912B (en) | Hot melt adhesive for bonding polyethylene and steel wire, preparation method and pipe | |
| CN112096973B (en) | Steel wire mesh framework reinforced polypropylene composite pipe and preparation method and application thereof | |
| CN108047998B (en) | EVA hot melt adhesive for bonding UHMWPE (ultrahigh molecular weight polyethylene) products and preparation method thereof | |
| CN102086357B (en) | Adhesive resin used for steel band reinforced polyethylene spiral corrugated pipe and preparation method thereof | |
| CN101423733B (en) | Method for preparing transparent hot melt adhesive for PP-R plastic-aluminum steady state tube | |
| CN103232825A (en) | Elastomer-based hot-melt adhesive and preparation method thereof | |
| CN102533162A (en) | Preparation method of poly ethylene (PE) hot melt glue powder for 3PE anti-corrosion pipelines | |
| CN111004594A (en) | Adhesive resin for polyester fiber reinforced PE (polyethylene) composite pipe and preparation method thereof | |
| CN103059785A (en) | Heat resistant type transparent polyolefin hot melt adhesive and preparing method thereof | |
| CN105713541A (en) | Propenyl hot-melt adhesive composition and preparation method thereof | |
| CN104388013A (en) | Adhesive resin with high resistance to water soaking, and preparation method and application thereof | |
| CN103205228A (en) | Preparation method of hot-melt adhesive for multilayer oxygen-resistance pipe | |
| CN112728228A (en) | Steel wire mesh framework plastic composite pipe and preparation method thereof | |
| CN109401643A (en) | One kind having high bonding force steel band reinforced polyethylene spiral ripple pipe special bonding resin material and preparation method thereof | |
| CN107151384A (en) | It is a kind of for modified poly propylene composition of solar cell backboard and preparation method thereof | |
| CN101735398A (en) | Interfacial compatilizer for wood-plastic composite material and method for preparing same | |
| CN103215002B (en) | Hot melt adhesive containing water-soluble nanoscale silica sol and preparation method thereof | |
| CN109897569B (en) | Conductive adhesive resin for steel wire pipe for coal mine, preparation method of conductive adhesive resin and steel wire pipe | |
| CN102161730B (en) | Special adhesive resin for wire-frame-reinforced polyethylene tube and production method thereof | |
| CN102585729A (en) | Low-melting-point adhesive resin as well as preparation method and application thereof | |
| CN102786632A (en) | Adhesion resin used for steel mesh skeleton polyethylene composite pipe | |
| CN102453271B (en) | High-strength pressure-resistance polyethylene composition and preparation method thereof | |
| CN101402812B (en) | Conductive thermoplastic powder, preparation and uses thereof | |
| CN110295019B (en) | Polyethylene pipe bonding material and preparation method thereof | |
| CN108361450A (en) | Wet desulphurization mineral slurry conveys the corrosion-resistant multiple tube of high abrasion and preparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |