CN110724479A - Special hot-melt pressure-sensitive adhesive for high-molecular self-adhesive waterproof adhesive tape and preparation method thereof - Google Patents
Special hot-melt pressure-sensitive adhesive for high-molecular self-adhesive waterproof adhesive tape and preparation method thereof Download PDFInfo
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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
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/35—Heat-activated
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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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/387—Block-copolymers
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- 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
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- 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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- 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
- C09J2453/00—Presence of block copolymer
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Abstract
The invention discloses a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof adhesive tape, which comprises the following preparation raw materials in parts by weight: 40-50 parts of modified SIS, 15-25 parts of tackifying resin, 8-12 parts of dispersing agent and 0.05-0.2 part of trimethoxy silane. The hot-melt pressure-sensitive adhesive and the polyethylene material have higher binding force under the conventional condition, the peel strength can still keep high level after being soaked in water, the requirements of wrapping, leakage repairing, leakage prevention and the like of a PE pipe can be met, the use is convenient, and the application prospect is wide.
Description
Technical Field
The invention relates to the field of hot-melt pressure-sensitive adhesives, in particular to a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof adhesive tape and a preparation method thereof.
Background
Polyethylene is a common thermoplastic resin material in industrial production and daily life, has good low-temperature resistance and chemical stability, is flexible and has low water absorption and water permeability, so that the polyethylene can be made into a water delivery pipe. Because the reaction of the polyethylene possibly existing in the preparation process is incomplete, the residual unsaturated bonds in the material can be broken under the conditions of light, heat and oxygen, and the pipe becomes brittle and breaks after long-term use.
At present, waterproof adhesive tapes for water pipe leakage repair and leakage prevention exist in the market, but due to the fact that polyethylene is nonpolar, the bonding force between a common waterproof adhesive tape and the polyethylene is poor, and the peeling force can be sharply reduced after the waterproof adhesive tape is soaked in water, so that a hot melt pressure-sensitive adhesive special for waterproof adhesive tape products, which can realize high peeling strength under conventional conditions and can not influence the peeling strength after the waterproof adhesive tape is soaked in water, is needed.
Disclosure of Invention
In order to solve the above problems, the first aspect of the present invention provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials, by weight: 40-50 parts of modified SIS, 15-25 parts of tackifying resin, 8-12 parts of dispersing agent and 0.05-0.2 part of trimethoxy silane.
As a preferred technical scheme, the modification method of the modified SIS is blending modification.
As a preferred technical scheme, the modifying agent for modifying the SIS is selected from one or a mixture of more of SBS, SEBS, EPDM and EVA.
As a preferred technical solution, the weight ratio of SIS to modifier in the modified SIS is 1: (0.4-0.6).
As a preferable technical scheme, the tackifying resin is natural resin and/or synthetic resin.
As a preferable technical scheme, the natural resin is rosin resin and/or terpene resin.
As a preferred embodiment, the synthetic resin is petroleum resin; the petroleum resin is selected from one or more of carbon five resin, carbon nine resin, carbon acanthopanax hydrogen resin and carbon nine hydrogenated resin.
As a preferred technical scheme, the dispersing agent is selected from one or more of polyethylene wax, paraffin wax, naphthenic oil and white oil.
As a preferred technical scheme, the trimethoxy silane is selected from one or more of 3-glycidoxypropyl trimethoxy silane, propyltrimethoxy silane, styrene ethyl trimethoxy silane, 3-aminopropyl trimethoxy silane and acryloxy methyl trimethoxy silane.
The second aspect of the invention provides a preparation method of the hot-melt pressure-sensitive adhesive special for the macromolecular self-adhesive waterproof adhesive tape, which comprises the following steps: and (3) stirring and mixing the modified SIS, the tackifying resin and the dispersing agent under a heating condition, cooling and discharging.
Has the advantages that: the hot-melt pressure-sensitive adhesive special for the high-molecular self-adhesive waterproof adhesive tape has higher binding force with a polyethylene material under conventional conditions, the peel strength can still keep high level after being soaked in water, the requirements of wrapping, leakage repairing, leakage prevention and the like of a PE pipe can be met, the use is convenient, and the application prospect is wide.
Detailed Description
The invention will be further understood by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.
As used herein, a feature that does not define a singular or plural form is also intended to include a plural form of the feature unless the context clearly indicates otherwise. It will be further understood that the term "prepared from …," as used herein, is synonymous with "comprising," including, "comprising," "having," "including," and/or "containing," when used in this specification means that the recited composition, step, method, article, or device is present, but does not preclude the presence or addition of one or more other compositions, steps, methods, articles, or devices. Furthermore, the use of "preferred," "preferably," "more preferred," etc., when describing embodiments of the present application, is meant to refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. In addition, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
In order to solve the above problems, the first aspect of the present invention provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials, by weight: 40-50 parts of modified SIS, 15-25 parts of tackifying resin, 8-12 parts of dispersing agent and 0.05-0.2 part of trimethoxy silane.
In some preferred embodiments, the starting materials for the preparation comprise: 45 parts of modified SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
Modified SIS
SIS refers to a styrene-isoprene-styrene block copolymer prepared by taking styrene and isoprene as raw materials, wherein the middle part of the styrene-isoprene-styrene block copolymer is a soft rubber chain segment which is isolated from each other, and the two ends of the styrene-isoprene-styrene block copolymer are hard plastic chain segments, so that the styrene-isoprene-styrene block copolymer has excellent performances of rubber and plastics and is mainly used for hot melt pressure sensitive adhesives.
In some embodiments, the modification method of the modified SIS may list epoxidation modification, sulfonation modification, graft modification, blend modification; preferably, the modification method of the modified SIS is blending modification.
In some preferred embodiments, the modifying agent for modifying SIS is selected from a mixture of one or more of SBS, SEBS, EPDM, EVA; further preferably, the modifying agent for modifying SIS is SBS.
In some preferred embodiments, the weight ratio of SIS to modifier in the modified SIS is 1: (0.4-0.6); further preferably, the weight ratio of SIS to modifier in the modified SIS is 1: 0.5.
the blending modification process in the present invention may be any one well known to those skilled in the art, such as physical blending under heating.
The SIS is produced by Ningbo Jinhaichen photochemical corporation, and the number of the SIS can be JH-8151, JH-8152, JH-8161 and JH-8291, preferably JH-8151, the styrene content of the SIS is 15-17 wt%, and the average value is 16 wt%.
SBS in the present invention is produced by the Huaxing petrochemical Co., Ltd of holy, and its trade name is YH-791, YH-792, YH-796, preferably YH-791, and its styrene content is 30 wt%.
The method for measuring the styrene content of the SIS, SBS in the present invention may be any one well known to those skilled in the art, such as liquid chromatography.
Tackifying resins
The tackifying resin is used as a compounding agent of the rubber material, has the characteristics of high softening point, high viscosity and the like, and can increase the adhesive force of the polymer and improve the initial viscosity after being added.
In some preferred embodiments, the tackifying resin is a natural resin and/or a synthetic resin; further preferably, the tackifying resin is a mixture of natural resin and synthetic resin.
In some embodiments, the natural resin is a rosin resin and/or a terpene resin; preferably, the natural resin is a rosin resin.
In some embodiments, the rosin resin may be exemplified by disproportionated rosin resin, maleated rosin resin, glycerinated rosin resin, pentaerythritol rosin resin, polymerized rosin resin, hydrogenated rosin resin; preferably, the rosin resin is a glycerol rosin resin.
The glycerin rosin resin is produced by the Cinax sinomeniaca resin Co., Ltd, and the brand is SNS-138.
In some embodiments, the synthetic resin is a petroleum resin.
In some embodiments, the petroleum resin may be exemplified by carbon five petroleum resin, carbon nine petroleum resin, carbon eleutherobin hydrogen petroleum resin, carbon nine hydrogen petroleum resin, carbon five/carbon nine copolymerized petroleum resin, carbon five/carbon nine hydrogen copolymerized petroleum resin; preferably, the petroleum resin is selected from one or more of carbon five petroleum resin, carbon nine petroleum resin, carbon five hydrogen petroleum resin and carbon nine hydrogen petroleum resin; more preferably, the petroleum resin is a carbon five petroleum resin.
The carbo-penta petroleum resin of the present invention is produced by exxonmobil, and its brands include Escorez 1204, Escorez1304, Escorez 1401, and Escorez 1102, and Escorez 1204 is preferable.
In some preferred embodiments, the weight ratio of the natural resin to the synthetic resin is 1: (2-4); further preferably, the weight ratio of the natural resin to the synthetic resin is 1: 3.
trimethoxy silane
Trimethoxy silane can interact with the main structure of the polymer, so that the internal crosslinking of the structure is improved, and the mechanical property of the hot melt adhesive is improved.
In some preferred embodiments, the trimethoxysilane is selected from the group consisting of 3-glycidoxypropyltrimethoxysilane, propyltrimethoxysilane, styrene ethyltrimethoxysilane, 3-aminopropyltrimethoxysilane, acryloxymethyltrimethoxysilane, and mixtures of one or more thereof; more preferably, the trimethoxysilane is 3-glycidylpropyltrimethoxysilane.
The 3-glycidylpropyltrimethoxysilane (CAS number: 2530-83-8) of the present invention was produced by Dow Corning and was assigned the trade designation Z-6040.
Dispersing agent
The dispersing agent is added into the hot melt adhesive, so that a swelling effect can be generated on a high molecular structure, molecular chains are dispersed, the acting force among the molecular chains is reduced, and the wettability of the hot melt adhesive on a base material is improved.
In some preferred embodiments, the dispersant is selected from a mixture of one or more of polyethylene wax, paraffin wax, naphthenic oil, white oil; further preferably, the dispersing agent is polyethylene wax.
The polyethylene wax (CAS number: 9002-88-4) of the present invention is produced by HONEYWELL under the designation AC-8.
In some preferred embodiments, the weight ratio of the modified SIS to the tackifying resin to the dispersant is (4-5): (1-3): 1; more preferably, the weight ratio of the modified SIS to the tackifying resin to the dispersant is 4.5: 2: 1.
the inventor finds through careful research that adding trimethoxy silane can increase the crosslinking points in the sizing material, obviously improve the mechanical property, but also increase the rigidity of the flexible chain segment, so that the wettability is poor, and the bonding force between the adhesive tape and the PE pipe is reduced. The inventor finds in a great deal of practice and continuous exploration that when the SIS modified by using a specific modifier is mixed with a compound tackifying resin and a proper amount of dispersant, the binding force between an adhesive tape and a PE pipe is greatly improved, and the waterproof performance is also improved, because the SIS with low styrene content has a longer isoprene chain segment, when the SIS is wound with SBS molecules with a slightly short flexible chain, part of the isoprene chain segment can be protected, silane is connected with unsaturated bonds on the unwound chain segment, the silicon-oxygen bond with extremely strong rigidity can not cause too much negative influence on the whole flexibility of the structure, but the wound chain segment can also cause reduction of the flexibility and the viscosity to a certain degree; the interpenetration of the compound tackifying resin in a molecular structure can reduce the viscosity of a system and increase the viscosity of the hot melt adhesive, wherein the tackifying effect of the rosin resin is better than that of petroleum resin, but the compatibility of the adhesive tape and a PE (polyethylene) base material can be damaged due to more polar groups, so that the rosin resin can only be used in a proper amount; the dispersant molecules separate rubber molecular chains to open channels for the dispersion of tackifying resin in a system, so that the flexibility and rigidity of the whole structure are balanced on an interface between the adhesive tape and the PE pipe, the binding force and the cohesive force are both obviously improved, the binding force between the adhesive tape and the PE is increased, water molecules are difficult to permeate into the interface between the adhesive tape and the PE, and the waterproof performance of the adhesive tape is ensured.
In some preferred embodiments, the raw materials for preparing the hot-melt pressure-sensitive adhesive special for the high-molecular self-adhesive waterproof adhesive tape further comprise 0.5-2 parts of an ultraviolet absorber; further preferably, the raw materials for preparing the hot-melt pressure-sensitive adhesive special for the high-molecular self-adhesive waterproof tape further comprise 1 part of an ultraviolet absorbent.
In some preferred embodiments, the ultraviolet light absorber is selected from a mixture of one or more of UV-329, UV-326, UV-531, UV-234; more preferably, the ultraviolet absorber is UV-329.
UV-329(CAS number: 3147-75-9) in the present invention is produced by Tianjin Rianlong New materials, Inc.
The second aspect of the invention provides a preparation method of the hot-melt pressure-sensitive adhesive special for the macromolecular self-adhesive waterproof adhesive tape, which comprises the following steps: and (3) stirring and mixing the modified SIS, the tackifying resin and the dispersing agent under a heating condition, cooling and discharging.
Examples
The technical solution of the present invention will be described in detail below with reference to examples, but the scope of the present invention is not limited to the examples, and all the raw materials are commercially available unless otherwise specified.
Example 1
Embodiment 1 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the high-molecular self-adhesive waterproof adhesive tape, which comprises the following steps: and (3) stirring and mixing the modified SIS, the tackifying resin and the dispersing agent under a heating condition, cooling and discharging.
Example 2
Embodiment 2 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 40 parts of modified SIS, 15 parts of tackifying resin, 8 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 3
Embodiment 3 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 50 parts of modified SIS, 25 parts of tackifying resin, 12 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 4
Embodiment 4 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
The SIS is manufactured by Ningbo gold Haihesheng Chemicals GmbH under the designation JH-8151.
The tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 5
Embodiment 5 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is a rosin resin, and the rosin resin is a pentaerythritol rosin resin (manufactured by Cingenan resin Co., Ltd., SNS-145); the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 6
Embodiment 6 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 8 parts of dispersant and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 7
Embodiment 7 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 12 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 8
Embodiment 8 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-792 (the styrene content is 40 wt%); the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 9
Embodiment 9 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the trade mark of YH-796 (the styrene content is 20 wt%); the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 10
Embodiment 10 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is synthetic resin; the synthetic resin is petroleum resin; the petroleum resin is carbon five petroleum resin.
The trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the macromolecular self-adhesive waterproof tape, which is similar to the embodiment 1.
Example 11
Embodiment 11 provides a hot-melt pressure-sensitive adhesive special for a high-molecular self-adhesive waterproof tape, which comprises the following preparation raw materials in parts by weight: 45 parts of modified SIS, 20 parts of tackifying resin, 10 parts of dispersing agent and 0.1 part of trimethoxy silane.
The modification method of the modified SIS is blending modification, and the modifier is SBS; the SIS is produced by Ningbo gold Haihesheng photochemical company Limited and has the brand number of JH-8151; the SBS is produced by the Huaxing petrochemical company Limited of Baling and has the brand number of YH-791; the weight ratio of SIS to modifier is 1: 0.5.
the tackifying resin is a mixture of natural resin and synthetic resin; the natural resin is rosin resin, and the rosin resin is glycerol rosin resin; the synthetic resin is petroleum resin, and the petroleum resin is carbon five petroleum resin; the weight ratio of the natural resin to the synthetic resin is 1: 3.
the trimethoxy silane is 3-glycidyl propyl trimethoxy silane.
The dispersing agent is polyethylene wax.
The preparation raw materials also comprise 1 part of ultraviolet absorbent; the ultraviolet absorbent is UV-329.
The embodiment also provides a preparation method of the special hot-melt pressure-sensitive adhesive for the high-molecular self-adhesive waterproof adhesive tape, which comprises the following steps: and (3) stirring and mixing the modified SIS, the tackifying resin, the dispersing agent and the ultraviolet absorbent under a heating condition, cooling and discharging.
Evaluation of Performance
The hot-melt pressure-sensitive adhesive special for the high-molecular self-adhesive waterproof adhesive tape obtained in the embodiment 1 to 11 is tested, and the test contents comprise peel strength and waterproofness.
1. Peel strength: according to GB/T2792-1998 180-degree peel strength test method of pressure-sensitive adhesive tape, 20-30 g/m2The hot melt pressure sensitive adhesive obtained in examples 1 to 11 was coated on a PET film to prepare a test piece, and the test piece was tested, wherein the test piece had a width of 25mm ± 1mm and a length of 200mm, the test plate was a PE material, the test piece was rolled back and forth three times on the test piece with a pressure roller at a speed of about 300mm/min before the test, the test apparatus was a tensile testing machine, and the test result was an average value of 3 test pieces, and the results are shown in table 1.
2. Water resistance: according to GB/T2792-1998 180-degree peel strength test method of pressure-sensitive adhesive tape, 20-30 g/m2The hot-melt pressure-sensitive adhesive obtained in examples 1 to 11 was coated on a PET film to prepare a test piece, and the test piece was tested, wherein the test piece had a width of 25mm ± 1mm and a length of 200mm, the test plate was a PE material, the test piece was rolled back and forth three times on the test piece with a press roller at a speed of about 300mm/min, the test piece was completely immersed in water for 72 hours, and then taken out, dried and tested, the test apparatus was a tensile testing machine, the test result was a reduction rate of peel strength before and after immersion, and the test result was an average value of 3 test pieces, and the results are shown in table 1.
TABLE 1
| Examples | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| Peel strength (N/mm) | 2.4 | 2.5 | 2.3 | 1.2 | 1.8 | 1.4 | 1.9 | 1.5 | 1.3 | 1.2 | 2.4 |
| Water repellency (%) | 2.1 | 2.0 | 2.1 | 8.9 | 10.5 | 13.2 | 10.1 | 9.6 | 13.6 | 14.7 | 2.0 |
According to embodiments 1 to 11, the hot-melt pressure-sensitive adhesive special for the high-molecular self-adhesive waterproof tape has high binding force with a PE material, and the peeling strength can still keep a high level after soaking, so that the requirements of wrapping, leakage repairing and the like of a PE pipe can be met, and the hot-melt pressure-sensitive adhesive has a wide application prospect.
Finally, it should be understood that the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and 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 special hot-melt pressure-sensitive adhesive for the high-molecular self-adhesive waterproof adhesive tape is characterized by comprising the following preparation raw materials in parts by weight: 40-50 parts of modified SIS, 15-25 parts of tackifying resin, 8-12 parts of dispersing agent and 0.05-0.2 part of trimethoxy silane.
2. The special hot-melt pressure-sensitive adhesive for the self-adhesive waterproof polymer tape of claim 1, wherein the modification method of the modified SIS is blending modification.
3. The hot-melt pressure-sensitive adhesive special for the self-adhesive waterproof macromolecule tapes as claimed in claim 2, wherein the modifying agent of the modified SIS is selected from one or a mixture of SBS, SEBS, EPDM and EVA.
4. The hot-melt pressure-sensitive adhesive special for the high-molecular self-adhesive waterproof tape according to claim 3, wherein the weight ratio of the SIS to the modifier in the modified SIS is 1: (0.4-0.6).
5. The hot-melt pressure-sensitive adhesive special for the self-adhesive waterproof macromolecule tape as claimed in claim 1, wherein the tackifying resin is natural resin and/or synthetic resin.
6. The hot-melt pressure-sensitive adhesive special for the self-adhesive waterproof macromolecule tape as claimed in claim 5, wherein the natural resin is rosin resin and/or terpene resin.
7. The special hot-melt pressure-sensitive adhesive for the self-adhesive waterproof polymer tape of claim 5, wherein the synthetic resin is petroleum resin; the petroleum resin is selected from one or more of carbon five petroleum resin, carbon nine petroleum resin, carbon acanthopanax hydrogen petroleum resin and carbon nine hydrogen petroleum resin.
8. The hot-melt pressure-sensitive adhesive special for the self-adhesive waterproof macromolecule tape as claimed in claim 1, wherein the dispersant is one or more selected from polyethylene wax, paraffin wax, naphthenic oil and white oil.
9. The special hot-melt pressure-sensitive adhesive for the self-adhesive waterproof polymer tape according to claim 1, wherein the trimethoxysilane is one or more selected from 3-glycidylpropyltrimethoxysilane, propyltrimethoxysilane, styrene ethyltrimethoxysilane, 3-aminopropyltrimethoxysilane and acryloxymethyltrimethoxysilane.
10. The preparation method of the special hot-melt pressure-sensitive adhesive for the high-molecular self-adhesive waterproof tape according to any one of claims 1 to 9, which is characterized by comprising the following steps: and (3) stirring and mixing the modified SIS, the tackifying resin and the dispersing agent under a heating condition, cooling and discharging.
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